2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 // models.c -- model loading and caching
22 // models are the only shared resource between a client and server running
23 // on the same machine.
29 cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0", "mipmaps model skins so they render faster in the distance and do not display noise artifacts, can cause discoloration of skins if they contain undesirable border colors"};
31 dp_model_t *loadmodel;
33 static mempool_t *mod_mempool;
34 static memexpandablearray_t models;
36 static mempool_t* q3shaders_mem;
37 typedef struct q3shader_hash_entry_s
39 q3shaderinfo_t shader;
40 struct q3shader_hash_entry_s* chain;
41 } q3shader_hash_entry_t;
42 #define Q3SHADER_HASH_SIZE 1021
43 typedef struct q3shader_data_s
45 memexpandablearray_t hash_entries;
46 q3shader_hash_entry_t hash[Q3SHADER_HASH_SIZE];
47 memexpandablearray_t char_ptrs;
49 static q3shader_data_t* q3shader_data;
51 static void mod_start(void)
54 int nummodels = Mem_ExpandableArray_IndexRange(&models);
57 // parse the Q3 shader files
60 for (i = 0;i < nummodels;i++)
61 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
63 Mod_LoadModel(mod, true, false, mod->isworldmodel);
66 static void mod_shutdown(void)
69 int nummodels = Mem_ExpandableArray_IndexRange(&models);
72 for (i = 0;i < nummodels;i++)
73 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && (mod->loaded || mod->mempool))
76 Mem_FreePool (&q3shaders_mem);
79 static void mod_newmap(void)
82 int i, j, k, surfacenum, ssize, tsize;
83 int nummodels = Mem_ExpandableArray_IndexRange(&models);
86 R_SkinFrame_PrepareForPurge();
87 for (i = 0;i < nummodels;i++)
89 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_textures)
91 for (j = 0;j < mod->num_textures;j++)
93 for (k = 0;k < mod->data_textures[j].numskinframes;k++)
94 R_SkinFrame_MarkUsed(mod->data_textures[j].skinframes[k]);
95 for (k = 0;k < mod->data_textures[j].backgroundnumskinframes;k++)
96 R_SkinFrame_MarkUsed(mod->data_textures[j].backgroundskinframes[k]);
102 if (!cl_stainmaps_clearonload.integer)
105 for (i = 0;i < nummodels;i++)
107 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_surfaces)
109 for (surfacenum = 0, surface = mod->data_surfaces;surfacenum < mod->num_surfaces;surfacenum++, surface++)
111 if (surface->lightmapinfo && surface->lightmapinfo->stainsamples)
113 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
114 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
115 memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
116 mod->brushq1.lightmapupdateflags[surfacenum] = true;
128 static void Mod_Print(void);
129 static void Mod_Precache (void);
130 static void Mod_BuildVBOs(void);
133 mod_mempool = Mem_AllocPool("modelinfo", 0, NULL);
134 Mem_ExpandableArray_NewArray(&models, mod_mempool, sizeof(dp_model_t), 16);
140 Cvar_RegisterVariable(&r_mipskins);
141 Cmd_AddCommand ("modellist", Mod_Print, "prints a list of loaded models");
142 Cmd_AddCommand ("modelprecache", Mod_Precache, "load a model");
145 void Mod_RenderInit(void)
147 R_RegisterModule("Models", mod_start, mod_shutdown, mod_newmap);
150 void Mod_UnloadModel (dp_model_t *mod)
152 char name[MAX_QPATH];
153 qboolean isworldmodel;
156 if (developer_loading.integer)
157 Con_Printf("unloading model %s\n", mod->name);
159 strlcpy(name, mod->name, sizeof(name));
160 isworldmodel = mod->isworldmodel;
162 if (mod->surfmesh.ebo3i)
163 R_Mesh_DestroyBufferObject(mod->surfmesh.ebo3i);
164 if (mod->surfmesh.ebo3s)
165 R_Mesh_DestroyBufferObject(mod->surfmesh.ebo3s);
166 if (mod->surfmesh.vbo)
167 R_Mesh_DestroyBufferObject(mod->surfmesh.vbo);
168 // free textures/memory attached to the model
169 R_FreeTexturePool(&mod->texturepool);
170 Mem_FreePool(&mod->mempool);
171 // clear the struct to make it available
172 memset(mod, 0, sizeof(dp_model_t));
173 // restore the fields we want to preserve
174 strlcpy(mod->name, name, sizeof(mod->name));
175 mod->isworldmodel = isworldmodel;
180 void R_Model_Null_Draw(entity_render_t *ent)
192 dp_model_t *Mod_LoadModel(dp_model_t *mod, qboolean crash, qboolean checkdisk, qboolean isworldmodel)
197 fs_offset_t filesize;
201 if (mod->name[0] == '*') // submodel
204 if (!strcmp(mod->name, "null"))
206 if (mod->loaded || mod->mempool)
207 Mod_UnloadModel(mod);
209 if (developer_loading.integer)
210 Con_Printf("loading model %s\n", mod->name);
212 mod->isworldmodel = isworldmodel;
217 VectorClear(mod->normalmins);
218 VectorClear(mod->normalmaxs);
219 VectorClear(mod->yawmins);
220 VectorClear(mod->yawmaxs);
221 VectorClear(mod->rotatedmins);
222 VectorClear(mod->rotatedmaxs);
224 mod->modeldatatypestring = "null";
225 mod->type = mod_null;
226 mod->Draw = R_Model_Null_Draw;
230 // no fatal errors occurred, so this model is ready to use.
239 // even if the model is loaded it still may need reloading...
241 // if the model is a worldmodel and is being referred to as a
242 // non-worldmodel here, then it needs reloading to get rid of the
244 if (mod->isworldmodel != isworldmodel)
247 // if it is not loaded or checkdisk is true we need to calculate the crc
248 if (!mod->loaded || checkdisk)
250 if (checkdisk && mod->loaded)
251 Con_DPrintf("checking model %s\n", mod->name);
252 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
255 crc = CRC_Block((unsigned char *)buf, filesize);
256 // we need to reload the model if the crc does not match
262 // if the model is already loaded and checks passed, just return
270 if (developer_loading.integer)
271 Con_Printf("loading model %s\n", mod->name);
273 // LordHavoc: unload the existing model in this slot (if there is one)
274 if (mod->loaded || mod->mempool)
275 Mod_UnloadModel(mod);
278 mod->isworldmodel = isworldmodel;
281 // errors can prevent the corresponding mod->loaded = true;
284 // default model radius and bounding box (mainly for missing models)
286 VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
287 VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
288 VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
289 VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
290 VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
291 VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
293 // if we're loading a worldmodel, then this is a level change
294 if (mod->isworldmodel)
296 // clear out any stale submodels or worldmodels lying around
297 // if we did this clear before now, an error might abort loading and
298 // leave things in a bad state
299 Mod_RemoveStaleWorldModels(mod);
300 // reload q3 shaders, to make sure they are ready to go for this level
301 // (including any models loaded for this level)
307 char *bufend = (char *)buf + filesize;
309 // all models use memory, so allocate a memory pool
310 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
312 num = LittleLong(*((int *)buf));
313 // call the apropriate loader
315 if (!memcmp(buf, "IDPO", 4)) Mod_IDP0_Load(mod, buf, bufend);
316 else if (!memcmp(buf, "IDP2", 4)) Mod_IDP2_Load(mod, buf, bufend);
317 else if (!memcmp(buf, "IDP3", 4)) Mod_IDP3_Load(mod, buf, bufend);
318 else if (!memcmp(buf, "IDSP", 4)) Mod_IDSP_Load(mod, buf, bufend);
319 else if (!memcmp(buf, "IDS2", 4)) Mod_IDS2_Load(mod, buf, bufend);
320 else if (!memcmp(buf, "IBSP", 4)) Mod_IBSP_Load(mod, buf, bufend);
321 else if (!memcmp(buf, "ZYMOTICMODEL", 12)) Mod_ZYMOTICMODEL_Load(mod, buf, bufend);
322 else if (!memcmp(buf, "DARKPLACESMODEL", 16)) Mod_DARKPLACESMODEL_Load(mod, buf, bufend);
323 else if (!memcmp(buf, "ACTRHEAD", 8)) Mod_PSKMODEL_Load(mod, buf, bufend);
324 else if (strlen(mod->name) >= 4 && !strcmp(mod->name + strlen(mod->name) - 4, ".map")) Mod_MAP_Load(mod, buf, bufend);
325 else if (num == BSPVERSION || num == 30) Mod_Q1BSP_Load(mod, buf, bufend);
326 else Con_Printf("Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
331 // no fatal errors occurred, so this model is ready to use.
336 // LordHavoc: Sys_Error was *ANNOYING*
337 Con_Printf ("Mod_LoadModel: %s not found\n", mod->name);
342 void Mod_ClearUsed(void)
345 int nummodels = Mem_ExpandableArray_IndexRange(&models);
347 for (i = 0;i < nummodels;i++)
348 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
352 void Mod_PurgeUnused(void)
355 int nummodels = Mem_ExpandableArray_IndexRange(&models);
357 for (i = 0;i < nummodels;i++)
359 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
361 Mod_UnloadModel(mod);
362 Mem_ExpandableArray_FreeRecord(&models, mod);
367 // only used during loading!
368 void Mod_RemoveStaleWorldModels(dp_model_t *skip)
371 int nummodels = Mem_ExpandableArray_IndexRange(&models);
373 for (i = 0;i < nummodels;i++)
375 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->isworldmodel && mod->loaded && skip != mod)
377 Mod_UnloadModel(mod);
378 mod->isworldmodel = false;
390 dp_model_t *Mod_FindName(const char *name)
393 int nummodels = Mem_ExpandableArray_IndexRange(&models);
397 Host_Error ("Mod_ForName: NULL name");
399 // search the currently loaded models
400 for (i = 0;i < nummodels;i++)
402 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !strcmp(mod->name, name))
409 // no match found, create a new one
410 mod = Mem_ExpandableArray_AllocRecord(&models);
411 strlcpy(mod->name, name, sizeof(mod->name));
421 Loads in a model for the given name
424 dp_model_t *Mod_ForName(const char *name, qboolean crash, qboolean checkdisk, qboolean isworldmodel)
427 model = Mod_FindName(name);
428 if (model->name[0] != '*' && (!model->loaded || checkdisk))
429 Mod_LoadModel(model, crash, checkdisk, isworldmodel);
437 Reloads all models if they have changed
440 void Mod_Reload(void)
443 int nummodels = Mem_ExpandableArray_IndexRange(&models);
445 for (i = 0;i < nummodels;i++)
446 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
447 Mod_LoadModel(mod, true, true, mod->isworldmodel);
450 unsigned char *mod_base;
453 //=============================================================================
460 static void Mod_Print(void)
463 int nummodels = Mem_ExpandableArray_IndexRange(&models);
466 Con_Print("Loaded models:\n");
467 for (i = 0;i < nummodels;i++)
468 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
469 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
477 static void Mod_Precache(void)
480 Mod_ForName(Cmd_Argv(1), false, true, cl.worldmodel && !strcasecmp(Cmd_Argv(1), cl.worldmodel->name));
482 Con_Print("usage: modelprecache <filename>\n");
485 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
489 used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
490 memset(used, 0, numvertices);
491 for (i = 0;i < numelements;i++)
492 used[elements[i]] = 1;
493 for (i = 0, count = 0;i < numvertices;i++)
494 remapvertices[i] = used[i] ? count++ : -1;
500 // fast way, using an edge hash
501 #define TRIANGLEEDGEHASH 8192
502 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
504 int i, j, p, e1, e2, *n, hashindex, count, match;
506 typedef struct edgehashentry_s
508 struct edgehashentry_s *next;
513 edgehashentry_t *edgehash[TRIANGLEEDGEHASH], *edgehashentries, edgehashentriesbuffer[TRIANGLEEDGEHASH*3], *hash;
514 memset(edgehash, 0, sizeof(edgehash));
515 edgehashentries = edgehashentriesbuffer;
516 // if there are too many triangles for the stack array, allocate larger buffer
517 if (numtriangles > TRIANGLEEDGEHASH)
518 edgehashentries = (edgehashentry_t *)Mem_Alloc(tempmempool, numtriangles * 3 * sizeof(edgehashentry_t));
519 // find neighboring triangles
520 for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
522 for (j = 0, p = 2;j < 3;p = j, j++)
526 // this hash index works for both forward and backward edges
527 hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
528 hash = edgehashentries + i * 3 + j;
529 hash->next = edgehash[hashindex];
530 edgehash[hashindex] = hash;
532 hash->element[0] = e1;
533 hash->element[1] = e2;
536 for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
538 for (j = 0, p = 2;j < 3;p = j, j++)
542 // this hash index works for both forward and backward edges
543 hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
546 for (hash = edgehash[hashindex];hash;hash = hash->next)
548 if (hash->element[0] == e2 && hash->element[1] == e1)
550 if (hash->triangle != i)
551 match = hash->triangle;
554 else if ((hash->element[0] == e1 && hash->element[1] == e2))
557 // detect edges shared by three triangles and make them seams
563 // free the allocated buffer
564 if (edgehashentries != edgehashentriesbuffer)
565 Mem_Free(edgehashentries);
568 // very slow but simple way
569 static int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore)
574 for (i = 0;i < numtriangles;i++, elements += 3)
576 if ((elements[0] == start && elements[1] == end)
577 || (elements[1] == start && elements[2] == end)
578 || (elements[2] == start && elements[0] == end))
584 else if ((elements[1] == start && elements[0] == end)
585 || (elements[2] == start && elements[1] == end)
586 || (elements[0] == start && elements[2] == end))
589 // detect edges shared by three triangles and make them seams
595 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
599 for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
601 n[0] = Mod_FindTriangleWithEdge(elements, numtriangles, e[1], e[0], i);
602 n[1] = Mod_FindTriangleWithEdge(elements, numtriangles, e[2], e[1], i);
603 n[2] = Mod_FindTriangleWithEdge(elements, numtriangles, e[0], e[2], i);
608 void Mod_ValidateElements(int *elements, int numtriangles, int firstvertex, int numverts, const char *filename, int fileline)
610 int i, warned = false, endvertex = firstvertex + numverts;
611 for (i = 0;i < numtriangles * 3;i++)
613 if (elements[i] < firstvertex || elements[i] >= endvertex)
618 Con_Printf("Mod_ValidateElements: out of bounds elements detected at %s:%d\n", filename, fileline);
620 elements[i] = firstvertex;
625 // warning: this is an expensive function!
626 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qboolean areaweighting)
633 memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
634 // process each vertex of each triangle and accumulate the results
635 // use area-averaging, to make triangles with a big area have a bigger
636 // weighting on the vertex normal than triangles with a small area
637 // to do so, just add the 'normals' together (the bigger the area
638 // the greater the length of the normal is
640 for (i = 0; i < numtriangles; i++, element += 3)
643 vertex3f + element[0] * 3,
644 vertex3f + element[1] * 3,
645 vertex3f + element[2] * 3,
650 VectorNormalize(areaNormal);
652 for (j = 0;j < 3;j++)
654 vectorNormal = normal3f + element[j] * 3;
655 vectorNormal[0] += areaNormal[0];
656 vectorNormal[1] += areaNormal[1];
657 vectorNormal[2] += areaNormal[2];
660 // and just normalize the accumulated vertex normal in the end
661 vectorNormal = normal3f + 3 * firstvertex;
662 for (i = 0; i < numvertices; i++, vectorNormal += 3)
663 VectorNormalize(vectorNormal);
666 void Mod_BuildBumpVectors(const float *v0, const float *v1, const float *v2, const float *tc0, const float *tc1, const float *tc2, float *svector3f, float *tvector3f, float *normal3f)
668 float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
669 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
670 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
672 // 6 multiply, 9 subtract
673 VectorSubtract(v1, v0, v10);
674 VectorSubtract(v2, v0, v20);
675 normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
676 normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
677 normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
678 // 12 multiply, 10 subtract
679 tc10[1] = tc1[1] - tc0[1];
680 tc20[1] = tc2[1] - tc0[1];
681 svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
682 svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
683 svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
684 tc10[0] = tc1[0] - tc0[0];
685 tc20[0] = tc2[0] - tc0[0];
686 tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
687 tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
688 tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
689 // 12 multiply, 4 add, 6 subtract
690 f = DotProduct(svector3f, normal3f);
691 svector3f[0] -= f * normal3f[0];
692 svector3f[1] -= f * normal3f[1];
693 svector3f[2] -= f * normal3f[2];
694 f = DotProduct(tvector3f, normal3f);
695 tvector3f[0] -= f * normal3f[0];
696 tvector3f[1] -= f * normal3f[1];
697 tvector3f[2] -= f * normal3f[2];
698 // if texture is mapped the wrong way (counterclockwise), the tangents
699 // have to be flipped, this is detected by calculating a normal from the
700 // two tangents, and seeing if it is opposite the surface normal
701 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
702 CrossProduct(tvector3f, svector3f, tangentcross);
703 if (DotProduct(tangentcross, normal3f) < 0)
705 VectorNegate(svector3f, svector3f);
706 VectorNegate(tvector3f, tvector3f);
710 // warning: this is a very expensive function!
711 void Mod_BuildTextureVectorsFromNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const float *texcoord2f, const float *normal3f, const int *elements, float *svector3f, float *tvector3f, qboolean areaweighting)
714 float sdir[3], tdir[3], normal[3], *sv, *tv;
715 const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
716 float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
719 memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
720 memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
721 // process each vertex of each triangle and accumulate the results
722 for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
724 v0 = vertex3f + e[0] * 3;
725 v1 = vertex3f + e[1] * 3;
726 v2 = vertex3f + e[2] * 3;
727 tc0 = texcoord2f + e[0] * 2;
728 tc1 = texcoord2f + e[1] * 2;
729 tc2 = texcoord2f + e[2] * 2;
731 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
732 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
734 // calculate the edge directions and surface normal
735 // 6 multiply, 9 subtract
736 VectorSubtract(v1, v0, v10);
737 VectorSubtract(v2, v0, v20);
738 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
739 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
740 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
742 // calculate the tangents
743 // 12 multiply, 10 subtract
744 tc10[1] = tc1[1] - tc0[1];
745 tc20[1] = tc2[1] - tc0[1];
746 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
747 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
748 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
749 tc10[0] = tc1[0] - tc0[0];
750 tc20[0] = tc2[0] - tc0[0];
751 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
752 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
753 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
755 // if texture is mapped the wrong way (counterclockwise), the tangents
756 // have to be flipped, this is detected by calculating a normal from the
757 // two tangents, and seeing if it is opposite the surface normal
758 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
759 CrossProduct(tdir, sdir, tangentcross);
760 if (DotProduct(tangentcross, normal) < 0)
762 VectorNegate(sdir, sdir);
763 VectorNegate(tdir, tdir);
768 VectorNormalize(sdir);
769 VectorNormalize(tdir);
771 for (i = 0;i < 3;i++)
773 VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
774 VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
777 // make the tangents completely perpendicular to the surface normal, and
778 // then normalize them
779 // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
780 for (i = 0, sv = svector3f + 3 * firstvertex, tv = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, sv += 3, tv += 3, n += 3)
782 f = -DotProduct(sv, n);
783 VectorMA(sv, f, n, sv);
785 f = -DotProduct(tv, n);
786 VectorMA(tv, f, n, tv);
791 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qboolean lightmapoffsets, qboolean vertexcolors, qboolean neighbors)
794 data = (unsigned char *)Mem_Alloc(mempool, numvertices * (3 + 3 + 3 + 3 + 2 + 2 + (vertexcolors ? 4 : 0)) * sizeof(float) + numvertices * (lightmapoffsets ? 1 : 0) * sizeof(int) + numtriangles * (3 + (neighbors ? 3 : 0)) * sizeof(int) + (numvertices <= 65536 ? numtriangles * sizeof(unsigned short[3]) : 0));
795 loadmodel->surfmesh.num_vertices = numvertices;
796 loadmodel->surfmesh.num_triangles = numtriangles;
797 if (loadmodel->surfmesh.num_vertices)
799 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
800 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
801 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
802 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
803 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
804 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
806 loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
808 loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
810 if (loadmodel->surfmesh.num_triangles)
812 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
814 loadmodel->surfmesh.data_neighbor3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
815 if (loadmodel->surfmesh.num_vertices <= 65536)
816 loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
820 shadowmesh_t *Mod_ShadowMesh_Alloc(mempool_t *mempool, int maxverts, int maxtriangles, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, int light, int neighbors, int expandable)
822 shadowmesh_t *newmesh;
825 size = sizeof(shadowmesh_t);
826 size += maxverts * sizeof(float[3]);
828 size += maxverts * sizeof(float[11]);
829 size += maxtriangles * sizeof(int[3]);
830 if (maxverts <= 65536)
831 size += maxtriangles * sizeof(unsigned short[3]);
833 size += maxtriangles * sizeof(int[3]);
835 size += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *) + maxverts * sizeof(shadowmeshvertexhash_t);
836 data = (unsigned char *)Mem_Alloc(mempool, size);
837 newmesh = (shadowmesh_t *)data;data += sizeof(*newmesh);
838 newmesh->map_diffuse = map_diffuse;
839 newmesh->map_specular = map_specular;
840 newmesh->map_normal = map_normal;
841 newmesh->maxverts = maxverts;
842 newmesh->maxtriangles = maxtriangles;
843 newmesh->numverts = 0;
844 newmesh->numtriangles = 0;
846 newmesh->vertex3f = (float *)data;data += maxverts * sizeof(float[3]);
849 newmesh->svector3f = (float *)data;data += maxverts * sizeof(float[3]);
850 newmesh->tvector3f = (float *)data;data += maxverts * sizeof(float[3]);
851 newmesh->normal3f = (float *)data;data += maxverts * sizeof(float[3]);
852 newmesh->texcoord2f = (float *)data;data += maxverts * sizeof(float[2]);
854 newmesh->element3i = (int *)data;data += maxtriangles * sizeof(int[3]);
857 newmesh->neighbor3i = (int *)data;data += maxtriangles * sizeof(int[3]);
861 newmesh->vertexhashtable = (shadowmeshvertexhash_t **)data;data += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *);
862 newmesh->vertexhashentries = (shadowmeshvertexhash_t *)data;data += maxverts * sizeof(shadowmeshvertexhash_t);
864 if (maxverts <= 65536)
865 newmesh->element3s = (unsigned short *)data;data += maxtriangles * sizeof(unsigned short[3]);
869 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors)
871 shadowmesh_t *newmesh;
872 newmesh = Mod_ShadowMesh_Alloc(mempool, oldmesh->numverts, oldmesh->numtriangles, oldmesh->map_diffuse, oldmesh->map_specular, oldmesh->map_normal, light, neighbors, false);
873 newmesh->numverts = oldmesh->numverts;
874 newmesh->numtriangles = oldmesh->numtriangles;
876 memcpy(newmesh->vertex3f, oldmesh->vertex3f, oldmesh->numverts * sizeof(float[3]));
877 if (newmesh->svector3f && oldmesh->svector3f)
879 memcpy(newmesh->svector3f, oldmesh->svector3f, oldmesh->numverts * sizeof(float[3]));
880 memcpy(newmesh->tvector3f, oldmesh->tvector3f, oldmesh->numverts * sizeof(float[3]));
881 memcpy(newmesh->normal3f, oldmesh->normal3f, oldmesh->numverts * sizeof(float[3]));
882 memcpy(newmesh->texcoord2f, oldmesh->texcoord2f, oldmesh->numverts * sizeof(float[2]));
884 memcpy(newmesh->element3i, oldmesh->element3i, oldmesh->numtriangles * sizeof(int[3]));
885 if (newmesh->neighbor3i && oldmesh->neighbor3i)
886 memcpy(newmesh->neighbor3i, oldmesh->neighbor3i, oldmesh->numtriangles * sizeof(int[3]));
890 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f)
893 shadowmeshvertexhash_t *hash;
894 // this uses prime numbers intentionally
895 hashindex = (unsigned int) (vertex14f[0] * 2003 + vertex14f[1] * 4001 + vertex14f[2] * 7919) % SHADOWMESHVERTEXHASH;
896 for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
898 vnum = (hash - mesh->vertexhashentries);
899 if ((mesh->vertex3f == NULL || (mesh->vertex3f[vnum * 3 + 0] == vertex14f[0] && mesh->vertex3f[vnum * 3 + 1] == vertex14f[1] && mesh->vertex3f[vnum * 3 + 2] == vertex14f[2]))
900 && (mesh->svector3f == NULL || (mesh->svector3f[vnum * 3 + 0] == vertex14f[3] && mesh->svector3f[vnum * 3 + 1] == vertex14f[4] && mesh->svector3f[vnum * 3 + 2] == vertex14f[5]))
901 && (mesh->tvector3f == NULL || (mesh->tvector3f[vnum * 3 + 0] == vertex14f[6] && mesh->tvector3f[vnum * 3 + 1] == vertex14f[7] && mesh->tvector3f[vnum * 3 + 2] == vertex14f[8]))
902 && (mesh->normal3f == NULL || (mesh->normal3f[vnum * 3 + 0] == vertex14f[9] && mesh->normal3f[vnum * 3 + 1] == vertex14f[10] && mesh->normal3f[vnum * 3 + 2] == vertex14f[11]))
903 && (mesh->texcoord2f == NULL || (mesh->texcoord2f[vnum * 2 + 0] == vertex14f[12] && mesh->texcoord2f[vnum * 2 + 1] == vertex14f[13])))
904 return hash - mesh->vertexhashentries;
906 vnum = mesh->numverts++;
907 hash = mesh->vertexhashentries + vnum;
908 hash->next = mesh->vertexhashtable[hashindex];
909 mesh->vertexhashtable[hashindex] = hash;
910 if (mesh->vertex3f) {mesh->vertex3f[vnum * 3 + 0] = vertex14f[0];mesh->vertex3f[vnum * 3 + 1] = vertex14f[1];mesh->vertex3f[vnum * 3 + 2] = vertex14f[2];}
911 if (mesh->svector3f) {mesh->svector3f[vnum * 3 + 0] = vertex14f[3];mesh->svector3f[vnum * 3 + 1] = vertex14f[4];mesh->svector3f[vnum * 3 + 2] = vertex14f[5];}
912 if (mesh->tvector3f) {mesh->tvector3f[vnum * 3 + 0] = vertex14f[6];mesh->tvector3f[vnum * 3 + 1] = vertex14f[7];mesh->tvector3f[vnum * 3 + 2] = vertex14f[8];}
913 if (mesh->normal3f) {mesh->normal3f[vnum * 3 + 0] = vertex14f[9];mesh->normal3f[vnum * 3 + 1] = vertex14f[10];mesh->normal3f[vnum * 3 + 2] = vertex14f[11];}
914 if (mesh->texcoord2f) {mesh->texcoord2f[vnum * 2 + 0] = vertex14f[12];mesh->texcoord2f[vnum * 2 + 1] = vertex14f[13];}
918 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f)
920 if (mesh->numtriangles == 0)
922 // set the properties on this empty mesh to be more favorable...
923 // (note: this case only occurs for the first triangle added to a new mesh chain)
924 mesh->map_diffuse = map_diffuse;
925 mesh->map_specular = map_specular;
926 mesh->map_normal = map_normal;
928 while (mesh->map_diffuse != map_diffuse || mesh->map_specular != map_specular || mesh->map_normal != map_normal || mesh->numverts + 3 > mesh->maxverts || mesh->numtriangles + 1 > mesh->maxtriangles)
930 if (mesh->next == NULL)
931 mesh->next = Mod_ShadowMesh_Alloc(mempool, max(mesh->maxverts, 300), max(mesh->maxtriangles, 100), map_diffuse, map_specular, map_normal, mesh->svector3f != NULL, mesh->neighbor3i != NULL, true);
934 mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 0);
935 mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 1);
936 mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 2);
937 mesh->numtriangles++;
940 void Mod_ShadowMesh_AddMesh(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, const float *vertex3f, const float *svector3f, const float *tvector3f, const float *normal3f, const float *texcoord2f, int numtris, const int *element3i)
943 float vbuf[3*14], *v;
944 memset(vbuf, 0, sizeof(vbuf));
945 for (i = 0;i < numtris;i++)
947 for (j = 0, v = vbuf;j < 3;j++, v += 14)
952 v[0] = vertex3f[e * 3 + 0];
953 v[1] = vertex3f[e * 3 + 1];
954 v[2] = vertex3f[e * 3 + 2];
958 v[3] = svector3f[e * 3 + 0];
959 v[4] = svector3f[e * 3 + 1];
960 v[5] = svector3f[e * 3 + 2];
964 v[6] = tvector3f[e * 3 + 0];
965 v[7] = tvector3f[e * 3 + 1];
966 v[8] = tvector3f[e * 3 + 2];
970 v[9] = normal3f[e * 3 + 0];
971 v[10] = normal3f[e * 3 + 1];
972 v[11] = normal3f[e * 3 + 2];
976 v[12] = texcoord2f[e * 2 + 0];
977 v[13] = texcoord2f[e * 2 + 1];
980 Mod_ShadowMesh_AddTriangle(mempool, mesh, map_diffuse, map_specular, map_normal, vbuf);
984 shadowmesh_t *Mod_ShadowMesh_Begin(mempool_t *mempool, int maxverts, int maxtriangles, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, int light, int neighbors, int expandable)
986 return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles, map_diffuse, map_specular, map_normal, light, neighbors, expandable);
989 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh)
991 if (!gl_support_arb_vertex_buffer_object)
994 // element buffer is easy because it's just one array
995 if (mesh->numtriangles)
998 mesh->ebo3s = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, mesh->element3s, mesh->numtriangles * sizeof(unsigned short[3]), "shadowmesh");
1000 mesh->ebo3i = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, mesh->element3i, mesh->numtriangles * sizeof(unsigned int[3]), "shadowmesh");
1003 // vertex buffer is several arrays and we put them in the same buffer
1005 // is this wise? the texcoordtexture2f array is used with dynamic
1006 // vertex/svector/tvector/normal when rendering animated models, on the
1007 // other hand animated models don't use a lot of vertices anyway...
1013 mesh->vbooffset_vertex3f = size;if (mesh->vertex3f ) size += mesh->numverts * sizeof(float[3]);
1014 mesh->vbooffset_svector3f = size;if (mesh->svector3f ) size += mesh->numverts * sizeof(float[3]);
1015 mesh->vbooffset_tvector3f = size;if (mesh->tvector3f ) size += mesh->numverts * sizeof(float[3]);
1016 mesh->vbooffset_normal3f = size;if (mesh->normal3f ) size += mesh->numverts * sizeof(float[3]);
1017 mesh->vbooffset_texcoord2f = size;if (mesh->texcoord2f ) size += mesh->numverts * sizeof(float[2]);
1018 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
1019 if (mesh->vertex3f ) memcpy(mem + mesh->vbooffset_vertex3f , mesh->vertex3f , mesh->numverts * sizeof(float[3]));
1020 if (mesh->svector3f ) memcpy(mem + mesh->vbooffset_svector3f , mesh->svector3f , mesh->numverts * sizeof(float[3]));
1021 if (mesh->tvector3f ) memcpy(mem + mesh->vbooffset_tvector3f , mesh->tvector3f , mesh->numverts * sizeof(float[3]));
1022 if (mesh->normal3f ) memcpy(mem + mesh->vbooffset_normal3f , mesh->normal3f , mesh->numverts * sizeof(float[3]));
1023 if (mesh->texcoord2f ) memcpy(mem + mesh->vbooffset_texcoord2f , mesh->texcoord2f , mesh->numverts * sizeof(float[2]));
1024 mesh->vbo = R_Mesh_CreateStaticBufferObject(GL_ARRAY_BUFFER_ARB, mem, size, "shadowmesh");
1029 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, qboolean light, qboolean neighbors, qboolean createvbo)
1031 shadowmesh_t *mesh, *newmesh, *nextmesh;
1032 // reallocate meshs to conserve space
1033 for (mesh = firstmesh, firstmesh = NULL;mesh;mesh = nextmesh)
1035 nextmesh = mesh->next;
1036 if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1038 newmesh = Mod_ShadowMesh_ReAlloc(mempool, mesh, light, neighbors);
1039 newmesh->next = firstmesh;
1040 firstmesh = newmesh;
1041 if (newmesh->element3s)
1044 for (i = 0;i < newmesh->numtriangles*3;i++)
1045 newmesh->element3s[i] = newmesh->element3i[i];
1048 Mod_ShadowMesh_CreateVBOs(newmesh);
1055 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1059 vec3_t nmins, nmaxs, ncenter, temp;
1060 float nradius2, dist2, *v;
1064 for (mesh = firstmesh;mesh;mesh = mesh->next)
1066 if (mesh == firstmesh)
1068 VectorCopy(mesh->vertex3f, nmins);
1069 VectorCopy(mesh->vertex3f, nmaxs);
1071 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1073 if (nmins[0] > v[0]) nmins[0] = v[0];if (nmaxs[0] < v[0]) nmaxs[0] = v[0];
1074 if (nmins[1] > v[1]) nmins[1] = v[1];if (nmaxs[1] < v[1]) nmaxs[1] = v[1];
1075 if (nmins[2] > v[2]) nmins[2] = v[2];if (nmaxs[2] < v[2]) nmaxs[2] = v[2];
1078 // calculate center and radius
1079 ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1080 ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1081 ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1083 for (mesh = firstmesh;mesh;mesh = mesh->next)
1085 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1087 VectorSubtract(v, ncenter, temp);
1088 dist2 = DotProduct(temp, temp);
1089 if (nradius2 < dist2)
1095 VectorCopy(nmins, mins);
1097 VectorCopy(nmaxs, maxs);
1099 VectorCopy(ncenter, center);
1101 *radius = sqrt(nradius2);
1104 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1106 shadowmesh_t *nextmesh;
1107 for (;mesh;mesh = nextmesh)
1110 R_Mesh_DestroyBufferObject(mesh->ebo3i);
1112 R_Mesh_DestroyBufferObject(mesh->ebo3s);
1114 R_Mesh_DestroyBufferObject(mesh->vbo);
1115 nextmesh = mesh->next;
1120 void Mod_GetTerrainVertex3fTexCoord2fFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int ix, int iy, float *vertex3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1125 if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1126 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1129 Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1130 Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1131 texcoord2f[0] = tc[0];
1132 texcoord2f[1] = tc[1];
1135 void Mod_GetTerrainVertexFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int ix, int iy, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1137 float vup[3], vdown[3], vleft[3], vright[3];
1138 float tcup[3], tcdown[3], tcleft[3], tcright[3];
1139 float sv[3], tv[3], nl[3];
1140 Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1141 Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1142 Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1143 Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1144 Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1145 Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1146 Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1147 VectorAdd(svector3f, sv, svector3f);
1148 VectorAdd(tvector3f, tv, tvector3f);
1149 VectorAdd(normal3f, nl, normal3f);
1150 Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1151 VectorAdd(svector3f, sv, svector3f);
1152 VectorAdd(tvector3f, tv, tvector3f);
1153 VectorAdd(normal3f, nl, normal3f);
1154 Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1155 VectorAdd(svector3f, sv, svector3f);
1156 VectorAdd(tvector3f, tv, tvector3f);
1157 VectorAdd(normal3f, nl, normal3f);
1160 void Mod_ConstructTerrainPatchFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int x1, int y1, int width, int height, int *element3i, int *neighbor3i, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1162 int x, y, ix, iy, *e;
1164 for (y = 0;y < height;y++)
1166 for (x = 0;x < width;x++)
1168 e[0] = (y + 1) * (width + 1) + (x + 0);
1169 e[1] = (y + 0) * (width + 1) + (x + 0);
1170 e[2] = (y + 1) * (width + 1) + (x + 1);
1171 e[3] = (y + 0) * (width + 1) + (x + 0);
1172 e[4] = (y + 0) * (width + 1) + (x + 1);
1173 e[5] = (y + 1) * (width + 1) + (x + 1);
1177 Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
1178 for (y = 0, iy = y1;y < height + 1;y++, iy++)
1179 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1180 Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1183 q3wavefunc_t Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1185 if (!strcasecmp(s, "sin")) return Q3WAVEFUNC_SIN;
1186 if (!strcasecmp(s, "square")) return Q3WAVEFUNC_SQUARE;
1187 if (!strcasecmp(s, "triangle")) return Q3WAVEFUNC_TRIANGLE;
1188 if (!strcasecmp(s, "sawtooth")) return Q3WAVEFUNC_SAWTOOTH;
1189 if (!strcasecmp(s, "inversesawtooth")) return Q3WAVEFUNC_INVERSESAWTOOTH;
1190 if (!strcasecmp(s, "noise")) return Q3WAVEFUNC_NOISE;
1191 Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1192 return Q3WAVEFUNC_NONE;
1195 static void Q3Shaders_Clear()
1197 /* Just clear out everything... */
1198 Mem_FreePool (&q3shaders_mem);
1199 /* ...and alloc the structs again. */
1200 q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1201 q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1202 sizeof (q3shader_data_t));
1203 Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1204 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1205 Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1206 q3shaders_mem, sizeof (char**), 256);
1209 static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
1211 unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1212 q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1213 q3shader_hash_entry_t* lastEntry = NULL;
1214 while (entry != NULL)
1216 if (strcasecmp (entry->shader.name, shader->name) == 0)
1218 Con_Printf("Shader '%s' already defined\n", shader->name);
1222 entry = entry->chain;
1226 if (lastEntry->shader.name[0] != 0)
1229 q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1230 Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1232 while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1233 lastEntry->chain = newEntry;
1234 newEntry->chain = NULL;
1235 lastEntry = newEntry;
1237 /* else: head of chain, in hash entry array */
1240 memcpy (&entry->shader, shader, sizeof (q3shaderinfo_t));
1243 extern cvar_t r_picmipworld;
1244 void Mod_LoadQ3Shaders(void)
1251 q3shaderinfo_t shader;
1252 q3shaderinfo_layer_t *layer;
1254 char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1258 search = FS_Search("scripts/*.shader", true, false);
1261 for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1263 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1266 while (COM_ParseToken_QuakeC(&text, false))
1268 memset (&shader, 0, sizeof(shader));
1269 shader.reflectmin = 0;
1270 shader.reflectmax = 1;
1271 shader.refractfactor = 1;
1272 Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1273 shader.reflectfactor = 1;
1274 Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1275 shader.r_water_wateralpha = 1;
1277 strlcpy(shader.name, com_token, sizeof(shader.name));
1278 if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1280 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1283 while (COM_ParseToken_QuakeC(&text, false))
1285 if (!strcasecmp(com_token, "}"))
1287 if (!strcasecmp(com_token, "{"))
1289 static q3shaderinfo_layer_t dummy;
1290 if (shader.numlayers < Q3SHADER_MAXLAYERS)
1292 layer = shader.layers + shader.numlayers++;
1296 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1297 memset(&dummy, 0, sizeof(dummy));
1300 layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1301 layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1302 layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1303 layer->blendfunc[0] = GL_ONE;
1304 layer->blendfunc[1] = GL_ZERO;
1305 while (COM_ParseToken_QuakeC(&text, false))
1307 if (!strcasecmp(com_token, "}"))
1309 if (!strcasecmp(com_token, "\n"))
1312 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1314 if (j < TEXTURE_MAXFRAMES + 4)
1316 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1317 numparameters = j + 1;
1319 if (!COM_ParseToken_QuakeC(&text, true))
1322 for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1323 parameter[j][0] = 0;
1324 if (developer.integer >= 100)
1326 Con_Printf("%s %i: ", shader.name, shader.numlayers - 1);
1327 for (j = 0;j < numparameters;j++)
1328 Con_Printf(" %s", parameter[j]);
1331 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1333 if (numparameters == 2)
1335 if (!strcasecmp(parameter[1], "add"))
1337 layer->blendfunc[0] = GL_ONE;
1338 layer->blendfunc[1] = GL_ONE;
1340 else if (!strcasecmp(parameter[1], "filter"))
1342 layer->blendfunc[0] = GL_DST_COLOR;
1343 layer->blendfunc[1] = GL_ZERO;
1345 else if (!strcasecmp(parameter[1], "blend"))
1347 layer->blendfunc[0] = GL_SRC_ALPHA;
1348 layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1351 else if (numparameters == 3)
1354 for (k = 0;k < 2;k++)
1356 if (!strcasecmp(parameter[k+1], "GL_ONE"))
1357 layer->blendfunc[k] = GL_ONE;
1358 else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1359 layer->blendfunc[k] = GL_ZERO;
1360 else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1361 layer->blendfunc[k] = GL_SRC_COLOR;
1362 else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1363 layer->blendfunc[k] = GL_SRC_ALPHA;
1364 else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1365 layer->blendfunc[k] = GL_DST_COLOR;
1366 else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1367 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1368 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1369 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1370 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1371 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1372 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1373 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1374 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1375 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1377 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1381 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1382 layer->alphatest = true;
1383 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1385 if (!strcasecmp(parameter[0], "clampmap"))
1386 layer->clampmap = true;
1387 layer->numframes = 1;
1388 layer->framerate = 1;
1389 layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1390 &q3shader_data->char_ptrs);
1391 layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1392 if (!strcasecmp(parameter[1], "$lightmap"))
1393 shader.lighting = true;
1395 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1398 layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1399 layer->framerate = atof(parameter[1]);
1400 layer->texturename = Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1401 for (i = 0;i < layer->numframes;i++)
1402 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1404 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1407 for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1408 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1409 if (!strcasecmp(parameter[1], "identity")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1410 else if (!strcasecmp(parameter[1], "const")) layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1411 else if (!strcasecmp(parameter[1], "entity")) layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1412 else if (!strcasecmp(parameter[1], "exactvertex")) layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1413 else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1414 else if (!strcasecmp(parameter[1], "lightingdiffuse")) layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1415 else if (!strcasecmp(parameter[1], "oneminusentity")) layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1416 else if (!strcasecmp(parameter[1], "oneminusvertex")) layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1417 else if (!strcasecmp(parameter[1], "vertex")) layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1418 else if (!strcasecmp(parameter[1], "wave"))
1420 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1421 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1422 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1423 layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1425 else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1427 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1430 for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1431 layer->alphagen.parms[i] = atof(parameter[i+2]);
1432 if (!strcasecmp(parameter[1], "identity")) layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1433 else if (!strcasecmp(parameter[1], "const")) layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1434 else if (!strcasecmp(parameter[1], "entity")) layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1435 else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1436 else if (!strcasecmp(parameter[1], "oneminusentity")) layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1437 else if (!strcasecmp(parameter[1], "oneminusvertex")) layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1438 else if (!strcasecmp(parameter[1], "portal")) layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1439 else if (!strcasecmp(parameter[1], "vertex")) layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1440 else if (!strcasecmp(parameter[1], "wave"))
1442 layer->alphagen.alphagen = Q3RGBGEN_WAVE;
1443 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1444 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1445 layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1447 else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1449 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1452 // observed values: tcgen environment
1453 // no other values have been observed in real shaders
1454 for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1455 layer->tcgen.parms[i] = atof(parameter[i+2]);
1456 if (!strcasecmp(parameter[1], "base")) layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1457 else if (!strcasecmp(parameter[1], "texture")) layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1458 else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1459 else if (!strcasecmp(parameter[1], "lightmap")) layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1460 else if (!strcasecmp(parameter[1], "vector")) layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1461 else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1463 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1470 // tcmod stretch sin # # # #
1471 // tcmod stretch triangle # # # #
1472 // tcmod transform # # # # # #
1473 // tcmod turb # # # #
1474 // tcmod turb sin # # # # (this is bogus)
1475 // no other values have been observed in real shaders
1476 for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1477 if (!layer->tcmods[tcmodindex].tcmod)
1479 if (tcmodindex < Q3MAXTCMODS)
1481 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1482 layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1483 if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1484 else if (!strcasecmp(parameter[1], "rotate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1485 else if (!strcasecmp(parameter[1], "scale")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1486 else if (!strcasecmp(parameter[1], "scroll")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1487 else if (!strcasecmp(parameter[1], "page")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1488 else if (!strcasecmp(parameter[1], "stretch"))
1490 layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1491 layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1492 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1493 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1495 else if (!strcasecmp(parameter[1], "transform")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1496 else if (!strcasecmp(parameter[1], "turb")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1497 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1500 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1502 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1503 if (!strcasecmp(com_token, "}"))
1506 if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1507 shader.lighting = true;
1508 if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1510 if (layer == shader.layers + 0)
1512 // vertex controlled transparency
1513 shader.vertexalpha = true;
1517 // multilayer terrain shader or similar
1518 shader.textureblendalpha = true;
1521 layer->texflags = TEXF_ALPHA | TEXF_PRECACHE;
1522 if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
1523 layer->texflags |= TEXF_MIPMAP;
1524 if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
1525 layer->texflags |= TEXF_PICMIP | TEXF_COMPRESS;
1526 if (layer->clampmap)
1527 layer->texflags |= TEXF_CLAMP;
1531 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1533 if (j < TEXTURE_MAXFRAMES + 4)
1535 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1536 numparameters = j + 1;
1538 if (!COM_ParseToken_QuakeC(&text, true))
1541 for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1542 parameter[j][0] = 0;
1543 if (fileindex == 0 && !strcasecmp(com_token, "}"))
1545 if (developer.integer >= 100)
1547 Con_Printf("%s: ", shader.name);
1548 for (j = 0;j < numparameters;j++)
1549 Con_Printf(" %s", parameter[j]);
1552 if (numparameters < 1)
1554 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
1556 if (!strcasecmp(parameter[1], "alphashadow"))
1557 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
1558 else if (!strcasecmp(parameter[1], "areaportal"))
1559 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
1560 else if (!strcasecmp(parameter[1], "botclip"))
1561 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
1562 else if (!strcasecmp(parameter[1], "clusterportal"))
1563 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
1564 else if (!strcasecmp(parameter[1], "detail"))
1565 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
1566 else if (!strcasecmp(parameter[1], "donotenter"))
1567 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
1568 else if (!strcasecmp(parameter[1], "dust"))
1569 shader.surfaceparms |= Q3SURFACEPARM_DUST;
1570 else if (!strcasecmp(parameter[1], "hint"))
1571 shader.surfaceparms |= Q3SURFACEPARM_HINT;
1572 else if (!strcasecmp(parameter[1], "fog"))
1573 shader.surfaceparms |= Q3SURFACEPARM_FOG;
1574 else if (!strcasecmp(parameter[1], "lava"))
1575 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
1576 else if (!strcasecmp(parameter[1], "lightfilter"))
1577 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
1578 else if (!strcasecmp(parameter[1], "lightgrid"))
1579 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
1580 else if (!strcasecmp(parameter[1], "metalsteps"))
1581 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
1582 else if (!strcasecmp(parameter[1], "nodamage"))
1583 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
1584 else if (!strcasecmp(parameter[1], "nodlight"))
1585 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
1586 else if (!strcasecmp(parameter[1], "nodraw"))
1587 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
1588 else if (!strcasecmp(parameter[1], "nodrop"))
1589 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
1590 else if (!strcasecmp(parameter[1], "noimpact"))
1591 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
1592 else if (!strcasecmp(parameter[1], "nolightmap"))
1593 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
1594 else if (!strcasecmp(parameter[1], "nomarks"))
1595 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
1596 else if (!strcasecmp(parameter[1], "nomipmaps"))
1597 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1598 else if (!strcasecmp(parameter[1], "nonsolid"))
1599 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
1600 else if (!strcasecmp(parameter[1], "origin"))
1601 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
1602 else if (!strcasecmp(parameter[1], "playerclip"))
1603 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
1604 else if (!strcasecmp(parameter[1], "sky"))
1605 shader.surfaceparms |= Q3SURFACEPARM_SKY;
1606 else if (!strcasecmp(parameter[1], "slick"))
1607 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
1608 else if (!strcasecmp(parameter[1], "slime"))
1609 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
1610 else if (!strcasecmp(parameter[1], "structural"))
1611 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
1612 else if (!strcasecmp(parameter[1], "trans"))
1613 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
1614 else if (!strcasecmp(parameter[1], "water"))
1615 shader.surfaceparms |= Q3SURFACEPARM_WATER;
1616 else if (!strcasecmp(parameter[1], "pointlight"))
1617 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
1618 else if (!strcasecmp(parameter[1], "antiportal"))
1619 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
1621 Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
1623 else if (!strcasecmp(parameter[0], "dpshadow"))
1624 shader.dpshadow = true;
1625 else if (!strcasecmp(parameter[0], "dpnoshadow"))
1626 shader.dpnoshadow = true;
1627 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
1629 // some q3 skies don't have the sky parm set
1630 shader.surfaceparms |= Q3SURFACEPARM_SKY;
1631 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
1633 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
1635 // some q3 skies don't have the sky parm set
1636 shader.surfaceparms |= Q3SURFACEPARM_SKY;
1637 if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
1638 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
1640 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
1642 if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
1643 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
1645 else if (!strcasecmp(parameter[0], "nomipmaps"))
1646 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1647 else if (!strcasecmp(parameter[0], "nopicmip"))
1648 shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
1649 else if (!strcasecmp(parameter[0], "polygonoffset"))
1650 shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
1651 else if (!strcasecmp(parameter[0], "dp_refract") && numparameters >= 5)
1653 shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
1654 shader.refractfactor = atof(parameter[1]);
1655 Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
1657 else if (!strcasecmp(parameter[0], "dp_reflect") && numparameters >= 6)
1659 shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
1660 shader.reflectfactor = atof(parameter[1]);
1661 Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
1663 else if (!strcasecmp(parameter[0], "dp_water") && numparameters >= 12)
1665 shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
1666 shader.reflectmin = atof(parameter[1]);
1667 shader.reflectmax = atof(parameter[2]);
1668 shader.refractfactor = atof(parameter[3]);
1669 shader.reflectfactor = atof(parameter[4]);
1670 Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
1671 Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
1672 shader.r_water_wateralpha = atof(parameter[11]);
1674 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
1677 for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
1678 if (!shader.deforms[deformindex].deform)
1680 if (deformindex < Q3MAXDEFORMS)
1682 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
1683 shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
1684 if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
1685 else if (!strcasecmp(parameter[1], "autosprite" )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
1686 else if (!strcasecmp(parameter[1], "autosprite2" )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
1687 else if (!strcasecmp(parameter[1], "text0" )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
1688 else if (!strcasecmp(parameter[1], "text1" )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
1689 else if (!strcasecmp(parameter[1], "text2" )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
1690 else if (!strcasecmp(parameter[1], "text3" )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
1691 else if (!strcasecmp(parameter[1], "text4" )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
1692 else if (!strcasecmp(parameter[1], "text5" )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
1693 else if (!strcasecmp(parameter[1], "text6" )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
1694 else if (!strcasecmp(parameter[1], "text7" )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
1695 else if (!strcasecmp(parameter[1], "bulge" )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
1696 else if (!strcasecmp(parameter[1], "normal" )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
1697 else if (!strcasecmp(parameter[1], "wave" ))
1699 shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
1700 shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
1701 for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
1702 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
1704 else if (!strcasecmp(parameter[1], "move" ))
1706 shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
1707 shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
1708 for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
1709 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
1714 // pick the primary layer to render with
1715 if (shader.numlayers)
1717 shader.backgroundlayer = -1;
1718 shader.primarylayer = 0;
1719 // if lightmap comes first this is definitely an ordinary texture
1720 // if the first two layers have the correct blendfuncs and use vertex alpha, it is a blended terrain shader
1721 if ((shader.layers[shader.primarylayer].texturename != NULL)
1722 && !strcasecmp(shader.layers[shader.primarylayer].texturename[0], "$lightmap"))
1724 shader.backgroundlayer = -1;
1725 shader.primarylayer = 1;
1727 else if (shader.numlayers >= 2
1728 && shader.layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
1729 && (shader.layers[0].blendfunc[0] == GL_ONE && shader.layers[0].blendfunc[1] == GL_ZERO && !shader.layers[0].alphatest)
1730 && ((shader.layers[1].blendfunc[0] == GL_SRC_ALPHA && shader.layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
1731 || (shader.layers[1].blendfunc[0] == GL_ONE && shader.layers[1].blendfunc[1] == GL_ZERO && shader.layers[1].alphatest)))
1733 // terrain blending or other effects
1734 shader.backgroundlayer = 0;
1735 shader.primarylayer = 1;
1738 // fix up multiple reflection types
1739 if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
1740 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION);
1742 Q3Shader_AddToHash (&shader);
1748 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
1750 unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
1751 q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1752 while (entry != NULL)
1754 if (strcasecmp (entry->shader.name, name) == 0)
1755 return &entry->shader;
1756 entry = entry->chain;
1761 qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags)
1764 qboolean success = true;
1765 q3shaderinfo_t *shader;
1768 strlcpy(texture->name, name, sizeof(texture->name));
1769 shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
1772 if (developer_loading.integer)
1773 Con_Printf("%s: loaded shader for %s\n", loadmodel->name, name);
1774 texture->surfaceparms = shader->surfaceparms;
1775 texture->textureflags = shader->textureflags;
1777 // allow disabling of picmip or compression by defaulttexflags
1778 if(!(defaulttexflags & TEXF_PICMIP))
1779 texture->textureflags &= ~TEXF_PICMIP;
1780 if(!(defaulttexflags & TEXF_COMPRESS))
1781 texture->textureflags &= ~TEXF_COMPRESS;
1783 texture->basematerialflags = 0;
1784 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
1786 texture->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
1787 if (shader->skyboxname[0])
1789 // quake3 seems to append a _ to the skybox name, so this must do so as well
1790 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
1793 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
1794 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1796 texture->basematerialflags = MATERIALFLAG_WALL;
1797 if (shader->layers[0].alphatest)
1798 texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
1799 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1800 texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
1801 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
1802 texture->biaspolygonoffset -= 2;
1803 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
1804 texture->basematerialflags |= MATERIALFLAG_REFRACTION;
1805 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
1806 texture->basematerialflags |= MATERIALFLAG_REFLECTION;
1807 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
1808 texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
1809 texture->customblendfunc[0] = GL_ONE;
1810 texture->customblendfunc[1] = GL_ZERO;
1811 if (shader->numlayers > 0)
1813 texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
1814 texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
1816 Q3 shader blendfuncs actually used in the game (* = supported by DP)
1817 * additive GL_ONE GL_ONE
1818 additive weird GL_ONE GL_SRC_ALPHA
1819 additive weird 2 GL_ONE GL_ONE_MINUS_SRC_ALPHA
1820 * alpha GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
1821 alpha inverse GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
1822 brighten GL_DST_COLOR GL_ONE
1823 brighten GL_ONE GL_SRC_COLOR
1824 brighten weird GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
1825 brighten weird 2 GL_DST_COLOR GL_SRC_ALPHA
1826 * modulate GL_DST_COLOR GL_ZERO
1827 * modulate GL_ZERO GL_SRC_COLOR
1828 modulate inverse GL_ZERO GL_ONE_MINUS_SRC_COLOR
1829 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
1830 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
1831 * modulate x2 GL_DST_COLOR GL_SRC_COLOR
1832 * no blend GL_ONE GL_ZERO
1833 nothing GL_ZERO GL_ONE
1835 // if not opaque, figure out what blendfunc to use
1836 if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
1838 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
1839 texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1840 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
1841 texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1842 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
1843 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1845 texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1848 if (!shader->lighting)
1849 texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
1850 if (shader->primarylayer >= 0)
1852 q3shaderinfo_layer_t* primarylayer = shader->layers + shader->primarylayer;
1853 // copy over many primarylayer parameters
1854 texture->rgbgen = primarylayer->rgbgen;
1855 texture->alphagen = primarylayer->alphagen;
1856 texture->tcgen = primarylayer->tcgen;
1857 memcpy(texture->tcmods, primarylayer->tcmods, sizeof(texture->tcmods));
1858 // load the textures
1859 texture->numskinframes = primarylayer->numframes;
1860 texture->skinframerate = primarylayer->framerate;
1861 for (j = 0;j < primarylayer->numframes;j++)
1863 if(cls.state == ca_dedicated)
1865 texture->skinframes[j] = NULL;
1867 else if (!(texture->skinframes[j] = R_SkinFrame_LoadExternal(primarylayer->texturename[j], primarylayer->texflags, false)))
1869 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"^7 (frame %i) for shader ^2\"%s\"\n", loadmodel->name, primarylayer->texturename[j], j, texture->name);
1870 texture->skinframes[j] = R_SkinFrame_LoadMissing();
1874 if (shader->backgroundlayer >= 0)
1876 q3shaderinfo_layer_t* backgroundlayer = shader->layers + shader->backgroundlayer;
1877 texture->backgroundnumskinframes = backgroundlayer->numframes;
1878 texture->backgroundskinframerate = backgroundlayer->framerate;
1879 for (j = 0;j < backgroundlayer->numframes;j++)
1881 if(cls.state == ca_dedicated)
1883 texture->skinframes[j] = NULL;
1885 else if (!(texture->backgroundskinframes[j] = R_SkinFrame_LoadExternal(backgroundlayer->texturename[j], backgroundlayer->texflags, false)))
1887 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"^7 (background frame %i) for shader ^2\"%s\"\n", loadmodel->name, backgroundlayer->texturename[j], j, texture->name);
1888 texture->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
1892 if (shader->dpshadow)
1893 texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
1894 if (shader->dpnoshadow)
1895 texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
1896 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
1897 texture->reflectmin = shader->reflectmin;
1898 texture->reflectmax = shader->reflectmax;
1899 texture->refractfactor = shader->refractfactor;
1900 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
1901 texture->reflectfactor = shader->reflectfactor;
1902 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
1903 texture->r_water_wateralpha = shader->r_water_wateralpha;
1905 else if (!strcmp(texture->name, "noshader") || !texture->name[0])
1907 if (developer.integer >= 100)
1908 Con_Printf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", loadmodel->name, name);
1909 texture->surfaceparms = 0;
1911 else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
1913 if (developer.integer >= 100)
1914 Con_Printf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", loadmodel->name, name);
1915 texture->surfaceparms = 0;
1916 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1920 if (developer.integer >= 100)
1921 Con_Printf("^1%s:^7 No shader found for texture ^3\"%s\"\n", loadmodel->name, texture->name);
1922 texture->surfaceparms = 0;
1923 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
1924 texture->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1925 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
1926 texture->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
1928 texture->basematerialflags |= MATERIALFLAG_WALL;
1929 texture->numskinframes = 1;
1930 if(cls.state == ca_dedicated)
1932 texture->skinframes[0] = NULL;
1939 if ((texture->skinframes[0] = R_SkinFrame_LoadExternal_CheckAlpha(texture->name, defaulttexflags, false, &has_alpha)))
1941 if(has_alpha && (defaulttexflags & TEXF_ALPHA))
1942 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1949 if (!success && warnmissing)
1950 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", loadmodel->name, texture->name);
1953 // init the animation variables
1954 texture->currentframe = texture;
1955 if (texture->numskinframes < 1)
1956 texture->numskinframes = 1;
1957 if (!texture->skinframes[0])
1958 texture->skinframes[0] = R_SkinFrame_LoadMissing();
1959 texture->currentskinframe = texture->skinframes[0];
1960 texture->backgroundcurrentskinframe = texture->backgroundskinframes[0];
1964 skinfile_t *Mod_LoadSkinFiles(void)
1966 int i, words, line, wordsoverflow;
1969 skinfile_t *skinfile = NULL, *first = NULL;
1970 skinfileitem_t *skinfileitem;
1971 char word[10][MAX_QPATH];
1975 U_bodyBox,models/players/Legoman/BikerA2.tga
1976 U_RArm,models/players/Legoman/BikerA1.tga
1977 U_LArm,models/players/Legoman/BikerA1.tga
1978 U_armor,common/nodraw
1979 U_sword,common/nodraw
1980 U_shield,common/nodraw
1981 U_homb,common/nodraw
1982 U_backpack,common/nodraw
1983 U_colcha,common/nodraw
1988 memset(word, 0, sizeof(word));
1989 for (i = 0;i < MAX_SKINS && (data = text = (char *)FS_LoadFile(va("%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
1991 // If it's the first file we parse
1992 if (skinfile == NULL)
1994 skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
1999 skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2000 skinfile = skinfile->next;
2002 skinfile->next = NULL;
2004 for(line = 0;;line++)
2007 if (!COM_ParseToken_QuakeC(&data, true))
2009 if (!strcmp(com_token, "\n"))
2012 wordsoverflow = false;
2016 strlcpy(word[words++], com_token, sizeof (word[0]));
2018 wordsoverflow = true;
2020 while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2023 Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: line with too many statements, skipping\n", loadmodel->name, i, line);
2026 // words is always >= 1
2027 if (!strcmp(word[0], "replace"))
2031 if (developer_loading.integer)
2032 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2033 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2034 skinfileitem->next = skinfile->items;
2035 skinfile->items = skinfileitem;
2036 strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2037 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2040 Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: wrong number of parameters to command \"%s\", see documentation in DP_GFX_SKINFILES extension in dpextensions.qc\n", loadmodel->name, i, line, word[0]);
2042 else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2044 // tag name, like "tag_weapon,"
2045 // not used for anything (not even in Quake3)
2047 else if (words >= 2 && !strcmp(word[1], ","))
2049 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2050 if (developer_loading.integer)
2051 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2052 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2053 skinfileitem->next = skinfile->items;
2054 skinfile->items = skinfileitem;
2055 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2056 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2059 Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: does not look like tag or mesh specification, or replace command, see documentation in DP_GFX_SKINFILES extension in dpextensions.qc\n", loadmodel->name, i, line);
2064 loadmodel->numskins = i;
2068 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2071 skinfileitem_t *skinfileitem, *nextitem;
2072 for (;skinfile;skinfile = next)
2074 next = skinfile->next;
2075 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2077 nextitem = skinfileitem->next;
2078 Mem_Free(skinfileitem);
2084 int Mod_CountSkinFiles(skinfile_t *skinfile)
2087 for (i = 0;skinfile;skinfile = skinfile->next, i++);
2091 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2094 double isnap = 1.0 / snap;
2095 for (i = 0;i < numvertices*numcomponents;i++)
2096 vertices[i] = floor(vertices[i]*isnap)*snap;
2099 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2101 int i, outtriangles;
2102 float d, edgedir[3], temp[3];
2103 // a degenerate triangle is one with no width (thickness, surface area)
2104 // these are characterized by having all 3 points colinear (along a line)
2105 // or having two points identical
2106 for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2108 // calculate first edge
2109 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir);
2110 if (VectorLength2(edgedir) < 0.0001f)
2111 continue; // degenerate first edge (no length)
2112 VectorNormalize(edgedir);
2113 // check if third point is on the edge (colinear)
2114 d = -DotProduct(vertex3f + inelement3i[2] * 3, edgedir);
2115 VectorMA(vertex3f + inelement3i[2] * 3, d, edgedir, temp);
2116 if (VectorLength2(temp) < 0.0001f)
2117 continue; // third point colinear with first edge
2118 // valid triangle (no colinear points, no duplicate points)
2119 VectorCopy(inelement3i, outelement3i);
2123 return outtriangles;
2126 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2129 int firstvertex, lastvertex;
2130 if (numelements > 0 && elements)
2132 firstvertex = lastvertex = elements[0];
2133 for (i = 1;i < numelements;i++)
2136 firstvertex = min(firstvertex, e);
2137 lastvertex = max(lastvertex, e);
2141 firstvertex = lastvertex = 0;
2142 if (firstvertexpointer)
2143 *firstvertexpointer = firstvertex;
2144 if (lastvertexpointer)
2145 *lastvertexpointer = lastvertex;
2148 static void Mod_BuildVBOs(void)
2150 if (!gl_support_arb_vertex_buffer_object)
2153 // element buffer is easy because it's just one array
2154 if (loadmodel->surfmesh.num_triangles)
2156 if (loadmodel->surfmesh.data_element3s)
2159 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2160 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2161 loadmodel->surfmesh.ebo3s = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles * sizeof(unsigned short[3]), loadmodel->name);
2164 loadmodel->surfmesh.ebo3i = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles * sizeof(unsigned int[3]), loadmodel->name);
2167 // vertex buffer is several arrays and we put them in the same buffer
2169 // is this wise? the texcoordtexture2f array is used with dynamic
2170 // vertex/svector/tvector/normal when rendering animated models, on the
2171 // other hand animated models don't use a lot of vertices anyway...
2172 if (loadmodel->surfmesh.num_vertices)
2177 loadmodel->surfmesh.vbooffset_vertex3f = size;if (loadmodel->surfmesh.data_vertex3f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2178 loadmodel->surfmesh.vbooffset_svector3f = size;if (loadmodel->surfmesh.data_svector3f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2179 loadmodel->surfmesh.vbooffset_tvector3f = size;if (loadmodel->surfmesh.data_tvector3f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2180 loadmodel->surfmesh.vbooffset_normal3f = size;if (loadmodel->surfmesh.data_normal3f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2181 loadmodel->surfmesh.vbooffset_texcoordtexture2f = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2182 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2183 loadmodel->surfmesh.vbooffset_lightmapcolor4f = size;if (loadmodel->surfmesh.data_lightmapcolor4f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
2184 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
2185 if (loadmodel->surfmesh.data_vertex3f ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f , loadmodel->surfmesh.data_vertex3f , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2186 if (loadmodel->surfmesh.data_svector3f ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f , loadmodel->surfmesh.data_svector3f , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2187 if (loadmodel->surfmesh.data_tvector3f ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f , loadmodel->surfmesh.data_tvector3f , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2188 if (loadmodel->surfmesh.data_normal3f ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f , loadmodel->surfmesh.data_normal3f , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2189 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2190 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2191 if (loadmodel->surfmesh.data_lightmapcolor4f ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f , loadmodel->surfmesh.data_lightmapcolor4f , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
2192 loadmodel->surfmesh.vbo = R_Mesh_CreateStaticBufferObject(GL_ARRAY_BUFFER_ARB, mem, size, loadmodel->name);