]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - model_brush.c
Fix setinfo.
[xonotic/darkplaces.git] / model_brush.c
index 8605cbb0cc3aad75d53a63f6ebb7264b6ebfe7cf..9eb87f13caca65e8535a6704c7a8621c543b9bba 100644 (file)
@@ -42,6 +42,7 @@ 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)"};
@@ -69,7 +70,7 @@ static texture_t mod_q1bsp_texture_lava;
 static texture_t mod_q1bsp_texture_slime;
 static texture_t mod_q1bsp_texture_water;
 
-static qboolean Mod_Q3BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end);
+static qboolean Mod_Q3BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs);
 
 void Mod_BrushInit(void)
 {
@@ -89,6 +90,7 @@ void Mod_BrushInit(void)
        Cvar_RegisterVariable(&r_fxaa);
        Cvar_RegisterVariable(&mod_noshader_default_offsetmapping);
        Cvar_RegisterVariable(&mod_obj_orientation);
+       Cvar_RegisterVariable(&mod_q2bsp_littransparentsurfaces);
        Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
        Cvar_RegisterVariable(&mod_q3bsp_curves_collisions_stride);
        Cvar_RegisterVariable(&mod_q3bsp_curves_stride);
@@ -638,7 +640,7 @@ static void Mod_Q1BSP_FindNonSolidLocation(dp_model_t *model, const vec3_t in, v
        VectorCopy(info.center, out);
 }
 
-int Mod_Q1BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents)
+int Mod_Q1BSP_SuperContentsFromNativeContents(int nativecontents)
 {
        switch(nativecontents)
        {
@@ -658,7 +660,7 @@ int Mod_Q1BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativeconte
        return 0;
 }
 
-int Mod_Q1BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents)
+int Mod_Q1BSP_NativeContentsFromSuperContents(int supercontents)
 {
        if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
                return CONTENTS_SOLID;
@@ -811,7 +813,7 @@ static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int nu
        // we reached a leaf contents
 
        // check for empty
-       num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
+       num = Mod_Q1BSP_SuperContentsFromNativeContents(num);
        if (!t->trace->startfound)
        {
                t->trace->startfound = true;
@@ -866,7 +868,7 @@ static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, i
                plane = planes + nodes[num].planenum;
                num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
        }
-       num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
+       num = Mod_Q1BSP_SuperContentsFromNativeContents(num);
        t->trace->startsupercontents |= num;
        if (num & SUPERCONTENTS_LIQUIDSMASK)
                t->trace->inwater = true;
@@ -885,7 +887,7 @@ static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, i
 }
 //#endif
 
-static void Mod_Q1BSP_TracePoint(struct model_s *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask)
+static void Mod_Q1BSP_TracePoint(struct model_s *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
 {
        RecursiveHullCheckTraceInfo_t rhc;
 
@@ -900,22 +902,22 @@ static void Mod_Q1BSP_TracePoint(struct model_s *model, const frameblend_t *fram
        Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
 }
 
-static void Mod_Q1BSP_TraceLineAgainstSurfaces(struct model_s *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask);
+static void Mod_Q1BSP_TraceLineAgainstSurfaces(struct model_s *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);
 
-static void Mod_Q1BSP_TraceLine(struct model_s *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask)
+static void Mod_Q1BSP_TraceLine(struct model_s *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)
 {
        RecursiveHullCheckTraceInfo_t rhc;
 
        if (VectorCompare(start, end))
        {
-               Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
+               Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
                return;
        }
 
        // sometimes we want to traceline against polygons so we can report the texture that was hit rather than merely a contents, but using this method breaks one of negke's maps so it must be a cvar check...
        if (sv_gameplayfix_q1bsptracelinereportstexture.integer)
        {
-               Mod_Q1BSP_TraceLineAgainstSurfaces(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask);
+               Mod_Q1BSP_TraceLineAgainstSurfaces(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
                return;
        }
 
@@ -923,6 +925,8 @@ static void Mod_Q1BSP_TraceLine(struct model_s *model, const frameblend_t *frame
        memset(trace, 0, sizeof(trace_t));
        rhc.trace = trace;
        rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
+       rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
+       rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
        rhc.trace->fraction = 1;
        rhc.trace->allsolid = true;
        rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
@@ -940,6 +944,8 @@ static void Mod_Q1BSP_TraceLine(struct model_s *model, const frameblend_t *frame
                memset(&testtrace, 0, sizeof(trace_t));
                rhc.trace = &testtrace;
                rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
+               rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
+               rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
                rhc.trace->fraction = 1;
                rhc.trace->allsolid = true;
                VectorCopy(test, rhc.start);
@@ -959,7 +965,7 @@ static void Mod_Q1BSP_TraceLine(struct model_s *model, const frameblend_t *frame
 #endif
 }
 
-static void Mod_Q1BSP_TraceBox(struct model_s *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)
+static void Mod_Q1BSP_TraceBox(struct model_s *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)
 {
        // this function currently only supports same size start and end
        double boxsize[3];
@@ -968,9 +974,9 @@ static void Mod_Q1BSP_TraceBox(struct model_s *model, const frameblend_t *frameb
        if (VectorCompare(boxmins, boxmaxs))
        {
                if (VectorCompare(start, end))
-                       Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
+                       Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
                else
-                       Mod_Q1BSP_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask);
+                       Mod_Q1BSP_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
                return;
        }
 
@@ -978,6 +984,8 @@ static void Mod_Q1BSP_TraceBox(struct model_s *model, const frameblend_t *frameb
        memset(trace, 0, sizeof(trace_t));
        rhc.trace = trace;
        rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
+       rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
+       rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
        rhc.trace->fraction = 1;
        rhc.trace->allsolid = true;
        VectorSubtract(boxmaxs, boxmins, boxsize);
@@ -1020,6 +1028,8 @@ static void Mod_Q1BSP_TraceBox(struct model_s *model, const frameblend_t *frameb
                memset(&testtrace, 0, sizeof(trace_t));
                rhc.trace = &testtrace;
                rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
+               rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
+               rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
                rhc.trace->fraction = 1;
                rhc.trace->allsolid = true;
                VectorCopy(test, rhc.start);
@@ -1050,10 +1060,10 @@ static int Mod_Q1BSP_PointSuperContents(struct model_s *model, int frame, const
                plane = planes + nodes[num].planenum;
                num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
        }
-       return Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
+       return Mod_Q1BSP_SuperContentsFromNativeContents(num);
 }
 
-void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, const texture_t *boxtexture)
+void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask, int boxsupercontents, int boxq3surfaceflags, const texture_t *boxtexture)
 {
 #if 1
        colbrushf_t cbox;
@@ -1088,6 +1098,8 @@ void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cm
        cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
        memset(trace, 0, sizeof(trace_t));
        trace->hitsupercontentsmask = hitsupercontentsmask;
+       trace->skipsupercontentsmask = skipsupercontentsmask;
+       trace->skipmaterialflagsmask = skipmaterialflagsmask;
        trace->fraction = 1;
        Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
 #else
@@ -1145,6 +1157,8 @@ void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cm
        rhc.hull = &box_hull;
        rhc.trace = trace;
        rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
+       rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
+       rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
        rhc.trace->fraction = 1;
        rhc.trace->allsolid = true;
        VectorCopy(start, rhc.start);
@@ -1157,14 +1171,17 @@ void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cm
 #endif
 }
 
-void Collision_ClipTrace_Point(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, const texture_t *boxtexture)
+void Collision_ClipTrace_Point(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask, int boxsupercontents, int boxq3surfaceflags, const texture_t *boxtexture)
 {
        memset(trace, 0, sizeof(trace_t));
        trace->fraction = 1;
+       trace->hitsupercontentsmask = hitsupercontentsmask;
+       trace->skipsupercontentsmask = skipsupercontentsmask;
+       trace->skipmaterialflagsmask = skipmaterialflagsmask;
        if (BoxesOverlap(start, start, cmins, cmaxs))
        {
                trace->startsupercontents |= boxsupercontents;
-               if (hitsupercontentsmask & boxsupercontents)
+               if ((hitsupercontentsmask & boxsupercontents) && !(skipsupercontentsmask & boxsupercontents))
                {
                        trace->startsolid = true;
                        trace->allsolid = true;
@@ -1172,11 +1189,11 @@ void Collision_ClipTrace_Point(trace_t *trace, const vec3_t cmins, const vec3_t
        }
 }
 
-static qboolean Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end)
+static qboolean Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs)
 {
        trace_t trace;
-       Mod_Q1BSP_TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK);
-       return trace.fraction == 1;
+       Mod_Q1BSP_TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
+       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)
@@ -1362,6 +1379,12 @@ static const texture_t *Mod_Q1BSP_TraceLineAgainstSurfacesFindTextureOnNode(Recu
                // skip faces with contents we don't care about
                if (!(t->trace->hitsupercontentsmask & surface->texture->supercontents))
                        continue;
+               // ignore surfaces matching the skipsupercontentsmask (this is rare)
+               if (t->trace->skipsupercontentsmask & surface->texture->supercontents)
+                       continue;
+               // skip surfaces matching the skipmaterialflagsmask (e.g. MATERIALFLAG_NOSHADOW)
+               if (t->trace->skipmaterialflagsmask & surface->texture->currentmaterialflags)
+                       continue;
                // get the surface normal - since it is flat we know any vertex normal will suffice
                VectorCopy(model->surfmesh.data_normal3f + 3 * surface->num_firstvertex, normal);
                // skip backfaces
@@ -1468,7 +1491,7 @@ static int Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(RecursiveHullCheck
                return Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(t, model, node->children[side ^ 1], mid, p2);
        }
        leaf = (const mleaf_t *)node;
-       side = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, leaf->contents);
+       side = Mod_Q1BSP_SuperContentsFromNativeContents(leaf->contents);
        if (!t->trace->startfound)
        {
                t->trace->startfound = true;
@@ -1492,7 +1515,7 @@ static int Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(RecursiveHullCheck
        }
 }
 
-static void Mod_Q1BSP_TraceLineAgainstSurfaces(struct model_s *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask)
+static void Mod_Q1BSP_TraceLineAgainstSurfaces(struct model_s *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)
 {
        RecursiveHullCheckTraceInfo_t rhc;
 
@@ -1500,6 +1523,8 @@ static void Mod_Q1BSP_TraceLineAgainstSurfaces(struct model_s *model, const fram
        memset(trace, 0, sizeof(trace_t));
        rhc.trace = trace;
        rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
+       rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
+       rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
        rhc.trace->fraction = 1;
        rhc.trace->allsolid = true;
        rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
@@ -1611,17 +1636,17 @@ static void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int
                }
        }
 
-       loadmodel->brush.solidskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_solidtexture", 0         , (unsigned char *) solidpixels, w, h, vid.sRGB3D);
-       loadmodel->brush.alphaskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_alphatexture", TEXF_ALPHA, (unsigned char *) alphapixels, w, h, vid.sRGB3D);
+       loadmodel->brush.solidskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_solidtexture", 0         , (unsigned char *) solidpixels, w, h, 0, 0, 0, vid.sRGB3D);
+       loadmodel->brush.alphaskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_alphatexture", TEXF_ALPHA, (unsigned char *) alphapixels, w, h, 0, 0, 0, vid.sRGB3D);
        Mem_Free(solidpixels);
        Mem_Free(alphapixels);
 }
 
 static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
 {
-       int i, j, k, num, max, altmax, mtwidth, mtheight, doffset, incomplete, nummiptex = 0;
-       skinframe_t *skinframe;
-       texture_t *tx, *tx2, *anims[10], *altanims[10];
+       int i, j, k, num, max, altmax, mtwidth, mtheight, doffset, incomplete, nummiptex = 0, firstskynoshadowtexture = 0;
+       skinframe_t *skinframemissing;
+       texture_t *tx, *tx2, *anims[10], *altanims[10], *currentskynoshadowtexture;
        texture_t backuptex;
        unsigned char *data, *mtdata;
        const char *s;
@@ -1634,39 +1659,75 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
 
        loadmodel->data_textures = NULL;
 
-       // add two slots for notexture walls and notexture liquids
+       // add two slots for notexture walls and notexture liquids, and duplicate
+       // all sky textures; sky surfaces can be shadow-casting or not, the surface
+       // loading will choose according to the contents behind the surface
+       // (necessary to support e1m5 logo shadow which has a SKY contents brush,
+       // while correctly treating sky textures as occluders in other situations).
        if (sb->cursize)
        {
+               int numsky = 0;
+               size_t watermark;
                nummiptex = MSG_ReadLittleLong(sb);
                loadmodel->num_textures = nummiptex + 2;
-               loadmodel->num_texturesperskin = loadmodel->num_textures;
+               // save the position so we can go back to it
+               watermark = sb->readcount;
+               for (i = 0; i < nummiptex; i++)
+               {
+                       doffset = MSG_ReadLittleLong(sb);
+                       if (r_nosurftextures.integer)
+                               continue;
+                       if (doffset == -1)
+                       {
+                               Con_DPrintf("%s: miptex #%i missing\n", loadmodel->name, i);
+                               continue;
+                       }
+
+                       MSG_InitReadBuffer(&miptexsb, sb->data + doffset, sb->cursize - doffset);
+
+                       // copy name, but only up to 16 characters
+                       // (the output buffer can hold more than this, but the input buffer is
+                       //  only 16)
+                       for (j = 0; j < 16; j++)
+                               name[j] = MSG_ReadByte(&miptexsb);
+                       name[j] = 0;
+                       // pretty up the buffer (replacing any trailing garbage with 0)
+                       for (j = (int)strlen(name); j < 16; j++)
+                               name[j] = 0;
+
+                       if (!strncmp(name, "sky", 3))
+                               numsky++;
+               }
+
+               // bump it back to where we started parsing
+               sb->readcount = watermark;
+
+               firstskynoshadowtexture = loadmodel->num_textures;
+               loadmodel->num_textures += numsky;
        }
        else
        {
                loadmodel->num_textures = 2;
-               loadmodel->num_texturesperskin = loadmodel->num_textures;
+               firstskynoshadowtexture = loadmodel->num_textures;
        }
+       loadmodel->num_texturesperskin = loadmodel->num_textures;
 
        loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
 
+       // we'll be writing to these in parallel for sky textures
+       currentskynoshadowtexture = loadmodel->data_textures + firstskynoshadowtexture;
+
        // fill out all slots with notexture
-       if (cls.state != ca_dedicated)
-               skinframe = R_SkinFrame_LoadMissing();
-       else
-               skinframe = NULL;
+       skinframemissing = R_SkinFrame_LoadMissing();
        for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
        {
                strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
                tx->width = 16;
                tx->height = 16;
                tx->basealpha = 1.0f;
-               if (cls.state != ca_dedicated)
-               {
-                       tx->numskinframes = 1;
-                       tx->skinframerate = 1;
-                       tx->skinframes[0] = skinframe;
-                       tx->currentskinframe = tx->skinframes[0];
-               }
+               tx->materialshaderpass = tx->shaderpasses[0] = Mod_CreateShaderPass(loadmodel->mempool, skinframemissing);
+               tx->materialshaderpass->skinframes[0] = skinframemissing;
+               tx->currentskinframe = skinframemissing;
                tx->basematerialflags = MATERIALFLAG_WALL;
                if (i == loadmodel->num_textures - 1)
                {
@@ -1710,7 +1771,6 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                s += 5;
        FS_StripExtension(s, mapname, sizeof(mapname));
 
-       // just to work around bounds checking when debugging with it (array index out of bounds error thing)
        // LordHavoc: mostly rewritten map texture loader
        for (i = 0;i < nummiptex;i++)
        {
@@ -1766,7 +1826,7 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
 
                // LordHavoc: backup the texture_t because q3 shader loading overwrites it
                backuptex = loadmodel->data_textures[i];
-               if (name[0] && Mod_LoadTextureFromQ3Shader(loadmodel->data_textures + i, name, false, false, 0))
+               if (name[0] && Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, loadmodel->data_textures + i, name, false, false, 0, MATERIALFLAG_WALL))
                        continue;
                loadmodel->data_textures[i] = backuptex;
 
@@ -1776,6 +1836,10 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                tx->height = mtheight;
                tx->basealpha = 1.0f;
 
+               // start out with no animation
+               tx->currentframe = tx;
+               tx->currentskinframe = tx->materialshaderpass != NULL ? tx->materialshaderpass->skinframes[0] : NULL;
+
                if (tx->name[0] == '*')
                {
                        if (!strncmp(tx->name, "*lava", 5))
@@ -1825,9 +1889,9 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                        }
                        else
                        {
-                               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);
+                               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);
+                                       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)
@@ -1846,7 +1910,7 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                                                {
                                                        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, true);
+                                                       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);
@@ -1854,15 +1918,16 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                                        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);
                                }
-                               // if skinframe is still NULL the "missing" texture will be used
+                               // if skinframe is still NULL the "missing" texture has already been assigned to this
                                if (skinframe)
-                                       tx->skinframes[0] = skinframe;
+                                       tx->materialshaderpass->skinframes[0] = skinframe;
                        }
                        // LordHavoc: some Tenebrae textures get replaced by black
                        if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
-                               tx->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_MIPMAP | TEXF_ALPHA, zerotrans, 1, 1, false);
+                               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->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, 0, zeroopaque, 1, 1, false);
+                               tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, 0, zeroopaque, 1, 1, 0, 0, 0, false);
+                       tx->currentskinframe = tx->materialshaderpass->skinframes[0];
                }
 
                tx->basematerialflags = MATERIALFLAG_WALL;
@@ -1877,25 +1942,34 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                                tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
                        else
                                tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW | MATERIALFLAG_WATERALPHA | MATERIALFLAG_WATERSHADER;
-                       if (tx->skinframes[0] && tx->skinframes[0]->hasalpha)
+                       if (tx->currentskinframe != NULL && tx->currentskinframe->hasalpha)
                                tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
                }
+               else if (tx->name[0] == '{') // fence textures
+               {
+                       tx->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
+               }
                else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
                {
                        // replace the texture with black
                        tx->basematerialflags |= MATERIALFLAG_REFLECTION;
                }
                else if (!strncmp(tx->name, "sky", 3))
-                       tx->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
+                       tx->basematerialflags = MATERIALFLAG_SKY;
                else if (!strcmp(tx->name, "caulk"))
                        tx->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
-               else if (tx->skinframes[0] && tx->skinframes[0]->hasalpha)
+               else if (tx->currentskinframe != NULL && tx->currentskinframe->hasalpha)
                        tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
-
-               // start out with no animation
-               tx->currentframe = tx;
-               tx->currentskinframe = tx->skinframes[0];
                tx->currentmaterialflags = tx->basematerialflags;
+
+               // duplicate of sky with NOSHADOW
+               if (tx->basematerialflags & MATERIALFLAG_SKY)
+               {
+                       *currentskynoshadowtexture = *tx;
+                       currentskynoshadowtexture->basematerialflags |= MATERIALFLAG_NOSHADOW;
+                       tx->skynoshadowtexture = currentskynoshadowtexture;
+                       currentskynoshadowtexture++;
+               }
        }
 
        // sequence the animations
@@ -1904,6 +1978,12 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                tx = loadmodel->data_textures + i;
                if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
                        continue;
+               num = tx->name[1];
+               if ((num < '0' || num > '9') && (num < 'a' || num > 'j'))
+               {
+                       Con_Printf("Bad animating texture %s\n", tx->name);
+                       continue;
+               }
                if (tx->anim_total[0] || tx->anim_total[1])
                        continue;       // already sequenced
 
@@ -1922,8 +2002,7 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                                anims[num - '0'] = tx2;
                        else if (num >= 'a' && num <= 'j')
                                altanims[num - 'a'] = tx2;
-                       else
-                               Con_Printf("Bad animating texture %s\n", tx->name);
+                       // No need to warn otherwise - we already did above.
                }
 
                max = altmax = 0;
@@ -1956,6 +2035,12 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                if (incomplete)
                        continue;
 
+               // If we have exactly one frame, something's wrong.
+               if (max + altmax <= 1)
+               {
+                       Con_Printf("Texture %s is animated (leading +) but has only one frame\n", tx->name);
+               }
+
                if (altmax < 1)
                {
                        // if there is no alternate animation, duplicate the primary
@@ -1965,6 +2050,18 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                                altanims[k] = anims[k];
                }
 
+               if (max < 1)
+               {
+                       // Warn.
+                       Con_Printf("Missing frame 0 of %s\n", tx->name);
+
+                       // however, we can handle this by duplicating the alternate animation into the primary
+                       max = altmax;
+                       for (k = 0;k < 10;k++)
+                               anims[k] = altanims[k];
+               }
+
+
                // link together the primary animation
                for (j = 0;j < max;j++)
                {
@@ -2490,7 +2587,7 @@ static void Mod_Q1BSP_LoadFaces(sizebuf_t *sb)
                totaltris += numedges - 2;
        }
 
-       Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
+       Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false);
 
        lightmaptexture = NULL;
        deluxemaptexture = r_texture_blanknormalmap;
@@ -2658,10 +2755,10 @@ static void Mod_Q1BSP_LoadFaces(sizebuf_t *sb)
                int stainmapsize = 0;
                mod_alloclightmap_state_t allocState;
 
-               Mod_AllocLightmap_Init(&allocState, lightmapsize, lightmapsize);
+               Mod_AllocLightmap_Init(&allocState, loadmodel->mempool, lightmapsize, lightmapsize);
                for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
                {
-                       int i, iu, iv, lightmapx = 0, lightmapy = 0;
+                       int iu, iv, lightmapx = 0, lightmapy = 0;
                        float u, v, ubase, vbase, uscale, vscale;
 
                        if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
@@ -3146,6 +3243,26 @@ static void Mod_Q1BSP_LoadPlanes(sizebuf_t *sb)
        }
 }
 
+// fixes up sky surfaces that have SKY contents behind them, so that they do not cast shadows (e1m5 logo shadow trick).
+static void Mod_Q1BSP_AssignNoShadowSkySurfaces(dp_model_t *mod)
+{
+       int i;
+       msurface_t *surface;
+       vec3_t center;
+       int contents;
+       for (i = 0, surface = mod->data_surfaces + mod->firstmodelsurface; i < mod->nummodelsurfaces; i++, surface++)
+       {
+               if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
+               {
+                       // check if the point behind the surface polygon is SOLID or SKY contents
+                       VectorMAMAM(0.5f, surface->mins, 0.5f, surface->maxs, -0.25f, mod->surfmesh.data_normal3f + 3*surface->num_firstvertex, center);
+                       contents = Mod_Q1BSP_PointSuperContents(mod, 0, center);
+                       if (!(contents & SUPERCONTENTS_SOLID))
+                               surface->texture = surface->texture->skynoshadowtexture;
+               }
+       }
+}
+
 static void Mod_Q1BSP_LoadMapBrushes(void)
 {
 #if 0
@@ -3735,32 +3852,7 @@ static void Mod_Q1BSP_RoundUpToHullSize(dp_model_t *cmodel, const vec3_t inmins,
        VectorAdd(inmins, hull->clip_size, outmaxs);
 }
 
-static int Mod_Q1BSP_CreateShadowMesh(dp_model_t *mod)
-{
-       int j;
-       int numshadowmeshtriangles = 0;
-       msurface_t *surface;
-       if (cls.state == ca_dedicated)
-               return 0;
-       // make a single combined shadow mesh to allow optimized shadow volume creation
-
-       for (j = 0, surface = mod->data_surfaces;j < mod->num_surfaces;j++, surface++)
-       {
-               surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
-               numshadowmeshtriangles += surface->num_triangles;
-       }
-       mod->brush.shadowmesh = Mod_ShadowMesh_Begin(mod->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
-       for (j = 0, surface = mod->data_surfaces;j < mod->num_surfaces;j++, surface++)
-               if (surface->num_triangles > 0)
-                       Mod_ShadowMesh_AddMesh(mod->mempool, mod->brush.shadowmesh, NULL, NULL, NULL, mod->surfmesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (mod->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
-       mod->brush.shadowmesh = Mod_ShadowMesh_Finish(mod->mempool, mod->brush.shadowmesh, false, r_enableshadowvolumes.integer != 0, false);
-       if (mod->brush.shadowmesh && mod->brush.shadowmesh->neighbor3i)
-               Mod_BuildTriangleNeighbors(mod->brush.shadowmesh->neighbor3i, mod->brush.shadowmesh->element3i, mod->brush.shadowmesh->numtriangles);
-
-       return numshadowmeshtriangles;
-}
-
-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);
+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_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 {
@@ -3869,8 +3961,6 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        mod->GetLightInfo = R_Q1BSP_GetLightInfo;
        mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
        mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
-       mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
-       mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
        mod->DrawLight = R_Q1BSP_DrawLight;
 
 // load into heap
@@ -3926,9 +4016,6 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        mod->numframes = 2;             // regular and alternate animation
        mod->numskins = 1;
 
-       // make a single combined shadow mesh to allow optimized shadow volume creation
-       Mod_Q1BSP_CreateShadowMesh(loadmodel);
-
        if (loadmodel->brush.numsubmodels)
                loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
 
@@ -4014,6 +4101,9 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
                // set node/leaf parents for this submodel
                Mod_Q1BSP_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);
+
                // make the model surface list (used by shadowing/lighting)
                mod->sortedmodelsurfaces = (int *)datapointer;datapointer += mod->nummodelsurfaces * sizeof(int);
                Mod_MakeSortedSurfaces(mod);
@@ -4128,7 +4218,7 @@ void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        Con_DPrintf("Stats for q1bsp model \"%s\": %i faces, %i nodes, %i leafs, %i visleafs, %i visleafportals, mesh: %i vertices, %i triangles, %i surfaces\n", loadmodel->name, loadmodel->num_surfaces, loadmodel->brush.num_nodes, loadmodel->brush.num_leafs, mod->brush.num_pvsclusters, loadmodel->brush.num_portals, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->num_surfaces);
 }
 
-int Mod_Q2BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents)
+int Mod_Q2BSP_SuperContentsFromNativeContents(int nativecontents)
 {
        int supercontents = 0;
        if (nativecontents & CONTENTSQ2_SOLID)
@@ -4152,7 +4242,7 @@ int Mod_Q2BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativeconte
        return supercontents;
 }
 
-int Mod_Q2BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents)
+int Mod_Q2BSP_NativeContentsFromSuperContents(int supercontents)
 {
        int nativecontents = 0;
        if (supercontents & SUPERCONTENTS_SOLID)
@@ -4236,7 +4326,7 @@ static void Mod_Q2BSP_LoadNodes(sizebuf_t *sb)
                out->numsurfaces = (unsigned short)MSG_ReadLittleShort(sb);
                if (out->firstsurface + out->numsurfaces > (unsigned int)loadmodel->num_surfaces)
                {
-                       Con_Printf("Mod_Q2BSP_LoadNodes: invalid surface index range %i+%i (file has only %i surfaces)\n", p, out->firstsurface, out->numsurfaces, loadmodel->num_surfaces);
+                       Con_Printf("Mod_Q2BSP_LoadNodes: invalid surface index range %i+%i (file has only %i surfaces)\n", out->firstsurface, out->numsurfaces, loadmodel->num_surfaces);
                        out->firstsurface = 0;
                        out->numsurfaces = 0;
                }
@@ -4276,7 +4366,7 @@ static void Mod_Q2BSP_LoadNodes(sizebuf_t *sb)
 static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
 {
        mtexinfo_t *out;
-       int i, j, k, l, count;
+       int i, l, count;
        int structsize = 76;
        int maxtextures = 1024; // hardcoded limit of quake2 engine, so we may as well use it as an upper bound
        char filename[MAX_QPATH];
@@ -4292,6 +4382,7 @@ static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
 
        for (i = 0;i < count;i++, out++)
        {
+               int j, k;
                for (k = 0;k < 2;k++)
                        for (j = 0;j < 4;j++)
                                out->vecs[k][j] = MSG_ReadLittleFloat(sb);
@@ -4305,7 +4396,9 @@ static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
                // find an existing match for the texture if possible
                dpsnprintf(filename, sizeof(filename), "textures/%s.wal", out->q2texture);
                for (j = 0;j < loadmodel->num_texturesperskin;j++)
-                       if (!strcmp(filename, loadmodel->data_textures[j].name) && out->q2flags == loadmodel->data_textures[j].q2flags)
+                       if (!strcmp(filename, loadmodel->data_textures[j].name)
+                        && out->q2flags == loadmodel->data_textures[j].q2flags
+                        && out->q2value == loadmodel->data_textures[j].q2value)
                                break;
                // if we don't find the texture, store the new texture
                if (j == loadmodel->num_texturesperskin)
@@ -4316,19 +4409,24 @@ static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
                                int q2flags = out->q2flags;
                                unsigned char *walfile = NULL;
                                fs_offset_t walfilesize = 0;
-                               Mod_LoadTextureFromQ3Shader(tx, filename, true, true, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS);
+                               Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, tx, filename, true, true, TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL);
                                // now read the .wal file to get metadata (even if a .tga was overriding it, we still need the wal data)
                                walfile = FS_LoadFile(filename, tempmempool, true, &walfilesize);
                                if (walfile)
                                {
                                        int w, h;
-                                       char q2animname32c[32];
-                                       LoadWAL_GetMetadata(walfile, (int)walfilesize, &w, &h, &q2flags, &tx->q2value, &tx->q2contents, q2animname32c);
+                                       LoadWAL_GetMetadata(walfile, (int)walfilesize, &w, &h, NULL, NULL, &tx->q2contents, NULL);
                                        tx->width = w;
                                        tx->height = h;
-                                       tx->q2flags = q2flags;
                                        Mem_Free(walfile);
                                }
+                               else
+                               {
+                                       tx->width = 16;
+                                       tx->height = 16;
+                               }
+                               tx->q2flags = out->q2flags;
+                               tx->q2value = out->q2value;
                                // also modify the texture to have the correct contents and such based on flags
                                // note that we create multiple texture_t structures if q2flags differs
                                if (q2flags & Q2SURF_LIGHT)
@@ -4343,7 +4441,7 @@ static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
                                {
                                        // sky is a rather specific thing
                                        q2flags &= ~Q2SURF_NODRAW; // quake2 had a slightly different meaning than we have in mind here...
-                                       tx->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
+                                       tx->basematerialflags = MATERIALFLAG_SKY;
                                        tx->supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP | SUPERCONTENTS_OPAQUE;
                                        tx->surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
                                }
@@ -4361,7 +4459,7 @@ static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
                                if (q2flags & Q2SURF_TRANS33)
                                {
                                        tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED;
-                                       tx->basealpha = 0.3333f;
+                                       tx->basealpha = 1.0f / 3.0f;
                                        tx->supercontents &= ~SUPERCONTENTS_OPAQUE;
                                        if (tx->q2contents & Q2CONTENTS_SOLID)
                                                tx->q2contents = (tx->q2contents & ~Q2CONTENTS_SOLID) | Q2CONTENTS_WINDOW;
@@ -4369,16 +4467,29 @@ static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
                                if (q2flags & Q2SURF_TRANS66)
                                {
                                        tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED;
-                                       tx->basealpha = 0.6667f;
+                                       tx->basealpha = 2.0f / 3.0f;
                                        tx->supercontents &= ~SUPERCONTENTS_OPAQUE;
                                        if (tx->q2contents & Q2CONTENTS_SOLID)
                                                tx->q2contents = (tx->q2contents & ~Q2CONTENTS_SOLID) | Q2CONTENTS_WINDOW;
                                }
-                               if (q2flags & Q2SURF_FLOWING)
+                               if ((q2flags & Q2SURF_FLOWING) && tx->materialshaderpass != NULL)
                                {
-                                       tx->tcmods[0].tcmod = Q3TCMOD_SCROLL;
-                                       tx->tcmods[0].parms[0] = -1.6f;
-                                       tx->tcmods[0].parms[1] = 0.0f;
+                                       tx->materialshaderpass->tcmods[0].tcmod = Q3TCMOD_SCROLL;
+                                       if (q2flags & Q2SURF_WARP)
+                                               tx->materialshaderpass->tcmods[0].parms[0] = -0.5f;
+                                       else
+                                               tx->materialshaderpass->tcmods[0].parms[0] = -1.6f;
+                                       tx->materialshaderpass->tcmods[0].parms[1] = 0.0f;
+                               }
+                               if (q2flags & Q2SURF_ALPHATEST)
+                               {
+                                       // KMQUAKE2 and other modded engines added this flag for lit alpha tested surfaces
+                                       tx->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
+                               }
+                               else if (q2flags & (Q2SURF_TRANS33 | Q2SURF_TRANS66 | Q2SURF_WARP))
+                               {
+                                       if (!mod_q2bsp_littransparentsurfaces.integer)
+                                               tx->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
                                }
                                if (q2flags & Q2SURF_NODRAW)
                                {
@@ -4390,10 +4501,10 @@ static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
                                        tx->q2contents |= Q2CONTENTS_SOLID;
                                if (tx->q2flags & (Q2SURF_HINT | Q2SURF_SKIP))
                                        tx->q2contents = 0;
-                               tx->supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(loadmodel, tx->q2contents);
+                               tx->supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(tx->q2contents);
                                // set the current values to the base values
                                tx->currentframe = tx;
-                               tx->currentskinframe = tx->skinframes[0];
+                               tx->currentskinframe = tx->materialshaderpass != NULL ? tx->materialshaderpass->skinframes[0] : NULL;
                                tx->currentmaterialflags = tx->basematerialflags;
                                loadmodel->num_texturesperskin++;
                                loadmodel->num_textures = loadmodel->num_texturesperskin;
@@ -4415,8 +4526,9 @@ static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
        // if we encounter the textures out of order, the later ones won't mark the earlier ones in a sequence, so the earlier 
        for (i = 0, out = loadmodel->brushq1.texinfo;i < count;i++, out++)
        {
-               int j = i;
+               int j, k;
                texture_t *t = loadmodel->data_textures + out->textureindex;
+               t->currentframe = t; // fix the reallocated pointer
 
                // if this is not animated, skip it
                // if this is already processed, skip it (part of an existing sequence)
@@ -4590,6 +4702,9 @@ static void Mod_Q2BSP_LoadBrushes(sizebuf_t *sb)
        int i, j, firstside, numsides, contents, count, maxplanes, q3surfaceflags, supercontents;
        colplanef_t *planes;
        int structsize = 12;
+       qboolean brushmissingtextures;
+       int numbrushesmissingtextures = 0;
+       int numcreatedtextures = 0;
 
        if (sb->cursize % structsize)
                Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
@@ -4602,7 +4717,7 @@ static void Mod_Q2BSP_LoadBrushes(sizebuf_t *sb)
        maxplanes = 0;
        planes = NULL;
 
-       for (i = 0;i < count;i++, out++)
+       for (i = 0; i < count; i++, out++)
        {
                firstside = MSG_ReadLittleLong(sb);
                numsides = MSG_ReadLittleLong(sb);
@@ -4612,11 +4727,49 @@ static void Mod_Q2BSP_LoadBrushes(sizebuf_t *sb)
 
                out->firstbrushside = loadmodel->brush.data_brushsides + firstside;
                out->numbrushsides = numsides;
-               // not really the same...  we should store the q2 contents
-               out->texture = out->firstbrushside->texture;
                // convert the contents to our values
-               supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(loadmodel, contents);
+               supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(contents);
+
+               // problem: q2bsp brushes have contents but not a texture
+               // problem: q2bsp brushsides *may* have a texture or may not
+               // problem: all brushsides and brushes must have a texture for trace_hittexture functionality to work, and the collision code is engineered around this assumption
+               // solution: nasty hacks
+               brushmissingtextures = false;
+               out->texture = NULL;
+               for (j = 0; j < out->numbrushsides; j++)
+               {
+                       if (out->firstbrushside[j].texture == &mod_q1bsp_texture_solid)
+                               brushmissingtextures = true;
+                       else
+                       {
+                               // if we can find a matching texture on a brush side we can use it instead of creating one
+                               if (out->firstbrushside[j].texture->supercontents == supercontents)
+                                       out->texture = out->firstbrushside[j].texture;
+                       }
+               }
+               if (brushmissingtextures || out->texture == NULL)
+               {
+                       numbrushesmissingtextures++;
+                       // if we didn't find any appropriate texture (matching contents), we'll have to create one
+                       // we could search earlier ones for a matching one but that can be slow
+                       if (out->texture == NULL)
+                       {
+                               texture_t *validtexture;
+                               validtexture = (texture_t *)Mem_Alloc(loadmodel->mempool, sizeof(texture_t));
+                               dpsnprintf(validtexture->name, sizeof(validtexture->name), "brushcollision%i", numcreatedtextures);
+                               validtexture->surfaceflags = 0;
+                               validtexture->supercontents = supercontents;
+                               numcreatedtextures++;
+                               out->texture = validtexture;
+                       }
+                       // out->texture now contains a texture with appropriate contents, copy onto any missing sides
+                       for (j = 0; j < out->numbrushsides; j++)
+                               if (out->firstbrushside[j].texture == &mod_q1bsp_texture_solid)
+                                       out->firstbrushside[j].texture = out->texture;
+               }
 
+               // make a colbrush from the brush
+               q3surfaceflags = 0;
                // make a list of mplane_t structs to construct a colbrush from
                if (maxplanes < out->numbrushsides)
                {
@@ -4625,7 +4778,6 @@ static void Mod_Q2BSP_LoadBrushes(sizebuf_t *sb)
                                Mem_Free(planes);
                        planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
                }
-               q3surfaceflags = 0;
                for (j = 0;j < out->numbrushsides;j++)
                {
                        VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
@@ -4633,10 +4785,7 @@ static void Mod_Q2BSP_LoadBrushes(sizebuf_t *sb)
                        planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
                        planes[j].texture = out->firstbrushside[j].texture;
                        q3surfaceflags |= planes[j].q3surfaceflags;
-                       // LordHavoc: kind of a mean hack here, but we want the surfaces to have the brush contents
-                       out->firstbrushside[j].texture->supercontents = supercontents;
                }
-               // make the colbrush from the planes
                out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents, q3surfaceflags, out->texture, true);
 
                // this whole loop can take a while (e.g. on redstarrepublic4)
@@ -4644,6 +4793,8 @@ static void Mod_Q2BSP_LoadBrushes(sizebuf_t *sb)
        }
        if (planes)
                Mem_Free(planes);
+       if (numcreatedtextures)
+               Con_DPrintf("Mod_Q2BSP_LoadBrushes: %i brushes own sides that lack textures or have differing contents from the brush, %i textures have been created to describe these contents.\n", numbrushesmissingtextures, numcreatedtextures);
 }
 
 static void Mod_Q2BSP_LoadPOP(sizebuf_t *sb)
@@ -4788,8 +4939,6 @@ static void Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        mod->GetLightInfo = R_Q1BSP_GetLightInfo;
        mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
        mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
-       mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
-       mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
        mod->DrawLight = R_Q1BSP_DrawLight;
 
 // load into heap
@@ -4850,9 +4999,6 @@ static void Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        mod->numframes = 0;             // q2bsp animations are kind of special, frame is unbounded...
        mod->numskins = 1;
 
-       // make a single combined shadow mesh to allow optimized shadow volume creation
-       Mod_Q1BSP_CreateShadowMesh(loadmodel);
-
        if (loadmodel->brush.numsubmodels)
                loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
 
@@ -5038,8 +5184,8 @@ static void Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        Con_DPrintf("Stats for q2bsp model \"%s\": %i faces, %i nodes, %i leafs, %i clusters, %i clusterportals, mesh: %i vertices, %i triangles, %i surfaces\n", loadmodel->name, loadmodel->num_surfaces, loadmodel->brush.num_nodes, loadmodel->brush.num_leafs, mod->brush.num_pvsclusters, loadmodel->brush.num_portals, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->num_surfaces);
 }
 
-static int Mod_Q3BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents);
-static int Mod_Q3BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents);
+static int Mod_Q3BSP_SuperContentsFromNativeContents(int nativecontents);
+static int Mod_Q3BSP_NativeContentsFromSuperContents(int supercontents);
 
 static void Mod_Q3BSP_LoadEntities(lump_t *l)
 {
@@ -5127,11 +5273,11 @@ static void Mod_Q3BSP_LoadTextures(lump_t *l)
        for (i = 0;i < count;i++)
        {
                out[i].surfaceflags = LittleLong(in[i].surfaceflags);
-               out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in[i].contents));
-               Mod_LoadTextureFromQ3Shader(out + i, in[i].name, true, true, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS);
+               out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(LittleLong(in[i].contents));
+               Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, out + i, in[i].name, true, true, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL);
                // restore the surfaceflags and supercontents
                out[i].surfaceflags = LittleLong(in[i].surfaceflags);
-               out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in[i].contents));
+               out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(LittleLong(in[i].contents));
        }
 }
 
@@ -5617,7 +5763,7 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
                loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
 
        // allocate a texture pool if we need it
-       if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
+       if (loadmodel->texturepool == NULL)
                loadmodel->texturepool = R_AllocTexturePool();
 
        mergedpixels = (unsigned char *) Mem_Alloc(tempmempool, mergedwidth * mergedheight * 4);
@@ -5757,7 +5903,6 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
        int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, collisionvertices, collisiontriangles, numvertices, numtriangles, cxtess, cytess;
        float lightmaptcbase[2], lightmaptcscale[2];
        //int *originalelement3i;
-       //int *originalneighbor3i;
        float *originalvertex3f;
        //float *originalsvector3f;
        //float *originaltvector3f;
@@ -5977,7 +6122,7 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
        i = oldi;
        in = oldin;
        out = oldout;
-       Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
+       Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true);
        if (collisiontriangles)
        {
                loadmodel->brush.data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, collisionvertices * sizeof(float[3]));
@@ -6542,23 +6687,9 @@ static void Mod_Q3BSP_LightPoint(dp_model_t *model, const vec3_t p, vec3_t ambie
        q3dlightgrid_t *a, *s;
 
        // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
-       switch(vid.renderpath)
-       {
-       case RENDERPATH_GL20:
-       case RENDERPATH_D3D9:
-       case RENDERPATH_D3D10:
-       case RENDERPATH_D3D11:
-       case RENDERPATH_SOFT:
-       case RENDERPATH_GLES2:
-               // LordHavoc: FIXME: is this true?
-               stylescale = 1; // added while render
-               break;
-       case RENDERPATH_GL11:
-       case RENDERPATH_GL13:
-       case RENDERPATH_GLES1:
-               stylescale = r_refdef.scene.rtlightstylevalue[0];
-               break;
-       }
+       // LadyHavoc: FIXME: is this true?
+       stylescale = 1; // added while render
+       //stylescale = r_refdef.scene.rtlightstylevalue[0];
 
        if (!model->brushq3.num_lightgrid)
        {
@@ -6616,7 +6747,7 @@ static void Mod_Q3BSP_LightPoint(dp_model_t *model, const vec3_t p, vec3_t ambie
        //Con_Printf("result: ambient %f %f %f diffuse %f %f %f diffusenormal %f %f %f\n", ambientcolor[0], ambientcolor[1], ambientcolor[2], diffusecolor[0], diffusecolor[1], diffusecolor[2], diffusenormal[0], diffusenormal[1], diffusenormal[2]);
 }
 
-static int Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p1[3], double p2[3])
+static int Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p1[3], double p2[3], double endpos[3])
 {
        double t1, t2;
        double midf, mid[3];
@@ -6666,35 +6797,38 @@ static int Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p
                // or if start is solid and end is empty
                // as these degenerate cases usually indicate the eye is in solid and
                // should see the target point anyway
-               ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side    ], p1, mid);
+               ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side    ], p1, mid, endpos);
                if (ret != 0)
                        return ret;
-               ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ^ 1], mid, p2);
+               ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ^ 1], mid, p2, endpos);
                if (ret != 1)
                        return ret;
+               VectorCopy(mid, endpos);
                return 2;
        }
        return ((mleaf_t *)node)->clusterindex < 0;
 }
 
-static qboolean Mod_Q3BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end)
+static qboolean Mod_Q3BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs)
 {
        if (model->brush.submodel || mod_q3bsp_tracelineofsight_brushes.integer)
        {
                trace_t trace;
-               model->TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK);
-               return trace.fraction == 1;
+               model->TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
+               return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
        }
        else
        {
-               double tracestart[3], traceend[3];
+               double tracestart[3], traceend[3], traceendpos[3];
                VectorCopy(start, tracestart);
                VectorCopy(end, traceend);
-               return !Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend);
+               VectorCopy(end, traceendpos);
+               Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend, traceendpos);
+               return BoxesOverlap(traceendpos, traceendpos, acceptmins, acceptmaxs);
        }
 }
 
-void Mod_CollisionBIH_TracePoint(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask)
+void Mod_CollisionBIH_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)
 {
        const bih_t *bih;
        const bih_leaf_t *leaf;
@@ -6708,6 +6842,8 @@ void Mod_CollisionBIH_TracePoint(dp_model_t *model, const frameblend_t *frameble
        memset(trace, 0, sizeof(*trace));
        trace->fraction = 1;
        trace->hitsupercontentsmask = hitsupercontentsmask;
+       trace->skipsupercontentsmask = skipsupercontentsmask;
+       trace->skipmaterialflagsmask = skipmaterialflagsmask;
 
        bih = &model->collision_bih;
        if(!bih->nodes)
@@ -6758,7 +6894,7 @@ void Mod_CollisionBIH_TracePoint(dp_model_t *model, const frameblend_t *frameble
        }
 }
 
-static void Mod_CollisionBIH_TraceLineShared(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, const bih_t *bih)
+static void Mod_CollisionBIH_TraceLineShared(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, const bih_t *bih)
 {
        const bih_leaf_t *leaf;
        const bih_node_t *node;
@@ -6774,7 +6910,7 @@ static void Mod_CollisionBIH_TraceLineShared(dp_model_t *model, const frameblend
 
        if (VectorCompare(start, end))
        {
-               Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
+               Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
                return;
        }
 
@@ -6783,6 +6919,8 @@ static void Mod_CollisionBIH_TraceLineShared(dp_model_t *model, const frameblend
        memset(trace, 0, sizeof(*trace));
        trace->fraction = 1;
        trace->hitsupercontentsmask = hitsupercontentsmask;
+       trace->skipsupercontentsmask = skipsupercontentsmask;
+       trace->skipmaterialflagsmask = skipmaterialflagsmask;
 
        // push first node
        nodestackline[nodestackpos][0] = start[0];
@@ -6804,7 +6942,7 @@ static void Mod_CollisionBIH_TraceLineShared(dp_model_t *model, const frameblend
                sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + 1;
                sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + 1;
                sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + 1;
-               if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, node->mins, node->maxs))
+               if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, node->mins, node->maxs) && !collision_bih_fullrecursion.integer)
                        continue;
                if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
                {
@@ -6814,6 +6952,8 @@ static void Mod_CollisionBIH_TraceLineShared(dp_model_t *model, const frameblend
                        d2 = node->backmax - nodeend[axis];
                        d3 = nodestart[axis] - node->frontmin;
                        d4 = nodeend[axis] - node->frontmin;
+                       if (collision_bih_fullrecursion.integer)
+                               d1 = d2 = d3 = d4 = 1; // force full recursion
                        switch((d1 < 0) | ((d2 < 0) << 1) | ((d3 < 0) << 2) | ((d4 < 0) << 3))
                        {
                        case  0: /* >>>> */                     VectorCopy(nodestart,             nodestackline[nodestackpos]); VectorCopy(              nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back;                      VectorCopy(nodestart,             nodestackline[nodestackpos]); VectorCopy(              nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
@@ -6881,17 +7021,17 @@ static void Mod_CollisionBIH_TraceLineShared(dp_model_t *model, const frameblend
        }
 }
 
-void Mod_CollisionBIH_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)
+void Mod_CollisionBIH_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)
 {
        if (VectorCompare(start, end))
        {
-               Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
+               Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
                return;
        }
-       Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, &model->collision_bih);
+       Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, &model->collision_bih);
 }
 
-void Mod_CollisionBIH_TraceBrush(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, colbrushf_t *thisbrush_start, colbrushf_t *thisbrush_end, int hitsupercontentsmask)
+void Mod_CollisionBIH_TraceBrush(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, colbrushf_t *thisbrush_start, colbrushf_t *thisbrush_end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
 {
        const bih_t *bih;
        const bih_leaf_t *leaf;
@@ -6907,9 +7047,9 @@ void Mod_CollisionBIH_TraceBrush(dp_model_t *model, const frameblend_t *frameble
        if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(thisbrush_start->mins, thisbrush_start->maxs) && VectorCompare(thisbrush_end->mins, thisbrush_end->maxs))
        {
                if (VectorCompare(thisbrush_start->mins, thisbrush_end->mins))
-                       Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, thisbrush_start->mins, hitsupercontentsmask);
+                       Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, thisbrush_start->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
                else
-                       Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, thisbrush_start->mins, thisbrush_end->mins, hitsupercontentsmask);
+                       Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, thisbrush_start->mins, thisbrush_end->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
                return;
        }
 
@@ -6922,6 +7062,8 @@ void Mod_CollisionBIH_TraceBrush(dp_model_t *model, const frameblend_t *frameble
        memset(trace, 0, sizeof(*trace));
        trace->fraction = 1;
        trace->hitsupercontentsmask = hitsupercontentsmask;
+       trace->skipsupercontentsmask = skipsupercontentsmask;
+       trace->skipmaterialflagsmask = skipmaterialflagsmask;
 
        // calculate tracebox-like parameters for efficient culling
        VectorMAM(0.5f, thisbrush_start->mins, 0.5f, thisbrush_start->maxs, start);
@@ -7034,7 +7176,7 @@ void Mod_CollisionBIH_TraceBrush(dp_model_t *model, const frameblend_t *frameble
        }
 }
 
-void Mod_CollisionBIH_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)
+void Mod_CollisionBIH_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;
@@ -7046,25 +7188,25 @@ void Mod_CollisionBIH_TraceBox(dp_model_t *model, const frameblend_t *frameblend
        VectorAdd(end, boxmaxs, boxendmaxs);
        Collision_BrushForBox(&thisbrush_start, boxstartmins, boxstartmaxs, 0, 0, NULL);
        Collision_BrushForBox(&thisbrush_end, boxendmins, boxendmaxs, 0, 0, NULL);
-       Mod_CollisionBIH_TraceBrush(model, frameblend, skeleton, trace, &thisbrush_start.brush, &thisbrush_end.brush, hitsupercontentsmask);
+       Mod_CollisionBIH_TraceBrush(model, frameblend, skeleton, trace, &thisbrush_start.brush, &thisbrush_end.brush, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
 }
 
 
 int Mod_CollisionBIH_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
 {
        trace_t trace;
-       Mod_CollisionBIH_TracePoint(model, NULL, NULL, &trace, point, 0);
+       Mod_CollisionBIH_TracePoint(model, NULL, NULL, &trace, point, 0, 0, 0);
        return trace.startsupercontents;
 }
 
-qboolean Mod_CollisionBIH_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end)
+qboolean Mod_CollisionBIH_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs)
 {
        trace_t trace;
-       Mod_CollisionBIH_TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK);
-       return trace.fraction == 1;
+       Mod_CollisionBIH_TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
+       return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
 }
 
-void Mod_CollisionBIH_TracePoint_Mesh(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask)
+void Mod_CollisionBIH_TracePoint_Mesh(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)
 {
 #if 0
        // broken - needs to be modified to count front faces and backfaces to figure out if it is in solid
@@ -7075,12 +7217,16 @@ void Mod_CollisionBIH_TracePoint_Mesh(dp_model_t *model, const frameblend_t *fra
        memset(trace, 0, sizeof(*trace));
        trace->fraction = 1;
        trace->hitsupercontentsmask = hitsupercontentsmask;
+       trace->skipsupercontentsmask = skipsupercontentsmask;
+       trace->skipmaterialflagsmask = skipmaterialflagsmask;
 #if 0
-       Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask);
+       Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
        hitsupercontents = trace->hitsupercontents;
        memset(trace, 0, sizeof(*trace));
        trace->fraction = 1;
        trace->hitsupercontentsmask = hitsupercontentsmask;
+       trace->skipsupercontentsmask = skipsupercontentsmask;
+       trace->skipmaterialflagsmask = skipmaterialflagsmask;
        trace->startsupercontents = hitsupercontents;
 #endif
 }
@@ -7094,8 +7240,10 @@ int Mod_CollisionBIH_PointSuperContents_Mesh(struct model_s *model, int frame, c
        VectorSet(end, start[0], start[1], model->normalmins[2]);
        memset(&trace, 0, sizeof(trace));
        trace.fraction = 1;
-       trace.hitsupercontentsmask = 0;
-       Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask);
+       trace.hitsupercontentsmask = hitsupercontentsmask;
+       trace.skipsupercontentsmask = skipsupercontentsmask;
+       trace.skipmaterialflagsmask = skipmaterialflagsmask;
+       Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
        return trace.hitsupercontents;
 #else
        return 0;
@@ -7317,15 +7465,17 @@ static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, dp_model_t *mo
 
 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)
+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);
+               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++)
@@ -7336,7 +7486,7 @@ static void Mod_Q3BSP_TracePoint(dp_model_t *model, const frameblend_t *frameble
                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)
+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];
@@ -7345,13 +7495,15 @@ static void Mod_Q3BSP_TraceLine(dp_model_t *model, const frameblend_t *frameblen
 
        if (VectorCompare(start, end))
        {
-               Mod_Q3BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
+               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;
@@ -7359,7 +7511,7 @@ static void Mod_Q3BSP_TraceLine(dp_model_t *model, const frameblend_t *frameblen
        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);
+               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++)
@@ -7374,7 +7526,7 @@ static void Mod_Q3BSP_TraceLine(dp_model_t *model, const frameblend_t *frameblen
                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)
+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;
@@ -7384,9 +7536,9 @@ static void Mod_Q3BSP_TraceBrush(dp_model_t *model, const frameblend_t *frameble
        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);
+                       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);
+                       Mod_Q3BSP_TraceLine(model, frameblend, skeleton, trace, start->mins, end->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
                return;
        }
 
@@ -7394,6 +7546,8 @@ static void Mod_Q3BSP_TraceBrush(dp_model_t *model, const frameblend_t *frameble
        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;
@@ -7401,7 +7555,7 @@ static void Mod_Q3BSP_TraceBrush(dp_model_t *model, const frameblend_t *frameble
        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);
+               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++)
@@ -7416,7 +7570,7 @@ static void Mod_Q3BSP_TraceBrush(dp_model_t *model, const frameblend_t *frameble
                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)
+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;
@@ -7428,7 +7582,7 @@ static void Mod_Q3BSP_TraceBox(dp_model_t *model, const frameblend_t *frameblend
        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);
+       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)
@@ -7467,9 +7621,9 @@ static int Mod_Q3BSP_PointSuperContents(struct model_s *model, int frame, const
        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)
+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, &model->render_bih);
+       Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, &model->render_bih);
 }
 
 
@@ -7608,7 +7762,7 @@ bih_t *Mod_MakeCollisionBIH(dp_model_t *model, qboolean userendersurfaces, bih_t
        return out;
 }
 
-static int Mod_Q3BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents)
+static int Mod_Q3BSP_SuperContentsFromNativeContents(int nativecontents)
 {
        int supercontents = 0;
        if (nativecontents & CONTENTSQ3_SOLID)
@@ -7638,7 +7792,7 @@ static int Mod_Q3BSP_SuperContentsFromNativeContents(dp_model_t *model, int nati
        return supercontents;
 }
 
-static int Mod_Q3BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents)
+static int Mod_Q3BSP_NativeContentsFromSuperContents(int supercontents)
 {
        int nativecontents = 0;
        if (supercontents & SUPERCONTENTS_SOLID)
@@ -7695,6 +7849,7 @@ static void Mod_Q3BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        mod->brush.isbsp2 = false;
        mod->brush.isq2bsp = false;
        mod->brush.isq3bsp = true;
+       mod->brush.skymasking = true;
        mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
        mod->numskins = 1;
 
@@ -7734,8 +7889,6 @@ static void Mod_Q3BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        mod->GetLightInfo = R_Q1BSP_GetLightInfo;
        mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
        mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
-       mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
-       mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
        mod->DrawLight = R_Q1BSP_DrawLight;
 
        mod_base = (unsigned char *)header;
@@ -7810,9 +7963,6 @@ static void Mod_Q3BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
        // FIXME: shader alpha should replace r_wateralpha support in q3bsp
        loadmodel->brush.supportwateralpha = true;
 
-       // make a single combined shadow mesh to allow optimized shadow volume creation
-       Mod_Q1BSP_CreateShadowMesh(loadmodel);
-
        loadmodel->brush.num_leafs = 0;
        Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
 
@@ -7999,9 +8149,9 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
        int maxvn = 0, numvn = 1;
        char *texturenames = NULL;
        float dist, modelradius, modelyawradius, yawradius;
-       float *v = NULL;
-       float *vt = NULL;
-       float *vn = NULL;
+       float *obj_v = NULL;
+       float *obj_vt = NULL;
+       float *obj_vn = NULL;
        float mins[3];
        float maxs[3];
        float corner[3];
@@ -8015,7 +8165,7 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
        skinfile_t *skinfiles = NULL;
        unsigned char *data = NULL;
        int *submodelfirstsurface;
-       msurface_t *surface;
+       msurface_t *tempsurface;
        msurface_t *tempsurfaces;
 
        memset(&vfirst, 0, sizeof(vfirst));
@@ -8055,8 +8205,6 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
        loadmodel->GetLightInfo = R_Q1BSP_GetLightInfo;
        loadmodel->CompileShadowMap = R_Q1BSP_CompileShadowMap;
        loadmodel->DrawShadowMap = R_Q1BSP_DrawShadowMap;
-       loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
-       loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
        loadmodel->DrawLight = R_Q1BSP_DrawLight;
 
        skinfiles = Mod_LoadSkinFiles();
@@ -8121,19 +8269,19 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
                        if (maxv <= numv)
                        {
                                maxv = max(maxv * 2, 1024);
-                               v = (float *)Mem_Realloc(tempmempool, v, maxv * sizeof(float[3]));
+                               obj_v = (float *)Mem_Realloc(tempmempool, obj_v, maxv * sizeof(float[3]));
                        }
                        if(mod_obj_orientation.integer)
                        {
-                               v[numv*3+0] = atof(argv[1]);
-                               v[numv*3+2] = atof(argv[2]);
-                               v[numv*3+1] = atof(argv[3]);
+                               obj_v[numv*3+0] = atof(argv[1]);
+                               obj_v[numv*3+2] = atof(argv[2]);
+                               obj_v[numv*3+1] = atof(argv[3]);
                        }
                        else
                        {
-                               v[numv*3+0] = atof(argv[1]);
-                               v[numv*3+1] = atof(argv[2]);
-                               v[numv*3+2] = atof(argv[3]);
+                               obj_v[numv*3+0] = atof(argv[1]);
+                               obj_v[numv*3+1] = atof(argv[2]);
+                               obj_v[numv*3+2] = atof(argv[3]);
                        }
                        numv++;
                }
@@ -8142,10 +8290,10 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
                        if (maxvt <= numvt)
                        {
                                maxvt = max(maxvt * 2, 1024);
-                               vt = (float *)Mem_Realloc(tempmempool, vt, maxvt * sizeof(float[2]));
+                               obj_vt = (float *)Mem_Realloc(tempmempool, obj_vt, maxvt * sizeof(float[2]));
                        }
-                       vt[numvt*2+0] = atof(argv[1]);
-                       vt[numvt*2+1] = 1-atof(argv[2]);
+                       obj_vt[numvt*2+0] = atof(argv[1]);
+                       obj_vt[numvt*2+1] = 1-atof(argv[2]);
                        numvt++;
                }
                else if (!strcmp(argv[0], "vn"))
@@ -8153,19 +8301,19 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
                        if (maxvn <= numvn)
                        {
                                maxvn = max(maxvn * 2, 1024);
-                               vn = (float *)Mem_Realloc(tempmempool, vn, maxvn * sizeof(float[3]));
+                               obj_vn = (float *)Mem_Realloc(tempmempool, obj_vn, maxvn * sizeof(float[3]));
                        }
                        if(mod_obj_orientation.integer)
                        {
-                               vn[numvn*3+0] = atof(argv[1]);
-                               vn[numvn*3+2] = atof(argv[2]);
-                               vn[numvn*3+1] = atof(argv[3]);
+                               obj_vn[numvn*3+0] = atof(argv[1]);
+                               obj_vn[numvn*3+2] = atof(argv[2]);
+                               obj_vn[numvn*3+1] = atof(argv[3]);
                        }
                        else
                        {
-                               vn[numvn*3+0] = atof(argv[1]);
-                               vn[numvn*3+1] = atof(argv[2]);
-                               vn[numvn*3+2] = atof(argv[3]);
+                               obj_vn[numvn*3+0] = atof(argv[1]);
+                               obj_vn[numvn*3+1] = atof(argv[2]);
+                               obj_vn[numvn*3+2] = atof(argv[3]);
                        }
                        numvn++;
                }
@@ -8206,12 +8354,12 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
                                vcurrent.nextindex = -1;
                                vcurrent.textureindex = textureindex;
                                vcurrent.submodelindex = submodelindex;
-                               if (v && index1 >= 0 && index1 < numv)
-                                       VectorCopy(v + 3*index1, vcurrent.v);
-                               if (vt && index2 >= 0 && index2 < numvt)
-                                       Vector2Copy(vt + 2*index2, vcurrent.vt);
-                               if (vn && index3 >= 0 && index3 < numvn)
-                                       VectorCopy(vn + 3*index3, vcurrent.vn);
+                               if (obj_v && index1 >= 0 && index1 < numv)
+                                       VectorCopy(obj_v + 3*index1, vcurrent.v);
+                               if (obj_vt && index2 >= 0 && index2 < numvt)
+                                       Vector2Copy(obj_vt + 2*index2, vcurrent.vt);
+                               if (obj_vn && index3 >= 0 && index3 < numvn)
+                                       VectorCopy(obj_vn + 3*index3, vcurrent.vn);
                                if (numtriangles == 0)
                                {
                                        VectorCopy(vcurrent.v, mins);
@@ -8315,7 +8463,7 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
        // allocate storage for the worst case number of surfaces, later we resize
        tempsurfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, numtextures * loadmodel->brush.numsubmodels * sizeof(msurface_t));
        submodelfirstsurface = (int *)Mem_Alloc(loadmodel->mempool, (loadmodel->brush.numsubmodels+1) * sizeof(int));
-       surface = tempsurfaces;
+       tempsurface = tempsurfaces;
        for (submodelindex = 0;submodelindex < loadmodel->brush.numsubmodels;submodelindex++)
        {
                submodelfirstsurface[submodelindex] = loadmodel->num_surfaces;
@@ -8334,10 +8482,10 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
                        surfacevertices = 0;
                        surfaceelements = 0;
                        // we hack in a texture index in the surface to be fixed up later...
-                       surface->texture = (texture_t *)((size_t)textureindex);
+                       tempsurface->texture = (texture_t *)((size_t)textureindex);
                        // calculate bounds as we go
-                       VectorCopy(thisvertex->v, surface->mins);
-                       VectorCopy(thisvertex->v, surface->maxs);
+                       VectorCopy(thisvertex->v, tempsurface->mins);
+                       VectorCopy(thisvertex->v, tempsurface->maxs);
                        for (;vertexindex < numtriangles*3;vertexindex++)
                        {
                                thisvertex = vertices + vertexindex;
@@ -8346,12 +8494,12 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
                                if (thisvertex->textureindex != textureindex)
                                        continue;
                                // add vertex to surface bounds
-                               surface->mins[0] = min(surface->mins[0], thisvertex->v[0]);
-                               surface->mins[1] = min(surface->mins[1], thisvertex->v[1]);
-                               surface->mins[2] = min(surface->mins[2], thisvertex->v[2]);
-                               surface->maxs[0] = max(surface->maxs[0], thisvertex->v[0]);
-                               surface->maxs[1] = max(surface->maxs[1], thisvertex->v[1]);
-                               surface->maxs[2] = max(surface->maxs[2], thisvertex->v[2]);
+                               tempsurface->mins[0] = min(tempsurface->mins[0], thisvertex->v[0]);
+                               tempsurface->mins[1] = min(tempsurface->mins[1], thisvertex->v[1]);
+                               tempsurface->mins[2] = min(tempsurface->mins[2], thisvertex->v[2]);
+                               tempsurface->maxs[0] = max(tempsurface->maxs[0], thisvertex->v[0]);
+                               tempsurface->maxs[1] = max(tempsurface->maxs[1], thisvertex->v[1]);
+                               tempsurface->maxs[2] = max(tempsurface->maxs[2], thisvertex->v[2]);
                                // add the vertex if it is not found in the merged set, and
                                // get its index (triangle element) for the surface
                                vertexhashindex = (unsigned int)(thisvertex->v[0] * 3571 + thisvertex->v[0] * 1777 + thisvertex->v[0] * 457) % (unsigned int)vertexhashsize;
@@ -8374,13 +8522,13 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
                                surfaceelements++;
                        }
                        surfacetriangles = surfaceelements / 3;
-                       surface->num_vertices = surfacevertices;
-                       surface->num_triangles = surfacetriangles;
-                       surface->num_firstvertex = firstvertex;
-                       surface->num_firsttriangle = firsttriangle;
-                       firstvertex += surface->num_vertices;
-                       firsttriangle += surface->num_triangles;
-                       surface++;
+                       tempsurface->num_vertices = surfacevertices;
+                       tempsurface->num_triangles = surfacetriangles;
+                       tempsurface->num_firstvertex = firstvertex;
+                       tempsurface->num_firsttriangle = firsttriangle;
+                       firstvertex += tempsurface->num_vertices;
+                       firsttriangle += tempsurface->num_triangles;
+                       tempsurface++;
                        loadmodel->num_surfaces++;
                }
        }
@@ -8392,14 +8540,12 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
        // allocate storage for final mesh data
        loadmodel->num_textures = numtextures * loadmodel->numskins;
        loadmodel->num_texturesperskin = numtextures;
-       data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + numtriangles * sizeof(int[3]) + (numvertices <= 65536 ? numtriangles * sizeof(unsigned short[3]) : 0) + (r_enableshadowvolumes.integer ? numtriangles * sizeof(int[3]) : 0) + numvertices * sizeof(float[14]) + loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
+       data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + numtriangles * sizeof(int[3]) + (numvertices <= 65536 ? numtriangles * sizeof(unsigned short[3]) : 0) + numvertices * sizeof(float[14]) + loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
        loadmodel->brush.submodels = (dp_model_t **)data;data += loadmodel->brush.numsubmodels * sizeof(dp_model_t *);
        loadmodel->sortedmodelsurfaces = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
        loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
        loadmodel->surfmesh.num_vertices = numvertices;
        loadmodel->surfmesh.num_triangles = numtriangles;
-       if (r_enableshadowvolumes.integer)
-               loadmodel->surfmesh.data_neighbor3i = (int *)data;data += numtriangles * sizeof(int[3]);
        loadmodel->surfmesh.data_vertex3f = (float *)data;data += numvertices * sizeof(float[3]);
        loadmodel->surfmesh.data_svector3f = (float *)data;data += numvertices * sizeof(float[3]);
        loadmodel->surfmesh.data_tvector3f = (float *)data;data += numvertices * sizeof(float[3]);
@@ -8427,26 +8573,21 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
        // free data
        Mem_Free(vertices);
        Mem_Free(texturenames);
-       Mem_Free(v);
-       Mem_Free(vt);
-       Mem_Free(vn);
+       Mem_Free(obj_v);
+       Mem_Free(obj_vt);
+       Mem_Free(obj_vn);
        Mem_Free(vertexhashtable);
        Mem_Free(vertexhashdata);
 
-       // make a single combined shadow mesh to allow optimized shadow volume creation
-       Mod_Q1BSP_CreateShadowMesh(loadmodel);
-
        // compute all the mesh information that was not loaded from the file
        if (loadmodel->surfmesh.data_element3s)
                for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
                        loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
-       Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles, 0, loadmodel->surfmesh.num_vertices, __FILE__, __LINE__);
+       Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles, 0, loadmodel->surfmesh.num_vertices, __FILE__, __LINE__);
        // generate normals if the file did not have them
        if (!VectorLength2(loadmodel->surfmesh.data_normal3f))
                Mod_BuildNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_normal3f, r_smoothnormals_areaweighting.integer != 0);
        Mod_BuildTextureVectorsFromNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, r_smoothnormals_areaweighting.integer != 0);
-       if (loadmodel->surfmesh.data_neighbor3i)
-               Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
 
        // if this is a worldmodel and has no BSP tree, create a fake one for the purpose
        loadmodel->brush.num_visleafs = 1;
@@ -8519,24 +8660,24 @@ void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
                for (j = 0;j < mod->nummodelsurfaces;j++)
                {
                        const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
-                       const float *v = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
+                       const float *v3f = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
                        int k;
                        if (!surface->num_vertices)
                                continue;
                        if (!l)
                        {
                                l = true;
-                               VectorCopy(v, mod->normalmins);
-                               VectorCopy(v, mod->normalmaxs);
+                               VectorCopy(v3f, mod->normalmins);
+                               VectorCopy(v3f, mod->normalmaxs);
                        }
-                       for (k = 0;k < surface->num_vertices;k++, v += 3)
+                       for (k = 0;k < surface->num_vertices;k++, v3f += 3)
                        {
-                               mod->normalmins[0] = min(mod->normalmins[0], v[0]);
-                               mod->normalmins[1] = min(mod->normalmins[1], v[1]);
-                               mod->normalmins[2] = min(mod->normalmins[2], v[2]);
-                               mod->normalmaxs[0] = max(mod->normalmaxs[0], v[0]);
-                               mod->normalmaxs[1] = max(mod->normalmaxs[1], v[1]);
-                               mod->normalmaxs[2] = max(mod->normalmaxs[2], v[2]);
+                               mod->normalmins[0] = min(mod->normalmins[0], v3f[0]);
+                               mod->normalmins[1] = min(mod->normalmins[1], v3f[1]);
+                               mod->normalmins[2] = min(mod->normalmins[2], v3f[2]);
+                               mod->normalmaxs[0] = max(mod->normalmaxs[0], v3f[0]);
+                               mod->normalmaxs[1] = max(mod->normalmaxs[1], v3f[1]);
+                               mod->normalmaxs[2] = max(mod->normalmaxs[2], v3f[2]);
                        }
                }
                corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));