]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - model_brush.c
fix lod group comparing for pos/neg zeroes
[xonotic/darkplaces.git] / model_brush.c
index 7b3efb2bc63a5982a8b0c1b625bf4a7c62a800a1..92c9f154ea04502cc37d6308ce63b4830601cc1a 100644 (file)
@@ -43,6 +43,7 @@ cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1", "en
 cvar_t mod_q3bsp_optimizedtraceline = {0, "mod_q3bsp_optimizedtraceline", "1", "whether to use optimized traceline code for line traces (as opposed to tracebox code)"};
 cvar_t mod_q3bsp_debugtracebrush = {0, "mod_q3bsp_debugtracebrush", "0", "selects different tracebrush bsp recursion algorithms (for debugging purposes only)"};
 cvar_t mod_q3bsp_lightmapmergepower = {CVAR_SAVE, "mod_q3bsp_lightmapmergepower", "4", "merges the quake3 128x128 lightmap textures into larger lightmap group textures to speed up rendering, 1 = 256x256, 2 = 512x512, 3 = 1024x1024, 4 = 2048x2048, 5 = 4096x4096, ..."};
+cvar_t mod_q3bsp_nolightmaps = {CVAR_SAVE, "mod_q3bsp_nolightmaps", "0", "do not load lightmaps in Q3BSP maps (to save video RAM, but be warned: it looks ugly)"};
 
 static texture_t mod_q1bsp_texture_solid;
 static texture_t mod_q1bsp_texture_sky;
@@ -69,6 +70,7 @@ void Mod_BrushInit(void)
        Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
        Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
        Cvar_RegisterVariable(&mod_q3bsp_lightmapmergepower);
+       Cvar_RegisterVariable(&mod_q3bsp_nolightmaps);
 
        memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
        strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
@@ -96,7 +98,7 @@ void Mod_BrushInit(void)
        mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
 }
 
-static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
+static mleaf_t *Mod_Q1BSP_PointInLeaf(dp_model_t *model, const vec3_t p)
 {
        mnode_t *node;
 
@@ -112,7 +114,7 @@ static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
        return (mleaf_t *)node;
 }
 
-static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, unsigned char *out, int outsize)
+static void Mod_Q1BSP_AmbientSoundLevelsForPoint(dp_model_t *model, const vec3_t p, unsigned char *out, int outsize)
 {
        int i;
        mleaf_t *leaf;
@@ -131,7 +133,7 @@ static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p,
                memset(out, 0, outsize);
 }
 
-static int Mod_Q1BSP_FindBoxClusters(model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
+static int Mod_Q1BSP_FindBoxClusters(dp_model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
 {
        int numclusters = 0;
        int nodestackindex = 0;
@@ -197,7 +199,7 @@ static int Mod_Q1BSP_FindBoxClusters(model_t *model, const vec3_t mins, const ve
        return numclusters;
 }
 
-static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
+static int Mod_Q1BSP_BoxTouchingPVS(dp_model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
 {
        int nodestackindex = 0;
        mnode_t *node, *nodestack[1024];
@@ -268,7 +270,7 @@ static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const unsigned char *pvs, co
        return false;
 }
 
-static int Mod_Q1BSP_BoxTouchingLeafPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
+static int Mod_Q1BSP_BoxTouchingLeafPVS(dp_model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
 {
        int nodestackindex = 0;
        mnode_t *node, *nodestack[1024];
@@ -339,7 +341,7 @@ static int Mod_Q1BSP_BoxTouchingLeafPVS(model_t *model, const unsigned char *pvs
        return false;
 }
 
-static int Mod_Q1BSP_BoxTouchingVisibleLeafs(model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
+static int Mod_Q1BSP_BoxTouchingVisibleLeafs(dp_model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
 {
        int nodestackindex = 0;
        mnode_t *node, *nodestack[1024];
@@ -414,7 +416,7 @@ typedef struct findnonsolidlocationinfo_s
        vec_t radius;
        vec3_t nudge;
        vec_t bestdist;
-       model_t *model;
+       dp_model_t *model;
 }
 findnonsolidlocationinfo_t;
 
@@ -533,7 +535,7 @@ static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, m
        }
 }
 
-static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
+static void Mod_Q1BSP_FindNonSolidLocation(dp_model_t *model, const vec3_t in, vec3_t out, float radius)
 {
        int i;
        findnonsolidlocationinfo_t info;
@@ -557,7 +559,7 @@ static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3
        VectorCopy(info.center, out);
 }
 
-int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
+int Mod_Q1BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents)
 {
        switch(nativecontents)
        {
@@ -577,7 +579,7 @@ int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents
        return 0;
 }
 
-int Mod_Q1BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
+int Mod_Q1BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents)
 {
        if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
                return CONTENTS_SOLID;
@@ -1071,7 +1073,7 @@ static qboolean Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t s
        return Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend) != 2;
 }
 
-static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(model_t *model, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const mnode_t *node, float x, float y, float startz, float endz)
+static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(dp_model_t *model, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const mnode_t *node, float x, float y, float startz, float endz)
 {
        int side;
        float front, back;
@@ -1190,7 +1192,7 @@ loc0:
        }
 }
 
-void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
+void Mod_Q1BSP_LightPoint(dp_model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
 {
        // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
        VectorSet(diffusenormal, 0, 0, 1);
@@ -1411,13 +1413,13 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
                // copy name, but only up to 16 characters
                // (the output buffer can hold more than this, but the input buffer is
                //  only 16)
-               for (j = 0;dmiptex->name[j] && j < 16;j++)
+               for (j = 0;j < 16 && dmiptex->name[j];j++)
                        name[j] = dmiptex->name[j];
                name[j] = 0;
 
                if (!name[0])
                {
-                       sprintf(name, "unnamed%i", i);
+                       dpsnprintf(name, sizeof(name), "unnamed%i", i);
                        Con_DPrintf("%s: warning: renaming unnamed texture to %s\n", loadmodel->name, name);
                }
 
@@ -1500,9 +1502,9 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
                        }
                        else
                        {
-                               skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s/%s", mapname, tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS, false);
+                               skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s/%s", mapname, tx->name), TEXF_ALPHA | TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS, false);
                                if (!skinframe)
-                                       skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s", tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS, false);
+                                       skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s", tx->name), TEXF_ALPHA | TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS, false);
                                if (!skinframe)
                                {
                                        // did not find external texture, load it from the bsp or wad3
@@ -1519,13 +1521,13 @@ static void Mod_Q1BSP_LoadTextures(lump_t *l)
                                                {
                                                        tx->width = image_width;
                                                        tx->height = image_height;
-                                                       skinframe = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), pixels, image_width, image_height);
+                                                       skinframe = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_ALPHA | TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), pixels, image_width, image_height);
                                                }
                                                if (freepixels)
                                                        Mem_Free(freepixels);
                                        }
                                        else if (mtdata) // texture included
-                                               skinframe = R_SkinFrame_LoadInternalQuake(tx->name, TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), false, r_fullbrights.integer, mtdata, tx->width, tx->height);
+                                               skinframe = R_SkinFrame_LoadInternalQuake(tx->name, TEXF_ALPHA | TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), false, r_fullbrights.integer, mtdata, tx->width, tx->height);
                                }
                                // if skinframe is still NULL the "missing" texture will be used
                                if (skinframe)
@@ -1833,8 +1835,9 @@ static void Mod_Q1BSP_LoadEntities(lump_t *l)
        loadmodel->brush.entities = NULL;
        if (!l->filelen)
                return;
-       loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
+       loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen + 1);
        memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
+       loadmodel->brush.entities[l->filelen] = 0;
        if (loadmodel->brush.ishlbsp)
                Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
 }
@@ -2233,6 +2236,8 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
 
        loadmodel->num_surfaces = count;
 
+       loadmodel->brushq1.lightmapupdateflags = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*sizeof(unsigned char));
+
        totalverts = 0;
        totaltris = 0;
        for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
@@ -2380,7 +2385,7 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
                        // additionally this is used by the later code to see if a
                        // lightmap is needed on this surface (rather than duplicating the
                        // logic above)
-                       surface->cached_dlight = true;
+                       loadmodel->brushq1.lightmapupdateflags[surfacenum] = true;
                }
        }
 
@@ -2402,7 +2407,7 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
 
                for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
                {
-                       int i, iu, iv, lightmapx, lightmapy;
+                       int i, iu, iv, lightmapx = 0, lightmapy = 0;
                        float u, v, ubase, vbase, uscale, vscale;
 
                        smax = surface->lightmapinfo->extents[0] >> 4;
@@ -2410,11 +2415,6 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
                        ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
                        tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 
-                       // stainmap for permanent marks on walls
-                       surface->lightmapinfo->stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
-                       // clear to white
-                       memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
-
                        if (!lightmaptexture || !Mod_Q1BSP_AllocLightmapBlock(&allocState, lightmapsize, lightmapsize, ssize, tsize, &lightmapx, &lightmapy))
                        {
                                // allocate a texture pool if we need it
@@ -2451,7 +2451,36 @@ static void Mod_Q1BSP_LoadFaces(lump_t *l)
                        }
 
                }
+
+               if (cl_stainmaps.integer)
+               {
+                       // allocate stainmaps for permanent marks on walls
+                       int stainmapsize = 0;
+                       unsigned char *stainsamples = NULL;
+                       for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
+                       {
+                               ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
+                               tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
+                               stainmapsize += ssize * tsize * 3;
+                       }
+                       // allocate and clear to white
+                       stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, stainmapsize);
+                       memset(stainsamples, 255, stainmapsize);
+                       // assign pointers
+                       for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
+                       {
+                               ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
+                               tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
+                               surface->lightmapinfo->stainsamples = stainsamples;
+                               stainsamples += ssize * tsize * 3;
+                       }
+               }
        }
+
+       // generate ushort elements array if possible
+       if (loadmodel->surfmesh.data_element3s)
+               for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
+                       loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
 }
 
 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
@@ -3260,7 +3289,7 @@ static void Mod_Q1BSP_MakePortals(void)
 
 //Returns PVS data for a given point
 //(note: can return NULL)
-static unsigned char *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
+static unsigned char *Mod_Q1BSP_GetPVS(dp_model_t *model, const vec3_t p)
 {
        mnode_t *node;
        node = model->brush.data_nodes;
@@ -3272,7 +3301,7 @@ static unsigned char *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
                return NULL;
 }
 
-static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
+static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(dp_model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
 {
        while (node->plane)
        {
@@ -3300,7 +3329,7 @@ static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org,
 
 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
 //of the given point.
-static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength, qboolean merge)
+static int Mod_Q1BSP_FatPVS(dp_model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength, qboolean merge)
 {
        int bytes = model->brush.num_pvsclusterbytes;
        bytes = min(bytes, pvsbufferlength);
@@ -3315,7 +3344,7 @@ static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsi
        return bytes;
 }
 
-static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
+static void Mod_Q1BSP_RoundUpToHullSize(dp_model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
 {
        vec3_t size;
        const hull_t *hull;
@@ -3348,7 +3377,7 @@ static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, co
        VectorAdd(inmins, hull->clip_size, outmaxs);
 }
 
-void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
+void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 {
        int i, j, k;
        dheader_t *header;
@@ -3487,7 +3516,7 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
        Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
 
        if (loadmodel->brush.numsubmodels)
-               loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
+               loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
 
        // LordHavoc: to clear the fog around the original quake submodel code, I
        // will explain:
@@ -3536,7 +3565,7 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
                        if (!loadmodel->isworldmodel)
                                continue;
                        // duplicate the basic information
-                       sprintf(name, "*%i", i);
+                       dpsnprintf(name, sizeof(name), "*%i", i);
                        mod = Mod_FindName(name);
                        // copy the base model to this one
                        *mod = *loadmodel;
@@ -3591,11 +3620,15 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
                        mod->brush.LightPoint = NULL;
                        mod->brush.AmbientSoundLevelsForPoint = NULL;
                }
+               // copy the submodel bounds, then enlarge the yaw and rotated bounds according to radius
+               VectorCopy(bm->mins, mod->normalmins);
+               VectorCopy(bm->maxs, mod->normalmaxs);
+               VectorCopy(bm->mins, mod->yawmins);
+               VectorCopy(bm->maxs, mod->yawmaxs);
+               VectorCopy(bm->mins, mod->rotatedmins);
+               VectorCopy(bm->maxs, mod->rotatedmaxs);
                if (mod->nummodelsurfaces)
                {
-                       // LordHavoc: calculate bmodel bounding box rather than trusting what it says
-                       mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
-                       mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
                        modelyawradius = 0;
                        modelradius = 0;
                        for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
@@ -3608,12 +3641,6 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
                                // calculate bounding shapes
                                for (k = 0, vec = (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
                                {
-                                       if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
-                                       if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
-                                       if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
-                                       if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
-                                       if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
-                                       if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
                                        dist = vec[0]*vec[0]+vec[1]*vec[1];
                                        if (modelyawradius < dist)
                                                modelyawradius = dist;
@@ -3624,16 +3651,21 @@ void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
                        }
                        modelyawradius = sqrt(modelyawradius);
                        modelradius = sqrt(modelradius);
-                       mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
-                       mod->yawmins[2] = mod->normalmins[2];
-                       mod->yawmaxs[2] = mod->normalmaxs[2];
-                       mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
-                       mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
+                       mod->yawmins[0] = min(mod->yawmins[0], -modelyawradius);
+                       mod->yawmaxs[0] = min(mod->yawmaxs[0], -modelyawradius);
+                       mod->yawmins[1] = min(mod->yawmins[1],  modelyawradius);
+                       mod->yawmaxs[1] = min(mod->yawmaxs[1],  modelyawradius);
+                       mod->rotatedmins[0] = min(mod->rotatedmins[0], -modelradius);
+                       mod->rotatedmaxs[0] = min(mod->rotatedmaxs[0],  modelradius);
+                       mod->rotatedmins[1] = min(mod->rotatedmins[1], -modelradius);
+                       mod->rotatedmaxs[1] = min(mod->rotatedmaxs[1],  modelradius);
+                       mod->rotatedmins[2] = min(mod->rotatedmins[2], -modelradius);
+                       mod->rotatedmaxs[2] = min(mod->rotatedmaxs[2],  modelradius);
                        mod->radius = modelradius;
                        mod->radius2 = modelradius * modelradius;
 
                        // build lightstyle update chains
-                       // (used to rapidly mark surface->cached_dlight on many surfaces
+                       // (used to rapidly mark lightmapupdateflags on many surfaces
                        // when d_lightstylevalue changes)
                        memset(stylecounts, 0, sizeof(stylecounts));
                        for (k = 0;k < mod->nummodelsurfaces;k++)
@@ -4064,7 +4096,7 @@ static void Mod_Q2BSP_LoadModels(lump_t *l)
 */
 }
 
-void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
+void static Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 {
        int i;
        q2dheader_t *header;
@@ -4123,8 +4155,8 @@ void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
        Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
 }
 
-static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
-static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
+static int Mod_Q3BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents);
+static int Mod_Q3BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents);
 
 static void Mod_Q3BSP_LoadEntities(lump_t *l)
 {
@@ -4136,8 +4168,9 @@ static void Mod_Q3BSP_LoadEntities(lump_t *l)
        loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
        if (!l->filelen)
                return;
-       loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
+       loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen + 1);
        memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
+       loadmodel->brush.entities[l->filelen] = 0;
        data = loadmodel->brush.entities;
        // some Q3 maps override the lightgrid_cellsize with a worldspawn key
        if (data && COM_ParseToken_Simple(&data, false, false) && com_token[0] == '{')
@@ -4159,6 +4192,9 @@ static void Mod_Q3BSP_LoadEntities(lump_t *l)
                        strlcpy(value, com_token, sizeof(value));
                        if (!strcmp("gridsize", key))
                        {
+#if _MSC_VER >= 1400
+#define sscanf sscanf_s
+#endif
                                if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
                                        VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
                        }
@@ -4193,7 +4229,7 @@ static void Mod_Q3BSP_LoadTextures(lump_t *l)
                return;
 
        for (i = 0;i < count;i++, in++, out++)
-               Mod_LoadTextureFromQ3Shader(out, out->name, true, true, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS);
+               Mod_LoadTextureFromQ3Shader(out, out->name, true, true, TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS);
 }
 
 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
@@ -4249,6 +4285,34 @@ static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
        }
 }
 
+static void Mod_Q3BSP_LoadBrushSides_IG(lump_t *l)
+{
+       q3dbrushside_ig_t *in;
+       q3mbrushside_t *out;
+       int i, n, count;
+
+       in = (q3dbrushside_ig_t *)(mod_base + l->fileofs);
+       if (l->filelen % sizeof(*in))
+               Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
+       count = l->filelen / sizeof(*in);
+       out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
+
+       loadmodel->brush.data_brushsides = out;
+       loadmodel->brush.num_brushsides = count;
+
+       for (i = 0;i < count;i++, in++, out++)
+       {
+               n = LittleLong(in->planeindex);
+               if (n < 0 || n >= loadmodel->brush.num_planes)
+                       Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
+               out->plane = loadmodel->brush.data_planes + n;
+               n = LittleLong(in->textureindex);
+               if (n < 0 || n >= loadmodel->num_textures)
+                       Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
+               out->texture = loadmodel->data_textures + n;
+       }
+}
+
 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
 {
        q3dbrush_t *in;
@@ -4395,19 +4459,85 @@ static void Mod_Q3BSP_LoadTriangles(lump_t *l)
 
 static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
 {
-       q3dlightmap_t *in;
+       q3dlightmap_t *input_pointer;
        int i, j, k, count, power, power2, mask, endlightmap, mergewidth, mergeheight;
        unsigned char *c;
-       unsigned char convertedpixels[128*128*4];
 
-       if (!l->filelen)
-               return;
+       unsigned char *convertedpixels;
+       char mapname[MAX_QPATH];
+       int size, bytesperpixel, rgbmap[3];
+       qboolean external;
+       unsigned char *inpixels[10000]; // max count q3map2 can output (it uses 4 digits)
+
+       // defaults for q3bsp
+       size = 128;
+       bytesperpixel = 3;
+       rgbmap[0] = 2;
+       rgbmap[1] = 1;
+       rgbmap[2] = 0;
+       external = false;
+       loadmodel->brushq3.lightmapsize = 128;
+
        if (cls.state == ca_dedicated)
                return;
-       in = (q3dlightmap_t *)(mod_base + l->fileofs);
-       if (l->filelen % sizeof(*in))
-               Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
-       count = l->filelen / sizeof(*in);
+
+       if(mod_q3bsp_nolightmaps.integer)
+       {
+               return;
+       }
+       else if(l->filelen)
+       {
+               // prefer internal LMs for compatibility (a BSP contains no info on whether external LMs exist)
+               if (developer_loading.integer)
+                       Con_Printf("Using internal lightmaps\n");
+               input_pointer = (q3dlightmap_t *)(mod_base + l->fileofs);
+               if (l->filelen % sizeof(*input_pointer))
+                       Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
+               count = l->filelen / sizeof(*input_pointer);
+               for(i = 0; i < count; ++i)
+                       inpixels[i] = input_pointer[i].rgb;
+       }
+       else
+       {
+               // no internal lightmaps
+               // try external lightmaps
+               if (developer_loading.integer)
+                       Con_Printf("Using external lightmaps\n");
+               FS_StripExtension(loadmodel->name, mapname, sizeof(mapname));
+               inpixels[0] = loadimagepixelsbgra(va("%s/lm_%04d", mapname, 0), false, false);
+               if(!inpixels[0])
+                       return;
+
+               // using EXTERNAL lightmaps instead
+               if(image_width != (int) CeilPowerOf2(image_width) || image_width != image_height)
+               {
+                       Mem_Free(inpixels[0]);
+                       Host_Error("Mod_Q3BSP_LoadLightmaps: invalid external lightmap size in %s",loadmodel->name);
+               }
+
+               size = image_width;
+               bytesperpixel = 4;
+               rgbmap[0] = 0;
+               rgbmap[1] = 1;
+               rgbmap[2] = 2;
+               external = true;
+
+               for(count = 1; ; ++count)
+               {
+                       inpixels[count] = loadimagepixelsbgra(va("%s/lm_%04d", mapname, count), false, false);
+                       if(!inpixels[count])
+                               break; // we got all of them
+                       if(image_width != size || image_height != size)
+                       {
+                               for(i = 0; i <= count; ++i)
+                                       Mem_Free(inpixels[i]);
+                               Host_Error("Mod_Q3BSP_LoadLightmaps: invalid external lightmap size in %s",loadmodel->name);
+                       }
+               }
+       }
+
+       convertedpixels = Mem_Alloc(tempmempool, size*size*4);
+       loadmodel->brushq3.lightmapsize = size;
        loadmodel->brushq3.num_originallightmaps = count;
 
        // now check the surfaces to see if any of them index an odd numbered
@@ -4450,11 +4580,17 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
        // blank lightmaps, which must be handled properly as well
        if (endlightmap == 1 && count > 1)
        {
-               c = in[1].rgb;
-               for (i = 0;i < 128*128*3;i++)
-                       if (c[i])
+               c = inpixels[1];
+               for (i = 0;i < size*size;i++)
+               {
+                       if (c[bytesperpixel*i + rgbmap[0]])
+                               break;
+                       if (c[bytesperpixel*i + rgbmap[1]])
                                break;
-               if (i == 128*128*3)
+                       if (c[bytesperpixel*i + rgbmap[2]])
+                               break;
+               }
+               if (i == size*size)
                {
                        // all pixels in the unused lightmap were black...
                        loadmodel->brushq3.deluxemapping = false;
@@ -4467,6 +4603,14 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
        loadmodel->brushq3.num_lightmapmergepower = 0;
        for (power = 1;power <= mod_q3bsp_lightmapmergepower.integer && (128 << power) <= gl_max_texture_size && (1 << (power * 2)) < 4 * (count >> loadmodel->brushq3.deluxemapping);power++)
                loadmodel->brushq3.num_lightmapmergepower = power;
+
+       // as the lightmap size may actually be another power of 2, adjust for this
+       // (and interpret it as the power for 128x128 lightmaps above)
+       for(i = 0; (128 << i) < size; ++i)
+               loadmodel->brushq3.num_lightmapmergepower -= 1;
+       if(loadmodel->brushq3.num_lightmapmergepower < 0)
+               loadmodel->brushq3.num_lightmapmergepower = 0;
+
        loadmodel->brushq3.num_lightmapmerge = 1 << loadmodel->brushq3.num_lightmapmergepower;
 
        loadmodel->brushq3.num_mergedlightmaps = ((count >> loadmodel->brushq3.deluxemapping) + (1 << (loadmodel->brushq3.num_lightmapmergepower * 2)) - 1) >> (loadmodel->brushq3.num_lightmapmergepower * 2);
@@ -4485,11 +4629,11 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
        {
                // figure out which merged lightmap texture this fits into
                int lightmapindex = i >> (loadmodel->brushq3.deluxemapping + power2);
-               for (k = 0;k < 128*128;k++)
+               for (k = 0;k < size*size;k++)
                {
-                       convertedpixels[k*4+2] = in[i].rgb[k*3+0];
-                       convertedpixels[k*4+1] = in[i].rgb[k*3+1];
-                       convertedpixels[k*4+0] = in[i].rgb[k*3+2];
+                       convertedpixels[k*4+0] = inpixels[i][k*bytesperpixel+rgbmap[0]];
+                       convertedpixels[k*4+1] = inpixels[i][k*bytesperpixel+rgbmap[1]];
+                       convertedpixels[k*4+2] = inpixels[i][k*bytesperpixel+rgbmap[2]];
                        convertedpixels[k*4+3] = 255;
                }
                if (loadmodel->brushq3.num_lightmapmergepower > 0)
@@ -4498,7 +4642,7 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
                        if (!loadmodel->brushq3.data_lightmaps[lightmapindex])
                        {
                                // create a lightmap only as large as necessary to hold the
-                               // remaining 128x128 blocks
+                               // remaining size*size blocks
                                // if there are multiple merged lightmap textures then they will
                                // all be full size except the last one which may be smaller
                                // because it only needs to the remaining blocks, and it will often
@@ -4509,35 +4653,64 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
                                for (mergeheight = 1;mergewidth*mergeheight < j && mergeheight < (1 << power);mergeheight *= 2)
                                        ;
                                if (developer_loading.integer)
-                                       Con_Printf("lightmap merge texture #%i is %ix%i (%i of %i used)\n", lightmapindex, mergewidth*128, mergeheight*128, min(j, mergewidth*mergeheight), mergewidth*mergeheight);
-                               loadmodel->brushq3.data_lightmaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), mergewidth * 128, mergeheight * 128, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL);
+                                       Con_Printf("lightmap merge texture #%i is %ix%i (%i of %i used)\n", lightmapindex, mergewidth*size, mergeheight*size, min(j, mergewidth*mergeheight), mergewidth*mergeheight);
+                               loadmodel->brushq3.data_lightmaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), mergewidth * size, mergeheight * size, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL);
                                if (loadmodel->brushq3.data_deluxemaps)
-                                       loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), mergewidth * 128, mergeheight * 128, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL);
+                                       loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), mergewidth * size, mergeheight * size, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL);
                        }
-                       mergewidth = R_TextureWidth(loadmodel->brushq3.data_lightmaps[lightmapindex]) / 128;
-                       mergeheight = R_TextureHeight(loadmodel->brushq3.data_lightmaps[lightmapindex]) / 128;
+                       mergewidth = R_TextureWidth(loadmodel->brushq3.data_lightmaps[lightmapindex]) / size;
+                       mergeheight = R_TextureHeight(loadmodel->brushq3.data_lightmaps[lightmapindex]) / size;
                        j = (i >> loadmodel->brushq3.deluxemapping) & ((1 << power2) - 1);
                        if (loadmodel->brushq3.deluxemapping && (i & 1))
-                               R_UpdateTexture(loadmodel->brushq3.data_deluxemaps[lightmapindex], convertedpixels, (j % mergewidth) * 128, (j / mergewidth) * 128, 128, 128);
+                               R_UpdateTexture(loadmodel->brushq3.data_deluxemaps[lightmapindex], convertedpixels, (j % mergewidth) * size, (j / mergewidth) * size, size, size);
                        else
-                               R_UpdateTexture(loadmodel->brushq3.data_lightmaps [lightmapindex], convertedpixels, (j % mergewidth) * 128, (j / mergewidth) * 128, 128, 128);
+                               R_UpdateTexture(loadmodel->brushq3.data_lightmaps [lightmapindex], convertedpixels, (j % mergewidth) * size, (j / mergewidth) * size, size, size);
                }
                else
                {
                        // figure out which merged lightmap texture this fits into
                        if (loadmodel->brushq3.deluxemapping && (i & 1))
-                               loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), 128, 128, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL);
+                               loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), size, size, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL);
                        else
-                               loadmodel->brushq3.data_lightmaps [lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), 128, 128, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL);
+                               loadmodel->brushq3.data_lightmaps [lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), size, size, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL);
                }
        }
+
+       Mem_Free(convertedpixels);
+       if(external)
+       {
+               for(i = 0; i < count; ++i)
+                       Mem_Free(inpixels[i]);
+       }
+}
+
+typedef struct patchtess_s
+{
+       qboolean grouped;
+       int surface_id;
+       int xtess, ytess;
+       int xsize, ysize;
+       int cxtess, cytess;
+       int cxsize, cysize;
+       float lodgroup[6];
 }
+patchtess_t;
+
+#define PATCHTESS_SAME_LODGROUP(a,b) \
+       ( \
+               (a).lodgroup[0] == (b).lodgroup[0] && \
+               (a).lodgroup[1] == (b).lodgroup[1] && \
+               (a).lodgroup[2] == (b).lodgroup[2] && \
+               (a).lodgroup[3] == (b).lodgroup[3] && \
+               (a).lodgroup[4] == (b).lodgroup[4] && \
+               (a).lodgroup[5] == (b).lodgroup[5] \
+       )
 
 static void Mod_Q3BSP_LoadFaces(lump_t *l)
 {
        q3dface_t *in, *oldin;
        msurface_t *out, *oldout;
-       int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, numvertices, numtriangles;
+       int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, numvertices, numtriangles, groupsize, cxtess, cytess;
        float lightmaptcbase[2], lightmaptcscale[2];
        //int *originalelement3i;
        //int *originalneighbor3i;
@@ -4549,6 +4722,8 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
        float *originaltexcoordtexture2f;
        float *originaltexcoordlightmap2f;
        float *v;
+       patchtess_t *patchtess = NULL;
+       int patchtesscount = 0;
 
        in = (q3dface_t *)(mod_base + l->fileofs);
        if (l->filelen % sizeof(*in))
@@ -4559,6 +4734,9 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
        loadmodel->data_surfaces = out;
        loadmodel->num_surfaces = count;
 
+       if(count > 0)
+               patchtess = Mem_Alloc(tempmempool, count * sizeof(*patchtess));
+
        i = 0;
        oldi = i;
        oldin = in;
@@ -4569,7 +4747,7 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
        {
                // check face type first
                type = LittleLong(in->type);
-               if (type != Q3FACETYPE_POLYGON
+               if (type != Q3FACETYPE_FLAT
                 && type != Q3FACETYPE_PATCH
                 && type != Q3FACETYPE_MESH
                 && type != Q3FACETYPE_FLARE)
@@ -4606,7 +4784,8 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                                n = -1;
                        else if (n >= loadmodel->brushq3.num_originallightmaps)
                        {
-                               Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_originallightmaps);
+                               if(loadmodel->brushq3.num_originallightmaps != 0)
+                                       Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_originallightmaps);
                                n = -1;
                        }
                        else
@@ -4638,7 +4817,7 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                }
                switch(type)
                {
-               case Q3FACETYPE_POLYGON:
+               case Q3FACETYPE_FLAT:
                case Q3FACETYPE_MESH:
                        // no processing necessary
                        break;
@@ -4651,6 +4830,7 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                                continue;
                        }
                        originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
+
                        // convert patch to Q3FACETYPE_MESH
                        xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
                        ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
@@ -4660,18 +4840,35 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                        // bound to sanity settings
                        xtess = bound(1, xtess, 1024);
                        ytess = bound(1, ytess, 1024);
-                       // bound to user limit on vertices
-                       while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
-                       {
-                               if (xtess > ytess)
-                                       xtess--;
-                               else
-                                       ytess--;
-                       }
-                       finalwidth = ((patchsize[0] - 1) * xtess) + 1;
-                       finalheight = ((patchsize[1] - 1) * ytess) + 1;
-                       numvertices = finalwidth * finalheight;
-                       numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
+
+                       // lower quality collision patches! Same procedure as before, but different cvars
+                       // convert patch to Q3FACETYPE_MESH
+                       cxtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
+                       cytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
+                       // bound to user settings
+                       cxtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
+                       cytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
+                       // bound to sanity settings
+                       cxtess = bound(1, xtess, 1024);
+                       cytess = bound(1, ytess, 1024);
+
+                       // store it for the LOD grouping step
+                       patchtess[patchtesscount].surface_id = i;
+                       patchtess[patchtesscount].grouped = false;
+                       patchtess[patchtesscount].xtess = xtess;
+                       patchtess[patchtesscount].ytess = ytess;
+                       patchtess[patchtesscount].xsize = patchsize[0];
+                       patchtess[patchtesscount].ysize = patchsize[1];
+                       patchtess[patchtesscount].lodgroup[0] = in->specific.patch.mins[0];
+                       patchtess[patchtesscount].lodgroup[1] = in->specific.patch.mins[1];
+                       patchtess[patchtesscount].lodgroup[2] = in->specific.patch.mins[2];
+                       patchtess[patchtesscount].lodgroup[3] = in->specific.patch.maxs[0];
+                       patchtess[patchtesscount].lodgroup[4] = in->specific.patch.maxs[1];
+                       patchtess[patchtesscount].lodgroup[5] = in->specific.patch.maxs[2];
+
+                       patchtess[patchtesscount].cxtess = xtess;
+                       patchtess[patchtesscount].cytess = ytess;
+                       ++patchtesscount;
                        break;
                case Q3FACETYPE_FLARE:
                        if (developer.integer >= 100)
@@ -4685,6 +4882,131 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                meshtriangles += out->num_triangles;
        }
 
+       for(i = 0; i < patchtesscount; ++i)
+       {
+               if(patchtess[i].grouped) // already grouped
+                       continue;
+
+               // get the highest required tess parameters for this group
+               groupsize = 0;
+               xtess = ytess = 0;
+               cxtess = cytess = 0;
+               for(j = 0; j < patchtesscount; ++j)
+               {
+                       if(patchtess[j].grouped) // already grouped
+                               continue;
+                       if(!PATCHTESS_SAME_LODGROUP(patchtess[i], patchtess[j]))
+                               continue;
+                       if(patchtess[j].xtess > xtess)
+                               xtess = patchtess[j].xtess;
+                       if(patchtess[j].ytess > ytess)
+                               ytess = patchtess[j].ytess;
+                       if(patchtess[j].cxtess > cxtess)
+                               cxtess = patchtess[j].cxtess;
+                       if(patchtess[j].cytess > cytess)
+                               cytess = patchtess[j].cytess;
+                       ++groupsize;
+               }
+
+               if(groupsize == 0)
+               {
+                       Con_Printf("ERROR: patch %d isn't in any LOD group (1)?!?\n", patchtess[i].surface_id);
+                       continue;
+               }
+
+               // bound to user limit on vertices
+               for(;;)
+               {
+                       numvertices = 0;
+                       numtriangles = 0;
+
+                       for(j = 0; j < patchtesscount; ++j)
+                       {
+                               if(patchtess[j].grouped) // already grouped
+                                       continue;
+                               if(!PATCHTESS_SAME_LODGROUP(patchtess[i], patchtess[j]))
+                                       continue;
+
+                               finalwidth = (patchtess[j].xsize - 1) * xtess + 1;
+                               finalheight = (patchtess[j].ysize - 1) * ytess + 1;
+                               numvertices += finalwidth * finalheight;
+                               numtriangles += (finalwidth - 1) * (finalheight - 1) * 2;
+                       }
+
+                       if(xtess <= 1 && ytess <= 1)
+                               break;
+
+                       if(numvertices > min(r_subdivisions_maxvertices.integer, 262144) * groupsize)
+                       {
+                               if (xtess > ytess)
+                                       xtess--;
+                               else
+                                       ytess--;
+                               continue; // try again
+                       }
+
+                       break;
+               }
+
+               // bound to user limit on vertices (collision)
+               for(;;)
+               {
+                       numvertices = 0;
+                       numtriangles = 0;
+
+                       for(j = 0; j < patchtesscount; ++j)
+                       {
+                               if(patchtess[j].grouped) // already grouped
+                                       continue;
+                               if(!PATCHTESS_SAME_LODGROUP(patchtess[i], patchtess[j]))
+                                       continue;
+
+                               finalwidth = (patchtess[j].xsize - 1) * cxtess + 1;
+                               finalheight = (patchtess[j].ysize - 1) * cytess + 1;
+                               numvertices += finalwidth * finalheight;
+                               numtriangles += (finalwidth - 1) * (finalheight - 1) * 2;
+                       }
+
+                       if(cxtess <= 1 && cytess <= 1)
+                               break;
+
+                       if(numvertices > min(r_subdivisions_collision_maxvertices.integer, 262144) * groupsize)
+                       {
+                               if (cxtess > cytess)
+                                       cxtess--;
+                               else
+                                       cytess--;
+                               continue; // try again
+                       }
+
+                       break;
+               }
+
+               for(j = 0; j < patchtesscount; ++j)
+               {
+                       if(patchtess[j].grouped) // already grouped
+                               continue;
+                       if(!PATCHTESS_SAME_LODGROUP(patchtess[i], patchtess[j]))
+                               continue;
+
+                       finalwidth = (patchtess[j].xsize - 1) * xtess + 1;
+                       finalheight = (patchtess[j].ysize - 1) * ytess + 1;
+                       numvertices = finalwidth * finalheight;
+                       numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
+
+                       oldout[patchtess[j].surface_id].num_vertices = numvertices;
+                       oldout[patchtess[j].surface_id].num_triangles = numtriangles;
+                       meshvertices += oldout[patchtess[j].surface_id].num_vertices;
+                       meshtriangles += oldout[patchtess[j].surface_id].num_triangles;
+
+                       patchtess[j].grouped = true;
+                       patchtess[j].xtess = xtess;
+                       patchtess[j].ytess = ytess;
+                       patchtess[j].cxtess = cxtess;
+                       patchtess[j].cytess = cytess;
+               }
+       }
+
        i = oldi;
        in = oldin;
        out = oldout;
@@ -4703,7 +5025,7 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                out->num_firsttriangle = meshtriangles;
                switch(type)
                {
-               case Q3FACETYPE_POLYGON:
+               case Q3FACETYPE_FLAT:
                case Q3FACETYPE_MESH:
                        // no processing necessary, except for lightmap merging
                        for (j = 0;j < out->num_vertices;j++)
@@ -4734,23 +5056,23 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                        originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
                        originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
                        originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
-                       // convert patch to Q3FACETYPE_MESH
-                       xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
-                       ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
-                       // bound to user settings
-                       xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
-                       ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
-                       // bound to sanity settings
-                       xtess = bound(1, xtess, 1024);
-                       ytess = bound(1, ytess, 1024);
-                       // bound to user limit on vertices
-                       while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
+
+                       xtess = ytess = cxtess = cytess = 0;
+                       for(j = 0; j < patchtesscount; ++j)
+                               if(patchtess[j].grouped && patchtess[j].surface_id == i)
+                               {
+                                       xtess = patchtess[j].xtess;
+                                       ytess = patchtess[j].ytess;
+                                       cxtess = patchtess[j].cxtess;
+                                       cytess = patchtess[j].cytess;
+                                       break;
+                               }
+                       if(xtess == 0)
                        {
-                               if (xtess > ytess)
-                                       xtess--;
-                               else
-                                       ytess--;
+                               Con_Printf("ERROR: patch %d isn't in any LOD group (2)?!?\n", i);
+                               xtess = ytess = cxtess = cytess = 1;
                        }
+
                        finalwidth = ((patchsize[0] - 1) * xtess) + 1;
                        finalheight = ((patchsize[1] - 1) * ytess) + 1;
                        finalvertices = finalwidth * finalheight;
@@ -4774,24 +5096,8 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                        }
                        // q3map does not put in collision brushes for curves... ugh
                        // build the lower quality collision geometry
-                       xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
-                       ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
-                       // bound to user settings
-                       xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
-                       ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
-                       // bound to sanity settings
-                       xtess = bound(1, xtess, 1024);
-                       ytess = bound(1, ytess, 1024);
-                       // bound to user limit on vertices
-                       while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
-                       {
-                               if (xtess > ytess)
-                                       xtess--;
-                               else
-                                       ytess--;
-                       }
-                       finalwidth = ((patchsize[0] - 1) * xtess) + 1;
-                       finalheight = ((patchsize[1] - 1) * ytess) + 1;
+                       finalwidth = ((patchsize[0] - 1) * cxtess) + 1;
+                       finalheight = ((patchsize[1] - 1) * cytess) + 1;
                        finalvertices = finalwidth * finalheight;
                        finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
 
@@ -4799,7 +5105,7 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                        out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
                        out->num_collisionvertices = finalvertices;
                        out->num_collisiontriangles = finaltriangles;
-                       Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
+                       Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, cxtess, cytess);
                        Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
 
                        //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
@@ -4839,8 +5145,8 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
                        {
                                // figure out which part of the merged lightmap this fits into
                                int lightmapindex = LittleLong(in->lightmapindex) >> loadmodel->brushq3.deluxemapping;
-                               int mergewidth = R_TextureWidth(out->lightmaptexture) / 128;
-                               int mergeheight = R_TextureHeight(out->lightmaptexture) / 128;
+                               int mergewidth = R_TextureWidth(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
+                               int mergeheight = R_TextureHeight(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
                                lightmapindex &= mergewidth * mergeheight - 1;
                                lightmaptcscale[0] = 1.0f / mergewidth;
                                lightmaptcscale[1] = 1.0f / mergeheight;
@@ -4881,6 +5187,11 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
        // for per pixel lighting
        Mod_BuildTextureVectorsFromNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
 
+       // generate ushort elements array if possible
+       if (loadmodel->surfmesh.data_element3s)
+               for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
+                       loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
+
        // free the no longer needed vertex data
        loadmodel->brushq3.num_vertices = 0;
        if (loadmodel->brushq3.data_vertex3f)
@@ -4895,6 +5206,9 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l)
        if (loadmodel->brushq3.data_element3i)
                Mem_Free(loadmodel->brushq3.data_element3i);
        loadmodel->brushq3.data_element3i = NULL;
+
+       if(patchtess)
+               Mem_Free(patchtess);
 }
 
 static void Mod_Q3BSP_LoadModels(lump_t *l)
@@ -5153,7 +5467,7 @@ static void Mod_Q3BSP_LoadPVS(lump_t *l)
        memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
 }
 
-static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
+static void Mod_Q3BSP_LightPoint(dp_model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
 {
        int i, j, k, index[3];
        float transformed[3], blend1, blend2, blend, stylescale;
@@ -5218,7 +5532,7 @@ static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientc
        //Con_Printf("result: ambient %f %f %f diffuse %f %f %f diffusenormal %f %f %f\n", ambientcolor[0], ambientcolor[1], ambientcolor[2], diffusecolor[0], diffusecolor[1], diffusecolor[2], diffusenormal[0], diffusenormal[1], diffusenormal[2]);
 }
 
-static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
+static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, dp_model_t *model, mnode_t *node, const vec3_t point, int markframe)
 {
        int i;
        mleaf_t *leaf;
@@ -5240,7 +5554,7 @@ static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model
        // can't do point traces on curves (they have no thickness)
 }
 
-static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t start, const vec3_t end, vec_t startfrac, vec_t endfrac, const vec3_t linestart, const vec3_t lineend, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
+static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, dp_model_t *model, mnode_t *node, const vec3_t start, const vec3_t end, vec_t startfrac, vec_t endfrac, const vec3_t linestart, const vec3_t lineend, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
 {
        int i, startside, endside;
        float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
@@ -5327,7 +5641,7 @@ static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, model_t *model,
        }
 }
 
-static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
+static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, dp_model_t *model, mnode_t *node, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
 {
        int i;
        int sides;
@@ -5408,7 +5722,7 @@ static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, model_t *model
        }
 }
 
-static void Mod_Q3BSP_TraceBox(model_t *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
+static void Mod_Q3BSP_TraceBox(dp_model_t *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
 {
        int i;
        float segmentmins[3], segmentmaxs[3];
@@ -5520,7 +5834,7 @@ static int Mod_Q3BSP_PointSuperContents(struct model_s *model, int frame, const
        return supercontents;
 }
 
-static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
+static int Mod_Q3BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents)
 {
        int supercontents = 0;
        if (nativecontents & CONTENTSQ3_SOLID)
@@ -5546,7 +5860,7 @@ static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativec
        return supercontents;
 }
 
-static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
+static int Mod_Q3BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents)
 {
        int nativecontents = 0;
        if (supercontents & SUPERCONTENTS_SOLID)
@@ -5585,9 +5899,9 @@ void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
                loadmodel->brush.num_leafs = numleafs;
 }
 
-void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
+void Mod_Q3BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 {
-       int i, j, numshadowmeshtriangles;
+       int i, j, numshadowmeshtriangles, lumps;
        q3dheader_t *header;
        float corner[3], yawradius, modelradius;
        msurface_t *surface;
@@ -5599,9 +5913,11 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
        mod->numskins = 1;
 
        header = (q3dheader_t *)buffer;
+       if((char *) bufferend < (char *) buffer + sizeof(q3dheader_t))
+               Host_Error("Mod_Q3BSP_Load: %s is smaller than its header", mod->name);
 
        i = LittleLong(header->version);
-       if (i != Q3BSPVERSION)
+       if (i != Q3BSPVERSION && i != Q3BSPVERSION_IG && i != Q3BSPVERSION_LIVE)
                Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
        mod->brush.ishlbsp = false;
        if (loadmodel->isworldmodel)
@@ -5636,15 +5952,32 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
        // swap all the lumps
        header->ident = LittleLong(header->ident);
        header->version = LittleLong(header->version);
-       for (i = 0;i < Q3HEADER_LUMPS;i++)
+       lumps = (header->version == Q3BSPVERSION_LIVE) ? Q3HEADER_LUMPS_LIVE : Q3HEADER_LUMPS;
+       for (i = 0;i < lumps;i++)
        {
-               header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
-               header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
+               j = (header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs));
+               if((char *) bufferend < (char *) buffer + j)
+                       Host_Error("Mod_Q3BSP_Load: %s has a lump that starts outside the file!", mod->name);
+               j += (header->lumps[i].filelen = LittleLong(header->lumps[i].filelen));
+               if((char *) bufferend < (char *) buffer + j)
+                       Host_Error("Mod_Q3BSP_Load: %s has a lump that ends outside the file!", mod->name);
+       }
+       /*
+        * NO, do NOT clear them!
+        * they contain actual data referenced by other stuff.
+        * Instead, before using the advertisements lump, check header->versio
+        * again!
+        * Sorry, but otherwise it breaks memory of the first lump.
+       for (i = lumps;i < Q3HEADER_LUMPS_MAX;i++)
+       {
+               header->lumps[i].fileofs = 0;
+               header->lumps[i].filelen = 0;
        }
+       */
 
        mod->brush.qw_md4sum = 0;
        mod->brush.qw_md4sum2 = 0;
-       for (i = 0;i < Q3HEADER_LUMPS;i++)
+       for (i = 0;i < lumps;i++)
        {
                if (i == Q3LUMP_ENTITIES)
                        continue;
@@ -5657,7 +5990,10 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
        Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
        Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
        Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
-       Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
+       if (header->version == Q3BSPVERSION_IG)
+               Mod_Q3BSP_LoadBrushSides_IG(&header->lumps[Q3LUMP_BRUSHSIDES]);
+       else
+               Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
        Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
        Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
        Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
@@ -5681,17 +6017,20 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
 
        // make a single combined shadow mesh to allow optimized shadow volume creation
        numshadowmeshtriangles = 0;
-       for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
+       if (cls.state != ca_dedicated)
        {
-               surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
-               numshadowmeshtriangles += surface->num_triangles;
+               for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
+               {
+                       surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
+                       numshadowmeshtriangles += surface->num_triangles;
+               }
+               loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
+               for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
+                       if (surface->num_triangles > 0)
+                               Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, loadmodel->surfmesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
+               loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true, false);
+               Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
        }
-       loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
-       for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
-               if (surface->num_triangles > 0)
-                       Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, loadmodel->surfmesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
-       loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true, false);
-       Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
 
        loadmodel->brush.num_leafs = 0;
        Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
@@ -5699,7 +6038,6 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
        mod = loadmodel;
        for (i = 0;i < loadmodel->brush.numsubmodels;i++)
        {
-               qboolean boxready;
                if (i > 0)
                {
                        char name[10];
@@ -5709,7 +6047,7 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
                        if (!loadmodel->isworldmodel)
                                continue;
                        // duplicate the basic information
-                       sprintf(name, "*%i", i);
+                       dpsnprintf(name, sizeof(name), "*%i", i);
                        mod = Mod_FindName(name);
                        *mod = *loadmodel;
                        strlcpy(mod->name, name, sizeof(mod->name));
@@ -5743,7 +6081,8 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
                // because q3map2 sometimes lies (mostly to affect the lightgrid),
                // which can in turn mess up the farclip (as well as culling when
                // outside the level - an unimportant concern)
-               boxready = false;
+
+               //printf("Editing model %d... BEFORE re-bounding: %f %f %f - %f %f %f\n", i, mod->normalmins[0], mod->normalmins[1], mod->normalmins[2], mod->normalmaxs[0], mod->normalmaxs[1], mod->normalmaxs[2]);
                for (j = 0;j < mod->nummodelsurfaces;j++)
                {
                        const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
@@ -5751,21 +6090,17 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
                        int k;
                        if (!surface->num_vertices)
                                continue;
-                       if (!boxready)
-                       {
-                               VectorCopy(v, mod->normalmins);
-                               VectorCopy(v, mod->normalmaxs);
-                       }
                        for (k = 0;k < surface->num_vertices;k++, v += 3)
                        {
                                mod->normalmins[0] = min(mod->normalmins[0], v[0]);
                                mod->normalmins[1] = min(mod->normalmins[1], v[1]);
                                mod->normalmins[2] = min(mod->normalmins[2], v[2]);
-                               mod->normalmaxs[0] = min(mod->normalmaxs[0], v[0]);
-                               mod->normalmaxs[1] = min(mod->normalmaxs[1], v[1]);
-                               mod->normalmaxs[2] = min(mod->normalmaxs[2], v[2]);
+                               mod->normalmaxs[0] = max(mod->normalmaxs[0], v[0]);
+                               mod->normalmaxs[1] = max(mod->normalmaxs[1], v[1]);
+                               mod->normalmaxs[2] = max(mod->normalmaxs[2], v[2]);
                        }
                }
+               //printf("Editing model %d... AFTER re-bounding: %f %f %f - %f %f %f\n", i, mod->normalmins[0], mod->normalmins[1], mod->normalmins[2], mod->normalmaxs[0], mod->normalmaxs[1], mod->normalmaxs[2]);
                corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
                corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
                corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
@@ -5798,10 +6133,10 @@ void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
        }
 }
 
-void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
+void Mod_IBSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 {
        int i = LittleLong(((int *)buffer)[1]);
-       if (i == Q3BSPVERSION)
+       if (i == Q3BSPVERSION || i == Q3BSPVERSION_IG || i == Q3BSPVERSION_LIVE)
                Mod_Q3BSP_Load(mod,buffer, bufferend);
        else if (i == Q2BSPVERSION)
                Mod_Q2BSP_Load(mod,buffer, bufferend);
@@ -5809,12 +6144,12 @@ void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
                Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
 }
 
-void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
+void Mod_MAP_Load(dp_model_t *mod, void *buffer, void *bufferend)
 {
        Host_Error("Mod_MAP_Load: not yet implemented");
 }
 
-qboolean Mod_CanSeeBox_Trace(int numsamples, float t, model_t *model, vec3_t eye, vec3_t minsX, vec3_t maxsX)
+qboolean Mod_CanSeeBox_Trace(int numsamples, float t, dp_model_t *model, vec3_t eye, vec3_t minsX, vec3_t maxsX)
 {
        // we already have done PVS culling at this point...
        // so we don't need to do it again.