]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - model_brush.c
Fix a potential memory leak with wavefront sounds
[xonotic/darkplaces.git] / model_brush.c
index 71286fffe3102f9be08aed2289478cc238400645..d24c6878587d90aa89322e183d21979ba4744c60 100644 (file)
@@ -26,43 +26,46 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "wad.h"
 
 
-//cvar_t r_subdivide_size = {CVAR_SAVE, "r_subdivide_size", "128", "how large water polygons should be (smaller values produce more polygons which give better warping effects)"};
-cvar_t mod_bsp_portalize = {0, "mod_bsp_portalize", "1", "enables portal generation from BSP tree (may take several seconds per map), used by r_drawportals, r_useportalculling, r_shadow_realtime_world_compileportalculling, sv_cullentities_portal"};
-cvar_t r_novis = {0, "r_novis", "0", "draws whole level, see also sv_cullentities_pvs 0"};
-cvar_t r_nosurftextures = {0, "r_nosurftextures", "0", "pretends there was no texture lump found in the q1bsp/hlbsp loading (useful for debugging this rare case)"};
-cvar_t r_subdivisions_tolerance = {0, "r_subdivisions_tolerance", "4", "maximum error tolerance on curve subdivision for rendering purposes (in other words, the curves will be given as many polygons as necessary to represent curves at this quality)"};
-cvar_t r_subdivisions_mintess = {0, "r_subdivisions_mintess", "0", "minimum number of subdivisions (values above 0 will smooth curves that don't need it)"};
-cvar_t r_subdivisions_maxtess = {0, "r_subdivisions_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
-cvar_t r_subdivisions_maxvertices = {0, "r_subdivisions_maxvertices", "65536", "maximum vertices allowed per subdivided curve"};
-cvar_t r_subdivisions_collision_tolerance = {0, "r_subdivisions_collision_tolerance", "15", "maximum error tolerance on curve subdivision for collision purposes (usually a larger error tolerance than for rendering)"};
-cvar_t r_subdivisions_collision_mintess = {0, "r_subdivisions_collision_mintess", "0", "minimum number of subdivisions (values above 0 will smooth curves that don't need it)"};
-cvar_t r_subdivisions_collision_maxtess = {0, "r_subdivisions_collision_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
-cvar_t r_subdivisions_collision_maxvertices = {0, "r_subdivisions_collision_maxvertices", "4225", "maximum vertices allowed per subdivided curve"};
-cvar_t r_trippy = {0, "r_trippy", "0", "easter egg"};
-cvar_t r_fxaa = {CVAR_SAVE, "r_fxaa", "0", "fast approximate anti aliasing"};
-cvar_t mod_noshader_default_offsetmapping = {CVAR_SAVE, "mod_noshader_default_offsetmapping", "1", "use offsetmapping by default on all surfaces that are not using q3 shader files"};
-cvar_t mod_obj_orientation = {0, "mod_obj_orientation", "1", "fix orientation of OBJ models to the usual conventions (if zero, use coordinates as is)"};
-cvar_t mod_q2bsp_littransparentsurfaces = {0, "mod_q2bsp_littransparentsurfaces", "0", "allows lighting on rain in 3v3gloom3 and other cases of transparent surfaces that have lightmaps that were ignored by quake2"};
-cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1", "enables collisions with curves (SLOW)"};
-cvar_t mod_q3bsp_curves_collisions_stride = {0, "mod_q3bsp_curves_collisions_stride", "16", "collisions against curves: optimize performance by doing a combined collision check for this triangle amount first (-1 avoids any box tests)"};
-cvar_t mod_q3bsp_curves_stride = {0, "mod_q3bsp_curves_stride", "16", "particle effect collisions against curves: optimize performance by doing a combined collision check for this triangle amount first (-1 avoids any box tests)"};
-cvar_t mod_q3bsp_optimizedtraceline = {0, "mod_q3bsp_optimizedtraceline", "1", "whether to use optimized traceline code for line traces (as opposed to tracebox code)"};
-cvar_t mod_q3bsp_debugtracebrush = {0, "mod_q3bsp_debugtracebrush", "0", "selects different tracebrush bsp recursion algorithms (for debugging purposes only)"};
-cvar_t mod_q3bsp_lightmapmergepower = {CVAR_SAVE, "mod_q3bsp_lightmapmergepower", "4", "merges the quake3 128x128 lightmap textures into larger lightmap group textures to speed up rendering, 1 = 256x256, 2 = 512x512, 3 = 1024x1024, 4 = 2048x2048, 5 = 4096x4096, ..."};
-cvar_t mod_q3bsp_nolightmaps = {CVAR_SAVE, "mod_q3bsp_nolightmaps", "0", "do not load lightmaps in Q3BSP maps (to save video RAM, but be warned: it looks ugly)"};
-cvar_t mod_q3bsp_tracelineofsight_brushes = {0, "mod_q3bsp_tracelineofsight_brushes", "0", "enables culling of entities behind detail brushes, curves, etc"};
-cvar_t mod_q3bsp_sRGBlightmaps = {0, "mod_q3bsp_sRGBlightmaps", "0", "treat lightmaps from Q3 maps as sRGB when vid_sRGB is active"};
-cvar_t mod_q3shader_default_offsetmapping = {CVAR_SAVE, "mod_q3shader_default_offsetmapping", "1", "use offsetmapping by default on all surfaces that are using q3 shader files"};
-cvar_t mod_q3shader_default_offsetmapping_scale = {CVAR_SAVE, "mod_q3shader_default_offsetmapping_scale", "1", "default scale used for offsetmapping"};
-cvar_t mod_q3shader_default_offsetmapping_bias = {CVAR_SAVE, "mod_q3shader_default_offsetmapping_bias", "0", "default bias used for offsetmapping"};
-cvar_t mod_q3shader_default_polygonfactor = {0, "mod_q3shader_default_polygonfactor", "0", "biases depth values of 'polygonoffset' shaders to prevent z-fighting artifacts"};
-cvar_t mod_q3shader_default_polygonoffset = {0, "mod_q3shader_default_polygonoffset", "-2", "biases depth values of 'polygonoffset' shaders to prevent z-fighting artifacts"};
-cvar_t mod_q3shader_force_addalpha = {0, "mod_q3shader_force_addalpha", "0", "treat GL_ONE GL_ONE (or add) blendfunc as GL_SRC_ALPHA GL_ONE for compatibility with older DarkPlaces releases"};
-cvar_t mod_q3shader_force_terrain_alphaflag = {0, "mod_q3shader_force_terrain_alphaflag", "0", "for multilayered terrain shaders force TEXF_ALPHA flag on both layers"};
-
-cvar_t mod_q1bsp_polygoncollisions = {0, "mod_q1bsp_polygoncollisions", "0", "disables use of precomputed cliphulls and instead collides with polygons (uses Bounding Interval Hierarchy optimizations)"};
-cvar_t mod_collision_bih = {0, "mod_collision_bih", "1", "enables use of generated Bounding Interval Hierarchy tree instead of compiled bsp tree in collision code"};
-cvar_t mod_recalculatenodeboxes = {0, "mod_recalculatenodeboxes", "1", "enables use of generated node bounding boxes based on BSP tree portal reconstruction, rather than the node boxes supplied by the map compiler"};
+//cvar_t r_subdivide_size = {CVAR_CLIENT | CVAR_SAVE, "r_subdivide_size", "128", "how large water polygons should be (smaller values produce more polygons which give better warping effects)"};
+cvar_t mod_bsp_portalize = {CVAR_CLIENT | CVAR_SERVER, "mod_bsp_portalize", "1", "enables portal generation from BSP tree (may take several seconds per map), used by r_drawportals, r_useportalculling, r_shadow_realtime_world_compileportalculling, sv_cullentities_portal"};
+cvar_t r_novis = {CVAR_CLIENT, "r_novis", "0", "draws whole level, see also sv_cullentities_pvs 0"};
+cvar_t r_nosurftextures = {CVAR_CLIENT, "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 = {CVAR_CLIENT, "r_subdivisions_tolerance", "4", "maximum error tolerance on curve subdivision for rendering purposes (in other words, the curves will be given as many polygons as necessary to represent curves at this quality)"};
+cvar_t r_subdivisions_mintess = {CVAR_CLIENT, "r_subdivisions_mintess", "0", "minimum number of subdivisions (values above 0 will smooth curves that don't need it)"};
+cvar_t r_subdivisions_maxtess = {CVAR_CLIENT, "r_subdivisions_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
+cvar_t r_subdivisions_maxvertices = {CVAR_CLIENT, "r_subdivisions_maxvertices", "65536", "maximum vertices allowed per subdivided curve"};
+cvar_t r_subdivisions_collision_tolerance = {CVAR_CLIENT, "r_subdivisions_collision_tolerance", "15", "maximum error tolerance on curve subdivision for collision purposes (usually a larger error tolerance than for rendering)"};
+cvar_t r_subdivisions_collision_mintess = {CVAR_CLIENT, "r_subdivisions_collision_mintess", "0", "minimum number of subdivisions (values above 0 will smooth curves that don't need it)"};
+cvar_t r_subdivisions_collision_maxtess = {CVAR_CLIENT, "r_subdivisions_collision_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
+cvar_t r_subdivisions_collision_maxvertices = {CVAR_CLIENT, "r_subdivisions_collision_maxvertices", "4225", "maximum vertices allowed per subdivided curve"};
+cvar_t r_trippy = {CVAR_CLIENT, "r_trippy", "0", "easter egg"};
+cvar_t r_fxaa = {CVAR_CLIENT | CVAR_SAVE, "r_fxaa", "0", "fast approximate anti aliasing"};
+cvar_t mod_noshader_default_offsetmapping = {CVAR_CLIENT | CVAR_SAVE, "mod_noshader_default_offsetmapping", "1", "use offsetmapping by default on all surfaces that are not using q3 shader files"};
+cvar_t mod_obj_orientation = {CVAR_CLIENT | CVAR_SERVER, "mod_obj_orientation", "1", "fix orientation of OBJ models to the usual conventions (if zero, use coordinates as is)"};
+cvar_t mod_q2bsp_littransparentsurfaces = {CVAR_CLIENT, "mod_q2bsp_littransparentsurfaces", "0", "allows lighting on rain in 3v3gloom3 and other cases of transparent surfaces that have lightmaps that were ignored by quake2"};
+cvar_t mod_q3bsp_curves_collisions = {CVAR_CLIENT | CVAR_SERVER, "mod_q3bsp_curves_collisions", "1", "enables collisions with curves (SLOW)"};
+cvar_t mod_q3bsp_curves_collisions_stride = {CVAR_CLIENT | CVAR_SERVER, "mod_q3bsp_curves_collisions_stride", "16", "collisions against curves: optimize performance by doing a combined collision check for this triangle amount first (-1 avoids any box tests)"};
+cvar_t mod_q3bsp_curves_stride = {CVAR_CLIENT | CVAR_SERVER, "mod_q3bsp_curves_stride", "16", "particle effect collisions against curves: optimize performance by doing a combined collision check for this triangle amount first (-1 avoids any box tests)"};
+cvar_t mod_q3bsp_optimizedtraceline = {CVAR_CLIENT | CVAR_SERVER, "mod_q3bsp_optimizedtraceline", "1", "whether to use optimized traceline code for line traces (as opposed to tracebox code)"};
+cvar_t mod_q3bsp_debugtracebrush = {CVAR_CLIENT | CVAR_SERVER, "mod_q3bsp_debugtracebrush", "0", "selects different tracebrush bsp recursion algorithms (for debugging purposes only)"};
+cvar_t mod_q3bsp_lightmapmergepower = {CVAR_CLIENT | CVAR_SAVE, "mod_q3bsp_lightmapmergepower", "4", "merges the quake3 128x128 lightmap textures into larger lightmap group textures to speed up rendering, 1 = 256x256, 2 = 512x512, 3 = 1024x1024, 4 = 2048x2048, 5 = 4096x4096, ..."};
+cvar_t mod_q3bsp_nolightmaps = {CVAR_CLIENT | CVAR_SAVE, "mod_q3bsp_nolightmaps", "0", "do not load lightmaps in Q3BSP maps (to save video RAM, but be warned: it looks ugly)"};
+cvar_t mod_q3bsp_tracelineofsight_brushes = {CVAR_CLIENT | CVAR_SERVER, "mod_q3bsp_tracelineofsight_brushes", "0", "enables culling of entities behind detail brushes, curves, etc"};
+cvar_t mod_q3bsp_sRGBlightmaps = {CVAR_CLIENT, "mod_q3bsp_sRGBlightmaps", "0", "treat lightmaps from Q3 maps as sRGB when vid_sRGB is active"};
+cvar_t mod_q3bsp_lightgrid_texture = {CVAR_CLIENT, "mod_q3bsp_lightgrid_texture", "1", "directly apply the lightgrid as a global texture rather than only reading it at the entity origin"};
+cvar_t mod_q3bsp_lightgrid_world_surfaces = {CVAR_CLIENT, "mod_q3bsp_lightgrid_world_surfaces", "0", "apply lightgrid lighting to the world bsp geometry rather than using lightmaps (experimental/debug tool)"};
+cvar_t mod_q3bsp_lightgrid_bsp_surfaces = {CVAR_CLIENT, "mod_q3bsp_lightgrid_bsp_surfaces", "0", "apply lightgrid lighting to bsp models other than the world rather than using their lightmaps (experimental/debug tool)"};
+cvar_t mod_q3shader_default_offsetmapping = {CVAR_CLIENT | CVAR_SAVE, "mod_q3shader_default_offsetmapping", "1", "use offsetmapping by default on all surfaces that are using q3 shader files"};
+cvar_t mod_q3shader_default_offsetmapping_scale = {CVAR_CLIENT | CVAR_SAVE, "mod_q3shader_default_offsetmapping_scale", "1", "default scale used for offsetmapping"};
+cvar_t mod_q3shader_default_offsetmapping_bias = {CVAR_CLIENT | CVAR_SAVE, "mod_q3shader_default_offsetmapping_bias", "0", "default bias used for offsetmapping"};
+cvar_t mod_q3shader_default_polygonfactor = {CVAR_CLIENT, "mod_q3shader_default_polygonfactor", "0", "biases depth values of 'polygonoffset' shaders to prevent z-fighting artifacts"};
+cvar_t mod_q3shader_default_polygonoffset = {CVAR_CLIENT, "mod_q3shader_default_polygonoffset", "-2", "biases depth values of 'polygonoffset' shaders to prevent z-fighting artifacts"};
+cvar_t mod_q3shader_default_refractive_index = {CVAR_CLIENT, "mod_q3shader_default_refractive_index", "1.33", "angle of refraction specified as n to apply when a photon is refracted, example values are: 1.0003 = air, water = 1.333, crown glass = 1.517, flint glass = 1.655, diamond = 2.417"};
+cvar_t mod_q3shader_force_addalpha = {CVAR_CLIENT, "mod_q3shader_force_addalpha", "0", "treat GL_ONE GL_ONE (or add) blendfunc as GL_SRC_ALPHA GL_ONE for compatibility with older DarkPlaces releases"};
+cvar_t mod_q3shader_force_terrain_alphaflag = {CVAR_CLIENT, "mod_q3shader_force_terrain_alphaflag", "0", "for multilayered terrain shaders force TEXF_ALPHA flag on both layers"};
+
+cvar_t mod_q1bsp_polygoncollisions = {CVAR_CLIENT | CVAR_SERVER, "mod_q1bsp_polygoncollisions", "0", "disables use of precomputed cliphulls and instead collides with polygons (uses Bounding Interval Hierarchy optimizations)"};
+cvar_t mod_recalculatenodeboxes = {CVAR_CLIENT | CVAR_SERVER, "mod_recalculatenodeboxes", "1", "enables use of generated node bounding boxes based on BSP tree portal reconstruction, rather than the node boxes supplied by the map compiler"};
 
 static texture_t mod_q1bsp_texture_solid;
 static texture_t mod_q1bsp_texture_sky;
@@ -99,16 +102,19 @@ void Mod_BrushInit(void)
        Cvar_RegisterVariable(&mod_q3bsp_lightmapmergepower);
        Cvar_RegisterVariable(&mod_q3bsp_nolightmaps);
        Cvar_RegisterVariable(&mod_q3bsp_sRGBlightmaps);
+       Cvar_RegisterVariable(&mod_q3bsp_lightgrid_texture);
+       Cvar_RegisterVariable(&mod_q3bsp_lightgrid_world_surfaces);
+       Cvar_RegisterVariable(&mod_q3bsp_lightgrid_bsp_surfaces);
        Cvar_RegisterVariable(&mod_q3bsp_tracelineofsight_brushes);
        Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping);
        Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping_scale);
        Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping_bias);
        Cvar_RegisterVariable(&mod_q3shader_default_polygonfactor);
        Cvar_RegisterVariable(&mod_q3shader_default_polygonoffset);
+       Cvar_RegisterVariable(&mod_q3shader_default_refractive_index);
        Cvar_RegisterVariable(&mod_q3shader_force_addalpha);
        Cvar_RegisterVariable(&mod_q3shader_force_terrain_alphaflag);
        Cvar_RegisterVariable(&mod_q1bsp_polygoncollisions);
-       Cvar_RegisterVariable(&mod_collision_bih);
        Cvar_RegisterVariable(&mod_recalculatenodeboxes);
 
        // these games were made for older DP engines and are no longer
@@ -142,14 +148,14 @@ void Mod_BrushInit(void)
        mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
 }
 
-static mleaf_t *Mod_Q1BSP_PointInLeaf(dp_model_t *model, const vec3_t p)
+static mleaf_t *Mod_BSP_PointInLeaf(dp_model_t *model, const vec3_t p)
 {
        mnode_t *node;
 
        if (model == NULL)
                return NULL;
 
-       // LordHavoc: modified to start at first clip node,
+       // LadyHavoc: modified to start at first clip node,
        // in other words: first node of the (sub)model
        node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
        while (node->plane)
@@ -162,7 +168,7 @@ static void Mod_Q1BSP_AmbientSoundLevelsForPoint(dp_model_t *model, const vec3_t
 {
        int i;
        mleaf_t *leaf;
-       leaf = Mod_Q1BSP_PointInLeaf(model, p);
+       leaf = Mod_BSP_PointInLeaf(model, p);
        if (leaf)
        {
                i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
@@ -177,7 +183,7 @@ static void Mod_Q1BSP_AmbientSoundLevelsForPoint(dp_model_t *model, const vec3_t
                memset(out, 0, outsize);
 }
 
-static int Mod_Q1BSP_FindBoxClusters(dp_model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
+static int Mod_BSP_FindBoxClusters(dp_model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
 {
        int numclusters = 0;
        int nodestackindex = 0;
@@ -243,7 +249,7 @@ static int Mod_Q1BSP_FindBoxClusters(dp_model_t *model, const vec3_t mins, const
        return numclusters;
 }
 
-static int Mod_Q1BSP_BoxTouchingPVS(dp_model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
+static int Mod_BSP_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];
@@ -314,7 +320,7 @@ static int Mod_Q1BSP_BoxTouchingPVS(dp_model_t *model, const unsigned char *pvs,
        return false;
 }
 
-static int Mod_Q1BSP_BoxTouchingLeafPVS(dp_model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
+static int Mod_BSP_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];
@@ -385,7 +391,7 @@ static int Mod_Q1BSP_BoxTouchingLeafPVS(dp_model_t *model, const unsigned char *
        return false;
 }
 
-static int Mod_Q1BSP_BoxTouchingVisibleLeafs(dp_model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
+static int Mod_BSP_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];
@@ -560,32 +566,13 @@ static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *in
        for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
        {
                surface = info->model->data_surfaces + *mark;
+               if(!surface->texture)
+                       continue;
                if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
                {
-                       if(surface->deprecatedq3num_bboxstride > 0)
+                       for (k = 0;k < surface->num_triangles;k++)
                        {
-                               int i, cnt, tri;
-                               cnt = (surface->num_triangles + surface->deprecatedq3num_bboxstride - 1) / surface->deprecatedq3num_bboxstride;
-                               for(i = 0; i < cnt; ++i)
-                               {
-                                       if(BoxesOverlap(surface->deprecatedq3data_bbox6f + i * 6, surface->deprecatedq3data_bbox6f + i * 6 + 3, info->absmin, info->absmax))
-                                       {
-                                               for(k = 0; k < surface->deprecatedq3num_bboxstride; ++k)
-                                               {
-                                                       tri = i * surface->deprecatedq3num_bboxstride + k;
-                                                       if(tri >= surface->num_triangles)
-                                                               break;
-                                                       Mod_Q1BSP_FindNonSolidLocation_r_Triangle(info, surface, tri);
-                                               }
-                                       }
-                               }
-                       }
-                       else
-                       {
-                               for (k = 0;k < surface->num_triangles;k++)
-                               {
-                                       Mod_Q1BSP_FindNonSolidLocation_r_Triangle(info, surface, k);
-                               }
+                               Mod_Q1BSP_FindNonSolidLocation_r_Triangle(info, surface, k);
                        }
                }
        }
@@ -608,7 +595,7 @@ static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, m
        }
 }
 
-static void Mod_Q1BSP_FindNonSolidLocation(dp_model_t *model, const vec3_t in, vec3_t out, float radius)
+static void Mod_BSP_FindNonSolidLocation(dp_model_t *model, const vec3_t in, vec3_t out, float radius)
 {
        int i;
        findnonsolidlocationinfo_t info;
@@ -993,7 +980,7 @@ static void Mod_Q1BSP_TraceBox(struct model_s *model, const frameblend_t *frameb
                rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
        else if (model->brush.ishlbsp)
        {
-               // LordHavoc: this has to have a minor tolerance (the .1) because of
+               // LadyHavoc: this has to have a minor tolerance (the .1) because of
                // minor float precision errors from the box being transformed around
                if (boxsize[0] < 32.1)
                {
@@ -1007,7 +994,7 @@ static void Mod_Q1BSP_TraceBox(struct model_s *model, const frameblend_t *frameb
        }
        else
        {
-               // LordHavoc: this has to have a minor tolerance (the .1) because of
+               // LadyHavoc: this has to have a minor tolerance (the .1) because of
                // minor float precision errors from the box being transformed around
                if (boxsize[0] < 32.1)
                        rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
@@ -1196,7 +1183,7 @@ static qboolean Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t s
        return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
 }
 
-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)
+static int Mod_BSP_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;
@@ -1238,7 +1225,7 @@ static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(dp_model_t *model, vec3_t ambie
                }
 
                // go down front side
-               if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
+               if (node->children[side]->plane && Mod_BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
                        return true;    // hit something
 
                // check for impact on this node
@@ -1257,6 +1244,8 @@ static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(dp_model_t *model, vec3_t ambie
                        surface = model->data_surfaces + node->firstsurface;
                        for (i = 0;i < node->numsurfaces;i++, surface++)
                        {
+                               if(!surface->texture)
+                                       continue;
                                if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo || !surface->lightmapinfo->samples)
                                        continue;       // no lightmaps
 
@@ -1305,11 +1294,11 @@ static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(dp_model_t *model, vec3_t ambie
                                        w11 = (    dsfrac) * (    dtfrac) * (1.0f / 128.0f);
 
                                        // values for pointer math
-                                       line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
-                                       size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
+                                       line3 = lmwidth * 3; // LadyHavoc: *3 for colored lighting
+                                       size3 = lmwidth * lmheight * 3; // LadyHavoc: *3 for colored lighting
 
                                        // look up the pixel
-                                       lightmap = surface->lightmapinfo->samples + dti * line3 + dsi*3; // LordHavoc: *3 for colored lighting
+                                       lightmap = surface->lightmapinfo->samples + dti * line3 + dsi*3; // LadyHavoc: *3 for colored lighting
 
                                        // bilinear filter each lightmap style, and sum them
                                        for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
@@ -1338,7 +1327,7 @@ static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(dp_model_t *model, vec3_t ambie
        return false;
 }
 
-static void Mod_Q1BSP_LightPoint(dp_model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
+static void Mod_BSP_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);
@@ -1350,7 +1339,7 @@ static void Mod_Q1BSP_LightPoint(dp_model_t *model, const vec3_t p, vec3_t ambie
                return;
        }
 
-       Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, p[0], p[1], p[2] + 0.125, p[2] - 65536);
+       Mod_BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, p[0], p[1], p[2] + 0.125, p[2] - 65536);
 }
 
 static const texture_t *Mod_Q1BSP_TraceLineAgainstSurfacesFindTextureOnNode(RecursiveHullCheckTraceInfo_t *t, const dp_model_t *model, const mnode_t *node, double mid[3])
@@ -1373,6 +1362,8 @@ static const texture_t *Mod_Q1BSP_TraceLineAgainstSurfacesFindTextureOnNode(Recu
        surface = model->data_surfaces + node->firstsurface;
        for (i = 0;i < node->numsurfaces;i++, surface++)
        {
+               if(!surface->texture)
+                       continue;
                // skip surfaces whose bounding box does not include the point
 //             if (!BoxesOverlap(mid, mid, surface->mins, surface->maxs))
 //                     continue;
@@ -1463,7 +1454,7 @@ static int Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(RecursiveHullCheck
                }
 
                // the line intersects, find intersection point
-               // LordHavoc: this uses the original trace for maximum accuracy
+               // LadyHavoc: this uses the original trace for maximum accuracy
                if (plane->type < 3)
                {
                        t1 = t->start[plane->type] - plane->dist;
@@ -1535,7 +1526,7 @@ static void Mod_Q1BSP_TraceLineAgainstSurfaces(struct model_s *model, const fram
        VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
 }
 
-static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
+static void Mod_BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
 {
        int c;
        unsigned char *outstart = out;
@@ -1543,7 +1534,7 @@ static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char
        {
                if (in == inend)
                {
-                       Con_Printf("Mod_Q1BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
+                       Con_Printf("Mod_BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
                        return;
                }
                c = *in++;
@@ -1553,14 +1544,14 @@ static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char
                {
                        if (in == inend)
                        {
-                               Con_Printf("Mod_Q1BSP_DecompressVis: input underrun (during zero-run) on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
+                               Con_Printf("Mod_BSP_DecompressVis: input underrun (during zero-run) on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
                                return;
                        }
                        for (c = *in++;c > 0;c--)
                        {
                                if (out == outend)
                                {
-                                       Con_Printf("Mod_Q1BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
+                                       Con_Printf("Mod_BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
                                        return;
                                }
                                *out++ = 0;
@@ -1571,12 +1562,12 @@ static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char
 
 /*
 =============
-R_Q1BSP_LoadSplitSky
+Mod_Q1BSP_LoadSplitSky
 
 A sky texture is 256*128, with the right side being a masked overlay
 ==============
 */
-static void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
+static void Mod_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
 {
        int x, y;
        int w = width/2;
@@ -1700,7 +1691,7 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                }
 
                // bump it back to where we started parsing
-               sb->readcount = watermark;
+               sb->readcount = (int)watermark;
 
                firstskynoshadowtexture = loadmodel->num_textures;
                loadmodel->num_textures += numsky;
@@ -1745,6 +1736,7 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                // clear water settings
                tx->reflectmin = 0;
                tx->reflectmax = 1;
+               tx->refractive_index = mod_q3shader_default_refractive_index.value;
                tx->refractfactor = 1;
                Vector4Set(tx->refractcolor4f, 1, 1, 1, 1);
                tx->reflectfactor = 1;
@@ -1771,7 +1763,7 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                s += 5;
        FS_StripExtension(s, mapname, sizeof(mapname));
 
-       // LordHavoc: mostly rewritten map texture loader
+       // LadyHavoc: mostly rewritten map texture loader
        for (i = 0;i < nummiptex;i++)
        {
                doffset = MSG_ReadLittleLong(sb);
@@ -1819,18 +1811,25 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                if ((mtwidth & 15) || (mtheight & 15))
                        Con_DPrintf("%s: warning: texture \"%s\" is not 16 aligned\n", loadmodel->name, name);
 
-               // LordHavoc: force all names to lowercase
+               // LadyHavoc: force all names to lowercase
                for (j = 0;name[j];j++)
                        if (name[j] >= 'A' && name[j] <= 'Z')
                                name[j] += 'a' - 'A';
 
-               // LordHavoc: backup the texture_t because q3 shader loading overwrites it
+               tx = loadmodel->data_textures + i;
+               // try to load shader or external textures, but first we have to backup the texture_t because shader loading overwrites it even if it fails
                backuptex = loadmodel->data_textures[i];
-               if (name[0] && Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, loadmodel->data_textures + i, name, false, false, 0, MATERIALFLAG_WALL))
+               if (name[0] && /* HACK */ strncmp(name, "sky", 3) /* END HACK */ && (Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, loadmodel->data_textures + i, va(vabuf, sizeof(vabuf), "%s/%s", mapname, name), false, false, TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL) ||
+                               Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, loadmodel->data_textures + i, va(vabuf, sizeof(vabuf), "%s"   , name), false, false, TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL)))
+               {
+                       // set the width/height fields which are used for parsing texcoords in this bsp format
+                       tx->width = mtwidth;
+                       tx->height = mtheight;
                        continue;
+               }
+               // no luck with loading shaders or external textures - restore the in-progress texture loading
                loadmodel->data_textures[i] = backuptex;
 
-               tx = loadmodel->data_textures + i;
                strlcpy(tx->name, name, sizeof(tx->name));
                tx->width = mtwidth;
                tx->height = mtheight;
@@ -1873,67 +1872,62 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
 
                if (cls.state != ca_dedicated)
                {
-                       // LordHavoc: HL sky textures are entirely different than quake
-                       if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == mtheight * 2)
+                       skinframe_t *skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s/%s", mapname, tx->name), TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, false, false);
+                       if ((!skinframe &&
+                           !(skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s", tx->name), TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, false, false)))
+                               // HACK: It loads custom skybox textures as a wall if loaded as a skinframe.
+                               || !strncmp(tx->name, "sky", 3))
                        {
-                               data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s/%s", mapname, tx->name), false, false, false, NULL);
-                               if (!data)
-                                       data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s", tx->name), false, false, false, NULL);
-                               if (data && image_width == image_height * 2)
+                               // did not find external texture via shader loading, load it from the bsp or wad3
+                               if (loadmodel->brush.ishlbsp)
                                {
-                                       R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
-                                       Mem_Free(data);
+                                       // internal texture overrides wad
+                                       unsigned char* pixels, * freepixels;
+                                       pixels = freepixels = NULL;
+                                       if (mtdata)
+                                               pixels = W_ConvertWAD3TextureBGRA(&miptexsb);
+                                       if (pixels == NULL)
+                                               pixels = freepixels = W_GetTextureBGRA(tx->name);
+                                       if (pixels != NULL)
+                                       {
+                                               tx->width = image_width;
+                                               tx->height = image_height;
+                                               tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP, pixels, image_width, image_height, image_width, image_height, CRC_Block(pixels, image_width * image_height * 4), true);
+                                       }
+                                       if (freepixels)
+                                               Mem_Free(freepixels);
                                }
-                               else if (mtdata != NULL)
-                                       R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
-                       }
-                       else
-                       {
-                               skinframe_t *skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s/%s", mapname, tx->name), TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, false, false);
-                               if (!skinframe)
-                                       skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s", tx->name), TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, false, false);
-                               if (skinframe)
-                                       tx->offsetmapping = OFFSETMAPPING_DEFAULT; // allow offsetmapping on external textures without a q3 shader
-                               if (!skinframe)
+                               else if (!strncmp(tx->name, "sky", 3) && mtwidth == mtheight * 2)
                                {
-                                       // did not find external texture, load it from the bsp or wad3
-                                       if (loadmodel->brush.ishlbsp)
+                                       data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s/%s", mapname, tx->name), false, false, false, NULL);
+                                       if (!data)
+                                               data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s", tx->name), false, false, false, NULL);
+                                       if (data && image_width == image_height * 2)
                                        {
-                                               // internal texture overrides wad
-                                               unsigned char *pixels, *freepixels;
-                                               pixels = freepixels = NULL;
-                                               if (mtdata)
-                                                       pixels = W_ConvertWAD3TextureBGRA(&miptexsb);
-                                               if (pixels == NULL)
-                                                       pixels = freepixels = W_GetTextureBGRA(tx->name);
-                                               if (pixels != NULL)
-                                               {
-                                                       tx->width = image_width;
-                                                       tx->height = image_height;
-                                                       skinframe = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP, pixels, image_width, image_height, image_width, image_height, CRC_Block(pixels, image_width * image_height * 4), true);
-                                               }
-                                               if (freepixels)
-                                                       Mem_Free(freepixels);
+                                               Mod_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
+                                               Mem_Free(data);
                                        }
-                                       else if (mtdata) // texture included
-                                               skinframe = R_SkinFrame_LoadInternalQuake(tx->name, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP, false, r_fullbrights.integer, mtdata, tx->width, tx->height);
+                                       else if (mtdata != NULL)
+                                               Mod_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
                                }
-                               // if skinframe is still NULL the "missing" texture has already been assigned to this
-                               if (skinframe)
-                                       tx->materialshaderpass->skinframes[0] = skinframe;
+                               else if (mtdata) // texture included
+                                       tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalQuake(tx->name, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP, false, r_fullbrights.integer, mtdata, tx->width, tx->height);
+                               // if mtdata is NULL, the "missing" texture has already been assigned to this
+                               // LadyHavoc: some Tenebrae textures get replaced by black
+                               if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
+                                       tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_MIPMAP | TEXF_ALPHA, zerotrans, 1, 1, 0, 0, 0, false);
+                               else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
+                                       tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, 0, zeroopaque, 1, 1, 0, 0, 0, false);
                        }
-                       // LordHavoc: some Tenebrae textures get replaced by black
-                       if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
-                               tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_MIPMAP | TEXF_ALPHA, zerotrans, 1, 1, 0, 0, 0, false);
-                       else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
-                               tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, 0, zeroopaque, 1, 1, 0, 0, 0, false);
+                       else
+                               tx->materialshaderpass->skinframes[0] = skinframe;
                        tx->currentskinframe = tx->materialshaderpass->skinframes[0];
                }
 
                tx->basematerialflags = MATERIALFLAG_WALL;
                if (tx->name[0] == '*')
                {
-                       // LordHavoc: some turbulent textures should not be affected by wateralpha
+                       // LadyHavoc: some turbulent textures should not be affected by wateralpha
                        if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
                                tx->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_REFLECTION;
                        else if (!strncmp(tx->name,"*lava",5)
@@ -2104,15 +2098,15 @@ static void Mod_Q1BSP_LoadLighting(sizebuf_t *sb)
        char litfilename[MAX_QPATH];
        char dlitfilename[MAX_QPATH];
        fs_offset_t filesize;
-       if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
+       if (loadmodel->brush.ishlbsp) // LadyHavoc: load the colored lighting data straight
        {
                loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
                for (i = 0;i < sb->cursize;i++)
                        loadmodel->brushq1.lightdata[i] = sb->data[i] >>= 1;
        }
-       else // LordHavoc: bsp version 29 (normal white lighting)
+       else // LadyHavoc: bsp version 29 (normal white lighting)
        {
-               // LordHavoc: hope is not lost yet, check for a .lit file to load
+               // LadyHavoc: hope is not lost yet, check for a .lit file to load
                strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
                FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
                strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
@@ -2165,7 +2159,7 @@ static void Mod_Q1BSP_LoadLighting(sizebuf_t *sb)
                                data = NULL;
                        }
                }
-               // LordHavoc: oh well, expand the white lighting data
+               // LadyHavoc: oh well, expand the white lighting data
                if (!sb->cursize)
                        return;
                loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize*3);
@@ -2284,14 +2278,14 @@ static void Mod_Q1BSP_LoadVertexes(sizebuf_t *sb)
        }
 }
 
-static void Mod_Q1BSP_LoadSubmodels(sizebuf_t *sb, hullinfo_t *hullinfo)
+static void Mod_BSP_LoadSubmodels(sizebuf_t *sb, hullinfo_t *hullinfo)
 {
        mmodel_t        *out;
        int                     i, j, count;
-       int                     structsize = (48+4*hullinfo->filehulls);
+       int                     structsize = hullinfo ? (48+4*hullinfo->filehulls) : 48;
 
        if (sb->cursize % structsize)
-               Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
+               Host_Error ("Mod_BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
 
        count = sb->cursize / structsize;
        out = (mmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
@@ -2311,9 +2305,15 @@ static void Mod_Q1BSP_LoadSubmodels(sizebuf_t *sb, hullinfo_t *hullinfo)
                out->origin[0] = MSG_ReadLittleFloat(sb);
                out->origin[1] = MSG_ReadLittleFloat(sb);
                out->origin[2] = MSG_ReadLittleFloat(sb);
-               for (j = 0; j < hullinfo->filehulls; j++)
-                       out->headnode[j] = MSG_ReadLittleLong(sb);
-               out->visleafs  = MSG_ReadLittleLong(sb);
+               if(hullinfo)
+               {
+                       for (j = 0; j < hullinfo->filehulls; j++)
+                               out->headnode[j] = MSG_ReadLittleLong(sb);
+                       out->visleafs  = MSG_ReadLittleLong(sb);
+               }
+               else // Quake 2 has only one hull
+                       out->headnode[0] = MSG_ReadLittleLong(sb);
+
                out->firstface = MSG_ReadLittleLong(sb);
                out->numfaces  = MSG_ReadLittleLong(sb);
        }
@@ -2707,9 +2707,9 @@ static void Mod_Q1BSP_LoadFaces(sizebuf_t *sb)
                        }
 #endif
                }
-               else if (loadmodel->brush.ishlbsp || loadmodel->brush.isq2bsp) // LordHavoc: HalfLife map (bsp version 30)
+               else if (loadmodel->brush.ishlbsp || loadmodel->brush.isq2bsp) // LadyHavoc: HalfLife map (bsp version 30)
                        surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + lightmapoffset;
-               else // LordHavoc: white lighting (bsp version 29)
+               else // LadyHavoc: white lighting (bsp version 29)
                {
                        surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (lightmapoffset * 3);
                        if (loadmodel->brushq1.nmaplightdata)
@@ -2802,7 +2802,7 @@ static void Mod_Q1BSP_LoadFaces(sizebuf_t *sb)
                                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
+                               // LadyHavoc: 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;
@@ -2834,16 +2834,16 @@ static void Mod_Q1BSP_LoadFaces(sizebuf_t *sb)
                        loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
 }
 
-static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
+static void Mod_BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
 {
        //if (node->parent)
-       //      Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion");
+       //      Host_Error("Mod_BSP_LoadNodes_RecursiveSetParent: runaway recursion");
        node->parent = parent;
        if (node->plane)
        {
                // this is a node, recurse to children
-               Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
-               Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
+               Mod_BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
+               Mod_BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
                // combine supercontents of children
                node->combinedsupercontents = node->children[0]->combinedsupercontents | node->children[1]->combinedsupercontents;
        }
@@ -2940,7 +2940,7 @@ static void Mod_Q1BSP_LoadNodes(sizebuf_t *sb)
 
                for (j=0 ; j<2 ; j++)
                {
-                       // LordHavoc: this code supports broken bsp files produced by
+                       // LadyHavoc: this code supports broken bsp files produced by
                        // arguire qbsp which can produce more than 32768 nodes, any value
                        // below count is assumed to be a node number, any other value is
                        // assumed to be a leaf number
@@ -2972,7 +2972,7 @@ static void Mod_Q1BSP_LoadNodes(sizebuf_t *sb)
                }
        }
 
-       Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);      // sets nodes and leafs
+       Mod_BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);        // sets nodes and leafs
 }
 
 static void Mod_Q1BSP_LoadLeafs(sizebuf_t *sb)
@@ -3010,7 +3010,7 @@ static void Mod_Q1BSP_LoadLeafs(sizebuf_t *sb)
                        if (p >= loadmodel->brushq1.num_compressedpvs)
                                Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
                        else
-                               Mod_Q1BSP_DecompressVis(loadmodel->brushq1.data_compressedpvs + p, loadmodel->brushq1.data_compressedpvs + loadmodel->brushq1.num_compressedpvs, loadmodel->brush.data_pvsclusters + out->clusterindex * loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.data_pvsclusters + (out->clusterindex + 1) * loadmodel->brush.num_pvsclusterbytes);
+                               Mod_BSP_DecompressVis(loadmodel->brushq1.data_compressedpvs + p, loadmodel->brushq1.data_compressedpvs + loadmodel->brushq1.num_compressedpvs, loadmodel->brush.data_pvsclusters + out->clusterindex * loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.data_pvsclusters + (out->clusterindex + 1) * loadmodel->brush.num_pvsclusterbytes);
                }
 
                if (loadmodel->brush.isbsp2rmqe)
@@ -3137,7 +3137,7 @@ static void Mod_Q1BSP_LoadClipnodes(sizebuf_t *sb, hullinfo_t *hullinfo)
                }
                else
                {
-                       // LordHavoc: this code supports arguire qbsp's broken clipnodes indices (more than 32768 clipnodes), values above count are assumed to be contents values
+                       // LadyHavoc: this code supports arguire qbsp's broken clipnodes indices (more than 32768 clipnodes), values above count are assumed to be contents values
                        out->children[0] = (unsigned short)MSG_ReadLittleShort(sb);
                        out->children[1] = (unsigned short)MSG_ReadLittleShort(sb);
                        if (out->children[0] >= count)
@@ -3393,7 +3393,7 @@ static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
        node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
 }
 
-static void Mod_Q1BSP_FinalizePortals(void)
+static void Mod_BSP_FinalizePortals(void)
 {
        int i, j, numportals, numpoints, portalindex, portalrange = (int)Mem_ExpandableArray_IndexRange(&portalarray);
        portal_t *p;
@@ -3596,7 +3596,7 @@ static void RemovePortalFromNodes(portal_t *portal)
 static double *portalpointsbuffer;
 static int portalpointsbufferoffset;
 static int portalpointsbuffersize;
-static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
+static void Mod_BSP_RecursiveNodePortals(mnode_t *node)
 {
        int i, side;
        mnode_t *front, *back, *other_node;
@@ -3625,7 +3625,7 @@ static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
        front = node->children[0];
        back = node->children[1];
        if (front == back)
-               Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
+               Host_Error("Mod_BSP_RecursiveNodePortals: corrupt node hierarchy");
 
        // create the new portal by generating a polygon for the node plane,
        // and clipping it by all of the other portals(which came from nodes above this one)
@@ -3640,7 +3640,7 @@ static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
        {
                clipplane = portal->plane;
                if (portal->nodes[0] == portal->nodes[1])
-                       Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
+                       Host_Error("Mod_BSP_RecursiveNodePortals: portal has same node on both sides(1)");
                if (portal->nodes[0] == node)
                        side = 0;
                else if (portal->nodes[1] == node)
@@ -3651,7 +3651,7 @@ static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
                }
                else
                {
-                       Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
+                       Host_Error("Mod_BSP_RecursiveNodePortals: mislinked portal");
                        side = 0; // hush warning
                }
 
@@ -3664,12 +3664,12 @@ static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
 
        if (nodeportal->numpoints < 3)
        {
-               Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
+               Con_Print(CON_WARN "Mod_BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
                nodeportal->numpoints = 0;
        }
        else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
        {
-               Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
+               Con_Print(CON_WARN "Mod_BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
                nodeportal->numpoints = 0;
        }
 
@@ -3680,14 +3680,14 @@ static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
        for (portal = (portal_t *)node->portals;portal;portal = nextportal)
        {
                if (portal->nodes[0] == portal->nodes[1])
-                       Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
+                       Host_Error("Mod_BSP_RecursiveNodePortals: portal has same node on both sides(2)");
                if (portal->nodes[0] == node)
                        side = 0;
                else if (portal->nodes[1] == node)
                        side = 1;
                else
                {
-                       Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
+                       Host_Error("Mod_BSP_RecursiveNodePortals: mislinked portal");
                        side = 0; // hush warning
                }
                nextportal = portal->next[side];
@@ -3741,30 +3741,30 @@ static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
                }
        }
 
-       Mod_Q1BSP_RecursiveNodePortals(front);
-       Mod_Q1BSP_RecursiveNodePortals(back);
+       Mod_BSP_RecursiveNodePortals(front);
+       Mod_BSP_RecursiveNodePortals(back);
 
        portalpointsbufferoffset -= 6*MAX_PORTALPOINTS;
 }
 
-static void Mod_Q1BSP_MakePortals(void)
+static void Mod_BSP_MakePortals(void)
 {
        Mem_ExpandableArray_NewArray(&portalarray, loadmodel->mempool, sizeof(portal_t), 1020*1024/sizeof(portal_t));
        portalpointsbufferoffset = 0;
        portalpointsbuffersize = 6*MAX_PORTALPOINTS*128;
        portalpointsbuffer = (double *)Mem_Alloc(loadmodel->mempool, portalpointsbuffersize * sizeof(*portalpointsbuffer));
-       Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
+       Mod_BSP_RecursiveNodePortals(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
        Mem_Free(portalpointsbuffer);
        portalpointsbuffer = NULL;
        portalpointsbufferoffset = 0;
        portalpointsbuffersize = 0;
-       Mod_Q1BSP_FinalizePortals();
+       Mod_BSP_FinalizePortals();
        Mem_ExpandableArray_FreeArray(&portalarray);
 }
 
 //Returns PVS data for a given point
 //(note: can return NULL)
-static unsigned char *Mod_Q1BSP_GetPVS(dp_model_t *model, const vec3_t p)
+static unsigned char *Mod_BSP_GetPVS(dp_model_t *model, const vec3_t p)
 {
        mnode_t *node;
        node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
@@ -3776,7 +3776,7 @@ static unsigned char *Mod_Q1BSP_GetPVS(dp_model_t *model, const vec3_t p)
                return NULL;
 }
 
-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)
+static void Mod_BSP_FatPVS_RecursiveBSPNode(dp_model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
 {
        while (node->plane)
        {
@@ -3788,7 +3788,7 @@ static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(dp_model_t *model, const vec3_t or
                else
                {
                        // go down both sides
-                       Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
+                       Mod_BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
                        node = node->children[1];
                }
        }
@@ -3804,18 +3804,18 @@ static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(dp_model_t *model, const vec3_t or
 
 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
 //of the given point.
-static int Mod_Q1BSP_FatPVS(dp_model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength, qboolean merge)
+static int Mod_BSP_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);
-       if (r_novis.integer || r_trippy.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
+       if (r_novis.integer || r_trippy.integer || !model->brush.num_pvsclusters || !Mod_BSP_GetPVS(model, org))
        {
                memset(pvsbuffer, 0xFF, bytes);
                return bytes;
        }
        if (!merge)
                memset(pvsbuffer, 0, bytes);
-       Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
+       Mod_BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
        return bytes;
 }
 
@@ -3854,6 +3854,28 @@ static void Mod_Q1BSP_RoundUpToHullSize(dp_model_t *cmodel, const vec3_t inmins,
 
 void Mod_CollisionBIH_TraceLineAgainstSurfaces(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask);
 
+void Mod_2PSB_Load(dp_model_t *mod, void *buffer, void *bufferend)
+{
+       mod->brush.isbsp2 = true;
+       mod->brush.isbsp2rmqe = true; // like bsp2 except leaf/node bounds are 16bit (unexpanded)
+       mod->modeldatatypestring = "Q1BSP2rmqe";
+       Mod_Q1BSP_Load(mod, buffer, bufferend);
+}
+
+void Mod_BSP2_Load(dp_model_t *mod, void *buffer, void *bufferend)
+{
+       mod->brush.isbsp2 = true;
+       mod->modeldatatypestring = "Q1BSP2";
+       Mod_Q1BSP_Load(mod, buffer, bufferend);
+}
+
+void Mod_HLBSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
+{
+       mod->brush.ishlbsp = true;
+       mod->modeldatatypestring = "HLBSP";
+       Mod_Q1BSP_Load(mod, buffer, bufferend);
+}
+
 void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 {
        int i, j, k;
@@ -3878,29 +3900,9 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        mod->brush.isq3bsp = false;
        mod->brush.skymasking = true;
        i = MSG_ReadLittleLong(&sb);
-       switch(i)
-       {
-       case BSPVERSION:
+
+       if(!mod->modeldatatypestring)
                mod->modeldatatypestring = "Q1BSP";
-               break;
-       case 30:
-               mod->brush.ishlbsp = true;
-               mod->modeldatatypestring = "HLBSP";
-               break;
-       case ('2' + 'P' * 256 + 'S' * 65536 + 'B' * 16777216):
-               mod->brush.isbsp2 = true;
-               mod->brush.isbsp2rmqe = true; // like bsp2 except leaf/node bounds are 16bit (unexpanded)
-               mod->modeldatatypestring = "Q1BSP2rmqe";
-               break;
-       case ('B' + 'S' * 256 + 'P' * 65536 + '2' * 16777216):
-               mod->brush.isbsp2 = true;
-               mod->modeldatatypestring = "Q1BSP2";
-               break;
-       default:
-               mod->modeldatatypestring = "Unknown BSP";
-               Host_Error("Mod_Q1BSP_Load: %s has wrong version number %i: supported versions are 29 (Quake), 30 (Half-Life), \"BSP2\" or \"2PSB\" (rmqe)", mod->name, i);
-               return;
-       }
 
 // fill in hull info
        VectorClear (hullinfo.hullsizes[0][0]);
@@ -3943,25 +3945,25 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
        mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
        mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
-       mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
-       mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
-       mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
-       mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
-       mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
-       mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
-       mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
-       mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
+       mod->brush.GetPVS = Mod_BSP_GetPVS;
+       mod->brush.FatPVS = Mod_BSP_FatPVS;
+       mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
+       mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
+       mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
+       mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
+       mod->brush.LightPoint = Mod_BSP_LightPoint;
+       mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
        mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
        mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
-       mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
-       mod->Draw = R_Q1BSP_Draw;
-       mod->DrawDepth = R_Q1BSP_DrawDepth;
-       mod->DrawDebug = R_Q1BSP_DrawDebug;
-       mod->DrawPrepass = R_Q1BSP_DrawPrepass;
-       mod->GetLightInfo = R_Q1BSP_GetLightInfo;
-       mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
-       mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
-       mod->DrawLight = R_Q1BSP_DrawLight;
+       mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
+       mod->Draw = R_Mod_Draw;
+       mod->DrawDepth = R_Mod_DrawDepth;
+       mod->DrawDebug = R_Mod_DrawDebug;
+       mod->DrawPrepass = R_Mod_DrawPrepass;
+       mod->GetLightInfo = R_Mod_GetLightInfo;
+       mod->CompileShadowMap = R_Mod_CompileShadowMap;
+       mod->DrawShadowMap = R_Mod_DrawShadowMap;
+       mod->DrawLight = R_Mod_DrawLight;
 
 // load into heap
 
@@ -3991,7 +3993,7 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        Mod_Q1BSP_LoadLeaffaces(&lumpsb[LUMP_MARKSURFACES]);
        Mod_Q1BSP_LoadVisibility(&lumpsb[LUMP_VISIBILITY]);
        // load submodels before leafs because they contain the number of vis leafs
-       Mod_Q1BSP_LoadSubmodels(&lumpsb[LUMP_MODELS], &hullinfo);
+       Mod_BSP_LoadSubmodels(&lumpsb[LUMP_MODELS], &hullinfo);
        Mod_Q1BSP_LoadLeafs(&lumpsb[LUMP_LEAFS]);
        Mod_Q1BSP_LoadNodes(&lumpsb[LUMP_NODES]);
        Mod_Q1BSP_LoadClipnodes(&lumpsb[LUMP_CLIPNODES], &hullinfo);
@@ -4011,7 +4013,7 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 
        Mod_Q1BSP_MakeHull0();
        if (mod_bsp_portalize.integer)
-               Mod_Q1BSP_MakePortals();
+               Mod_BSP_MakePortals();
 
        mod->numframes = 2;             // regular and alternate animation
        mod->numskins = 1;
@@ -4019,7 +4021,7 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        if (loadmodel->brush.numsubmodels)
                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
+       // LadyHavoc: to clear the fog around the original quake submodel code, I
        // will explain:
        // first of all, some background info on the submodels:
        // model 0 is the map model (the world, named maps/e1m1.bsp for example)
@@ -4030,7 +4032,7 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        // the number i), at the end of the loop it duplicates the model to become
        // the next submodel, and loops back to set up the new submodel.
 
-       // LordHavoc: now the explanation of my sane way (which works identically):
+       // LadyHavoc: 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;
@@ -4054,7 +4056,7 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        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
+               // LadyHavoc: this code was originally at the end of this loop, but
                // has been transformed to something more readable at the start here.
 
                if (i > 0)
@@ -4099,7 +4101,7 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
                mod->nummodelsurfaces = bm->numfaces;
 
                // set node/leaf parents for this submodel
-               Mod_Q1BSP_LoadNodes_RecursiveSetParent(mod->brush.data_nodes + mod->brushq1.hulls[0].firstclipnode, NULL);
+               Mod_BSP_LoadNodes_RecursiveSetParent(mod->brush.data_nodes + mod->brushq1.hulls[0].firstclipnode, NULL);
 
                // this has to occur after hull info has been set, as it uses Mod_Q1BSP_PointSuperContents
                Mod_Q1BSP_AssignNoShadowSkySurfaces(mod);
@@ -4140,13 +4142,13 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
                                if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
                                        break;
                        if (j < mod->nummodelsurfaces)
-                               mod->DrawSky = R_Q1BSP_DrawSky;
+                               mod->DrawSky = R_Mod_DrawSky;
 
                        for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
-                               if (surface->texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
+                               if (surface->texture && surface->texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
                                        break;
                        if (j < mod->nummodelsurfaces)
-                               mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
+                               mod->DrawAddWaterPlanes = R_Mod_DrawAddWaterPlanes;
 
                        // build lightstyle update chains
                        // (used to rapidly mark lightmapupdateflags on many surfaces
@@ -4188,8 +4190,8 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
                }
                else
                {
-                       // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
-                       Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
+                       // LadyHavoc: empty submodel(lacrima.bsp has such a glitch)
+                       Con_Printf(CON_WARN "warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
                }
                //mod->brushq1.num_visleafs = bm->visleafs;
 
@@ -4288,7 +4290,7 @@ static void Mod_Q2BSP_LoadVisibility(sizebuf_t *sb)
                /*int phsofs = */MSG_ReadLittleLong(sb);
                // decompress the vis data for this cluster
                // (note this accesses the underlying data store of sb, which is kind of evil)
-               Mod_Q1BSP_DecompressVis(sb->data + pvsofs, sb->data + sb->cursize, loadmodel->brush.data_pvsclusters + i * loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.data_pvsclusters + (i+1) * loadmodel->brush.num_pvsclusterbytes);
+               Mod_BSP_DecompressVis(sb->data + pvsofs, sb->data + sb->cursize, loadmodel->brush.data_pvsclusters + i * loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.data_pvsclusters + (i+1) * loadmodel->brush.num_pvsclusterbytes);
        }
        // hush the loading error check later - we had to do random access on this lump, so we didn't read to the end
        sb->readcount = sb->cursize;
@@ -4360,7 +4362,7 @@ static void Mod_Q2BSP_LoadNodes(sizebuf_t *sb)
                }
        }
 
-       Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);      // sets nodes and leafs
+       Mod_BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);        // sets nodes and leafs
 }
 
 static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
@@ -4570,7 +4572,7 @@ static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
 
 static void Mod_Q2BSP_LoadLighting(sizebuf_t *sb)
 {
-       // LordHavoc: this fits exactly the same format that we use in .lit files
+       // LadyHavoc: this fits exactly the same format that we use in .lit files
        loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
        MSG_ReadBytes(sb, sb->cursize, loadmodel->brushq1.lightdata);
 }
@@ -4815,40 +4817,6 @@ static void Mod_Q2BSP_LoadAreaPortals(sizebuf_t *sb)
        sb->readcount = sb->cursize;
 }
 
-static void Mod_Q2BSP_LoadSubmodels(sizebuf_t *sb)
-{
-       mmodel_t        *out;
-       int                     i, count;
-       int                     structsize = 48;
-
-       if (sb->cursize % structsize)
-               Host_Error ("Mod_Q2BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
-
-       count = sb->cursize / structsize;
-       out = (mmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
-
-       loadmodel->brushq1.submodels = out;
-       loadmodel->brush.numsubmodels = count;
-
-       // this is identical to the q1 submodel structure except for having 1 hull
-       for (i = 0; i < count; i++, out++)
-       {
-               // spread out the mins / maxs by a pixel
-               out->mins[0] = MSG_ReadLittleFloat(sb) - 1;
-               out->mins[1] = MSG_ReadLittleFloat(sb) - 1;
-               out->mins[2] = MSG_ReadLittleFloat(sb) - 1;
-               out->maxs[0] = MSG_ReadLittleFloat(sb) + 1;
-               out->maxs[1] = MSG_ReadLittleFloat(sb) + 1;
-               out->maxs[2] = MSG_ReadLittleFloat(sb) + 1;
-               out->origin[0] = MSG_ReadLittleFloat(sb);
-               out->origin[1] = MSG_ReadLittleFloat(sb);
-               out->origin[2] = MSG_ReadLittleFloat(sb);
-               out->headnode[0] = MSG_ReadLittleLong(sb);
-               out->firstface = MSG_ReadLittleLong(sb);
-               out->numfaces  = MSG_ReadLittleLong(sb);
-       }
-}
-
 static void Mod_Q2BSP_FindSubmodelBrushRange_r(dp_model_t *mod, mnode_t *node, int *first, int *last)
 {
        int i;
@@ -4921,25 +4889,25 @@ static void Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
        mod->brush.SuperContentsFromNativeContents = Mod_Q2BSP_SuperContentsFromNativeContents;
        mod->brush.NativeContentsFromSuperContents = Mod_Q2BSP_NativeContentsFromSuperContents;
-       mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
-       mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
-       mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
-       mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
-       mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
-       mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
-       mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
-       mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
+       mod->brush.GetPVS = Mod_BSP_GetPVS;
+       mod->brush.FatPVS = Mod_BSP_FatPVS;
+       mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
+       mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
+       mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
+       mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
+       mod->brush.LightPoint = Mod_BSP_LightPoint;
+       mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
        mod->brush.AmbientSoundLevelsForPoint = NULL;
        mod->brush.RoundUpToHullSize = NULL;
-       mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
-       mod->Draw = R_Q1BSP_Draw;
-       mod->DrawDepth = R_Q1BSP_DrawDepth;
-       mod->DrawDebug = R_Q1BSP_DrawDebug;
-       mod->DrawPrepass = R_Q1BSP_DrawPrepass;
-       mod->GetLightInfo = R_Q1BSP_GetLightInfo;
-       mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
-       mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
-       mod->DrawLight = R_Q1BSP_DrawLight;
+       mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
+       mod->Draw = R_Mod_Draw;
+       mod->DrawDepth = R_Mod_DrawDepth;
+       mod->DrawDebug = R_Mod_DrawDebug;
+       mod->DrawPrepass = R_Mod_DrawPrepass;
+       mod->GetLightInfo = R_Mod_GetLightInfo;
+       mod->CompileShadowMap = R_Mod_CompileShadowMap;
+       mod->DrawShadowMap = R_Mod_DrawShadowMap;
+       mod->DrawLight = R_Mod_DrawLight;
 
 // load into heap
 
@@ -4976,7 +4944,7 @@ static void Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        Mod_Q2BSP_LoadAreaPortals(&lumpsb[Q2LUMP_AREAPORTALS]);
        Mod_Q2BSP_LoadLeafs(&lumpsb[Q2LUMP_LEAFS]);
        Mod_Q2BSP_LoadNodes(&lumpsb[Q2LUMP_NODES]);
-       Mod_Q2BSP_LoadSubmodels(&lumpsb[Q2LUMP_MODELS]);
+       Mod_BSP_LoadSubmodels(&lumpsb[Q2LUMP_MODELS], NULL);
 
        for (i = 0; i < Q2HEADER_LUMPS; i++)
                if (lumpsb[i].readcount != lumpsb[i].cursize)
@@ -4994,7 +4962,7 @@ static void Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 
        // the MakePortals code works fine on the q2bsp data as well
        if (mod_bsp_portalize.integer)
-               Mod_Q1BSP_MakePortals();
+               Mod_BSP_MakePortals();
 
        mod->numframes = 0;             // q2bsp animations are kind of special, frame is unbounded...
        mod->numskins = 1;
@@ -5070,7 +5038,7 @@ static void Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
                        rootnode = mod->brush.data_nodes + bm->headnode[0];
                else
                        rootnode = (mnode_t*)(mod->brush.data_leafs + -1 - bm->headnode[0]);
-               Mod_Q1BSP_LoadNodes_RecursiveSetParent(rootnode, NULL);
+               Mod_BSP_LoadNodes_RecursiveSetParent(rootnode, NULL);
 
                // make the model surface list (used by shadowing/lighting)
                mod->sortedmodelsurfaces = (int *)datapointer;datapointer += mod->nummodelsurfaces * sizeof(int);
@@ -5117,13 +5085,13 @@ static void Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
                                if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
                                        break;
                        if (j < mod->nummodelsurfaces)
-                               mod->DrawSky = R_Q1BSP_DrawSky;
+                               mod->DrawSky = R_Mod_DrawSky;
 
                        for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
                                if (surface->texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
                                        break;
                        if (j < mod->nummodelsurfaces)
-                               mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
+                               mod->DrawAddWaterPlanes = R_Mod_DrawAddWaterPlanes;
 
                        // build lightstyle update chains
                        // (used to rapidly mark lightmapupdateflags on many surfaces
@@ -5165,7 +5133,7 @@ static void Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
                }
                else
                {
-                       Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
+                       Con_Printf(CON_WARN "warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
                }
                //mod->brushq1.num_visleafs = bm->visleafs;
 
@@ -5762,10 +5730,6 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
        if (loadmodel->brushq3.deluxemapping)
                loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
 
-       // allocate a texture pool if we need it
-       if (loadmodel->texturepool == NULL)
-               loadmodel->texturepool = R_AllocTexturePool();
-
        mergedpixels = (unsigned char *) Mem_Alloc(tempmempool, mergedwidth * mergedheight * 4);
        mergeddeluxepixels = loadmodel->brushq3.deluxemapping ? (unsigned char *) Mem_Alloc(tempmempool, mergedwidth * mergedheight * 4) : NULL;
        for (i = 0;i < count;i++)
@@ -5829,53 +5793,6 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
        }
 }
 
-static void Mod_Q3BSP_BuildBBoxes(const int *element3i, int num_triangles, const float *vertex3f, float **collisionbbox6f, int *collisionstride, int stride)
-{
-       int j, k, cnt, tri;
-       float *mins, *maxs;
-       const float *vert;
-       *collisionstride = stride;
-       if(stride > 0)
-       {
-               cnt = (num_triangles + stride - 1) / stride;
-               *collisionbbox6f = (float *) Mem_Alloc(loadmodel->mempool, sizeof(float[6]) * cnt);
-               for(j = 0; j < cnt; ++j)
-               {
-                       mins = &((*collisionbbox6f)[6 * j + 0]);
-                       maxs = &((*collisionbbox6f)[6 * j + 3]);
-                       for(k = 0; k < stride; ++k)
-                       {
-                               tri = j * stride + k;
-                               if(tri >= num_triangles)
-                                       break;
-                               vert = &(vertex3f[element3i[3 * tri + 0] * 3]);
-                               if(!k || vert[0] < mins[0]) mins[0] = vert[0];
-                               if(!k || vert[1] < mins[1]) mins[1] = vert[1];
-                               if(!k || vert[2] < mins[2]) mins[2] = vert[2];
-                               if(!k || vert[0] > maxs[0]) maxs[0] = vert[0];
-                               if(!k || vert[1] > maxs[1]) maxs[1] = vert[1];
-                               if(!k || vert[2] > maxs[2]) maxs[2] = vert[2];
-                               vert = &(vertex3f[element3i[3 * tri + 1] * 3]);
-                               if(vert[0] < mins[0]) mins[0] = vert[0];
-                               if(vert[1] < mins[1]) mins[1] = vert[1];
-                               if(vert[2] < mins[2]) mins[2] = vert[2];
-                               if(vert[0] > maxs[0]) maxs[0] = vert[0];
-                               if(vert[1] > maxs[1]) maxs[1] = vert[1];
-                               if(vert[2] > maxs[2]) maxs[2] = vert[2];
-                               vert = &(vertex3f[element3i[3 * tri + 2] * 3]);
-                               if(vert[0] < mins[0]) mins[0] = vert[0];
-                               if(vert[1] < mins[1]) mins[1] = vert[1];
-                               if(vert[2] < mins[2]) mins[2] = vert[2];
-                               if(vert[0] > maxs[0]) maxs[0] = vert[0];
-                               if(vert[1] > maxs[1]) maxs[1] = vert[1];
-                               if(vert[2] > maxs[2]) maxs[2] = vert[2];
-                       }
-               }
-       }
-       else
-               *collisionbbox6f = NULL;
-}
-
 typedef struct patchtess_s
 {
        patchinfo_t info;
@@ -6189,7 +6106,7 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                                }
                        if(xtess == -1)
                        {
-                               Con_Printf("ERROR: patch %d isn't preprocessed?!?\n", i);
+                               Con_Printf(CON_ERROR "ERROR: patch %d isn't preprocessed?!?\n", i);
                                xtess = ytess = cxtess = cytess = 0;
                        }
 
@@ -6223,42 +6140,15 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                        finalvertices = finalwidth * finalheight;
                        oldnumtriangles2 = finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
 
-                       // legacy collision geometry implementation
-                       out->deprecatedq3data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
-                       out->deprecatedq3data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
+                       // store collision geometry for BIH collision tree
                        out->num_collisionvertices = finalvertices;
                        out->num_collisiontriangles = finaltriangles;
-                       Q3PatchTesselateFloat(3, sizeof(float[3]), out->deprecatedq3data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, cxtess, cytess);
-                       Q3PatchTriangleElements(out->deprecatedq3data_collisionelement3i, finalwidth, finalheight, 0);
-
-                       //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
-                       Mod_SnapVertices(3, finalvertices, out->deprecatedq3data_collisionvertex3f, 1);
-
-                       out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(finaltriangles, out->deprecatedq3data_collisionelement3i, out->deprecatedq3data_collisionelement3i, out->deprecatedq3data_collisionvertex3f);
-
-                       // now optimize the collision mesh by finding triangle bboxes...
-                       Mod_Q3BSP_BuildBBoxes(out->deprecatedq3data_collisionelement3i, out->num_collisiontriangles, out->deprecatedq3data_collisionvertex3f, &out->deprecatedq3data_collisionbbox6f, &out->deprecatedq3num_collisionbboxstride, mod_q3bsp_curves_collisions_stride.integer);
-                       Mod_Q3BSP_BuildBBoxes(loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle, out->num_triangles, loadmodel->surfmesh.data_vertex3f, &out->deprecatedq3data_bbox6f, &out->deprecatedq3num_bboxstride, mod_q3bsp_curves_stride.integer);
-
-                       // store collision geometry for BIH collision tree
                        surfacecollisionvertex3f = loadmodel->brush.data_collisionvertex3f + collisionvertices * 3;
                        surfacecollisionelement3i = loadmodel->brush.data_collisionelement3i + collisiontriangles * 3;
                        Q3PatchTesselateFloat(3, sizeof(float[3]), surfacecollisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, cxtess, cytess);
                        Q3PatchTriangleElements(surfacecollisionelement3i, finalwidth, finalheight, collisionvertices);
                        Mod_SnapVertices(3, finalvertices, surfacecollisionvertex3f, 1);
-#if 1
-                       // remove this once the legacy code is removed
-                       {
-                               int nc = out->num_collisiontriangles;
-#endif
                        out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(finaltriangles, surfacecollisionelement3i, surfacecollisionelement3i, loadmodel->brush.data_collisionvertex3f);
-#if 1
-                               if(nc != out->num_collisiontriangles)
-                               {
-                                       Con_Printf("number of collision triangles differs between BIH and BSP. FAIL.\n");
-                               }
-                       }
-#endif
 
                        if (developer_extra.integer)
                                Con_DPrintf("Mod_Q3BSP_LoadFaces: %ix%i curve became %i:%i vertices / %i:%i triangles (%i:%i degenerate)\n", patchsize[0], patchsize[1], out->num_vertices, out->num_collisionvertices, oldnumtriangles, oldnumtriangles2, oldnumtriangles - out->num_triangles, oldnumtriangles2 - out->num_collisiontriangles);
@@ -6276,7 +6166,7 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                                invalidelements++;
                if (invalidelements)
                {
-                       Con_Printf("Mod_Q3BSP_LoadFaces: Warning: face #%i has %i invalid elements, type = %i, texture->name = \"%s\", texture->surfaceflags = %i, firstvertex = %i, numvertices = %i, firstelement = %i, numelements = %i, elements list:\n", i, invalidelements, type, out->texture->name, out->texture->surfaceflags, firstvertex, out->num_vertices, firstelement, out->num_triangles * 3);
+                       Con_Printf(CON_WARN "Mod_Q3BSP_LoadFaces: Warning: face #%i has %i invalid elements, type = %i, texture->name = \"%s\", texture->surfaceflags = %i, firstvertex = %i, numvertices = %i, firstelement = %i, numelements = %i, elements list:\n", i, invalidelements, type, out->texture->name, out->texture->surfaceflags, firstvertex, out->num_vertices, firstelement, out->num_triangles * 3);
                        for (j = 0;j < out->num_triangles * 3;j++)
                        {
                                Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
@@ -6556,7 +6446,7 @@ static void Mod_Q3BSP_LoadNodes(lump_t *l)
        }
 
        // set the parent pointers
-       Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
+       Mod_BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
 }
 
 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
@@ -6565,6 +6455,9 @@ static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
        q3dlightgrid_t *out;
        int count;
        int i;
+       int texturesize[3];
+       unsigned char *texturergba, *texturelayer[3], *texturepadding[2];
+       double lightgridmatrix[4][4];
 
        in = (q3dlightgrid_t *)(mod_base + l->fileofs);
        if (l->filelen % sizeof(*in))
@@ -6590,11 +6483,11 @@ static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
        {
                if (l->filelen < count * (int)sizeof(*in))
                {
-                       Con_Printf("Mod_Q3BSP_LoadLightGrid: invalid lightgrid lump size %i bytes, should be %i bytes (%ix%ix%i)", l->filelen, (int)(count * sizeof(*in)), loadmodel->brushq3.num_lightgrid_isize[0], loadmodel->brushq3.num_lightgrid_isize[1], loadmodel->brushq3.num_lightgrid_isize[2]);
+                       Con_Printf(CON_ERROR "Mod_Q3BSP_LoadLightGrid: invalid lightgrid lump size %i bytes, should be %i bytes (%ix%ix%i)", l->filelen, (int)(count * sizeof(*in)), loadmodel->brushq3.num_lightgrid_isize[0], loadmodel->brushq3.num_lightgrid_isize[1], loadmodel->brushq3.num_lightgrid_isize[2]);
                        return; // ignore the grid if we cannot understand it
                }
                if (l->filelen != count * (int)sizeof(*in))
-                       Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", (int)(count * sizeof(*in)), l->filelen);
+                       Con_Printf(CON_WARN "Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", (int)(count * sizeof(*in)), l->filelen);
                out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
                loadmodel->brushq3.data_lightgrid = out;
                loadmodel->brushq3.num_lightgrid = count;
@@ -6639,6 +6532,82 @@ static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
                                // all is good
                        }
                }
+
+               if (mod_q3bsp_lightgrid_texture.integer)
+               {
+                       // build a texture to hold the data for per-pixel sampling
+                       // this has 3 different kinds of data stacked in it:
+                       // ambient color
+                       // bent-normal light color
+                       // bent-normal light dir
+
+                       texturesize[0] = loadmodel->brushq3.num_lightgrid_isize[0];
+                       texturesize[1] = loadmodel->brushq3.num_lightgrid_isize[1];
+                       texturesize[2] = (loadmodel->brushq3.num_lightgrid_isize[2] + 2) * 3;
+                       texturergba = (unsigned char*)Mem_Alloc(loadmodel->mempool, texturesize[0] * texturesize[1] * texturesize[2] * sizeof(char[4]));
+                       texturelayer[0] = texturergba + loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * 4;
+                       texturelayer[1] = texturelayer[0] + (loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * (loadmodel->brushq3.num_lightgrid_isize[2] + 2)) * 4;
+                       texturelayer[2] = texturelayer[1] + (loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * (loadmodel->brushq3.num_lightgrid_isize[2] + 2)) * 4;
+                       // the light dir layer needs padding above/below it that is a neutral unsigned normal (127,127,127,255)
+                       texturepadding[0] = texturelayer[2] - loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * 4;
+                       texturepadding[1] = texturelayer[2] + loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2] * 4;
+                       for (i = 0; i < texturesize[0] * texturesize[1]; i++)
+                       {
+                               texturepadding[0][i * 4] = texturepadding[1][i * 4] = 127;
+                               texturepadding[0][i * 4 + 1] = texturepadding[1][i * 4 + 1] = 127;
+                               texturepadding[0][i * 4 + 2] = texturepadding[1][i * 4 + 2] = 127;
+                               texturepadding[0][i * 4 + 3] = texturepadding[1][i * 4 + 3] = 255;
+                       }
+                       for (i = 0; i < count; i++)
+                       {
+                               texturelayer[0][i * 4 + 0] = out[i].ambientrgb[0];
+                               texturelayer[0][i * 4 + 1] = out[i].ambientrgb[1];
+                               texturelayer[0][i * 4 + 2] = out[i].ambientrgb[2];
+                               texturelayer[0][i * 4 + 3] = 255;
+                               texturelayer[1][i * 4 + 0] = out[i].diffusergb[0];
+                               texturelayer[1][i * 4 + 1] = out[i].diffusergb[1];
+                               texturelayer[1][i * 4 + 2] = out[i].diffusergb[2];
+                               texturelayer[1][i * 4 + 3] = 255;
+                               // this uses the mod_md3_sin table because the values are
+                               // already in the 0-255 range, the 64+ bias fetches a cosine
+                               // instead of a sine value
+                               texturelayer[2][i * 4 + 0] = (char)((mod_md3_sin[64 + out[i].diffuseyaw] * mod_md3_sin[out[i].diffusepitch]) * 127 + 127);
+                               texturelayer[2][i * 4 + 1] = (char)((mod_md3_sin[out[i].diffuseyaw] * mod_md3_sin[out[i].diffusepitch]) * 127 + 127);
+                               texturelayer[2][i * 4 + 2] = (char)((mod_md3_sin[64 + out[i].diffusepitch]) * 127 + 127);
+                               texturelayer[2][i * 4 + 3] = 255;
+                       }
+#if 0
+                       // debugging hack
+                       int x, y, z;
+                       for (z = 0; z < loadmodel->brushq3.num_lightgrid_isize[2]; z++)
+                       {
+                               for (y = 0; y < loadmodel->brushq3.num_lightgrid_isize[1]; y++)
+                               {
+                                       for (x = 0; x < loadmodel->brushq3.num_lightgrid_isize[0]; x++)
+                                       {
+                                               i = (z * texturesize[1] + y) * texturesize[0] + x;
+                                               texturelayer[0][i * 4 + 0] = x * 256 / loadmodel->brushq3.num_lightgrid_isize[0];
+                                               texturelayer[0][i * 4 + 1] = y * 256 / loadmodel->brushq3.num_lightgrid_isize[1];
+                                               texturelayer[0][i * 4 + 2] = z * 256 / loadmodel->brushq3.num_lightgrid_isize[2];
+                                       }
+                               }
+                       }
+#endif
+                       loadmodel->brushq3.lightgridtexturesize[0] = texturesize[0];
+                       loadmodel->brushq3.lightgridtexturesize[1] = texturesize[1];
+                       loadmodel->brushq3.lightgridtexturesize[2] = texturesize[2];
+                       memset(lightgridmatrix[0], 0, sizeof(lightgridmatrix));
+                       lightgridmatrix[0][0] = loadmodel->brushq3.num_lightgrid_scale[0] / texturesize[0];
+                       lightgridmatrix[1][1] = loadmodel->brushq3.num_lightgrid_scale[1] / texturesize[1];
+                       lightgridmatrix[2][2] = loadmodel->brushq3.num_lightgrid_scale[2] / texturesize[2];
+                       lightgridmatrix[0][3] = -(loadmodel->brushq3.num_lightgrid_imins[0] - 0.5f) / texturesize[0];
+                       lightgridmatrix[1][3] = -(loadmodel->brushq3.num_lightgrid_imins[1] - 0.5f) / texturesize[1];
+                       lightgridmatrix[2][3] = -(loadmodel->brushq3.num_lightgrid_imins[2] - 1.5f) / texturesize[2];
+                       lightgridmatrix[3][3] = 1;
+                       Matrix4x4_FromArrayDoubleD3D(&loadmodel->brushq3.lightgridworldtotexturematrix, lightgridmatrix[0]);
+                       loadmodel->brushq3.lightgridtexture = R_LoadTexture3D(loadmodel->texturepool, "lightgrid", texturesize[0], texturesize[1], texturesize[2], texturergba, TEXTYPE_RGBA, TEXF_CLAMP, 0, NULL);
+                       Mem_Free(texturergba);
+               }
        }
 }
 
@@ -7250,377 +7219,6 @@ int Mod_CollisionBIH_PointSuperContents_Mesh(struct model_s *model, int frame, c
 #endif
 }
 
-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[(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++)
-       {
-               brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
-               if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
-               {
-                       brush->markframe = markframe;
-                       Collision_TracePointBrushFloat(trace, point, brush);
-               }
-       }
-       // can't do point traces on curves (they have no thickness)
-}
-
-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];
-       mleaf_t *leaf;
-       msurface_t *surface;
-       mplane_t *plane;
-       colbrushf_t *brush;
-       // walk the tree until we hit a leaf, recursing for any split cases
-       while (node->plane)
-       {
-#if 0
-               if (!BoxesOverlap(segmentmins, segmentmaxs, node->mins, node->maxs))
-                       return;
-               Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[0], start, end, startfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
-               node = node->children[1];
-#else
-               // abort if this part of the bsp tree can not be hit by this trace
-//             if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
-//                     return;
-               plane = node->plane;
-               // axial planes are much more common than non-axial, so an optimized
-               // axial case pays off here
-               if (plane->type < 3)
-               {
-                       dist1 = start[plane->type] - plane->dist;
-                       dist2 = end[plane->type] - plane->dist;
-               }
-               else
-               {
-                       dist1 = DotProduct(start, plane->normal) - plane->dist;
-                       dist2 = DotProduct(end, plane->normal) - plane->dist;
-               }
-               startside = dist1 < 0;
-               endside = dist2 < 0;
-               if (startside == endside)
-               {
-                       // most of the time the line fragment is on one side of the plane
-                       node = node->children[startside];
-               }
-               else
-               {
-                       // line crosses node plane, split the line
-                       dist1 = PlaneDiff(linestart, plane);
-                       dist2 = PlaneDiff(lineend, plane);
-                       midfrac = dist1 / (dist1 - dist2);
-                       VectorLerp(linestart, midfrac, lineend, mid);
-                       // take the near side first
-                       Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
-                       // if we found an impact on the front side, don't waste time
-                       // exploring the far side
-                       if (midfrac <= trace->fraction)
-                               Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
-                       return;
-               }
-#endif
-       }
-       // abort if this part of the bsp tree can not be hit by this trace
-//     if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
-//             return;
-       // hit a leaf
-       nodesegmentmins[0] = min(start[0], end[0]) - 1;
-       nodesegmentmins[1] = min(start[1], end[1]) - 1;
-       nodesegmentmins[2] = min(start[2], end[2]) - 1;
-       nodesegmentmaxs[0] = max(start[0], end[0]) + 1;
-       nodesegmentmaxs[1] = max(start[1], end[1]) + 1;
-       nodesegmentmaxs[2] = max(start[2], end[2]) + 1;
-       // line trace the brushes
-       leaf = (mleaf_t *)node;
-#if 0
-       if (!BoxesOverlap(segmentmins, segmentmaxs, leaf->mins, leaf->maxs))
-               return;
-#endif
-       for (i = 0;i < leaf->numleafbrushes;i++)
-       {
-               brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
-               if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
-               {
-                       brush->markframe = markframe;
-                       Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
-               }
-       }
-       // can't do point traces on curves (they have no thickness)
-       if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
-       {
-               // line trace the curves
-               for (i = 0;i < leaf->numleafsurfaces;i++)
-               {
-                       surface = model->data_surfaces + leaf->firstleafsurface[i];
-                       if (surface->num_collisiontriangles && surface->deprecatedq3collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
-                       {
-                               surface->deprecatedq3collisionmarkframe = markframe;
-                               Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->deprecatedq3data_collisionelement3i, surface->deprecatedq3data_collisionvertex3f, surface->deprecatedq3num_collisionbboxstride, surface->deprecatedq3data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, 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;
-       mleaf_t *leaf;
-       colbrushf_t *brush;
-       msurface_t *surface;
-       mplane_t *plane;
-       float nodesegmentmins[3], nodesegmentmaxs[3];
-       // walk the tree until we hit a leaf, recursing for any split cases
-       while (node->plane)
-       {
-#if 0
-               if (!BoxesOverlap(segmentmins, segmentmaxs, node->mins, node->maxs))
-                       return;
-               Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-               node = node->children[1];
-#else
-               // abort if this part of the bsp tree can not be hit by this trace
-//             if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
-//                     return;
-               plane = node->plane;
-               // axial planes are much more common than non-axial, so an optimized
-               // axial case pays off here
-               if (plane->type < 3)
-               {
-                       // this is an axial plane, compare bounding box directly to it and
-                       // recurse sides accordingly
-                       // recurse down node sides
-                       // use an inlined axial BoxOnPlaneSide to slightly reduce overhead
-                       //sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, plane);
-                       //sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
-                       sides = ((segmentmaxs[plane->type] >= plane->dist) + ((segmentmins[plane->type] < plane->dist) * 2));
-               }
-               else
-               {
-                       // this is a non-axial plane, so check if the start and end boxes
-                       // are both on one side of the plane to handle 'diagonal' cases
-                       sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
-               }
-               if (sides == 3)
-               {
-                       // segment crosses plane
-                       Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
-                       sides = 2;
-               }
-               // if sides == 0 then the trace itself is bogus (Not A Number values),
-               // in this case we simply pretend the trace hit nothing
-               if (sides == 0)
-                       return; // ERROR: NAN bounding box!
-               // take whichever side the segment box is on
-               node = node->children[sides - 1];
-#endif
-       }
-       // abort if this part of the bsp tree can not be hit by this trace
-//     if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
-//             return;
-       nodesegmentmins[0] = max(segmentmins[0], node->mins[0] - 1);
-       nodesegmentmins[1] = max(segmentmins[1], node->mins[1] - 1);
-       nodesegmentmins[2] = max(segmentmins[2], node->mins[2] - 1);
-       nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0] + 1);
-       nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1] + 1);
-       nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2] + 1);
-       // hit a leaf
-       leaf = (mleaf_t *)node;
-#if 0
-       if (!BoxesOverlap(segmentmins, segmentmaxs, leaf->mins, leaf->maxs))
-               return;
-#endif
-       for (i = 0;i < leaf->numleafbrushes;i++)
-       {
-               brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
-               if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
-               {
-                       brush->markframe = markframe;
-                       Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
-               }
-       }
-       if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer)
-       {
-               for (i = 0;i < leaf->numleafsurfaces;i++)
-               {
-                       surface = model->data_surfaces + leaf->firstleafsurface[i];
-                       if (surface->num_collisiontriangles && surface->deprecatedq3collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
-                       {
-                               surface->deprecatedq3collisionmarkframe = markframe;
-                               Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->deprecatedq3data_collisionelement3i, surface->deprecatedq3data_collisionvertex3f, surface->deprecatedq3num_collisionbboxstride, surface->deprecatedq3data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
-                       }
-               }
-       }
-}
-
-
-static int markframe = 0;
-
-static void Mod_Q3BSP_TracePoint(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
-{
-       int i;
-       q3mbrush_t *brush;
-       memset(trace, 0, sizeof(*trace));
-       trace->fraction = 1;
-       trace->hitsupercontentsmask = hitsupercontentsmask;
-       trace->skipsupercontentsmask = skipsupercontentsmask;
-       trace->skipmaterialflagsmask = skipmaterialflagsmask;
-       if (mod_collision_bih.integer)
-               Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
-       else if (model->brush.submodel)
-       {
-               for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
-                       if (brush->colbrushf)
-                               Collision_TracePointBrushFloat(trace, start, brush->colbrushf);
-       }
-       else
-               Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, ++markframe);
-}
-
-static void Mod_Q3BSP_TraceLine(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
-{
-       int i;
-       float segmentmins[3], segmentmaxs[3];
-       msurface_t *surface;
-       q3mbrush_t *brush;
-
-       if (VectorCompare(start, end))
-       {
-               Mod_Q3BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
-               return;
-       }
-
-       memset(trace, 0, sizeof(*trace));
-       trace->fraction = 1;
-       trace->hitsupercontentsmask = hitsupercontentsmask;
-       trace->skipsupercontentsmask = skipsupercontentsmask;
-       trace->skipmaterialflagsmask = skipmaterialflagsmask;
-       segmentmins[0] = min(start[0], end[0]) - 1;
-       segmentmins[1] = min(start[1], end[1]) - 1;
-       segmentmins[2] = min(start[2], end[2]) - 1;
-       segmentmaxs[0] = max(start[0], end[0]) + 1;
-       segmentmaxs[1] = max(start[1], end[1]) + 1;
-       segmentmaxs[2] = max(start[2], end[2]) + 1;
-       if (mod_collision_bih.integer)
-               Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
-       else if (model->brush.submodel)
-       {
-               for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
-                       if (brush->colbrushf && BoxesOverlap(segmentmins, segmentmaxs, brush->colbrushf->mins, brush->colbrushf->maxs))
-                               Collision_TraceLineBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
-               if (mod_q3bsp_curves_collisions.integer)
-                       for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
-                               if (surface->num_collisiontriangles && BoxesOverlap(segmentmins, segmentmaxs, surface->mins, surface->maxs))
-                                       Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->deprecatedq3data_collisionelement3i, surface->deprecatedq3data_collisionvertex3f, surface->deprecatedq3num_collisionbboxstride, surface->deprecatedq3data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
-       }
-       else
-               Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, 0, 1, start, end, ++markframe, segmentmins, segmentmaxs);
-}
-
-static void Mod_Q3BSP_TraceBrush(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, colbrushf_t *start, colbrushf_t *end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
-{
-       float segmentmins[3], segmentmaxs[3];
-       int i;
-       msurface_t *surface;
-       q3mbrush_t *brush;
-
-       if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(start->mins, start->maxs) && VectorCompare(end->mins, end->maxs))
-       {
-               if (VectorCompare(start->mins, end->mins))
-                       Mod_Q3BSP_TracePoint(model, frameblend, skeleton, trace, start->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
-               else
-                       Mod_Q3BSP_TraceLine(model, frameblend, skeleton, trace, start->mins, end->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
-               return;
-       }
-
-       // box trace, performed as brush trace
-       memset(trace, 0, sizeof(*trace));
-       trace->fraction = 1;
-       trace->hitsupercontentsmask = hitsupercontentsmask;
-       trace->skipsupercontentsmask = skipsupercontentsmask;
-       trace->skipmaterialflagsmask = skipmaterialflagsmask;
-       segmentmins[0] = min(start->mins[0], end->mins[0]) - 1;
-       segmentmins[1] = min(start->mins[1], end->mins[1]) - 1;
-       segmentmins[2] = min(start->mins[2], end->mins[2]) - 1;
-       segmentmaxs[0] = max(start->maxs[0], end->maxs[0]) + 1;
-       segmentmaxs[1] = max(start->maxs[1], end->maxs[1]) + 1;
-       segmentmaxs[2] = max(start->maxs[2], end->maxs[2]) + 1;
-       if (mod_collision_bih.integer)
-               Mod_CollisionBIH_TraceBrush(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
-       else if (model->brush.submodel)
-       {
-               for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
-                       if (brush->colbrushf && BoxesOverlap(segmentmins, segmentmaxs, brush->colbrushf->mins, brush->colbrushf->maxs))
-                               Collision_TraceBrushBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
-               if (mod_q3bsp_curves_collisions.integer)
-                       for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
-                               if (surface->num_collisiontriangles && BoxesOverlap(segmentmins, segmentmaxs, surface->mins, surface->maxs))
-                                       Collision_TraceBrushTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->deprecatedq3data_collisionelement3i, surface->deprecatedq3data_collisionvertex3f, surface->deprecatedq3num_collisionbboxstride, surface->deprecatedq3data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
-       }
-       else
-               Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, ++markframe, segmentmins, segmentmaxs);
-}
-
-static void Mod_Q3BSP_TraceBox(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
-{
-       colboxbrushf_t thisbrush_start, thisbrush_end;
-       vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
-
-       // box trace, performed as brush trace
-       VectorAdd(start, boxmins, boxstartmins);
-       VectorAdd(start, boxmaxs, boxstartmaxs);
-       VectorAdd(end, boxmins, boxendmins);
-       VectorAdd(end, boxmaxs, boxendmaxs);
-       Collision_BrushForBox(&thisbrush_start, boxstartmins, boxstartmaxs, 0, 0, NULL);
-       Collision_BrushForBox(&thisbrush_end, boxendmins, boxendmaxs, 0, 0, NULL);
-       Mod_Q3BSP_TraceBrush(model, frameblend, skeleton, trace, &thisbrush_start.brush, &thisbrush_end.brush, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
-}
-
-static int Mod_Q3BSP_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
-{
-       int i;
-       int supercontents = 0;
-       q3mbrush_t *brush;
-       if (mod_collision_bih.integer)
-       {
-               supercontents = Mod_CollisionBIH_PointSuperContents(model, frame, point);
-       }
-       // test if the point is inside each brush
-       else 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;
-}
-
 void Mod_CollisionBIH_TraceLineAgainstSurfaces(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
 {
        Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, &model->render_bih);
@@ -7862,34 +7460,34 @@ static void Mod_Q3BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
                Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
 
        mod->soundfromcenter = true;
-       mod->TraceBox = Mod_Q3BSP_TraceBox;
-       mod->TraceBrush = Mod_Q3BSP_TraceBrush;
-       mod->TraceLine = Mod_Q3BSP_TraceLine;
-       mod->TracePoint = Mod_Q3BSP_TracePoint;
-       mod->PointSuperContents = Mod_Q3BSP_PointSuperContents;
+       mod->TraceBox = Mod_CollisionBIH_TraceBox;
+       mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
+       mod->TraceLine = Mod_CollisionBIH_TraceLine;
+       mod->TracePoint = Mod_CollisionBIH_TracePoint;
+       mod->PointSuperContents = Mod_CollisionBIH_PointSuperContents;
        mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
        mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
        mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
        mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
-       mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
-       mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
-       mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
-       mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
-       mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
-       mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
+       mod->brush.GetPVS = Mod_BSP_GetPVS;
+       mod->brush.FatPVS = Mod_BSP_FatPVS;
+       mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
+       mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
+       mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
+       mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
        mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
-       mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
+       mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
        mod->brush.AmbientSoundLevelsForPoint = NULL;
        mod->brush.RoundUpToHullSize = NULL;
-       mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
-       mod->Draw = R_Q1BSP_Draw;
-       mod->DrawDepth = R_Q1BSP_DrawDepth;
-       mod->DrawDebug = R_Q1BSP_DrawDebug;
-       mod->DrawPrepass = R_Q1BSP_DrawPrepass;
-       mod->GetLightInfo = R_Q1BSP_GetLightInfo;
-       mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
-       mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
-       mod->DrawLight = R_Q1BSP_DrawLight;
+       mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
+       mod->Draw = R_Mod_Draw;
+       mod->DrawDepth = R_Mod_DrawDepth;
+       mod->DrawDebug = R_Mod_DrawDebug;
+       mod->DrawPrepass = R_Mod_DrawPrepass;
+       mod->GetLightInfo = R_Mod_GetLightInfo;
+       mod->CompileShadowMap = R_Mod_CompileShadowMap;
+       mod->DrawShadowMap = R_Mod_DrawShadowMap;
+       mod->DrawLight = R_Mod_DrawLight;
 
        mod_base = (unsigned char *)header;
 
@@ -7934,6 +7532,10 @@ static void Mod_Q3BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
                CL_KeepaliveMessage(false);
        }
 
+       // allocate a texture pool if we need it
+       if (mod->texturepool == NULL)
+               mod->texturepool = R_AllocTexturePool();
+
        Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
        Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
        Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
@@ -7958,7 +7560,7 @@ static void Mod_Q3BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 
        // the MakePortals code works fine on the q3bsp data as well
        if (mod_bsp_portalize.integer)
-               Mod_Q1BSP_MakePortals();
+               Mod_BSP_MakePortals();
 
        // FIXME: shader alpha should replace r_wateralpha support in q3bsp
        loadmodel->brush.supportwateralpha = true;
@@ -8055,13 +7657,13 @@ static void Mod_Q3BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
                        if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & MATERIALFLAG_SKY)
                                break;
                if (j < mod->nummodelsurfaces)
-                       mod->DrawSky = R_Q1BSP_DrawSky;
+                       mod->DrawSky = R_Mod_DrawSky;
 
                for (j = 0;j < mod->nummodelsurfaces;j++)
                        if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
                                break;
                if (j < mod->nummodelsurfaces)
-                       mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
+                       mod->DrawAddWaterPlanes = R_Mod_DrawAddWaterPlanes;
 
                Mod_MakeCollisionBIH(mod, false, &mod->collision_bih);
                Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
@@ -8198,14 +7800,14 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
        loadmodel->brush.AmbientSoundLevelsForPoint = NULL;
        loadmodel->brush.RoundUpToHullSize = NULL;
        loadmodel->brush.PointInLeaf = NULL;
-       loadmodel->Draw = R_Q1BSP_Draw;
-       loadmodel->DrawDepth = R_Q1BSP_DrawDepth;
-       loadmodel->DrawDebug = R_Q1BSP_DrawDebug;
-       loadmodel->DrawPrepass = R_Q1BSP_DrawPrepass;
-       loadmodel->GetLightInfo = R_Q1BSP_GetLightInfo;
-       loadmodel->CompileShadowMap = R_Q1BSP_CompileShadowMap;
-       loadmodel->DrawShadowMap = R_Q1BSP_DrawShadowMap;
-       loadmodel->DrawLight = R_Q1BSP_DrawLight;
+       loadmodel->Draw = R_Mod_Draw;
+       loadmodel->DrawDepth = R_Mod_DrawDepth;
+       loadmodel->DrawDebug = R_Mod_DrawDebug;
+       loadmodel->DrawPrepass = R_Mod_DrawPrepass;
+       loadmodel->GetLightInfo = R_Mod_GetLightInfo;
+       loadmodel->CompileShadowMap = R_Mod_CompileShadowMap;
+       loadmodel->DrawShadowMap = R_Mod_DrawShadowMap;
+       loadmodel->DrawLight = R_Mod_DrawLight;
 
        skinfiles = Mod_LoadSkinFiles();
        if (loadmodel->numskins < 1)
@@ -8704,13 +8306,13 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
                        if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & MATERIALFLAG_SKY)
                                break;
                if (j < mod->nummodelsurfaces)
-                       mod->DrawSky = R_Q1BSP_DrawSky;
+                       mod->DrawSky = R_Mod_DrawSky;
 
                for (j = 0;j < mod->nummodelsurfaces;j++)
                        if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
                                break;
                if (j < mod->nummodelsurfaces)
-                       mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
+                       mod->DrawAddWaterPlanes = R_Mod_DrawAddWaterPlanes;
 
                Mod_MakeCollisionBIH(mod, true, &mod->collision_bih);
                mod->render_bih = mod->collision_bih;