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 void Mod_LoadAliasModel (model_t *mod, void *buffer)
 252 {
 253         int                                             i, j, version, numverts, totalposes, totalskins, skinwidth, skinheight, totalverts, groupframes, groupskins;
 254         mdl_t                                   *pinmodel;
 255         stvert_t                                *pinstverts;
 256         dtriangle_t                             *pintriangles;
 257         daliasskintype_t                *pinskintype;
 258         daliasskingroup_t               *pinskingroup;
 259         daliasskininterval_t    *pinskinintervals;
 260         daliasframetype_t               *pinframetype;
 261         daliasgroup_t                   *pinframegroup;
 262         float                                   scales, scalet, scale[3], translate[3], interval;
 263         qbyte                                   *datapointer, *startframes, *startskins;
 264         char                                    name[MAX_QPATH];
 265         qbyte                                   *skintemp = NULL;
 266         skinframe_t                             tempskinframe;
 267         animscene_t                             *tempskinscenes;
 268         skinframe_t                             *tempskinframes;
 269         modelyawradius = 0;
 270         modelradius = 0;
 271
 272         datapointer = buffer;
 273         pinmodel = (mdl_t *)datapointer;
 274         datapointer += sizeof(mdl_t);
 275
 276         version = LittleLong (pinmodel->version);
 277         if (version != ALIAS_VERSION)
 278                 Host_Error ("%s has wrong version number (%i should be %i)",
 279                                  loadmodel->name, version, ALIAS_VERSION);
 280
 281         loadmodel->type = mod_alias;
 282         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 283
 284         loadmodel->numskins = LittleLong(pinmodel->numskins);
 285         BOUNDI(loadmodel->numskins,0,256);
 286         skinwidth = LittleLong (pinmodel->skinwidth);
 287         BOUNDI(skinwidth,0,4096);
 288         skinheight = LittleLong (pinmodel->skinheight);
 289         BOUNDI(skinheight,0,4096);
 290         loadmodel->numverts = numverts = LittleLong(pinmodel->numverts);
 291         BOUNDI(loadmodel->numverts,0,MAXALIASVERTS);
 292         loadmodel->numtris = LittleLong(pinmodel->numtris);
 293         BOUNDI(loadmodel->numtris,0,MAXALIASTRIS);
 294         loadmodel->numframes = LittleLong(pinmodel->numframes);
 295         BOUNDI(loadmodel->numframes,0,65536);
 296         loadmodel->synctype = LittleLong (pinmodel->synctype);
 297         BOUNDI(loadmodel->synctype,0,2);
 298         loadmodel->flags = LittleLong (pinmodel->flags);
 299
 300         for (i = 0;i < 3;i++)
 301         {
 302                 scale[i] = LittleFloat (pinmodel->scale[i]);
 303                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 304         }
 305
 306         startskins = datapointer;
 307         totalskins = 0;
 308         for (i = 0;i < loadmodel->numskins;i++)
 309         {
 310                 pinskintype = (daliasskintype_t *)datapointer;
 311                 datapointer += sizeof(daliasskintype_t);
 312                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 313                         groupskins = 1;
 314                 else
 315                 {
 316                         pinskingroup = (daliasskingroup_t *)datapointer;
 317                         datapointer += sizeof(daliasskingroup_t);
 318                         groupskins = LittleLong(pinskingroup->numskins);
 319                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 320                 }
 321
 322                 for (j = 0;j < groupskins;j++)
 323                 {
 324                         datapointer += skinwidth * skinheight;
 325                         totalskins++;
 326                 }
 327         }
 328
 329         pinstverts = (stvert_t *)datapointer;
 330         datapointer += sizeof(stvert_t) * numverts;
 331
 332         pintriangles = (dtriangle_t *)datapointer;
 333         datapointer += sizeof(dtriangle_t) * loadmodel->numtris;
 334
 335         startframes = datapointer;
 336         totalposes = 0;
 337         for (i = 0;i < loadmodel->numframes;i++)
 338         {
 339                 pinframetype = (daliasframetype_t *)datapointer;
 340                 datapointer += sizeof(daliasframetype_t);
 341                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 342                         groupframes = 1;
 343                 else
 344                 {
 345                         pinframegroup = (daliasgroup_t *)datapointer;
 346                         datapointer += sizeof(daliasgroup_t);
 347                         groupframes = LittleLong(pinframegroup->numframes);
 348                         datapointer += sizeof(daliasinterval_t) * groupframes;
 349                 }
 350
 351                 for (j = 0;j < groupframes;j++)
 352                 {
 353                         datapointer += sizeof(daliasframe_t);
 354                         datapointer += sizeof(trivertx_t) * numverts;
 355                         totalposes++;
 356                 }
 357         }
 358
 359         // load the skins
 360         skintemp = Mem_Alloc(tempmempool, skinwidth * skinheight);
 361         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 362         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, totalskins * sizeof(skinframe_t));
 363         totalskins = 0;
 364         datapointer = startskins;
 365         for (i = 0;i < loadmodel->numskins;i++)
 366         {
 367                 pinskintype = (daliasskintype_t *)datapointer;
 368                 datapointer += sizeof(daliasskintype_t);
 369
 370                 if (pinskintype->type == ALIAS_SKIN_SINGLE)
 371                 {
 372                         groupskins = 1;
 373                         interval = 0.1f;
 374                 }
 375                 else
 376                 {
 377                         pinskingroup = (daliasskingroup_t *)datapointer;
 378                         datapointer += sizeof(daliasskingroup_t);
 379
 380                         groupskins = LittleLong (pinskingroup->numskins);
 381
 382                         pinskinintervals = (daliasskininterval_t *)datapointer;
 383                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 384
 385                         interval = LittleFloat(pinskinintervals[0].interval);
 386                         if (interval < 0.01f)
 387                                 Host_Error("Mod_LoadAliasModel: invalid interval\n");
 388                 }
 389
 390                 sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 391                 loadmodel->skinscenes[i].firstframe = totalskins;
 392                 loadmodel->skinscenes[i].framecount = groupskins;
 393                 loadmodel->skinscenes[i].framerate = 1.0f / interval;
 394                 loadmodel->skinscenes[i].loop = true;
 395
 396                 for (j = 0;j < groupskins;j++)
 397                 {
 398                         if (groupskins > 1)
 399                                 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 400                         else
 401                                 sprintf (name, "%s_%i", loadmodel->name, i);
 402                         if (!Mod_LoadExternalSkin(name, loadmodel->skinframes + totalskins, i == 0))
 403                                 Mod_LoadInternalSkin(name, (qbyte *)datapointer, skintemp, skinwidth, skinheight, loadmodel->skinframes + totalskins, i == 0);
 404                         datapointer += skinwidth * skinheight;
 405                         totalskins++;
 406                 }
 407         }
 408         Mem_Free(skintemp);
 409         // check for skins that don't exist in the model, but do exist as external images
 410         // (this was added because yummyluv kept pestering me about support for it)
 411         for (;;)
 412         {
 413                 sprintf (name, "%s_%i", loadmodel->name, loadmodel->numskins);
 414                 if (Mod_LoadExternalSkin(name, &tempskinframe, loadmodel->numskins == 0))
 415                 {
 416                         // expand the arrays to make room
 417                         tempskinscenes = loadmodel->skinscenes;
 418                         tempskinframes = loadmodel->skinframes;
 419                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 420                         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(skinframe_t));
 421                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 422                         memcpy(loadmodel->skinframes, tempskinframes, totalskins * sizeof(skinframe_t));
 423                         Mem_Free(tempskinscenes);
 424                         Mem_Free(tempskinframes);
 425                         // store the info about the new skin
 426                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 427                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 428                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 429                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 430                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 431                         loadmodel->skinframes[totalskins] = tempskinframe;
 432                         loadmodel->numskins++;
 433                         totalskins++;
 434                 }
 435                 else
 436                         break;
 437         }
 438
 439         // store texture coordinates into temporary array, they will be stored after usage is determined (triangle data)
 440         scales = 1.0 / skinwidth;
 441         scalet = 1.0 / skinheight;
 442         for (i = 0;i < numverts;i++)
 443         {
 444                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 445                 vertst[i][0] = LittleLong(pinstverts[i].s) * scales;
 446                 vertst[i][1] = LittleLong(pinstverts[i].t) * scalet;
 447                 vertst[i+numverts][0] = vertst[i][0] + 0.5;
 448                 vertst[i+numverts][1] = vertst[i][1];
 449                 vertusage[i] = 0;
 450                 vertusage[i+numverts] = 0;
 451         }
 452
 453 // load triangle data
 454         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->numtris);
 455
 456         // count the vertices used
 457         for (i = 0;i < numverts*2;i++)
 458                 vertusage[i] = 0;
 459         for (i = 0;i < loadmodel->numtris;i++)
 460         {
 461                 temptris[i][0] = LittleLong(pintriangles[i].vertindex[0]);
 462                 temptris[i][1] = LittleLong(pintriangles[i].vertindex[1]);
 463                 temptris[i][2] = LittleLong(pintriangles[i].vertindex[2]);
 464                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 465                 {
 466                         if (vertonseam[temptris[i][0]]) temptris[i][0] += numverts;
 467                         if (vertonseam[temptris[i][1]]) temptris[i][1] += numverts;
 468                         if (vertonseam[temptris[i][2]]) temptris[i][2] += numverts;
 469                 }
 470                 vertusage[temptris[i][0]]++;
 471                 vertusage[temptris[i][1]]++;
 472                 vertusage[temptris[i][2]]++;
 473         }
 474         // build remapping table and compact array
 475         totalverts = 0;
 476         for (i = 0;i < numverts*2;i++)
 477         {
 478                 if (vertusage[i])
 479                 {
 480                         vertremap[i] = totalverts;
 481                         vertst[totalverts][0] = vertst[i][0];
 482                         vertst[totalverts][1] = vertst[i][1];
 483                         totalverts++;
 484                 }
 485                 else
 486                         vertremap[i] = -1; // not used at all
 487         }
 488         loadmodel->numverts = totalverts;
 489         // remap the triangle references
 490         for (i = 0;i < loadmodel->numtris;i++)
 491         {
 492                 loadmodel->mdlmd2data_indices[i*3+0] = vertremap[temptris[i][0]];
 493                 loadmodel->mdlmd2data_indices[i*3+1] = vertremap[temptris[i][1]];
 494                 loadmodel->mdlmd2data_indices[i*3+2] = vertremap[temptris[i][2]];
 495         }
 496         // store the texture coordinates
 497         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * totalverts);
 498         for (i = 0;i < totalverts;i++)
 499         {
 500                 loadmodel->mdlmd2data_texcoords[i*2+0] = vertst[i][0];
 501                 loadmodel->mdlmd2data_texcoords[i*2+1] = vertst[i][1];
 502         }
 503
 504 // load the frames
 505         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 506         loadmodel->mdlmd2data_frames = Mem_Alloc(loadmodel->mempool, sizeof(md2frame_t) * totalposes);
 507         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, sizeof(trivertx_t) * totalposes * totalverts);
 508
 509         // LordHavoc: doing proper bbox for model
 510         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 511         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 512
 513         Mod_MDL_LoadFrames (startframes, numverts, totalverts, scale, translate);
 514
 515         modelyawradius = sqrt(modelyawradius);
 516         modelradius = sqrt(modelradius);
 517         for (j = 0;j < 3;j++)
 518         {
 519                 loadmodel->normalmins[j] = aliasbboxmin[j];
 520                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 521                 loadmodel->rotatedmins[j] = -modelradius;
 522                 loadmodel->rotatedmaxs[j] = modelradius;
 523         }
 524         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 525         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 526         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 527
 528         loadmodel->Draw = R_DrawQ1Q2AliasModel;
 529         loadmodel->DrawSky = NULL;
 530         loadmodel->DrawFakeShadow = R_DrawQ1Q2AliasModelFakeShadow;
 531
 532         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 533         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 534 }
 535
 536 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, trivertx_t *out, int *vertremap)
 537 {
 538         int i, invalidnormals = 0;
 539         float dist;
 540         trivertx_t *in;
 541         vec3_t temp;
 542         for (i = 0;i < loadmodel->numverts;i++)
 543         {
 544                 in = v + vertremap[i];
 545                 VectorCopy(in->v, out[i].v);
 546                 temp[0] = in->v[0] * scale[0] + translate[0];
 547                 temp[1] = in->v[1] * scale[1] + translate[1];
 548                 temp[2] = in->v[2] * scale[2] + translate[2];
 549                 // update bounding box
 550                 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
 551                 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
 552                 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
 553                 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
 554                 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
 555                 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
 556                 dist = temp[0]*temp[0]+temp[1]*temp[1];
 557                 if (modelyawradius < dist)
 558                         modelyawradius = dist;
 559                 dist += temp[2]*temp[2];
 560                 if (modelradius < dist)
 561                         modelradius = dist;
 562                 out[i].lightnormalindex = in->lightnormalindex;
 563                 if (out[i].lightnormalindex >= NUMVERTEXNORMALS)
 564                 {
 565                         invalidnormals++;
 566                         out[i].lightnormalindex = 0;
 567                 }
 568         }
 569         if (invalidnormals)
 570                 Con_Printf("Mod_MD2_ConvertVerts: \"%s\", %i invalid normal indices found\n", loadmodel->name, invalidnormals);
 571 }
 572
 573 void Mod_LoadQ2AliasModel (model_t *mod, void *buffer)
 574 {
 575         int *vertremap;
 576         md2_t *pinmodel;
 577         qbyte *base;
 578         int version, end;
 579         int i, j, k, hashindex, num, numxyz, numst, xyz, st;
 580         float *stverts, s, t;
 581         struct md2verthash_s
 582         {
 583                 struct md2verthash_s *next;
 584                 int xyz;
 585                 float st[2];
 586         }
 587         *hash, **md2verthash, *md2verthashdata;
 588         qbyte *datapointer;
 589         md2frame_t *pinframe;
 590         char *inskin;
 591         md2triangle_t *intri;
 592         unsigned short *inst;
 593         int skinwidth, skinheight;
 594
 595         pinmodel = buffer;
 596         base = buffer;
 597
 598         version = LittleLong (pinmodel->version);
 599         if (version != MD2ALIAS_VERSION)
 600                 Host_Error ("%s has wrong version number (%i should be %i)",
 601                         loadmodel->name, version, MD2ALIAS_VERSION);
 602
 603         loadmodel->type = mod_alias;
 604         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 605         loadmodel->Draw = R_DrawQ1Q2AliasModel;
 606         loadmodel->DrawSky = NULL;
 607         loadmodel->DrawFakeShadow = NULL;
 608
 609         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > MD2MAX_TRIANGLES)
 610                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 611         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > MD2MAX_VERTS)
 612                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 613         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > MD2MAX_FRAMES)
 614                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 615         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > MAX_SKINS)
 616                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 617
 618         end = LittleLong(pinmodel->ofs_end);
 619         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
 620                 Host_Error ("%s is not a valid model", loadmodel->name);
 621         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
 622                 Host_Error ("%s is not a valid model", loadmodel->name);
 623         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
 624                 Host_Error ("%s is not a valid model", loadmodel->name);
 625         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
 626                 Host_Error ("%s is not a valid model", loadmodel->name);
 627         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
 628                 Host_Error ("%s is not a valid model", loadmodel->name);
 629
 630         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 631         numxyz = LittleLong(pinmodel->num_xyz);
 632         numst = LittleLong(pinmodel->num_st);
 633         loadmodel->numtris = LittleLong(pinmodel->num_tris);
 634         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 635
 636         loadmodel->flags = 0; // there are no MD2 flags
 637         loadmodel->synctype = ST_RAND;
 638
 639         // load the skins
 640         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 641         if (loadmodel->numskins)
 642         {
 643                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 644                 loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, sizeof(skinframe_t) * loadmodel->numskins);
 645                 for (i = 0;i < loadmodel->numskins;i++)
 646                 {
 647                         loadmodel->skinscenes[i].firstframe = i;
 648                         loadmodel->skinscenes[i].framecount = 1;
 649                         loadmodel->skinscenes[i].loop = true;
 650                         loadmodel->skinscenes[i].framerate = 10;
 651                         loadmodel->skinframes[i].base = loadtextureimagewithmask (loadmodel->texturepool, inskin, 0, 0, true, r_mipskins.integer, true);
 652                         loadmodel->skinframes[i].fog = image_masktex;
 653                         loadmodel->skinframes[i].pants = NULL;
 654                         loadmodel->skinframes[i].shirt = NULL;
 655                         loadmodel->skinframes[i].glow = NULL;
 656                         loadmodel->skinframes[i].merged = NULL;
 657                         inskin += MD2MAX_SKINNAME;
 658                 }
 659         }
 660
 661         // load the triangles and stvert data
 662         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 663         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 664         skinwidth = LittleLong(pinmodel->skinwidth);
 665         skinheight = LittleLong(pinmodel->skinheight);
 666
 667         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 668         s = 1.0f / skinwidth;
 669         t = 1.0f / skinheight;
 670         for (i = 0;i < numst;i++)
 671         {
 672                 j = (unsigned short) LittleShort(inst[i*2+0]);
 673                 k = (unsigned short) LittleShort(inst[i*2+1]);
 674                 if (j >= skinwidth || k >= skinheight)
 675                 {
 676                         Mem_Free(stverts);
 677                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
 678                 }
 679                 stverts[i*2+0] = j * s;
 680                 stverts[i*2+1] = k * t;
 681         }
 682
 683         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 684         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->numtris * 3 * sizeof(*hash));
 685         // swap the triangle list
 686         num = 0;
 687         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 688         for (i = 0;i < loadmodel->numtris;i++)
 689         {
 690                 for (j = 0;j < 3;j++)
 691                 {
 692                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 693                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 694                         if (xyz >= numxyz || st >= numst)
 695                         {
 696                                 Mem_Free(md2verthash);
 697                                 Mem_Free(md2verthashdata);
 698                                 Mem_Free(stverts);
 699                                 if (xyz >= numxyz)
 700                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
 701                                 if (st >= numst)
 702                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
 703                         }
 704                         s = stverts[st*2+0];
 705                         t = stverts[st*2+1];
 706                         hashindex = (xyz * 17 + st) & 255;
 707                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 708                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 709                                         break;
 710                         if (hash == NULL)
 711                         {
 712                                 hash = md2verthashdata + num++;
 713                                 hash->xyz = xyz;
 714                                 hash->st[0] = s;
 715                                 hash->st[1] = t;
 716                                 hash->next = md2verthash[hashindex];
 717                                 md2verthash[hashindex] = hash;
 718                         }
 719                         loadmodel->mdlmd2data_indices[i*3+j] = (hash - md2verthashdata);
 720                 }
 721         }
 722
 723         Mem_Free(stverts);
 724
 725         loadmodel->numverts = num;
 726         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 727         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
 728         for (i = 0;i < num;i++)
 729         {
 730                 hash = md2verthashdata + i;
 731                 vertremap[i] = hash->xyz;
 732                 loadmodel->mdlmd2data_texcoords[i*2+0] = hash->st[0];
 733                 loadmodel->mdlmd2data_texcoords[i*2+1] = hash->st[1];
 734         }
 735
 736         Mem_Free(md2verthash);
 737         Mem_Free(md2verthashdata);
 738
 739         // load frames
 740         // LordHavoc: doing proper bbox for model
 741         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 742         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 743         modelyawradius = 0;
 744         modelradius = 0;
 745
 746         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 747         // load the frames
 748         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 749         loadmodel->mdlmd2data_frames = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(md2frame_t));
 750         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, loadmodel->numverts * loadmodel->numframes * sizeof(trivertx_t));
 751
 752         for (i = 0;i < loadmodel->numframes;i++)
 753         {
 754                 pinframe = (md2frame_t *)datapointer;
 755                 datapointer += sizeof(md2frame_t);
 756                 strcpy(loadmodel->mdlmd2data_frames[i].name, pinframe->name);
 757                 for (j = 0;j < 3;j++)
 758                 {
 759                         loadmodel->mdlmd2data_frames[i].scale[j] = LittleFloat(pinframe->scale[j]);
 760                         loadmodel->mdlmd2data_frames[i].translate[j] = LittleFloat(pinframe->translate[j]);
 761                 }
 762                 Mod_MD2_ConvertVerts (loadmodel->mdlmd2data_frames[i].scale, loadmodel->mdlmd2data_frames[i].translate, (void *)datapointer, &loadmodel->mdlmd2data_pose[i * loadmodel->numverts], vertremap);
 763                 datapointer += numxyz * sizeof(trivertx_t);
 764
 765                 strcpy(loadmodel->animscenes[i].name, loadmodel->mdlmd2data_frames[i].name);
 766                 loadmodel->animscenes[i].firstframe = i;
 767                 loadmodel->animscenes[i].framecount = 1;
 768                 loadmodel->animscenes[i].framerate = 10;
 769                 loadmodel->animscenes[i].loop = true;
 770         }
 771
 772         Mem_Free(vertremap);
 773
 774         // LordHavoc: model bbox
 775         modelyawradius = sqrt(modelyawradius);
 776         modelradius = sqrt(modelradius);
 777         for (j = 0;j < 3;j++)
 778         {
 779                 loadmodel->normalmins[j] = aliasbboxmin[j];
 780                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 781                 loadmodel->rotatedmins[j] = -modelradius;
 782                 loadmodel->rotatedmaxs[j] = modelradius;
 783         }
 784         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 785         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 786         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 787
 788         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 789         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 790 }
 791
 792 static void zymswapintblock(int *m, int size)
 793 {
 794         size /= 4;
 795         while(size--)
 796         {
 797                 *m = BigLong(*m);
 798                 m++;
 799         }
 800 }
 801
 802 void Mod_LoadZymoticModel(model_t *mod, void *buffer)
 803 {
 804         int i, pbase, *bonecount, numposes;
 805         unsigned int count, a, b, c, *renderlist, *renderlistend;
 806         rtexture_t **texture;
 807         char *shadername;
 808         zymtype1header_t *pinmodel, *pheader;
 809         zymscene_t *scene;
 810         zymbone_t *bone;
 811         float corner[2], modelradius;
 812
 813         pinmodel = (void *)buffer;
 814
 815         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
 816                 Host_Error ("Mod_LoadZymoticModel: %s is not a zymotic model\n");
 817
 818         if (BigLong(pinmodel->type) != 1)
 819                 Host_Error ("Mod_LoadZymoticModel: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
 820
 821         loadmodel->type = mod_alias;
 822         loadmodel->aliastype = ALIASTYPE_ZYM;
 823
 824         loadmodel->zymdata_header = pheader = Mem_Alloc(loadmodel->mempool, BigLong(pinmodel->filesize));
 825
 826         pbase = (int) pheader;
 827
 828         memcpy(pheader, pinmodel, BigLong(pinmodel->filesize));
 829
 830         // byteswap header
 831 #define SWAPLONG(var) var = BigLong(var)
 832 #define SWAPFLOAT(var) var = BigFloat(var)
 833 #define SWAPVEC(var) SWAPFLOAT(var[0]);SWAPFLOAT(var[1]);SWAPFLOAT(var[2])
 834         SWAPLONG(pheader->type);
 835         SWAPLONG(pheader->filesize);
 836         SWAPVEC(pheader->mins);
 837         SWAPVEC(pheader->maxs);
 838         SWAPFLOAT(pheader->radius);
 839         SWAPLONG(pheader->numverts);
 840         SWAPLONG(pheader->numtris);
 841         SWAPLONG(pheader->numshaders);
 842         SWAPLONG(pheader->numbones);
 843         SWAPLONG(pheader->numscenes);
 844
 845 #define SWAPLUMPINFO(var) SWAPLONG(pheader->lump_##var.start);SWAPLONG(pheader->lump_##var.length)
 846         SWAPLUMPINFO(scenes);
 847         SWAPLUMPINFO(poses);
 848         SWAPLUMPINFO(bones);
 849         SWAPLUMPINFO(vertbonecounts);
 850         SWAPLUMPINFO(verts);
 851         SWAPLUMPINFO(texcoords);
 852         SWAPLUMPINFO(render);
 853         SWAPLUMPINFO(shaders);
 854         SWAPLUMPINFO(trizone);
 855
 856         loadmodel->flags = 0; // there are no flags
 857         loadmodel->numframes = pheader->numscenes;
 858         loadmodel->synctype = ST_SYNC;
 859         loadmodel->numtris = pheader->numtris;
 860
 861         // FIXME: add skin support and texturing and shaders and...
 862         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) + sizeof(skinframe_t));
 863         loadmodel->skinscenes[0].firstframe = 0;
 864         loadmodel->skinscenes[0].framecount = 1;
 865         loadmodel->skinscenes[0].loop = true;
 866         loadmodel->skinscenes[0].framerate = 10;
 867         loadmodel->skinframes = (void *)(loadmodel->skinscenes + 1);
 868         loadmodel->skinframes->base = NULL;
 869         loadmodel->skinframes->fog = NULL;
 870         loadmodel->skinframes->pants = NULL;
 871         loadmodel->skinframes->shirt = NULL;
 872         loadmodel->skinframes->glow = NULL;
 873         loadmodel->skinframes->merged = NULL;
 874         loadmodel->numskins = 1;
 875         numposes = pheader->lump_poses.length / sizeof(float[3][4]) / pheader->numbones;
 876
 877         // go through the lumps, swapping things
 878
 879 //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
 880         scene = (void *) (pheader->lump_scenes.start + pbase);
 881         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 882         for (i = 0;i < pheader->numscenes;i++)
 883         {
 884                 SWAPVEC(scene->mins);
 885                 SWAPVEC(scene->maxs);
 886                 SWAPFLOAT(scene->radius);
 887                 SWAPFLOAT(scene->framerate);
 888                 SWAPLONG(scene->flags);
 889                 SWAPLONG(scene->start);
 890                 SWAPLONG(scene->length);
 891
 892                 memcpy(loadmodel->animscenes[i].name, scene->name, 32);
 893                 loadmodel->animscenes[i].firstframe = scene->start;
 894                 loadmodel->animscenes[i].framecount = scene->length;
 895                 loadmodel->animscenes[i].framerate = scene->framerate;
 896                 loadmodel->animscenes[i].loop = (scene->flags & ZYMSCENEFLAG_NOLOOP) == 0;
 897
 898                 if ((unsigned int) loadmodel->animscenes[i].firstframe >= numposes)
 899                         Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
 900                 if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > numposes)
 901                         Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
 902                 if (loadmodel->animscenes[i].framerate < 0)
 903                         Host_Error("Mod_LoadZymoticModel: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
 904                 scene++;
 905         }
 906
 907 //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
 908         zymswapintblock((void *) (pheader->lump_poses.start + pbase), pheader->lump_poses.length);
 909
 910 //      zymlump_t lump_bones; // zymbone_t bone[numbones];
 911         bone = (void *) (pheader->lump_bones.start + pbase);
 912         for (i = 0;i < pheader->numbones;i++)
 913         {
 914                 SWAPLONG(bone[i].flags);
 915                 SWAPLONG(bone[i].parent);
 916                 if (bone[i].parent >= i)
 917                         Host_Error("Mod_LoadZymoticModel: bone[i].parent >= i in %s\n", loadmodel->name);
 918         }
 919
 920 //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
 921         zymswapintblock((void *) (pheader->lump_vertbonecounts.start + pbase), pheader->lump_vertbonecounts.length);
 922         bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
 923         for (i = 0;i < pheader->numbones;i++)
 924                 if (bonecount[i] < 1)
 925                         Host_Error("Mod_LoadZymoticModel: bone vertex count < 1 in %s\n", loadmodel->name);
 926
 927 //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
 928         zymswapintblock((void *) (pheader->lump_verts.start + pbase), pheader->lump_verts.length);
 929
 930 //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
 931         zymswapintblock((void *) (pheader->lump_texcoords.start + pbase), pheader->lump_texcoords.length);
 932
 933 //      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)
 934         zymswapintblock((void *) (pheader->lump_render.start + pbase), pheader->lump_render.length);
 935         // validate renderlist and swap winding order of tris
 936         renderlist = (void *) (pheader->lump_render.start + pbase);
 937         renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
 938         i = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
 939         if (pheader->lump_render.length != i)
 940                 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);
 941         for (i = 0;i < pheader->numshaders;i++)
 942         {
 943                 if (renderlist >= renderlistend)
 944                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
 945                 count = *renderlist++;
 946                 if (renderlist + count * 3 > renderlistend)
 947                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
 948                 while (count--)
 949                 {
 950                         a = renderlist[0];
 951                         b = renderlist[1];
 952                         c = renderlist[2];
 953                         if (a >= pheader->numverts || b >= pheader->numverts || c >= pheader->numverts)
 954                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
 955                         renderlist[0] = c;
 956                         renderlist[1] = b;
 957                         renderlist[2] = a;
 958                         renderlist += 3;
 959                 }
 960         }
 961
 962 //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
 963         shadername = (void *) (pheader->lump_shaders.start + pbase);
 964         texture = (void *) shadername;
 965         for (i = 0;i < pheader->numshaders;i++)
 966         {
 967                 rtexture_t *rt;
 968                 rt = loadtextureimage(loadmodel->texturepool, shadername, 0, 0, true, r_mipskins.integer, true);
 969                 shadername += 32;
 970                 *texture++ = rt; // reuse shader name list for texture pointers
 971         }
 972
 973 //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
 974         zymswapintblock((void *) (pheader->lump_trizone.start + pbase), pheader->lump_trizone.length);
 975
 976         // model bbox
 977         modelradius = pheader->radius;
 978         for (i = 0;i < 3;i++)
 979         {
 980                 loadmodel->normalmins[i] = pheader->mins[i];
 981                 loadmodel->normalmaxs[i] = pheader->maxs[i];
 982                 loadmodel->rotatedmins[i] = -modelradius;
 983                 loadmodel->rotatedmaxs[i] = modelradius;
 984         }
 985         corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
 986         corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
 987         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
 988         if (loadmodel->yawmaxs[0] > modelradius)
 989                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
 990         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
 991         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 992         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 993
 994         loadmodel->Draw = R_DrawZymoticModel;
 995         loadmodel->DrawSky = NULL;
 996         loadmodel->DrawFakeShadow = NULL;
 997 }