model_alias.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   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.
   8
   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.
  12
  13 See the GNU General Public License for more details.
  14
  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.
  18
  19 */
  20
  21 #include "quakedef.h"
  22 #include "image.h"
  23 #include "r_shadow.h"
  24
  25 void Mod_AliasInit (void)
  26 {
  27 }
  28
  29 static void Mod_CalcAliasModelBBoxes (void)
  30 {
  31         int vnum, meshnum;
  32         float dist, yawradius, radius;
  33         aliasmesh_t *mesh;
  34         float *v;
  35         VectorClear(loadmodel->normalmins);
  36         VectorClear(loadmodel->normalmaxs);
  37         yawradius = 0;
  38         radius = 0;
  39         for (meshnum = 0, mesh = loadmodel->alias.aliasdata_meshes;meshnum < loadmodel->alias.aliasnum_meshes;meshnum++, mesh++)
  40         {
  41                 for (vnum = 0, v = mesh->data_aliasvertex3f;vnum < mesh->num_vertices * mesh->num_frames;vnum++, v += 3)
  42                 {
  43                         if (loadmodel->normalmins[0] > v[0]) loadmodel->normalmins[0] = v[0];
  44                         if (loadmodel->normalmins[1] > v[1]) loadmodel->normalmins[1] = v[1];
  45                         if (loadmodel->normalmins[2] > v[2]) loadmodel->normalmins[2] = v[2];
  46                         if (loadmodel->normalmaxs[0] < v[0]) loadmodel->normalmaxs[0] = v[0];
  47                         if (loadmodel->normalmaxs[1] < v[1]) loadmodel->normalmaxs[1] = v[1];
  48                         if (loadmodel->normalmaxs[2] < v[2]) loadmodel->normalmaxs[2] = v[2];
  49                         dist = v[0] * v[0] + v[1] * v[1];
  50                         if (yawradius < dist)
  51                                 yawradius = dist;
  52                         dist += v[2] * v[2];
  53                         if (radius < dist)
  54                                 radius = dist;
  55                 }
  56         }
  57         radius = sqrt(radius);
  58         yawradius = sqrt(yawradius);
  59         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -yawradius;
  60         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = yawradius;
  61         loadmodel->yawmins[2] = loadmodel->normalmins[2];
  62         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
  63         loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -radius;
  64         loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = radius;
  65         loadmodel->radius = radius;
  66         loadmodel->radius2 = radius * radius;
  67 }
  68
  69 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int *vertremap)
  70 {
  71         int i, j;
  72         vec3_t temp;
  73         for (i = 0;i < inverts;i++)
  74         {
  75                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
  76                         continue;
  77                 temp[0] = v[i].v[0] * scale[0] + translate[0];
  78                 temp[1] = v[i].v[1] * scale[1] + translate[1];
  79                 temp[2] = v[i].v[2] * scale[2] + translate[2];
  80                 j = vertremap[i]; // not onseam
  81                 if (j >= 0)
  82                         VectorCopy(temp, out3f + j * 3);
  83                 j = vertremap[i+inverts]; // onseam
  84                 if (j >= 0)
  85                         VectorCopy(temp, out3f + j * 3);
  86         }
  87 }
  88
  89 static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, vec3_t scale, vec3_t translate, int *vertremap)
  90 {
  91         int i, f, pose, groupframes;
  92         float interval;
  93         daliasframetype_t *pframetype;
  94         daliasframe_t *pinframe;
  95         daliasgroup_t *group;
  96         daliasinterval_t *intervals;
  97         animscene_t *scene;
  98         pose = 0;
  99         scene = loadmodel->animscenes;
 100         for (f = 0;f < loadmodel->numframes;f++)
 101         {
 102                 pframetype = (daliasframetype_t *)datapointer;
 103                 datapointer += sizeof(daliasframetype_t);
 104                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 105                 {
 106                         // a single frame is still treated as a group
 107                         interval = 0.1f;
 108                         groupframes = 1;
 109                 }
 110                 else
 111                 {
 112                         // read group header
 113                         group = (daliasgroup_t *)datapointer;
 114                         datapointer += sizeof(daliasgroup_t);
 115                         groupframes = LittleLong (group->numframes);
 116
 117                         // intervals (time per frame)
 118                         intervals = (daliasinterval_t *)datapointer;
 119                         datapointer += sizeof(daliasinterval_t) * groupframes;
 120
 121                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 122                         if (interval < 0.01f)
 123                                 Host_Error("Mod_MDL_LoadFrames: invalid interval");
 124                 }
 125
 126                 // get scene name from first frame
 127                 pinframe = (daliasframe_t *)datapointer;
 128
 129                 strcpy(scene->name, pinframe->name);
 130                 scene->firstframe = pose;
 131                 scene->framecount = groupframes;
 132                 scene->framerate = 1.0f / interval;
 133                 scene->loop = true;
 134                 scene++;
 135
 136                 // read frames
 137                 for (i = 0;i < groupframes;i++)
 138                 {
 139                         pinframe = (daliasframe_t *)datapointer;
 140                         datapointer += sizeof(daliasframe_t);
 141                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, vertremap);
 142                         Mod_BuildTextureVectorsAndNormals(loadmodel->alias.aliasdata_meshes->num_vertices, loadmodel->alias.aliasdata_meshes->num_triangles, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_texcoord2f, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->data_aliassvector3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliastvector3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliasnormal3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3);
 143                         datapointer += sizeof(trivertx_t) * inverts;
 144                         pose++;
 145                 }
 146         }
 147 }
 148
 149 aliaslayer_t mod_alias_layersbuffer[16]; // 7 currently used
 150 void Mod_BuildAliasSkinFromSkinFrame(aliasskin_t *skin, skinframe_t *skinframe)
 151 {
 152         aliaslayer_t *layer;
 153
 154         memset(&mod_alias_layersbuffer, 0, sizeof(mod_alias_layersbuffer));
 155         layer = mod_alias_layersbuffer;
 156         layer->flags = ALIASLAYER_SPECULAR;
 157         layer->texture = skinframe->gloss;
 158         layer->nmap = skinframe->nmap;
 159         layer++;
 160         if (skinframe->merged != NULL)
 161         {
 162                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_COLORMAPPED;
 163                 layer->texture = skinframe->merged;
 164                 layer->nmap = skinframe->nmap;
 165                 layer++;
 166         }
 167         if (skinframe->base != NULL)
 168         {
 169                 layer->flags = ALIASLAYER_DIFFUSE;
 170                 if (skinframe->merged != NULL)
 171                         layer->flags |= ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED;
 172                 layer->texture = skinframe->base;
 173                 layer->nmap = skinframe->nmap;
 174                 layer++;
 175         }
 176         if (skinframe->pants != NULL)
 177         {
 178                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_COLORMAP_PANTS;
 179                 layer->texture = skinframe->pants;
 180                 layer->nmap = skinframe->nmap;
 181                 layer++;
 182         }
 183         if (skinframe->shirt != NULL)
 184         {
 185                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_COLORMAP_SHIRT;
 186                 layer->texture = skinframe->shirt;
 187                 layer->nmap = skinframe->nmap;
 188                 layer++;
 189         }
 190
 191         if (skinframe->glow != NULL)
 192         {
 193                 layer->flags = 0;
 194                 layer->texture = skinframe->glow;
 195                 layer++;
 196         }
 197
 198         layer->flags = ALIASLAYER_FOG | ALIASLAYER_FORCEDRAW_IF_FIRSTPASS;
 199         layer->texture = skinframe->fog;
 200         layer++;
 201
 202         skin->flags = 0;
 203         // fog texture only exists if some pixels are transparent...
 204         if (skinframe->fog != NULL)
 205                 skin->flags |= ALIASSKIN_TRANSPARENT;
 206
 207         skin->num_layers = layer - mod_alias_layersbuffer;
 208         skin->data_layers = Mem_Alloc(loadmodel->mempool, skin->num_layers * sizeof(aliaslayer_t));
 209         memcpy(skin->data_layers, mod_alias_layersbuffer, skin->num_layers * sizeof(aliaslayer_t));
 210 }
 211
 212 void Mod_BuildAliasSkinsFromSkinFiles(aliasskin_t *skin, skinfile_t *skinfile, char *name)
 213 {
 214         int i;
 215         skinfileitem_t *skinfileitem;
 216         skinframe_t tempskinframe;
 217         if (skinfile)
 218         {
 219                 for (i = 0;skinfile;skinfile = skinfile->next, i++, skin++)
 220                 {
 221                         for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = skinfileitem->next)
 222                         {
 223                                 if (!strcmp(skinfileitem->name, name))
 224                                 {
 225                                         memset(&tempskinframe, 0, sizeof(tempskinframe));
 226                                         Mod_LoadSkinFrame(&tempskinframe, skinfileitem->replacement, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true);
 227                                         Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 228                                         break;
 229                                 }
 230                         }
 231                 }
 232         }
 233         else
 234         {
 235                 Mod_LoadSkinFrame(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true);
 236                 Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 237         }
 238 }
 239
 240 #define BOUNDI(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%d exceeds %d - %d)\n", loadmodel->name, VALUE, MIN, MAX);
 241 #define BOUNDF(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%f exceeds %f - %f)\n", loadmodel->name, VALUE, MIN, MAX);
 242 extern void R_Model_Alias_Draw(entity_render_t *ent);
 243 extern void R_Model_Alias_DrawFakeShadow(entity_render_t *ent);
 244 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 245 extern void R_Model_Alias_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz);
 246 void Mod_IDP0_Load(model_t *mod, void *buffer)
 247 {
 248         int i, j, version, totalskins, skinwidth, skinheight, groupframes, groupskins, numverts;
 249         float scales, scalet, scale[3], translate[3], interval;
 250         mdl_t *pinmodel;
 251         stvert_t *pinstverts;
 252         dtriangle_t *pintriangles;
 253         daliasskintype_t *pinskintype;
 254         daliasskingroup_t *pinskingroup;
 255         daliasskininterval_t *pinskinintervals;
 256         daliasframetype_t *pinframetype;
 257         daliasgroup_t *pinframegroup;
 258         qbyte *datapointer, *startframes, *startskins;
 259         char name[MAX_QPATH];
 260         skinframe_t tempskinframe;
 261         animscene_t *tempskinscenes;
 262         aliasskin_t *tempaliasskins;
 263         float *vertst;
 264         int *vertonseam, *vertremap;
 265         skinfile_t *skinfiles;
 266
 267         datapointer = buffer;
 268         pinmodel = (mdl_t *)datapointer;
 269         datapointer += sizeof(mdl_t);
 270
 271         version = LittleLong (pinmodel->version);
 272         if (version != ALIAS_VERSION)
 273                 Host_Error ("%s has wrong version number (%i should be %i)",
 274                                  loadmodel->name, version, ALIAS_VERSION);
 275
 276         loadmodel->type = mod_alias;
 277         loadmodel->alias.aliastype = ALIASTYPE_ALIAS;
 278         loadmodel->DrawSky = NULL;
 279         loadmodel->Draw = R_Model_Alias_Draw;
 280         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 281         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 282         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 283
 284         loadmodel->alias.aliasnum_meshes = 1;
 285         loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, sizeof(aliasmesh_t));
 286
 287         loadmodel->numskins = LittleLong(pinmodel->numskins);
 288         BOUNDI(loadmodel->numskins,0,256);
 289         skinwidth = LittleLong (pinmodel->skinwidth);
 290         BOUNDI(skinwidth,0,4096);
 291         skinheight = LittleLong (pinmodel->skinheight);
 292         BOUNDI(skinheight,0,4096);
 293         numverts = LittleLong(pinmodel->numverts);
 294         BOUNDI(numverts,0,65536);
 295         loadmodel->alias.aliasdata_meshes->num_triangles = LittleLong(pinmodel->numtris);
 296         BOUNDI(loadmodel->alias.aliasdata_meshes->num_triangles,0,65536 / 3); // max elements limit, rather than max triangles limit
 297         loadmodel->numframes = LittleLong(pinmodel->numframes);
 298         BOUNDI(loadmodel->numframes,0,65536);
 299         loadmodel->synctype = LittleLong (pinmodel->synctype);
 300         BOUNDI(loadmodel->synctype,0,2);
 301         loadmodel->flags = LittleLong (pinmodel->flags);
 302
 303         for (i = 0;i < 3;i++)
 304         {
 305                 scale[i] = LittleFloat (pinmodel->scale[i]);
 306                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 307         }
 308
 309         startskins = datapointer;
 310         totalskins = 0;
 311         for (i = 0;i < loadmodel->numskins;i++)
 312         {
 313                 pinskintype = (daliasskintype_t *)datapointer;
 314                 datapointer += sizeof(daliasskintype_t);
 315                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 316                         groupskins = 1;
 317                 else
 318                 {
 319                         pinskingroup = (daliasskingroup_t *)datapointer;
 320                         datapointer += sizeof(daliasskingroup_t);
 321                         groupskins = LittleLong(pinskingroup->numskins);
 322                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 323                 }
 324
 325                 for (j = 0;j < groupskins;j++)
 326                 {
 327                         datapointer += skinwidth * skinheight;
 328                         totalskins++;
 329                 }
 330         }
 331
 332         pinstverts = (stvert_t *)datapointer;
 333         datapointer += sizeof(stvert_t) * numverts;
 334
 335         pintriangles = (dtriangle_t *)datapointer;
 336         datapointer += sizeof(dtriangle_t) * loadmodel->alias.aliasdata_meshes->num_triangles;
 337
 338         startframes = datapointer;
 339         loadmodel->alias.aliasdata_meshes->num_frames = 0;
 340         for (i = 0;i < loadmodel->numframes;i++)
 341         {
 342                 pinframetype = (daliasframetype_t *)datapointer;
 343                 datapointer += sizeof(daliasframetype_t);
 344                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 345                         groupframes = 1;
 346                 else
 347                 {
 348                         pinframegroup = (daliasgroup_t *)datapointer;
 349                         datapointer += sizeof(daliasgroup_t);
 350                         groupframes = LittleLong(pinframegroup->numframes);
 351                         datapointer += sizeof(daliasinterval_t) * groupframes;
 352                 }
 353
 354                 for (j = 0;j < groupframes;j++)
 355                 {
 356                         datapointer += sizeof(daliasframe_t);
 357                         datapointer += sizeof(trivertx_t) * numverts;
 358                         loadmodel->alias.aliasdata_meshes->num_frames++;
 359                 }
 360         }
 361
 362         // store texture coordinates into temporary array, they will be stored
 363         // after usage is determined (triangle data)
 364         vertst = Mem_Alloc(tempmempool, numverts * 2 * sizeof(float[2]));
 365         vertremap = Mem_Alloc(tempmempool, numverts * 3 * sizeof(int));
 366         vertonseam = vertremap + numverts * 2;
 367
 368         scales = 1.0 / skinwidth;
 369         scalet = 1.0 / skinheight;
 370         for (i = 0;i < numverts;i++)
 371         {
 372                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 373                 vertst[i*2+0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 374                 vertst[i*2+1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 375                 vertst[(i+numverts)*2+0] = vertst[i*2+0] + 0.5;
 376                 vertst[(i+numverts)*2+1] = vertst[i*2+1];
 377         }
 378
 379 // load triangle data
 380         loadmodel->alias.aliasdata_meshes->data_element3i = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->alias.aliasdata_meshes->num_triangles);
 381
 382         // read the triangle elements
 383         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
 384                 for (j = 0;j < 3;j++)
 385                         loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] = LittleLong(pintriangles[i].vertindex[j]);
 386         // validate (note numverts is used because this is the original data)
 387         Mod_ValidateElements(loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles, numverts, __FILE__, __LINE__);
 388         // now butcher the elements according to vertonseam and tri->facesfront
 389         // and then compact the vertex set to remove duplicates
 390         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
 391                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 392                         for (j = 0;j < 3;j++)
 393                                 if (vertonseam[loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j]])
 394                                         loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] += numverts;
 395         // count the usage
 396         // (this uses vertremap to count usage to save some memory)
 397         for (i = 0;i < numverts*2;i++)
 398                 vertremap[i] = 0;
 399         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles*3;i++)
 400                 vertremap[loadmodel->alias.aliasdata_meshes->data_element3i[i]]++;
 401         // build remapping table and compact array
 402         loadmodel->alias.aliasdata_meshes->num_vertices = 0;
 403         for (i = 0;i < numverts*2;i++)
 404         {
 405                 if (vertremap[i])
 406                 {
 407                         vertremap[i] = loadmodel->alias.aliasdata_meshes->num_vertices;
 408                         vertst[loadmodel->alias.aliasdata_meshes->num_vertices*2+0] = vertst[i*2+0];
 409                         vertst[loadmodel->alias.aliasdata_meshes->num_vertices*2+1] = vertst[i*2+1];
 410                         loadmodel->alias.aliasdata_meshes->num_vertices++;
 411                 }
 412                 else
 413                         vertremap[i] = -1; // not used at all
 414         }
 415         // remap the elements to the new vertex set
 416         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles * 3;i++)
 417                 loadmodel->alias.aliasdata_meshes->data_element3i[i] = vertremap[loadmodel->alias.aliasdata_meshes->data_element3i[i]];
 418         // store the texture coordinates
 419         loadmodel->alias.aliasdata_meshes->data_texcoord2f = Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * loadmodel->alias.aliasdata_meshes->num_vertices);
 420         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_vertices;i++)
 421         {
 422                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+0] = vertst[i*2+0];
 423                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+1] = vertst[i*2+1];
 424         }
 425
 426 // load the frames
 427         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 428         loadmodel->alias.aliasdata_meshes->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, sizeof(float[4][3]) * loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices);
 429         loadmodel->alias.aliasdata_meshes->data_aliassvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices * 3 * 1;
 430         loadmodel->alias.aliasdata_meshes->data_aliastvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices * 3 * 2;
 431         loadmodel->alias.aliasdata_meshes->data_aliasnormal3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices * 3 * 3;
 432         Mod_MDL_LoadFrames (startframes, numverts, scale, translate, vertremap);
 433         loadmodel->alias.aliasdata_meshes->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
 434         Mod_BuildTriangleNeighbors(loadmodel->alias.aliasdata_meshes->data_neighbor3i, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles);
 435         Mod_CalcAliasModelBBoxes();
 436
 437         Mem_Free(vertst);
 438         Mem_Free(vertremap);
 439
 440         // load the skins
 441         if ((skinfiles = Mod_LoadSkinFiles()))
 442         {
 443                 loadmodel->alias.aliasdata_meshes->num_skins = totalskins = loadmodel->numskins = Mod_CountSkinFiles(skinfiles);
 444                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 445                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->alias.aliasdata_meshes->data_skins, skinfiles, "default");
 446                 Mod_FreeSkinFiles(skinfiles);
 447                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 448                 for (i = 0;i < loadmodel->numskins;i++)
 449                 {
 450                         loadmodel->skinscenes[i].firstframe = i;
 451                         loadmodel->skinscenes[i].framecount = 1;
 452                         loadmodel->skinscenes[i].loop = true;
 453                         loadmodel->skinscenes[i].framerate = 10;
 454                 }
 455         }
 456         else
 457         {
 458                 loadmodel->alias.aliasdata_meshes->num_skins = totalskins;
 459                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 460                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 461                 totalskins = 0;
 462                 datapointer = startskins;
 463                 for (i = 0;i < loadmodel->numskins;i++)
 464                 {
 465                         pinskintype = (daliasskintype_t *)datapointer;
 466                         datapointer += sizeof(daliasskintype_t);
 467
 468                         if (pinskintype->type == ALIAS_SKIN_SINGLE)
 469                         {
 470                                 groupskins = 1;
 471                                 interval = 0.1f;
 472                         }
 473                         else
 474                         {
 475                                 pinskingroup = (daliasskingroup_t *)datapointer;
 476                                 datapointer += sizeof(daliasskingroup_t);
 477
 478                                 groupskins = LittleLong (pinskingroup->numskins);
 479
 480                                 pinskinintervals = (daliasskininterval_t *)datapointer;
 481                                 datapointer += sizeof(daliasskininterval_t) * groupskins;
 482
 483                                 interval = LittleFloat(pinskinintervals[0].interval);
 484                                 if (interval < 0.01f)
 485                                         Host_Error("Mod_IDP0_Load: invalid interval\n");
 486                         }
 487
 488                         sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 489                         loadmodel->skinscenes[i].firstframe = totalskins;
 490                         loadmodel->skinscenes[i].framecount = groupskins;
 491                         loadmodel->skinscenes[i].framerate = 1.0f / interval;
 492                         loadmodel->skinscenes[i].loop = true;
 493
 494                         for (j = 0;j < groupskins;j++)
 495                         {
 496                                 if (groupskins > 1)
 497                                         sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 498                                 else
 499                                         sprintf (name, "%s_%i", loadmodel->name, i);
 500                                 if (!Mod_LoadSkinFrame(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true))
 501                                         Mod_LoadSkinFrame_Internal(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true, (qbyte *)datapointer, skinwidth, skinheight);
 502                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + totalskins, &tempskinframe);
 503                                 datapointer += skinwidth * skinheight;
 504                                 totalskins++;
 505                         }
 506                 }
 507                 // check for skins that don't exist in the model, but do exist as external images
 508                 // (this was added because yummyluv kept pestering me about support for it)
 509                 while (Mod_LoadSkinFrame(&tempskinframe, va("%s_%i", loadmodel->name, loadmodel->numskins), (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true))
 510                 {
 511                         // expand the arrays to make room
 512                         tempskinscenes = loadmodel->skinscenes;
 513                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 514                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 515                         Mem_Free(tempskinscenes);
 516
 517                         tempaliasskins = loadmodel->alias.aliasdata_meshes->data_skins;
 518                         loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(aliasskin_t));
 519                         memcpy(loadmodel->alias.aliasdata_meshes->data_skins, tempaliasskins, totalskins * sizeof(aliasskin_t));
 520                         Mem_Free(tempaliasskins);
 521
 522                         // store the info about the new skin
 523                         Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + totalskins, &tempskinframe);
 524                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 525                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 526                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 527                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 528                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 529
 530                         //increase skin counts
 531                         loadmodel->alias.aliasdata_meshes->num_skins++;
 532                         loadmodel->numskins++;
 533                         totalskins++;
 534                 }
 535         }
 536 }
 537
 538 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int numverts, int *vertremap)
 539 {
 540         int i;
 541         trivertx_t *in;
 542         for (i = 0;i < numverts;i++, out3f += 3)
 543         {
 544                 in = v + vertremap[i];
 545                 out3f[0] = in->v[0] * scale[0] + translate[0];
 546                 out3f[1] = in->v[1] * scale[1] + translate[1];
 547                 out3f[2] = in->v[2] * scale[2] + translate[2];
 548         }
 549 }
 550
 551 void Mod_IDP2_Load(model_t *mod, void *buffer)
 552 {
 553         int i, j, k, hashindex, num, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end, numverts;
 554         float *stverts, s, t, scale[3], translate[3];
 555         md2_t *pinmodel;
 556         qbyte *base, *datapointer;
 557         md2frame_t *pinframe;
 558         char *inskin;
 559         md2triangle_t *intri;
 560         unsigned short *inst;
 561         struct md2verthash_s
 562         {
 563                 struct md2verthash_s *next;
 564                 int xyz;
 565                 float st[2];
 566         }
 567         *hash, **md2verthash, *md2verthashdata;
 568         skinframe_t tempskinframe;
 569         skinfile_t *skinfiles;
 570
 571         pinmodel = buffer;
 572         base = buffer;
 573
 574         version = LittleLong (pinmodel->version);
 575         if (version != MD2ALIAS_VERSION)
 576                 Host_Error ("%s has wrong version number (%i should be %i)",
 577                         loadmodel->name, version, MD2ALIAS_VERSION);
 578
 579         loadmodel->type = mod_alias;
 580         loadmodel->alias.aliastype = ALIASTYPE_ALIAS;
 581         loadmodel->DrawSky = NULL;
 582         loadmodel->Draw = R_Model_Alias_Draw;
 583         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 584         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 585         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 586
 587         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > (65536 / 3))
 588                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 589         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > 65536)
 590                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 591         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > 65536)
 592                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 593         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > 256)
 594                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 595
 596         end = LittleLong(pinmodel->ofs_end);
 597         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
 598                 Host_Error ("%s is not a valid model", loadmodel->name);
 599         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
 600                 Host_Error ("%s is not a valid model", loadmodel->name);
 601         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
 602                 Host_Error ("%s is not a valid model", loadmodel->name);
 603         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
 604                 Host_Error ("%s is not a valid model", loadmodel->name);
 605         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
 606                 Host_Error ("%s is not a valid model", loadmodel->name);
 607
 608         loadmodel->alias.aliasnum_meshes = 1;
 609         loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, sizeof(aliasmesh_t));
 610
 611         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 612         numxyz = LittleLong(pinmodel->num_xyz);
 613         numst = LittleLong(pinmodel->num_st);
 614         loadmodel->alias.aliasdata_meshes->num_triangles = LittleLong(pinmodel->num_tris);
 615         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 616         loadmodel->alias.aliasdata_meshes->num_frames = loadmodel->numframes;
 617         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 618
 619         loadmodel->flags = 0; // there are no MD2 flags
 620         loadmodel->synctype = ST_RAND;
 621
 622         // load the skins
 623         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 624         if ((skinfiles = Mod_LoadSkinFiles()))
 625         {
 626                 loadmodel->alias.aliasdata_meshes->num_skins = loadmodel->numskins = Mod_CountSkinFiles(skinfiles);
 627                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 628                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->alias.aliasdata_meshes->data_skins, skinfiles, "default");
 629                 Mod_FreeSkinFiles(skinfiles);
 630         }
 631         else if (loadmodel->numskins)
 632         {
 633                 // skins found (most likely not a player model)
 634                 loadmodel->alias.aliasdata_meshes->num_skins = loadmodel->numskins;
 635                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 636                 for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
 637                 {
 638                         Mod_LoadSkinFrame(&tempskinframe, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true);
 639                         Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + i, &tempskinframe);
 640                 }
 641         }
 642         else
 643         {
 644                 // no skins (most likely a player model)
 645                 loadmodel->numskins = 1;
 646                 loadmodel->alias.aliasdata_meshes->num_skins = loadmodel->numskins;
 647                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 648         }
 649
 650         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 651         for (i = 0;i < loadmodel->numskins;i++)
 652         {
 653                 loadmodel->skinscenes[i].firstframe = i;
 654                 loadmodel->skinscenes[i].framecount = 1;
 655                 loadmodel->skinscenes[i].loop = true;
 656                 loadmodel->skinscenes[i].framerate = 10;
 657         }
 658
 659         // load the triangles and stvert data
 660         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 661         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 662         skinwidth = LittleLong(pinmodel->skinwidth);
 663         skinheight = LittleLong(pinmodel->skinheight);
 664
 665         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 666         s = 1.0f / skinwidth;
 667         t = 1.0f / skinheight;
 668         for (i = 0;i < numst;i++)
 669         {
 670                 j = (unsigned short) LittleShort(inst[i*2+0]);
 671                 k = (unsigned short) LittleShort(inst[i*2+1]);
 672                 if (j >= skinwidth || k >= skinheight)
 673                 {
 674                         Mem_Free(stverts);
 675                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
 676                 }
 677                 stverts[i*2+0] = j * s;
 678                 stverts[i*2+1] = k * t;
 679         }
 680
 681         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 682         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->alias.aliasdata_meshes->num_triangles * 3 * sizeof(*hash));
 683         // swap the triangle list
 684         num = 0;
 685         loadmodel->alias.aliasdata_meshes->data_element3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
 686         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
 687         {
 688                 for (j = 0;j < 3;j++)
 689                 {
 690                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 691                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 692                         if (xyz >= numxyz || st >= numst)
 693                         {
 694                                 Mem_Free(md2verthash);
 695                                 Mem_Free(md2verthashdata);
 696                                 Mem_Free(stverts);
 697                                 if (xyz >= numxyz)
 698                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
 699                                 if (st >= numst)
 700                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
 701                         }
 702                         s = stverts[st*2+0];
 703                         t = stverts[st*2+1];
 704                         hashindex = (xyz * 17 + st) & 255;
 705                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 706                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 707                                         break;
 708                         if (hash == NULL)
 709                         {
 710                                 hash = md2verthashdata + num++;
 711                                 hash->xyz = xyz;
 712                                 hash->st[0] = s;
 713                                 hash->st[1] = t;
 714                                 hash->next = md2verthash[hashindex];
 715                                 md2verthash[hashindex] = hash;
 716                         }
 717                         loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] = (hash - md2verthashdata);
 718                 }
 719         }
 720
 721         Mem_Free(stverts);
 722
 723         numverts = num;
 724         loadmodel->alias.aliasdata_meshes->num_vertices = numverts;
 725         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 726         loadmodel->alias.aliasdata_meshes->data_texcoord2f = Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
 727         for (i = 0;i < num;i++)
 728         {
 729                 hash = md2verthashdata + i;
 730                 vertremap[i] = hash->xyz;
 731                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+0] = hash->st[0];
 732                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+1] = hash->st[1];
 733         }
 734
 735         Mem_Free(md2verthash);
 736         Mem_Free(md2verthashdata);
 737
 738         // load the frames
 739         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 740         loadmodel->alias.aliasdata_meshes->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, numverts * loadmodel->alias.aliasdata_meshes->num_frames * sizeof(float[4][3]));
 741         loadmodel->alias.aliasdata_meshes->data_aliassvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->alias.aliasdata_meshes->num_frames * 3 * 1;
 742         loadmodel->alias.aliasdata_meshes->data_aliastvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->alias.aliasdata_meshes->num_frames * 3 * 2;
 743         loadmodel->alias.aliasdata_meshes->data_aliasnormal3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->alias.aliasdata_meshes->num_frames * 3 * 3;
 744         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_frames;i++)
 745         {
 746                 pinframe = (md2frame_t *)datapointer;
 747                 datapointer += sizeof(md2frame_t);
 748                 for (j = 0;j < 3;j++)
 749                 {
 750                         scale[j] = LittleFloat(pinframe->scale[j]);
 751                         translate[j] = LittleFloat(pinframe->translate[j]);
 752                 }
 753                 Mod_MD2_ConvertVerts(scale, translate, (void *)datapointer, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + i * numverts * 3, numverts, vertremap);
 754                 Mod_BuildTextureVectorsAndNormals(loadmodel->alias.aliasdata_meshes->num_vertices, loadmodel->alias.aliasdata_meshes->num_triangles, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_texcoord2f, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->data_aliassvector3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliastvector3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliasnormal3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3);
 755                 datapointer += numxyz * sizeof(trivertx_t);
 756
 757                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 758                 loadmodel->animscenes[i].firstframe = i;
 759                 loadmodel->animscenes[i].framecount = 1;
 760                 loadmodel->animscenes[i].framerate = 10;
 761                 loadmodel->animscenes[i].loop = true;
 762         }
 763
 764         Mem_Free(vertremap);
 765
 766         loadmodel->alias.aliasdata_meshes->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
 767         Mod_BuildTriangleNeighbors(loadmodel->alias.aliasdata_meshes->data_neighbor3i, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles);
 768         Mod_CalcAliasModelBBoxes();
 769 }
 770
 771 void Mod_IDP3_Load(model_t *mod, void *buffer)
 772 {
 773         int i, j, k, version;
 774         md3modelheader_t *pinmodel;
 775         md3frameinfo_t *pinframe;
 776         md3mesh_t *pinmesh;
 777         md3tag_t *pintag;
 778         aliasmesh_t *mesh;
 779         skinfile_t *skinfiles;
 780
 781         pinmodel = buffer;
 782
 783         if (memcmp(pinmodel->identifier, "IDP3", 4))
 784                 Host_Error ("%s is not a MD3 (IDP3) file\n", loadmodel->name);
 785         version = LittleLong (pinmodel->version);
 786         if (version != MD3VERSION)
 787                 Host_Error ("%s has wrong version number (%i should be %i)",
 788                         loadmodel->name, version, MD3VERSION);
 789
 790         skinfiles = Mod_LoadSkinFiles();
 791         loadmodel->numskins = Mod_CountSkinFiles(skinfiles);
 792         if (loadmodel->numskins < 1)
 793                 loadmodel->numskins = 1;
 794
 795         loadmodel->type = mod_alias;
 796         loadmodel->alias.aliastype = ALIASTYPE_ALIAS;
 797         loadmodel->DrawSky = NULL;
 798         loadmodel->Draw = R_Model_Alias_Draw;
 799         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 800         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 801         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 802         loadmodel->flags = 0;
 803         loadmodel->synctype = ST_RAND;
 804
 805         // set up some global info about the model
 806         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 807         loadmodel->alias.aliasnum_meshes = LittleLong(pinmodel->num_meshes);
 808
 809         // make skinscenes for the skins (no groups)
 810         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 811         for (i = 0;i < loadmodel->numskins;i++)
 812         {
 813                 loadmodel->skinscenes[i].firstframe = i;
 814                 loadmodel->skinscenes[i].framecount = 1;
 815                 loadmodel->skinscenes[i].loop = true;
 816                 loadmodel->skinscenes[i].framerate = 10;
 817         }
 818
 819         // load frameinfo
 820         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 821         for (i = 0, pinframe = (md3frameinfo_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
 822         {
 823                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 824                 loadmodel->animscenes[i].firstframe = i;
 825                 loadmodel->animscenes[i].framecount = 1;
 826                 loadmodel->animscenes[i].framerate = 10;
 827                 loadmodel->animscenes[i].loop = true;
 828         }
 829
 830         // load tags
 831         loadmodel->alias.aliasnum_tagframes = loadmodel->numframes;
 832         loadmodel->alias.aliasnum_tags = LittleLong(pinmodel->num_tags);
 833         loadmodel->alias.aliasdata_tags = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasnum_tagframes * loadmodel->alias.aliasnum_tags * sizeof(aliastag_t));
 834         for (i = 0, pintag = (md3tag_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_tags));i < loadmodel->alias.aliasnum_tagframes * loadmodel->alias.aliasnum_tags;i++, pinframe++)
 835         {
 836                 strcpy(loadmodel->alias.aliasdata_tags[i].name, pintag->name);
 837                 Matrix4x4_CreateIdentity(&loadmodel->alias.aliasdata_tags[i].matrix);
 838                 for (j = 0;j < 3;j++)
 839                 {
 840                         for (k = 0;k < 3;k++)
 841                                 loadmodel->alias.aliasdata_tags[i].matrix.m[k][j] = LittleLong(pintag->rotationmatrix[j * 3 + k]);
 842                         loadmodel->alias.aliasdata_tags[i].matrix.m[j][3] = LittleLong(pintag->origin[j]);
 843                 }
 844         }
 845
 846         // load meshes
 847         loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasnum_meshes * sizeof(aliasmesh_t));
 848         for (i = 0, pinmesh = (md3mesh_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_meshes));i < loadmodel->alias.aliasnum_meshes;i++, pinmesh = (md3mesh_t *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_end)))
 849         {
 850                 if (memcmp(pinmesh->identifier, "IDP3", 4))
 851                         Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)\n");
 852                 mesh = loadmodel->alias.aliasdata_meshes + i;
 853                 mesh->num_skins = loadmodel->numskins;
 854                 mesh->num_frames = LittleLong(pinmesh->num_frames);
 855                 mesh->num_vertices = LittleLong(pinmesh->num_vertices);
 856                 mesh->num_triangles = LittleLong(pinmesh->num_triangles);
 857                 mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(aliasskin_t));
 858                 mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
 859                 mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
 860                 mesh->data_texcoord2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
 861                 mesh->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * mesh->num_frames * sizeof(float[4][3]));
 862                 mesh->data_aliassvector3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 1;
 863                 mesh->data_aliastvector3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 2;
 864                 mesh->data_aliasnormal3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 3;
 865                 for (j = 0;j < mesh->num_triangles * 3;j++)
 866                         mesh->data_element3i[j] = LittleLong(((int *)((qbyte *)pinmesh + pinmesh->lump_elements))[j]);
 867                 for (j = 0;j < mesh->num_vertices;j++)
 868                 {
 869                         mesh->data_texcoord2f[j * 2 + 0] = LittleLong(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 0]);
 870                         mesh->data_texcoord2f[j * 2 + 1] = LittleLong(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 1]);
 871                 }
 872                 for (j = 0;j < mesh->num_vertices * mesh->num_frames;j++)
 873                 {
 874                         mesh->data_aliasvertex3f[j * 3 + 0] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 0]) * (1.0f / 64.0f);
 875                         mesh->data_aliasvertex3f[j * 3 + 1] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 1]) * (1.0f / 64.0f);
 876                         mesh->data_aliasvertex3f[j * 3 + 2] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 2]) * (1.0f / 64.0f);
 877                 }
 878                 for (j = 0;j < mesh->num_frames;j++)
 879                         Mod_BuildTextureVectorsAndNormals(mesh->num_vertices, mesh->num_triangles, mesh->data_aliasvertex3f + j * mesh->num_vertices * 3, mesh->data_texcoord2f, mesh->data_element3i, mesh->data_aliassvector3f + j * mesh->num_vertices * 3, mesh->data_aliastvector3f + j * mesh->num_vertices * 3, mesh->data_aliasnormal3f + j * mesh->num_vertices * 3);
 880
 881                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
 882                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
 883
 884                 if (LittleLong(pinmesh->num_shaders) >= 1 && ((md3shader_t *)((qbyte *) pinmesh + pinmesh->lump_shaders))->name[0])
 885                         Mod_BuildAliasSkinsFromSkinFiles(mesh->data_skins, skinfiles, ((md3shader_t *)((qbyte *) pinmesh + pinmesh->lump_shaders))->name);
 886         }
 887         Mod_CalcAliasModelBBoxes();
 888         Mod_FreeSkinFiles(skinfiles);
 889 }
 890
 891 extern void R_Model_Zymotic_DrawSky(entity_render_t *ent);
 892 extern void R_Model_Zymotic_Draw(entity_render_t *ent);
 893 extern void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent);
 894 extern void R_Model_Zymotic_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 895 extern void R_Model_Zymotic_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz);
 896 void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer)
 897 {
 898         zymtype1header_t *pinmodel, *pheader;
 899         qbyte *pbase;
 900
 901         pinmodel = (void *)buffer;
 902         pbase = buffer;
 903         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
 904                 Host_Error ("Mod_ZYMOTICMODEL_Load: %s is not a zymotic model\n");
 905         if (BigLong(pinmodel->type) != 1)
 906                 Host_Error ("Mod_ZYMOTICMODEL_Load: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
 907
 908         loadmodel->type = mod_alias;
 909         loadmodel->alias.aliastype = ALIASTYPE_ZYM;
 910         loadmodel->DrawSky = NULL;
 911         loadmodel->Draw = R_Model_Zymotic_Draw;
 912         loadmodel->DrawFakeShadow = NULL;//R_Model_Zymotic_DrawFakeShadow;
 913         loadmodel->DrawShadowVolume = NULL;//R_Model_Zymotic_DrawShadowVolume;
 914         loadmodel->DrawLight = NULL;//R_Model_Zymotic_DrawLight;
 915
 916         // byteswap header
 917         pheader = pinmodel;
 918         pheader->type = BigLong(pinmodel->type);
 919         pheader->filesize = BigLong(pinmodel->filesize);
 920         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
 921         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
 922         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
 923         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
 924         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
 925         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
 926         pheader->radius = BigFloat(pinmodel->radius);
 927         pheader->numverts = loadmodel->alias.zymnum_verts = BigLong(pinmodel->numverts);
 928         pheader->numtris = loadmodel->alias.zymnum_tris = BigLong(pinmodel->numtris);
 929         pheader->numshaders = loadmodel->alias.zymnum_shaders = BigLong(pinmodel->numshaders);
 930         pheader->numbones = loadmodel->alias.zymnum_bones = BigLong(pinmodel->numbones);
 931         pheader->numscenes = loadmodel->alias.zymnum_scenes = BigLong(pinmodel->numscenes);
 932         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
 933         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
 934         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
 935         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
 936         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
 937         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
 938         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
 939         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
 940         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
 941         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
 942         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
 943         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
 944         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
 945         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
 946         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
 947         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
 948         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
 949         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
 950
 951         loadmodel->flags = 0; // there are no flags
 952         loadmodel->numframes = pheader->numscenes;
 953         loadmodel->synctype = ST_SYNC;
 954         //loadmodel->numtris = pheader->numtris;
 955         //loadmodel->numverts = 0;
 956
 957         {
 958                 unsigned int i;
 959                 float modelradius, corner[2];
 960                 // model bbox
 961                 modelradius = pheader->radius;
 962                 for (i = 0;i < 3;i++)
 963                 {
 964                         loadmodel->normalmins[i] = pheader->mins[i];
 965                         loadmodel->normalmaxs[i] = pheader->maxs[i];
 966                         loadmodel->rotatedmins[i] = -modelradius;
 967                         loadmodel->rotatedmaxs[i] = modelradius;
 968                 }
 969                 corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
 970                 corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
 971                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
 972                 if (loadmodel->yawmaxs[0] > modelradius)
 973                         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
 974                 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
 975                 loadmodel->yawmins[2] = loadmodel->normalmins[2];
 976                 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 977                 loadmodel->radius = modelradius;
 978                 loadmodel->radius2 = modelradius * modelradius;
 979         }
 980
 981         {
 982                 // FIXME: add shaders, and make them switchable shader sets and...
 983                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t));
 984                 loadmodel->skinscenes[0].firstframe = 0;
 985                 loadmodel->skinscenes[0].framecount = 1;
 986                 loadmodel->skinscenes[0].loop = true;
 987                 loadmodel->skinscenes[0].framerate = 10;
 988                 loadmodel->numskins = 1;
 989         }
 990
 991         // go through the lumps, swapping things
 992
 993         {
 994                 int i, numposes;
 995                 zymscene_t *scene;
 996         //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
 997                 loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 998                 scene = (void *) (pheader->lump_scenes.start + pbase);
 999                 numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
1000                 for (i = 0;i < pheader->numscenes;i++)
1001                 {
1002                         memcpy(loadmodel->animscenes[i].name, scene->name, 32);
1003                         loadmodel->animscenes[i].firstframe = BigLong(scene->start);
1004                         loadmodel->animscenes[i].framecount = BigLong(scene->length);
1005                         loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
1006                         loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
1007                         if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
1008                                 Host_Error("Mod_ZYMOTICMODEL_Load: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
1009                         if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
1010                                 Host_Error("Mod_ZYMOTICMODEL_Load: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
1011                         if (loadmodel->animscenes[i].framerate < 0)
1012                                 Host_Error("Mod_ZYMOTICMODEL_Load: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
1013                         scene++;
1014                 }
1015         }
1016
1017         {
1018                 int i;
1019                 float *poses;
1020         //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
1021                 loadmodel->alias.zymdata_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
1022                 poses = (void *) (pheader->lump_poses.start + pbase);
1023                 for (i = 0;i < pheader->lump_poses.length / 4;i++)
1024                         loadmodel->alias.zymdata_poses[i] = BigFloat(poses[i]);
1025         }
1026
1027         {
1028                 int i;
1029                 zymbone_t *bone;
1030         //      zymlump_t lump_bones; // zymbone_t bone[numbones];
1031                 loadmodel->alias.zymdata_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(zymbone_t));
1032                 bone = (void *) (pheader->lump_bones.start + pbase);
1033                 for (i = 0;i < pheader->numbones;i++)
1034                 {
1035                         memcpy(loadmodel->alias.zymdata_bones[i].name, bone[i].name, sizeof(bone[i].name));
1036                         loadmodel->alias.zymdata_bones[i].flags = BigLong(bone[i].flags);
1037                         loadmodel->alias.zymdata_bones[i].parent = BigLong(bone[i].parent);
1038                         if (loadmodel->alias.zymdata_bones[i].parent >= i)
1039                                 Host_Error("Mod_ZYMOTICMODEL_Load: bone[%i].parent >= %i in %s\n", i, i, loadmodel->name);
1040                 }
1041         }
1042
1043         {
1044                 int i, *bonecount;
1045         //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
1046                 loadmodel->alias.zymdata_vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1047                 bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
1048                 for (i = 0;i < pheader->numverts;i++)
1049                 {
1050                         loadmodel->alias.zymdata_vertbonecounts[i] = BigLong(bonecount[i]);
1051                         if (loadmodel->alias.zymdata_vertbonecounts[i] < 1)
1052                                 Host_Error("Mod_ZYMOTICMODEL_Load: bone vertex count < 1 in %s\n", loadmodel->name);
1053                 }
1054         }
1055
1056         {
1057                 int i;
1058                 zymvertex_t *vertdata;
1059         //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
1060                 loadmodel->alias.zymdata_verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
1061                 vertdata = (void *) (pheader->lump_verts.start + pbase);
1062                 for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
1063                 {
1064                         loadmodel->alias.zymdata_verts[i].bonenum = BigLong(vertdata[i].bonenum);
1065                         loadmodel->alias.zymdata_verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
1066                         loadmodel->alias.zymdata_verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
1067                         loadmodel->alias.zymdata_verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
1068                 }
1069         }
1070
1071         {
1072                 int i;
1073                 float *intexcoord2f, *outtexcoord2f;
1074         //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1075                 loadmodel->alias.zymdata_texcoords = outtexcoord2f = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[2]));
1076                 intexcoord2f = (void *) (pheader->lump_texcoords.start + pbase);
1077                 for (i = 0;i < pheader->numverts;i++)
1078                 {
1079                         outtexcoord2f[i*2+0] = BigFloat(intexcoord2f[i*2+0]);
1080                         // flip T coordinate for OpenGL
1081                         outtexcoord2f[i*2+1] = 1 - BigFloat(intexcoord2f[i*2+1]);
1082                 }
1083         }
1084
1085         {
1086                 int i, count, *renderlist, *renderlistend, *outrenderlist;
1087         //      zymlump_t lump_render; // int renderlist[rendersize]; // sorted by shader with run lengths (int count), shaders are sequentially used, each run can be used with glDrawElements (each triangle is 3 int indices)
1088                 loadmodel->alias.zymdata_renderlist = Mem_Alloc(loadmodel->mempool, pheader->lump_render.length);
1089                 // byteswap, validate, and swap winding order of tris
1090                 count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1091                 if (pheader->lump_render.length != count)
1092                         Host_Error("Mod_ZYMOTICMODEL_Load: renderlist is wrong size in %s (is %i bytes, should be %i bytes)\n", loadmodel->name, pheader->lump_render.length, count);
1093                 outrenderlist = loadmodel->alias.zymdata_renderlist = Mem_Alloc(loadmodel->mempool, count);
1094                 renderlist = (void *) (pheader->lump_render.start + pbase);
1095                 renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
1096                 for (i = 0;i < pheader->numshaders;i++)
1097                 {
1098                         if (renderlist >= renderlistend)
1099                                 Host_Error("Mod_ZYMOTICMODEL_Load: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1100                         count = BigLong(*renderlist);renderlist++;
1101                         if (renderlist + count * 3 > renderlistend)
1102                                 Host_Error("Mod_ZYMOTICMODEL_Load: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1103                         *outrenderlist++ = count;
1104                         while (count--)
1105                         {
1106                                 outrenderlist[2] = BigLong(renderlist[0]);
1107                                 outrenderlist[1] = BigLong(renderlist[1]);
1108                                 outrenderlist[0] = BigLong(renderlist[2]);
1109                                 if ((unsigned int)outrenderlist[0] >= (unsigned int)pheader->numverts
1110                                  || (unsigned int)outrenderlist[1] >= (unsigned int)pheader->numverts
1111                                  || (unsigned int)outrenderlist[2] >= (unsigned int)pheader->numverts)
1112                                         Host_Error("Mod_ZYMOTICMODEL_Load: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
1113                                 renderlist += 3;
1114                                 outrenderlist += 3;
1115                         }
1116                 }
1117         }
1118
1119         {
1120                 int i;
1121                 char *shadername;
1122         //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1123                 loadmodel->alias.zymdata_textures = Mem_Alloc(loadmodel->mempool, pheader->numshaders * sizeof(rtexture_t *));
1124                 shadername = (void *) (pheader->lump_shaders.start + pbase);
1125                 for (i = 0;i < pheader->numshaders;i++)
1126                         loadmodel->alias.zymdata_textures[i] = loadtextureimage(loadmodel->texturepool, shadername + i * 32, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0));
1127         }
1128
1129         {
1130         //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1131                 loadmodel->alias.zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1132                 memcpy(loadmodel->alias.zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1133         }
1134 }
1135