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_DrawQ1Q2AliasModelShadowVolume (entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int visiblevolume);
 252 void Mod_LoadAliasModel (model_t *mod, void *buffer)
 253 {
 254         int                                             i, j, version, numverts, totalposes, totalskins, skinwidth, skinheight, totalverts, groupframes, groupskins;
 255         mdl_t                                   *pinmodel;
 256         stvert_t                                *pinstverts;
 257         dtriangle_t                             *pintriangles;
 258         daliasskintype_t                *pinskintype;
 259         daliasskingroup_t               *pinskingroup;
 260         daliasskininterval_t    *pinskinintervals;
 261         daliasframetype_t               *pinframetype;
 262         daliasgroup_t                   *pinframegroup;
 263         float                                   scales, scalet, scale[3], translate[3], interval;
 264         qbyte                                   *datapointer, *startframes, *startskins;
 265         char                                    name[MAX_QPATH];
 266         qbyte                                   *skintemp = NULL;
 267         skinframe_t                             tempskinframe;
 268         animscene_t                             *tempskinscenes;
 269         skinframe_t                             *tempskinframes;
 270         modelyawradius = 0;
 271         modelradius = 0;
 272
 273         datapointer = buffer;
 274         pinmodel = (mdl_t *)datapointer;
 275         datapointer += sizeof(mdl_t);
 276
 277         version = LittleLong (pinmodel->version);
 278         if (version != ALIAS_VERSION)
 279                 Host_Error ("%s has wrong version number (%i should be %i)",
 280                                  loadmodel->name, version, ALIAS_VERSION);
 281
 282         loadmodel->type = mod_alias;
 283         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 284
 285         loadmodel->numskins = LittleLong(pinmodel->numskins);
 286         BOUNDI(loadmodel->numskins,0,256);
 287         skinwidth = LittleLong (pinmodel->skinwidth);
 288         BOUNDI(skinwidth,0,4096);
 289         skinheight = LittleLong (pinmodel->skinheight);
 290         BOUNDI(skinheight,0,4096);
 291         loadmodel->numverts = numverts = LittleLong(pinmodel->numverts);
 292         BOUNDI(loadmodel->numverts,0,MAXALIASVERTS);
 293         loadmodel->numtris = LittleLong(pinmodel->numtris);
 294         BOUNDI(loadmodel->numtris,0,MAXALIASTRIS);
 295         loadmodel->numframes = LittleLong(pinmodel->numframes);
 296         BOUNDI(loadmodel->numframes,0,65536);
 297         loadmodel->synctype = LittleLong (pinmodel->synctype);
 298         BOUNDI(loadmodel->synctype,0,2);
 299         loadmodel->flags = LittleLong (pinmodel->flags);
 300
 301         for (i = 0;i < 3;i++)
 302         {
 303                 scale[i] = LittleFloat (pinmodel->scale[i]);
 304                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 305         }
 306
 307         startskins = datapointer;
 308         totalskins = 0;
 309         for (i = 0;i < loadmodel->numskins;i++)
 310         {
 311                 pinskintype = (daliasskintype_t *)datapointer;
 312                 datapointer += sizeof(daliasskintype_t);
 313                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 314                         groupskins = 1;
 315                 else
 316                 {
 317                         pinskingroup = (daliasskingroup_t *)datapointer;
 318                         datapointer += sizeof(daliasskingroup_t);
 319                         groupskins = LittleLong(pinskingroup->numskins);
 320                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 321                 }
 322
 323                 for (j = 0;j < groupskins;j++)
 324                 {
 325                         datapointer += skinwidth * skinheight;
 326                         totalskins++;
 327                 }
 328         }
 329
 330         pinstverts = (stvert_t *)datapointer;
 331         datapointer += sizeof(stvert_t) * numverts;
 332
 333         pintriangles = (dtriangle_t *)datapointer;
 334         datapointer += sizeof(dtriangle_t) * loadmodel->numtris;
 335
 336         startframes = datapointer;
 337         totalposes = 0;
 338         for (i = 0;i < loadmodel->numframes;i++)
 339         {
 340                 pinframetype = (daliasframetype_t *)datapointer;
 341                 datapointer += sizeof(daliasframetype_t);
 342                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 343                         groupframes = 1;
 344                 else
 345                 {
 346                         pinframegroup = (daliasgroup_t *)datapointer;
 347                         datapointer += sizeof(daliasgroup_t);
 348                         groupframes = LittleLong(pinframegroup->numframes);
 349                         datapointer += sizeof(daliasinterval_t) * groupframes;
 350                 }
 351
 352                 for (j = 0;j < groupframes;j++)
 353                 {
 354                         datapointer += sizeof(daliasframe_t);
 355                         datapointer += sizeof(trivertx_t) * numverts;
 356                         totalposes++;
 357                 }
 358         }
 359
 360         // load the skins
 361         skintemp = Mem_Alloc(tempmempool, skinwidth * skinheight);
 362         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 363         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, totalskins * sizeof(skinframe_t));
 364         totalskins = 0;
 365         datapointer = startskins;
 366         for (i = 0;i < loadmodel->numskins;i++)
 367         {
 368                 pinskintype = (daliasskintype_t *)datapointer;
 369                 datapointer += sizeof(daliasskintype_t);
 370
 371                 if (pinskintype->type == ALIAS_SKIN_SINGLE)
 372                 {
 373                         groupskins = 1;
 374                         interval = 0.1f;
 375                 }
 376                 else
 377                 {
 378                         pinskingroup = (daliasskingroup_t *)datapointer;
 379                         datapointer += sizeof(daliasskingroup_t);
 380
 381                         groupskins = LittleLong (pinskingroup->numskins);
 382
 383                         pinskinintervals = (daliasskininterval_t *)datapointer;
 384                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 385
 386                         interval = LittleFloat(pinskinintervals[0].interval);
 387                         if (interval < 0.01f)
 388                                 Host_Error("Mod_LoadAliasModel: invalid interval\n");
 389                 }
 390
 391                 sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 392                 loadmodel->skinscenes[i].firstframe = totalskins;
 393                 loadmodel->skinscenes[i].framecount = groupskins;
 394                 loadmodel->skinscenes[i].framerate = 1.0f / interval;
 395                 loadmodel->skinscenes[i].loop = true;
 396
 397                 for (j = 0;j < groupskins;j++)
 398                 {
 399                         if (groupskins > 1)
 400                                 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 401                         else
 402                                 sprintf (name, "%s_%i", loadmodel->name, i);
 403                         if (!Mod_LoadExternalSkin(name, loadmodel->skinframes + totalskins, i == 0))
 404                                 Mod_LoadInternalSkin(name, (qbyte *)datapointer, skintemp, skinwidth, skinheight, loadmodel->skinframes + totalskins, i == 0);
 405                         datapointer += skinwidth * skinheight;
 406                         totalskins++;
 407                 }
 408         }
 409         Mem_Free(skintemp);
 410         // check for skins that don't exist in the model, but do exist as external images
 411         // (this was added because yummyluv kept pestering me about support for it)
 412         for (;;)
 413         {
 414                 sprintf (name, "%s_%i", loadmodel->name, loadmodel->numskins);
 415                 if (Mod_LoadExternalSkin(name, &tempskinframe, loadmodel->numskins == 0))
 416                 {
 417                         // expand the arrays to make room
 418                         tempskinscenes = loadmodel->skinscenes;
 419                         tempskinframes = loadmodel->skinframes;
 420                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 421                         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(skinframe_t));
 422                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 423                         memcpy(loadmodel->skinframes, tempskinframes, totalskins * sizeof(skinframe_t));
 424                         Mem_Free(tempskinscenes);
 425                         Mem_Free(tempskinframes);
 426                         // store the info about the new skin
 427                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 428                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 429                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 430                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 431                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 432                         loadmodel->skinframes[totalskins] = tempskinframe;
 433                         loadmodel->numskins++;
 434                         totalskins++;
 435                 }
 436                 else
 437                         break;
 438         }
 439
 440         // store texture coordinates into temporary array, they will be stored after usage is determined (triangle data)
 441         scales = 1.0 / skinwidth;
 442         scalet = 1.0 / skinheight;
 443         for (i = 0;i < numverts;i++)
 444         {
 445                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 446                 vertst[i][0] = LittleLong(pinstverts[i].s) * scales;
 447                 vertst[i][1] = LittleLong(pinstverts[i].t) * scalet;
 448                 vertst[i+numverts][0] = vertst[i][0] + 0.5;
 449                 vertst[i+numverts][1] = vertst[i][1];
 450                 vertusage[i] = 0;
 451                 vertusage[i+numverts] = 0;
 452         }
 453
 454 // load triangle data
 455         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->numtris);
 456
 457         // count the vertices used
 458         for (i = 0;i < numverts*2;i++)
 459                 vertusage[i] = 0;
 460         for (i = 0;i < loadmodel->numtris;i++)
 461         {
 462                 temptris[i][0] = LittleLong(pintriangles[i].vertindex[0]);
 463                 temptris[i][1] = LittleLong(pintriangles[i].vertindex[1]);
 464                 temptris[i][2] = LittleLong(pintriangles[i].vertindex[2]);
 465                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 466                 {
 467                         if (vertonseam[temptris[i][0]]) temptris[i][0] += numverts;
 468                         if (vertonseam[temptris[i][1]]) temptris[i][1] += numverts;
 469                         if (vertonseam[temptris[i][2]]) temptris[i][2] += numverts;
 470                 }
 471                 vertusage[temptris[i][0]]++;
 472                 vertusage[temptris[i][1]]++;
 473                 vertusage[temptris[i][2]]++;
 474         }
 475         // build remapping table and compact array
 476         totalverts = 0;
 477         for (i = 0;i < numverts*2;i++)
 478         {
 479                 if (vertusage[i])
 480                 {
 481                         vertremap[i] = totalverts;
 482                         vertst[totalverts][0] = vertst[i][0];
 483                         vertst[totalverts][1] = vertst[i][1];
 484                         totalverts++;
 485                 }
 486                 else
 487                         vertremap[i] = -1; // not used at all
 488         }
 489         loadmodel->numverts = totalverts;
 490         // remap the triangle references
 491         for (i = 0;i < loadmodel->numtris;i++)
 492         {
 493                 loadmodel->mdlmd2data_indices[i*3+0] = vertremap[temptris[i][0]];
 494                 loadmodel->mdlmd2data_indices[i*3+1] = vertremap[temptris[i][1]];
 495                 loadmodel->mdlmd2data_indices[i*3+2] = vertremap[temptris[i][2]];
 496         }
 497         // store the texture coordinates
 498         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * totalverts);
 499         for (i = 0;i < totalverts;i++)
 500         {
 501                 loadmodel->mdlmd2data_texcoords[i*2+0] = vertst[i][0];
 502                 loadmodel->mdlmd2data_texcoords[i*2+1] = vertst[i][1];
 503         }
 504
 505 // load the frames
 506         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 507         loadmodel->mdlmd2data_frames = Mem_Alloc(loadmodel->mempool, sizeof(md2frame_t) * totalposes);
 508         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, sizeof(trivertx_t) * totalposes * totalverts);
 509
 510         // LordHavoc: doing proper bbox for model
 511         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 512         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 513
 514         Mod_MDL_LoadFrames (startframes, numverts, totalverts, scale, translate);
 515
 516         modelyawradius = sqrt(modelyawradius);
 517         modelradius = sqrt(modelradius);
 518         for (j = 0;j < 3;j++)
 519         {
 520                 loadmodel->normalmins[j] = aliasbboxmin[j];
 521                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 522                 loadmodel->rotatedmins[j] = -modelradius;
 523                 loadmodel->rotatedmaxs[j] = modelradius;
 524         }
 525         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 526         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 527         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 528         loadmodel->radius = modelradius;
 529         loadmodel->radius2 = modelradius * modelradius;
 530
 531         loadmodel->Draw = R_DrawQ1Q2AliasModel;
 532         loadmodel->DrawSky = NULL;
 533         loadmodel->DrawFakeShadow = R_DrawQ1Q2AliasModelFakeShadow;
 534         loadmodel->DrawShadowVolume = R_DrawQ1Q2AliasModelShadowVolume;
 535
 536         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 537         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 538 }
 539
 540 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, trivertx_t *out, int *vertremap)
 541 {
 542         int i, invalidnormals = 0;
 543         float dist;
 544         trivertx_t *in;
 545         vec3_t temp;
 546         for (i = 0;i < loadmodel->numverts;i++)
 547         {
 548                 in = v + vertremap[i];
 549                 VectorCopy(in->v, out[i].v);
 550                 temp[0] = in->v[0] * scale[0] + translate[0];
 551                 temp[1] = in->v[1] * scale[1] + translate[1];
 552                 temp[2] = in->v[2] * scale[2] + translate[2];
 553                 // update bounding box
 554                 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
 555                 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
 556                 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
 557                 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
 558                 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
 559                 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
 560                 dist = temp[0]*temp[0]+temp[1]*temp[1];
 561                 if (modelyawradius < dist)
 562                         modelyawradius = dist;
 563                 dist += temp[2]*temp[2];
 564                 if (modelradius < dist)
 565                         modelradius = dist;
 566                 out[i].lightnormalindex = in->lightnormalindex;
 567                 if (out[i].lightnormalindex >= NUMVERTEXNORMALS)
 568                 {
 569                         invalidnormals++;
 570                         out[i].lightnormalindex = 0;
 571                 }
 572         }
 573         if (invalidnormals)
 574                 Con_Printf("Mod_MD2_ConvertVerts: \"%s\", %i invalid normal indices found\n", loadmodel->name, invalidnormals);
 575 }
 576
 577 void Mod_LoadQ2AliasModel (model_t *mod, void *buffer)
 578 {
 579         int *vertremap;
 580         md2_t *pinmodel;
 581         qbyte *base;
 582         int version, end;
 583         int i, j, k, hashindex, num, numxyz, numst, xyz, st;
 584         float *stverts, s, t;
 585         struct md2verthash_s
 586         {
 587                 struct md2verthash_s *next;
 588                 int xyz;
 589                 float st[2];
 590         }
 591         *hash, **md2verthash, *md2verthashdata;
 592         qbyte *datapointer;
 593         md2frame_t *pinframe;
 594         char *inskin;
 595         md2triangle_t *intri;
 596         unsigned short *inst;
 597         int skinwidth, skinheight;
 598
 599         pinmodel = buffer;
 600         base = buffer;
 601
 602         version = LittleLong (pinmodel->version);
 603         if (version != MD2ALIAS_VERSION)
 604                 Host_Error ("%s has wrong version number (%i should be %i)",
 605                         loadmodel->name, version, MD2ALIAS_VERSION);
 606
 607         loadmodel->type = mod_alias;
 608         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 609         loadmodel->Draw = R_DrawQ1Q2AliasModel;
 610         loadmodel->DrawSky = NULL;
 611         loadmodel->DrawFakeShadow = NULL;
 612
 613         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > MD2MAX_TRIANGLES)
 614                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 615         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > MD2MAX_VERTS)
 616                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 617         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > MD2MAX_FRAMES)
 618                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 619         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > MAX_SKINS)
 620                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 621
 622         end = LittleLong(pinmodel->ofs_end);
 623         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
 624                 Host_Error ("%s is not a valid model", loadmodel->name);
 625         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
 626                 Host_Error ("%s is not a valid model", loadmodel->name);
 627         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
 628                 Host_Error ("%s is not a valid model", loadmodel->name);
 629         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
 630                 Host_Error ("%s is not a valid model", loadmodel->name);
 631         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
 632                 Host_Error ("%s is not a valid model", loadmodel->name);
 633
 634         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 635         numxyz = LittleLong(pinmodel->num_xyz);
 636         numst = LittleLong(pinmodel->num_st);
 637         loadmodel->numtris = LittleLong(pinmodel->num_tris);
 638         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 639
 640         loadmodel->flags = 0; // there are no MD2 flags
 641         loadmodel->synctype = ST_RAND;
 642
 643         // load the skins
 644         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 645         if (loadmodel->numskins)
 646         {
 647                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 648                 loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, sizeof(skinframe_t) * loadmodel->numskins);
 649                 for (i = 0;i < loadmodel->numskins;i++)
 650                 {
 651                         loadmodel->skinscenes[i].firstframe = i;
 652                         loadmodel->skinscenes[i].framecount = 1;
 653                         loadmodel->skinscenes[i].loop = true;
 654                         loadmodel->skinscenes[i].framerate = 10;
 655                         loadmodel->skinframes[i].base = loadtextureimagewithmask (loadmodel->texturepool, inskin, 0, 0, true, r_mipskins.integer, true);
 656                         loadmodel->skinframes[i].fog = image_masktex;
 657                         loadmodel->skinframes[i].pants = NULL;
 658                         loadmodel->skinframes[i].shirt = NULL;
 659                         loadmodel->skinframes[i].glow = NULL;
 660                         loadmodel->skinframes[i].merged = NULL;
 661                         inskin += MD2MAX_SKINNAME;
 662                 }
 663         }
 664
 665         // load the triangles and stvert data
 666         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 667         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 668         skinwidth = LittleLong(pinmodel->skinwidth);
 669         skinheight = LittleLong(pinmodel->skinheight);
 670
 671         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 672         s = 1.0f / skinwidth;
 673         t = 1.0f / skinheight;
 674         for (i = 0;i < numst;i++)
 675         {
 676                 j = (unsigned short) LittleShort(inst[i*2+0]);
 677                 k = (unsigned short) LittleShort(inst[i*2+1]);
 678                 if (j >= skinwidth || k >= skinheight)
 679                 {
 680                         Mem_Free(stverts);
 681                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
 682                 }
 683                 stverts[i*2+0] = j * s;
 684                 stverts[i*2+1] = k * t;
 685         }
 686
 687         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 688         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->numtris * 3 * sizeof(*hash));
 689         // swap the triangle list
 690         num = 0;
 691         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 692         for (i = 0;i < loadmodel->numtris;i++)
 693         {
 694                 for (j = 0;j < 3;j++)
 695                 {
 696                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 697                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 698                         if (xyz >= numxyz || st >= numst)
 699                         {
 700                                 Mem_Free(md2verthash);
 701                                 Mem_Free(md2verthashdata);
 702                                 Mem_Free(stverts);
 703                                 if (xyz >= numxyz)
 704                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
 705                                 if (st >= numst)
 706                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
 707                         }
 708                         s = stverts[st*2+0];
 709                         t = stverts[st*2+1];
 710                         hashindex = (xyz * 17 + st) & 255;
 711                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 712                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 713                                         break;
 714                         if (hash == NULL)
 715                         {
 716                                 hash = md2verthashdata + num++;
 717                                 hash->xyz = xyz;
 718                                 hash->st[0] = s;
 719                                 hash->st[1] = t;
 720                                 hash->next = md2verthash[hashindex];
 721                                 md2verthash[hashindex] = hash;
 722                         }
 723                         loadmodel->mdlmd2data_indices[i*3+j] = (hash - md2verthashdata);
 724                 }
 725         }
 726
 727         Mem_Free(stverts);
 728
 729         loadmodel->numverts = num;
 730         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 731         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
 732         for (i = 0;i < num;i++)
 733         {
 734                 hash = md2verthashdata + i;
 735                 vertremap[i] = hash->xyz;
 736                 loadmodel->mdlmd2data_texcoords[i*2+0] = hash->st[0];
 737                 loadmodel->mdlmd2data_texcoords[i*2+1] = hash->st[1];
 738         }
 739
 740         Mem_Free(md2verthash);
 741         Mem_Free(md2verthashdata);
 742
 743         // load frames
 744         // LordHavoc: doing proper bbox for model
 745         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 746         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 747         modelyawradius = 0;
 748         modelradius = 0;
 749
 750         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 751         // load the frames
 752         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 753         loadmodel->mdlmd2data_frames = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(md2frame_t));
 754         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, loadmodel->numverts * loadmodel->numframes * sizeof(trivertx_t));
 755
 756         for (i = 0;i < loadmodel->numframes;i++)
 757         {
 758                 pinframe = (md2frame_t *)datapointer;
 759                 datapointer += sizeof(md2frame_t);
 760                 strcpy(loadmodel->mdlmd2data_frames[i].name, pinframe->name);
 761                 for (j = 0;j < 3;j++)
 762                 {
 763                         loadmodel->mdlmd2data_frames[i].scale[j] = LittleFloat(pinframe->scale[j]);
 764                         loadmodel->mdlmd2data_frames[i].translate[j] = LittleFloat(pinframe->translate[j]);
 765                 }
 766                 Mod_MD2_ConvertVerts (loadmodel->mdlmd2data_frames[i].scale, loadmodel->mdlmd2data_frames[i].translate, (void *)datapointer, &loadmodel->mdlmd2data_pose[i * loadmodel->numverts], vertremap);
 767                 datapointer += numxyz * sizeof(trivertx_t);
 768
 769                 strcpy(loadmodel->animscenes[i].name, loadmodel->mdlmd2data_frames[i].name);
 770                 loadmodel->animscenes[i].firstframe = i;
 771                 loadmodel->animscenes[i].framecount = 1;
 772                 loadmodel->animscenes[i].framerate = 10;
 773                 loadmodel->animscenes[i].loop = true;
 774         }
 775
 776         Mem_Free(vertremap);
 777
 778         // LordHavoc: model bbox
 779         modelyawradius = sqrt(modelyawradius);
 780         modelradius = sqrt(modelradius);
 781         for (j = 0;j < 3;j++)
 782         {
 783                 loadmodel->normalmins[j] = aliasbboxmin[j];
 784                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 785                 loadmodel->rotatedmins[j] = -modelradius;
 786                 loadmodel->rotatedmaxs[j] = modelradius;
 787         }
 788         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 789         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 790         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 791         loadmodel->radius = modelradius;
 792         loadmodel->radius2 = modelradius * modelradius;
 793
 794         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 795         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 796 }
 797
 798 static void zymswapintblock(int *m, int size)
 799 {
 800         size /= 4;
 801         while(size--)
 802         {
 803                 *m = BigLong(*m);
 804                 m++;
 805         }
 806 }
 807
 808 void Mod_LoadZymoticModel(model_t *mod, void *buffer)
 809 {
 810         int i, pbase, *bonecount, numposes;
 811         unsigned int count, a, b, c, *renderlist, *renderlistend;
 812         rtexture_t **texture;
 813         char *shadername;
 814         zymtype1header_t *pinmodel, *pheader;
 815         zymscene_t *scene;
 816         zymbone_t *bone;
 817         float corner[2], modelradius;
 818
 819         pinmodel = (void *)buffer;
 820
 821         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
 822                 Host_Error ("Mod_LoadZymoticModel: %s is not a zymotic model\n");
 823
 824         if (BigLong(pinmodel->type) != 1)
 825                 Host_Error ("Mod_LoadZymoticModel: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
 826
 827         loadmodel->type = mod_alias;
 828         loadmodel->aliastype = ALIASTYPE_ZYM;
 829
 830         loadmodel->zymdata_header = pheader = Mem_Alloc(loadmodel->mempool, BigLong(pinmodel->filesize));
 831
 832         pbase = (int) pheader;
 833
 834         memcpy(pheader, pinmodel, BigLong(pinmodel->filesize));
 835
 836         // byteswap header
 837 #define SWAPLONG(var) var = BigLong(var)
 838 #define SWAPFLOAT(var) var = BigFloat(var)
 839 #define SWAPVEC(var) SWAPFLOAT(var[0]);SWAPFLOAT(var[1]);SWAPFLOAT(var[2])
 840         SWAPLONG(pheader->type);
 841         SWAPLONG(pheader->filesize);
 842         SWAPVEC(pheader->mins);
 843         SWAPVEC(pheader->maxs);
 844         SWAPFLOAT(pheader->radius);
 845         SWAPLONG(pheader->numverts);
 846         SWAPLONG(pheader->numtris);
 847         SWAPLONG(pheader->numshaders);
 848         SWAPLONG(pheader->numbones);
 849         SWAPLONG(pheader->numscenes);
 850
 851 #define SWAPLUMPINFO(var) SWAPLONG(pheader->lump_##var.start);SWAPLONG(pheader->lump_##var.length)
 852         SWAPLUMPINFO(scenes);
 853         SWAPLUMPINFO(poses);
 854         SWAPLUMPINFO(bones);
 855         SWAPLUMPINFO(vertbonecounts);
 856         SWAPLUMPINFO(verts);
 857         SWAPLUMPINFO(texcoords);
 858         SWAPLUMPINFO(render);
 859         SWAPLUMPINFO(shaders);
 860         SWAPLUMPINFO(trizone);
 861
 862         loadmodel->flags = 0; // there are no flags
 863         loadmodel->numframes = pheader->numscenes;
 864         loadmodel->synctype = ST_SYNC;
 865         loadmodel->numtris = pheader->numtris;
 866
 867         // FIXME: add skin support and texturing and shaders and...
 868         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) + sizeof(skinframe_t));
 869         loadmodel->skinscenes[0].firstframe = 0;
 870         loadmodel->skinscenes[0].framecount = 1;
 871         loadmodel->skinscenes[0].loop = true;
 872         loadmodel->skinscenes[0].framerate = 10;
 873         loadmodel->skinframes = (void *)(loadmodel->skinscenes + 1);
 874         loadmodel->skinframes->base = NULL;
 875         loadmodel->skinframes->fog = NULL;
 876         loadmodel->skinframes->pants = NULL;
 877         loadmodel->skinframes->shirt = NULL;
 878         loadmodel->skinframes->glow = NULL;
 879         loadmodel->skinframes->merged = NULL;
 880         loadmodel->numskins = 1;
 881         numposes = pheader->lump_poses.length / sizeof(float[3][4]) / pheader->numbones;
 882
 883         // go through the lumps, swapping things
 884
 885 //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
 886         scene = (void *) (pheader->lump_scenes.start + pbase);
 887         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 888         for (i = 0;i < pheader->numscenes;i++)
 889         {
 890                 SWAPVEC(scene->mins);
 891                 SWAPVEC(scene->maxs);
 892                 SWAPFLOAT(scene->radius);
 893                 SWAPFLOAT(scene->framerate);
 894                 SWAPLONG(scene->flags);
 895                 SWAPLONG(scene->start);
 896                 SWAPLONG(scene->length);
 897
 898                 memcpy(loadmodel->animscenes[i].name, scene->name, 32);
 899                 loadmodel->animscenes[i].firstframe = scene->start;
 900                 loadmodel->animscenes[i].framecount = scene->length;
 901                 loadmodel->animscenes[i].framerate = scene->framerate;
 902                 loadmodel->animscenes[i].loop = (scene->flags & ZYMSCENEFLAG_NOLOOP) == 0;
 903
 904                 if ((unsigned int) loadmodel->animscenes[i].firstframe >= numposes)
 905                         Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
 906                 if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > numposes)
 907                         Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
 908                 if (loadmodel->animscenes[i].framerate < 0)
 909                         Host_Error("Mod_LoadZymoticModel: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
 910                 scene++;
 911         }
 912
 913 //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
 914         zymswapintblock((void *) (pheader->lump_poses.start + pbase), pheader->lump_poses.length);
 915
 916 //      zymlump_t lump_bones; // zymbone_t bone[numbones];
 917         bone = (void *) (pheader->lump_bones.start + pbase);
 918         for (i = 0;i < pheader->numbones;i++)
 919         {
 920                 SWAPLONG(bone[i].flags);
 921                 SWAPLONG(bone[i].parent);
 922                 if (bone[i].parent >= i)
 923                         Host_Error("Mod_LoadZymoticModel: bone[i].parent >= i in %s\n", loadmodel->name);
 924         }
 925
 926 //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
 927         zymswapintblock((void *) (pheader->lump_vertbonecounts.start + pbase), pheader->lump_vertbonecounts.length);
 928         bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
 929         for (i = 0;i < pheader->numbones;i++)
 930                 if (bonecount[i] < 1)
 931                         Host_Error("Mod_LoadZymoticModel: bone vertex count < 1 in %s\n", loadmodel->name);
 932
 933 //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
 934         zymswapintblock((void *) (pheader->lump_verts.start + pbase), pheader->lump_verts.length);
 935
 936 //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
 937         zymswapintblock((void *) (pheader->lump_texcoords.start + pbase), pheader->lump_texcoords.length);
 938
 939 //      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)
 940         zymswapintblock((void *) (pheader->lump_render.start + pbase), pheader->lump_render.length);
 941         // validate renderlist and swap winding order of tris
 942         renderlist = (void *) (pheader->lump_render.start + pbase);
 943         renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
 944         i = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
 945         if (pheader->lump_render.length != i)
 946                 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);
 947         for (i = 0;i < pheader->numshaders;i++)
 948         {
 949                 if (renderlist >= renderlistend)
 950                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
 951                 count = *renderlist++;
 952                 if (renderlist + count * 3 > renderlistend)
 953                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
 954                 while (count--)
 955                 {
 956                         a = renderlist[0];
 957                         b = renderlist[1];
 958                         c = renderlist[2];
 959                         if (a >= pheader->numverts || b >= pheader->numverts || c >= pheader->numverts)
 960                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
 961                         renderlist[0] = c;
 962                         renderlist[1] = b;
 963                         renderlist[2] = a;
 964                         renderlist += 3;
 965                 }
 966         }
 967
 968 //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
 969         shadername = (void *) (pheader->lump_shaders.start + pbase);
 970         texture = (void *) shadername;
 971         for (i = 0;i < pheader->numshaders;i++)
 972         {
 973                 rtexture_t *rt;
 974                 rt = loadtextureimage(loadmodel->texturepool, shadername, 0, 0, true, r_mipskins.integer, true);
 975                 shadername += 32;
 976                 *texture++ = rt; // reuse shader name list for texture pointers
 977         }
 978
 979 //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
 980         zymswapintblock((void *) (pheader->lump_trizone.start + pbase), pheader->lump_trizone.length);
 981
 982         // model bbox
 983         modelradius = pheader->radius;
 984         for (i = 0;i < 3;i++)
 985         {
 986                 loadmodel->normalmins[i] = pheader->mins[i];
 987                 loadmodel->normalmaxs[i] = pheader->maxs[i];
 988                 loadmodel->rotatedmins[i] = -modelradius;
 989                 loadmodel->rotatedmaxs[i] = modelradius;
 990         }
 991         corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
 992         corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
 993         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
 994         if (loadmodel->yawmaxs[0] > modelradius)
 995                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
 996         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
 997         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 998         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 999         loadmodel->radius = modelradius;
1000         loadmodel->radius2 = modelradius * modelradius;
1001
1002         loadmodel->Draw = R_DrawZymoticModel;
1003         loadmodel->DrawSky = NULL;
1004         loadmodel->DrawFakeShadow = NULL;
1005 }