]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - model_brush.c
experimental (not yet tested) support for q3map2 -lightmapsize written external highe...
[xonotic/darkplaces.git] / model_brush.c
index 0b1293ae336bbf217c8455037efe7ad833169e90..2aea6f858bcacc886f9d3382eef556cc056c0a5e 100644 (file)
@@ -28,9 +28,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 //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_picmipworld = {CVAR_SAVE, "r_picmipworld", "1", "whether gl_picmip shall apply to world textures too"};
 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)"};
@@ -56,9 +54,7 @@ void Mod_BrushInit(void)
 {
 //     Cvar_RegisterVariable(&r_subdivide_size);
        Cvar_RegisterVariable(&halflifebsp);
-       Cvar_RegisterVariable(&mcbsp);
        Cvar_RegisterVariable(&r_novis);
-       Cvar_RegisterVariable(&r_lightmaprgba);
        Cvar_RegisterVariable(&r_picmipworld);
        Cvar_RegisterVariable(&r_nosurftextures);
        Cvar_RegisterVariable(&r_subdivisions_tolerance);
@@ -100,7 +96,7 @@ void Mod_BrushInit(void)
        mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
 }
 
-static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
+static mleaf_t *Mod_Q1BSP_PointInLeaf(dp_model_t *model, const vec3_t p)
 {
        mnode_t *node;
 
@@ -116,7 +112,7 @@ static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
        return (mleaf_t *)node;
 }
 
-static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, unsigned char *out, int outsize)
+static void Mod_Q1BSP_AmbientSoundLevelsForPoint(dp_model_t *model, const vec3_t p, unsigned char *out, int outsize)
 {
        int i;
        mleaf_t *leaf;
@@ -135,7 +131,7 @@ static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p,
                memset(out, 0, outsize);
 }
 
-static int Mod_Q1BSP_FindBoxClusters(model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
+static int Mod_Q1BSP_FindBoxClusters(dp_model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
 {
        int numclusters = 0;
        int nodestackindex = 0;
@@ -201,7 +197,7 @@ static int Mod_Q1BSP_FindBoxClusters(model_t *model, const vec3_t mins, const ve
        return numclusters;
 }
 
-static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
+static int Mod_Q1BSP_BoxTouchingPVS(dp_model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
 {
        int nodestackindex = 0;
        mnode_t *node, *nodestack[1024];
@@ -272,7 +268,7 @@ static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const unsigned char *pvs, co
        return false;
 }
 
-static int Mod_Q1BSP_BoxTouchingLeafPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
+static int Mod_Q1BSP_BoxTouchingLeafPVS(dp_model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
 {
        int nodestackindex = 0;
        mnode_t *node, *nodestack[1024];
@@ -343,7 +339,7 @@ static int Mod_Q1BSP_BoxTouchingLeafPVS(model_t *model, const unsigned char *pvs
        return false;
 }
 
-static int Mod_Q1BSP_BoxTouchingVisibleLeafs(model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
+static int Mod_Q1BSP_BoxTouchingVisibleLeafs(dp_model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
 {
        int nodestackindex = 0;
        mnode_t *node, *nodestack[1024];
@@ -418,7 +414,7 @@ typedef struct findnonsolidlocationinfo_s
        vec_t radius;
        vec3_t nudge;
        vec_t bestdist;
-       model_t *model;
+       dp_model_t *model;
 }
 findnonsolidlocationinfo_t;
 
@@ -537,7 +533,7 @@ static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, m
        }
 }
 
-static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
+static void Mod_Q1BSP_FindNonSolidLocation(dp_model_t *model, const vec3_t in, vec3_t out, float radius)
 {
        int i;
        findnonsolidlocationinfo_t info;
@@ -561,7 +557,7 @@ static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3
        VectorCopy(info.center, out);
 }
 
-int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
+int Mod_Q1BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents)
 {
        switch(nativecontents)
        {
@@ -581,7 +577,7 @@ int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents
        return 0;
 }
 
-int Mod_Q1BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
+int Mod_Q1BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents)
 {
        if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
                return CONTENTS_SOLID;
@@ -785,8 +781,16 @@ loc0:
 //#if COLLISIONPARANOID < 2
 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
 {
+       mplane_t *plane;
+       mclipnode_t *nodes = t->hull->clipnodes;
+       mplane_t *planes = t->hull->planes;
+       vec3_t point;
+       VectorCopy(t->start, point);
        while (num >= 0)
-               num = t->hull->clipnodes[num].children[(t->hull->planes[t->hull->clipnodes[num].planenum].type < 3 ? t->start[t->hull->planes[t->hull->clipnodes[num].planenum].type] : DotProduct(t->hull->planes[t->hull->clipnodes[num].planenum].normal, t->start)) < t->hull->planes[t->hull->clipnodes[num].planenum].dist];
+       {
+               plane = planes + nodes[num].planenum;
+               num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
+       }
        num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
        t->trace->startsupercontents |= num;
        if (num & SUPERCONTENTS_LIQUIDSMASK)
@@ -822,29 +826,6 @@ static void Mod_Q1BSP_TraceBox(struct model_s *model, int frame, trace_t *trace,
        VectorSubtract(boxmaxs, boxmins, boxsize);
        if (boxsize[0] < 3)
                rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
-       else if (model->brush.ismcbsp)
-       {
-               int i;
-               float vdist, dist;
-               int vdisti = 0;
-
-               vdist = 0;      // shut up compiler warning
-
-       // find the closest hull size (this algorithm probably sucks, a qc field to override it might be in order...)
-               for (i = 1; i < model->brushq1.numhulls; i++)
-               {
-                       dist = fabs(model->brushq1.hulls[i].clip_size[0] - boxsize[0]) +
-                                       fabs(model->brushq1.hulls[i].clip_size[1] - boxsize[1]) +
-                                       fabs(model->brushq1.hulls[i].clip_size[2] - boxsize[2]) * 0.25;
-
-                       if (!vdisti || dist < vdist)
-                       {
-                               vdisti = i;
-                               vdist = dist;
-                       }
-               }
-               rhc.hull = &model->brushq1.hulls[vdisti];
-       }
        else if (model->brush.ishlbsp)
        {
                // LordHavoc: this has to have a minor tolerance (the .1) because of
@@ -902,6 +883,20 @@ static void Mod_Q1BSP_TraceBox(struct model_s *model, int frame, trace_t *trace,
 #endif
 }
 
+static int Mod_Q1BSP_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
+{
+       int num = model->brushq1.hulls[0].firstclipnode;
+       mplane_t *plane;
+       mclipnode_t *nodes = model->brushq1.hulls[0].clipnodes;
+       mplane_t *planes = model->brushq1.hulls[0].planes;
+       while (num >= 0)
+       {
+               plane = planes + nodes[num].planenum;
+               num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
+       }
+       return Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
+}
+
 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
@@ -1076,7 +1071,7 @@ static qboolean Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t s
        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)
+static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(dp_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;
        float front, back;
@@ -1127,8 +1122,14 @@ loc0:
                // check for impact on this node
                if (node->numsurfaces)
                {
-                       int i, ds, dt;
+                       int i, dsi, dti, lmwidth, lmheight;
+                       float ds, dt;
                        msurface_t *surface;
+                       unsigned char *lightmap;
+                       int maps, line3, size3;
+                       float dsfrac;
+                       float dtfrac;
+                       float scale, w, w00, w01, w10, w11;
 
                        surface = model->data_surfaces + node->firstsurface;
                        for (i = 0;i < node->numsurfaces;i++, surface++)
@@ -1136,66 +1137,46 @@ loc0:
                                if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo->samples)
                                        continue;       // no lightmaps
 
-                               ds = (int) (x * surface->lightmapinfo->texinfo->vecs[0][0] + y * surface->lightmapinfo->texinfo->vecs[0][1] + mid * surface->lightmapinfo->texinfo->vecs[0][2] + surface->lightmapinfo->texinfo->vecs[0][3]) - surface->lightmapinfo->texturemins[0];
-                               dt = (int) (x * surface->lightmapinfo->texinfo->vecs[1][0] + y * surface->lightmapinfo->texinfo->vecs[1][1] + mid * surface->lightmapinfo->texinfo->vecs[1][2] + surface->lightmapinfo->texinfo->vecs[1][3]) - surface->lightmapinfo->texturemins[1];
+                               // location we want to sample in the lightmap
+                               ds = ((x * surface->lightmapinfo->texinfo->vecs[0][0] + y * surface->lightmapinfo->texinfo->vecs[0][1] + mid * surface->lightmapinfo->texinfo->vecs[0][2] + surface->lightmapinfo->texinfo->vecs[0][3]) - surface->lightmapinfo->texturemins[0]) * 0.0625f;
+                               dt = ((x * surface->lightmapinfo->texinfo->vecs[1][0] + y * surface->lightmapinfo->texinfo->vecs[1][1] + mid * surface->lightmapinfo->texinfo->vecs[1][2] + surface->lightmapinfo->texinfo->vecs[1][3]) - surface->lightmapinfo->texturemins[1]) * 0.0625f;
 
-                               if (ds >= 0 && ds < surface->lightmapinfo->extents[0] && dt >= 0 && dt < surface->lightmapinfo->extents[1])
+                               // check the bounds
+                               dsi = (int)ds;
+                               dti = (int)dt;
+                               lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
+                               lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
+
+                               // is it in bounds?
+                               if (dsi >= 0 && dsi < lmwidth-1 && dti >= 0 && dti < lmheight-1)
                                {
-                                       unsigned char *lightmap;
-                                       int lmwidth, lmheight, maps, line3, size3, dsfrac = ds & 15, dtfrac = dt & 15, scale = 0, r00 = 0, g00 = 0, b00 = 0, r01 = 0, g01 = 0, b01 = 0, r10 = 0, g10 = 0, b10 = 0, r11 = 0, g11 = 0, b11 = 0;
-                                       lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
-                                       lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
+                                       // calculate bilinear interpolation factors
+                                       // and also multiply by fixedpoint conversion factors
+                                       dsfrac = ds - dsi;
+                                       dtfrac = dt - dti;
+                                       w00 = (1 - dsfrac) * (1 - dtfrac) * (1.0f / 32768.0f);
+                                       w01 = (    dsfrac) * (1 - dtfrac) * (1.0f / 32768.0f);
+                                       w10 = (1 - dsfrac) * (    dtfrac) * (1.0f / 32768.0f);
+                                       w11 = (    dsfrac) * (    dtfrac) * (1.0f / 32768.0f);
+
+                                       // values for pointer math
                                        line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
                                        size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
 
-                                       lightmap = surface->lightmapinfo->samples + ((dt>>4) * lmwidth + (ds>>4))*3; // LordHavoc: *3 for colored lighting
+                                       // look up the pixel
+                                       lightmap = surface->lightmapinfo->samples + dti * line3 + dsi*3; // LordHavoc: *3 for colored lighting
 
+                                       // bilinear filter each lightmap style, and sum them
                                        for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
                                        {
-                                               scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]];
-                                               r00 += lightmap[      0] * scale;g00 += lightmap[      1] * scale;b00 += lightmap[      2] * scale;
-                                               r01 += lightmap[      3] * scale;g01 += lightmap[      4] * scale;b01 += lightmap[      5] * scale;
-                                               r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
-                                               r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
+                                               scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[maps]];
+                                               w = w00 * scale;VectorMA(ambientcolor, w, lightmap            , ambientcolor);
+                                               w = w01 * scale;VectorMA(ambientcolor, w, lightmap + 3        , ambientcolor);
+                                               w = w10 * scale;VectorMA(ambientcolor, w, lightmap + line3    , ambientcolor);
+                                               w = w11 * scale;VectorMA(ambientcolor, w, lightmap + line3 + 3, ambientcolor);
                                                lightmap += size3;
                                        }
 
-/*
-LordHavoc: here's the readable version of the interpolation
-code, not quite as easy for the compiler to optimize...
-
-dsfrac is the X position in the lightmap pixel, * 16
-dtfrac is the Y position in the lightmap pixel, * 16
-r00 is top left corner, r01 is top right corner
-r10 is bottom left corner, r11 is bottom right corner
-g and b are the same layout.
-r0 and r1 are the top and bottom intermediate results
-
-first we interpolate the top two points, to get the top
-edge sample
-
-       r0 = (((r01-r00) * dsfrac) >> 4) + r00;
-       g0 = (((g01-g00) * dsfrac) >> 4) + g00;
-       b0 = (((b01-b00) * dsfrac) >> 4) + b00;
-
-then we interpolate the bottom two points, to get the
-bottom edge sample
-
-       r1 = (((r11-r10) * dsfrac) >> 4) + r10;
-       g1 = (((g11-g10) * dsfrac) >> 4) + g10;
-       b1 = (((b11-b10) * dsfrac) >> 4) + b10;
-
-then we interpolate the top and bottom samples to get the
-middle sample (the one which was requested)
-
-       r = (((r1-r0) * dtfrac) >> 4) + r0;
-       g = (((g1-g0) * dtfrac) >> 4) + g0;
-       b = (((b1-b0) * dtfrac) >> 4) + b0;
-*/
-
-                                       ambientcolor[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f);
-                                       ambientcolor[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f);
-                                       ambientcolor[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 32768.0f);
                                        return true; // success
                                }
                        }
@@ -1209,7 +1190,7 @@ 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)
+void Mod_Q1BSP_LightPoint(dp_model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
 {
        // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
        VectorSet(diffusenormal, 0, 0, 1);
@@ -1274,14 +1255,6 @@ void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesp
        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;
-               return;
-       }
-
        if (bytesperpixel == 4)
        {
                for (i = 0;i < 128;i++)
@@ -1303,34 +1276,35 @@ void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesp
                        unsigned int i;
                        unsigned char b[4];
                }
-               rgba;
+               bgra;
                r = g = b = 0;
                for (i = 0;i < 128;i++)
                {
                        for (j = 0;j < 128;j++)
                        {
-                               rgba.i = palette_complete[src[i*256 + j + 128]];
-                               r += rgba.b[0];
-                               g += rgba.b[1];
-                               b += rgba.b[2];
+                               p = src[i*256 + j + 128];
+                               r += palette_rgb[p][0];
+                               g += palette_rgb[p][1];
+                               b += palette_rgb[p][2];
                        }
                }
-               rgba.b[0] = r/(128*128);
-               rgba.b[1] = g/(128*128);
-               rgba.b[2] = b/(128*128);
-               rgba.b[3] = 0;
+               bgra.b[2] = r/(128*128);
+               bgra.b[1] = g/(128*128);
+               bgra.b[0] = b/(128*128);
+               bgra.b[3] = 0;
                for (i = 0;i < 128;i++)
                {
                        for (j = 0;j < 128;j++)
                        {
-                               solidpixels[(i*128) + j] = palette_complete[src[i*256 + j + 128]];
-                               alphapixels[(i*128) + j] = (p = src[i*256 + j]) ? palette_complete[p] : rgba.i;
+                               solidpixels[(i*128) + j] = palette_bgra_complete[src[i*256 + j + 128]];
+                               p = src[i*256 + j];
+                               alphapixels[(i*128) + j] = p ? palette_bgra_complete[p] : bgra.i;
                        }
                }
        }
 
-       loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (unsigned char *) solidpixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
-       loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (unsigned char *) alphapixels, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
+       loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (unsigned char *) solidpixels, TEXTYPE_BGRA, TEXF_PRECACHE, NULL);
+       loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (unsigned char *) alphapixels, TEXTYPE_BGRA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
 }
 
 static void Mod_Q1BSP_LoadTextures(lump_t *l)
@@ -1343,6 +1317,9 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
        unsigned char *data, *mtdata;
        const char *s;
        char mapname[MAX_QPATH], name[MAX_QPATH];
+       unsigned char zero[4];
+
+       memset(zero, 0, sizeof(zero));
 
        loadmodel->data_textures = NULL;
 
@@ -1381,15 +1358,15 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
                        tx->currentskinframe = tx->skinframes[0];
                        tx->basematerialflags = 0;
                }
+               tx->basematerialflags = MATERIALFLAG_WALL;
                if (i == loadmodel->num_textures - 1)
                {
-                       tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
+                       tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | 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 = mod_q1bsp_texture_solid.supercontents;
                        tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
                }
@@ -1402,6 +1379,7 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
                Vector4Set(tx->refractcolor4f, 1, 1, 1, 1);
                tx->reflectfactor = 1;
                Vector4Set(tx->reflectcolor4f, 1, 1, 1, 1);
+               tx->r_water_wateralpha = 1;
        }
 
        if (!m)
@@ -1433,13 +1411,13 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
                // copy name, but only up to 16 characters
                // (the output buffer can hold more than this, but the input buffer is
                //  only 16)
-               for (j = 0;dmiptex->name[j] && j < 16;j++)
+               for (j = 0;j < 16 && dmiptex->name[j];j++)
                        name[j] = dmiptex->name[j];
                name[j] = 0;
 
                if (!name[0])
                {
-                       sprintf(name, "unnamed%i", i);
+                       dpsnprintf(name, sizeof(name), "unnamed%i", i);
                        Con_DPrintf("%s: warning: renaming unnamed texture to %s\n", loadmodel->name, name);
                }
 
@@ -1466,7 +1444,7 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
                        if (name[j] >= 'A' && name[j] <= 'Z')
                                name[j] += 'a' - 'A';
 
-               if (dmiptex->name[0] && Mod_LoadTextureFromQ3Shader(loadmodel->data_textures + i, name, true, false, false))
+               if (dmiptex->name[0] && Mod_LoadTextureFromQ3Shader(loadmodel->data_textures + i, name, false, false, 0))
                        continue;
 
                tx = loadmodel->data_textures + i;
@@ -1510,8 +1488,8 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
                        {
                                if (loadmodel->isworldmodel)
                                {
-                                       data = loadimagepixels(tx->name, false, 0, 0);
-                                       if (data)
+                                       data = loadimagepixelsbgra(tx->name, false, false);
+                                       if (data && image_width == 256 && image_height == 128)
                                        {
                                                R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
                                                Mem_Free(data);
@@ -1522,9 +1500,9 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
                        }
                        else
                        {
-                               skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s/%s", mapname, tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS, false);
+                               skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s/%s", mapname, tx->name), TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS, false);
                                if (!skinframe)
-                                       skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s", tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS, false);
+                                       skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s", tx->name), TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS, false);
                                if (!skinframe)
                                {
                                        // did not find external texture, load it from the bsp or wad3
@@ -1534,41 +1512,57 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
                                                unsigned char *pixels, *freepixels;
                                                pixels = freepixels = NULL;
                                                if (mtdata)
-                                                       pixels = W_ConvertWAD3Texture(dmiptex);
+                                                       pixels = W_ConvertWAD3TextureBGRA(dmiptex);
                                                if (pixels == NULL)
-                                                       pixels = freepixels = W_GetTexture(tx->name);
+                                                       pixels = freepixels = W_GetTextureBGRA(tx->name);
                                                if (pixels != NULL)
                                                {
                                                        tx->width = image_width;
                                                        tx->height = image_height;
-                                                       skinframe = R_SkinFrame_LoadInternal(tx->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), false, false, pixels, image_width, image_height, 32, NULL, NULL);
+                                                       skinframe = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), pixels, image_width, image_height);
                                                }
                                                if (freepixels)
                                                        Mem_Free(freepixels);
                                        }
                                        else if (mtdata) // texture included
-                                               skinframe = R_SkinFrame_LoadInternal(tx->name, TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), false, r_fullbrights.integer, mtdata, tx->width, tx->height, 8, NULL, NULL);
+                                               skinframe = R_SkinFrame_LoadInternalQuake(tx->name, TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), false, 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;
                        }
 
-                       tx->basematerialflags = 0;
+                       tx->basematerialflags = MATERIALFLAG_WALL;
                        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 | MATERIALFLAG_WATERSHADER;
-                               tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
+                               if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
+                               {
+                                       // replace the texture with transparent black
+                                       Vector4Set(zero, 128, 128, 128, 128);
+                                       tx->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_MIPMAP | TEXF_PRECACHE | TEXF_ALPHA, zero, 1, 1);
+                                       tx->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_REFLECTION;
+                               }
+                               else if (!strncmp(tx->name,"*lava",5)
+                                || !strncmp(tx->name,"*teleport",9)
+                                || !strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
+                                       tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
+                               else
+                                       tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW | MATERIALFLAG_WATERALPHA | MATERIALFLAG_WATERSHADER;
+                               if (tx->skinframes[0] && tx->skinframes[0]->fog)
+                                       tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
+                       }
+                       else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
+                       {
+                               // replace the texture with black
+                               tx->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_PRECACHE, zero, 1, 1);
+                               tx->basematerialflags |= MATERIALFLAG_REFLECTION;
                        }
                        else if (!strncmp(tx->name, "sky", 3))
-                               tx->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
-                       else
-                               tx->basematerialflags |= MATERIALFLAG_WALL;
-                       if (tx->skinframes[0] && tx->skinframes[0]->fog)
+                               tx->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
+                       else if (!strcmp(tx->name, "caulk"))
+                               tx->basematerialflags = MATERIALFLAG_NODRAW;
+                       else if (tx->skinframes[0] && tx->skinframes[0]->fog)
                                tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
 
                        // start out with no animation
@@ -1692,11 +1686,6 @@ static void Mod_Q1BSP_LoadLighting(lump_t *l)
                for (i=0; i<l->filelen; i++)
                        loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
        }
-       else if (loadmodel->brush.ismcbsp)
-       {
-               loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
-               memcpy(loadmodel->brushq1.lightdata, mod_base + l->fileofs, l->filelen);
-       }
        else // LordHavoc: bsp version 29 (normal white lighting)
        {
                // LordHavoc: hope is not lost yet, check for a .lit file to load
@@ -1713,7 +1702,8 @@ static void Mod_Q1BSP_LoadLighting(lump_t *l)
                                i = LittleLong(((int *)data)[1]);
                                if (i == 1)
                                {
-                                       Con_DPrintf("loaded %s\n", litfilename);
+                                       if (developer_loading.integer)
+                                               Con_Printf("loaded %s\n", litfilename);
                                        loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
                                        memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
                                        Mem_Free(data);
@@ -1725,7 +1715,8 @@ static void Mod_Q1BSP_LoadLighting(lump_t *l)
                                                        i = LittleLong(((int *)data)[1]);
                                                        if (i == 1)
                                                        {
-                                                               Con_DPrintf("loaded %s\n", dlitfilename);
+                                                               if (developer_loading.integer)
+                                                                       Con_Printf("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;
@@ -1996,7 +1987,7 @@ static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
                {
                        // if texture chosen is NULL or the shader needs a lightmap,
                        // force to notexture water shader
-                       if (out->texture == NULL || out->texture->basematerialflags & MATERIALFLAG_WALL)
+                       if (out->texture == NULL)
                                out->texture = loadmodel->data_textures + (loadmodel->num_textures - 1);
                }
                else
@@ -2160,34 +2151,67 @@ 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)
+/* Maximum size of a single LM */
+#define MAX_SINGLE_LM_SIZE    256
+
+struct alloc_lm_row
+{
+       int rowY;
+       int currentX;
+};
+
+struct alloc_lm_state
 {
-       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
+       int currentY;
+       struct alloc_lm_row rows[MAX_SINGLE_LM_SIZE];
+};
+
+static void init_alloc_lm_state (struct alloc_lm_state* state)
+{
+       int r;
+
+       state->currentY = 0;
+       for (r = 0; r < MAX_SINGLE_LM_SIZE; r++)
+       {
+         state->rows[r].currentX = 0;
+         state->rows[r].rowY = -1;
+       }
+}
+
+static qboolean Mod_Q1BSP_AllocLightmapBlock(struct alloc_lm_state* state, int totalwidth, int totalheight, int blockwidth, int blockheight, int *outx, int *outy)
+{
+       struct alloc_lm_row* row;
+       int r;
+
+       row = &(state->rows[blockheight]);
+       if ((row->rowY < 0) || (row->currentX + blockwidth > totalwidth))
+       {
+               if (state->currentY + blockheight <= totalheight)
+               {
+                       row->rowY = state->currentY;
+                       row->currentX = 0;
+                       state->currentY += blockheight;
+               }
+               else
+               {
+                       /* See if we can stuff the block into a higher row */
+                       row = NULL;
+                       for (r = blockheight; r < MAX_SINGLE_LM_SIZE; r++)
+                       {
+                               if ((state->rows[r].rowY >= 0)
+                                 && (state->rows[r].currentX + blockwidth <= totalwidth))
+                               {
+                                       row = &(state->rows[r]);
+                                       break;
+                               }
+                       }
+                       if (row == NULL) return false;
+               }
+       }
+       *outy = row->rowY;
+       *outx = row->currentX;
+       row->currentX += blockwidth;
+
        return true;
 }
 
@@ -2198,9 +2222,7 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
        msurface_t *surface;
        int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber, lightmapsize, totallightmapsamples;
        float texmins[2], texmaxs[2], val;
-#define LIGHTMAPSIZE 1024
        rtexture_t *lightmaptexture, *deluxemaptexture;
-       int lightmap_lineused[LIGHTMAPSIZE];
 
        in = (dface_t *)(mod_base + l->fileofs);
        if (l->filelen % sizeof(*in))
@@ -2211,6 +2233,8 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
 
        loadmodel->num_surfaces = count;
 
+       loadmodel->brushq1.lightmapupdateflags = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*sizeof(unsigned char));
+
        totalverts = 0;
        totaltris = 0;
        for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
@@ -2225,7 +2249,7 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
        lightmaptexture = NULL;
        deluxemaptexture = r_texture_blanknormalmap;
        lightmapnumber = 1;
-       lightmapsize = bound(256, gl_max_size.integer, LIGHTMAPSIZE);
+       lightmapsize = max(256, gl_max_size.integer);
        totallightmapsamples = 0;
 
        totalverts = 0;
@@ -2324,7 +2348,7 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
                {
                        surface->lightmapinfo->samples = NULL;
                        // give non-lightmapped water a 1x white lightmap
-                       if ((surface->texture->basematerialflags & MATERIALFLAG_WATER) && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
+                       if (surface->texture->name[0] == '*' && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
                        {
                                surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
                                surface->lightmapinfo->styles[0] = 0;
@@ -2358,7 +2382,7 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
                        // additionally this is used by the later code to see if a
                        // lightmap is needed on this surface (rather than duplicating the
                        // logic above)
-                       surface->cached_dlight = true;
+                       loadmodel->brushq1.lightmapupdateflags[surfacenum] = true;
                }
        }
 
@@ -2369,71 +2393,91 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
        // store
        // additionally, never choose a lightmapsize that is smaller than the
        // largest surface encountered (as it would fail)
-       // and finally, limit it to the size of our lineused array
        i = lightmapsize;
-       for (lightmapsize = 64;lightmapsize < LIGHTMAPSIZE && (lightmapsize < i || (lightmapsize < gl_max_size.integer && totallightmapsamples*2 > lightmapsize*lightmapsize));lightmapsize*=2)
+       for (lightmapsize = 64; (lightmapsize < i) && (lightmapsize < gl_max_size.integer) && (totallightmapsamples > lightmapsize*lightmapsize); lightmapsize*=2)
                ;
 
        // now that we've decided the lightmap texture size, we can do the rest
        if (cls.state != ca_dedicated)
        {
+               struct alloc_lm_state allocState;
+
                for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
                {
-                       // check if we should apply a lightmap to this
-                       if (surface->cached_dlight)
-                       {
-                               int i, iu, iv, lightmapx, lightmapy;
-                               float u, v, ubase, vbase, uscale, vscale;
+                       int i, iu, iv, lightmapx = 0, lightmapy = 0;
+                       float u, v, ubase, vbase, uscale, vscale;
 
-                               smax = surface->lightmapinfo->extents[0] >> 4;
-                               tmax = surface->lightmapinfo->extents[1] >> 4;
-                               ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
-                               tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
+                       smax = surface->lightmapinfo->extents[0] >> 4;
+                       tmax = surface->lightmapinfo->extents[1] >> 4;
+                       ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
+                       tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 
-                               // 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 (!lightmaptexture || !Mod_Q1BSP_AllocLightmapBlock(&allocState, lightmapsize, lightmapsize, ssize, tsize, &lightmapx, &lightmapy))
+                       {
+                               // allocate a texture pool if we need it
+                               if (loadmodel->texturepool == NULL)
+                                       loadmodel->texturepool = R_AllocTexturePool();
+                               // could not find room, make a new lightmap
+                               lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%i", lightmapnumber), lightmapsize, lightmapsize, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
+                               if (loadmodel->brushq1.nmaplightdata)
+                                       deluxemaptexture = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%i", lightmapnumber), lightmapsize, lightmapsize, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
+                               lightmapnumber++;
+                               init_alloc_lm_state (&allocState);
+                               Mod_Q1BSP_AllocLightmapBlock(&allocState, lightmapsize, lightmapsize, ssize, tsize, &lightmapx, &lightmapy);
+                       }
+                       surface->lightmaptexture = lightmaptexture;
+                       surface->deluxemaptexture = deluxemaptexture;
+                       surface->lightmapinfo->lightmaporigin[0] = lightmapx;
+                       surface->lightmapinfo->lightmaporigin[1] = lightmapy;
 
-                               // find a place for this lightmap
-                               if (!lightmaptexture || !Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, lightmapsize, lightmapsize, ssize, tsize, &lightmapx, &lightmapy))
-                               {
-                                       // allocate a texture pool if we need it
-                                       if (loadmodel->texturepool == NULL)
-                                               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);
-                               }
+                       uscale = 1.0f / (float)lightmapsize;
+                       vscale = 1.0f / (float)lightmapsize;
+                       ubase = lightmapx * uscale;
+                       vbase = lightmapy * vscale;
 
-                               surface->lightmaptexture = lightmaptexture;
-                               surface->deluxemaptexture = deluxemaptexture;
-                               surface->lightmapinfo->lightmaporigin[0] = lightmapx;
-                               surface->lightmapinfo->lightmaporigin[1] = lightmapy;
+                       for (i = 0;i < surface->num_vertices;i++)
+                       {
+                               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;
+                               (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
+                       }
 
-                               uscale = 1.0f / (float)lightmapsize;
-                               vscale = 1.0f / (float)lightmapsize;
-                               ubase = lightmapx * uscale;
-                               vbase = lightmapy * vscale;
+               }
 
-                               for (i = 0;i < surface->num_vertices;i++)
-                               {
-                                       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;
-                                       (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
-                               }
+               if (cl_stainmaps.integer)
+               {
+                       // allocate stainmaps for permanent marks on walls
+                       int stainmapsize = 0;
+                       unsigned char *stainsamples = NULL;
+                       for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
+                       {
+                               ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
+                               tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
+                               stainmapsize += ssize * tsize * 3;
+                       }
+                       // allocate and clear to white
+                       stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, stainmapsize);
+                       memset(stainsamples, 255, stainmapsize);
+                       // assign pointers
+                       for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
+                       {
+                               ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
+                               tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
+                               surface->lightmapinfo->stainsamples = stainsamples;
+                               stainsamples += ssize * tsize * 3;
                        }
                }
        }
+
+       // generate ushort elements array if possible
+       if (loadmodel->surfmesh.data_element3s)
+               for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
+                       loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
 }
 
 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
@@ -2606,11 +2650,14 @@ qboolean Mod_Q1BSP_CheckWaterAlphaSupport(void)
        int i, j;
        mleaf_t *leaf;
        const unsigned char *pvs;
+       // if there's no vis data, assume supported (because everything is visible all the time)
+       if (!loadmodel->brush.data_pvsclusters)
+               return true;
        // 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))
+               if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && leaf->clusterindex >= 0)
                {
                        pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
                        for (j = 0;j < loadmodel->brush.num_leafs;j++)
@@ -2637,7 +2684,7 @@ static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
        loadmodel->brushq1.clipnodes = out;
        loadmodel->brushq1.numclipnodes = count;
 
-       for (i = 1; i < hullinfo->numhulls; i++)
+       for (i = 1; i < MAX_MAP_HULLS; i++)
        {
                hull = &loadmodel->brushq1.hulls[i];
                hull->clipnodes = out;
@@ -3237,62 +3284,9 @@ static void Mod_Q1BSP_MakePortals(void)
        Mod_Q1BSP_FinalizePortals();
 }
 
-static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
-{
-       int i, j, stylecounts[256], totalcount, remapstyles[256];
-       msurface_t *surface;
-       memset(stylecounts, 0, sizeof(stylecounts));
-       for (i = 0;i < model->nummodelsurfaces;i++)
-       {
-               surface = model->data_surfaces + model->firstmodelsurface + i;
-               for (j = 0;j < MAXLIGHTMAPS;j++)
-                       stylecounts[surface->lightmapinfo->styles[j]]++;
-       }
-       totalcount = 0;
-       model->brushq1.light_styles = 0;
-       for (i = 0;i < 255;i++)
-       {
-               if (stylecounts[i])
-               {
-                       remapstyles[i] = model->brushq1.light_styles++;
-                       totalcount += stylecounts[i] + 1;
-               }
-       }
-       if (!totalcount)
-               return;
-       model->brushq1.light_style = (unsigned char *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(unsigned char));
-       model->brushq1.light_stylevalue = (int *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
-       model->brushq1.light_styleupdatechains = (msurface_t ***)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
-       model->brushq1.light_styleupdatechainsbuffer = (msurface_t **)Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
-       model->brushq1.light_styles = 0;
-       for (i = 0;i < 255;i++)
-               if (stylecounts[i])
-                       model->brushq1.light_style[model->brushq1.light_styles++] = i;
-       j = 0;
-       for (i = 0;i < model->brushq1.light_styles;i++)
-       {
-               model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
-               j += stylecounts[model->brushq1.light_style[i]] + 1;
-       }
-       for (i = 0;i < model->nummodelsurfaces;i++)
-       {
-               surface = model->data_surfaces + model->firstmodelsurface + i;
-               for (j = 0;j < MAXLIGHTMAPS;j++)
-                       if (surface->lightmapinfo->styles[j] != 255)
-                               *model->brushq1.light_styleupdatechains[remapstyles[surface->lightmapinfo->styles[j]]]++ = surface;
-       }
-       j = 0;
-       for (i = 0;i < model->brushq1.light_styles;i++)
-       {
-               *model->brushq1.light_styleupdatechains[i] = NULL;
-               model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
-               j += stylecounts[model->brushq1.light_style[i]] + 1;
-       }
-}
-
 //Returns PVS data for a given point
 //(note: can return NULL)
-static unsigned char *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
+static unsigned char *Mod_Q1BSP_GetPVS(dp_model_t *model, const vec3_t p)
 {
        mnode_t *node;
        node = model->brush.data_nodes;
@@ -3304,7 +3298,7 @@ static unsigned char *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
                return NULL;
 }
 
-static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
+static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(dp_model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
 {
        while (node->plane)
        {
@@ -3332,7 +3326,7 @@ static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org,
 
 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
 //of the given point.
-static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength, qboolean merge)
+static int Mod_Q1BSP_FatPVS(dp_model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength, qboolean merge)
 {
        int bytes = model->brush.num_pvsclusterbytes;
        bytes = min(bytes, pvsbufferlength);
@@ -3347,22 +3341,13 @@ static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsi
        return bytes;
 }
 
-static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
+static void Mod_Q1BSP_RoundUpToHullSize(dp_model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
 {
        vec3_t size;
        const hull_t *hull;
 
        VectorSubtract(inmaxs, inmins, size);
-       if (cmodel->brush.ismcbsp)
-       {
-               if (size[0] < 3)
-                       hull = &cmodel->brushq1.hulls[0]; // 0x0x0
-               else if (size[2] < 48) // pick the nearest of 40 or 56
-                       hull = &cmodel->brushq1.hulls[2]; // 16x16x40
-               else
-                       hull = &cmodel->brushq1.hulls[1]; // 16x16x56
-       }
-       else if (cmodel->brush.ishlbsp)
+       if (cmodel->brush.ishlbsp)
        {
                if (size[0] < 3)
                        hull = &cmodel->brushq1.hulls[0]; // 0x0x0
@@ -3389,7 +3374,7 @@ static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, co
        VectorAdd(inmins, hull->clip_size, outmaxs);
 }
 
-void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
+void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 {
        int i, j, k;
        dheader_t *header;
@@ -3398,104 +3383,57 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
        float dist, modelyawradius, modelradius, *vec;
        msurface_t *surface;
        int numshadowmeshtriangles;
-       dheader_t _header;
        hullinfo_t hullinfo;
+       int totalstylesurfaces, totalstyles, stylecounts[256], remapstyles[256];
+       model_brush_lightstyleinfo_t styleinfo[256];
+       unsigned char *datapointer;
 
        mod->modeldatatypestring = "Q1BSP";
 
        mod->type = mod_brushq1;
 
-       if (!memcmp (buffer, "MCBSPpad", 8))
-       {
-               unsigned char   *index;
-
-               mod->brush.ismcbsp = true;
-               mod->brush.ishlbsp = false;
-
-               mod_base = (unsigned char*)buffer;
-
-               index = mod_base;
-               index += 8;
-               i = SB_ReadInt (&index);
-               if (i != MCBSPVERSION)
-                       Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i)", mod->name, i, MCBSPVERSION);
-
-       // read hull info
-               hullinfo.numhulls = SB_ReadInt (&index);
-               hullinfo.filehulls = hullinfo.numhulls;
-               mod->brushq1.numhulls = hullinfo.numhulls;
+       header = (dheader_t *)buffer;
 
-               VectorClear (hullinfo.hullsizes[0][0]);
-               VectorClear (hullinfo.hullsizes[0][1]);
-               for (i = 1; i < hullinfo.numhulls; i++)
-               {
-                       hullinfo.hullsizes[i][0][0] = SB_ReadFloat (&index);
-                       hullinfo.hullsizes[i][0][1] = SB_ReadFloat (&index);
-                       hullinfo.hullsizes[i][0][2] = SB_ReadFloat (&index);
-                       hullinfo.hullsizes[i][1][0] = SB_ReadFloat (&index);
-                       hullinfo.hullsizes[i][1][1] = SB_ReadFloat (&index);
-                       hullinfo.hullsizes[i][1][2] = SB_ReadFloat (&index);
-               }
+       i = LittleLong(header->version);
+       if (i != BSPVERSION && i != 30)
+               Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
+       mod->brush.ishlbsp = i == 30;
 
-       // read lumps
-               _header.version = 0;
-               for (i = 0; i < HEADER_LUMPS; i++)
-               {
-                       _header.lumps[i].fileofs = SB_ReadInt (&index);
-                       _header.lumps[i].filelen = SB_ReadInt (&index);
-               }
+// fill in hull info
+       VectorClear (hullinfo.hullsizes[0][0]);
+       VectorClear (hullinfo.hullsizes[0][1]);
+       if (mod->brush.ishlbsp)
+       {
+               mod->modeldatatypestring = "HLBSP";
 
-               header = &_header;
+               hullinfo.filehulls = 4;
+               VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
+               VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
+               VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
+               VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
+               VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
+               VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
        }
        else
        {
-               header = (dheader_t *)buffer;
-
-               i = LittleLong(header->version);
-               if (i != BSPVERSION && i != 30)
-                       Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
-               mod->brush.ishlbsp = i == 30;
-               mod->brush.ismcbsp = false;
-
-       // fill in hull info
-               VectorClear (hullinfo.hullsizes[0][0]);
-               VectorClear (hullinfo.hullsizes[0][1]);
-               if (mod->brush.ishlbsp)
-               {
-                       mod->modeldatatypestring = "HLBSP";
-
-                       hullinfo.numhulls = 4;
-                       hullinfo.filehulls = 4;
-                       mod->brushq1.numhulls = 4;
-                       VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
-                       VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
-                       VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
-                       VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
-                       VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
-                       VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
-               }
-               else
-               {
-                       hullinfo.numhulls = 3;
-                       hullinfo.filehulls = 4;
-                       mod->brushq1.numhulls = 3;
-                       VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
-                       VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
-                       VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
-                       VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
-               }
+               hullinfo.filehulls = 4;
+               VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
+               VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
+               VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
+               VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
+       }
 
-       // read lumps
-               mod_base = (unsigned char*)buffer;
-               for (i = 0; i < HEADER_LUMPS; i++)
-               {
-                       header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
-                       header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
-               }
+// read lumps
+       mod_base = (unsigned char*)buffer;
+       for (i = 0; i < HEADER_LUMPS; i++)
+       {
+               header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
+               header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
        }
 
        mod->soundfromcenter = true;
        mod->TraceBox = Mod_Q1BSP_TraceBox;
+       mod->PointSuperContents = Mod_Q1BSP_PointSuperContents;
        mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
        mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
        mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
@@ -3512,16 +3450,10 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
        mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
 
        if (loadmodel->isworldmodel)
-       {
                Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
-               Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
-       }
 
 // load into heap
 
-       // 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++)
@@ -3581,15 +3513,7 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
        Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
 
        if (loadmodel->brush.numsubmodels)
-               loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
-
-       if (loadmodel->isworldmodel)
-       {
-               // clear out any stale submodels or worldmodels lying around
-               // if we did this clear before now, an error might abort loading and
-               // leave things in a bad state
-               Mod_RemoveStaleWorldModels(loadmodel);
-       }
+               loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
 
        // LordHavoc: to clear the fog around the original quake submodel code, I
        // will explain:
@@ -3605,6 +3529,25 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
        // LordHavoc: now the explanation of my sane way (which works identically):
        // set up the world model, then on each submodel copy from the world model
        // and set up the submodel with the respective model info.
+       totalstylesurfaces = 0;
+       totalstyles = 0;
+       for (i = 0;i < mod->brush.numsubmodels;i++)
+       {
+               memset(stylecounts, 0, sizeof(stylecounts));
+               for (k = 0;k < mod->brushq1.submodels[i].numfaces;k++)
+               {
+                       surface = mod->data_surfaces + mod->brushq1.submodels[i].firstface + k;
+                       for (j = 0;j < MAXLIGHTMAPS;j++)
+                               stylecounts[surface->lightmapinfo->styles[j]]++;
+               }
+               for (k = 0;k < 255;k++)
+               {
+                       totalstyles++;
+                       if (stylecounts[k])
+                               totalstylesurfaces += stylecounts[k];
+               }
+       }
+       datapointer = (unsigned char *)Mem_Alloc(mod->mempool, mod->num_surfaces * sizeof(int) + totalstyles * sizeof(model_brush_lightstyleinfo_t) + totalstylesurfaces * sizeof(int *));
        for (i = 0;i < mod->brush.numsubmodels;i++)
        {
                // LordHavoc: this code was originally at the end of this loop, but
@@ -3619,7 +3562,7 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
                        if (!loadmodel->isworldmodel)
                                continue;
                        // duplicate the basic information
-                       sprintf(name, "*%i", i);
+                       dpsnprintf(name, sizeof(name), "*%i", i);
                        mod = Mod_FindName(name);
                        // copy the base model to this one
                        *mod = *loadmodel;
@@ -3648,7 +3591,7 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
                mod->nummodelsurfaces = bm->numfaces;
 
                // make the model surface list (used by shadowing/lighting)
-               mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
+               mod->surfacelist = (int *)datapointer;datapointer += mod->nummodelsurfaces * sizeof(int);
                for (j = 0;j < mod->nummodelsurfaces;j++)
                        mod->surfacelist[j] = mod->firstmodelsurface + j;
 
@@ -3674,12 +3617,15 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
                        mod->brush.LightPoint = NULL;
                        mod->brush.AmbientSoundLevelsForPoint = NULL;
                }
-               Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
+               // copy the submodel bounds, then enlarge the yaw and rotated bounds according to radius
+               VectorCopy(bm->mins, mod->normalmins);
+               VectorCopy(bm->maxs, mod->normalmaxs);
+               VectorCopy(bm->mins, mod->yawmins);
+               VectorCopy(bm->maxs, mod->yawmaxs);
+               VectorCopy(bm->mins, mod->rotatedmins);
+               VectorCopy(bm->maxs, mod->rotatedmaxs);
                if (mod->nummodelsurfaces)
                {
-                       // LordHavoc: calculate bmodel bounding box rather than trusting what it says
-                       mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
-                       mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
                        modelyawradius = 0;
                        modelradius = 0;
                        for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
@@ -3692,12 +3638,6 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
                                // calculate bounding shapes
                                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];
-                                       if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
-                                       if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
-                                       if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
-                                       if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
                                        dist = vec[0]*vec[0]+vec[1]*vec[1];
                                        if (modelyawradius < dist)
                                                modelyawradius = dist;
@@ -3708,13 +3648,56 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
                        }
                        modelyawradius = sqrt(modelyawradius);
                        modelradius = sqrt(modelradius);
-                       mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
-                       mod->yawmins[2] = mod->normalmins[2];
-                       mod->yawmaxs[2] = mod->normalmaxs[2];
-                       mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
-                       mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
+                       mod->yawmins[0] = min(mod->yawmins[0], -modelyawradius);
+                       mod->yawmaxs[0] = min(mod->yawmaxs[0], -modelyawradius);
+                       mod->yawmins[1] = min(mod->yawmins[1],  modelyawradius);
+                       mod->yawmaxs[1] = min(mod->yawmaxs[1],  modelyawradius);
+                       mod->rotatedmins[0] = min(mod->rotatedmins[0], -modelradius);
+                       mod->rotatedmaxs[0] = min(mod->rotatedmaxs[0],  modelradius);
+                       mod->rotatedmins[1] = min(mod->rotatedmins[1], -modelradius);
+                       mod->rotatedmaxs[1] = min(mod->rotatedmaxs[1],  modelradius);
+                       mod->rotatedmins[2] = min(mod->rotatedmins[2], -modelradius);
+                       mod->rotatedmaxs[2] = min(mod->rotatedmaxs[2],  modelradius);
                        mod->radius = modelradius;
                        mod->radius2 = modelradius * modelradius;
+
+                       // build lightstyle update chains
+                       // (used to rapidly mark lightmapupdateflags on many surfaces
+                       // when d_lightstylevalue changes)
+                       memset(stylecounts, 0, sizeof(stylecounts));
+                       for (k = 0;k < mod->nummodelsurfaces;k++)
+                       {
+                               surface = mod->data_surfaces + mod->firstmodelsurface + k;
+                               for (j = 0;j < MAXLIGHTMAPS;j++)
+                                       stylecounts[surface->lightmapinfo->styles[j]]++;
+                       }
+                       mod->brushq1.num_lightstyles = 0;
+                       for (k = 0;k < 255;k++)
+                       {
+                               if (stylecounts[k])
+                               {
+                                       styleinfo[mod->brushq1.num_lightstyles].style = k;
+                                       styleinfo[mod->brushq1.num_lightstyles].value = 0;
+                                       styleinfo[mod->brushq1.num_lightstyles].numsurfaces = 0;
+                                       styleinfo[mod->brushq1.num_lightstyles].surfacelist = (int *)datapointer;datapointer += stylecounts[k] * sizeof(int);
+                                       remapstyles[k] = mod->brushq1.num_lightstyles;
+                                       mod->brushq1.num_lightstyles++;
+                               }
+                       }
+                       for (k = 0;k < mod->nummodelsurfaces;k++)
+                       {
+                               surface = mod->data_surfaces + mod->firstmodelsurface + k;
+                               for (j = 0;j < MAXLIGHTMAPS;j++)
+                               {
+                                       if (surface->lightmapinfo->styles[j] != 255)
+                                       {
+                                               int r = remapstyles[surface->lightmapinfo->styles[j]];
+                                               styleinfo[r].surfacelist[styleinfo[r].numsurfaces++] = mod->firstmodelsurface + k;
+                                       }
+                               }
+                       }
+                       mod->brushq1.data_lightstyleinfo = (model_brush_lightstyleinfo_t *)datapointer;datapointer += mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t);
+                       memcpy(mod->brushq1.data_lightstyleinfo, styleinfo, mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t));
                }
                else
                {
@@ -4110,7 +4093,7 @@ static void Mod_Q2BSP_LoadModels(lump_t *l)
 */
 }
 
-void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
+void static Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 {
        int i;
        q2dheader_t *header;
@@ -4127,12 +4110,8 @@ void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
        if (i != Q2BSPVERSION)
                Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
        mod->brush.ishlbsp = false;
-       mod->brush.ismcbsp = false;
        if (loadmodel->isworldmodel)
-       {
                Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
-               Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
-       }
 
        mod_base = (unsigned char *)header;
 
@@ -4140,9 +4119,6 @@ void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
        for (i = 0;i < (int) sizeof(*header) / 4;i++)
                ((int *)header)[i] = LittleLong(((int *)header)[i]);
 
-       // 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++)
@@ -4176,8 +4152,8 @@ void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
        Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
 }
 
-static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
-static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
+static int Mod_Q3BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents);
+static int Mod_Q3BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents);
 
 static void Mod_Q3BSP_LoadEntities(lump_t *l)
 {
@@ -4212,6 +4188,9 @@ static void Mod_Q3BSP_LoadEntities(lump_t *l)
                        strlcpy(value, com_token, sizeof(value));
                        if (!strcmp("gridsize", key))
                        {
+#if _MSC_VER >= 1400
+#define sscanf sscanf_s
+#endif
                                if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
                                        VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
                        }
@@ -4223,7 +4202,7 @@ static void Mod_Q3BSP_LoadTextures(lump_t *l)
 {
        q3dtexture_t *in;
        texture_t *out;
-       int i, count, c;
+       int i, count;
 
        in = (q3dtexture_t *)(mod_base + l->fileofs);
        if (l->filelen % sizeof(*in))
@@ -4245,12 +4224,8 @@ static void Mod_Q3BSP_LoadTextures(lump_t *l)
        if (cls.state == ca_dedicated)
                return;
 
-       c = 0;
        for (i = 0;i < count;i++, in++, out++)
-               if (!Mod_LoadTextureFromQ3Shader(out, out->name, false, true, false))
-                       c++;
-       if (c)
-               Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
+               Mod_LoadTextureFromQ3Shader(out, out->name, true, true, TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS);
 }
 
 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
@@ -4306,6 +4281,34 @@ static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
        }
 }
 
+static void Mod_Q3BSP_LoadBrushSides_IG(lump_t *l)
+{
+       q3dbrushside_ig_t *in;
+       q3mbrushside_t *out;
+       int i, n, count;
+
+       in = (q3dbrushside_ig_t *)(mod_base + l->fileofs);
+       if (l->filelen % sizeof(*in))
+               Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
+       count = l->filelen / sizeof(*in);
+       out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
+
+       loadmodel->brush.data_brushsides = out;
+       loadmodel->brush.num_brushsides = count;
+
+       for (i = 0;i < count;i++, in++, out++)
+       {
+               n = LittleLong(in->planeindex);
+               if (n < 0 || n >= loadmodel->brush.num_planes)
+                       Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
+               out->plane = loadmodel->brush.data_planes + n;
+               n = LittleLong(in->textureindex);
+               if (n < 0 || n >= loadmodel->num_textures)
+                       Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
+               out->texture = loadmodel->data_textures + n;
+       }
+}
+
 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
 {
        q3dbrush_t *in;
@@ -4452,19 +4455,76 @@ static void Mod_Q3BSP_LoadTriangles(lump_t *l)
 
 static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
 {
-       q3dlightmap_t *in;
-       int i, j, count, power, power2, mask, endlightmap, mergewidth, mergeheight;
+       q3dlightmap_t *input_pointer;
+       int i, j, k, count, power, power2, mask, endlightmap, mergewidth, mergeheight;
        unsigned char *c;
 
-       if (!l->filelen)
-               return;
+       unsigned char *convertedpixels;
+       char mapname[MAX_QPATH];
+       int size, bytesperpixel, rgbmap[3];
+       qboolean external;
+       unsigned char *inpixels[10000]; // max count q3map2 can output (it uses 4 digits)
+
+       // defaults for q3bsp
+       size = 128;
+       bytesperpixel = 3;
+       rgbmap[0] = 2;
+       rgbmap[1] = 1;
+       rgbmap[2] = 0;
+       external = false;
+       loadmodel->brushq3.lightmapsize = 128;
+
        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);
-       loadmodel->brushq3.num_originallightmaps = count;
+
+       FS_StripExtension(loadmodel->name, mapname, sizeof(mapname));
+       inpixels[0] = loadimagepixelsbgra(va("%s/lm_%04d", mapname, 0), false, false);
+       if(inpixels[0])
+       {
+               // using EXTERNAL lightmaps instead
+               if(image_width != (int) CeilPowerOf2(image_width) || image_width != image_height)
+               {
+                       Mem_Free(inpixels[0]);
+                       Host_Error("Mod_Q3BSP_LoadLightmaps: invalid external lightmap size in %s",loadmodel->name);
+               }
+
+               size = image_width;
+               bytesperpixel = 4;
+               rgbmap[0] = 0;
+               rgbmap[1] = 1;
+               rgbmap[2] = 2;
+               external = true;
+
+               for(count = 1; ; ++count)
+               {
+                       inpixels[count] = loadimagepixelsbgra(va("%s/lm_%04d", mapname, count), false, false);
+                       if(!inpixels[count])
+                               break; // we got all of them
+                       if(image_width != size || image_height != size)
+                       {
+                               for(i = 0; i <= count; ++i)
+                                       Mem_Free(inpixels[i]);
+                               Host_Error("Mod_Q3BSP_LoadLightmaps: invalid external lightmap size in %s",loadmodel->name);
+                       }
+               }
+       }
+       else
+       {
+               if (!l->filelen)
+               {
+                       return;
+               }
+               input_pointer = (q3dlightmap_t *)(mod_base + l->fileofs);
+               if (l->filelen % sizeof(*input_pointer))
+                       Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
+               count = l->filelen / sizeof(*input_pointer);
+               loadmodel->brushq3.num_originallightmaps = count;
+               for(i = 0; i < count; ++i)
+                       inpixels[i] = input_pointer[i].rgb;
+       }
+
+       convertedpixels = Mem_Alloc(tempmempool, size*size*4); // TODO free this
+       loadmodel->brushq3.lightmapsize = size;
 
        // now check the surfaces to see if any of them index an odd numbered
        // lightmap, if so this is not a deluxemapped bsp file
@@ -4496,20 +4556,27 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
                        }
                }
        }
-       if (endlightmap < 2)
-               loadmodel->brushq3.deluxemapping = false;
 
        // 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)
+       //
+       // further research has shown q3map2 sometimes creates a deluxemap and two
+       // blank lightmaps, which must be handled properly as well
+       if (endlightmap == 1 && count > 1)
        {
-               c = in[1].rgb;
-               for (i = 0;i < 128*128*3;i++)
-                       if (c[i])
+               c = inpixels[1];
+               for (i = 0;i < size*size;i++)
+               {
+                       if (c[bytesperpixel*i + rgbmap[0]])
+                               break;
+                       if (c[bytesperpixel*i + rgbmap[1]])
+                               break;
+                       if (c[bytesperpixel*i + rgbmap[2]])
                                break;
-               if (i == 128*128*3)
+               }
+               if (i == size*size)
                {
                        // all pixels in the unused lightmap were black...
                        loadmodel->brushq3.deluxemapping = false;
@@ -4522,6 +4589,14 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
        loadmodel->brushq3.num_lightmapmergepower = 0;
        for (power = 1;power <= mod_q3bsp_lightmapmergepower.integer && (128 << power) <= gl_max_texture_size && (1 << (power * 2)) < 4 * (count >> loadmodel->brushq3.deluxemapping);power++)
                loadmodel->brushq3.num_lightmapmergepower = power;
+
+       // as the lightmap size may actually be another power of 2, adjust for this
+       // (and interpret it as the power for 128x128 lightmaps above)
+       for(i = 0; (128 << i) < size; ++i)
+               loadmodel->brushq3.num_lightmapmergepower -= 1;
+       if(loadmodel->brushq3.num_lightmapmergepower < 0)
+               loadmodel->brushq3.num_lightmapmergepower = 0;
+
        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);
@@ -4533,20 +4608,27 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
        if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
                loadmodel->texturepool = R_AllocTexturePool();
 
-       if (loadmodel->brushq3.num_lightmapmergepower > 0)
+       power = loadmodel->brushq3.num_lightmapmergepower;
+       power2 = power * 2;
+       mask = (1 << power) - 1;
+       for (i = 0;i < count;i++)
        {
-               power = loadmodel->brushq3.num_lightmapmergepower;
-               power2 = power * 2;
-               mask = (1 << power) - 1;
-               for (i = 0;i < count;i++)
+               // figure out which merged lightmap texture this fits into
+               int lightmapindex = i >> (loadmodel->brushq3.deluxemapping + power2);
+               for (k = 0;k < size*size;k++)
+               {
+                       convertedpixels[k*4+0] = inpixels[i][k*bytesperpixel+rgbmap[0]];
+                       convertedpixels[k*4+1] = inpixels[i][k*bytesperpixel+rgbmap[1]];
+                       convertedpixels[k*4+2] = inpixels[i][k*bytesperpixel+rgbmap[2]];
+                       convertedpixels[k*4+3] = 255;
+               }
+               if (loadmodel->brushq3.num_lightmapmergepower > 0)
                {
-                       // figure out which merged lightmap texture this fits into
-                       int lightmapindex = i >> (loadmodel->brushq3.deluxemapping + power2);
                        // if the lightmap has not been allocated yet, create it
                        if (!loadmodel->brushq3.data_lightmaps[lightmapindex])
                        {
                                // create a lightmap only as large as necessary to hold the
-                               // remaining 128x128 blocks
+                               // remaining size*size blocks
                                // if there are multiple merged lightmap textures then they will
                                // all be full size except the last one which may be smaller
                                // because it only needs to the remaining blocks, and it will often
@@ -4556,32 +4638,35 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
                                        ;
                                for (mergeheight = 1;mergewidth*mergeheight < j && mergeheight < (1 << power);mergeheight *= 2)
                                        ;
-                               Con_DPrintf("lightmap merge texture #%i is %ix%i (%i of %i used)\n", lightmapindex, mergewidth*128, mergeheight*128, min(j, mergewidth*mergeheight), mergewidth*mergeheight);
-                               loadmodel->brushq3.data_lightmaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), mergewidth * 128, mergeheight * 128, NULL, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL);
+                               if (developer_loading.integer)
+                                       Con_Printf("lightmap merge texture #%i is %ix%i (%i of %i used)\n", lightmapindex, mergewidth*size, mergeheight*size, min(j, mergewidth*mergeheight), mergewidth*mergeheight);
+                               loadmodel->brushq3.data_lightmaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), mergewidth * size, mergeheight * size, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL);
                                if (loadmodel->brushq3.data_deluxemaps)
-                                       loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), mergewidth * 128, mergeheight * 128, NULL, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL);
+                                       loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), mergewidth * size, mergeheight * size, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL);
                        }
-                       mergewidth = R_TextureWidth(loadmodel->brushq3.data_lightmaps[lightmapindex]) / 128;
-                       mergeheight = R_TextureHeight(loadmodel->brushq3.data_lightmaps[lightmapindex]) / 128;
+                       mergewidth = R_TextureWidth(loadmodel->brushq3.data_lightmaps[lightmapindex]) / size;
+                       mergeheight = R_TextureHeight(loadmodel->brushq3.data_lightmaps[lightmapindex]) / size;
                        j = (i >> loadmodel->brushq3.deluxemapping) & ((1 << power2) - 1);
                        if (loadmodel->brushq3.deluxemapping && (i & 1))
-                               R_UpdateTexture(loadmodel->brushq3.data_deluxemaps[lightmapindex], in[i].rgb, (j % mergewidth) * 128, (j / mergewidth) * 128, 128, 128);
+                               R_UpdateTexture(loadmodel->brushq3.data_deluxemaps[lightmapindex], convertedpixels, (j % mergewidth) * size, (j / mergewidth) * size, size, size);
                        else
-                               R_UpdateTexture(loadmodel->brushq3.data_lightmaps     [lightmapindex], in[i].rgb, (j % mergewidth) * 128, (j / mergewidth) * 128, 128, 128);
+                               R_UpdateTexture(loadmodel->brushq3.data_lightmaps [lightmapindex], convertedpixels, (j % mergewidth) * size, (j / mergewidth) * size, size, size);
                }
-       }
-       else
-       {
-               for (i = 0;i < count;i++)
+               else
                {
                        // figure out which merged lightmap texture this fits into
-                       int lightmapindex = i >> loadmodel->brushq3.deluxemapping;
                        if (loadmodel->brushq3.deluxemapping && (i & 1))
-                               loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), 128, 128, in[i].rgb, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL);
+                               loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), size, size, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL);
                        else
-                               loadmodel->brushq3.data_lightmaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), 128, 128, in[i].rgb, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL);
+                               loadmodel->brushq3.data_lightmaps [lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), size, size, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL);
                }
        }
+
+       if(external)
+       {
+               for(i = 0; i < count; ++i)
+                       Mem_Free(inpixels[i]);
+       }
 }
 
 static void Mod_Q3BSP_LoadFaces(lump_t *l)
@@ -4620,7 +4705,7 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
        {
                // check face type first
                type = LittleLong(in->type);
-               if (type != Q3FACETYPE_POLYGON
+               if (type != Q3FACETYPE_FLAT
                 && type != Q3FACETYPE_PATCH
                 && type != Q3FACETYPE_MESH
                 && type != Q3FACETYPE_FLARE)
@@ -4689,7 +4774,7 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                }
                switch(type)
                {
-               case Q3FACETYPE_POLYGON:
+               case Q3FACETYPE_FLAT:
                case Q3FACETYPE_MESH:
                        // no processing necessary
                        break;
@@ -4754,7 +4839,7 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                out->num_firsttriangle = meshtriangles;
                switch(type)
                {
-               case Q3FACETYPE_POLYGON:
+               case Q3FACETYPE_FLAT:
                case Q3FACETYPE_MESH:
                        // no processing necessary, except for lightmap merging
                        for (j = 0;j < out->num_vertices;j++)
@@ -4890,8 +4975,8 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                        {
                                // figure out which part of the merged lightmap this fits into
                                int lightmapindex = LittleLong(in->lightmapindex) >> loadmodel->brushq3.deluxemapping;
-                               int mergewidth = R_TextureWidth(out->lightmaptexture) / 128;
-                               int mergeheight = R_TextureHeight(out->lightmaptexture) / 128;
+                               int mergewidth = R_TextureWidth(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
+                               int mergeheight = R_TextureHeight(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
                                lightmapindex &= mergewidth * mergeheight - 1;
                                lightmaptcscale[0] = 1.0f / mergewidth;
                                lightmaptcscale[1] = 1.0f / mergeheight;
@@ -4932,6 +5017,11 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
        // 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);
 
+       // generate ushort elements array if possible
+       if (loadmodel->surfmesh.data_element3s)
+               for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
+                       loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
+
        // free the no longer needed vertex data
        loadmodel->brushq3.num_vertices = 0;
        if (loadmodel->brushq3.data_vertex3f)
@@ -5204,14 +5294,14 @@ static void Mod_Q3BSP_LoadPVS(lump_t *l)
        memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
 }
 
-static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
+static void Mod_Q3BSP_LightPoint(dp_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, 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);
+       stylescale = r_refdef.scene.rtlightstylevalue[0];
 
        if (!model->brushq3.num_lightgrid)
        {
@@ -5269,14 +5359,14 @@ static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientc
        //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]);
 }
 
-static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
+static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, dp_model_t *model, mnode_t *node, const vec3_t point, int markframe)
 {
        int i;
        mleaf_t *leaf;
        colbrushf_t *brush;
        // find which leaf the point is in
        while (node->plane)
-               node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
+               node = node->children[(node->plane->type < 3 ? point[node->plane->type] : DotProduct(point, node->plane->normal)) < node->plane->dist];
        // point trace the brushes
        leaf = (mleaf_t *)node;
        for (i = 0;i < leaf->numleafbrushes;i++)
@@ -5291,7 +5381,7 @@ static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model
        // can't do point traces on curves (they have no thickness)
 }
 
-static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t start, const vec3_t end, vec_t startfrac, vec_t endfrac, const vec3_t linestart, const vec3_t lineend, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
+static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, dp_model_t *model, mnode_t *node, const vec3_t start, const vec3_t end, vec_t startfrac, vec_t endfrac, const vec3_t linestart, const vec3_t lineend, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
 {
        int i, startside, endside;
        float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
@@ -5378,7 +5468,7 @@ static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, model_t *model,
        }
 }
 
-static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
+static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, dp_model_t *model, mnode_t *node, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
 {
        int i;
        int sides;
@@ -5459,7 +5549,7 @@ static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, model_t *model
        }
 }
 
-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)
+static void Mod_Q3BSP_TraceBox(dp_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];
@@ -5539,7 +5629,39 @@ static void Mod_Q3BSP_TraceBox(model_t *model, int frame, trace_t *trace, const
        }
 }
 
-static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
+static int Mod_Q3BSP_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
+{
+       int i;
+       int supercontents = 0;
+       q3mbrush_t *brush;
+       // test if the point is inside each brush
+       if (model->brush.submodel)
+       {
+               // submodels are effectively one leaf
+               for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
+                       if (brush->colbrushf && Collision_PointInsideBrushFloat(point, brush->colbrushf))
+                               supercontents |= brush->colbrushf->supercontents;
+       }
+       else
+       {
+               mnode_t *node = model->brush.data_nodes;
+               mleaf_t *leaf;
+               // find which leaf the point is in
+               while (node->plane)
+                       node = node->children[(node->plane->type < 3 ? point[node->plane->type] : DotProduct(point, node->plane->normal)) < node->plane->dist];
+               leaf = (mleaf_t *)node;
+               // now check the brushes in the leaf
+               for (i = 0;i < leaf->numleafbrushes;i++)
+               {
+                       brush = model->brush.data_brushes + leaf->firstleafbrush[i];
+                       if (brush->colbrushf && Collision_PointInsideBrushFloat(point, brush->colbrushf))
+                               supercontents |= brush->colbrushf->supercontents;
+               }
+       }
+       return supercontents;
+}
+
+static int Mod_Q3BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents)
 {
        int supercontents = 0;
        if (nativecontents & CONTENTSQ3_SOLID)
@@ -5565,7 +5687,7 @@ static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativec
        return supercontents;
 }
 
-static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
+static int Mod_Q3BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents)
 {
        int nativecontents = 0;
        if (supercontents & SUPERCONTENTS_SOLID)
@@ -5604,9 +5726,9 @@ void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
                loadmodel->brush.num_leafs = numleafs;
 }
 
-void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
+void Mod_Q3BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 {
-       int i, j, numshadowmeshtriangles;
+       int i, j, numshadowmeshtriangles, lumps;
        q3dheader_t *header;
        float corner[3], yawradius, modelradius;
        msurface_t *surface;
@@ -5620,18 +5742,15 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
        header = (q3dheader_t *)buffer;
 
        i = LittleLong(header->version);
-       if (i != Q3BSPVERSION)
+       if (i != Q3BSPVERSION && i != Q3BSPVERSION_IG && i != Q3BSPVERSION_LIVE)
                Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
        mod->brush.ishlbsp = false;
-       mod->brush.ismcbsp = false;
        if (loadmodel->isworldmodel)
-       {
                Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
-               Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
-       }
 
        mod->soundfromcenter = true;
        mod->TraceBox = Mod_Q3BSP_TraceBox;
+       mod->PointSuperContents = Mod_Q3BSP_PointSuperContents;
        mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
        mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
        mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
@@ -5658,15 +5777,21 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
        // swap all the lumps
        header->ident = LittleLong(header->ident);
        header->version = LittleLong(header->version);
-       for (i = 0;i < Q3HEADER_LUMPS;i++)
+       lumps = (header->version == Q3BSPVERSION_LIVE) ? Q3HEADER_LUMPS_LIVE : Q3HEADER_LUMPS;
+       for (i = 0;i < lumps;i++)
        {
                header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
                header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
        }
+       for (i = lumps;i < Q3HEADER_LUMPS_MAX;i++)
+       {
+               header->lumps[i].fileofs = 0;
+               header->lumps[i].filelen = 0;
+       }
 
        mod->brush.qw_md4sum = 0;
        mod->brush.qw_md4sum2 = 0;
-       for (i = 0;i < Q3HEADER_LUMPS;i++)
+       for (i = 0;i < lumps;i++)
        {
                if (i == Q3LUMP_ENTITIES)
                        continue;
@@ -5679,7 +5804,10 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
        Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
        Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
        Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
-       Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
+       if (header->version == Q3BSPVERSION_IG)
+               Mod_Q3BSP_LoadBrushSides_IG(&header->lumps[Q3LUMP_BRUSHSIDES]);
+       else
+               Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
        Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
        Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
        Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
@@ -5718,14 +5846,6 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
        loadmodel->brush.num_leafs = 0;
        Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
 
-       if (loadmodel->isworldmodel)
-       {
-               // clear out any stale submodels or worldmodels lying around
-               // if we did this clear before now, an error might abort loading and
-               // leave things in a bad state
-               Mod_RemoveStaleWorldModels(loadmodel);
-       }
-
        mod = loadmodel;
        for (i = 0;i < loadmodel->brush.numsubmodels;i++)
        {
@@ -5738,7 +5858,7 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
                        if (!loadmodel->isworldmodel)
                                continue;
                        // duplicate the basic information
-                       sprintf(name, "*%i", i);
+                       dpsnprintf(name, sizeof(name), "*%i", i);
                        mod = Mod_FindName(name);
                        *mod = *loadmodel;
                        strlcpy(mod->name, name, sizeof(mod->name));
@@ -5768,6 +5888,30 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
 
                VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
                VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
+               // enlarge the bounding box to enclose all geometry of this model,
+               // because q3map2 sometimes lies (mostly to affect the lightgrid),
+               // which can in turn mess up the farclip (as well as culling when
+               // outside the level - an unimportant concern)
+
+               //printf("Editing model %d... BEFORE re-bounding: %f %f %f - %f %f %f\n", i, mod->normalmins[0], mod->normalmins[1], mod->normalmins[2], mod->normalmaxs[0], mod->normalmaxs[1], mod->normalmaxs[2]);
+               for (j = 0;j < mod->nummodelsurfaces;j++)
+               {
+                       const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
+                       const float *v = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
+                       int k;
+                       if (!surface->num_vertices)
+                               continue;
+                       for (k = 0;k < surface->num_vertices;k++, v += 3)
+                       {
+                               mod->normalmins[0] = min(mod->normalmins[0], v[0]);
+                               mod->normalmins[1] = min(mod->normalmins[1], v[1]);
+                               mod->normalmins[2] = min(mod->normalmins[2], v[2]);
+                               mod->normalmaxs[0] = max(mod->normalmaxs[0], v[0]);
+                               mod->normalmaxs[1] = max(mod->normalmaxs[1], v[1]);
+                               mod->normalmaxs[2] = max(mod->normalmaxs[2], v[2]);
+                       }
+               }
+               //printf("Editing model %d... AFTER re-bounding: %f %f %f - %f %f %f\n", i, mod->normalmins[0], mod->normalmins[1], mod->normalmins[2], mod->normalmaxs[0], mod->normalmaxs[1], mod->normalmaxs[2]);
                corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
                corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
                corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
@@ -5800,10 +5944,10 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
        }
 }
 
-void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
+void Mod_IBSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 {
        int i = LittleLong(((int *)buffer)[1]);
-       if (i == Q3BSPVERSION)
+       if (i == Q3BSPVERSION || i == Q3BSPVERSION_IG || i == Q3BSPVERSION_LIVE)
                Mod_Q3BSP_Load(mod,buffer, bufferend);
        else if (i == Q2BSPVERSION)
                Mod_Q2BSP_Load(mod,buffer, bufferend);
@@ -5811,12 +5955,12 @@ void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
                Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
 }
 
-void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
+void Mod_MAP_Load(dp_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)
+qboolean Mod_CanSeeBox_Trace(int numsamples, float t, dp_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.