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
  23 static cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0"};
  24
  25 void Mod_AliasInit (void)
  26 {
  27         Cvar_RegisterVariable(&r_mipskins);
  28 }
  29
  30 // LordHavoc: proper bounding box considerations
  31 static float aliasbboxmin[3], aliasbboxmax[3], modelyawradius, modelradius;
  32
  33 static float vertst[MAXALIASVERTS][2];
  34 static int vertusage[MAXALIASVERTS];
  35 static int vertonseam[MAXALIASVERTS];
  36 static int vertremap[MAXALIASVERTS];
  37 static int temptris[MAXALIASTRIS][3];
  38
  39 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, trivertx_t *out)
  40 {
  41         int i, j, invalidnormals = 0;
  42         float dist;
  43         vec3_t temp;
  44         for (i = 0;i < inverts;i++)
  45         {
  46                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
  47                         continue;
  48
  49                 temp[0] = v[i].v[0] * scale[0] + translate[0];
  50                 temp[1] = v[i].v[1] * scale[1] + translate[1];
  51                 temp[2] = v[i].v[2] * scale[2] + translate[2];
  52                 // update bounding box
  53                 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
  54                 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
  55                 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
  56                 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
  57                 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
  58                 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
  59                 dist = temp[0]*temp[0]+temp[1]*temp[1];
  60                 if (modelyawradius < dist)
  61                         modelyawradius = dist;
  62                 dist += temp[2]*temp[2];
  63                 if (modelradius < dist)
  64                         modelradius = dist;
  65
  66                 j = vertremap[i]; // not onseam
  67                 if (j >= 0)
  68                 {
  69                         VectorCopy(v[i].v, out[j].v);
  70                         out[j].lightnormalindex = v[i].lightnormalindex;
  71                         if (out[j].lightnormalindex >= NUMVERTEXNORMALS)
  72                         {
  73                                 invalidnormals++;
  74                                 out[j].lightnormalindex = 0;
  75                         }
  76                 }
  77                 j = vertremap[i+inverts]; // onseam
  78                 if (j >= 0)
  79                 {
  80                         VectorCopy(v[i].v, out[j].v);
  81                         out[j].lightnormalindex = v[i].lightnormalindex;
  82                         if (out[j].lightnormalindex >= NUMVERTEXNORMALS)
  83                         {
  84                                 invalidnormals++;
  85                                 out[j].lightnormalindex = 0;
  86                         }
  87                 }
  88         }
  89         if (invalidnormals)
  90                 Con_Printf("Mod_ConvertAliasVerts: \"%s\", %i invalid normal indices found\n", loadmodel->name, invalidnormals);
  91 }
  92
  93 static void Mod_MDL_LoadFrames (qbyte * datapointer, int inverts, int outverts, vec3_t scale, vec3_t translate)
  94 {
  95         daliasframetype_t       *pframetype;
  96         daliasframe_t           *pinframe;
  97         daliasgroup_t           *group;
  98         daliasinterval_t        *intervals;
  99         int                                     i, f, pose, groupframes;
 100         float                           interval;
 101         animscene_t                     *scene;
 102         pose = 0;
 103         scene = loadmodel->animscenes;
 104         for (f = 0;f < loadmodel->numframes;f++)
 105         {
 106                 pframetype = (daliasframetype_t *)datapointer;
 107                 datapointer += sizeof(daliasframetype_t);
 108                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 109                 {
 110                         // a single frame is still treated as a group
 111                         interval = 0.1f;
 112                         groupframes = 1;
 113                 }
 114                 else
 115                 {
 116                         // read group header
 117                         group = (daliasgroup_t *)datapointer;
 118                         datapointer += sizeof(daliasgroup_t);
 119                         groupframes = LittleLong (group->numframes);
 120
 121                         // intervals (time per frame)
 122                         intervals = (daliasinterval_t *)datapointer;
 123                         datapointer += sizeof(daliasinterval_t) * groupframes;
 124
 125                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 126                         if (interval < 0.01f)
 127                                 Host_Error("Mod_LoadAliasGroup: invalid interval");
 128                 }
 129
 130                 // get scene name from first frame
 131                 pinframe = (daliasframe_t *)datapointer;
 132
 133                 strcpy(scene->name, pinframe->name);
 134                 scene->firstframe = pose;
 135                 scene->framecount = groupframes;
 136                 scene->framerate = 1.0f / interval;
 137                 scene->loop = true;
 138                 scene++;
 139
 140                 // read frames
 141                 for (i = 0;i < groupframes;i++)
 142                 {
 143                         pinframe = (daliasframe_t *)datapointer;
 144                         datapointer += sizeof(daliasframe_t);
 145
 146                         // convert to MD2 frame headers
 147                         strcpy(loadmodel->mdlmd2data_frames[pose].name, pinframe->name);
 148                         VectorCopy(scale, loadmodel->mdlmd2data_frames[pose].scale);
 149                         VectorCopy(translate, loadmodel->mdlmd2data_frames[pose].translate);
 150
 151                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->mdlmd2data_pose + pose * outverts);
 152                         datapointer += sizeof(trivertx_t) * inverts;
 153                         pose++;
 154                 }
 155         }
 156 }
 157
 158 static rtexture_t *GL_SkinSplitShirt(qbyte *in, qbyte *out, int width, int height, int bits, char *name, int precache)
 159 {
 160         int i, pixels, passed;
 161         qbyte pixeltest[16];
 162         for (i = 0;i < 16;i++)
 163                 pixeltest[i] = (bits & (1 << i)) != 0;
 164         pixels = width*height;
 165         passed = 0;
 166         while(pixels--)
 167         {
 168                 if (pixeltest[*in >> 4] && *in != 0 && *in != 255)
 169                 {
 170                         passed++;
 171                         // turn to white while copying
 172                         if (*in >= 128 && *in < 224) // backwards ranges
 173                                 *out = (*in & 15) ^ 15;
 174                         else
 175                                 *out = *in & 15;
 176                 }
 177                 else
 178                         *out = 0;
 179                 in++;
 180                 out++;
 181         }
 182         if (passed)
 183                 return R_LoadTexture (loadmodel->texturepool, name, width, height, out - width*height, TEXTYPE_QPALETTE, (r_mipskins.integer ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0));
 184         else
 185                 return NULL;
 186 }
 187
 188 static rtexture_t *GL_SkinSplit(qbyte *in, qbyte *out, int width, int height, int bits, char *name, int precache)
 189 {
 190         int i, pixels, passed;
 191         qbyte pixeltest[16];
 192         for (i = 0;i < 16;i++)
 193                 pixeltest[i] = (bits & (1 << i)) != 0;
 194         pixels = width*height;
 195         passed = 0;
 196         while(pixels--)
 197         {
 198                 if (pixeltest[*in >> 4] && *in != 0 && *in != 255)
 199                 {
 200                         passed++;
 201                         *out = *in;
 202                 }
 203                 else
 204                         *out = 0;
 205                 in++;
 206                 out++;
 207         }
 208         if (passed)
 209                 return R_LoadTexture (loadmodel->texturepool, name, width, height, out - width*height, TEXTYPE_QPALETTE, (r_mipskins.integer ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0));
 210         else
 211                 return NULL;
 212 }
 213
 214 static int Mod_LoadExternalSkin (char *basename, skinframe_t *skinframe, int precache)
 215 {
 216         skinframe->base   = loadtextureimagewithmask(loadmodel->texturepool, va("%s_normal", basename), 0, 0, false, r_mipskins.integer, precache);
 217         skinframe->fog    = image_masktex;
 218         if (!skinframe->base)
 219         {
 220                 skinframe->base   = loadtextureimagewithmask(loadmodel->texturepool, basename, 0, 0, false, r_mipskins.integer, precache);
 221                 skinframe->fog    = image_masktex;
 222         }
 223         skinframe->pants  = loadtextureimage(loadmodel->texturepool, va("%s_pants" , basename), 0, 0, false, r_mipskins.integer, precache);
 224         skinframe->shirt  = loadtextureimage(loadmodel->texturepool, va("%s_shirt" , basename), 0, 0, false, r_mipskins.integer, precache);
 225         skinframe->glow   = loadtextureimage(loadmodel->texturepool, va("%s_glow"  , basename), 0, 0, false, r_mipskins.integer, precache);
 226         skinframe->merged = NULL;
 227         return skinframe->base != NULL || skinframe->pants != NULL || skinframe->shirt != NULL || skinframe->glow != NULL;
 228 }
 229
 230 static int Mod_LoadInternalSkin (char *basename, qbyte *skindata, qbyte *skintemp, int width, int height, skinframe_t *skinframe, int precache)
 231 {
 232         if (!skindata || !skintemp)
 233                 return false;
 234         skinframe->pants  = GL_SkinSplitShirt(skindata, skintemp, width, height, 0x0040, va("%s_pants", basename), false); // pants
 235         skinframe->shirt  = GL_SkinSplitShirt(skindata, skintemp, width, height, 0x0002, va("%s_shirt", basename), false); // shirt
 236         skinframe->glow   = GL_SkinSplit     (skindata, skintemp, width, height, 0xC000, va("%s_glow", basename), precache); // glow
 237         if (skinframe->pants || skinframe->shirt)
 238         {
 239                 skinframe->base   = GL_SkinSplit (skindata, skintemp, width, height, 0x3FBD, va("%s_normal", basename), false); // normal (no special colors)
 240                 skinframe->merged = GL_SkinSplit (skindata, skintemp, width, height, 0x3FFF, va("%s_body", basename), precache); // body (normal + pants + shirt, but not glow)
 241         }
 242         else
 243                 skinframe->base   = GL_SkinSplit (skindata, skintemp, width, height, 0x3FFF, va("%s_base", basename), precache); // no special colors
 244         // quake model skins don't have alpha
 245         skinframe->fog = NULL;
 246         return true;
 247 }
 248
 249 #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);
 250 #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);
 251 extern void R_Model_Alias_Draw(entity_render_t *ent);
 252 extern void R_Model_Alias_DrawFakeShadow(entity_render_t *ent);
 253 extern void R_Model_Alias_DrawDepth(entity_render_t *ent);
 254 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int visiblevolume);
 255 extern void R_Model_Alias_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, float lightradius2, float lightdistbias, float lightsubtract, float *lightcolor);
 256 extern void R_Model_Alias_DrawOntoLight(entity_render_t *ent);
 257 void Mod_LoadAliasModel (model_t *mod, void *buffer)
 258 {
 259         int                                             i, j, version, numverts, totalposes, totalskins, skinwidth, skinheight, totalverts, groupframes, groupskins;
 260         mdl_t                                   *pinmodel;
 261         stvert_t                                *pinstverts;
 262         dtriangle_t                             *pintriangles;
 263         daliasskintype_t                *pinskintype;
 264         daliasskingroup_t               *pinskingroup;
 265         daliasskininterval_t    *pinskinintervals;
 266         daliasframetype_t               *pinframetype;
 267         daliasgroup_t                   *pinframegroup;
 268         float                                   scales, scalet, scale[3], translate[3], interval;
 269         qbyte                                   *datapointer, *startframes, *startskins;
 270         char                                    name[MAX_QPATH];
 271         qbyte                                   *skintemp = NULL;
 272         skinframe_t                             tempskinframe;
 273         animscene_t                             *tempskinscenes;
 274         skinframe_t                             *tempskinframes;
 275         modelyawradius = 0;
 276         modelradius = 0;
 277
 278         datapointer = buffer;
 279         pinmodel = (mdl_t *)datapointer;
 280         datapointer += sizeof(mdl_t);
 281
 282         version = LittleLong (pinmodel->version);
 283         if (version != ALIAS_VERSION)
 284                 Host_Error ("%s has wrong version number (%i should be %i)",
 285                                  loadmodel->name, version, ALIAS_VERSION);
 286
 287         loadmodel->type = mod_alias;
 288         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 289         loadmodel->DrawSky = NULL;
 290         loadmodel->Draw = R_Model_Alias_Draw;
 291         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 292         loadmodel->DrawDepth = R_Model_Alias_DrawDepth;
 293         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 294         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 295         loadmodel->DrawOntoLight = R_Model_Alias_DrawOntoLight;
 296
 297         loadmodel->numskins = LittleLong(pinmodel->numskins);
 298         BOUNDI(loadmodel->numskins,0,256);
 299         skinwidth = LittleLong (pinmodel->skinwidth);
 300         BOUNDI(skinwidth,0,4096);
 301         skinheight = LittleLong (pinmodel->skinheight);
 302         BOUNDI(skinheight,0,4096);
 303         loadmodel->numverts = numverts = LittleLong(pinmodel->numverts);
 304         BOUNDI(loadmodel->numverts,0,MAXALIASVERTS);
 305         loadmodel->numtris = LittleLong(pinmodel->numtris);
 306         BOUNDI(loadmodel->numtris,0,MAXALIASTRIS);
 307         loadmodel->numframes = LittleLong(pinmodel->numframes);
 308         BOUNDI(loadmodel->numframes,0,65536);
 309         loadmodel->synctype = LittleLong (pinmodel->synctype);
 310         BOUNDI(loadmodel->synctype,0,2);
 311         loadmodel->flags = LittleLong (pinmodel->flags);
 312
 313         for (i = 0;i < 3;i++)
 314         {
 315                 scale[i] = LittleFloat (pinmodel->scale[i]);
 316                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 317         }
 318
 319         startskins = datapointer;
 320         totalskins = 0;
 321         for (i = 0;i < loadmodel->numskins;i++)
 322         {
 323                 pinskintype = (daliasskintype_t *)datapointer;
 324                 datapointer += sizeof(daliasskintype_t);
 325                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 326                         groupskins = 1;
 327                 else
 328                 {
 329                         pinskingroup = (daliasskingroup_t *)datapointer;
 330                         datapointer += sizeof(daliasskingroup_t);
 331                         groupskins = LittleLong(pinskingroup->numskins);
 332                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 333                 }
 334
 335                 for (j = 0;j < groupskins;j++)
 336                 {
 337                         datapointer += skinwidth * skinheight;
 338                         totalskins++;
 339                 }
 340         }
 341
 342         pinstverts = (stvert_t *)datapointer;
 343         datapointer += sizeof(stvert_t) * numverts;
 344
 345         pintriangles = (dtriangle_t *)datapointer;
 346         datapointer += sizeof(dtriangle_t) * loadmodel->numtris;
 347
 348         startframes = datapointer;
 349         totalposes = 0;
 350         for (i = 0;i < loadmodel->numframes;i++)
 351         {
 352                 pinframetype = (daliasframetype_t *)datapointer;
 353                 datapointer += sizeof(daliasframetype_t);
 354                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 355                         groupframes = 1;
 356                 else
 357                 {
 358                         pinframegroup = (daliasgroup_t *)datapointer;
 359                         datapointer += sizeof(daliasgroup_t);
 360                         groupframes = LittleLong(pinframegroup->numframes);
 361                         datapointer += sizeof(daliasinterval_t) * groupframes;
 362                 }
 363
 364                 for (j = 0;j < groupframes;j++)
 365                 {
 366                         datapointer += sizeof(daliasframe_t);
 367                         datapointer += sizeof(trivertx_t) * numverts;
 368                         totalposes++;
 369                 }
 370         }
 371
 372         // load the skins
 373         skintemp = Mem_Alloc(tempmempool, skinwidth * skinheight);
 374         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 375         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, totalskins * sizeof(skinframe_t));
 376         totalskins = 0;
 377         datapointer = startskins;
 378         for (i = 0;i < loadmodel->numskins;i++)
 379         {
 380                 pinskintype = (daliasskintype_t *)datapointer;
 381                 datapointer += sizeof(daliasskintype_t);
 382
 383                 if (pinskintype->type == ALIAS_SKIN_SINGLE)
 384                 {
 385                         groupskins = 1;
 386                         interval = 0.1f;
 387                 }
 388                 else
 389                 {
 390                         pinskingroup = (daliasskingroup_t *)datapointer;
 391                         datapointer += sizeof(daliasskingroup_t);
 392
 393                         groupskins = LittleLong (pinskingroup->numskins);
 394
 395                         pinskinintervals = (daliasskininterval_t *)datapointer;
 396                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 397
 398                         interval = LittleFloat(pinskinintervals[0].interval);
 399                         if (interval < 0.01f)
 400                                 Host_Error("Mod_LoadAliasModel: invalid interval\n");
 401                 }
 402
 403                 sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 404                 loadmodel->skinscenes[i].firstframe = totalskins;
 405                 loadmodel->skinscenes[i].framecount = groupskins;
 406                 loadmodel->skinscenes[i].framerate = 1.0f / interval;
 407                 loadmodel->skinscenes[i].loop = true;
 408
 409                 for (j = 0;j < groupskins;j++)
 410                 {
 411                         if (groupskins > 1)
 412                                 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 413                         else
 414                                 sprintf (name, "%s_%i", loadmodel->name, i);
 415                         if (!Mod_LoadExternalSkin(name, loadmodel->skinframes + totalskins, i == 0))
 416                                 Mod_LoadInternalSkin(name, (qbyte *)datapointer, skintemp, skinwidth, skinheight, loadmodel->skinframes + totalskins, i == 0);
 417                         datapointer += skinwidth * skinheight;
 418                         totalskins++;
 419                 }
 420         }
 421         Mem_Free(skintemp);
 422         // check for skins that don't exist in the model, but do exist as external images
 423         // (this was added because yummyluv kept pestering me about support for it)
 424         for (;;)
 425         {
 426                 sprintf (name, "%s_%i", loadmodel->name, loadmodel->numskins);
 427                 if (Mod_LoadExternalSkin(name, &tempskinframe, loadmodel->numskins == 0))
 428                 {
 429                         // expand the arrays to make room
 430                         tempskinscenes = loadmodel->skinscenes;
 431                         tempskinframes = loadmodel->skinframes;
 432                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 433                         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(skinframe_t));
 434                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 435                         memcpy(loadmodel->skinframes, tempskinframes, totalskins * sizeof(skinframe_t));
 436                         Mem_Free(tempskinscenes);
 437                         Mem_Free(tempskinframes);
 438                         // store the info about the new skin
 439                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 440                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 441                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 442                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 443                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 444                         loadmodel->skinframes[totalskins] = tempskinframe;
 445                         loadmodel->numskins++;
 446                         totalskins++;
 447                 }
 448                 else
 449                         break;
 450         }
 451
 452         // store texture coordinates into temporary array, they will be stored after usage is determined (triangle data)
 453         scales = 1.0 / skinwidth;
 454         scalet = 1.0 / skinheight;
 455         for (i = 0;i < numverts;i++)
 456         {
 457                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 458                 vertst[i][0] = LittleLong(pinstverts[i].s) * scales;
 459                 vertst[i][1] = LittleLong(pinstverts[i].t) * scalet;
 460                 vertst[i+numverts][0] = vertst[i][0] + 0.5;
 461                 vertst[i+numverts][1] = vertst[i][1];
 462                 vertusage[i] = 0;
 463                 vertusage[i+numverts] = 0;
 464         }
 465
 466 // load triangle data
 467         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->numtris);
 468
 469         // count the vertices used
 470         for (i = 0;i < numverts*2;i++)
 471                 vertusage[i] = 0;
 472         for (i = 0;i < loadmodel->numtris;i++)
 473         {
 474                 temptris[i][0] = LittleLong(pintriangles[i].vertindex[0]);
 475                 temptris[i][1] = LittleLong(pintriangles[i].vertindex[1]);
 476                 temptris[i][2] = LittleLong(pintriangles[i].vertindex[2]);
 477                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 478                 {
 479                         if (vertonseam[temptris[i][0]]) temptris[i][0] += numverts;
 480                         if (vertonseam[temptris[i][1]]) temptris[i][1] += numverts;
 481                         if (vertonseam[temptris[i][2]]) temptris[i][2] += numverts;
 482                 }
 483                 vertusage[temptris[i][0]]++;
 484                 vertusage[temptris[i][1]]++;
 485                 vertusage[temptris[i][2]]++;
 486         }
 487         // build remapping table and compact array
 488         totalverts = 0;
 489         for (i = 0;i < numverts*2;i++)
 490         {
 491                 if (vertusage[i])
 492                 {
 493                         vertremap[i] = totalverts;
 494                         vertst[totalverts][0] = vertst[i][0];
 495                         vertst[totalverts][1] = vertst[i][1];
 496                         totalverts++;
 497                 }
 498                 else
 499                         vertremap[i] = -1; // not used at all
 500         }
 501         loadmodel->numverts = totalverts;
 502         // remap the triangle references
 503         for (i = 0;i < loadmodel->numtris;i++)
 504         {
 505                 loadmodel->mdlmd2data_indices[i*3+0] = vertremap[temptris[i][0]];
 506                 loadmodel->mdlmd2data_indices[i*3+1] = vertremap[temptris[i][1]];
 507                 loadmodel->mdlmd2data_indices[i*3+2] = vertremap[temptris[i][2]];
 508         }
 509         // store the texture coordinates
 510         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * totalverts);
 511         for (i = 0;i < totalverts;i++)
 512         {
 513                 loadmodel->mdlmd2data_texcoords[i*2+0] = vertst[i][0];
 514                 loadmodel->mdlmd2data_texcoords[i*2+1] = vertst[i][1];
 515         }
 516
 517 // load the frames
 518         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 519         loadmodel->mdlmd2data_frames = Mem_Alloc(loadmodel->mempool, sizeof(md2frame_t) * totalposes);
 520         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, sizeof(trivertx_t) * totalposes * totalverts);
 521
 522         // LordHavoc: doing proper bbox for model
 523         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 524         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 525
 526         Mod_MDL_LoadFrames (startframes, numverts, totalverts, scale, translate);
 527
 528         modelyawradius = sqrt(modelyawradius);
 529         modelradius = sqrt(modelradius);
 530         for (j = 0;j < 3;j++)
 531         {
 532                 loadmodel->normalmins[j] = aliasbboxmin[j];
 533                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 534                 loadmodel->rotatedmins[j] = -modelradius;
 535                 loadmodel->rotatedmaxs[j] = modelradius;
 536         }
 537         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 538         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 539         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 540         loadmodel->radius = modelradius;
 541         loadmodel->radius2 = modelradius * modelradius;
 542
 543         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 544         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 545 }
 546
 547 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, trivertx_t *out, int *vertremap)
 548 {
 549         int i, invalidnormals = 0;
 550         float dist;
 551         trivertx_t *in;
 552         vec3_t temp;
 553         for (i = 0;i < loadmodel->numverts;i++)
 554         {
 555                 in = v + vertremap[i];
 556                 VectorCopy(in->v, out[i].v);
 557                 temp[0] = in->v[0] * scale[0] + translate[0];
 558                 temp[1] = in->v[1] * scale[1] + translate[1];
 559                 temp[2] = in->v[2] * scale[2] + translate[2];
 560                 // update bounding box
 561                 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
 562                 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
 563                 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
 564                 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
 565                 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
 566                 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
 567                 dist = temp[0]*temp[0]+temp[1]*temp[1];
 568                 if (modelyawradius < dist)
 569                         modelyawradius = dist;
 570                 dist += temp[2]*temp[2];
 571                 if (modelradius < dist)
 572                         modelradius = dist;
 573                 out[i].lightnormalindex = in->lightnormalindex;
 574                 if (out[i].lightnormalindex >= NUMVERTEXNORMALS)
 575                 {
 576                         invalidnormals++;
 577                         out[i].lightnormalindex = 0;
 578                 }
 579         }
 580         if (invalidnormals)
 581                 Con_Printf("Mod_MD2_ConvertVerts: \"%s\", %i invalid normal indices found\n", loadmodel->name, invalidnormals);
 582 }
 583
 584 void Mod_LoadQ2AliasModel (model_t *mod, void *buffer)
 585 {
 586         int *vertremap;
 587         md2_t *pinmodel;
 588         qbyte *base;
 589         int version, end;
 590         int i, j, k, hashindex, num, numxyz, numst, xyz, st;
 591         float *stverts, s, t;
 592         struct md2verthash_s
 593         {
 594                 struct md2verthash_s *next;
 595                 int xyz;
 596                 float st[2];
 597         }
 598         *hash, **md2verthash, *md2verthashdata;
 599         qbyte *datapointer;
 600         md2frame_t *pinframe;
 601         char *inskin;
 602         md2triangle_t *intri;
 603         unsigned short *inst;
 604         int skinwidth, skinheight;
 605
 606         pinmodel = buffer;
 607         base = buffer;
 608
 609         version = LittleLong (pinmodel->version);
 610         if (version != MD2ALIAS_VERSION)
 611                 Host_Error ("%s has wrong version number (%i should be %i)",
 612                         loadmodel->name, version, MD2ALIAS_VERSION);
 613
 614         loadmodel->type = mod_alias;
 615         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 616         loadmodel->DrawSky = NULL;
 617         loadmodel->Draw = R_Model_Alias_Draw;
 618         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 619         loadmodel->DrawDepth = R_Model_Alias_DrawDepth;
 620         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 621         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 622         loadmodel->DrawOntoLight = R_Model_Alias_DrawOntoLight;
 623
 624         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > MD2MAX_TRIANGLES)
 625                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 626         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > MD2MAX_VERTS)
 627                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 628         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > MD2MAX_FRAMES)
 629                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 630         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > MAX_SKINS)
 631                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 632
 633         end = LittleLong(pinmodel->ofs_end);
 634         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
 635                 Host_Error ("%s is not a valid model", loadmodel->name);
 636         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
 637                 Host_Error ("%s is not a valid model", loadmodel->name);
 638         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
 639                 Host_Error ("%s is not a valid model", loadmodel->name);
 640         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
 641                 Host_Error ("%s is not a valid model", loadmodel->name);
 642         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
 643                 Host_Error ("%s is not a valid model", loadmodel->name);
 644
 645         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 646         numxyz = LittleLong(pinmodel->num_xyz);
 647         numst = LittleLong(pinmodel->num_st);
 648         loadmodel->numtris = LittleLong(pinmodel->num_tris);
 649         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 650
 651         loadmodel->flags = 0; // there are no MD2 flags
 652         loadmodel->synctype = ST_RAND;
 653
 654         // load the skins
 655         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 656         if (loadmodel->numskins)
 657         {
 658                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 659                 loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, sizeof(skinframe_t) * loadmodel->numskins);
 660                 for (i = 0;i < loadmodel->numskins;i++)
 661                 {
 662                         loadmodel->skinscenes[i].firstframe = i;
 663                         loadmodel->skinscenes[i].framecount = 1;
 664                         loadmodel->skinscenes[i].loop = true;
 665                         loadmodel->skinscenes[i].framerate = 10;
 666                         loadmodel->skinframes[i].base = loadtextureimagewithmask (loadmodel->texturepool, inskin, 0, 0, true, r_mipskins.integer, true);
 667                         loadmodel->skinframes[i].fog = image_masktex;
 668                         loadmodel->skinframes[i].pants = NULL;
 669                         loadmodel->skinframes[i].shirt = NULL;
 670                         loadmodel->skinframes[i].glow = NULL;
 671                         loadmodel->skinframes[i].merged = NULL;
 672                         inskin += MD2MAX_SKINNAME;
 673                 }
 674         }
 675
 676         // load the triangles and stvert data
 677         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 678         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 679         skinwidth = LittleLong(pinmodel->skinwidth);
 680         skinheight = LittleLong(pinmodel->skinheight);
 681
 682         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 683         s = 1.0f / skinwidth;
 684         t = 1.0f / skinheight;
 685         for (i = 0;i < numst;i++)
 686         {
 687                 j = (unsigned short) LittleShort(inst[i*2+0]);
 688                 k = (unsigned short) LittleShort(inst[i*2+1]);
 689                 if (j >= skinwidth || k >= skinheight)
 690                 {
 691                         Mem_Free(stverts);
 692                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
 693                 }
 694                 stverts[i*2+0] = j * s;
 695                 stverts[i*2+1] = k * t;
 696         }
 697
 698         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 699         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->numtris * 3 * sizeof(*hash));
 700         // swap the triangle list
 701         num = 0;
 702         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 703         for (i = 0;i < loadmodel->numtris;i++)
 704         {
 705                 for (j = 0;j < 3;j++)
 706                 {
 707                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 708                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 709                         if (xyz >= numxyz || st >= numst)
 710                         {
 711                                 Mem_Free(md2verthash);
 712                                 Mem_Free(md2verthashdata);
 713                                 Mem_Free(stverts);
 714                                 if (xyz >= numxyz)
 715                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
 716                                 if (st >= numst)
 717                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
 718                         }
 719                         s = stverts[st*2+0];
 720                         t = stverts[st*2+1];
 721                         hashindex = (xyz * 17 + st) & 255;
 722                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 723                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 724                                         break;
 725                         if (hash == NULL)
 726                         {
 727                                 hash = md2verthashdata + num++;
 728                                 hash->xyz = xyz;
 729                                 hash->st[0] = s;
 730                                 hash->st[1] = t;
 731                                 hash->next = md2verthash[hashindex];
 732                                 md2verthash[hashindex] = hash;
 733                         }
 734                         loadmodel->mdlmd2data_indices[i*3+j] = (hash - md2verthashdata);
 735                 }
 736         }
 737
 738         Mem_Free(stverts);
 739
 740         loadmodel->numverts = num;
 741         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 742         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
 743         for (i = 0;i < num;i++)
 744         {
 745                 hash = md2verthashdata + i;
 746                 vertremap[i] = hash->xyz;
 747                 loadmodel->mdlmd2data_texcoords[i*2+0] = hash->st[0];
 748                 loadmodel->mdlmd2data_texcoords[i*2+1] = hash->st[1];
 749         }
 750
 751         Mem_Free(md2verthash);
 752         Mem_Free(md2verthashdata);
 753
 754         // load frames
 755         // LordHavoc: doing proper bbox for model
 756         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 757         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 758         modelyawradius = 0;
 759         modelradius = 0;
 760
 761         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 762         // load the frames
 763         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 764         loadmodel->mdlmd2data_frames = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(md2frame_t));
 765         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, loadmodel->numverts * loadmodel->numframes * sizeof(trivertx_t));
 766
 767         for (i = 0;i < loadmodel->numframes;i++)
 768         {
 769                 pinframe = (md2frame_t *)datapointer;
 770                 datapointer += sizeof(md2frame_t);
 771                 strcpy(loadmodel->mdlmd2data_frames[i].name, pinframe->name);
 772                 for (j = 0;j < 3;j++)
 773                 {
 774                         loadmodel->mdlmd2data_frames[i].scale[j] = LittleFloat(pinframe->scale[j]);
 775                         loadmodel->mdlmd2data_frames[i].translate[j] = LittleFloat(pinframe->translate[j]);
 776                 }
 777                 Mod_MD2_ConvertVerts (loadmodel->mdlmd2data_frames[i].scale, loadmodel->mdlmd2data_frames[i].translate, (void *)datapointer, &loadmodel->mdlmd2data_pose[i * loadmodel->numverts], vertremap);
 778                 datapointer += numxyz * sizeof(trivertx_t);
 779
 780                 strcpy(loadmodel->animscenes[i].name, loadmodel->mdlmd2data_frames[i].name);
 781                 loadmodel->animscenes[i].firstframe = i;
 782                 loadmodel->animscenes[i].framecount = 1;
 783                 loadmodel->animscenes[i].framerate = 10;
 784                 loadmodel->animscenes[i].loop = true;
 785         }
 786
 787         Mem_Free(vertremap);
 788
 789         // LordHavoc: model bbox
 790         modelyawradius = sqrt(modelyawradius);
 791         modelradius = sqrt(modelradius);
 792         for (j = 0;j < 3;j++)
 793         {
 794                 loadmodel->normalmins[j] = aliasbboxmin[j];
 795                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 796                 loadmodel->rotatedmins[j] = -modelradius;
 797                 loadmodel->rotatedmaxs[j] = modelradius;
 798         }
 799         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 800         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 801         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 802         loadmodel->radius = modelradius;
 803         loadmodel->radius2 = modelradius * modelradius;
 804
 805         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 806         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 807 }
 808
 809 static void zymswapintblock(int *m, int size)
 810 {
 811         size /= 4;
 812         while(size--)
 813         {
 814                 *m = BigLong(*m);
 815                 m++;
 816         }
 817 }
 818
 819 extern void R_Model_Zymotic_DrawSky(entity_render_t *ent);
 820 extern void R_Model_Zymotic_Draw(entity_render_t *ent);
 821 extern void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent);
 822 extern void R_Model_Zymotic_DrawDepth(entity_render_t *ent);
 823 extern void R_Model_Zymotic_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int visiblevolume);
 824 extern void R_Model_Zymotic_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, float lightradius2, float lightdistbias, float lightsubtract, float *lightcolor);
 825 extern void R_Model_Zymotic_DrawOntoLight(entity_render_t *ent);
 826 void Mod_LoadZymoticModel(model_t *mod, void *buffer)
 827 {
 828         int i, pbase, *bonecount, numposes;
 829         unsigned int count, a, b, c, *renderlist, *renderlistend;
 830         rtexture_t **texture;
 831         char *shadername;
 832         zymtype1header_t *pinmodel, *pheader;
 833         zymscene_t *scene;
 834         zymbone_t *bone;
 835         float corner[2], modelradius;
 836
 837         pinmodel = (void *)buffer;
 838
 839         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
 840                 Host_Error ("Mod_LoadZymoticModel: %s is not a zymotic model\n");
 841
 842         if (BigLong(pinmodel->type) != 1)
 843                 Host_Error ("Mod_LoadZymoticModel: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
 844
 845         loadmodel->type = mod_alias;
 846         loadmodel->aliastype = ALIASTYPE_ZYM;
 847
 848         loadmodel->zymdata_header = pheader = Mem_Alloc(loadmodel->mempool, BigLong(pinmodel->filesize));
 849
 850         pbase = (int) pheader;
 851
 852         memcpy(pheader, pinmodel, BigLong(pinmodel->filesize));
 853
 854         // byteswap header
 855 #define SWAPLONG(var) var = BigLong(var)
 856 #define SWAPFLOAT(var) var = BigFloat(var)
 857 #define SWAPVEC(var) SWAPFLOAT(var[0]);SWAPFLOAT(var[1]);SWAPFLOAT(var[2])
 858         SWAPLONG(pheader->type);
 859         SWAPLONG(pheader->filesize);
 860         SWAPVEC(pheader->mins);
 861         SWAPVEC(pheader->maxs);
 862         SWAPFLOAT(pheader->radius);
 863         SWAPLONG(pheader->numverts);
 864         SWAPLONG(pheader->numtris);
 865         SWAPLONG(pheader->numshaders);
 866         SWAPLONG(pheader->numbones);
 867         SWAPLONG(pheader->numscenes);
 868
 869 #define SWAPLUMPINFO(var) SWAPLONG(pheader->lump_##var.start);SWAPLONG(pheader->lump_##var.length)
 870         SWAPLUMPINFO(scenes);
 871         SWAPLUMPINFO(poses);
 872         SWAPLUMPINFO(bones);
 873         SWAPLUMPINFO(vertbonecounts);
 874         SWAPLUMPINFO(verts);
 875         SWAPLUMPINFO(texcoords);
 876         SWAPLUMPINFO(render);
 877         SWAPLUMPINFO(shaders);
 878         SWAPLUMPINFO(trizone);
 879
 880         loadmodel->flags = 0; // there are no flags
 881         loadmodel->numframes = pheader->numscenes;
 882         loadmodel->synctype = ST_SYNC;
 883         loadmodel->numtris = pheader->numtris;
 884
 885         // FIXME: add skin support and texturing and shaders and...
 886         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) + sizeof(skinframe_t));
 887         loadmodel->skinscenes[0].firstframe = 0;
 888         loadmodel->skinscenes[0].framecount = 1;
 889         loadmodel->skinscenes[0].loop = true;
 890         loadmodel->skinscenes[0].framerate = 10;
 891         loadmodel->skinframes = (void *)(loadmodel->skinscenes + 1);
 892         loadmodel->skinframes->base = NULL;
 893         loadmodel->skinframes->fog = NULL;
 894         loadmodel->skinframes->pants = NULL;
 895         loadmodel->skinframes->shirt = NULL;
 896         loadmodel->skinframes->glow = NULL;
 897         loadmodel->skinframes->merged = NULL;
 898         loadmodel->numskins = 1;
 899         numposes = pheader->lump_poses.length / sizeof(float[3][4]) / pheader->numbones;
 900
 901         // go through the lumps, swapping things
 902
 903 //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
 904         scene = (void *) (pheader->lump_scenes.start + pbase);
 905         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 906         for (i = 0;i < pheader->numscenes;i++)
 907         {
 908                 SWAPVEC(scene->mins);
 909                 SWAPVEC(scene->maxs);
 910                 SWAPFLOAT(scene->radius);
 911                 SWAPFLOAT(scene->framerate);
 912                 SWAPLONG(scene->flags);
 913                 SWAPLONG(scene->start);
 914                 SWAPLONG(scene->length);
 915
 916                 memcpy(loadmodel->animscenes[i].name, scene->name, 32);
 917                 loadmodel->animscenes[i].firstframe = scene->start;
 918                 loadmodel->animscenes[i].framecount = scene->length;
 919                 loadmodel->animscenes[i].framerate = scene->framerate;
 920                 loadmodel->animscenes[i].loop = (scene->flags & ZYMSCENEFLAG_NOLOOP) == 0;
 921
 922                 if ((unsigned int) loadmodel->animscenes[i].firstframe >= numposes)
 923                         Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
 924                 if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > numposes)
 925                         Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
 926                 if (loadmodel->animscenes[i].framerate < 0)
 927                         Host_Error("Mod_LoadZymoticModel: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
 928                 scene++;
 929         }
 930
 931 //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
 932         zymswapintblock((void *) (pheader->lump_poses.start + pbase), pheader->lump_poses.length);
 933
 934 //      zymlump_t lump_bones; // zymbone_t bone[numbones];
 935         bone = (void *) (pheader->lump_bones.start + pbase);
 936         for (i = 0;i < pheader->numbones;i++)
 937         {
 938                 SWAPLONG(bone[i].flags);
 939                 SWAPLONG(bone[i].parent);
 940                 if (bone[i].parent >= i)
 941                         Host_Error("Mod_LoadZymoticModel: bone[i].parent >= i in %s\n", loadmodel->name);
 942         }
 943
 944 //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
 945         zymswapintblock((void *) (pheader->lump_vertbonecounts.start + pbase), pheader->lump_vertbonecounts.length);
 946         bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
 947         for (i = 0;i < pheader->numbones;i++)
 948                 if (bonecount[i] < 1)
 949                         Host_Error("Mod_LoadZymoticModel: bone vertex count < 1 in %s\n", loadmodel->name);
 950
 951 //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
 952         zymswapintblock((void *) (pheader->lump_verts.start + pbase), pheader->lump_verts.length);
 953
 954 //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
 955         zymswapintblock((void *) (pheader->lump_texcoords.start + pbase), pheader->lump_texcoords.length);
 956
 957 //      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)
 958         zymswapintblock((void *) (pheader->lump_render.start + pbase), pheader->lump_render.length);
 959         // validate renderlist and swap winding order of tris
 960         renderlist = (void *) (pheader->lump_render.start + pbase);
 961         renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
 962         i = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
 963         if (pheader->lump_render.length != i)
 964                 Host_Error("Mod_LoadZymoticModel: renderlist is wrong size in %s (is %i bytes, should be %i bytes)\n", loadmodel->name, pheader->lump_render.length, i);
 965         for (i = 0;i < pheader->numshaders;i++)
 966         {
 967                 if (renderlist >= renderlistend)
 968                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
 969                 count = *renderlist++;
 970                 if (renderlist + count * 3 > renderlistend)
 971                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
 972                 while (count--)
 973                 {
 974                         a = renderlist[0];
 975                         b = renderlist[1];
 976                         c = renderlist[2];
 977                         if (a >= pheader->numverts || b >= pheader->numverts || c >= pheader->numverts)
 978                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
 979                         renderlist[0] = c;
 980                         renderlist[1] = b;
 981                         renderlist[2] = a;
 982                         renderlist += 3;
 983                 }
 984         }
 985
 986 //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
 987         shadername = (void *) (pheader->lump_shaders.start + pbase);
 988         texture = (void *) shadername;
 989         for (i = 0;i < pheader->numshaders;i++)
 990         {
 991                 rtexture_t *rt;
 992                 rt = loadtextureimage(loadmodel->texturepool, shadername, 0, 0, true, r_mipskins.integer, true);
 993                 shadername += 32;
 994                 *texture++ = rt; // reuse shader name list for texture pointers
 995         }
 996
 997 //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
 998         zymswapintblock((void *) (pheader->lump_trizone.start + pbase), pheader->lump_trizone.length);
 999
1000         // model bbox
1001         modelradius = pheader->radius;
1002         for (i = 0;i < 3;i++)
1003         {
1004                 loadmodel->normalmins[i] = pheader->mins[i];
1005                 loadmodel->normalmaxs[i] = pheader->maxs[i];
1006                 loadmodel->rotatedmins[i] = -modelradius;
1007                 loadmodel->rotatedmaxs[i] = modelradius;
1008         }
1009         corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
1010         corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
1011         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
1012         if (loadmodel->yawmaxs[0] > modelradius)
1013                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
1014         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
1015         loadmodel->yawmins[2] = loadmodel->normalmins[2];
1016         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
1017         loadmodel->radius = modelradius;
1018         loadmodel->radius2 = modelradius * modelradius;
1019
1020         loadmodel->DrawSky = NULL;
1021         loadmodel->Draw = R_Model_Zymotic_Draw;
1022         loadmodel->DrawFakeShadow = NULL;//R_Model_Zymotic_DrawFakeShadow;
1023         loadmodel->DrawDepth = NULL;//R_Model_Zymotic_DrawDepth;
1024         loadmodel->DrawShadowVolume = NULL;//R_Model_Zymotic_DrawShadowVolume;
1025         loadmodel->DrawLight = NULL;//R_Model_Zymotic_DrawLight;
1026         loadmodel->DrawOntoLight = NULL;//R_Model_Zymotic_DrawOntoLight;
1027 }