]> git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - model_alias.c
cvar: Rename Cvar_RegisterAlias to Cvar_RegisterVirtual
[xonotic/darkplaces.git] / model_alias.c
index 9fdc08006cbe592df393145128c9a686374ff162..11ac0d2830e1a0f3d556d1954824c4baaba4f530 100644 (file)
@@ -27,17 +27,17 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #endif
 
 #ifdef SSE_POSSIBLE
-static qboolean r_skeletal_use_sse_defined = false;
-cvar_t r_skeletal_use_sse = {0, "r_skeletal_use_sse", "1", "use SSE for skeletal model animation"};
+static qbool r_skeletal_use_sse_defined = false;
+cvar_t r_skeletal_use_sse = {CF_CLIENT, "r_skeletal_use_sse", "1", "use SSE for skeletal model animation"};
 #endif
-cvar_t r_skeletal_debugbone = {0, "r_skeletal_debugbone", "-1", "development cvar for testing skeletal model code"};
-cvar_t r_skeletal_debugbonecomponent = {0, "r_skeletal_debugbonecomponent", "3", "development cvar for testing skeletal model code"};
-cvar_t r_skeletal_debugbonevalue = {0, "r_skeletal_debugbonevalue", "100", "development cvar for testing skeletal model code"};
-cvar_t r_skeletal_debugtranslatex = {0, "r_skeletal_debugtranslatex", "1", "development cvar for testing skeletal model code"};
-cvar_t r_skeletal_debugtranslatey = {0, "r_skeletal_debugtranslatey", "1", "development cvar for testing skeletal model code"};
-cvar_t r_skeletal_debugtranslatez = {0, "r_skeletal_debugtranslatez", "1", "development cvar for testing skeletal model code"};
-cvar_t mod_alias_supporttagscale = {0, "mod_alias_supporttagscale", "1", "support scaling factors in bone/tag attachment matrices as supported by MD3"};
-cvar_t mod_alias_force_animated = {0, "mod_alias_force_animated", "", "if set to an non-empty string, overrides the is-animated flag of any alias models (for benchmarking)"};
+cvar_t r_skeletal_debugbone = {CF_CLIENT, "r_skeletal_debugbone", "-1", "development cvar for testing skeletal model code"};
+cvar_t r_skeletal_debugbonecomponent = {CF_CLIENT, "r_skeletal_debugbonecomponent", "3", "development cvar for testing skeletal model code"};
+cvar_t r_skeletal_debugbonevalue = {CF_CLIENT, "r_skeletal_debugbonevalue", "100", "development cvar for testing skeletal model code"};
+cvar_t r_skeletal_debugtranslatex = {CF_CLIENT, "r_skeletal_debugtranslatex", "1", "development cvar for testing skeletal model code"};
+cvar_t r_skeletal_debugtranslatey = {CF_CLIENT, "r_skeletal_debugtranslatey", "1", "development cvar for testing skeletal model code"};
+cvar_t r_skeletal_debugtranslatez = {CF_CLIENT, "r_skeletal_debugtranslatez", "1", "development cvar for testing skeletal model code"};
+cvar_t mod_alias_supporttagscale = {CF_CLIENT | CF_SERVER, "mod_alias_supporttagscale", "1", "support scaling factors in bone/tag attachment matrices as supported by MD3"};
+cvar_t mod_alias_force_animated = {CF_CLIENT | CF_SERVER, "mod_alias_force_animated", "", "if set to an non-empty string, overrides the is-animated flag of any alias models (for benchmarking)"};
 
 float mod_md3_sin[320];
 
@@ -62,7 +62,7 @@ void *Mod_Skeletal_AnimateVertices_AllocBuffers(size_t nbytes)
        return Mod_Skeletal_AnimateVertices_bonepose;
 }
 
-void Mod_Skeletal_BuildTransforms(const dp_model_t * RESTRICT model, const frameblend_t * RESTRICT frameblend, const skeleton_t *skeleton, float * RESTRICT bonepose, float * RESTRICT boneposerelative)
+void Mod_Skeletal_BuildTransforms(const model_t * RESTRICT model, const frameblend_t * RESTRICT frameblend, const skeleton_t *skeleton, float * RESTRICT bonepose, float * RESTRICT boneposerelative)
 {
        int i, blends;
        float m[12];
@@ -160,7 +160,7 @@ void Mod_Skeletal_BuildTransforms(const dp_model_t * RESTRICT model, const frame
        }
 }
 
-static void Mod_Skeletal_AnimateVertices(const dp_model_t * RESTRICT model, const frameblend_t * RESTRICT frameblend, const skeleton_t *skeleton, float * RESTRICT vertex3f, float * RESTRICT normal3f, float * RESTRICT svector3f, float * RESTRICT tvector3f)
+static void Mod_Skeletal_AnimateVertices(const model_t * RESTRICT model, const frameblend_t * RESTRICT frameblend, const skeleton_t *skeleton, float * RESTRICT vertex3f, float * RESTRICT normal3f, float * RESTRICT svector3f, float * RESTRICT tvector3f)
 {
 
        if (!model->surfmesh.num_vertices)
@@ -213,7 +213,7 @@ void Mod_AliasInit (void)
 #endif
 }
 
-static int Mod_Skeletal_AddBlend(dp_model_t *model, const blendweights_t *newweights)
+static int Mod_Skeletal_AddBlend(model_t *model, const blendweights_t *newweights)
 {
        int i;
        blendweights_t *weights;
@@ -230,7 +230,7 @@ static int Mod_Skeletal_AddBlend(dp_model_t *model, const blendweights_t *newwei
        return model->num_bones + i;
 }
 
-static int Mod_Skeletal_CompressBlend(dp_model_t *model, const int *newindex, const float *newinfluence)
+static int Mod_Skeletal_CompressBlend(model_t *model, const int *newindex, const float *newinfluence)
 {
        int i, total;
        float scale;
@@ -273,7 +273,7 @@ static int Mod_Skeletal_CompressBlend(dp_model_t *model, const int *newindex, co
        return Mod_Skeletal_AddBlend(model, &newweights);
 }
 
-static void Mod_MD3_AnimateVertices(const dp_model_t * RESTRICT model, const frameblend_t * RESTRICT frameblend, const skeleton_t *skeleton, float * RESTRICT vertex3f, float * RESTRICT normal3f, float * RESTRICT svector3f, float * RESTRICT tvector3f)
+static void Mod_MD3_AnimateVertices(const model_t * RESTRICT model, const frameblend_t * RESTRICT frameblend, const skeleton_t *skeleton, float * RESTRICT vertex3f, float * RESTRICT normal3f, float * RESTRICT svector3f, float * RESTRICT tvector3f)
 {
        // vertex morph
        int i, numblends, blendnum;
@@ -361,7 +361,7 @@ static void Mod_MD3_AnimateVertices(const dp_model_t * RESTRICT model, const fra
                }
        }
 }
-static void Mod_MDL_AnimateVertices(const dp_model_t * RESTRICT model, const frameblend_t * RESTRICT frameblend, const skeleton_t *skeleton, float * RESTRICT vertex3f, float * RESTRICT normal3f, float * RESTRICT svector3f, float * RESTRICT tvector3f)
+static void Mod_MDL_AnimateVertices(const model_t * RESTRICT model, const frameblend_t * RESTRICT frameblend, const skeleton_t *skeleton, float * RESTRICT vertex3f, float * RESTRICT normal3f, float * RESTRICT svector3f, float * RESTRICT tvector3f)
 {
        // vertex morph
        int i, numblends, blendnum;
@@ -458,7 +458,7 @@ static void Mod_MDL_AnimateVertices(const dp_model_t * RESTRICT model, const fra
        }
 }
 
-int Mod_Alias_GetTagMatrix(const dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, int tagindex, matrix4x4_t *outmatrix)
+int Mod_Alias_GetTagMatrix(const model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, int tagindex, matrix4x4_t *outmatrix)
 {
        matrix4x4_t temp;
        matrix4x4_t parentbonematrix;
@@ -525,7 +525,7 @@ int Mod_Alias_GetTagMatrix(const dp_model_t *model, const frameblend_t *frameble
        return 0;
 }
 
-int Mod_Alias_GetExtendedTagInfoForIndex(const dp_model_t *model, unsigned int skin, const frameblend_t *frameblend, const skeleton_t *skeleton, int tagindex, int *parentindex, const char **tagname, matrix4x4_t *tag_localmatrix)
+int Mod_Alias_GetExtendedTagInfoForIndex(const model_t *model, unsigned int skin, const frameblend_t *frameblend, const skeleton_t *skeleton, int tagindex, int *parentindex, const char **tagname, matrix4x4_t *tag_localmatrix)
 {
        int blendindex;
        int k;
@@ -582,7 +582,7 @@ int Mod_Alias_GetExtendedTagInfoForIndex(const dp_model_t *model, unsigned int s
        return 2;
 }
 
-int Mod_Alias_GetTagIndexForName(const dp_model_t *model, unsigned int skin, const char *tagname)
+int Mod_Alias_GetTagIndexForName(const model_t *model, unsigned int skin, const char *tagname)
 {
        int i;
        if(skin >= (unsigned int)model->numskins)
@@ -623,13 +623,13 @@ static void Mod_BuildBaseBonePoses(void)
        Mem_Free(basebonepose);
 }
 
-static qboolean Mod_Alias_CalculateBoundingBox(void)
+static qbool Mod_Alias_CalculateBoundingBox(void)
 {
        int vnum;
-       qboolean firstvertex = true;
+       qbool firstvertex = true;
        float dist, yawradius, radius;
        float *v;
-       qboolean isanimated = false;
+       qbool isanimated = false;
        VectorClear(loadmodel->normalmins);
        VectorClear(loadmodel->normalmaxs);
        yawradius = 0;
@@ -752,7 +752,7 @@ static void Mod_Alias_MorphMesh_CompileFrames(void)
        }
 }
 
-static void Mod_MDLMD2MD3_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)
+static void Mod_MDLMD2MD3_TraceLine(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];
@@ -786,12 +786,12 @@ static void Mod_MDLMD2MD3_TraceLine(dp_model_t *model, const frameblend_t *frame
        else
                vertex3f = model->surfmesh.data_vertex3f;
        for (i = 0, surface = model->data_surfaces;i < model->num_surfaces;i++, surface++)
-               Collision_TraceLineTriangleMeshFloat(trace, start, end, model->surfmesh.num_triangles, model->surfmesh.data_element3i, vertex3f, 0, NULL, SUPERCONTENTS_SOLID | (surface->texture->basematerialflags & MATERIALFLAGMASK_TRANSLUCENT ? 0 : SUPERCONTENTS_OPAQUE), 0, surface->texture, segmentmins, segmentmaxs);
+               Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_triangles, model->surfmesh.data_element3i + 3 * surface->num_firsttriangle, vertex3f, 0, NULL, SUPERCONTENTS_SOLID | (surface->texture->basematerialflags & MATERIALFLAGMASK_TRANSLUCENT ? 0 : SUPERCONTENTS_OPAQUE), 0, surface->texture, segmentmins, segmentmaxs);
        if (freevertex3f)
                Mem_Free(freevertex3f);
 }
 
-static void Mod_MDLMD2MD3_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)
+static void Mod_MDLMD2MD3_TraceBox(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)
 {
        int i;
        vec3_t shiftstart, shiftend;
@@ -840,7 +840,7 @@ static void Mod_MDLMD2MD3_TraceBox(dp_model_t *model, const frameblend_t *frameb
        Collision_BrushForBox(&thisbrush_end, boxendmins, boxendmaxs, 0, 0, NULL);
        model->AnimateVertices(model, frameblend, skeleton, vertex3f, NULL, NULL, NULL);
        for (i = 0, surface = model->data_surfaces;i < model->num_surfaces;i++, surface++)
-               Collision_TraceBrushTriangleMeshFloat(trace, &thisbrush_start.brush, &thisbrush_end.brush, model->surfmesh.num_triangles, model->surfmesh.data_element3i, vertex3f, 0, NULL, SUPERCONTENTS_SOLID | (surface->texture->basematerialflags & MATERIALFLAGMASK_TRANSLUCENT ? 0 : SUPERCONTENTS_OPAQUE), 0, surface->texture, segmentmins, segmentmaxs);
+               Collision_TraceBrushTriangleMeshFloat(trace, &thisbrush_start.brush, &thisbrush_end.brush, surface->num_triangles, model->surfmesh.data_element3i + 3 * surface->num_firsttriangle, vertex3f, 0, NULL, SUPERCONTENTS_SOLID | (surface->texture->basematerialflags & MATERIALFLAGMASK_TRANSLUCENT ? 0 : SUPERCONTENTS_OPAQUE), 0, surface->texture, segmentmins, segmentmaxs);
        if (vertex3f != vertex3fbuf)
                Mem_Free(vertex3f);
 }
@@ -944,7 +944,7 @@ void Mod_BuildAliasSkinsFromSkinFiles(texture_t *skin, skinfile_t *skinfile, con
                                        Image_StripImageExtension(skinfileitem->replacement, stripbuf, sizeof(stripbuf));
                                        if(developer_extra.integer)
                                                Con_DPrintf("--> got %s from skin file\n", stripbuf);
-                                       Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, skin, stripbuf, true, true, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP | TEXF_COMPRESS);
+                                       Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, skin, stripbuf, true, true, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL);
                                        break;
                                }
                        }
@@ -963,13 +963,13 @@ void Mod_BuildAliasSkinsFromSkinFiles(texture_t *skin, skinfile_t *skinfile, con
                if(developer_extra.integer)
                        Con_DPrintf("--> using default\n");
                Image_StripImageExtension(shadername, stripbuf, sizeof(stripbuf));
-               Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, skin, stripbuf, true, true, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP | TEXF_COMPRESS);
+               Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, skin, stripbuf, true, true, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL);
        }
 }
-
+extern cvar_t r_nolerp_list;
 #define BOUNDI(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%d exceeds %d - %d)", loadmodel->name, VALUE, MIN, MAX);
 #define BOUNDF(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%f exceeds %f - %f)", loadmodel->name, VALUE, MIN, MAX);
-void Mod_IDP0_Load(dp_model_t *mod, void *buffer, void *bufferend)
+void Mod_IDP0_Load(model_t *mod, void *buffer, void *bufferend)
 {
        int i, j, version, totalskins, skinwidth, skinheight, groupframes, groupskins, numverts;
        float scales, scalet, interval;
@@ -1004,17 +1004,13 @@ void Mod_IDP0_Load(dp_model_t *mod, void *buffer, void *bufferend)
        loadmodel->modeldatatypestring = "MDL";
 
        loadmodel->type = mod_alias;
-       loadmodel->DrawSky = NULL;
-       loadmodel->DrawAddWaterPlanes = NULL;
-       loadmodel->Draw = R_Q1BSP_Draw;
-       loadmodel->DrawDepth = R_Q1BSP_DrawDepth;
-       loadmodel->DrawDebug = R_Q1BSP_DrawDebug;
-       loadmodel->DrawPrepass = R_Q1BSP_DrawPrepass;
-       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;
+       loadmodel->Draw = R_Mod_Draw;
+       loadmodel->DrawDepth = R_Mod_DrawDepth;
+       loadmodel->DrawDebug = R_Mod_DrawDebug;
+       loadmodel->DrawPrepass = R_Mod_DrawPrepass;
+       loadmodel->CompileShadowMap = R_Mod_CompileShadowMap;
+       loadmodel->DrawShadowMap = R_Mod_DrawShadowMap;
+       loadmodel->DrawLight = R_Mod_DrawLight;
        loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
        loadmodel->TraceLine = Mod_MDLMD2MD3_TraceLine;
        // FIXME add TraceBrush!
@@ -1022,11 +1018,12 @@ void Mod_IDP0_Load(dp_model_t *mod, void *buffer, void *bufferend)
        loadmodel->AnimateVertices = Mod_MDL_AnimateVertices;
 
        loadmodel->num_surfaces = 1;
-       loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
+       loadmodel->submodelsurfaces_start = 0;
+       loadmodel->submodelsurfaces_end = loadmodel->num_surfaces;
        data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int));
        loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
-       loadmodel->sortedmodelsurfaces = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
-       loadmodel->sortedmodelsurfaces[0] = 0;
+       loadmodel->modelsurfaces_sorted = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
+       loadmodel->modelsurfaces_sorted[0] = 0;
 
        loadmodel->numskins = LittleLong(pinmodel->numskins);
        BOUNDI(loadmodel->numskins,0,65536);
@@ -1046,6 +1043,9 @@ void Mod_IDP0_Load(dp_model_t *mod, void *buffer, void *bufferend)
        i = LittleLong (pinmodel->flags);
        loadmodel->effects = ((i & 255) << 24) | (i & 0x00FFFF00);
 
+       if (strstr(r_nolerp_list.string, loadmodel->name))
+               loadmodel->nolerp = true;
+
        for (i = 0;i < 3;i++)
        {
                loadmodel->surfmesh.num_morphmdlframescale[i] = LittleFloat (pinmodel->scale[i]);
@@ -1131,7 +1131,7 @@ void Mod_IDP0_Load(dp_model_t *mod, void *buffer, void *bufferend)
                for (j = 0;j < 3;j++)
                        loadmodel->surfmesh.data_element3i[i*3+j] = LittleLong(pintriangles[i].vertindex[j]);
        // validate (note numverts is used because this is the original data)
-       Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles, 0, numverts, __FILE__, __LINE__);
+       Mod_ValidateElements(loadmodel->surfmesh.data_element3i, NULL, loadmodel->surfmesh.num_triangles, 0, numverts, __FILE__, __LINE__);
        // now butcher the elements according to vertonseam and tri->facesfront
        // and then compact the vertex set to remove duplicates
        for (i = 0;i < loadmodel->surfmesh.num_triangles;i++)
@@ -1180,13 +1180,7 @@ void Mod_IDP0_Load(dp_model_t *mod, void *buffer, void *bufferend)
 // load the frames
        loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
        loadmodel->surfmesh.data_morphmdlvertex = (trivertx_t *)Mem_Alloc(loadmodel->mempool, sizeof(trivertx_t) * loadmodel->surfmesh.num_morphframes * loadmodel->surfmesh.num_vertices);
-       if (r_enableshadowvolumes.integer)
-       {
-               loadmodel->surfmesh.data_neighbor3i = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_triangles * sizeof(int[3]));
-       }
        Mod_MDL_LoadFrames (startframes, numverts, vertremap);
-       if (loadmodel->surfmesh.data_neighbor3i)
-               Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
        loadmodel->surfmesh.isanimated = Mod_Alias_CalculateBoundingBox();
        Mod_Alias_MorphMesh_CompileFrames();
 
@@ -1259,7 +1253,7 @@ void Mod_IDP0_Load(dp_model_t *mod, void *buffer, void *bufferend)
                                        dpsnprintf (name, sizeof(name), "%s_%i_%i", loadmodel->name, i, j);
                                else
                                        dpsnprintf (name, sizeof(name), "%s_%i", loadmodel->name, i);
-                               if (!Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, loadmodel->data_textures + totalskins * loadmodel->num_surfaces, name, false, false, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP | TEXF_COMPRESS))
+                               if (!Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, loadmodel->data_textures + totalskins * loadmodel->num_surfaces, name, false, false, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL))
                                        Mod_LoadCustomMaterial(loadmodel->mempool, loadmodel->data_textures + totalskins * loadmodel->num_surfaces, name, SUPERCONTENTS_SOLID, MATERIALFLAG_WALL, R_SkinFrame_LoadInternalQuake(name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_PICMIP, true, r_fullbrights.integer, (unsigned char *)datapointer, skinwidth, skinheight));
                                datapointer += skinwidth * skinheight;
                                totalskins++;
@@ -1325,18 +1319,9 @@ void Mod_IDP0_Load(dp_model_t *mod, void *buffer, void *bufferend)
                loadmodel->TracePoint = Mod_CollisionBIH_TracePoint_Mesh;
                loadmodel->PointSuperContents = Mod_CollisionBIH_PointSuperContents_Mesh;
        }
-
-       // because shaders can do somewhat unexpected things, check for unusual features now
-       for (i = 0;i < loadmodel->num_textures;i++)
-       {
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_SKY))
-                       mod->DrawSky = R_Q1BSP_DrawSky;
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
-                       mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
-       }
 }
 
-void Mod_IDP2_Load(dp_model_t *mod, void *buffer, void *bufferend)
+void Mod_IDP2_Load(model_t *mod, void *buffer, void *bufferend)
 {
        int i, j, hashindex, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end;
        float iskinwidth, iskinheight;
@@ -1368,17 +1353,13 @@ void Mod_IDP2_Load(dp_model_t *mod, void *buffer, void *bufferend)
        loadmodel->modeldatatypestring = "MD2";
 
        loadmodel->type = mod_alias;
-       loadmodel->DrawSky = NULL;
-       loadmodel->DrawAddWaterPlanes = NULL;
-       loadmodel->Draw = R_Q1BSP_Draw;
-       loadmodel->DrawDepth = R_Q1BSP_DrawDepth;
-       loadmodel->DrawDebug = R_Q1BSP_DrawDebug;
-       loadmodel->DrawPrepass = R_Q1BSP_DrawPrepass;
-       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;
+       loadmodel->Draw = R_Mod_Draw;
+       loadmodel->DrawDepth = R_Mod_DrawDepth;
+       loadmodel->DrawDebug = R_Mod_DrawDebug;
+       loadmodel->DrawPrepass = R_Mod_DrawPrepass;
+       loadmodel->CompileShadowMap = R_Mod_CompileShadowMap;
+       loadmodel->DrawShadowMap = R_Mod_DrawShadowMap;
+       loadmodel->DrawLight = R_Mod_DrawLight;
        loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
        loadmodel->TraceLine = Mod_MDLMD2MD3_TraceLine;
        loadmodel->PointSuperContents = NULL;
@@ -1418,18 +1399,15 @@ void Mod_IDP2_Load(dp_model_t *mod, void *buffer, void *bufferend)
        iskinheight = 1.0f / skinheight;
 
        loadmodel->num_surfaces = 1;
-       loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
-       data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->numframes * sizeof(animscene_t) + loadmodel->numframes * sizeof(float[6]) + loadmodel->surfmesh.num_triangles * sizeof(int[3]) + (r_enableshadowvolumes.integer ? loadmodel->surfmesh.num_triangles * sizeof(int[3]) : 0));
+       loadmodel->submodelsurfaces_start = 0;
+       loadmodel->submodelsurfaces_end = loadmodel->num_surfaces;
+       data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->numframes * sizeof(animscene_t) + loadmodel->numframes * sizeof(float[6]) + loadmodel->surfmesh.num_triangles * sizeof(int[3]));
        loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
-       loadmodel->sortedmodelsurfaces = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
-       loadmodel->sortedmodelsurfaces[0] = 0;
+       loadmodel->modelsurfaces_sorted = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
+       loadmodel->modelsurfaces_sorted[0] = 0;
        loadmodel->animscenes = (animscene_t *)data;data += loadmodel->numframes * sizeof(animscene_t);
        loadmodel->surfmesh.data_morphmd2framesize6f = (float *)data;data += loadmodel->numframes * sizeof(float[6]);
        loadmodel->surfmesh.data_element3i = (int *)data;data += loadmodel->surfmesh.num_triangles * sizeof(int[3]);
-       if (r_enableshadowvolumes.integer)
-       {
-               loadmodel->surfmesh.data_neighbor3i = (int *)data;data += loadmodel->surfmesh.num_triangles * sizeof(int[3]);
-       }
 
        loadmodel->synctype = ST_RAND;
 
@@ -1451,7 +1429,7 @@ void Mod_IDP2_Load(dp_model_t *mod, void *buffer, void *bufferend)
                loadmodel->num_texturesperskin = loadmodel->num_surfaces;
                loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
                for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
-                       Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, loadmodel->data_textures + i * loadmodel->num_surfaces, inskin, true, true, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP | TEXF_COMPRESS);
+                       Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, loadmodel->data_textures + i * loadmodel->num_surfaces, inskin, true, true, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL);
        }
        else
        {
@@ -1573,8 +1551,6 @@ void Mod_IDP2_Load(dp_model_t *mod, void *buffer, void *bufferend)
 
        Mem_Free(vertremap);
 
-       if (loadmodel->surfmesh.data_neighbor3i)
-               Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
        loadmodel->surfmesh.isanimated = Mod_Alias_CalculateBoundingBox();
        Mod_Alias_MorphMesh_CompileFrames();
        if(mod_alias_force_animated.string[0])
@@ -1597,18 +1573,9 @@ void Mod_IDP2_Load(dp_model_t *mod, void *buffer, void *bufferend)
                loadmodel->TracePoint = Mod_CollisionBIH_TracePoint_Mesh;
                loadmodel->PointSuperContents = Mod_CollisionBIH_PointSuperContents_Mesh;
        }
-
-       // because shaders can do somewhat unexpected things, check for unusual features now
-       for (i = 0;i < loadmodel->num_textures;i++)
-       {
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_SKY))
-                       mod->DrawSky = R_Q1BSP_DrawSky;
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
-                       mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
-       }
 }
 
-void Mod_IDP3_Load(dp_model_t *mod, void *buffer, void *bufferend)
+void Mod_IDP3_Load(model_t *mod, void *buffer, void *bufferend)
 {
        int i, j, k, version, meshvertices, meshtriangles;
        unsigned char *data;
@@ -1635,17 +1602,13 @@ void Mod_IDP3_Load(dp_model_t *mod, void *buffer, void *bufferend)
        loadmodel->modeldatatypestring = "MD3";
 
        loadmodel->type = mod_alias;
-       loadmodel->DrawSky = NULL;
-       loadmodel->DrawAddWaterPlanes = NULL;
-       loadmodel->Draw = R_Q1BSP_Draw;
-       loadmodel->DrawDepth = R_Q1BSP_DrawDepth;
-       loadmodel->DrawDebug = R_Q1BSP_DrawDebug;
-       loadmodel->DrawPrepass = R_Q1BSP_DrawPrepass;
-       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;
+       loadmodel->Draw = R_Mod_Draw;
+       loadmodel->DrawDepth = R_Mod_DrawDepth;
+       loadmodel->DrawDebug = R_Mod_DrawDebug;
+       loadmodel->DrawPrepass = R_Mod_DrawPrepass;
+       loadmodel->CompileShadowMap = R_Mod_CompileShadowMap;
+       loadmodel->DrawShadowMap = R_Mod_DrawShadowMap;
+       loadmodel->DrawLight = R_Mod_DrawLight;
        loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
        loadmodel->TraceLine = Mod_MDLMD2MD3_TraceLine;
        loadmodel->PointSuperContents = NULL;
@@ -1707,22 +1670,19 @@ void Mod_IDP3_Load(dp_model_t *mod, void *buffer, void *bufferend)
                meshtriangles += LittleLong(pinmesh->num_triangles);
        }
 
-       loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
+       loadmodel->submodelsurfaces_start = 0;
+       loadmodel->submodelsurfaces_end = loadmodel->num_surfaces;
        loadmodel->num_textures = loadmodel->num_surfaces * loadmodel->numskins;
        loadmodel->num_texturesperskin = loadmodel->num_surfaces;
-       data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + (r_enableshadowvolumes.integer ? meshtriangles * sizeof(int[3]) : 0) + (meshvertices <= 65536 ? meshtriangles * sizeof(unsigned short[3]) : 0) + meshvertices * sizeof(float[2]) + meshvertices * loadmodel->numframes * sizeof(md3vertex_t));
+       data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + (meshvertices <= 65536 ? meshtriangles * sizeof(unsigned short[3]) : 0) + meshvertices * sizeof(float[2]) + meshvertices * loadmodel->numframes * sizeof(md3vertex_t));
        loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
-       loadmodel->sortedmodelsurfaces = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
+       loadmodel->modelsurfaces_sorted = (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 = meshvertices;
        loadmodel->surfmesh.num_triangles = meshtriangles;
        loadmodel->surfmesh.num_morphframes = loadmodel->numframes; // TODO: remove?
        loadmodel->num_poses = loadmodel->surfmesh.num_morphframes;
        loadmodel->surfmesh.data_element3i = (int *)data;data += meshtriangles * sizeof(int[3]);
-       if (r_enableshadowvolumes.integer)
-       {
-               loadmodel->surfmesh.data_neighbor3i = (int *)data;data += meshtriangles * sizeof(int[3]);
-       }
        loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += meshvertices * sizeof(float[2]);
        loadmodel->surfmesh.data_morphmd3vertex = (md3vertex_t *)data;data += meshvertices * loadmodel->numframes * sizeof(md3vertex_t);
        if (meshvertices <= 65536)
@@ -1736,7 +1696,7 @@ void Mod_IDP3_Load(dp_model_t *mod, void *buffer, void *bufferend)
        {
                if (memcmp(pinmesh->identifier, "IDP3", 4))
                        Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)");
-               loadmodel->sortedmodelsurfaces[i] = i;
+               loadmodel->modelsurfaces_sorted[i] = i;
                surface = loadmodel->data_surfaces + i;
                surface->texture = loadmodel->data_textures + i;
                surface->num_firsttriangle = meshtriangles;
@@ -1747,7 +1707,12 @@ void Mod_IDP3_Load(dp_model_t *mod, void *buffer, void *bufferend)
                meshtriangles += surface->num_triangles;
 
                for (j = 0;j < surface->num_triangles * 3;j++)
-                       loadmodel->surfmesh.data_element3i[j + surface->num_firsttriangle * 3] = surface->num_firstvertex + LittleLong(((int *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_elements)))[j]);
+               {
+                       int e = surface->num_firstvertex + LittleLong(((int *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_elements)))[j]);
+                       loadmodel->surfmesh.data_element3i[j + surface->num_firsttriangle * 3] = e;
+                       if (loadmodel->surfmesh.data_element3s)
+                               loadmodel->surfmesh.data_element3s[j + surface->num_firsttriangle * 3] = e;
+               }
                for (j = 0;j < surface->num_vertices;j++)
                {
                        loadmodel->surfmesh.data_texcoordtexture2f[(j + surface->num_firstvertex) * 2 + 0] = LittleFloat(((float *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 0]);
@@ -1769,13 +1734,8 @@ void Mod_IDP3_Load(dp_model_t *mod, void *buffer, void *bufferend)
 
                Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, pinmesh->name, LittleLong(pinmesh->num_shaders) >= 1 ? ((md3shader_t *)((unsigned char *) pinmesh + LittleLong(pinmesh->lump_shaders)))->name : "");
 
-               Mod_ValidateElements(loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3, surface->num_triangles, surface->num_firstvertex, surface->num_vertices, __FILE__, __LINE__);
+               Mod_ValidateElements(loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3, loadmodel->surfmesh.data_element3s + surface->num_firsttriangle * 3, surface->num_triangles, surface->num_firstvertex, surface->num_vertices, __FILE__, __LINE__);
        }
-       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];
-       if (loadmodel->surfmesh.data_neighbor3i)
-               Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
        Mod_Alias_MorphMesh_CompileFrames();
        loadmodel->surfmesh.isanimated = Mod_Alias_CalculateBoundingBox();
        Mod_FreeSkinFiles(skinfiles);
@@ -1793,18 +1753,9 @@ void Mod_IDP3_Load(dp_model_t *mod, void *buffer, void *bufferend)
                loadmodel->TracePoint = Mod_CollisionBIH_TracePoint_Mesh;
                loadmodel->PointSuperContents = Mod_CollisionBIH_PointSuperContents_Mesh;
        }
-
-       // because shaders can do somewhat unexpected things, check for unusual features now
-       for (i = 0;i < loadmodel->num_textures;i++)
-       {
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_SKY))
-                       mod->DrawSky = R_Q1BSP_DrawSky;
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
-                       mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
-       }
 }
 
-void Mod_ZYMOTICMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
+void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer, void *bufferend)
 {
        zymtype1header_t *pinmodel, *pheader;
        unsigned char *pbase;
@@ -1876,17 +1827,13 @@ void Mod_ZYMOTICMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                return;
        }
 
-       loadmodel->DrawSky = NULL;
-       loadmodel->DrawAddWaterPlanes = NULL;
-       loadmodel->Draw = R_Q1BSP_Draw;
-       loadmodel->DrawDepth = R_Q1BSP_DrawDepth;
-       loadmodel->DrawDebug = R_Q1BSP_DrawDebug;
-       loadmodel->DrawPrepass = R_Q1BSP_DrawPrepass;
-       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;
+       loadmodel->Draw = R_Mod_Draw;
+       loadmodel->DrawDepth = R_Mod_DrawDepth;
+       loadmodel->DrawDebug = R_Mod_DrawDebug;
+       loadmodel->DrawPrepass = R_Mod_DrawPrepass;
+       loadmodel->CompileShadowMap = R_Mod_CompileShadowMap;
+       loadmodel->DrawShadowMap = R_Mod_DrawShadowMap;
+       loadmodel->DrawLight = R_Mod_DrawLight;
        loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
        loadmodel->TraceLine = Mod_MDLMD2MD3_TraceLine;
        loadmodel->PointSuperContents = NULL;
@@ -1910,7 +1857,7 @@ void Mod_ZYMOTICMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        }
 
        // model bbox
-       // LordHavoc: actually we blow this away later with Mod_Alias_CalculateBoundingBox()
+       // LadyHavoc: actually we blow this away later with Mod_Alias_CalculateBoundingBox()
        modelradius = pheader->radius;
        for (i = 0;i < 3;i++)
        {
@@ -1980,20 +1927,17 @@ void Mod_ZYMOTICMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        meshvertices = pheader->numverts;
        meshtriangles = pheader->numtris;
 
-       loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
+       loadmodel->submodelsurfaces_start = 0;
+       loadmodel->submodelsurfaces_end = loadmodel->num_surfaces;
        loadmodel->num_textures = loadmodel->num_surfaces * loadmodel->numskins;
        loadmodel->num_texturesperskin = loadmodel->num_surfaces;
-       data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + (r_enableshadowvolumes.integer ? meshtriangles * sizeof(int[3]) : 0) + (meshvertices <= 65536 ? meshtriangles * sizeof(unsigned short[3]) : 0) + meshvertices * (sizeof(float[14]) + sizeof(unsigned short) + sizeof(unsigned char[2][4])) + loadmodel->num_poses * loadmodel->num_bones * sizeof(short[7]) + loadmodel->num_bones * sizeof(float[12]));
+       data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + (meshvertices <= 65536 ? meshtriangles * sizeof(unsigned short[3]) : 0) + meshvertices * (sizeof(float[14]) + sizeof(unsigned short) + sizeof(unsigned char[2][4])) + loadmodel->num_poses * loadmodel->num_bones * sizeof(short[7]) + loadmodel->num_bones * sizeof(float[12]));
        loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
-       loadmodel->sortedmodelsurfaces = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
+       loadmodel->modelsurfaces_sorted = (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 = meshvertices;
        loadmodel->surfmesh.num_triangles = meshtriangles;
        loadmodel->surfmesh.data_element3i = (int *)data;data += meshtriangles * sizeof(int[3]);
-       if (r_enableshadowvolumes.integer)
-       {
-               loadmodel->surfmesh.data_neighbor3i = (int *)data;data += meshtriangles * sizeof(int[3]);
-       }
        loadmodel->surfmesh.data_vertex3f = (float *)data;data += meshvertices * sizeof(float[3]);
        loadmodel->surfmesh.data_svector3f = (float *)data;data += meshvertices * sizeof(float[3]);
        loadmodel->surfmesh.data_tvector3f = (float *)data;data += meshvertices * sizeof(float[3]);
@@ -2132,7 +2076,7 @@ void Mod_ZYMOTICMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                if (renderlist + count * 3 > renderlistend || (i == pheader->numshaders - 1 && renderlist + count * 3 != renderlistend))
                        Host_Error("%s corrupt renderlist (wrong size)", loadmodel->name);
 
-               loadmodel->sortedmodelsurfaces[i] = i;
+               loadmodel->modelsurfaces_sorted[i] = i;
                surface = loadmodel->data_surfaces + i;
                surface->texture = loadmodel->data_textures + i;
                surface->num_firsttriangle = meshtriangles;
@@ -2174,12 +2118,10 @@ void Mod_ZYMOTICMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        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__);
        Mod_BuildBaseBonePoses();
        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);
        loadmodel->surfmesh.isanimated = Mod_Alias_CalculateBoundingBox();
        if(mod_alias_force_animated.string[0])
                loadmodel->surfmesh.isanimated = mod_alias_force_animated.integer != 0;
@@ -2194,18 +2136,9 @@ void Mod_ZYMOTICMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                loadmodel->TracePoint = Mod_CollisionBIH_TracePoint_Mesh;
                loadmodel->PointSuperContents = Mod_CollisionBIH_PointSuperContents_Mesh;
        }
-
-       // because shaders can do somewhat unexpected things, check for unusual features now
-       for (i = 0;i < loadmodel->num_textures;i++)
-       {
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_SKY))
-                       mod->DrawSky = R_Q1BSP_DrawSky;
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
-                       mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
-       }
 }
 
-void Mod_DARKPLACESMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
+void Mod_DARKPLACESMODEL_Load(model_t *mod, void *buffer, void *bufferend)
 {
        dpmheader_t *pheader;
        dpmframe_t *frames;
@@ -2261,24 +2194,20 @@ void Mod_DARKPLACESMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                return;
        }
 
-       loadmodel->DrawSky = NULL;
-       loadmodel->DrawAddWaterPlanes = NULL;
-       loadmodel->Draw = R_Q1BSP_Draw;
-       loadmodel->DrawDepth = R_Q1BSP_DrawDepth;
-       loadmodel->DrawDebug = R_Q1BSP_DrawDebug;
-       loadmodel->DrawPrepass = R_Q1BSP_DrawPrepass;
-       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;
+       loadmodel->Draw = R_Mod_Draw;
+       loadmodel->DrawDepth = R_Mod_DrawDepth;
+       loadmodel->DrawDebug = R_Mod_DrawDebug;
+       loadmodel->DrawPrepass = R_Mod_DrawPrepass;
+       loadmodel->CompileShadowMap = R_Mod_CompileShadowMap;
+       loadmodel->DrawShadowMap = R_Mod_DrawShadowMap;
+       loadmodel->DrawLight = R_Mod_DrawLight;
        loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
        loadmodel->TraceLine = Mod_MDLMD2MD3_TraceLine;
        loadmodel->PointSuperContents = NULL;
        loadmodel->AnimateVertices = Mod_Skeletal_AnimateVertices;
 
        // model bbox
-       // LordHavoc: actually we blow this away later with Mod_Alias_CalculateBoundingBox()
+       // LadyHavoc: actually we blow this away later with Mod_Alias_CalculateBoundingBox()
        for (i = 0;i < 3;i++)
        {
                loadmodel->normalmins[i] = pheader->mins[i];
@@ -2312,21 +2241,18 @@ void Mod_DARKPLACESMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        loadmodel->numframes = pheader->num_frames;
        loadmodel->num_bones = pheader->num_bones;
        loadmodel->num_poses = loadmodel->numframes;
-       loadmodel->nummodelsurfaces = loadmodel->num_surfaces = pheader->num_meshs;
+       loadmodel->submodelsurfaces_start = 0;
+       loadmodel->submodelsurfaces_end = loadmodel->num_surfaces = pheader->num_meshs;
        loadmodel->num_textures = loadmodel->num_surfaces * loadmodel->numskins;
        loadmodel->num_texturesperskin = loadmodel->num_surfaces;
        // do most allocations as one merged chunk
-       data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + (meshvertices <= 65536 ? meshtriangles * sizeof(unsigned short[3]) : 0) + (r_enableshadowvolumes.integer ? meshtriangles * sizeof(int[3]) : 0) + meshvertices * (sizeof(float[14]) + sizeof(unsigned short) + sizeof(unsigned char[2][4])) + loadmodel->num_poses * loadmodel->num_bones * sizeof(short[7]) + loadmodel->num_bones * sizeof(float[12]) + loadmodel->numskins * sizeof(animscene_t) + loadmodel->num_bones * sizeof(aliasbone_t) + loadmodel->numframes * sizeof(animscene_t));
+       data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + (meshvertices <= 65536 ? meshtriangles * sizeof(unsigned short[3]) : 0) + meshvertices * (sizeof(float[14]) + sizeof(unsigned short) + sizeof(unsigned char[2][4])) + loadmodel->num_poses * loadmodel->num_bones * sizeof(short[7]) + loadmodel->num_bones * sizeof(float[12]) + loadmodel->numskins * sizeof(animscene_t) + loadmodel->num_bones * sizeof(aliasbone_t) + loadmodel->numframes * sizeof(animscene_t));
        loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
-       loadmodel->sortedmodelsurfaces = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
+       loadmodel->modelsurfaces_sorted = (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 = meshvertices;
        loadmodel->surfmesh.num_triangles = meshtriangles;
        loadmodel->surfmesh.data_element3i = (int *)data;data += meshtriangles * sizeof(int[3]);
-       if (r_enableshadowvolumes.integer)
-       {
-               loadmodel->surfmesh.data_neighbor3i = (int *)data;data += meshtriangles * sizeof(int[3]);
-       }
        loadmodel->surfmesh.data_vertex3f = (float *)data;data += meshvertices * sizeof(float[3]);
        loadmodel->surfmesh.data_svector3f = (float *)data;data += meshvertices * sizeof(float[3]);
        loadmodel->surfmesh.data_tvector3f = (float *)data;data += meshvertices * sizeof(float[3]);
@@ -2441,11 +2367,12 @@ void Mod_DARKPLACESMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        for (i = 0;i < loadmodel->num_surfaces;i++, dpmmesh++)
        {
                const int *inelements;
-               int *outelements;
+               int *outelement3i;
+               unsigned short *outelement3s;
                const float *intexcoord;
                msurface_t *surface;
 
-               loadmodel->sortedmodelsurfaces[i] = i;
+               loadmodel->modelsurfaces_sorted[i] = i;
                surface = loadmodel->data_surfaces + i;
                surface->texture = loadmodel->data_textures + i;
                surface->num_firsttriangle = meshtriangles;
@@ -2456,15 +2383,20 @@ void Mod_DARKPLACESMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                meshtriangles += surface->num_triangles;
 
                inelements = (int *) (pbase + BigLong(dpmmesh->ofs_indices));
-               outelements = loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3;
+               outelement3i = loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3;
+               outelement3s = loadmodel->surfmesh.data_element3s ? loadmodel->surfmesh.data_element3s + surface->num_firsttriangle * 3 : NULL;
                for (j = 0;j < surface->num_triangles;j++)
                {
                        // swap element order to flip triangles, because Quake uses clockwise (rare) and dpm uses counterclockwise (standard)
-                       outelements[0] = surface->num_firstvertex + BigLong(inelements[2]);
-                       outelements[1] = surface->num_firstvertex + BigLong(inelements[1]);
-                       outelements[2] = surface->num_firstvertex + BigLong(inelements[0]);
-                       inelements += 3;
-                       outelements += 3;
+                       outelement3i[j * 3 + 0] = surface->num_firstvertex + BigLong(inelements[j * 3 + 2]);
+                       outelement3i[j * 3 + 1] = surface->num_firstvertex + BigLong(inelements[j * 3 + 1]);
+                       outelement3i[j * 3 + 2] = surface->num_firstvertex + BigLong(inelements[j * 3 + 0]);
+                       if (outelement3s)
+                       {
+                               outelement3s[j * 3 + 0] = outelement3i[j * 3 + 0];
+                               outelement3s[j * 3 + 1] = outelement3i[j * 3 + 1];
+                               outelement3s[j * 3 + 2] = outelement3i[j * 3 + 2];
+                       }
                }
 
                intexcoord = (float *) (pbase + BigLong(dpmmesh->ofs_texcoords));
@@ -2543,7 +2475,7 @@ void Mod_DARKPLACESMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                // since dpm models do not have named sections, reuse their shader name as the section name
                Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, dpmmesh->shadername, dpmmesh->shadername);
 
-               Mod_ValidateElements(loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3, surface->num_triangles, surface->num_firstvertex, surface->num_vertices, __FILE__, __LINE__);
+               Mod_ValidateElements(loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3, loadmodel->surfmesh.data_element3s + surface->num_firsttriangle * 3, surface->num_triangles, surface->num_firstvertex, surface->num_vertices, __FILE__, __LINE__);
        }
        if (loadmodel->surfmesh.num_blends < meshvertices)
                loadmodel->surfmesh.data_blendweights = (blendweights_t *)Mem_Realloc(loadmodel->mempool, loadmodel->surfmesh.data_blendweights, loadmodel->surfmesh.num_blends * sizeof(blendweights_t));
@@ -2552,13 +2484,8 @@ void Mod_DARKPLACESMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        Mod_MakeSortedSurfaces(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_BuildBaseBonePoses();
        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);
        loadmodel->surfmesh.isanimated = Mod_Alias_CalculateBoundingBox();
        if(mod_alias_force_animated.string[0])
                loadmodel->surfmesh.isanimated = mod_alias_force_animated.integer != 0;
@@ -2573,20 +2500,11 @@ void Mod_DARKPLACESMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                loadmodel->TracePoint = Mod_CollisionBIH_TracePoint_Mesh;
                loadmodel->PointSuperContents = Mod_CollisionBIH_PointSuperContents_Mesh;
        }
-
-       // because shaders can do somewhat unexpected things, check for unusual features now
-       for (i = 0;i < loadmodel->num_textures;i++)
-       {
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_SKY))
-                       mod->DrawSky = R_Q1BSP_DrawSky;
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
-                       mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
-       }
 }
 
 // no idea why PSK/PSA files contain weird quaternions but they do...
 #define PSKQUATNEGATIONS
-void Mod_PSKMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
+void Mod_PSKMODEL_Load(model_t *mod, void *buffer, void *bufferend)
 {
        int i, j, index, version, recordsize, numrecords, meshvertices, meshtriangles;
        int numpnts, numvtxw, numfaces, nummatts, numbones, numrawweights, numanimbones, numanims, numanimkeys;
@@ -2615,17 +2533,13 @@ void Mod_PSKMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        loadmodel->modeldatatypestring = "PSK";
 
        loadmodel->type = mod_alias;
-       loadmodel->DrawSky = NULL;
-       loadmodel->DrawAddWaterPlanes = NULL;
-       loadmodel->Draw = R_Q1BSP_Draw;
-       loadmodel->DrawDepth = R_Q1BSP_DrawDepth;
-       loadmodel->DrawDebug = R_Q1BSP_DrawDebug;
-       loadmodel->DrawPrepass = R_Q1BSP_DrawPrepass;
-       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;
+       loadmodel->Draw = R_Mod_Draw;
+       loadmodel->DrawDepth = R_Mod_DrawDepth;
+       loadmodel->DrawDebug = R_Mod_DrawDebug;
+       loadmodel->DrawPrepass = R_Mod_DrawPrepass;
+       loadmodel->CompileShadowMap = R_Mod_CompileShadowMap;
+       loadmodel->DrawShadowMap = R_Mod_DrawShadowMap;
+       loadmodel->DrawLight = R_Mod_DrawLight;
        loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
        loadmodel->TraceLine = Mod_MDLMD2MD3_TraceLine;
        loadmodel->PointSuperContents = NULL;
@@ -2978,22 +2892,19 @@ void Mod_PSKMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                loadmodel->numskins = 1;
        loadmodel->num_bones = numbones;
        loadmodel->num_poses = loadmodel->numframes;
-       loadmodel->nummodelsurfaces = loadmodel->num_surfaces = nummatts;
+       loadmodel->submodelsurfaces_start = 0;
+       loadmodel->submodelsurfaces_end = loadmodel->num_surfaces = nummatts;
        loadmodel->num_textures = loadmodel->num_surfaces * loadmodel->numskins;
        loadmodel->num_texturesperskin = loadmodel->num_surfaces;
        loadmodel->surfmesh.num_vertices = meshvertices;
        loadmodel->surfmesh.num_triangles = meshtriangles;
        // do most allocations as one merged chunk
-       size = loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + loadmodel->surfmesh.num_triangles * sizeof(int[3]) + (r_enableshadowvolumes.integer ? loadmodel->surfmesh.num_triangles * sizeof(int[3]) : 0)  + loadmodel->surfmesh.num_vertices * sizeof(float[3]) + loadmodel->surfmesh.num_vertices * sizeof(float[3]) + loadmodel->surfmesh.num_vertices * sizeof(float[3]) + loadmodel->surfmesh.num_vertices * sizeof(float[3]) + loadmodel->surfmesh.num_vertices * sizeof(float[2]) + loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]) + loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]) + loadmodel->surfmesh.num_vertices * sizeof(unsigned short) + loadmodel->num_poses * loadmodel->num_bones * sizeof(short[7]) + loadmodel->num_bones * sizeof(float[12]) + loadmodel->numskins * sizeof(animscene_t) + loadmodel->num_bones * sizeof(aliasbone_t) + loadmodel->numframes * sizeof(animscene_t) + ((loadmodel->surfmesh.num_vertices <= 65536) ? (loadmodel->surfmesh.num_triangles * sizeof(unsigned short[3])) : 0);
+       size = loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + loadmodel->surfmesh.num_triangles * sizeof(int[3]) + loadmodel->surfmesh.num_vertices * sizeof(float[3]) + loadmodel->surfmesh.num_vertices * sizeof(float[3]) + loadmodel->surfmesh.num_vertices * sizeof(float[3]) + loadmodel->surfmesh.num_vertices * sizeof(float[3]) + loadmodel->surfmesh.num_vertices * sizeof(float[2]) + loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]) + loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]) + loadmodel->surfmesh.num_vertices * sizeof(unsigned short) + loadmodel->num_poses * loadmodel->num_bones * sizeof(short[7]) + loadmodel->num_bones * sizeof(float[12]) + loadmodel->numskins * sizeof(animscene_t) + loadmodel->num_bones * sizeof(aliasbone_t) + loadmodel->numframes * sizeof(animscene_t) + ((loadmodel->surfmesh.num_vertices <= 65536) ? (loadmodel->surfmesh.num_triangles * sizeof(unsigned short[3])) : 0);
        data = (unsigned char *)Mem_Alloc(loadmodel->mempool, size);
        loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
-       loadmodel->sortedmodelsurfaces = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
+       loadmodel->modelsurfaces_sorted = (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.data_element3i = (int *)data;data += loadmodel->surfmesh.num_triangles * sizeof(int[3]);
-       if (r_enableshadowvolumes.integer)
-       {
-               loadmodel->surfmesh.data_neighbor3i = (int *)data;data += loadmodel->surfmesh.num_triangles * sizeof(int[3]);
-       }
        loadmodel->surfmesh.data_vertex3f = (float *)data;data += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
        loadmodel->surfmesh.data_svector3f = (float *)data;data += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
        loadmodel->surfmesh.data_tvector3f = (float *)data;data += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
@@ -3027,7 +2938,7 @@ void Mod_PSKMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        {
                // since psk models do not have named sections, reuse their shader name as the section name
                Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + index, skinfiles, matts[index].name, matts[index].name);
-               loadmodel->sortedmodelsurfaces[index] = index;
+               loadmodel->modelsurfaces_sorted[index] = index;
                loadmodel->data_surfaces[index].texture = loadmodel->data_textures + index;
                loadmodel->data_surfaces[index].num_firstvertex = 0;
                loadmodel->data_surfaces[index].num_vertices = loadmodel->surfmesh.num_vertices;
@@ -3162,6 +3073,8 @@ void Mod_PSKMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                        biggestorigin = max(biggestorigin, fabs(k->origin[2]));
                }
                loadmodel->num_posescale = biggestorigin / 32767.0f;
+               if (loadmodel->num_posescale == 0) // don't divide by zero
+                       loadmodel->num_posescale = 1.0;
                loadmodel->num_poseinvscale = 1.0f / loadmodel->num_posescale;
        
                // load the poses from the animkeys
@@ -3201,6 +3114,8 @@ void Mod_PSKMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                        biggestorigin = max(biggestorigin, fabs(p->basepose.origin[2]));
                }
                loadmodel->num_posescale = biggestorigin / 32767.0f;
+               if (loadmodel->num_posescale == 0) // don't divide by zero
+                       loadmodel->num_posescale = 1.0;
                loadmodel->num_poseinvscale = 1.0f / loadmodel->num_posescale;
        
                // load the basepose as a frame
@@ -3233,11 +3148,9 @@ void Mod_PSKMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        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__);
        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);
        loadmodel->surfmesh.isanimated = Mod_Alias_CalculateBoundingBox();
        if(mod_alias_force_animated.string[0])
                loadmodel->surfmesh.isanimated = mod_alias_force_animated.integer != 0;
@@ -3252,18 +3165,9 @@ void Mod_PSKMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                loadmodel->TracePoint = Mod_CollisionBIH_TracePoint_Mesh;
                loadmodel->PointSuperContents = Mod_CollisionBIH_PointSuperContents_Mesh;
        }
-
-       // because shaders can do somewhat unexpected things, check for unusual features now
-       for (i = 0;i < loadmodel->num_textures;i++)
-       {
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_SKY))
-                       mod->DrawSky = R_Q1BSP_DrawSky;
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
-                       mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
-       }
 }
 
-void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
+void Mod_INTERQUAKEMODEL_Load(model_t *mod, void *buffer, void *bufferend)
 {
        unsigned char *data;
        const char *text;
@@ -3274,8 +3178,6 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        float biggestorigin;
        const unsigned int *inelements;
        int *outelements;
-       const int *inneighbors;
-       int *outneighbors;
        float *outvertex, *outnormal, *outtexcoord, *outsvector, *outtvector, *outcolor;
        // this pointers into the file data are read only through Little* functions so they can be unaligned memory
        const float *vnormal = NULL;
@@ -3304,7 +3206,7 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                Host_Error ("Mod_INTERQUAKEMODEL_Load: %s is not an Inter-Quake Model %d", loadmodel->name, (int)(pend - pbase));
 
        // copy struct (otherwise it may be misaligned)
-       // LordHavoc: okay it's definitely not misaligned here, but for consistency...
+       // LadyHavoc: okay it's definitely not misaligned here, but for consistency...
        memcpy(&header, pbase, sizeof(iqmheader_t));
 
        if (memcmp(header.id, "INTERQUAKEMODEL", 16))
@@ -3449,17 +3351,13 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
 
        text = header.num_text && header.ofs_text ? (const char *)(pbase + header.ofs_text) : "";
 
-       loadmodel->DrawSky = NULL;
-       loadmodel->DrawAddWaterPlanes = NULL;
-       loadmodel->Draw = R_Q1BSP_Draw;
-       loadmodel->DrawDepth = R_Q1BSP_DrawDepth;
-       loadmodel->DrawDebug = R_Q1BSP_DrawDebug;
-       loadmodel->DrawPrepass = R_Q1BSP_DrawPrepass;
-       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;
+       loadmodel->Draw = R_Mod_Draw;
+       loadmodel->DrawDepth = R_Mod_DrawDepth;
+       loadmodel->DrawDebug = R_Mod_DrawDebug;
+       loadmodel->DrawPrepass = R_Mod_DrawPrepass;
+       loadmodel->CompileShadowMap = R_Mod_CompileShadowMap;
+       loadmodel->DrawShadowMap = R_Mod_DrawShadowMap;
+       loadmodel->DrawLight = R_Mod_DrawLight;
        loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
        loadmodel->TraceLine = Mod_MDLMD2MD3_TraceLine;
        loadmodel->PointSuperContents = NULL;
@@ -3473,7 +3371,8 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        loadmodel->numframes = max(header.num_anims, 1);
        loadmodel->num_bones = header.num_joints;
        loadmodel->num_poses = max(header.num_frames, 1);
-       loadmodel->nummodelsurfaces = loadmodel->num_surfaces = header.num_meshes;
+       loadmodel->submodelsurfaces_start = 0;
+       loadmodel->submodelsurfaces_end = loadmodel->num_surfaces = header.num_meshes;
        loadmodel->num_textures = loadmodel->num_surfaces * loadmodel->numskins;
        loadmodel->num_texturesperskin = loadmodel->num_surfaces;
 
@@ -3481,17 +3380,13 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        meshtriangles = header.num_triangles;
 
        // do most allocations as one merged chunk
-       data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + (meshvertices <= 65536 ? meshtriangles * sizeof(unsigned short[3]) : 0) + (r_enableshadowvolumes.integer ? meshtriangles * sizeof(int[3]) : 0) + meshvertices * (sizeof(float[14]) + (vcolor4f || vcolor4ub ? sizeof(float[4]) : 0)) + (vblendindexes && vblendweights ? meshvertices * (sizeof(unsigned short) + sizeof(unsigned char[2][4])) : 0) + loadmodel->num_poses * loadmodel->num_bones * sizeof(short[7]) + loadmodel->num_bones * sizeof(float[12]) + loadmodel->numskins * sizeof(animscene_t) + loadmodel->num_bones * sizeof(aliasbone_t) + loadmodel->numframes * sizeof(animscene_t));
+       data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + (meshvertices <= 65536 ? meshtriangles * sizeof(unsigned short[3]) : 0) + meshvertices * (sizeof(float[14]) + (vcolor4f || vcolor4ub ? sizeof(float[4]) : 0)) + (vblendindexes && vblendweights ? meshvertices * (sizeof(unsigned short) + sizeof(unsigned char[2][4])) : 0) + loadmodel->num_poses * loadmodel->num_bones * sizeof(short[7]) + loadmodel->num_bones * sizeof(float[12]) + loadmodel->numskins * sizeof(animscene_t) + loadmodel->num_bones * sizeof(aliasbone_t) + loadmodel->numframes * sizeof(animscene_t));
        loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
-       loadmodel->sortedmodelsurfaces = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
+       loadmodel->modelsurfaces_sorted = (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 = meshvertices;
        loadmodel->surfmesh.num_triangles = meshtriangles;
        loadmodel->surfmesh.data_element3i = (int *)data;data += meshtriangles * sizeof(int[3]);
-       if (r_enableshadowvolumes.integer)
-       {
-               loadmodel->surfmesh.data_neighbor3i = (int *)data;data += meshtriangles * sizeof(int[3]);
-       }
        loadmodel->surfmesh.data_vertex3f = (float *)data;data += meshvertices * sizeof(float[3]);
        loadmodel->surfmesh.data_svector3f = (float *)data;data += meshvertices * sizeof(float[3]);
        loadmodel->surfmesh.data_tvector3f = (float *)data;data += meshvertices * sizeof(float[3]);
@@ -3845,22 +3740,10 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                outelements += 3;
                inelements += 3;
        }
-       Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles, 0, header.num_vertexes, __FILE__, __LINE__);
-
-       if (header.ofs_neighbors && loadmodel->surfmesh.data_neighbor3i)
-       {
-               // this unaligned memory access is safe (LittleLong reads as bytes)
-               inneighbors = (const int *)(pbase + header.ofs_neighbors);
-               outneighbors = loadmodel->surfmesh.data_neighbor3i;
-               for (i = 0;i < (int)header.num_triangles;i++)
-               {
-                       outneighbors[0] = LittleLong(inneighbors[0]);
-                       outneighbors[1] = LittleLong(inneighbors[1]);
-                       outneighbors[2] = LittleLong(inneighbors[2]);
-                       outneighbors += 3;
-                       inneighbors += 3;
-               }
-       }
+       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.data_element3s, loadmodel->surfmesh.num_triangles, 0, header.num_vertexes, __FILE__, __LINE__);
 
        // load vertex data
        // this unaligned memory access is safe (LittleFloat reads as bytes)
@@ -3982,7 +3865,7 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                mesh.first_triangle = LittleLong(meshes[i].first_triangle);
                mesh.num_triangles = LittleLong(meshes[i].num_triangles);
 
-               loadmodel->sortedmodelsurfaces[i] = i;
+               loadmodel->modelsurfaces_sorted[i] = i;
                surface = loadmodel->data_surfaces + i;
                surface->texture = loadmodel->data_textures + i;
                surface->num_firsttriangle = mesh.first_triangle;
@@ -3997,15 +3880,10 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        Mod_MakeSortedSurfaces(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];
        if (!vnormal)
                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);
        if (!vnormal || !vtangent)
                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 (!header.ofs_neighbors && loadmodel->surfmesh.data_neighbor3i)
-               Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
        if (!header.ofs_bounds)
                Mod_Alias_CalculateBoundingBox();
 
@@ -4024,13 +3902,4 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        if (joint1       ) Mem_Free(joint1       );joint1        = NULL;
        if (pose         ) Mem_Free(pose         );pose          = NULL;
        if (pose1        ) Mem_Free(pose1        );pose1         = NULL;
-
-       // because shaders can do somewhat unexpected things, check for unusual features now
-       for (i = 0;i < loadmodel->num_textures;i++)
-       {
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_SKY))
-                       mod->DrawSky = R_Q1BSP_DrawSky;
-               if (loadmodel->data_textures[i].basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
-                       mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
-       }
 }