]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - model_brush.c
implemented QW skin support, it's broken on skins that are not the same
[xonotic/darkplaces.git] / model_brush.c
index b581ee2438ce0de8212ef04719ea345cda34d4ca..f7bd00c77a6beb8f8a6201d860dcc662a1b28e39 100644 (file)
@@ -26,24 +26,30 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "wad.h"
 
 
-//cvar_t r_subdivide_size = {CVAR_SAVE, "r_subdivide_size", "128"};
-cvar_t halflifebsp = {0, "halflifebsp", "0"};
-cvar_t mcbsp = {0, "mcbsp", "0"};
-cvar_t r_novis = {0, "r_novis", "0"};
-cvar_t r_miplightmaps = {CVAR_SAVE, "r_miplightmaps", "0"};
-cvar_t r_lightmaprgba = {0, "r_lightmaprgba", "1"};
-cvar_t r_nosurftextures = {0, "r_nosurftextures", "0"};
-cvar_t r_subdivisions_tolerance = {0, "r_subdivisions_tolerance", "4"};
-cvar_t r_subdivisions_mintess = {0, "r_subdivisions_mintess", "1"};
-cvar_t r_subdivisions_maxtess = {0, "r_subdivisions_maxtess", "1024"};
-cvar_t r_subdivisions_maxvertices = {0, "r_subdivisions_maxvertices", "65536"};
-cvar_t r_subdivisions_collision_tolerance = {0, "r_subdivisions_collision_tolerance", "15"};
-cvar_t r_subdivisions_collision_mintess = {0, "r_subdivisions_collision_mintess", "1"};
-cvar_t r_subdivisions_collision_maxtess = {0, "r_subdivisions_collision_maxtess", "1024"};
-cvar_t r_subdivisions_collision_maxvertices = {0, "r_subdivisions_collision_maxvertices", "4225"};
-cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1"};
-cvar_t mod_q3bsp_optimizedtraceline = {0, "mod_q3bsp_optimizedtraceline", "1"};
-cvar_t mod_q3bsp_debugtracebrush = {0, "mod_q3bsp_debugtracebrush", "0"};
+//cvar_t r_subdivide_size = {CVAR_SAVE, "r_subdivide_size", "128", "how large water polygons should be (smaller values produce more polygons which give better warping effects)"};
+cvar_t halflifebsp = {0, "halflifebsp", "0", "indicates the current map is hlbsp format (useful to know because of different bounding box sizes)"};
+cvar_t mcbsp = {0, "mcbsp", "0", "indicates the current map is mcbsp format (useful to know because of different bounding box sizes)"};
+cvar_t r_novis = {0, "r_novis", "0", "draws whole level, see also sv_cullentities_pvs 0"};
+cvar_t r_lightmaprgba = {0, "r_lightmaprgba", "1", "whether to use RGBA (32bit) or RGB (24bit) lightmaps"};
+cvar_t r_nosurftextures = {0, "r_nosurftextures", "0", "pretends there was no texture lump found in the q1bsp/hlbsp loading (useful for debugging this rare case)"};
+cvar_t r_subdivisions_tolerance = {0, "r_subdivisions_tolerance", "4", "maximum error tolerance on curve subdivision for rendering purposes (in other words, the curves will be given as many polygons as necessary to represent curves at this quality)"};
+cvar_t r_subdivisions_mintess = {0, "r_subdivisions_mintess", "1", "minimum number of subdivisions (values above 1 will smooth curves that don't need it)"};
+cvar_t r_subdivisions_maxtess = {0, "r_subdivisions_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
+cvar_t r_subdivisions_maxvertices = {0, "r_subdivisions_maxvertices", "65536", "maximum vertices allowed per subdivided curve"};
+cvar_t r_subdivisions_collision_tolerance = {0, "r_subdivisions_collision_tolerance", "15", "maximum error tolerance on curve subdivision for collision purposes (usually a larger error tolerance than for rendering)"};
+cvar_t r_subdivisions_collision_mintess = {0, "r_subdivisions_collision_mintess", "1", "minimum number of subdivisions (values above 1 will smooth curves that don't need it)"};
+cvar_t r_subdivisions_collision_maxtess = {0, "r_subdivisions_collision_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
+cvar_t r_subdivisions_collision_maxvertices = {0, "r_subdivisions_collision_maxvertices", "4225", "maximum vertices allowed per subdivided curve"};
+cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1", "enables collisions with curves (SLOW)"};
+cvar_t mod_q3bsp_optimizedtraceline = {0, "mod_q3bsp_optimizedtraceline", "1", "whether to use optimized traceline code for line traces (as opposed to tracebox code)"};
+cvar_t mod_q3bsp_debugtracebrush = {0, "mod_q3bsp_debugtracebrush", "0", "selects different tracebrush bsp recursion algorithms (for debugging purposes only)"};
+cvar_t mod_q3bsp_lightmapmergepower = {CVAR_SAVE, "mod_q3bsp_lightmapmergepower", "4", "merges the quake3 128x128 lightmap textures into larger lightmap group textures to speed up rendering, 1 = 256x256, 2 = 512x512, 3 = 1024x1024, 4 = 2048x2048, 5 = 4096x4096, ..."};
+
+static texture_t mod_q1bsp_texture_solid;
+static texture_t mod_q1bsp_texture_sky;
+static texture_t mod_q1bsp_texture_lava;
+static texture_t mod_q1bsp_texture_slime;
+static texture_t mod_q1bsp_texture_water;
 
 void Mod_BrushInit(void)
 {
@@ -51,7 +57,6 @@ void Mod_BrushInit(void)
        Cvar_RegisterVariable(&halflifebsp);
        Cvar_RegisterVariable(&mcbsp);
        Cvar_RegisterVariable(&r_novis);
-       Cvar_RegisterVariable(&r_miplightmaps);
        Cvar_RegisterVariable(&r_lightmaprgba);
        Cvar_RegisterVariable(&r_nosurftextures);
        Cvar_RegisterVariable(&r_subdivisions_tolerance);
@@ -65,6 +70,32 @@ void Mod_BrushInit(void)
        Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
        Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
        Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
+       Cvar_RegisterVariable(&mod_q3bsp_lightmapmergepower);
+
+       memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
+       strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
+       mod_q1bsp_texture_solid.surfaceflags = 0;
+       mod_q1bsp_texture_solid.supercontents = SUPERCONTENTS_SOLID;
+
+       mod_q1bsp_texture_sky = mod_q1bsp_texture_solid;
+       strlcpy(mod_q1bsp_texture_sky.name, "sky", sizeof(mod_q1bsp_texture_sky.name));
+       mod_q1bsp_texture_sky.surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
+       mod_q1bsp_texture_sky.supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
+
+       mod_q1bsp_texture_lava = mod_q1bsp_texture_solid;
+       strlcpy(mod_q1bsp_texture_lava.name, "*lava", sizeof(mod_q1bsp_texture_lava.name));
+       mod_q1bsp_texture_lava.surfaceflags = Q3SURFACEFLAG_NOMARKS;
+       mod_q1bsp_texture_lava.supercontents = SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
+
+       mod_q1bsp_texture_slime = mod_q1bsp_texture_solid;
+       strlcpy(mod_q1bsp_texture_slime.name, "*slime", sizeof(mod_q1bsp_texture_slime.name));
+       mod_q1bsp_texture_slime.surfaceflags = Q3SURFACEFLAG_NOMARKS;
+       mod_q1bsp_texture_slime.supercontents = SUPERCONTENTS_SLIME;
+
+       mod_q1bsp_texture_water = mod_q1bsp_texture_solid;
+       strlcpy(mod_q1bsp_texture_water.name, "*water", sizeof(mod_q1bsp_texture_water.name));
+       mod_q1bsp_texture_water.surfaceflags = Q3SURFACEFLAG_NOMARKS;
+       mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
 }
 
 static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
@@ -116,11 +147,13 @@ static int Mod_Q1BSP_FindBoxClusters(model_t *model, const vec3_t mins, const ve
                if (node->plane)
                {
                        // node - recurse down the BSP tree
-                       int side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
-                       if (side < 2)
+                       int sides = BoxOnPlaneSide(mins, maxs, node->plane);
+                       if (sides < 3)
                        {
+                               if (sides == 0)
+                                       return -1; // ERROR: NAN bounding box!
                                // box is on one side of plane, take that path
-                               node = node->children[side];
+                               node = node->children[sides-1];
                        }
                        else
                        {
@@ -179,11 +212,13 @@ static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const unsigned char *pvs, co
                if (node->plane)
                {
                        // node - recurse down the BSP tree
-                       int side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
-                       if (side < 2)
+                       int sides = BoxOnPlaneSide(mins, maxs, node->plane);
+                       if (sides < 3)
                        {
+                               if (sides == 0)
+                                       return -1; // ERROR: NAN bounding box!
                                // box is on one side of plane, take that path
-                               node = node->children[side];
+                               node = node->children[sides-1];
                        }
                        else
                        {
@@ -248,11 +283,13 @@ static int Mod_Q1BSP_BoxTouchingLeafPVS(model_t *model, const unsigned char *pvs
                if (node->plane)
                {
                        // node - recurse down the BSP tree
-                       int side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
-                       if (side < 2)
+                       int sides = BoxOnPlaneSide(mins, maxs, node->plane);
+                       if (sides < 3)
                        {
+                               if (sides == 0)
+                                       return -1; // ERROR: NAN bounding box!
                                // box is on one side of plane, take that path
-                               node = node->children[side];
+                               node = node->children[sides-1];
                        }
                        else
                        {
@@ -317,11 +354,13 @@ static int Mod_Q1BSP_BoxTouchingVisibleLeafs(model_t *model, const unsigned char
                if (node->plane)
                {
                        // node - recurse down the BSP tree
-                       int side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
-                       if (side < 2)
+                       int sides = BoxOnPlaneSide(mins, maxs, node->plane);
+                       if (sides < 3)
                        {
+                               if (sides == 0)
+                                       return -1; // ERROR: NAN bounding box!
                                // box is on one side of plane, take that path
-                               node = node->children[side];
+                               node = node->children[sides-1];
                        }
                        else
                        {
@@ -393,10 +432,10 @@ static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *in
                {
                        for (k = 0;k < surface->num_triangles;k++)
                        {
-                               tri = (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle) + k * 3;
-                               VectorCopy((surface->groupmesh->data_vertex3f + tri[0] * 3), vert[0]);
-                               VectorCopy((surface->groupmesh->data_vertex3f + tri[1] * 3), vert[1]);
-                               VectorCopy((surface->groupmesh->data_vertex3f + tri[2] * 3), vert[2]);
+                               tri = (info->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle) + k * 3;
+                               VectorCopy((info->model->surfmesh.data_vertex3f + tri[0] * 3), vert[0]);
+                               VectorCopy((info->model->surfmesh.data_vertex3f + tri[1] * 3), vert[1]);
+                               VectorCopy((info->model->surfmesh.data_vertex3f + tri[2] * 3), vert[2]);
                                VectorSubtract(vert[1], vert[0], edge[0]);
                                VectorSubtract(vert[2], vert[1], edge[1]);
                                CrossProduct(edge[1], edge[0], facenormal);
@@ -533,16 +572,16 @@ int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents
                case CONTENTS_SLIME:
                        return SUPERCONTENTS_SLIME;
                case CONTENTS_LAVA:
-                       return SUPERCONTENTS_LAVA;
+                       return SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
                case CONTENTS_SKY:
-                       return SUPERCONTENTS_SKY;
+                       return SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
        }
        return 0;
 }
 
 int Mod_Q1BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
 {
-       if (supercontents & SUPERCONTENTS_SOLID)
+       if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
                return CONTENTS_SOLID;
        if (supercontents & SUPERCONTENTS_SKY)
                return CONTENTS_SKY;
@@ -577,6 +616,7 @@ RecursiveHullCheckTraceInfo_t;
 #define HULLCHECKSTATE_SOLID 1
 #define HULLCHECKSTATE_DONE 2
 
+extern cvar_t collision_prefernudgedfraction;
 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
 {
        // status variables, these don't need to be saved on the stack when
@@ -606,6 +646,18 @@ loc0:
                        t->trace->inwater = true;
                if (num == 0)
                        t->trace->inopen = true;
+               if (num & SUPERCONTENTS_SOLID)
+                       t->trace->hittexture = &mod_q1bsp_texture_solid;
+               else if (num & SUPERCONTENTS_SKY)
+                       t->trace->hittexture = &mod_q1bsp_texture_sky;
+               else if (num & SUPERCONTENTS_LAVA)
+                       t->trace->hittexture = &mod_q1bsp_texture_lava;
+               else if (num & SUPERCONTENTS_SLIME)
+                       t->trace->hittexture = &mod_q1bsp_texture_slime;
+               else
+                       t->trace->hittexture = &mod_q1bsp_texture_water;
+               t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
+               t->trace->hitsupercontents = num;
                if (num & t->trace->hitsupercontentsmask)
                {
                        // if the first leaf is solid, set startsolid
@@ -719,13 +771,16 @@ loc0:
        midf = (t1 - DIST_EPSILON) / (t1 - t2);
        t->trace->fraction = bound(0, midf, 1);
 
+       if (collision_prefernudgedfraction.integer)
+               t->trace->realfraction = t->trace->fraction;
+
 #if COLLISIONPARANOID >= 3
        Con_Print("D");
 #endif
        return HULLCHECKSTATE_DONE;
 }
 
-#if COLLISIONPARANOID < 2
+//#if COLLISIONPARANOID < 2
 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
 {
        while (num >= 0)
@@ -747,9 +802,9 @@ static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, i
                return HULLCHECKSTATE_EMPTY;
        }
 }
-#endif
+//#endif
 
-static void Mod_Q1BSP_TraceBox(struct model_s *model, int frame, trace_t *trace, const vec3_t boxstartmins, const vec3_t boxstartmaxs, const vec3_t boxendmins, const vec3_t boxendmaxs, int hitsupercontentsmask)
+static void Mod_Q1BSP_TraceBox(struct model_s *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
 {
        // this function currently only supports same size start and end
        double boxsize[3];
@@ -762,7 +817,7 @@ static void Mod_Q1BSP_TraceBox(struct model_s *model, int frame, trace_t *trace,
        rhc.trace->fraction = 1;
        rhc.trace->realfraction = 1;
        rhc.trace->allsolid = true;
-       VectorSubtract(boxstartmaxs, boxstartmins, boxsize);
+       VectorSubtract(boxmaxs, boxmins, boxsize);
        if (boxsize[0] < 3)
                rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
        else if (model->brush.ismcbsp)
@@ -795,22 +850,41 @@ static void Mod_Q1BSP_TraceBox(struct model_s *model, int frame, trace_t *trace,
                else
                        rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
        }
-       VectorSubtract(boxstartmins, rhc.hull->clip_mins, rhc.start);
-       VectorSubtract(boxendmins, rhc.hull->clip_mins, rhc.end);
+       VectorMAMAM(1, start, 1, boxmins, -1, rhc.hull->clip_mins, rhc.start);
+       VectorMAMAM(1, end, 1, boxmins, -1, rhc.hull->clip_mins, rhc.end);
        VectorSubtract(rhc.end, rhc.start, rhc.dist);
 #if COLLISIONPARANOID >= 2
        Con_Printf("t(%f %f %f,%f %f %f,%i %f %f %f)", rhc.start[0], rhc.start[1], rhc.start[2], rhc.end[0], rhc.end[1], rhc.end[2], rhc.hull - model->brushq1.hulls, rhc.hull->clip_mins[0], rhc.hull->clip_mins[1], rhc.hull->clip_mins[2]);
        Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
+       {
+
+               double test[3];
+               trace_t testtrace;
+               VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
+               memset(&testtrace, 0, sizeof(trace_t));
+               rhc.trace = &testtrace;
+               rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
+               rhc.trace->fraction = 1;
+               rhc.trace->realfraction = 1;
+               rhc.trace->allsolid = true;
+               VectorCopy(test, rhc.start);
+               VectorCopy(test, rhc.end);
+               VectorClear(rhc.dist);
+               Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
+               //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
+               if (!trace->startsolid && testtrace.startsolid)
+                       Con_Printf(" - ended in solid!\n");
+       }
        Con_Print("\n");
 #else
-       if (DotProduct(rhc.dist, rhc.dist))
+       if (VectorLength2(rhc.dist))
                Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
        else
                Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
 #endif
 }
 
-void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask, int boxsupercontents)
+void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, texture_t *boxtexture)
 {
 #if 1
        colbrushf_t cbox;
@@ -835,6 +909,12 @@ void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cm
        cbox_planes[3].normal[0] =  0;cbox_planes[3].normal[1] = -1;cbox_planes[3].normal[2] =  0;cbox_planes[3].dist = maxs[1] - cmins[1];
        cbox_planes[4].normal[0] =  0;cbox_planes[4].normal[1] =  0;cbox_planes[4].normal[2] =  1;cbox_planes[4].dist = cmaxs[2] - mins[2];
        cbox_planes[5].normal[0] =  0;cbox_planes[5].normal[1] =  0;cbox_planes[5].normal[2] = -1;cbox_planes[5].dist = maxs[2] - cmins[2];
+       cbox_planes[0].q3surfaceflags = boxq3surfaceflags;cbox_planes[0].texture = boxtexture;
+       cbox_planes[1].q3surfaceflags = boxq3surfaceflags;cbox_planes[1].texture = boxtexture;
+       cbox_planes[2].q3surfaceflags = boxq3surfaceflags;cbox_planes[2].texture = boxtexture;
+       cbox_planes[3].q3surfaceflags = boxq3surfaceflags;cbox_planes[3].texture = boxtexture;
+       cbox_planes[4].q3surfaceflags = boxq3surfaceflags;cbox_planes[4].texture = boxtexture;
+       cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
        memset(trace, 0, sizeof(trace_t));
        trace->hitsupercontentsmask = hitsupercontentsmask;
        trace->fraction = 1;
@@ -908,11 +988,81 @@ void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cm
 #endif
 }
 
+static int Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p1[3], double p2[3])
+{
+       double t1, t2;
+       double midf, mid[3];
+       int ret, side;
+
+       // check for empty
+       while (node->plane)
+       {
+               // find the point distances
+               mplane_t *plane = node->plane;
+               if (plane->type < 3)
+               {
+                       t1 = p1[plane->type] - plane->dist;
+                       t2 = p2[plane->type] - plane->dist;
+               }
+               else
+               {
+                       t1 = DotProduct (plane->normal, p1) - plane->dist;
+                       t2 = DotProduct (plane->normal, p2) - plane->dist;
+               }
+
+               if (t1 < 0)
+               {
+                       if (t2 < 0)
+                       {
+                               node = node->children[1];
+                               continue;
+                       }
+                       side = 1;
+               }
+               else
+               {
+                       if (t2 >= 0)
+                       {
+                               node = node->children[0];
+                               continue;
+                       }
+                       side = 0;
+               }
+
+               midf = t1 / (t1 - t2);
+               VectorLerp(p1, midf, p2, mid);
+
+               // recurse both sides, front side first
+               // return 2 if empty is followed by solid (hit something)
+               // do not return 2 if both are solid or both empty,
+               // or if start is solid and end is empty
+               // as these degenerate cases usually indicate the eye is in solid and
+               // should see the target point anyway
+               ret = Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side    ], p1, mid);
+               if (ret != 0)
+                       return ret;
+               ret = Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ^ 1], mid, p2);
+               if (ret != 1)
+                       return ret;
+               return 2;
+       }
+       return ((mleaf_t *)node)->clusterindex < 0;
+}
+
+static qboolean Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end)
+{
+       // this function currently only supports same size start and end
+       double tracestart[3], traceend[3];
+       VectorCopy(start, tracestart);
+       VectorCopy(end, traceend);
+       return Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend) != 2;
+}
+
 static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(model_t *model, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const mnode_t *node, float x, float y, float startz, float endz)
 {
-       int side, distz = endz - startz;
+       int side;
        float front, back;
-       float mid;
+       float mid, distz = endz - startz;
 
 loc0:
        if (!node->plane)
@@ -1043,7 +1193,17 @@ middle sample (the one which was requested)
 
 void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
 {
-       Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, p[0], p[1], p[2], p[2] - 65536);
+       // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
+       VectorSet(diffusenormal, 0, 0, 1);
+
+       if (!model->brushq1.lightdata)
+       {
+               VectorSet(ambientcolor, 1, 1, 1);
+               VectorSet(diffusecolor, 0, 0, 0);
+               return;
+       }
+
+       Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, p[0], p[1], p[2] + 0.125, p[2] - 65536);
 }
 
 static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
@@ -1054,7 +1214,7 @@ static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char
        {
                if (in == inend)
                {
-                       Con_Printf("Mod_Q1BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
+                       Con_Printf("Mod_Q1BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
                        return;
                }
                c = *in++;
@@ -1064,14 +1224,14 @@ static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char
                {
                        if (in == inend)
                        {
-                               Con_Printf("Mod_Q1BSP_DecompressVis: input underrun (during zero-run) on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
+                               Con_Printf("Mod_Q1BSP_DecompressVis: input underrun (during zero-run) on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
                                return;
                        }
                        for (c = *in++;c > 0;c--)
                        {
                                if (out == outend)
                                {
-                                       Con_Printf("Mod_Q1BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
+                                       Con_Printf("Mod_Q1BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
                                        return;
                                }
                                *out++ = 0;
@@ -1092,11 +1252,15 @@ void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesp
        int i, j;
        unsigned solidpixels[128*128], alphapixels[128*128];
 
+       // allocate a texture pool if we need it
+       if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
+               loadmodel->texturepool = R_AllocTexturePool();
+
        // if sky isn't the right size, just use it as a solid layer
        if (width != 256 || height != 128)
        {
                loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", width, height, src, bytesperpixel == 4 ? TEXTYPE_RGBA : TEXTYPE_PALETTE, TEXF_PRECACHE, bytesperpixel == 1 ? palette_complete : NULL);
-               loadmodel->brush.alphaskytexture = NULL;;
+               loadmodel->brush.alphaskytexture = NULL;
                return;
        }
 
@@ -1154,11 +1318,13 @@ void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesp
 static void Mod_Q1BSP_LoadTextures(lump_t *l)
 {
        int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
+       skinframe_t *skinframe;
        miptex_t *dmiptex;
        texture_t *tx, *tx2, *anims[10], *altanims[10];
        dmiptexlump_t *m;
        unsigned char *data, *mtdata;
-       char name[MAX_QPATH];
+       const char *s;
+       char mapname[MAX_QPATH], name[MAX_QPATH];
 
        loadmodel->data_textures = NULL;
 
@@ -1168,32 +1334,46 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
                m = (dmiptexlump_t *)(mod_base + l->fileofs);
                m->nummiptex = LittleLong (m->nummiptex);
                loadmodel->num_textures = m->nummiptex + 2;
+               loadmodel->num_texturesperskin = loadmodel->num_textures;
        }
        else
        {
                m = NULL;
                loadmodel->num_textures = 2;
+               loadmodel->num_texturesperskin = loadmodel->num_textures;
        }
 
        loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
 
        // fill out all slots with notexture
+       if (cls.state != ca_dedicated)
+               skinframe = R_SkinFrame_LoadMissing();
+       else
+               skinframe = NULL;
        for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
        {
-               strcpy(tx->name, "NO TEXTURE FOUND");
+               strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
                tx->width = 16;
                tx->height = 16;
-               tx->skin.base = r_texture_notexture;
-               tx->basematerialflags = 0;
+               if (cls.state != ca_dedicated)
+               {
+                       tx->numskinframes = 1;
+                       tx->skinframerate = 1;
+                       tx->skinframes[0] = skinframe;
+                       tx->currentskinframe = tx->skinframes[0];
+                       tx->basematerialflags = 0;
+               }
                if (i == loadmodel->num_textures - 1)
                {
-                       tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
-                       tx->supercontents = SUPERCONTENTS_WATER;
+                       tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
+                       tx->supercontents = mod_q1bsp_texture_water.supercontents;
+                       tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
                }
                else
                {
                        tx->basematerialflags |= MATERIALFLAG_WALL;
-                       tx->supercontents = SUPERCONTENTS_SOLID;
+                       tx->supercontents = mod_q1bsp_texture_solid.supercontents;
+                       tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
                }
                tx->currentframe = tx;
        }
@@ -1201,6 +1381,11 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
        if (!m)
                return;
 
+       s = loadmodel->name;
+       if (!strncasecmp(s, "maps/", 5))
+               s += 5;
+       FS_StripExtension(s, mapname, sizeof(mapname));
+
        // just to work around bounds checking when debugging with it (array index out of bounds error thing)
        dofs = m->dataofs;
        // LordHavoc: mostly rewritten map texture loader
@@ -1240,7 +1425,7 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
                                name[j] += 'a' - 'A';
 
                tx = loadmodel->data_textures + i;
-               strcpy(tx->name, name);
+               strlcpy(tx->name, name, sizeof(tx->name));
                tx->width = mtwidth;
                tx->height = mtheight;
 
@@ -1250,103 +1435,107 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
                        Con_Printf("warning: unnamed texture in %s, renaming to %s\n", loadmodel->name, tx->name);
                }
 
-               // LordHavoc: HL sky textures are entirely different than quake
-               if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
+               if (tx->name[0] == '*')
                {
-                       if (loadmodel->isworldmodel)
+                       if (!strncmp(tx->name, "*lava", 5))
                        {
-                               data = loadimagepixels(tx->name, false, 0, 0);
-                               if (data)
-                               {
-                                       R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
-                                       Mem_Free(data);
-                               }
-                               else if (mtdata != NULL)
-                                       R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
+                               tx->supercontents = mod_q1bsp_texture_lava.supercontents;
+                               tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
+                       }
+                       else if (!strncmp(tx->name, "*slime", 6))
+                       {
+                               tx->supercontents = mod_q1bsp_texture_slime.supercontents;
+                               tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
                        }
+                       else
+                       {
+                               tx->supercontents = mod_q1bsp_texture_water.supercontents;
+                               tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
+                       }
+               }
+               else if (!strncmp(tx->name, "sky", 3))
+               {
+                       tx->supercontents = mod_q1bsp_texture_sky.supercontents;
+                       tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
                }
                else
                {
-                       if (!Mod_LoadSkinFrame(&tx->skin, tx->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, true))
+                       tx->supercontents = mod_q1bsp_texture_solid.supercontents;
+                       tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
+               }
+
+               if (cls.state != ca_dedicated)
+               {
+                       // LordHavoc: HL sky textures are entirely different than quake
+                       if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
                        {
-                               // did not find external texture, load it from the bsp or wad3
-                               if (loadmodel->brush.ishlbsp)
+                               if (loadmodel->isworldmodel)
                                {
-                                       // internal texture overrides wad
-                                       unsigned char *pixels, *freepixels, *fogpixels;
-                                       pixels = freepixels = NULL;
-                                       if (mtdata)
-                                               pixels = W_ConvertWAD3Texture(dmiptex);
-                                       if (pixels == NULL)
-                                               pixels = freepixels = W_GetTexture(tx->name);
-                                       if (pixels != NULL)
+                                       data = loadimagepixels(tx->name, false, 0, 0);
+                                       if (data)
                                        {
-                                               tx->width = image_width;
-                                               tx->height = image_height;
-                                               tx->skin.base = tx->skin.merged = R_LoadTexture2D(loadmodel->texturepool, tx->name, image_width, image_height, pixels, TEXTYPE_RGBA, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, NULL);
-                                               if (Image_CheckAlpha(pixels, image_width * image_height, true))
+                                               R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
+                                               Mem_Free(data);
+                                       }
+                                       else if (mtdata != NULL)
+                                               R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
+                               }
+                       }
+                       else
+                       {
+                               skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s/%s", mapname, tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false);
+                               if (!skinframe)
+                                       skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s", tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false);
+                               if (!skinframe)
+                               {
+                                       // did not find external texture, load it from the bsp or wad3
+                                       if (loadmodel->brush.ishlbsp)
+                                       {
+                                               // internal texture overrides wad
+                                               unsigned char *pixels, *freepixels;
+                                               pixels = freepixels = NULL;
+                                               if (mtdata)
+                                                       pixels = W_ConvertWAD3Texture(dmiptex);
+                                               if (pixels == NULL)
+                                                       pixels = freepixels = W_GetTexture(tx->name);
+                                               if (pixels != NULL)
                                                {
-                                                       fogpixels = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4);
-                                                       for (j = 0;j < image_width * image_height * 4;j += 4)
-                                                       {
-                                                               fogpixels[j + 0] = 255;
-                                                               fogpixels[j + 1] = 255;
-                                                               fogpixels[j + 2] = 255;
-                                                               fogpixels[j + 3] = pixels[j + 3];
-                                                       }
-                                                       tx->skin.fog = R_LoadTexture2D(loadmodel->texturepool, tx->name, image_width, image_height, pixels, TEXTYPE_RGBA, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, NULL);
-                                                       Mem_Free(fogpixels);
+                                                       tx->width = image_width;
+                                                       tx->height = image_height;
+                                                       skinframe = R_SkinFrame_LoadInternal(tx->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, false, pixels, image_width, image_height, 32, NULL, NULL);
                                                }
+                                               if (freepixels)
+                                                       Mem_Free(freepixels);
                                        }
-                                       if (freepixels)
-                                               Mem_Free(freepixels);
+                                       else if (mtdata) // texture included
+                                               skinframe = R_SkinFrame_LoadInternal(tx->name, TEXF_MIPMAP | TEXF_PRECACHE | TEXF_PICMIP, false, r_fullbrights.integer, mtdata, tx->width, tx->height, 8, NULL, NULL);
                                }
-                               else if (mtdata) // texture included
-                                       Mod_LoadSkinFrame_Internal(&tx->skin, tx->name, TEXF_MIPMAP | TEXF_PRECACHE | TEXF_PICMIP, false, tx->name[0] != '*' && r_fullbrights.integer, mtdata, tx->width, tx->height);
+                               // if skinframe is still NULL the "missing" texture will be used
+                               if (skinframe)
+                                       tx->skinframes[0] = skinframe;
                        }
-               }
-               if (tx->skin.base == NULL)
-               {
-                       // no texture found
-                       tx->width = 16;
-                       tx->height = 16;
-                       tx->skin.base = r_texture_notexture;
-               }
 
-               tx->basematerialflags = 0;
-               if (tx->name[0] == '*')
-               {
-                       // turb does not block movement
-                       tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
-                       // LordHavoc: some turbulent textures should be fullbright and solid
-                       if (!strncmp(tx->name,"*lava",5)
-                        || !strncmp(tx->name,"*teleport",9)
-                        || !strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
-                               tx->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
-                       else
-                               tx->basematerialflags |= MATERIALFLAG_WATERALPHA;
-                       if (!strncmp(tx->name, "*lava", 5))
-                               tx->supercontents = SUPERCONTENTS_LAVA;
-                       else if (!strncmp(tx->name, "*slime", 6))
-                               tx->supercontents = SUPERCONTENTS_SLIME;
+                       tx->basematerialflags = 0;
+                       if (tx->name[0] == '*')
+                       {
+                               // LordHavoc: some turbulent textures should not be affected by wateralpha
+                               if (strncmp(tx->name,"*lava",5)
+                                && strncmp(tx->name,"*teleport",9)
+                                && strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
+                                       tx->basematerialflags |= MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
+                               tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
+                       }
+                       else if (!strncmp(tx->name, "sky", 3))
+                               tx->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
                        else
-                               tx->supercontents = SUPERCONTENTS_WATER;
-               }
-               else if (tx->name[0] == 's' && tx->name[1] == 'k' && tx->name[2] == 'y')
-               {
-                       tx->supercontents = SUPERCONTENTS_SKY;
-                       tx->basematerialflags |= MATERIALFLAG_SKY;
-               }
-               else
-               {
-                       tx->supercontents = SUPERCONTENTS_SOLID;
-                       tx->basematerialflags |= MATERIALFLAG_WALL;
-               }
-               if (tx->skin.fog)
-                       tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
+                               tx->basematerialflags |= MATERIALFLAG_WALL;
+                       if (tx->skinframes[0] && tx->skinframes[0]->fog)
+                               tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
 
-               // start out with no animation
-               tx->currentframe = tx;
+                       // start out with no animation
+                       tx->currentframe = tx;
+                       tx->currentskinframe = tx->skinframes[0];
+               }
        }
 
        // sequence the animations
@@ -1455,9 +1644,9 @@ static void Mod_Q1BSP_LoadLighting(lump_t *l)
 {
        int i;
        unsigned char *in, *out, *data, d;
-       char litfilename[1024];
+       char litfilename[MAX_QPATH];
+       char dlitfilename[MAX_QPATH];
        fs_offset_t filesize;
-       loadmodel->brushq1.lightdata = NULL;
        if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
        {
                loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
@@ -1474,7 +1663,9 @@ static void Mod_Q1BSP_LoadLighting(lump_t *l)
                // LordHavoc: hope is not lost yet, check for a .lit file to load
                strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
                FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
+               strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
                strlcat (litfilename, ".lit", sizeof (litfilename));
+               strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
                data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
                if (data)
                {
@@ -1487,30 +1678,45 @@ static void Mod_Q1BSP_LoadLighting(lump_t *l)
                                        loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
                                        memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
                                        Mem_Free(data);
+                                       data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
+                                       if (data)
+                                       {
+                                               if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
+                                               {
+                                                       i = LittleLong(((int *)data)[1]);
+                                                       if (i == 1)
+                                                       {
+                                                               Con_DPrintf("loaded %s\n", dlitfilename);
+                                                               loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
+                                                               memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
+                                                               loadmodel->brushq3.deluxemapping_modelspace = false;
+                                                               loadmodel->brushq3.deluxemapping = true;
+                                                       }
+                                               }
+                                               Mem_Free(data);
+                                               data = NULL;
+                                       }
                                        return;
                                }
                                else
-                               {
                                        Con_Printf("Unknown .lit file version (%d)\n", i);
-                                       Mem_Free(data);
-                               }
                        }
+                       else if (filesize == 8)
+                               Con_Print("Empty .lit file, ignoring\n");
                        else
+                               Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", (int) filesize, (int) (8 + l->filelen * 3));
+                       if (data)
                        {
-                               if (filesize == 8)
-                                       Con_Print("Empty .lit file, ignoring\n");
-                               else
-                                       Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", filesize, 8 + l->filelen * 3);
                                Mem_Free(data);
+                               data = NULL;
                        }
                }
                // LordHavoc: oh well, expand the white lighting data
                if (!l->filelen)
                        return;
                loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen*3);
-               in = loadmodel->brushq1.lightdata + l->filelen*2; // place the file at the end, so it will not be overwritten until the very last write
+               in = mod_base + l->fileofs;
                out = loadmodel->brushq1.lightdata;
-               memcpy(in, mod_base + l->fileofs, l->filelen);
                for (i = 0;i < l->filelen;i++)
                {
                        d = *in++;
@@ -1521,68 +1727,6 @@ static void Mod_Q1BSP_LoadLighting(lump_t *l)
        }
 }
 
-static void Mod_Q1BSP_LoadLightList(void)
-{
-       int a, n, numlights;
-       char tempchar, *s, *t, *lightsstring, lightsfilename[1024];
-       mlight_t *e;
-
-       strlcpy (lightsfilename, loadmodel->name, sizeof (lightsfilename));
-       FS_StripExtension (lightsfilename, lightsfilename, sizeof(lightsfilename));
-       strlcat (lightsfilename, ".lights", sizeof (lightsfilename));
-       s = lightsstring = (char *) FS_LoadFile(lightsfilename, tempmempool, false, NULL);
-       if (s)
-       {
-               numlights = 0;
-               while (*s)
-               {
-                       while (*s && *s != '\n' && *s != '\r')
-                               s++;
-                       if (!*s)
-                       {
-                               Mem_Free(lightsstring);
-                               Con_Printf("lights file must end with a newline\n");
-                               return;
-                       }
-                       s++;
-                       numlights++;
-               }
-               loadmodel->brushq1.lights = (mlight_t *)Mem_Alloc(loadmodel->mempool, numlights * sizeof(mlight_t));
-               s = lightsstring;
-               n = 0;
-               while (*s && n < numlights)
-               {
-                       t = s;
-                       while (*s && *s != '\n' && *s != '\r')
-                               s++;
-                       if (!*s)
-                       {
-                               Con_Printf("misparsed lights file!\n");
-                               break;
-                       }
-                       e = loadmodel->brushq1.lights + n;
-                       tempchar = *s;
-                       *s = 0;
-                       a = sscanf(t, "%f %f %f %f %f %f %f %f %f %f %f %f %f %d", &e->origin[0], &e->origin[1], &e->origin[2], &e->falloff, &e->light[0], &e->light[1], &e->light[2], &e->subtract, &e->spotdir[0], &e->spotdir[1], &e->spotdir[2], &e->spotcone, &e->distbias, &e->style);
-                       *s = tempchar;
-                       if (a != 14)
-                       {
-                               Con_Printf("invalid lights file, found %d parameters on line %i, should be 14 parameters (origin[0] origin[1] origin[2] falloff light[0] light[1] light[2] subtract spotdir[0] spotdir[1] spotdir[2] spotcone distancebias style)\n", a, n + 1);
-                               break;
-                       }
-                       if (*s == '\r')
-                               s++;
-                       if (*s == '\n')
-                               s++;
-                       n++;
-               }
-               if (*s)
-                       Con_Printf("misparsed lights file!\n");
-               loadmodel->brushq1.numlights = numlights;
-               Mem_Free(lightsstring);
-       }
-}
-
 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
 {
        loadmodel->brushq1.num_compressedpvs = 0;
@@ -1602,23 +1746,23 @@ static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
        int i, j, k;
        if (!data)
                return;
-       if (!COM_ParseToken(&data, false))
+       if (!COM_ParseTokenConsole(&data))
                return; // error
        if (com_token[0] != '{')
                return; // error
        while (1)
        {
-               if (!COM_ParseToken(&data, false))
+               if (!COM_ParseTokenConsole(&data))
                        return; // error
                if (com_token[0] == '}')
                        break; // end of worldspawn
                if (com_token[0] == '_')
-                       strcpy(key, com_token + 1);
+                       strlcpy(key, com_token + 1, sizeof(key));
                else
-                       strcpy(key, com_token);
+                       strlcpy(key, com_token, sizeof(key));
                while (key[strlen(key)-1] == ' ') // remove trailing spaces
                        key[strlen(key)-1] = 0;
-               if (!COM_ParseToken(&data, false))
+               if (!COM_ParseTokenConsole(&data))
                        return; // error
                dpsnprintf(value, sizeof(value), "%s", com_token);
                if (!strcmp("wad", key)) // for HalfLife maps
@@ -1640,8 +1784,8 @@ static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
                                                {
                                                        k = value[i];
                                                        value[i] = 0;
-                                                       strcpy(wadname, "textures/");
-                                                       strcat(wadname, &value[j]);
+                                                       strlcpy(wadname, "textures/", sizeof(wadname));
+                                                       strlcat(wadname, &value[j], sizeof(wadname));
                                                        W_LoadTextureWadFile(wadname, false);
                                                        j = i+1;
                                                        if (!k)
@@ -1768,6 +1912,12 @@ static void Mod_Q1BSP_LoadEdges(lump_t *l)
        {
                out->v[0] = (unsigned short)LittleShort(in->v[0]);
                out->v[1] = (unsigned short)LittleShort(in->v[1]);
+               if (out->v[0] >= loadmodel->brushq1.numvertexes || out->v[1] >= loadmodel->brushq1.numvertexes)
+               {
+                       Con_Printf("Mod_Q1BSP_LoadEdges: %s has invalid vertex indices in edge %i (vertices %i %i >= numvertices %i)\n", loadmodel->name, i, out->v[0], out->v[1], loadmodel->brushq1.numvertexes);
+                       out->v[0] = 0;
+                       out->v[1] = 0;
+               }
        }
 }
 
@@ -1947,7 +2097,7 @@ static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
 
        subdivpolytriangles = 0;
        subdivpolyverts = 0;
-       SubdividePolygon(surface->num_vertices, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex));
+       SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
        if (subdivpolytriangles < 1)
                Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
 
@@ -1971,12 +2121,46 @@ static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
 }
 #endif
 
+static qboolean Mod_Q1BSP_AllocLightmapBlock(int *lineused, int totalwidth, int totalheight, int blockwidth, int blockheight, int *outx, int *outy)
+{
+       int y, x2, y2;
+       int bestx = totalwidth, besty = 0;
+       // find the left-most space we can find
+       for (y = 0;y <= totalheight - blockheight;y++)
+       {
+               x2 = 0;
+               for (y2 = 0;y2 < blockheight;y2++)
+                       x2 = max(x2, lineused[y+y2]);
+               if (bestx > x2)
+               {
+                       bestx = x2;
+                       besty = y;
+               }
+       }
+       // if the best was not good enough, return failure
+       if (bestx > totalwidth - blockwidth)
+               return false;
+       // we found a good spot
+       if (outx)
+               *outx = bestx;
+       if (outy)
+               *outy = besty;
+       // now mark the space used
+       for (y2 = 0;y2 < blockheight;y2++)
+               lineused[besty+y2] = bestx + blockwidth;
+       // return success
+       return true;
+}
+
 static void Mod_Q1BSP_LoadFaces(lump_t *l)
 {
        dface_t *in;
        msurface_t *surface;
-       int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris;
-       float texmins[2], texmaxs[2], val;
+       int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber;
+       float texmins[2], texmaxs[2], val, lightmaptexcoordscale;
+#define LIGHTMAPSIZE 256
+       rtexture_t *lightmaptexture, *deluxemaptexture;
+       int lightmap_lineused[LIGHTMAPSIZE];
 
        in = (dface_t *)(mod_base + l->fileofs);
        if (l->filelen % sizeof(*in))
@@ -1996,11 +2180,12 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
                totaltris += numedges - 2;
        }
 
-       // TODO: split up into multiple meshes as needed to avoid exceeding 65536
-       // vertex limit
-       loadmodel->nummeshes = 1;
-       loadmodel->meshlist = (surfmesh_t **)Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t *));
-       loadmodel->meshlist[0] = Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
+       Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
+
+       lightmaptexture = NULL;
+       deluxemaptexture = r_texture_blanknormalmap;
+       lightmapnumber = 1;
+       lightmaptexcoordscale = 1.0f / (float)LIGHTMAPSIZE;
 
        totalverts = 0;
        totaltris = 0;
@@ -2028,7 +2213,6 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
                //      surface->flags |= SURF_PLANEBACK;
                //surface->plane = loadmodel->brush.data_planes + planenum;
 
-               surface->groupmesh = loadmodel->meshlist[0];
                surface->num_firstvertex = totalverts;
                surface->num_vertices = numedges;
                surface->num_firsttriangle = totaltris;
@@ -2042,37 +2226,38 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
                        int lindex = loadmodel->brushq1.surfedges[firstedge + i];
                        float s, t;
                        if (lindex > 0)
-                               VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
+                               VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
                        else
-                               VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
-                       s = DotProduct(((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
-                       t = DotProduct(((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
-                       (surface->groupmesh->data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
-                       (surface->groupmesh->data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
-                       (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
-                       (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
-                       (surface->groupmesh->data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
+                               VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
+                       s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
+                       t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
+                       (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
+                       (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
+                       (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
+                       (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
+                       (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
                }
 
                for (i = 0;i < surface->num_triangles;i++)
                {
-                       (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
-                       (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
-                       (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
+                       (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
+                       (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
+                       (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
                }
 
                // compile additional data about the surface geometry
-               Mod_BuildTextureVectorsAndNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, surface->groupmesh->data_vertex3f, surface->groupmesh->data_texcoordtexture2f, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle), surface->groupmesh->data_svector3f, surface->groupmesh->data_tvector3f, surface->groupmesh->data_normal3f, true);
-               BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex));
+               Mod_BuildNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, loadmodel->surfmesh.data_vertex3f, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle), loadmodel->surfmesh.data_normal3f, true);
+               Mod_BuildTextureVectorsFromNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle), loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
+               BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
 
                // generate surface extents information
-               texmins[0] = texmaxs[0] = DotProduct((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
-               texmins[1] = texmaxs[1] = DotProduct((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
+               texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
+               texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
                for (i = 1;i < surface->num_vertices;i++)
                {
                        for (j = 0;j < 2;j++)
                        {
-                               val = DotProduct((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
+                               val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
                                texmins[j] = min(texmins[j], val);
                                texmaxs[j] = max(texmaxs[j], val);
                        }
@@ -2091,10 +2276,8 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
                // lighting info
                for (i = 0;i < MAXLIGHTMAPS;i++)
                        surface->lightmapinfo->styles[i] = in->styles[i];
-               // force lightmap upload on first time seeing the surface
-               surface->cached_dlight = true;
-               surface->lightmapinfo->lightmaptexturestride = 0;
                surface->lightmaptexture = NULL;
+               surface->deluxemaptexture = r_texture_blanknormalmap;
                i = LittleLong(in->lightofs);
                if (i == -1)
                {
@@ -2110,44 +2293,62 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
                else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
                        surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + i;
                else // LordHavoc: white lighting (bsp version 29)
+               {
                        surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (i * 3);
+                       if (loadmodel->brushq1.nmaplightdata)
+                               surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (i * 3);
+               }
 
+               // check if we should apply a lightmap to this
                if (!(surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
                {
-                       int i, iu, iv;
+                       int i, iu, iv, lightmapx, lightmapy;
                        float u, v, ubase, vbase, uscale, vscale;
 
                        if (ssize > 256 || tsize > 256)
                                Host_Error("Bad surface extents");
+                       // force lightmap upload on first time seeing the surface
+                       surface->cached_dlight = true;
                        // stainmap for permanent marks on walls
                        surface->lightmapinfo->stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
                        // clear to white
                        memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
 
-                       if (r_miplightmaps.integer)
-                       {
-                               surface->lightmapinfo->lightmaptexturestride = ssize;
-                               surface->lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, NULL, surface->lightmapinfo->lightmaptexturestride, tsize, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_MIPMAP | TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
-                       }
-                       else
+                       // find a place for this lightmap
+                       if (!lightmaptexture || !Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy))
                        {
-                               surface->lightmapinfo->lightmaptexturestride = R_CompatibleFragmentWidth(ssize, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, 0);
-                               surface->lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, NULL, surface->lightmapinfo->lightmaptexturestride, tsize, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FRAGMENT | TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
+                               // allocate a texture pool if we need it
+                               if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
+                                       loadmodel->texturepool = R_AllocTexturePool();
+                               // could not find room, make a new lightmap
+                               lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
+                               if (loadmodel->brushq1.nmaplightdata)
+                                       deluxemaptexture = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
+                               lightmapnumber++;
+                               memset(lightmap_lineused, 0, sizeof(lightmap_lineused));
+                               Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy);
                        }
-                       R_FragmentLocation(surface->lightmaptexture, NULL, NULL, &ubase, &vbase, &uscale, &vscale);
-                       uscale = (uscale - ubase) / ssize;
-                       vscale = (vscale - vbase) / tsize;
+
+                       surface->lightmaptexture = lightmaptexture;
+                       surface->deluxemaptexture = deluxemaptexture;
+                       surface->lightmapinfo->lightmaporigin[0] = lightmapx;
+                       surface->lightmapinfo->lightmaporigin[1] = lightmapy;
+
+                       ubase = lightmapx * lightmaptexcoordscale;
+                       vbase = lightmapy * lightmaptexcoordscale;
+                       uscale = lightmaptexcoordscale;
+                       vscale = lightmaptexcoordscale;
 
                        for (i = 0;i < surface->num_vertices;i++)
                        {
-                               u = ((DotProduct(((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3]) + 8 - surface->lightmapinfo->texturemins[0]) * (1.0 / 16.0);
-                               v = ((DotProduct(((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3]) + 8 - surface->lightmapinfo->texturemins[1]) * (1.0 / 16.0);
-                               (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
-                               (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
+                               u = ((DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3]) + 8 - surface->lightmapinfo->texturemins[0]) * (1.0 / 16.0);
+                               v = ((DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3]) + 8 - surface->lightmapinfo->texturemins[1]) * (1.0 / 16.0);
+                               (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
+                               (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
                                // LordHavoc: calc lightmap data offset for vertex lighting to use
                                iu = (int) u;
                                iv = (int) v;
-                               (surface->groupmesh->data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
+                               (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
                        }
                }
        }
@@ -2160,8 +2361,33 @@ static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *paren
        node->parent = parent;
        if (node->plane)
        {
+               // this is a node, recurse to children
                Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
                Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
+               // combine supercontents of children
+               node->combinedsupercontents = node->children[0]->combinedsupercontents | node->children[1]->combinedsupercontents;
+       }
+       else
+       {
+               int j;
+               mleaf_t *leaf = (mleaf_t *)node;
+               // if this is a leaf, calculate supercontents mask from all collidable
+               // primitives in the leaf (brushes and collision surfaces)
+               // also flag if the leaf contains any collision surfaces
+               leaf->combinedsupercontents = 0;
+               // combine the supercontents values of all brushes in this leaf
+               for (j = 0;j < leaf->numleafbrushes;j++)
+                       leaf->combinedsupercontents |= loadmodel->brush.data_brushes[leaf->firstleafbrush[j]].texture->supercontents;
+               // check if this leaf contains any collision surfaces (q3 patches)
+               for (j = 0;j < leaf->numleafsurfaces;j++)
+               {
+                       msurface_t *surface = loadmodel->data_surfaces + leaf->firstleafsurface[j];
+                       if (surface->num_collisiontriangles)
+                       {
+                               leaf->containscollisionsurfaces = true;
+                               leaf->combinedsupercontents |= surface->texture->supercontents;
+                       }
+               }
        }
 }
 
@@ -2243,7 +2469,7 @@ static void Mod_Q1BSP_LoadLeafs(lump_t *l)
                out->numleafsurfaces = LittleShort(in->nummarksurfaces);
                if (out->firstleafsurface < 0 || LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
                {
-                       Con_Printf("Mod_Q1BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", out->firstleafsurface, out->firstleafsurface + out->numleafsurfaces, 0, loadmodel->brush.num_leafsurfaces);
+                       Con_Printf("Mod_Q1BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", (int)(out->firstleafsurface - loadmodel->brush.data_leafsurfaces), (int)(out->firstleafsurface + out->numleafsurfaces - loadmodel->brush.data_leafsurfaces), 0, loadmodel->brush.num_leafsurfaces);
                        out->firstleafsurface = NULL;
                        out->numleafsurfaces = 0;
                }
@@ -2269,6 +2495,26 @@ static void Mod_Q1BSP_LoadLeafs(lump_t *l)
        }
 }
 
+qboolean Mod_Q1BSP_CheckWaterAlphaSupport(void)
+{
+       int i, j;
+       mleaf_t *leaf;
+       const unsigned char *pvs;
+       // check all liquid leafs to see if they can see into empty leafs, if any
+       // can we can assume this map supports r_wateralpha
+       for (i = 0, leaf = loadmodel->brush.data_leafs;i < loadmodel->brush.num_leafs;i++, leaf++)
+       {
+               if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && (leaf->clusterindex >= 0 && loadmodel->brush.data_pvsclusters))
+               {
+                       pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
+                       for (j = 0;j < loadmodel->brush.num_leafs;j++)
+                               if (CHECKPVSBIT(pvs, loadmodel->brush.data_leafs[j].clusterindex) && loadmodel->brush.data_leafs[j].contents == CONTENTS_EMPTY)
+                                       return true;
+               }
+       }
+       return false;
+}
+
 static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
 {
        dclipnode_t *in, *out;
@@ -2305,6 +2551,8 @@ static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
                out->planenum = LittleLong(in->planenum);
                out->children[0] = LittleShort(in->children[0]);
                out->children[1] = LittleShort(in->children[1]);
+               if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
+                       Host_Error("Corrupt clipping hull(out of range planenum)");
                if (out->children[0] >= count || out->children[1] >= count)
                        Host_Error("Corrupt clipping hull(out of range child)");
        }
@@ -2410,12 +2658,12 @@ static void Mod_Q1BSP_LoadMapBrushes(void)
        if (!maptext)
                return;
        text = maptext;
-       if (!COM_ParseToken(&data, false))
+       if (!COM_ParseTokenConsole(&data))
                return; // error
        submodel = 0;
        for (;;)
        {
-               if (!COM_ParseToken(&data, false))
+               if (!COM_ParseTokenConsole(&data))
                        break;
                if (com_token[0] != '{')
                        return; // error
@@ -2426,7 +2674,7 @@ static void Mod_Q1BSP_LoadMapBrushes(void)
                brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
                for (;;)
                {
-                       if (!COM_ParseToken(&data, false))
+                       if (!COM_ParseTokenConsole(&data))
                                return; // error
                        if (com_token[0] == '}')
                                break; // end of entity
@@ -2450,7 +2698,7 @@ static void Mod_Q1BSP_LoadMapBrushes(void)
                                }
                                for (;;)
                                {
-                                       if (!COM_ParseToken(&data, false))
+                                       if (!COM_ParseTokenConsole(&data))
                                                return; // error
                                        if (com_token[0] == '}')
                                                break; // end of brush
@@ -2459,25 +2707,25 @@ static void Mod_Q1BSP_LoadMapBrushes(void)
                                        // FIXME: support hl .map format
                                        for (pointnum = 0;pointnum < 3;pointnum++)
                                        {
-                                               COM_ParseToken(&data, false);
+                                               COM_ParseTokenConsole(&data);
                                                for (componentnum = 0;componentnum < 3;componentnum++)
                                                {
-                                                       COM_ParseToken(&data, false);
+                                                       COM_ParseTokenConsole(&data);
                                                        point[pointnum][componentnum] = atof(com_token);
                                                }
-                                               COM_ParseToken(&data, false);
+                                               COM_ParseTokenConsole(&data);
                                        }
-                                       COM_ParseToken(&data, false);
+                                       COM_ParseTokenConsole(&data);
                                        strlcpy(facetexture, com_token, sizeof(facetexture));
-                                       COM_ParseToken(&data, false);
+                                       COM_ParseTokenConsole(&data);
                                        //scroll_s = atof(com_token);
-                                       COM_ParseToken(&data, false);
+                                       COM_ParseTokenConsole(&data);
                                        //scroll_t = atof(com_token);
-                                       COM_ParseToken(&data, false);
+                                       COM_ParseTokenConsole(&data);
                                        //rotate = atof(com_token);
-                                       COM_ParseToken(&data, false);
+                                       COM_ParseTokenConsole(&data);
                                        //scale_s = atof(com_token);
-                                       COM_ParseToken(&data, false);
+                                       COM_ParseTokenConsole(&data);
                                        //scale_t = atof(com_token);
                                        TriangleNormal(point[0], point[1], point[2], planenormal);
                                        VectorNormalizeDouble(planenormal);
@@ -2739,6 +2987,7 @@ static void RemovePortalFromNodes(portal_t *portal)
        }
 }
 
+#define PORTAL_DIST_EPSILON (1.0 / 32.0)
 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
 {
        int i, side;
@@ -2764,6 +3013,7 @@ static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
        nodeportal = AllocPortal();
        nodeportal->plane = *plane;
 
+       // TODO: calculate node bounding boxes during recursion and calculate a maximum plane size accordingly to improve precision (as most maps do not need 1 billion unit plane polygons)
        PolygonD_QuadForPlane(nodeportal->points, nodeportal->plane.normal[0], nodeportal->plane.normal[1], nodeportal->plane.normal[2], nodeportal->plane.dist, 1024.0*1024.0*1024.0);
        nodeportal->numpoints = 4;
        side = 0;       // shut up compiler warning
@@ -2785,7 +3035,7 @@ static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
 
                for (i = 0;i < nodeportal->numpoints*3;i++)
                        frontpoints[i] = nodeportal->points[i];
-               PolygonD_Divide(nodeportal->numpoints, frontpoints, clipplane.normal[0], clipplane.normal[1], clipplane.normal[2], clipplane.dist, 1.0/32.0, MAX_PORTALPOINTS, nodeportal->points, &nodeportal->numpoints, 0, NULL, NULL);
+               PolygonD_Divide(nodeportal->numpoints, frontpoints, clipplane.normal[0], clipplane.normal[1], clipplane.normal[2], clipplane.dist, PORTAL_DIST_EPSILON, MAX_PORTALPOINTS, nodeportal->points, &nodeportal->numpoints, 0, NULL, NULL, NULL);
                if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
                        break;
        }
@@ -2823,7 +3073,7 @@ static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
                RemovePortalFromNodes(portal);
 
                // cut the portal into two portals, one on each side of the node plane
-               PolygonD_Divide(portal->numpoints, portal->points, plane->normal[0], plane->normal[1], plane->normal[2], plane->dist, 1.0/32.0, MAX_PORTALPOINTS, frontpoints, &numfrontpoints, MAX_PORTALPOINTS, backpoints, &numbackpoints);
+               PolygonD_Divide(portal->numpoints, portal->points, plane->normal[0], plane->normal[1], plane->normal[2], plane->dist, PORTAL_DIST_EPSILON, MAX_PORTALPOINTS, frontpoints, &numfrontpoints, MAX_PORTALPOINTS, backpoints, &numbackpoints, NULL);
 
                if (!numfrontpoints)
                {
@@ -3127,6 +3377,7 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
 
        mod->soundfromcenter = true;
        mod->TraceBox = Mod_Q1BSP_TraceBox;
+       mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
        mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
        mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
        mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
@@ -3152,6 +3403,18 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
        // store which lightmap format to use
        mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
 
+       mod->brush.qw_md4sum = 0;
+       mod->brush.qw_md4sum2 = 0;
+       for (i = 0;i < HEADER_LUMPS;i++)
+       {
+               if (i == LUMP_ENTITIES)
+                       continue;
+               mod->brush.qw_md4sum ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
+               if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
+                       continue;
+               mod->brush.qw_md4sum2 ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
+       }
+
        Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
        Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
        Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
@@ -3169,8 +3432,8 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
        Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
        Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES], &hullinfo);
 
-       if (!mod->brushq1.lightdata)
-               mod->brush.LightPoint = NULL;
+       // check if the map supports transparent water rendering
+       loadmodel->brush.supportwateralpha = Mod_Q1BSP_CheckWaterAlphaSupport();
 
        if (mod->brushq1.data_compressedpvs)
                Mem_Free(mod->brushq1.data_compressedpvs);
@@ -3185,8 +3448,6 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
 
        mainmempool = mod->mempool;
 
-       Mod_Q1BSP_LoadLightList();
-
        // make a single combined shadow mesh to allow optimized shadow volume creation
        numshadowmeshtriangles = 0;
        for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
@@ -3196,8 +3457,8 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
        }
        loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
        for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
-               Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, surface->groupmesh->data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
-       loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
+               Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, loadmodel->surfmesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
+       loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true, false);
        Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
 
        if (loadmodel->brush.numsubmodels)
@@ -3244,7 +3505,7 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
                        // copy the base model to this one
                        *mod = *loadmodel;
                        // rename the clone back to its proper name
-                       strcpy(mod->name, name);
+                       strlcpy(mod->name, name, sizeof(mod->name));
                        // textures and memory belong to the main model
                        mod->texturepool = NULL;
                        mod->mempool = NULL;
@@ -3281,6 +3542,7 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
                mod->DrawLight = R_Q1BSP_DrawLight;
                if (i != 0)
                {
+                       mod->brush.TraceLineOfSight = NULL;
                        mod->brush.GetPVS = NULL;
                        mod->brush.FatPVS = NULL;
                        mod->brush.BoxTouchingPVS = NULL;
@@ -3304,7 +3566,7 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
                                if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
                                        mod->DrawSky = R_Q1BSP_DrawSky;
                                // calculate bounding shapes
-                               for (k = 0, vec = (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
+                               for (k = 0, vec = (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
                                {
                                        if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
                                        if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
@@ -3342,7 +3604,7 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
 
        //Mod_Q1BSP_ProcessLightList();
 
-       if (developer.integer)
+       if (developer.integer >= 10)
                Con_Printf("Some stats for q1bsp model \"%s\": %i faces, %i nodes, %i leafs, %i visleafs, %i visleafportals\n", loadmodel->name, loadmodel->num_surfaces, loadmodel->brush.num_nodes, loadmodel->brush.num_leafs, mod->brush.num_pvsclusters, loadmodel->brush.num_portals);
 }
 
@@ -3755,6 +4017,18 @@ void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
        // store which lightmap format to use
        mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
 
+       mod->brush.qw_md4sum = 0;
+       mod->brush.qw_md4sum2 = 0;
+       for (i = 0;i < Q2HEADER_LUMPS;i++)
+       {
+               if (i == Q2LUMP_ENTITIES)
+                       continue;
+               mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
+               if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
+                       continue;
+               mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
+       }
+
        Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
        Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
        Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
@@ -3793,23 +4067,23 @@ static void Mod_Q3BSP_LoadEntities(lump_t *l)
        memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
        data = loadmodel->brush.entities;
        // some Q3 maps override the lightgrid_cellsize with a worldspawn key
-       if (data && COM_ParseToken(&data, false) && com_token[0] == '{')
+       if (data && COM_ParseTokenConsole(&data) && com_token[0] == '{')
        {
                while (1)
                {
-                       if (!COM_ParseToken(&data, false))
+                       if (!COM_ParseTokenConsole(&data))
                                break; // error
                        if (com_token[0] == '}')
                                break; // end of worldspawn
                        if (com_token[0] == '_')
-                               strcpy(key, com_token + 1);
+                               strlcpy(key, com_token + 1, sizeof(key));
                        else
-                               strcpy(key, com_token);
+                               strlcpy(key, com_token, sizeof(key));
                        while (key[strlen(key)-1] == ' ') // remove trailing spaces
                                key[strlen(key)-1] = 0;
-                       if (!COM_ParseToken(&data, false))
+                       if (!COM_ParseTokenConsole(&data))
                                break; // error
-                       strcpy(value, com_token);
+                       strlcpy(value, com_token, sizeof(value));
                        if (!strcmp("gridsize", key))
                        {
                                if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
@@ -3819,282 +4093,508 @@ static void Mod_Q3BSP_LoadEntities(lump_t *l)
        }
 }
 
-static void Mod_Q3BSP_LoadTextures(lump_t *l)
-{
-       q3dtexture_t *in;
-       texture_t *out;
-       int i, count;
-       int j, c;
-       fssearch_t *search;
-       char *f;
-       const char *text;
-       int flags, flags2, numparameters, passnumber;
-       char shadername[Q3PATHLENGTH];
-       char sky[Q3PATHLENGTH];
-       char firstpasstexturename[Q3PATHLENGTH];
-       char parameter[4][Q3PATHLENGTH];
+// FIXME: make MAXSHADERS dynamic
+#define Q3SHADER_MAXSHADERS 4096
+#define Q3SHADER_MAXLAYERS 8
 
-       in = (q3dtexture_t *)(mod_base + l->fileofs);
-       if (l->filelen % sizeof(*in))
-               Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
-       count = l->filelen / sizeof(*in);
-       out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
+typedef struct q3shaderinfo_layer_s
+{
+       int alphatest;
+       int clampmap;
+       float framerate;
+       int numframes;
+       char texturename[TEXTURE_MAXFRAMES][Q3PATHLENGTH];
+       int blendfunc[2];
+       qboolean rgbgenvertex;
+       qboolean alphagenvertex;
+}
+q3shaderinfo_layer_t;
 
-       loadmodel->data_textures = out;
-       loadmodel->num_textures = count;
+typedef struct q3shaderinfo_s
+{
+       char name[Q3PATHLENGTH];
+       int surfaceparms;
+       int textureflags;
+       int numlayers;
+       qboolean lighting;
+       qboolean vertexalpha;
+       qboolean textureblendalpha;
+       q3shaderinfo_layer_t *primarylayer, *backgroundlayer;
+       q3shaderinfo_layer_t layers[Q3SHADER_MAXLAYERS];
+       char skyboxname[Q3PATHLENGTH];
+}
+q3shaderinfo_t;
 
-       for (i = 0;i < count;i++, in++, out++)
-       {
-               strlcpy (out->name, in->name, sizeof (out->name));
-               out->surfaceflags = LittleLong(in->surfaceflags);
-               out->supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in->contents));
-               out->surfaceparms = -1;
-       }
+int q3shaders_numshaders;
+q3shaderinfo_t q3shaders_shaders[Q3SHADER_MAXSHADERS];
 
-       // do a quick parse of shader files to get surfaceparms
-       if ((search = FS_Search("scripts/*.shader", true, false)))
+static void Mod_Q3BSP_LoadShaders(void)
+{
+       int j;
+       int fileindex;
+       fssearch_t *search;
+       char *f;
+       const char *text;
+       q3shaderinfo_t *shader;
+       q3shaderinfo_layer_t *layer;
+       int numparameters;
+       char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
+       search = FS_Search("scripts/*.shader", true, false);
+       if (!search)
+               return;
+       q3shaders_numshaders = 0;
+       for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
        {
-               for (i = 0;i < search->numfilenames;i++)
+               text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
+               if (!f)
+                       continue;
+               while (COM_ParseToken(&text, false))
                {
-                       if ((f = (char *)FS_LoadFile(search->filenames[i], tempmempool, false, NULL)))
+                       if (q3shaders_numshaders >= Q3SHADER_MAXSHADERS)
+                       {
+                               Con_Printf("Mod_Q3BSP_LoadShaders: too many shaders!\n");
+                               break;
+                       }
+                       shader = q3shaders_shaders + q3shaders_numshaders++;
+                       memset(shader, 0, sizeof(*shader));
+                       strlcpy(shader->name, com_token, sizeof(shader->name));
+                       if (!COM_ParseToken(&text, false) || strcasecmp(com_token, "{"))
                        {
-                               text = f;
-                               while (COM_ParseToken(&text, false))
+                               Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
+                               break;
+                       }
+                       while (COM_ParseToken(&text, false))
+                       {
+                               if (!strcasecmp(com_token, "}"))
+                                       break;
+                               if (!strcasecmp(com_token, "{"))
                                {
-                                       strlcpy (shadername, com_token, sizeof (shadername));
-                                       flags = 0;
-                                       flags2 = 0;
-                                       sky[0] = 0;
-                                       passnumber = 0;
-                                       firstpasstexturename[0] = 0;
-                                       if (COM_ParseToken(&text, false) && !strcasecmp(com_token, "{"))
+                                       if (shader->numlayers < Q3SHADER_MAXLAYERS)
+                                       {
+                                               layer = shader->layers + shader->numlayers++;
+                                               layer->rgbgenvertex = false;
+                                               layer->alphagenvertex = false;
+                                               layer->blendfunc[0] = GL_ONE;
+                                               layer->blendfunc[1] = GL_ZERO;
+                                       }
+                                       else
+                                               layer = NULL;
+                                       while (COM_ParseToken(&text, false))
                                        {
-                                               while (COM_ParseToken(&text, false))
+                                               if (!strcasecmp(com_token, "}"))
+                                                       break;
+                                               if (!strcasecmp(com_token, "\n"))
+                                                       continue;
+                                               if (layer == NULL)
+                                                       continue;
+                                               numparameters = 0;
+                                               for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
                                                {
-                                                       if (!strcasecmp(com_token, "}"))
-                                                               break;
-                                                       else if (!strcasecmp(com_token, "{"))
-                                                       {
-                                                               while (COM_ParseToken(&text, false))
-                                                               {
-                                                                       if (!strcasecmp(com_token, "}"))
-                                                                               break;
-                                                                       if (!strcasecmp(com_token, "\n"))
-                                                                               continue;
-                                                                       numparameters = 0;
-                                                                       for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
-                                                                       {
-                                                                               if (j < 4)
-                                                                               {
-                                                                                       strlcpy(parameter[j], com_token, sizeof(parameter[j]));
-                                                                                       numparameters = j + 1;
-                                                                               }
-                                                                               if (!COM_ParseToken(&text, true))
-                                                                                       break;
-                                                                       }
-                                                                       if (developer.integer >= 2)
-                                                                       {
-                                                                               Con_Printf("%s %i: ", shadername, passnumber);
-                                                                               for (j = 0;j < numparameters;j++)
-                                                                                       Con_Printf(" %s", parameter[j]);
-                                                                               Con_Print("\n");
-                                                                       }
-                                                                       if (passnumber == 0 && numparameters >= 1)
-                                                                       {
-                                                                               if (!strcasecmp(parameter[0], "blendfunc") && (flags & Q3SURFACEPARM_TRANS))
-                                                                               {
-                                                                                       if (numparameters == 2 && !strcasecmp(parameter[1], "add"))
-                                                                                               flags2 |= Q3TEXTUREFLAG_ADDITIVE;
-                                                                                       else if (numparameters == 3 && !strcasecmp(parameter[1], "gl_one") && !strcasecmp(parameter[2], "gl_one"))
-                                                                                               flags2 |= Q3TEXTUREFLAG_ADDITIVE;
-                                                                                       else if (numparameters == 3 && !strcasecmp(parameter[1], "gl_src_alpha") && !strcasecmp(parameter[2], "gl_one"))
-                                                                                               flags2 |= Q3TEXTUREFLAG_ADDITIVE;
-                                                                               }
-                                                                               else if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
-                                                                                       strlcpy(firstpasstexturename, parameter[1], sizeof(firstpasstexturename));
-                                                                               else if (numparameters >= 3 && !strcasecmp(parameter[0], "animmap"))
-                                                                                       strlcpy(firstpasstexturename, parameter[2], sizeof(firstpasstexturename));
-                                                                               else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
-                                                                                       flags2 |= Q3TEXTUREFLAG_ALPHATEST;
-                                                                       }
-                                                                       // break out a level if it was }
-                                                                       if (!strcasecmp(com_token, "}"))
-                                                                               break;
-                                                               }
-                                                               passnumber++;
-                                                               continue;
-                                                       }
-                                                       numparameters = 0;
-                                                       for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
+                                                       if (j < TEXTURE_MAXFRAMES + 4)
                                                        {
-                                                               if (j < 4)
-                                                               {
-                                                                       strlcpy(parameter[j], com_token, sizeof(parameter[j]));
-                                                                       numparameters = j + 1;
-                                                               }
-                                                               if (!COM_ParseToken(&text, true))
-                                                                       break;
+                                                               strlcpy(parameter[j], com_token, sizeof(parameter[j]));
+                                                               numparameters = j + 1;
                                                        }
-                                                       if (i == 0 && !strcasecmp(com_token, "}"))
+                                                       if (!COM_ParseToken(&text, true))
                                                                break;
-                                                       if (developer.integer >= 2)
-                                                       {
-                                                               Con_Printf("%s: ", shadername);
-                                                               for (j = 0;j < numparameters;j++)
-                                                                       Con_Printf(" %s", parameter[j]);
-                                                               Con_Print("\n");
-                                                       }
-                                                       if (numparameters < 1)
-                                                               continue;
-                                                       if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
-                                                       {
-                                                               if (!strcasecmp(parameter[1], "alphashadow"))
-                                                                       flags |= Q3SURFACEPARM_ALPHASHADOW;
-                                                               else if (!strcasecmp(parameter[1], "areaportal"))
-                                                                       flags |= Q3SURFACEPARM_AREAPORTAL;
-                                                               else if (!strcasecmp(parameter[1], "clusterportal"))
-                                                                       flags |= Q3SURFACEPARM_CLUSTERPORTAL;
-                                                               else if (!strcasecmp(parameter[1], "detail"))
-                                                                       flags |= Q3SURFACEPARM_DETAIL;
-                                                               else if (!strcasecmp(parameter[1], "donotenter"))
-                                                                       flags |= Q3SURFACEPARM_DONOTENTER;
-                                                               else if (!strcasecmp(parameter[1], "fog"))
-                                                                       flags |= Q3SURFACEPARM_FOG;
-                                                               else if (!strcasecmp(parameter[1], "lava"))
-                                                                       flags |= Q3SURFACEPARM_LAVA;
-                                                               else if (!strcasecmp(parameter[1], "lightfilter"))
-                                                                       flags |= Q3SURFACEPARM_LIGHTFILTER;
-                                                               else if (!strcasecmp(parameter[1], "metalsteps"))
-                                                                       flags |= Q3SURFACEPARM_METALSTEPS;
-                                                               else if (!strcasecmp(parameter[1], "nodamage"))
-                                                                       flags |= Q3SURFACEPARM_NODAMAGE;
-                                                               else if (!strcasecmp(parameter[1], "nodlight"))
-                                                                       flags |= Q3SURFACEPARM_NODLIGHT;
-                                                               else if (!strcasecmp(parameter[1], "nodraw"))
-                                                                       flags |= Q3SURFACEPARM_NODRAW;
-                                                               else if (!strcasecmp(parameter[1], "nodrop"))
-                                                                       flags |= Q3SURFACEPARM_NODROP;
-                                                               else if (!strcasecmp(parameter[1], "noimpact"))
-                                                                       flags |= Q3SURFACEPARM_NOIMPACT;
-                                                               else if (!strcasecmp(parameter[1], "nolightmap"))
-                                                                       flags |= Q3SURFACEPARM_NOLIGHTMAP;
-                                                               else if (!strcasecmp(parameter[1], "nomarks"))
-                                                                       flags |= Q3SURFACEPARM_NOMARKS;
-                                                               else if (!strcasecmp(parameter[1], "nomipmaps"))
-                                                                       flags |= Q3SURFACEPARM_NOMIPMAPS;
-                                                               else if (!strcasecmp(parameter[1], "nonsolid"))
-                                                                       flags |= Q3SURFACEPARM_NONSOLID;
-                                                               else if (!strcasecmp(parameter[1], "origin"))
-                                                                       flags |= Q3SURFACEPARM_ORIGIN;
-                                                               else if (!strcasecmp(parameter[1], "playerclip"))
-                                                                       flags |= Q3SURFACEPARM_PLAYERCLIP;
-                                                               else if (!strcasecmp(parameter[1], "sky"))
-                                                                       flags |= Q3SURFACEPARM_SKY;
-                                                               else if (!strcasecmp(parameter[1], "slick"))
-                                                                       flags |= Q3SURFACEPARM_SLICK;
-                                                               else if (!strcasecmp(parameter[1], "slime"))
-                                                                       flags |= Q3SURFACEPARM_SLIME;
-                                                               else if (!strcasecmp(parameter[1], "structural"))
-                                                                       flags |= Q3SURFACEPARM_STRUCTURAL;
-                                                               else if (!strcasecmp(parameter[1], "trans"))
-                                                                       flags |= Q3SURFACEPARM_TRANS;
-                                                               else if (!strcasecmp(parameter[1], "water"))
-                                                                       flags |= Q3SURFACEPARM_WATER;
-                                                               else if (!strcasecmp(parameter[1], "pointlight"))
-                                                                       flags |= Q3SURFACEPARM_POINTLIGHT;
-                                                               else
-                                                                       Con_Printf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[i], parameter[1]);
-                                                       }
-                                                       else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
-                                                               strlcpy(sky, parameter[1], sizeof(sky));
-                                                       else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
-                                                       {
-                                                               if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
-                                                                       strlcpy(sky, parameter[1], sizeof(sky));
-                                                       }
-                                                       else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
-                                                       {
-                                                               if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
-                                                                       flags2 |= Q3TEXTUREFLAG_TWOSIDED;
-                                                       }
-                                                       else if (!strcasecmp(parameter[0], "nomipmaps"))
-                                                               flags2 |= Q3TEXTUREFLAG_NOMIPMAPS;
-                                                       else if (!strcasecmp(parameter[0], "nopicmip"))
-                                                               flags2 |= Q3TEXTUREFLAG_NOPICMIP;
-                                                       else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
-                                                       {
-                                                               if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
-                                                                       flags2 |= Q3TEXTUREFLAG_AUTOSPRITE;
-                                                               if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
-                                                                       flags2 |= Q3TEXTUREFLAG_AUTOSPRITE2;
-                                                       }
                                                }
-                                               // add shader to list (shadername and flags)
-                                               // actually here we just poke into the texture settings
-                                               for (j = 0, out = loadmodel->data_textures;j < loadmodel->num_textures;j++, out++)
+                                               if (developer.integer >= 100)
+                                               {
+                                                       Con_Printf("%s %i: ", shader->name, shader->numlayers - 1);
+                                                       for (j = 0;j < numparameters;j++)
+                                                               Con_Printf(" %s", parameter[j]);
+                                                       Con_Print("\n");
+                                               }
+                                               if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
                                                {
-                                                       if (!strcasecmp(out->name, shadername))
+                                                       if (numparameters == 2)
                                                        {
-                                                               out->surfaceparms = flags;
-                                                               out->textureflags = flags2;
-                                                               out->basematerialflags = 0;
-                                                               if (out->surfaceparms & Q3SURFACEPARM_NODRAW)
-                                                                       out->basematerialflags |= MATERIALFLAG_NODRAW;
-                                                               else if (out->surfaceparms & Q3SURFACEPARM_SKY)
-                                                                       out->basematerialflags |= MATERIALFLAG_SKY;
-                                                               else if (out->surfaceparms & Q3SURFACEPARM_LAVA)
-                                                                       out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_FULLBRIGHT;
-                                                               else if (out->surfaceparms & Q3SURFACEPARM_SLIME)
-                                                                       out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
-                                                               else if (out->surfaceparms & Q3SURFACEPARM_WATER)
-                                                                       out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
-                                                               else
-                                                                       out->basematerialflags |= MATERIALFLAG_WALL;
-                                                               if (out->textureflags & Q3TEXTUREFLAG_ALPHATEST)
+                                                               if (!strcasecmp(parameter[1], "add"))
                                                                {
-                                                                       // FIXME: support alpha test?
-                                                                       out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
+                                                                       layer->blendfunc[0] = GL_ONE;
+                                                                       layer->blendfunc[1] = GL_ONE;
                                                                }
-                                                               else if (out->surfaceparms & Q3SURFACEPARM_TRANS)
+                                                               else if (!strcasecmp(parameter[1], "filter"))
                                                                {
-                                                                       if (out->textureflags & Q3TEXTUREFLAG_ADDITIVE)
-                                                                               out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_TRANSPARENT;
-                                                                       else
-                                                                               out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
+                                                                       layer->blendfunc[0] = GL_DST_COLOR;
+                                                                       layer->blendfunc[1] = GL_ZERO;
+                                                               }
+                                                               else if (!strcasecmp(parameter[1], "blend"))
+                                                               {
+                                                                       layer->blendfunc[0] = GL_SRC_ALPHA;
+                                                                       layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
                                                                }
-                                                               strlcpy(out->firstpasstexturename, firstpasstexturename, sizeof(out->firstpasstexturename));
-                                                               if ((flags & Q3SURFACEPARM_SKY) && sky[0])
+                                                       }
+                                                       else if (numparameters == 3)
+                                                       {
+                                                               int k;
+                                                               for (k = 0;k < 2;k++)
                                                                {
-                                                                       // quake3 seems to append a _ to the skybox name, so this must do so as well
-                                                                       dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", sky);
+                                                                       if (!strcasecmp(parameter[k+1], "GL_ONE"))
+                                                                               layer->blendfunc[k] = GL_ONE;
+                                                                       else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
+                                                                               layer->blendfunc[k] = GL_ZERO;
+                                                                       else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
+                                                                               layer->blendfunc[k] = GL_SRC_COLOR;
+                                                                       else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
+                                                                               layer->blendfunc[k] = GL_SRC_ALPHA;
+                                                                       else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
+                                                                               layer->blendfunc[k] = GL_DST_COLOR;
+                                                                       else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
+                                                                               layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
+                                                                       else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
+                                                                               layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
+                                                                       else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
+                                                                               layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
+                                                                       else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
+                                                                               layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
+                                                                       else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
+                                                                               layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
+                                                                       else
+                                                                               layer->blendfunc[k] = GL_ONE; // default in case of parsing error
                                                                }
                                                        }
                                                }
+                                               if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
+                                                       layer->alphatest = true;
+                                               if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
+                                               {
+                                                       if (!strcasecmp(parameter[0], "clampmap"))
+                                                               layer->clampmap = true;
+                                                       layer->numframes = 1;
+                                                       layer->framerate = 1;
+                                                       strlcpy(layer->texturename[0], parameter[1], sizeof(layer->texturename));
+                                                       if (!strcasecmp(parameter[1], "$lightmap"))
+                                                               shader->lighting = true;
+                                               }
+                                               else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
+                                               {
+                                                       int i;
+                                                       layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
+                                                       layer->framerate = atof(parameter[1]);
+                                                       for (i = 0;i < layer->numframes;i++)
+                                                               strlcpy(layer->texturename[i], parameter[i + 2], sizeof(layer->texturename));
+                                               }
+                                               else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen") && !strcasecmp(parameter[1], "vertex"))
+                                                       layer->rgbgenvertex = true;
+                                               else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen") && !strcasecmp(parameter[1], "vertex"))
+                                                       layer->alphagenvertex = true;
+                                               // break out a level if it was }
+                                               if (!strcasecmp(com_token, "}"))
+                                                       break;
                                        }
-                                       else
+                                       if (layer->rgbgenvertex)
+                                               shader->lighting = true;
+                                       if (layer->alphagenvertex)
                                        {
-                                               Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[i], com_token);
-                                               goto parseerror;
+                                               if (layer == shader->layers + 0)
+                                               {
+                                                       // vertex controlled transparency
+                                                       shader->vertexalpha = true;
+                                               }
+                                               else
+                                               {
+                                                       // multilayer terrain shader or similar
+                                                       shader->textureblendalpha = true;
+                                               }
                                        }
+                                       continue;
                                }
-parseerror:
-                               Mem_Free(f);
-                       }
-               }
-       }
-
-       c = 0;
-       for (j = 0, out = loadmodel->data_textures;j < loadmodel->num_textures;j++, out++)
-       {
-               if (out->surfaceparms == -1)
+                               numparameters = 0;
+                               for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
+                               {
+                                       if (j < TEXTURE_MAXFRAMES + 4)
+                                       {
+                                               strlcpy(parameter[j], com_token, sizeof(parameter[j]));
+                                               numparameters = j + 1;
+                                       }
+                                       if (!COM_ParseToken(&text, true))
+                                               break;
+                               }
+                               if (fileindex == 0 && !strcasecmp(com_token, "}"))
+                                       break;
+                               if (developer.integer >= 100)
+                               {
+                                       Con_Printf("%s: ", shader->name);
+                                       for (j = 0;j < numparameters;j++)
+                                               Con_Printf(" %s", parameter[j]);
+                                       Con_Print("\n");
+                               }
+                               if (numparameters < 1)
+                                       continue;
+                               if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
+                               {
+                                       if (!strcasecmp(parameter[1], "alphashadow"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
+                                       else if (!strcasecmp(parameter[1], "areaportal"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
+                                       else if (!strcasecmp(parameter[1], "botclip"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_BOTCLIP;
+                                       else if (!strcasecmp(parameter[1], "clusterportal"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
+                                       else if (!strcasecmp(parameter[1], "detail"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_DETAIL;
+                                       else if (!strcasecmp(parameter[1], "donotenter"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_DONOTENTER;
+                                       else if (!strcasecmp(parameter[1], "dust"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_DUST;
+                                       else if (!strcasecmp(parameter[1], "hint"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_HINT;
+                                       else if (!strcasecmp(parameter[1], "fog"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_FOG;
+                                       else if (!strcasecmp(parameter[1], "lava"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_LAVA;
+                                       else if (!strcasecmp(parameter[1], "lightfilter"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
+                                       else if (!strcasecmp(parameter[1], "lightgrid"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
+                                       else if (!strcasecmp(parameter[1], "metalsteps"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_METALSTEPS;
+                                       else if (!strcasecmp(parameter[1], "nodamage"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_NODAMAGE;
+                                       else if (!strcasecmp(parameter[1], "nodlight"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_NODLIGHT;
+                                       else if (!strcasecmp(parameter[1], "nodraw"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_NODRAW;
+                                       else if (!strcasecmp(parameter[1], "nodrop"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_NODROP;
+                                       else if (!strcasecmp(parameter[1], "noimpact"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_NOIMPACT;
+                                       else if (!strcasecmp(parameter[1], "nolightmap"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
+                                       else if (!strcasecmp(parameter[1], "nomarks"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_NOMARKS;
+                                       else if (!strcasecmp(parameter[1], "nomipmaps"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
+                                       else if (!strcasecmp(parameter[1], "nonsolid"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_NONSOLID;
+                                       else if (!strcasecmp(parameter[1], "origin"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_ORIGIN;
+                                       else if (!strcasecmp(parameter[1], "playerclip"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
+                                       else if (!strcasecmp(parameter[1], "sky"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_SKY;
+                                       else if (!strcasecmp(parameter[1], "slick"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_SLICK;
+                                       else if (!strcasecmp(parameter[1], "slime"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_SLIME;
+                                       else if (!strcasecmp(parameter[1], "structural"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
+                                       else if (!strcasecmp(parameter[1], "trans"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_TRANS;
+                                       else if (!strcasecmp(parameter[1], "water"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_WATER;
+                                       else if (!strcasecmp(parameter[1], "pointlight"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
+                                       else if (!strcasecmp(parameter[1], "antiportal"))
+                                               shader->surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
+                                       else
+                                               Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
+                               }
+                               else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
+                               {
+                                       // some q3 skies don't have the sky parm set
+                                       shader->surfaceparms |= Q3SURFACEPARM_SKY;
+                                       strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
+                               }
+                               else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
+                               {
+                                       // some q3 skies don't have the sky parm set
+                                       shader->surfaceparms |= Q3SURFACEPARM_SKY;
+                                       if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
+                                               strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
+                               }
+                               else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
+                               {
+                                       if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
+                                               shader->textureflags |= Q3TEXTUREFLAG_TWOSIDED;
+                               }
+                               else if (!strcasecmp(parameter[0], "nomipmaps"))
+                                       shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
+                               else if (!strcasecmp(parameter[0], "nopicmip"))
+                                       shader->textureflags |= Q3TEXTUREFLAG_NOPICMIP;
+                               else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
+                               {
+                                       if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
+                                               shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE;
+                                       if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
+                                               shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE2;
+                               }
+                       }
+                       // identify if this is a blended terrain shader or similar
+                       if (shader->numlayers)
+                       {
+                               shader->backgroundlayer = NULL;
+                               shader->primarylayer = shader->layers + 0;
+                               if ((shader->layers[0].blendfunc[0] == GL_ONE       && shader->layers[0].blendfunc[1] == GL_ZERO                && !shader->layers[0].alphatest)
+                               && ((shader->layers[1].blendfunc[0] == GL_SRC_ALPHA && shader->layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA && !shader->layers[0].alphatest)
+                               ||  (shader->layers[1].blendfunc[0] == GL_ONE       && shader->layers[1].blendfunc[1] == GL_ZERO                &&  shader->layers[1].alphatest)))
+                               {
+                                       // terrain blending or other effects
+                                       shader->backgroundlayer = shader->layers + 0;
+                                       shader->primarylayer = shader->layers + 1;
+                               }
+                               // now see if the lightmap came first, and if so choose the second texture instead
+                               if (!strcasecmp(shader->primarylayer->texturename[0], "$lightmap"))
+                               {
+                                       shader->backgroundlayer = NULL;
+                                       shader->primarylayer = shader->layers + 1;
+                               }
+                       }
+               }
+               Mem_Free(f);
+       }
+}
+
+q3shaderinfo_t *Mod_Q3BSP_LookupShader(const char *name)
+{
+       int i;
+       for (i = 0;i < Q3SHADER_MAXSHADERS;i++)
+               if (!strcasecmp(q3shaders_shaders[i].name, name))
+                       return q3shaders_shaders + i;
+       return NULL;
+}
+
+static void Mod_Q3BSP_LoadTextures(lump_t *l)
+{
+       q3dtexture_t *in;
+       texture_t *out;
+       int i, count, c;
+
+       in = (q3dtexture_t *)(mod_base + l->fileofs);
+       if (l->filelen % sizeof(*in))
+               Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
+       count = l->filelen / sizeof(*in);
+       out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
+
+       loadmodel->data_textures = out;
+       loadmodel->num_textures = count;
+       loadmodel->num_texturesperskin = loadmodel->num_textures;
+
+       for (i = 0;i < count;i++)
+       {
+               strlcpy (out[i].name, in[i].name, sizeof (out[i].name));
+               out[i].surfaceflags = LittleLong(in[i].surfaceflags);
+               out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in[i].contents));
+       }
+
+       if (cls.state == ca_dedicated)
+               return;
+
+       // parse the Q3 shader files
+       Mod_Q3BSP_LoadShaders();
+
+       c = 0;
+       for (i = 0;i < count;i++, in++, out++)
+       {
+               q3shaderinfo_t *shader;
+               shader = Mod_Q3BSP_LookupShader(out->name);
+               if (shader)
+               {
+                       out->surfaceparms = shader->surfaceparms;
+                       out->textureflags = shader->textureflags;
+                       out->basematerialflags = 0;
+                       if (shader->surfaceparms & Q3SURFACEPARM_SKY)
+                       {
+                               out->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
+                               if (shader->skyboxname[0])
+                               {
+                                       // quake3 seems to append a _ to the skybox name, so this must do so as well
+                                       dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
+                               }
+                       }
+                       else if ((out->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
+                               out->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
+                       else if (shader->surfaceparms & Q3SURFACEPARM_LAVA)
+                               out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_NOSHADOW;
+                       else if (shader->surfaceparms & Q3SURFACEPARM_SLIME)
+                               out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
+                       else if (shader->surfaceparms & Q3SURFACEPARM_WATER)
+                               out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
+                       else
+                               out->basematerialflags |= MATERIALFLAG_WALL;
+                       if (shader->layers[0].alphatest)
+                               out->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
+                       if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
+                               out->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
+                       if (shader->textureflags & (Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
+                               out->basematerialflags |= MATERIALFLAG_NOSHADOW;
+                       out->customblendfunc[0] = GL_ONE;
+                       out->customblendfunc[1] = GL_ZERO;
+                       if (shader->numlayers > 0)
+                       {
+                               out->customblendfunc[0] = shader->layers[0].blendfunc[0];
+                               out->customblendfunc[1] = shader->layers[0].blendfunc[1];
+/*
+Q3 shader blendfuncs actually used in the game (* = supported by DP)
+* additive               GL_ONE GL_ONE
+  additive weird         GL_ONE GL_SRC_ALPHA
+  additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
+* alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
+  alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
+  brighten               GL_DST_COLOR GL_ONE
+  brighten               GL_ONE GL_SRC_COLOR
+  brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
+  brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
+* modulate               GL_DST_COLOR GL_ZERO
+* modulate               GL_ZERO GL_SRC_COLOR
+  modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
+  modulate inverse alpha GL_ZERO GL_SRC_ALPHA
+  modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
+* modulate x2            GL_DST_COLOR GL_SRC_COLOR
+* no blend               GL_ONE GL_ZERO
+  nothing                GL_ZERO GL_ONE
+*/
+                               // if not opaque, figure out what blendfunc to use
+                               if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
+                               {
+                                       if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
+                                               out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
+                                       else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
+                                               out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
+                                       else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
+                                               out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
+                                       else
+                                               out->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
+                               }
+                       }
+                       if (!shader->lighting)
+                               out->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
+                       if (shader->primarylayer)
+                       {
+                               int j;
+                               out->numskinframes = shader->primarylayer->numframes;
+                               out->skinframerate = shader->primarylayer->framerate;
+                               for (j = 0;j < shader->primarylayer->numframes;j++)
+                                       if (!(out->skinframes[j] = R_SkinFrame_LoadExternal(shader->primarylayer->texturename[j], ((shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (shader->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP) | (shader->primarylayer->clampmap ? TEXF_CLAMP : 0), false)))
+                                               Con_DPrintf("%s: could not load texture \"%s\" (frame %i) for shader \"%s\"\n", loadmodel->name, shader->primarylayer->texturename[j], j, out->name);
+                       }
+                       if (shader->backgroundlayer)
+                       {
+                               int j;
+                               out->backgroundnumskinframes = shader->backgroundlayer->numframes;
+                               out->backgroundskinframerate = shader->backgroundlayer->framerate;
+                               for (j = 0;j < shader->backgroundlayer->numframes;j++)
+                               {
+                                       if (!(out->backgroundskinframes[j] = R_SkinFrame_LoadExternal(shader->backgroundlayer->texturename[j], ((shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (shader->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP) | (shader->backgroundlayer->clampmap ? TEXF_CLAMP : 0), false)))
+                                       {
+                                               Con_DPrintf("%s: could not load texture \"%s\" (frame %i) for shader \"%s\"\n", loadmodel->name, shader->backgroundlayer->texturename[j], j, out->name);
+                                               out->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
+                                       }
+                               }
+                       }
+               }
+               else if (!strcmp(out->name, "noshader"))
+                       out->surfaceparms = 0;
+               else
                {
                        c++;
                        Con_DPrintf("%s: No shader found for texture \"%s\"\n", loadmodel->name, out->name);
                        out->surfaceparms = 0;
                        if (out->surfaceflags & Q3SURFACEFLAG_NODRAW)
-                               out->basematerialflags |= MATERIALFLAG_NODRAW;
+                               out->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
                        else if (out->surfaceflags & Q3SURFACEFLAG_SKY)
-                               out->basematerialflags |= MATERIALFLAG_SKY;
+                               out->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
                        else
                                out->basematerialflags |= MATERIALFLAG_WALL;
                        // these are defaults
@@ -4103,15 +4603,20 @@ parseerror:
                        //if (!strcmp(out->name, "caulk") || !strcmp(out->name, "common/caulk") || !strcmp(out->name, "textures/common/caulk")
                        // || !strcmp(out->name, "nodraw") || !strcmp(out->name, "common/nodraw") || !strcmp(out->name, "textures/common/nodraw"))
                        //      out->surfaceparms |= Q3SURFACEPARM_NODRAW;
-                       //if (R_TextureHasAlpha(out->skin.base))
+                       //if (R_TextureHasAlpha(out->skinframes[0].base))
                        //      out->surfaceparms |= Q3SURFACEPARM_TRANS;
+                       out->numskinframes = 1;
+                       if (!(out->skinframes[0] = R_SkinFrame_LoadExternal(out->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false)))
+                               Con_DPrintf("%s: could not load texture for missing shader \"%s\"\n", loadmodel->name, out->name);
                }
-               if (!Mod_LoadSkinFrame(&out->skin, out->name, (((out->textureflags & Q3TEXTUREFLAG_NOMIPMAPS) || (out->surfaceparms & Q3SURFACEPARM_NOMIPMAPS)) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (out->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP), false, true))
-                       if (!Mod_LoadSkinFrame(&out->skin, out->firstpasstexturename, (((out->textureflags & Q3TEXTUREFLAG_NOMIPMAPS) || (out->surfaceparms & Q3SURFACEPARM_NOMIPMAPS)) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (out->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP), false, true))
-                               if (cls.state != ca_dedicated)
-                                       Con_Printf("%s: texture loading for shader \"%s\" failed (first layer \"%s\" not found either)\n", loadmodel->name, out->name, out->firstpasstexturename);
-               // no animation
+               // init the animation variables
                out->currentframe = out;
+               if (out->numskinframes < 1)
+                       out->numskinframes = 1;
+               if (!out->skinframes[0])
+                       out->skinframes[0] = R_SkinFrame_LoadMissing();
+               out->currentskinframe = out->skinframes[0];
+               out->backgroundcurrentskinframe = out->backgroundskinframes[0];
        }
        if (c)
                Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
@@ -4175,7 +4680,7 @@ static void Mod_Q3BSP_LoadBrushes(lump_t *l)
        q3dbrush_t *in;
        q3mbrush_t *out;
        int i, j, n, c, count, maxplanes;
-       mplane_t *planes;
+       colplanef_t *planes;
 
        in = (q3dbrush_t *)(mod_base + l->fileofs);
        if (l->filelen % sizeof(*in))
@@ -4208,12 +4713,14 @@ static void Mod_Q3BSP_LoadBrushes(lump_t *l)
                        maxplanes = out->numbrushsides;
                        if (planes)
                                Mem_Free(planes);
-                       planes = (mplane_t *)Mem_Alloc(tempmempool, sizeof(mplane_t) * maxplanes);
+                       planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
                }
                for (j = 0;j < out->numbrushsides;j++)
                {
                        VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
                        planes[j].dist = out->firstbrushside[j].plane->dist;
+                       planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
+                       planes[j].texture = out->firstbrushside[j].texture;
                }
                // make the colbrush from the planes
                out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
@@ -4260,8 +4767,9 @@ static void Mod_Q3BSP_LoadVertices(lump_t *l)
        if (l->filelen % sizeof(*in))
                Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
        loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
-       loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 2 + 2 + 4)));
-       loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_vertex3f + count * 3;
+       loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
+       loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
+       loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
        loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
        loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
 
@@ -4270,6 +4778,9 @@ static void Mod_Q3BSP_LoadVertices(lump_t *l)
                loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
                loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
                loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
+               loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
+               loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
+               loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
                loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
                loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
                loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
@@ -4308,43 +4819,127 @@ static void Mod_Q3BSP_LoadTriangles(lump_t *l)
        }
 }
 
-static void Mod_Q3BSP_LoadLightmaps(lump_t *l)
+static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
 {
        q3dlightmap_t *in;
-       rtexture_t **out;
-       int i, count;
+       int i, j, count, power, power2, mask, endlightmap;
+       unsigned char *c;
 
        if (!l->filelen)
                return;
+       if (cls.state == ca_dedicated)
+               return;
        in = (q3dlightmap_t *)(mod_base + l->fileofs);
        if (l->filelen % sizeof(*in))
                Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
        count = l->filelen / sizeof(*in);
-       out = (rtexture_t **)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
+       loadmodel->brushq3.num_originallightmaps = count;
+
+       // now check the surfaces to see if any of them index an odd numbered
+       // lightmap, if so this is not a deluxemapped bsp file
+       //
+       // also check what lightmaps are actually used, because q3map2 sometimes
+       // (always?) makes an unused one at the end, which
+       // q3map2 sometimes (or always?) makes a second blank lightmap for no
+       // reason when only one lightmap is used, which can throw off the
+       // deluxemapping detection method, so check 2-lightmap bsp's specifically
+       // to see if the second lightmap is blank, if so it is not deluxemapped.
+       loadmodel->brushq3.deluxemapping = !(count & 1);
+       loadmodel->brushq3.deluxemapping_modelspace = true;
+       endlightmap = 0;
+       if (loadmodel->brushq3.deluxemapping)
+       {
+               int facecount = faceslump->filelen / sizeof(q3dface_t);
+               q3dface_t *faces = (q3dface_t *)(mod_base + faceslump->fileofs);
+               for (i = 0;i < facecount;i++)
+               {
+                       j = LittleLong(faces[i].lightmapindex);
+                       if (j >= 0)
+                       {
+                               endlightmap = max(endlightmap, j + 1);
+                               if ((j & 1) || j + 1 >= count)
+                               {
+                                       loadmodel->brushq3.deluxemapping = false;
+                                       break;
+                               }
+                       }
+               }
+       }
+       if (endlightmap < 2)
+               loadmodel->brushq3.deluxemapping = false;
 
-       loadmodel->brushq3.data_lightmaps = out;
-       loadmodel->brushq3.num_lightmaps = count;
+       // q3map2 sometimes (or always?) makes a second blank lightmap for no
+       // reason when only one lightmap is used, which can throw off the
+       // deluxemapping detection method, so check 2-lightmap bsp's specifically
+       // to see if the second lightmap is blank, if so it is not deluxemapped.
+       if (endlightmap == 1 && count == 2)
+       {
+               c = in[1].rgb;
+               for (i = 0;i < 128*128*3;i++)
+                       if (c[i])
+                               break;
+               if (i == 128*128*3)
+               {
+                       // all pixels in the unused lightmap were black...
+                       loadmodel->brushq3.deluxemapping = false;
+               }
+       }
 
-       for (i = 0;i < count;i++, in++, out++)
-               *out = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), 128, 128, in->rgb, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
+       Con_DPrintf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
+
+       // figure out what the most reasonable merge power is within limits
+       loadmodel->brushq3.num_lightmapmergepower = 0;
+       for (power = 1;power <= mod_q3bsp_lightmapmergepower.integer && (1 << power) <= gl_max_texture_size && (1 << (power * 2)) < 4 * (count >> loadmodel->brushq3.deluxemapping);power++)
+               loadmodel->brushq3.num_lightmapmergepower = power;
+       loadmodel->brushq3.num_lightmapmerge = 1 << loadmodel->brushq3.num_lightmapmergepower;
+
+       loadmodel->brushq3.num_mergedlightmaps = ((count >> loadmodel->brushq3.deluxemapping) + (1 << (loadmodel->brushq3.num_lightmapmergepower * 2)) - 1) >> (loadmodel->brushq3.num_lightmapmergepower * 2);
+       loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
+       if (loadmodel->brushq3.deluxemapping)
+               loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
+
+       // allocate a texture pool if we need it
+       if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
+               loadmodel->texturepool = R_AllocTexturePool();
+
+       j = 128 << loadmodel->brushq3.num_lightmapmergepower;
+       if (loadmodel->brushq3.data_lightmaps)
+               for (i = 0;i < loadmodel->brushq3.num_mergedlightmaps;i++)
+                       loadmodel->brushq3.data_lightmaps[i] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), j, j, NULL, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
+
+       if (loadmodel->brushq3.data_deluxemaps)
+               for (i = 0;i < loadmodel->brushq3.num_mergedlightmaps;i++)
+                       loadmodel->brushq3.data_deluxemaps[i] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", i), j, j, NULL, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
+
+       power = loadmodel->brushq3.num_lightmapmergepower;
+       power2 = power * 2;
+       mask = (1 << power) - 1;
+       for (i = 0;i < count;i++)
+       {
+               j = i >> loadmodel->brushq3.deluxemapping;
+               if (loadmodel->brushq3.deluxemapping && (i & 1))
+                       R_UpdateTexture(loadmodel->brushq3.data_deluxemaps[j >> power2], in[i].rgb, (j & mask) * 128, ((j >> power) & mask) * 128, 128, 128);
+               else
+                       R_UpdateTexture(loadmodel->brushq3.data_lightmaps [j >> power2], in[i].rgb, (j & mask) * 128, ((j >> power) & mask) * 128, 128, 128);
+       }
 }
 
 static void Mod_Q3BSP_LoadFaces(lump_t *l)
 {
        q3dface_t *in, *oldin;
        msurface_t *out, *oldout;
-       int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshnum, meshvertices, meshtriangles, numvertices, numtriangles;
+       int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, numvertices, numtriangles;
+       float lightmaptcbase[2], lightmaptcscale;
        //int *originalelement3i;
        //int *originalneighbor3i;
        float *originalvertex3f;
        //float *originalsvector3f;
        //float *originaltvector3f;
-       //float *originalnormal3f;
+       float *originalnormal3f;
        float *originalcolor4f;
        float *originaltexcoordtexture2f;
        float *originaltexcoordlightmap2f;
        float *v;
-       surfmesh_t *mesh, *tempmeshlist[1024];
 
        in = (q3dface_t *)(mod_base + l->fileofs);
        if (l->filelen % sizeof(*in))
@@ -4356,319 +4951,336 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
        loadmodel->num_surfaces = count;
 
        i = 0;
-       for (meshnum = 0;i < count;meshnum++)
-       {
-               oldi = i;
-               oldin = in;
-               oldout = out;
-               meshvertices = 0;
-               meshtriangles = 0;
-               for (;i < count;i++, in++, out++)
-               {
-                       // check face type first
-                       type = LittleLong(in->type);
-                       if (type != Q3FACETYPE_POLYGON
-                        && type != Q3FACETYPE_PATCH
-                        && type != Q3FACETYPE_MESH
-                        && type != Q3FACETYPE_FLARE)
-                       {
-                               Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
-                               continue;
-                       }
+       oldi = i;
+       oldin = in;
+       oldout = out;
+       meshvertices = 0;
+       meshtriangles = 0;
+       for (;i < count;i++, in++, out++)
+       {
+               // check face type first
+               type = LittleLong(in->type);
+               if (type != Q3FACETYPE_POLYGON
+                && type != Q3FACETYPE_PATCH
+                && type != Q3FACETYPE_MESH
+                && type != Q3FACETYPE_FLARE)
+               {
+                       Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
+                       continue;
+               }
 
-                       n = LittleLong(in->textureindex);
-                       if (n < 0 || n >= loadmodel->num_textures)
-                       {
-                               Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
-                               continue;
-                       }
-                       out->texture = loadmodel->data_textures + n;
-                       n = LittleLong(in->effectindex);
-                       if (n < -1 || n >= loadmodel->brushq3.num_effects)
+               n = LittleLong(in->textureindex);
+               if (n < 0 || n >= loadmodel->num_textures)
+               {
+                       Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
+                       continue;
+               }
+               out->texture = loadmodel->data_textures + n;
+               n = LittleLong(in->effectindex);
+               if (n < -1 || n >= loadmodel->brushq3.num_effects)
+               {
+                       if (developer.integer >= 100)
+                               Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
+                       n = -1;
+               }
+               if (n == -1)
+                       out->effect = NULL;
+               else
+                       out->effect = loadmodel->brushq3.data_effects + n;
+
+               if (cls.state != ca_dedicated)
+               {
+                       out->lightmaptexture = NULL;
+                       out->deluxemaptexture = r_texture_blanknormalmap;
+                       n = LittleLong(in->lightmapindex);
+                       if (n < 0)
+                               n = -1;
+                       else if (n >= loadmodel->brushq3.num_originallightmaps)
                        {
-                               if (developer.integer >= 2)
-                                       Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
+                               Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_originallightmaps);
                                n = -1;
                        }
-                       if (n == -1)
-                               out->effect = NULL;
                        else
-                               out->effect = loadmodel->brushq3.data_effects + n;
-                       n = LittleLong(in->lightmapindex);
-                       if (n >= loadmodel->brushq3.num_lightmaps)
                        {
-                               Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_lightmaps);
-                               n = -1;
+                               out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n >> (loadmodel->brushq3.num_lightmapmergepower * 2 + loadmodel->brushq3.deluxemapping)];
+                               if (loadmodel->brushq3.deluxemapping)
+                                       out->deluxemaptexture = loadmodel->brushq3.data_deluxemaps[n >> (loadmodel->brushq3.num_lightmapmergepower * 2 + loadmodel->brushq3.deluxemapping)];
                        }
-                       else if (n < 0)
-                               n = -1;
-                       if (n == -1)
-                               out->lightmaptexture = NULL;
-                       else
-                               out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n];
+               }
 
-                       firstvertex = LittleLong(in->firstvertex);
-                       numvertices = LittleLong(in->numvertices);
-                       firstelement = LittleLong(in->firstelement);
-                       numtriangles = LittleLong(in->numelements) / 3;
-                       if (numtriangles * 3 != LittleLong(in->numelements))
+               firstvertex = LittleLong(in->firstvertex);
+               numvertices = LittleLong(in->numvertices);
+               firstelement = LittleLong(in->firstelement);
+               numtriangles = LittleLong(in->numelements) / 3;
+               if (numtriangles * 3 != LittleLong(in->numelements))
+               {
+                       Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): numelements %i is not a multiple of 3\n", i, out->texture->name, LittleLong(in->numelements));
+                       continue;
+               }
+               if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
+               {
+                       Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid vertex range %i : %i (%i vertices)\n", i, out->texture->name, firstvertex, firstvertex + numvertices, loadmodel->brushq3.num_vertices);
+                       continue;
+               }
+               if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
+               {
+                       Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid element range %i : %i (%i elements)\n", i, out->texture->name, firstelement, firstelement + numtriangles * 3, loadmodel->brushq3.num_triangles * 3);
+                       continue;
+               }
+               switch(type)
+               {
+               case Q3FACETYPE_POLYGON:
+               case Q3FACETYPE_MESH:
+                       // no processing necessary
+                       break;
+               case Q3FACETYPE_PATCH:
+                       patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
+                       patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
+                       if (numvertices != (patchsize[0] * patchsize[1]) || patchsize[0] < 3 || patchsize[1] < 3 || !(patchsize[0] & 1) || !(patchsize[1] & 1) || patchsize[0] * patchsize[1] >= min(r_subdivisions_maxvertices.integer, r_subdivisions_collision_maxvertices.integer))
                        {
-                               Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): numelements %i is not a multiple of 3\n", i, out->texture->name, LittleLong(in->numelements));
+                               Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
                                continue;
                        }
-                       if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
+                       originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
+                       // convert patch to Q3FACETYPE_MESH
+                       xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
+                       ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
+                       // bound to user settings
+                       xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
+                       ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
+                       // bound to sanity settings
+                       xtess = bound(1, xtess, 1024);
+                       ytess = bound(1, ytess, 1024);
+                       // bound to user limit on vertices
+                       while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
                        {
-                               Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid vertex range %i : %i (%i vertices)\n", i, out->texture->name, firstvertex, firstvertex + numvertices, loadmodel->brushq3.num_vertices);
-                               continue;
+                               if (xtess > ytess)
+                                       xtess--;
+                               else
+                                       ytess--;
                        }
-                       if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
+                       finalwidth = ((patchsize[0] - 1) * xtess) + 1;
+                       finalheight = ((patchsize[1] - 1) * ytess) + 1;
+                       numvertices = finalwidth * finalheight;
+                       numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
+                       break;
+               case Q3FACETYPE_FLARE:
+                       if (developer.integer >= 100)
+                               Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
+                       // don't render it
+                       continue;
+               }
+               out->num_vertices = numvertices;
+               out->num_triangles = numtriangles;
+               meshvertices += out->num_vertices;
+               meshtriangles += out->num_triangles;
+       }
+
+       i = oldi;
+       in = oldin;
+       out = oldout;
+       Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
+       meshvertices = 0;
+       meshtriangles = 0;
+       for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
+       {
+               if (out->num_vertices < 3 || out->num_triangles < 1)
+                       continue;
+
+               type = LittleLong(in->type);
+               firstvertex = LittleLong(in->firstvertex);
+               firstelement = LittleLong(in->firstelement);
+               out->num_firstvertex = meshvertices;
+               out->num_firsttriangle = meshtriangles;
+               switch(type)
+               {
+               case Q3FACETYPE_POLYGON:
+               case Q3FACETYPE_MESH:
+                       // no processing necessary, except for lightmap merging
+                       for (j = 0;j < out->num_vertices;j++)
                        {
-                               Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid element range %i : %i (%i elements)\n", i, out->texture->name, firstelement, firstelement + numtriangles * 3, loadmodel->brushq3.num_triangles * 3);
-                               continue;
+                               (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
+                               (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
+                               (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
+                               (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
+                               (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
+                               (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
+                               (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
+                               (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
+                               (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
+                               (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
+                               (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
+                               (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
+                               (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
+                               (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
                        }
-                       switch(type)
+                       for (j = 0;j < out->num_triangles*3;j++)
+                               (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
+                       break;
+               case Q3FACETYPE_PATCH:
+                       patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
+                       patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
+                       originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
+                       originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
+                       originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
+                       originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
+                       originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
+                       // convert patch to Q3FACETYPE_MESH
+                       xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
+                       ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
+                       // bound to user settings
+                       xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
+                       ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
+                       // bound to sanity settings
+                       xtess = bound(1, xtess, 1024);
+                       ytess = bound(1, ytess, 1024);
+                       // bound to user limit on vertices
+                       while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
                        {
-                       case Q3FACETYPE_POLYGON:
-                       case Q3FACETYPE_MESH:
-                               // no processing necessary
-                               break;
-                       case Q3FACETYPE_PATCH:
-                               patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
-                               patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
-                               if (numvertices != (patchsize[0] * patchsize[1]) || patchsize[0] < 3 || patchsize[1] < 3 || !(patchsize[0] & 1) || !(patchsize[1] & 1) || patchsize[0] * patchsize[1] >= min(r_subdivisions_maxvertices.integer, r_subdivisions_collision_maxvertices.integer))
-                               {
-                                       Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
-                                       continue;
-                               }
-                               originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
-                               // convert patch to Q3FACETYPE_MESH
-                               xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
-                               ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
-                               // bound to user settings
-                               xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
-                               ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
-                               // bound to sanity settings
-                               xtess = bound(1, xtess, 1024);
-                               ytess = bound(1, ytess, 1024);
-                               // bound to user limit on vertices
-                               while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
-                               {
-                                       if (xtess > ytess)
-                                               xtess--;
-                                       else
-                                               ytess--;
-                               }
-                               finalwidth = ((patchsize[0] - 1) * xtess) + 1;
-                               finalheight = ((patchsize[1] - 1) * ytess) + 1;
-                               numvertices = finalwidth * finalheight;
-                               numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
-                               break;
-                       case Q3FACETYPE_FLARE:
-                               if (developer.integer >= 2)
-                                       Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
-                               // don't render it
-                               continue;
+                               if (xtess > ytess)
+                                       xtess--;
+                               else
+                                       ytess--;
                        }
-                       out->num_vertices = numvertices;
-                       out->num_triangles = numtriangles;
-                       if (meshvertices + out->num_vertices > 65536)
-                               break;
-                       meshvertices += out->num_vertices;
-                       meshtriangles += out->num_triangles;
+                       finalwidth = ((patchsize[0] - 1) * xtess) + 1;
+                       finalheight = ((patchsize[1] - 1) * ytess) + 1;
+                       finalvertices = finalwidth * finalheight;
+                       finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
+                       type = Q3FACETYPE_MESH;
+                       // generate geometry
+                       // (note: normals are skipped because they get recalculated)
+                       Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
+                       Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
+                       Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
+                       Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
+                       Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
+                       Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
+                       out->num_triangles = Mod_RemoveDegenerateTriangles(out->num_triangles, (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), loadmodel->surfmesh.data_vertex3f);
+                       if (developer.integer >= 100)
+                       {
+                               if (out->num_triangles < finaltriangles)
+                                       Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve subdivided to %i vertices / %i triangles, %i degenerate triangles removed (leaving %i)\n", patchsize[0], patchsize[1], out->num_vertices, finaltriangles, finaltriangles - out->num_triangles, out->num_triangles);
+                               else
+                                       Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve subdivided to %i vertices / %i triangles\n", patchsize[0], patchsize[1], out->num_vertices, out->num_triangles);
+                       }
+                       // q3map does not put in collision brushes for curves... ugh
+                       // build the lower quality collision geometry
+                       xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
+                       ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
+                       // bound to user settings
+                       xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
+                       ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
+                       // bound to sanity settings
+                       xtess = bound(1, xtess, 1024);
+                       ytess = bound(1, ytess, 1024);
+                       // bound to user limit on vertices
+                       while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
+                       {
+                               if (xtess > ytess)
+                                       xtess--;
+                               else
+                                       ytess--;
+                       }
+                       finalwidth = ((patchsize[0] - 1) * xtess) + 1;
+                       finalheight = ((patchsize[1] - 1) * ytess) + 1;
+                       finalvertices = finalwidth * finalheight;
+                       finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
+
+                       out->data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
+                       out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
+                       out->num_collisionvertices = finalvertices;
+                       out->num_collisiontriangles = finaltriangles;
+                       Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
+                       Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
+
+                       //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
+                       Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
+
+                       oldnumtriangles = out->num_triangles;
+                       oldnumtriangles2 = out->num_collisiontriangles;
+                       out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
+                       if (developer.integer >= 100)
+                               Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve became %i:%i vertices / %i:%i triangles (%i:%i degenerate)\n", patchsize[0], patchsize[1], out->num_vertices, out->num_collisionvertices, oldnumtriangles, oldnumtriangles2, oldnumtriangles - out->num_triangles, oldnumtriangles2 - out->num_collisiontriangles);
+                       break;
+               default:
+                       break;
                }
-
-               i = oldi;
-               in = oldin;
-               out = oldout;
-               mesh = tempmeshlist[meshnum] = Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
-               meshvertices = 0;
-               meshtriangles = 0;
-               for (;i < count && meshvertices + out->num_vertices <= mesh->num_vertices;i++, in++, out++)
+               meshvertices += out->num_vertices;
+               meshtriangles += out->num_triangles;
+               for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
+                       if ((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] < out->num_firstvertex || (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] >= out->num_firstvertex + out->num_vertices)
+                               invalidelements++;
+               if (invalidelements)
                {
-                       if (out->num_vertices < 3 || out->num_triangles < 1)
-                               continue;
-
-                       type = LittleLong(in->type);
-                       firstvertex = LittleLong(in->firstvertex);
-                       firstelement = LittleLong(in->firstelement);
-                       out->groupmesh = mesh;
-                       out->num_firstvertex = meshvertices;
-                       out->num_firsttriangle = meshtriangles;
-                       switch(type)
+                       Con_Printf("Mod_Q3BSP_LoadFaces: Warning: face #%i has %i invalid elements, type = %i, texture->name = \"%s\", texture->surfaceflags = %i, firstvertex = %i, numvertices = %i, firstelement = %i, numelements = %i, elements list:\n", i, invalidelements, type, out->texture->name, out->texture->surfaceflags, firstvertex, out->num_vertices, firstelement, out->num_triangles * 3);
+                       for (j = 0;j < out->num_triangles * 3;j++)
                        {
-                       case Q3FACETYPE_POLYGON:
-                       case Q3FACETYPE_MESH:
-                               // no processing necessary
-                               for (j = 0;j < out->num_vertices;j++)
-                               {
-                                       (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
-                                       (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
-                                       (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
-                                       (out->groupmesh->data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
-                                       (out->groupmesh->data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
-                                       (out->groupmesh->data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
-                                       (out->groupmesh->data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
-                                       (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
-                                       (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
-                                       (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
-                                       (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
-                               }
-                               for (j = 0;j < out->num_triangles*3;j++)
-                                       (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
-                               break;
-                       case Q3FACETYPE_PATCH:
-                               patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
-                               patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
-                               originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
-                               originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
-                               originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
-                               originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
-                               // convert patch to Q3FACETYPE_MESH
-                               xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
-                               ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
-                               // bound to user settings
-                               xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
-                               ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
-                               // bound to sanity settings
-                               xtess = bound(1, xtess, 1024);
-                               ytess = bound(1, ytess, 1024);
-                               // bound to user limit on vertices
-                               while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
-                               {
-                                       if (xtess > ytess)
-                                               xtess--;
-                                       else
-                                               ytess--;
-                               }
-                               finalwidth = ((patchsize[0] - 1) * xtess) + 1;
-                               finalheight = ((patchsize[1] - 1) * ytess) + 1;
-                               finalvertices = finalwidth * finalheight;
-                               finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
-                               type = Q3FACETYPE_MESH;
-                               // generate geometry
-                               // (note: normals are skipped because they get recalculated)
-                               Q3PatchTesselateFloat(3, sizeof(float[3]), (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
-                               Q3PatchTesselateFloat(2, sizeof(float[2]), (out->groupmesh->data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
-                               Q3PatchTesselateFloat(2, sizeof(float[2]), (out->groupmesh->data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
-                               Q3PatchTesselateFloat(4, sizeof(float[4]), (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
-                               Q3PatchTriangleElements((out->groupmesh->data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
-                               out->num_triangles = Mod_RemoveDegenerateTriangles(out->num_triangles, (out->groupmesh->data_element3i + 3 * out->num_firsttriangle), (out->groupmesh->data_element3i + 3 * out->num_firsttriangle), out->groupmesh->data_vertex3f);
-                               if (developer.integer >= 2)
-                               {
-                                       if (out->num_triangles < finaltriangles)
-                                               Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve subdivided to %i vertices / %i triangles, %i degenerate triangles removed (leaving %i)\n", patchsize[0], patchsize[1], out->num_vertices, finaltriangles, finaltriangles - out->num_triangles, out->num_triangles);
-                                       else
-                                               Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve subdivided to %i vertices / %i triangles\n", patchsize[0], patchsize[1], out->num_vertices, out->num_triangles);
-                               }
-                               // q3map does not put in collision brushes for curves... ugh
-                               // build the lower quality collision geometry
-                               xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
-                               ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
-                               // bound to user settings
-                               xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
-                               ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
-                               // bound to sanity settings
-                               xtess = bound(1, xtess, 1024);
-                               ytess = bound(1, ytess, 1024);
-                               // bound to user limit on vertices
-                               while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
-                               {
-                                       if (xtess > ytess)
-                                               xtess--;
-                                       else
-                                               ytess--;
-                               }
-                               finalwidth = ((patchsize[0] - 1) * xtess) + 1;
-                               finalheight = ((patchsize[1] - 1) * ytess) + 1;
-                               finalvertices = finalwidth * finalheight;
-                               finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
-
-                               out->data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
-                               out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
-                               out->num_collisionvertices = finalvertices;
-                               out->num_collisiontriangles = finaltriangles;
-                               Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
-                               Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
-
-                               //Mod_SnapVertices(3, out->num_vertices, (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), 0.25);
-                               Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
-
-                               oldnumtriangles = out->num_triangles;
-                               oldnumtriangles2 = out->num_collisiontriangles;
-                               out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
-                               if (developer.integer)
-                                       Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve became %i:%i vertices / %i:%i triangles (%i:%i degenerate)\n", patchsize[0], patchsize[1], out->num_vertices, out->num_collisionvertices, oldnumtriangles, oldnumtriangles2, oldnumtriangles - out->num_triangles, oldnumtriangles2 - out->num_collisiontriangles);
-                               break;
-                       default:
-                               break;
+                               Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
+                               if ((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] < out->num_firstvertex || (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] >= out->num_firstvertex + out->num_vertices)
+                                       (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
                        }
-                       meshvertices += out->num_vertices;
-                       meshtriangles += out->num_triangles;
-                       for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
-                               if ((out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] < out->num_firstvertex || (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] >= out->num_firstvertex + out->num_vertices)
-                                       invalidelements++;
-                       if (invalidelements)
+                       Con_Print("\n");
+               }
+               // calculate a bounding box
+               VectorClear(out->mins);
+               VectorClear(out->maxs);
+               if (out->num_vertices)
+               {
+                       int lightmapindex = LittleLong(in->lightmapindex);
+                       if (lightmapindex >= 0 && cls.state != ca_dedicated)
                        {
-                               Con_Printf("Mod_Q3BSP_LoadFaces: Warning: face #%i has %i invalid elements, type = %i, texture->name = \"%s\", texture->surfaceflags = %i, firstvertex = %i, numvertices = %i, firstelement = %i, numelements = %i, elements list:\n", i, invalidelements, type, out->texture->name, out->texture->surfaceflags, firstvertex, out->num_vertices, firstelement, out->num_triangles * 3);
-                               for (j = 0;j < out->num_triangles * 3;j++)
+                               lightmapindex >>= loadmodel->brushq3.deluxemapping;
+                               lightmaptcscale = 1.0f / loadmodel->brushq3.num_lightmapmerge;
+                               lightmaptcbase[0] = ((lightmapindex                                             ) & (loadmodel->brushq3.num_lightmapmerge - 1)) * lightmaptcscale;
+                               lightmaptcbase[1] = ((lightmapindex >> loadmodel->brushq3.num_lightmapmergepower) & (loadmodel->brushq3.num_lightmapmerge - 1)) * lightmaptcscale;
+                               // modify the lightmap texcoords to match this region of the merged lightmap
+                               for (j = 0, v = loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex;j < out->num_vertices;j++, v += 2)
                                {
-                                       Con_Printf(" %i", (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
-                                       if ((out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] < out->num_firstvertex || (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] >= out->num_firstvertex + out->num_vertices)
-                                               (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
+                                       v[0] = v[0] * lightmaptcscale + lightmaptcbase[0];
+                                       v[1] = v[1] * lightmaptcscale + lightmaptcbase[1];
                                }
-                               Con_Print("\n");
                        }
-                       // for per pixel lighting
-                       Mod_BuildTextureVectorsAndNormals(out->num_firstvertex, out->num_vertices, out->num_triangles, out->groupmesh->data_vertex3f, out->groupmesh->data_texcoordtexture2f, (out->groupmesh->data_element3i + 3 * out->num_firsttriangle), out->groupmesh->data_svector3f, out->groupmesh->data_tvector3f, out->groupmesh->data_normal3f, true);
-                       // calculate a bounding box
-                       VectorClear(out->mins);
-                       VectorClear(out->maxs);
-                       if (out->num_vertices)
+                       VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
+                       VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
+                       for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
                        {
-                               VectorCopy((out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), out->mins);
-                               VectorCopy((out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), out->maxs);
-                               for (j = 1, v = (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
-                               {
-                                       out->mins[0] = min(out->mins[0], v[0]);
-                                       out->maxs[0] = max(out->maxs[0], v[0]);
-                                       out->mins[1] = min(out->mins[1], v[1]);
-                                       out->maxs[1] = max(out->maxs[1], v[1]);
-                                       out->mins[2] = min(out->mins[2], v[2]);
-                                       out->maxs[2] = max(out->maxs[2], v[2]);
-                               }
-                               out->mins[0] -= 1.0f;
-                               out->mins[1] -= 1.0f;
-                               out->mins[2] -= 1.0f;
-                               out->maxs[0] += 1.0f;
-                               out->maxs[1] += 1.0f;
-                               out->maxs[2] += 1.0f;
+                               out->mins[0] = min(out->mins[0], v[0]);
+                               out->maxs[0] = max(out->maxs[0], v[0]);
+                               out->mins[1] = min(out->mins[1], v[1]);
+                               out->maxs[1] = max(out->maxs[1], v[1]);
+                               out->mins[2] = min(out->mins[2], v[2]);
+                               out->maxs[2] = max(out->maxs[2], v[2]);
                        }
-                       // set lightmap styles for consistency with q1bsp
-                       //out->lightmapinfo->styles[0] = 0;
-                       //out->lightmapinfo->styles[1] = 255;
-                       //out->lightmapinfo->styles[2] = 255;
-                       //out->lightmapinfo->styles[3] = 255;
+                       out->mins[0] -= 1.0f;
+                       out->mins[1] -= 1.0f;
+                       out->mins[2] -= 1.0f;
+                       out->maxs[0] += 1.0f;
+                       out->maxs[1] += 1.0f;
+                       out->maxs[2] += 1.0f;
                }
+               // set lightmap styles for consistency with q1bsp
+               //out->lightmapinfo->styles[0] = 0;
+               //out->lightmapinfo->styles[1] = 255;
+               //out->lightmapinfo->styles[2] = 255;
+               //out->lightmapinfo->styles[3] = 255;
        }
 
-       // now store the completed list of meshes
-       loadmodel->nummeshes = meshnum;
-       if (loadmodel->nummeshes)
-       {
-               loadmodel->meshlist = (surfmesh_t **)Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t *) * loadmodel->nummeshes);
-               memcpy(loadmodel->meshlist, tempmeshlist, sizeof(surfmesh_t *) * loadmodel->nummeshes);
-       }
+       // for per pixel lighting
+       Mod_BuildTextureVectorsFromNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
 
        // free the no longer needed vertex data
        loadmodel->brushq3.num_vertices = 0;
-       Mem_Free(loadmodel->brushq3.data_vertex3f);
+       if (loadmodel->brushq3.data_vertex3f)
+               Mem_Free(loadmodel->brushq3.data_vertex3f);
        loadmodel->brushq3.data_vertex3f = NULL;
+       loadmodel->brushq3.data_normal3f = NULL;
        loadmodel->brushq3.data_texcoordtexture2f = NULL;
        loadmodel->brushq3.data_texcoordlightmap2f = NULL;
        loadmodel->brushq3.data_color4f = NULL;
        // free the no longer needed triangle data
        loadmodel->brushq3.num_triangles = 0;
-       Mem_Free(loadmodel->brushq3.data_element3i);
+       if (loadmodel->brushq3.data_element3i)
+               Mem_Free(loadmodel->brushq3.data_element3i);
        loadmodel->brushq3.data_element3i = NULL;
 }
 
@@ -4862,12 +5474,12 @@ static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
        loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
        loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
        loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
-       loadmodel->brushq3.num_lightgrid_imins[0] = ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
-       loadmodel->brushq3.num_lightgrid_imins[1] = ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
-       loadmodel->brushq3.num_lightgrid_imins[2] = ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
-       loadmodel->brushq3.num_lightgrid_imaxs[0] = floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
-       loadmodel->brushq3.num_lightgrid_imaxs[1] = floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
-       loadmodel->brushq3.num_lightgrid_imaxs[2] = floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
+       loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
+       loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
+       loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
+       loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
+       loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
+       loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
        loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
        loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
        loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
@@ -4879,9 +5491,9 @@ static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
        if (l->filelen)
        {
                if (l->filelen < count * (int)sizeof(*in))
-                       Host_Error("Mod_Q3BSP_LoadLightGrid: invalid lightgrid lump size %i bytes, should be %i bytes (%ix%ix%i)", l->filelen, count * sizeof(*in), loadmodel->brushq3.num_lightgrid_dimensions[0], loadmodel->brushq3.num_lightgrid_dimensions[1], loadmodel->brushq3.num_lightgrid_dimensions[2]);
+                       Host_Error("Mod_Q3BSP_LoadLightGrid: invalid lightgrid lump size %i bytes, should be %i bytes (%ix%ix%i)", l->filelen, (int)(count * sizeof(*in)), loadmodel->brushq3.num_lightgrid_dimensions[0], loadmodel->brushq3.num_lightgrid_dimensions[1], loadmodel->brushq3.num_lightgrid_dimensions[2]);
                if (l->filelen != count * (int)sizeof(*in))
-                       Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i", count * sizeof(*in), l->filelen);
+                       Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", (int)(count * sizeof(*in)), l->filelen);
                out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
                loadmodel->brushq3.data_lightgrid = out;
                loadmodel->brushq3.num_lightgrid = count;
@@ -4922,7 +5534,7 @@ static void Mod_Q3BSP_LoadPVS(lump_t *l)
                Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
        totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
        if (l->filelen < totalchains + (int)sizeof(*in))
-               Host_Error("Mod_Q3BSP_LoadPVS: lump too small ((numclusters = %i) * (chainlength = %i) + sizeof(q3dpvs_t) == %i bytes, lump is %i bytes)", loadmodel->brush.num_pvsclusters, loadmodel->brush.num_pvsclusterbytes, totalchains + sizeof(*in), l->filelen);
+               Host_Error("Mod_Q3BSP_LoadPVS: lump too small ((numclusters = %i) * (chainlength = %i) + sizeof(q3dpvs_t) == %i bytes, lump is %i bytes)", loadmodel->brush.num_pvsclusters, loadmodel->brush.num_pvsclusterbytes, (int)(totalchains + sizeof(*in)), l->filelen);
 
        loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
        memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
@@ -4931,15 +5543,20 @@ static void Mod_Q3BSP_LoadPVS(lump_t *l)
 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
 {
        int i, j, k, index[3];
-       float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch;
+       float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch, stylescale;
        q3dlightgrid_t *a, *s;
+
+       // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
+       stylescale = r_refdef.lightstylevalue[0] * (1.0f / 264.0f);
+
        if (!model->brushq3.num_lightgrid)
        {
-               ambientcolor[0] = 1;
-               ambientcolor[1] = 1;
-               ambientcolor[2] = 1;
+               ambientcolor[0] = stylescale;
+               ambientcolor[1] = stylescale;
+               ambientcolor[2] = stylescale;
                return;
        }
+
        Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
        //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
        //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
@@ -4950,6 +5567,7 @@ static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientc
        index[1] = (int)floor(transformed[1]);
        index[2] = (int)floor(transformed[2]);
        //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
+
        // now lerp the values
        VectorClear(diffusenormal);
        a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
@@ -4965,7 +5583,7 @@ static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientc
                                continue;
                        for (i = 0;i < 2;i++)
                        {
-                               blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0])));
+                               blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
                                if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
                                        continue;
                                s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
@@ -4981,6 +5599,8 @@ static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientc
                        }
                }
        }
+
+       // normalize the light direction before turning
        VectorNormalize(diffusenormal);
        //Con_Printf("result: ambient %f %f %f diffuse %f %f %f diffusenormal %f %f %f\n", ambientcolor[0], ambientcolor[1], ambientcolor[2], diffusecolor[0], diffusecolor[1], diffusecolor[2], diffusenormal[0], diffusenormal[1], diffusenormal[2]);
 }
@@ -5013,51 +5633,60 @@ static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, model_t *model,
        float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
        mleaf_t *leaf;
        msurface_t *surface;
+       mplane_t *plane;
        colbrushf_t *brush;
-       if (startfrac > trace->realfraction)
-               return;
-       // note: all line fragments past first impact fraction are ignored
-       if (VectorCompare(start, end))
-       {
-               // find which leaf the point is in
-               while (node->plane)
-                       node = node->children[DotProduct(start, node->plane->normal) < node->plane->dist];
-       }
-       else
+       // walk the tree until we hit a leaf, recursing for any split cases
+       while (node->plane)
        {
-               // find which nodes the line is in and recurse for them
-               while (node->plane)
+               // abort if this part of the bsp tree can not be hit by this trace
+//             if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
+//                     return;
+               plane = node->plane;
+               // axial planes are much more common than non-axial, so an optimized
+               // axial case pays off here
+               if (plane->type < 3)
                {
-                       // recurse down node sides
-                       dist1 = PlaneDiff(start, node->plane);
-                       dist2 = PlaneDiff(end, node->plane);
-                       startside = dist1 < 0;
-                       endside = dist2 < 0;
-                       if (startside == endside)
-                       {
-                               // most of the time the line fragment is on one side of the plane
-                               node = node->children[startside];
-                       }
-                       else
-                       {
-                               // line crosses node plane, split the line
-                               midfrac = dist1 / (dist1 - dist2);
-                               VectorLerp(start, midfrac, end, mid);
-                               // take the near side first
-                               Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
-                               if (midfrac <= trace->realfraction)
-                                       Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
-                               return;
-                       }
+                       dist1 = start[plane->type] - plane->dist;
+                       dist2 = end[plane->type] - plane->dist;
+               }
+               else
+               {
+                       dist1 = DotProduct(start, plane->normal) - plane->dist;
+                       dist2 = DotProduct(end, plane->normal) - plane->dist;
+               }
+               startside = dist1 < 0;
+               endside = dist2 < 0;
+               if (startside == endside)
+               {
+                       // most of the time the line fragment is on one side of the plane
+                       node = node->children[startside];
+               }
+               else
+               {
+                       // line crosses node plane, split the line
+                       dist1 = PlaneDiff(linestart, plane);
+                       dist2 = PlaneDiff(lineend, plane);
+                       midfrac = dist1 / (dist1 - dist2);
+                       VectorLerp(linestart, midfrac, lineend, mid);
+                       // take the near side first
+                       Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
+                       // if we found an impact on the front side, don't waste time
+                       // exploring the far side
+                       if (midfrac <= trace->realfraction)
+                               Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
+                       return;
                }
        }
+       // abort if this part of the bsp tree can not be hit by this trace
+//     if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
+//             return;
        // hit a leaf
-       nodesegmentmins[0] = min(start[0], end[0]);
-       nodesegmentmins[1] = min(start[1], end[1]);
-       nodesegmentmins[2] = min(start[2], end[2]);
-       nodesegmentmaxs[0] = max(start[0], end[0]);
-       nodesegmentmaxs[1] = max(start[1], end[1]);
-       nodesegmentmaxs[2] = max(start[2], end[2]);
+       nodesegmentmins[0] = min(start[0], end[0]) - 1;
+       nodesegmentmins[1] = min(start[1], end[1]) - 1;
+       nodesegmentmins[2] = min(start[2], end[2]) - 1;
+       nodesegmentmaxs[0] = max(start[0], end[0]) + 1;
+       nodesegmentmaxs[1] = max(start[1], end[1]) + 1;
+       nodesegmentmaxs[2] = max(start[2], end[2]) + 1;
        // line trace the brushes
        leaf = (mleaf_t *)node;
        for (i = 0;i < leaf->numleafbrushes;i++)
@@ -5067,12 +5696,10 @@ static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, model_t *model,
                {
                        brush->markframe = markframe;
                        Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
-                       if (startfrac > trace->realfraction)
-                               return;
                }
        }
        // can't do point traces on curves (they have no thickness)
-       if (mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
+       if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
        {
                // line trace the curves
                for (i = 0;i < leaf->numleafsurfaces;i++)
@@ -5081,9 +5708,7 @@ static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, model_t *model,
                        if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
                        {
                                surface->collisionmarkframe = markframe;
-                               Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
-                               if (startfrac > trace->realfraction)
-                                       return;
+                               Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
                        }
                }
        }
@@ -5093,231 +5718,18 @@ static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, model_t *model
 {
        int i;
        int sides;
-       float nodesegmentmins[3], nodesegmentmaxs[3];
        mleaf_t *leaf;
        colbrushf_t *brush;
        msurface_t *surface;
-       /*
-               // find which nodes the line is in and recurse for them
-               while (node->plane)
-               {
-                       // recurse down node sides
-                       int startside, endside;
-                       float dist1near, dist1far, dist2near, dist2far;
-                       BoxPlaneCornerDistances(thisbrush_start->mins, thisbrush_start->maxs, node->plane, &dist1near, &dist1far);
-                       BoxPlaneCornerDistances(thisbrush_end->mins, thisbrush_end->maxs, node->plane, &dist2near, &dist2far);
-                       startside = dist1near < 0;
-                       startside = dist1near < 0 ? (dist1far < 0 ? 1 : 2) : (dist1far < 0 ? 2 : 0);
-                       endside = dist2near < 0 ? (dist2far < 0 ? 1 : 2) : (dist2far < 0 ? 2 : 0);
-                       if (startside == 2 || endside == 2)
-                       {
-                               // brushes cross plane
-                               // do not clip anything, just take both sides
-                               Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-                               node = node->children[1];
-                               continue;
-                       }
-                       if (startside == 0)
-                       {
-                               if (endside == 0)
-                               {
-                                       node = node->children[0];
-                                       continue;
-                               }
-                               else
-                               {
-                                       //midf0 = dist1near / (dist1near - dist2near);
-                                       //midf1 = dist1far / (dist1far - dist2far);
-                                       Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-                                       node = node->children[1];
-                                       continue;
-                               }
-                       }
-                       else
-                       {
-                               if (endside == 0)
-                               {
-                                       //midf0 = dist1near / (dist1near - dist2near);
-                                       //midf1 = dist1far / (dist1far - dist2far);
-                                       Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-                                       node = node->children[1];
-                                       continue;
-                               }
-                               else
-                               {
-                                       node = node->children[1];
-                                       continue;
-                               }
-                       }
-
-                       if (dist1near <  0 && dist2near <  0 && dist1far <  0 && dist2far <  0){node = node->children[1];continue;}
-                       if (dist1near <  0 && dist2near <  0 && dist1far <  0 && dist2far >= 0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
-                       if (dist1near <  0 && dist2near <  0 && dist1far >= 0 && dist2far <  0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
-                       if (dist1near <  0 && dist2near <  0 && dist1far >= 0 && dist2far >= 0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
-                       if (dist1near <  0 && dist2near >= 0 && dist1far <  0 && dist2far <  0){node = node->children[1];continue;}
-                       if (dist1near <  0 && dist2near >= 0 && dist1far <  0 && dist2far >= 0){}
-                       if (dist1near <  0 && dist2near >= 0 && dist1far >= 0 && dist2far <  0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
-                       if (dist1near <  0 && dist2near >= 0 && dist1far >= 0 && dist2far >= 0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
-                       if (dist1near >= 0 && dist2near <  0 && dist1far <  0 && dist2far <  0){node = node->children[1];continue;}
-                       if (dist1near >= 0 && dist2near <  0 && dist1far <  0 && dist2far >= 0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
-                       if (dist1near >= 0 && dist2near <  0 && dist1far >= 0 && dist2far <  0){}
-                       if (dist1near >= 0 && dist2near <  0 && dist1far >= 0 && dist2far >= 0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
-                       if (dist1near >= 0 && dist2near >= 0 && dist1far <  0 && dist2far <  0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
-                       if (dist1near >= 0 && dist2near >= 0 && dist1far <  0 && dist2far >= 0){node = node->children[0];continue;}
-                       if (dist1near >= 0 && dist2near >= 0 && dist1far >= 0 && dist2far <  0){node = node->children[0];continue;}
-                       if (dist1near >= 0 && dist2near >= 0 && dist1far >= 0 && dist2far >= 0){node = node->children[0];continue;}
-                       {
-                               if (dist2near < 0) // d1n<0 && d2n<0
-                               {
-                                       if (dist2near < 0) // d1n<0 && d2n<0
-                                       {
-                                               if (dist2near < 0) // d1n<0 && d2n<0
-                                               {
-                                               }
-                                               else // d1n<0 && d2n>0
-                                               {
-                                               }
-                                       }
-                                       else // d1n<0 && d2n>0
-                                       {
-                                               if (dist2near < 0) // d1n<0 && d2n<0
-                                               {
-                                               }
-                                               else // d1n<0 && d2n>0
-                                               {
-                                               }
-                                       }
-                               }
-                               else // d1n<0 && d2n>0
-                               {
-                               }
-                       }
-                       else // d1n>0
-                       {
-                               if (dist2near < 0) // d1n>0 && d2n<0
-                               {
-                               }
-                               else // d1n>0 && d2n>0
-                               {
-                               }
-                       }
-                       if (dist1near < 0 == dist1far < 0 == dist2near < 0 == dist2far < 0)
-                       {
-                               node = node->children[startside];
-                               continue;
-                       }
-                       if (dist1near < dist2near)
-                       {
-                               // out
-                               if (dist1near >= 0)
-                               {
-                                       node = node->children[0];
-                                       continue;
-                               }
-                               if (dist2far < 0)
-                               {
-                                       node = node->children[1];
-                                       continue;
-                               }
-                               // dist1near < 0 && dist2far >= 0
-                       }
-                       else
-                       {
-                               // in
-                       }
-                       startside = dist1near < 0 ? (dist1far < 0 ? 1 : 2) : (dist1far < 0 ? 2 : 0);
-                       endside = dist2near < 0 ? (dist2far < 0 ? 1 : 2) : (dist2far < 0 ? 2 : 0);
-                       if (startside == 2 || endside == 2)
-                       {
-                               // brushes cross plane
-                               // do not clip anything, just take both sides
-                               Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-                               node = node->children[1];
-                       }
-                       else if (startside == endside)
-                               node = node->children[startside];
-                       else if (startside == 0) // endside = 1 (start infront, end behind)
-                       {
-                       }
-                       else // startside == 1 endside = 0 (start behind, end infront)
-                       {
-                       }
-                       == endside)
-                       {
-                               if (startside < 2)
-                                       node = node->children[startside];
-                               else
-                               {
-                                       // start and end brush cross plane
-                               }
-                       }
-                       else
-                       {
-                       }
-                       if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
-                               node = node->children[1];
-                       else if (dist1near < 0 && dist1far < 0 && dist2near >= 0 && dist2far >= 0)
-                       else if (dist1near >= 0 && dist1far >= 0 && dist2near < 0 && dist2far < 0)
-                       else if (dist1near >= 0 && dist1far >= 0 && dist2near >= 0 && dist2far >= 0)
-                               node = node->children[0];
-                       else
-                       if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
-                       if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
-                       if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
-                       if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
-                       if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
-                       {
-                       }
-                       else if (dist1near >= 0 && dist1far >= 0)
-                       {
-                       }
-                       else // mixed (lying on plane)
-                       {
-                       }
-                       {
-                               if (dist2near < 0 && dist2far < 0)
-                               {
-                               }
-                               else
-                                       node = node->children[1];
-                       }
-                       if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
-                               node = node->children[0];
-                       else if (dist1near >= 0 && dist1far >= 0 && dist2near >= 0 && dist2far >= 0)
-                               node = node->children[1];
-                       else
-                       {
-                               // both sides
-                               Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
-                               node = node->children[1];
-                       }
-                       sides = dist1near || dist1near < 0 | dist1far < 0 | dist2near < 0 | dist
-                       startside = dist1 < 0;
-                       endside = dist2 < 0;
-                       if (startside == endside)
-                       {
-                               // most of the time the line fragment is on one side of the plane
-                               node = node->children[startside];
-                       }
-                       else
-                       {
-                               // line crosses node plane, split the line
-                               midfrac = dist1 / (dist1 - dist2);
-                               VectorLerp(start, midfrac, end, mid);
-                               // take the near side first
-                               Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
-                               if (midfrac <= trace->fraction)
-                                       Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
-                               return;
-                       }
-               }
-       */
-#if 1
-       for (;;)
+       mplane_t *plane;
+       float nodesegmentmins[3], nodesegmentmaxs[3];
+       // walk the tree until we hit a leaf, recursing for any split cases
+       while (node->plane)
        {
-               mplane_t *plane = node->plane;
-               if (!plane)
-                       break;
+               // abort if this part of the bsp tree can not be hit by this trace
+//             if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
+//                     return;
+               plane = node->plane;
                // axial planes are much more common than non-axial, so an optimized
                // axial case pays off here
                if (plane->type < 3)
@@ -5327,172 +5739,37 @@ static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, model_t *model
                        // recurse down node sides
                        // use an inlined axial BoxOnPlaneSide to slightly reduce overhead
                        //sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, plane);
-                       sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
-                       if (sides == 3)
-                       {
-                               // segment box crosses plane
-                               Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-                               sides = 2;
-                       }
+                       //sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
+                       sides = ((segmentmaxs[plane->type] >= plane->dist) + ((segmentmins[plane->type] < plane->dist) * 2));
                }
                else
                {
-                       // this is a non-axial plane, entire trace bounding box
-                       // comparisons against it are likely to be very sloppy, so in if
-                       // the whole box is split by the plane we then test the start/end
-                       // boxes against it to be sure
-                       sides = BoxOnPlaneSide(segmentmins, segmentmaxs, plane);
-                       if (sides == 3)
-                       {
-                               // segment box crosses plane
-                               // now check start and end brush boxes to handle a lot of 'diagonal' cases more efficiently...
-                               sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
-                               if (sides == 3)
-                               {
-                                       Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-                                       sides = 2;
-                               }
-                       }
+                       // this is a non-axial plane, so check if the start and end boxes
+                       // are both on one side of the plane to handle 'diagonal' cases
+                       sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
                }
-               // take whichever side the segment box is on
-               node = node->children[sides - 1];
-       }
-       nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
-       nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
-       nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
-       nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
-       nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
-       nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
-#elif 1
-       for (;;)
-       {
-               nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
-               nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
-               nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
-               nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
-               nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
-               nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
-               if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
-                       return;
-               if (!node->plane)
-                       break;
-               Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-               node = node->children[1];
-       }
-#elif 0
-       // FIXME: could be made faster by copying TraceLine code and making it use
-       // box plane distances...  (variant on the BoxOnPlaneSide code)
-       for (;;)
-       {
-               nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
-               nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
-               nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
-               nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
-               nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
-               nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
-               if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
-                       return;
-               if (!node->plane)
-                       break;
-               if (mod_q3bsp_debugtracebrush.integer == 2)
+               if (sides == 3)
                {
-                       Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-                       node = node->children[1];
-                       continue;
-               }
-               else if (mod_q3bsp_debugtracebrush.integer == 1)
-               {
-                       // recurse down node sides
-                       sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
-                       if (sides == 3)
-                       {
-                               // segment box crosses plane
-                               Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-                               node = node->children[1];
-                               continue;
-                       }
-                       // take whichever side the segment box is on
-                       node = node->children[sides - 1];
-                       continue;
-               }
-               else
-               {
-                       // recurse down node sides
-                       sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
-                       if (sides == 3)
-                       {
-                               // segment box crosses plane
-                               // now check start and end brush boxes to handle a lot of 'diagonal' cases more efficiently...
-                               sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, node->plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, node->plane);
-                               if (sides == 3)
-                               {
-                                       Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-                                       node = node->children[1];
-                                       continue;
-                               }
-                       }
-                       // take whichever side the segment box is on
-                       node = node->children[sides - 1];
-                       continue;
-               }
-               return;
-       }
-#else
-       // FIXME: could be made faster by copying TraceLine code and making it use
-       // box plane distances...  (variant on the BoxOnPlaneSide code)
-       for (;;)
-       {
-               nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
-               nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
-               nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
-               nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
-               nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
-               nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
-               if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
-                       return;
-               if (!node->plane)
-                       break;
-               if (mod_q3bsp_debugtracebrush.integer == 2)
-               {
-                       Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-                       node = node->children[1];
-               }
-               else if (mod_q3bsp_debugtracebrush.integer == 1)
-               {
-                       // recurse down node sides
-                       sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
-                       if (sides == 3)
-                       {
-                               // segment box crosses plane
-                               Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-                               node = node->children[1];
-                       }
-                       else
-                       {
-                               // take whichever side the segment box is on
-                               node = node->children[sides - 1];
-                       }
-               }
-               else
-               {
-                       // recurse down node sides
-                       sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
-                       if (sides == 3)
-                       {
-                               // segment box crosses plane
-                               // now check start and end brush boxes to handle a lot of 'diagonal' cases more efficiently...
-                               sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, node->plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, node->plane);
-                               if (sides == 3)
-                               {
-                                       Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-                                       sides = 2;
-                               }
-                       }
-                       // take whichever side the segment box is on
-                       node = node->children[sides - 1];
+                       // segment crosses plane
+                       Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
+                       sides = 2;
                }
+               // if sides == 0 then the trace itself is bogus (Not A Number values),
+               // in this case we simply pretend the trace hit nothing
+               if (sides == 0)
+                       return; // ERROR: NAN bounding box!
+               // take whichever side the segment box is on
+               node = node->children[sides - 1];
        }
-#endif
+       // abort if this part of the bsp tree can not be hit by this trace
+//     if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
+//             return;
+       nodesegmentmins[0] = max(segmentmins[0], node->mins[0] - 1);
+       nodesegmentmins[1] = max(segmentmins[1], node->mins[1] - 1);
+       nodesegmentmins[2] = max(segmentmins[2], node->mins[2] - 1);
+       nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0] + 1);
+       nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1] + 1);
+       nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2] + 1);
        // hit a leaf
        leaf = (mleaf_t *)node;
        for (i = 0;i < leaf->numleafbrushes;i++)
@@ -5504,7 +5781,7 @@ static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, model_t *model
                        Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
                }
        }
-       if (mod_q3bsp_curves_collisions.integer)
+       if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer)
        {
                for (i = 0;i < leaf->numleafsurfaces;i++)
                {
@@ -5512,18 +5789,16 @@ static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, model_t *model
                        if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
                        {
                                surface->collisionmarkframe = markframe;
-                               Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
+                               Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
                        }
                }
        }
 }
 
-static void Mod_Q3BSP_TraceBox(model_t *model, int frame, trace_t *trace, const vec3_t boxstartmins, const vec3_t boxstartmaxs, const vec3_t boxendmins, const vec3_t boxendmaxs, int hitsupercontentsmask)
+static void Mod_Q3BSP_TraceBox(model_t *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
 {
        int i;
        float segmentmins[3], segmentmaxs[3];
-       colbrushf_t *thisbrush_start, *thisbrush_end;
-       matrix4x4_t startmatrix, endmatrix;
        static int markframe = 0;
        msurface_t *surface;
        q3mbrush_t *brush;
@@ -5531,50 +5806,60 @@ static void Mod_Q3BSP_TraceBox(model_t *model, int frame, trace_t *trace, const
        trace->fraction = 1;
        trace->realfraction = 1;
        trace->hitsupercontentsmask = hitsupercontentsmask;
-       Matrix4x4_CreateIdentity(&startmatrix);
-       Matrix4x4_CreateIdentity(&endmatrix);
-       segmentmins[0] = min(boxstartmins[0], boxendmins[0]);
-       segmentmins[1] = min(boxstartmins[1], boxendmins[1]);
-       segmentmins[2] = min(boxstartmins[2], boxendmins[2]);
-       segmentmaxs[0] = max(boxstartmaxs[0], boxendmaxs[0]);
-       segmentmaxs[1] = max(boxstartmaxs[1], boxendmaxs[1]);
-       segmentmaxs[2] = max(boxstartmaxs[2], boxendmaxs[2]);
-       if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(boxstartmins, boxstartmaxs) && VectorCompare(boxendmins, boxendmaxs))
-       {
-               if (VectorCompare(boxstartmins, boxendmins))
+       if (mod_q3bsp_optimizedtraceline.integer && VectorLength2(boxmins) + VectorLength2(boxmaxs) == 0)
+       {
+               if (VectorCompare(start, end))
                {
                        // point trace
                        if (model->brush.submodel)
                        {
                                for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
                                        if (brush->colbrushf)
-                                               Collision_TracePointBrushFloat(trace, boxstartmins, brush->colbrushf);
+                                               Collision_TracePointBrushFloat(trace, start, brush->colbrushf);
                        }
                        else
-                               Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, boxstartmins, ++markframe);
+                               Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, ++markframe);
                }
                else
                {
                        // line trace
+                       segmentmins[0] = min(start[0], end[0]) - 1;
+                       segmentmins[1] = min(start[1], end[1]) - 1;
+                       segmentmins[2] = min(start[2], end[2]) - 1;
+                       segmentmaxs[0] = max(start[0], end[0]) + 1;
+                       segmentmaxs[1] = max(start[1], end[1]) + 1;
+                       segmentmaxs[2] = max(start[2], end[2]) + 1;
                        if (model->brush.submodel)
                        {
                                for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
                                        if (brush->colbrushf)
-                                               Collision_TraceLineBrushFloat(trace, boxstartmins, boxendmins, brush->colbrushf, brush->colbrushf);
+                                               Collision_TraceLineBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
                                if (mod_q3bsp_curves_collisions.integer)
                                        for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
                                                if (surface->num_collisiontriangles)
-                                                       Collision_TraceLineTriangleMeshFloat(trace, boxstartmins, boxendmins, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
+                                                       Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
                        }
                        else
-                               Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, boxstartmins, boxendmins, 0, 1, boxstartmins, boxendmins, ++markframe, segmentmins, segmentmaxs);
+                               Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, 0, 1, start, end, ++markframe, segmentmins, segmentmaxs);
                }
        }
        else
        {
                // box trace, performed as brush trace
-               thisbrush_start = Collision_BrushForBox(&startmatrix, boxstartmins, boxstartmaxs);
-               thisbrush_end = Collision_BrushForBox(&endmatrix, boxendmins, boxendmaxs);
+               colbrushf_t *thisbrush_start, *thisbrush_end;
+               vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
+               segmentmins[0] = min(start[0], end[0]) + boxmins[0] - 1;
+               segmentmins[1] = min(start[1], end[1]) + boxmins[1] - 1;
+               segmentmins[2] = min(start[2], end[2]) + boxmins[2] - 1;
+               segmentmaxs[0] = max(start[0], end[0]) + boxmaxs[0] + 1;
+               segmentmaxs[1] = max(start[1], end[1]) + boxmaxs[1] + 1;
+               segmentmaxs[2] = max(start[2], end[2]) + boxmaxs[2] + 1;
+               VectorAdd(start, boxmins, boxstartmins);
+               VectorAdd(start, boxmaxs, boxstartmaxs);
+               VectorAdd(end, boxmins, boxendmins);
+               VectorAdd(end, boxmaxs, boxendmaxs);
+               thisbrush_start = Collision_BrushForBox(&identitymatrix, boxstartmins, boxstartmaxs, 0, 0, NULL);
+               thisbrush_end = Collision_BrushForBox(&identitymatrix, boxendmins, boxendmaxs, 0, 0, NULL);
                if (model->brush.submodel)
                {
                        for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
@@ -5583,7 +5868,7 @@ static void Mod_Q3BSP_TraceBox(model_t *model, int frame, trace_t *trace, const
                        if (mod_q3bsp_curves_collisions.integer)
                                for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
                                        if (surface->num_collisiontriangles)
-                                               Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
+                                               Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
                }
                else
                        Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
@@ -5681,6 +5966,7 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
 
        mod->soundfromcenter = true;
        mod->TraceBox = Mod_Q3BSP_TraceBox;
+       mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
        mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
        mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
        mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
@@ -5709,6 +5995,18 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
                header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
        }
 
+       mod->brush.qw_md4sum = 0;
+       mod->brush.qw_md4sum2 = 0;
+       for (i = 0;i < Q3HEADER_LUMPS;i++)
+       {
+               if (i == Q3LUMP_ENTITIES)
+                       continue;
+               mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
+               if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
+                       continue;
+               mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
+       }
+
        Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
        Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
        Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
@@ -5717,7 +6015,7 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
        Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
        Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
        Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
-       Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS]);
+       Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS], &header->lumps[Q3LUMP_FACES]);
        Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
        Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
        Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
@@ -5731,6 +6029,9 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
        // the MakePortals code works fine on the q3bsp data as well
        Mod_Q1BSP_MakePortals();
 
+       // FIXME: shader alpha should replace r_wateralpha support in q3bsp
+       loadmodel->brush.supportwateralpha = true;
+
        // make a single combined shadow mesh to allow optimized shadow volume creation
        numshadowmeshtriangles = 0;
        for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
@@ -5740,9 +6041,9 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
        }
        loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
        for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
-               if (surface->groupmesh)
-                       Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, surface->groupmesh->data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
-       loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
+               if (surface->num_triangles > 0)
+                       Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, loadmodel->surfmesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
+       loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true, false);
        Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
 
        loadmodel->brush.num_leafs = 0;
@@ -5771,10 +6072,11 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
                        sprintf(name, "*%i", i);
                        mod = Mod_FindName(name);
                        *mod = *loadmodel;
-                       strcpy(mod->name, name);
+                       strlcpy(mod->name, name, sizeof(mod->name));
                        // textures and memory belong to the main model
                        mod->texturepool = NULL;
                        mod->mempool = NULL;
+                       mod->brush.TraceLineOfSight = NULL;
                        mod->brush.GetPVS = NULL;
                        mod->brush.FatPVS = NULL;
                        mod->brush.BoxTouchingPVS = NULL;
@@ -5816,6 +6118,8 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
                                break;
                if (j < mod->nummodelsurfaces)
                        mod->DrawSky = R_Q1BSP_DrawSky;
+               else
+                       mod->DrawSky = NULL;
        }
 }
 
@@ -5835,3 +6139,39 @@ void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
        Host_Error("Mod_MAP_Load: not yet implemented");
 }
 
+qboolean Mod_CanSeeBox_Trace(int numsamples, float t, model_t *model, vec3_t eye, vec3_t minsX, vec3_t maxsX)
+{
+       // we already have done PVS culling at this point...
+       // so we don't need to do it again.
+
+       int i;
+       vec3_t testorigin, mins, maxs;
+
+       testorigin[0] = (minsX[0] + maxsX[0]) * 0.5;
+       testorigin[1] = (minsX[1] + maxsX[1]) * 0.5;
+       testorigin[2] = (minsX[2] + maxsX[2]) * 0.5;
+
+       if(model->brush.TraceLineOfSight(model, eye, testorigin))
+               return 1;
+
+       // expand the box a little
+       mins[0] = (t+1) * minsX[0] - t * maxsX[0];
+       maxs[0] = (t+1) * maxsX[0] - t * minsX[0];
+       mins[1] = (t+1) * minsX[1] - t * maxsX[1];
+       maxs[1] = (t+1) * maxsX[1] - t * minsX[1];
+       mins[2] = (t+1) * minsX[2] - t * maxsX[2];
+       maxs[2] = (t+1) * maxsX[2] - t * minsX[2];
+
+       for(i = 0; i != numsamples; ++i)
+       {
+               testorigin[0] = lhrandom(mins[0], maxs[0]);
+               testorigin[1] = lhrandom(mins[1], maxs[1]);
+               testorigin[2] = lhrandom(mins[2], maxs[2]);
+
+               if(model->brush.TraceLineOfSight(model, eye, testorigin))
+                       return 1;
+       }
+
+       return 0;
+}
+