model_alias.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20
  21 #include "quakedef.h"
  22
  23 static cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0"};
  24
  25 void Mod_AliasInit (void)
  26 {
  27         Cvar_RegisterVariable(&r_mipskins);
  28 }
  29
  30 // LordHavoc: proper bounding box considerations
  31 static float aliasbboxmin[3], aliasbboxmax[3], modelyawradius, modelradius;
  32
  33 static float vertst[MAXALIASVERTS][2];
  34 static int vertusage[MAXALIASVERTS];
  35 static int vertonseam[MAXALIASVERTS];
  36 static int vertremap[MAXALIASVERTS];
  37 static int temptris[MAXALIASTRIS][3];
  38
  39 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, trivertx_t *out)
  40 {
  41         int i, j, invalidnormals = 0;
  42         float dist;
  43         vec3_t temp;
  44         for (i = 0;i < inverts;i++)
  45         {
  46                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
  47                         continue;
  48
  49                 temp[0] = v[i].v[0] * scale[0] + translate[0];
  50                 temp[1] = v[i].v[1] * scale[1] + translate[1];
  51                 temp[2] = v[i].v[2] * scale[2] + translate[2];
  52                 // update bounding box
  53                 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
  54                 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
  55                 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
  56                 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
  57                 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
  58                 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
  59                 dist = temp[0]*temp[0]+temp[1]*temp[1];
  60                 if (modelyawradius < dist)
  61                         modelyawradius = dist;
  62                 dist += temp[2]*temp[2];
  63                 if (modelradius < dist)
  64                         modelradius = dist;
  65
  66                 j = vertremap[i]; // not onseam
  67                 if (j >= 0)
  68                 {
  69                         VectorCopy(v[i].v, out[j].v);
  70                         out[j].lightnormalindex = v[i].lightnormalindex;
  71                         if (out[j].lightnormalindex >= NUMVERTEXNORMALS)
  72                         {
  73                                 invalidnormals++;
  74                                 out[j].lightnormalindex = 0;
  75                         }
  76                 }
  77                 j = vertremap[i+inverts]; // onseam
  78                 if (j >= 0)
  79                 {
  80                         VectorCopy(v[i].v, out[j].v);
  81                         out[j].lightnormalindex = v[i].lightnormalindex;
  82                         if (out[j].lightnormalindex >= NUMVERTEXNORMALS)
  83                         {
  84                                 invalidnormals++;
  85                                 out[j].lightnormalindex = 0;
  86                         }
  87                 }
  88         }
  89         if (invalidnormals)
  90                 Con_Printf("Mod_ConvertAliasVerts: \"%s\", %i invalid normal indices found\n", loadmodel->name, invalidnormals);
  91 }
  92
  93 static void Mod_MDL_LoadFrames (qbyte * datapointer, int inverts, int outverts, vec3_t scale, vec3_t translate)
  94 {
  95         daliasframetype_t       *pframetype;
  96         daliasframe_t           *pinframe;
  97         daliasgroup_t           *group;
  98         daliasinterval_t        *intervals;
  99         int                                     i, f, pose, groupframes;
 100         float                           interval;
 101         animscene_t                     *scene;
 102         pose = 0;
 103         scene = loadmodel->animscenes;
 104         for (f = 0;f < loadmodel->numframes;f++)
 105         {
 106                 pframetype = (daliasframetype_t *)datapointer;
 107                 datapointer += sizeof(daliasframetype_t);
 108                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 109                 {
 110                         // a single frame is still treated as a group
 111                         interval = 0.1f;
 112                         groupframes = 1;
 113                 }
 114                 else
 115                 {
 116                         // read group header
 117                         group = (daliasgroup_t *)datapointer;
 118                         datapointer += sizeof(daliasgroup_t);
 119                         groupframes = LittleLong (group->numframes);
 120
 121                         // intervals (time per frame)
 122                         intervals = (daliasinterval_t *)datapointer;
 123                         datapointer += sizeof(daliasinterval_t) * groupframes;
 124
 125                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 126                         if (interval < 0.01f)
 127                                 Host_Error("Mod_LoadAliasGroup: invalid interval");
 128                 }
 129
 130                 // get scene name from first frame
 131                 pinframe = (daliasframe_t *)datapointer;
 132
 133                 strcpy(scene->name, pinframe->name);
 134                 scene->firstframe = pose;
 135                 scene->framecount = groupframes;
 136                 scene->framerate = 1.0f / interval;
 137                 scene->loop = true;
 138                 scene++;
 139
 140                 // read frames
 141                 for (i = 0;i < groupframes;i++)
 142                 {
 143                         pinframe = (daliasframe_t *)datapointer;
 144                         datapointer += sizeof(daliasframe_t);
 145
 146                         // convert to MD2 frame headers
 147                         strcpy(loadmodel->mdlmd2data_frames[pose].name, pinframe->name);
 148                         VectorCopy(scale, loadmodel->mdlmd2data_frames[pose].scale);
 149                         VectorCopy(translate, loadmodel->mdlmd2data_frames[pose].translate);
 150
 151                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->mdlmd2data_pose + pose * outverts);
 152                         datapointer += sizeof(trivertx_t) * inverts;
 153                         pose++;
 154                 }
 155         }
 156 }
 157
 158 static rtexture_t *GL_SkinSplitShirt(qbyte *in, qbyte *out, int width, int height, int bits, char *name, int precache)
 159 {
 160         int i, pixels, passed;
 161         qbyte pixeltest[16];
 162         for (i = 0;i < 16;i++)
 163                 pixeltest[i] = (bits & (1 << i)) != 0;
 164         pixels = width*height;
 165         passed = 0;
 166         while(pixels--)
 167         {
 168                 if (pixeltest[*in >> 4] && *in != 0 && *in != 255)
 169                 {
 170                         passed++;
 171                         // turn to white while copying
 172                         if (*in >= 128 && *in < 224) // backwards ranges
 173                                 *out = (*in & 15) ^ 15;
 174                         else
 175                                 *out = *in & 15;
 176                 }
 177                 else
 178                         *out = 0;
 179                 in++;
 180                 out++;
 181         }
 182         if (passed)
 183                 return R_LoadTexture (loadmodel->texturepool, name, width, height, out - width*height, TEXTYPE_QPALETTE, (r_mipskins.integer ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0));
 184         else
 185                 return NULL;
 186 }
 187
 188 static rtexture_t *GL_SkinSplit(qbyte *in, qbyte *out, int width, int height, int bits, char *name, int precache)
 189 {
 190         int i, pixels, passed;
 191         qbyte pixeltest[16];
 192         for (i = 0;i < 16;i++)
 193                 pixeltest[i] = (bits & (1 << i)) != 0;
 194         pixels = width*height;
 195         passed = 0;
 196         while(pixels--)
 197         {
 198                 if (pixeltest[*in >> 4] && *in != 0 && *in != 255)
 199                 {
 200                         passed++;
 201                         *out = *in;
 202                 }
 203                 else
 204                         *out = 0;
 205                 in++;
 206                 out++;
 207         }
 208         if (passed)
 209                 return R_LoadTexture (loadmodel->texturepool, name, width, height, out - width*height, TEXTYPE_QPALETTE, (r_mipskins.integer ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0));
 210         else
 211                 return NULL;
 212 }
 213
 214 static int Mod_LoadExternalSkin (char *basename, skinframe_t *skinframe, int precache)
 215 {
 216         skinframe->base   = loadtextureimagewithmask(loadmodel->texturepool, va("%s_normal", basename), 0, 0, false, r_mipskins.integer, precache);
 217         skinframe->fog    = image_masktex;
 218         if (!skinframe->base)
 219         {
 220                 skinframe->base   = loadtextureimagewithmask(loadmodel->texturepool, basename, 0, 0, false, r_mipskins.integer, precache);
 221                 skinframe->fog    = image_masktex;
 222         }
 223         skinframe->pants  = loadtextureimage(loadmodel->texturepool, va("%s_pants" , basename), 0, 0, false, r_mipskins.integer, precache);
 224         skinframe->shirt  = loadtextureimage(loadmodel->texturepool, va("%s_shirt" , basename), 0, 0, false, r_mipskins.integer, precache);
 225         skinframe->glow   = loadtextureimage(loadmodel->texturepool, va("%s_glow"  , basename), 0, 0, false, r_mipskins.integer, precache);
 226         skinframe->merged = NULL;
 227         return skinframe->base != NULL || skinframe->pants != NULL || skinframe->shirt != NULL || skinframe->glow != NULL;
 228 }
 229
 230 static int Mod_LoadInternalSkin (char *basename, qbyte *skindata, qbyte *skintemp, int width, int height, skinframe_t *skinframe, int precache)
 231 {
 232         if (!skindata || !skintemp)
 233                 return false;
 234         skinframe->pants  = GL_SkinSplitShirt(skindata, skintemp, width, height, 0x0040, va("%s_pants", basename), false); // pants
 235         skinframe->shirt  = GL_SkinSplitShirt(skindata, skintemp, width, height, 0x0002, va("%s_shirt", basename), false); // shirt
 236         skinframe->glow   = GL_SkinSplit     (skindata, skintemp, width, height, 0xC000, va("%s_glow", basename), precache); // glow
 237         if (skinframe->pants || skinframe->shirt)
 238         {
 239                 skinframe->base   = GL_SkinSplit (skindata, skintemp, width, height, 0x3FBD, va("%s_normal", basename), false); // normal (no special colors)
 240                 skinframe->merged = GL_SkinSplit (skindata, skintemp, width, height, 0x3FFF, va("%s_body", basename), precache); // body (normal + pants + shirt, but not glow)
 241         }
 242         else
 243                 skinframe->base   = GL_SkinSplit (skindata, skintemp, width, height, 0x3FFF, va("%s_base", basename), precache); // no special colors
 244         // quake model skins don't have alpha
 245         skinframe->fog = NULL;
 246         return true;
 247 }
 248
 249 #define BOUNDI(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%d exceeds %d - %d)\n", loadmodel->name, VALUE, MIN, MAX);
 250 #define BOUNDF(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%f exceeds %f - %f)\n", loadmodel->name, VALUE, MIN, MAX);
 251 extern void R_Model_Alias_Draw(entity_render_t *ent);
 252 extern void R_Model_Alias_DrawFakeShadow(entity_render_t *ent);
 253 extern void R_Model_Alias_DrawBaseLighting(entity_render_t *ent);
 254 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int visiblevolume);
 255 extern void R_Model_Alias_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius2, float lightdistbias, float lightsubtract, float *lightcolor);
 256 void Mod_LoadAliasModel (model_t *mod, void *buffer)
 257 {
 258         int                                             i, j, version, numverts, totalposes, totalskins, skinwidth, skinheight, totalverts, groupframes, groupskins;
 259         mdl_t                                   *pinmodel;
 260         stvert_t                                *pinstverts;
 261         dtriangle_t                             *pintriangles;
 262         daliasskintype_t                *pinskintype;
 263         daliasskingroup_t               *pinskingroup;
 264         daliasskininterval_t    *pinskinintervals;
 265         daliasframetype_t               *pinframetype;
 266         daliasgroup_t                   *pinframegroup;
 267         float                                   scales, scalet, scale[3], translate[3], interval;
 268         qbyte                                   *datapointer, *startframes, *startskins;
 269         char                                    name[MAX_QPATH];
 270         qbyte                                   *skintemp = NULL;
 271         skinframe_t                             tempskinframe;
 272         animscene_t                             *tempskinscenes;
 273         skinframe_t                             *tempskinframes;
 274         modelyawradius = 0;
 275         modelradius = 0;
 276
 277         datapointer = buffer;
 278         pinmodel = (mdl_t *)datapointer;
 279         datapointer += sizeof(mdl_t);
 280
 281         version = LittleLong (pinmodel->version);
 282         if (version != ALIAS_VERSION)
 283                 Host_Error ("%s has wrong version number (%i should be %i)",
 284                                  loadmodel->name, version, ALIAS_VERSION);
 285
 286         loadmodel->type = mod_alias;
 287         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 288         loadmodel->DrawSky = NULL;
 289         loadmodel->Draw = R_Model_Alias_Draw;
 290         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 291         loadmodel->DrawBaseLighting = R_Model_Alias_DrawBaseLighting;
 292         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 293         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 294
 295         loadmodel->numskins = LittleLong(pinmodel->numskins);
 296         BOUNDI(loadmodel->numskins,0,256);
 297         skinwidth = LittleLong (pinmodel->skinwidth);
 298         BOUNDI(skinwidth,0,4096);
 299         skinheight = LittleLong (pinmodel->skinheight);
 300         BOUNDI(skinheight,0,4096);
 301         loadmodel->numverts = numverts = LittleLong(pinmodel->numverts);
 302         BOUNDI(loadmodel->numverts,0,MAXALIASVERTS);
 303         loadmodel->numtris = LittleLong(pinmodel->numtris);
 304         BOUNDI(loadmodel->numtris,0,MAXALIASTRIS);
 305         loadmodel->numframes = LittleLong(pinmodel->numframes);
 306         BOUNDI(loadmodel->numframes,0,65536);
 307         loadmodel->synctype = LittleLong (pinmodel->synctype);
 308         BOUNDI(loadmodel->synctype,0,2);
 309         loadmodel->flags = LittleLong (pinmodel->flags);
 310
 311         for (i = 0;i < 3;i++)
 312         {
 313                 scale[i] = LittleFloat (pinmodel->scale[i]);
 314                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 315         }
 316
 317         startskins = datapointer;
 318         totalskins = 0;
 319         for (i = 0;i < loadmodel->numskins;i++)
 320         {
 321                 pinskintype = (daliasskintype_t *)datapointer;
 322                 datapointer += sizeof(daliasskintype_t);
 323                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 324                         groupskins = 1;
 325                 else
 326                 {
 327                         pinskingroup = (daliasskingroup_t *)datapointer;
 328                         datapointer += sizeof(daliasskingroup_t);
 329                         groupskins = LittleLong(pinskingroup->numskins);
 330                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 331                 }
 332
 333                 for (j = 0;j < groupskins;j++)
 334                 {
 335                         datapointer += skinwidth * skinheight;
 336                         totalskins++;
 337                 }
 338         }
 339
 340         pinstverts = (stvert_t *)datapointer;
 341         datapointer += sizeof(stvert_t) * numverts;
 342
 343         pintriangles = (dtriangle_t *)datapointer;
 344         datapointer += sizeof(dtriangle_t) * loadmodel->numtris;
 345
 346         startframes = datapointer;
 347         totalposes = 0;
 348         for (i = 0;i < loadmodel->numframes;i++)
 349         {
 350                 pinframetype = (daliasframetype_t *)datapointer;
 351                 datapointer += sizeof(daliasframetype_t);
 352                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 353                         groupframes = 1;
 354                 else
 355                 {
 356                         pinframegroup = (daliasgroup_t *)datapointer;
 357                         datapointer += sizeof(daliasgroup_t);
 358                         groupframes = LittleLong(pinframegroup->numframes);
 359                         datapointer += sizeof(daliasinterval_t) * groupframes;
 360                 }
 361
 362                 for (j = 0;j < groupframes;j++)
 363                 {
 364                         datapointer += sizeof(daliasframe_t);
 365                         datapointer += sizeof(trivertx_t) * numverts;
 366                         totalposes++;
 367                 }
 368         }
 369
 370         // load the skins
 371         skintemp = Mem_Alloc(tempmempool, skinwidth * skinheight);
 372         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 373         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, totalskins * sizeof(skinframe_t));
 374         totalskins = 0;
 375         datapointer = startskins;
 376         for (i = 0;i < loadmodel->numskins;i++)
 377         {
 378                 pinskintype = (daliasskintype_t *)datapointer;
 379                 datapointer += sizeof(daliasskintype_t);
 380
 381                 if (pinskintype->type == ALIAS_SKIN_SINGLE)
 382                 {
 383                         groupskins = 1;
 384                         interval = 0.1f;
 385                 }
 386                 else
 387                 {
 388                         pinskingroup = (daliasskingroup_t *)datapointer;
 389                         datapointer += sizeof(daliasskingroup_t);
 390
 391                         groupskins = LittleLong (pinskingroup->numskins);
 392
 393                         pinskinintervals = (daliasskininterval_t *)datapointer;
 394                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 395
 396                         interval = LittleFloat(pinskinintervals[0].interval);
 397                         if (interval < 0.01f)
 398                                 Host_Error("Mod_LoadAliasModel: invalid interval\n");
 399                 }
 400
 401                 sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 402                 loadmodel->skinscenes[i].firstframe = totalskins;
 403                 loadmodel->skinscenes[i].framecount = groupskins;
 404                 loadmodel->skinscenes[i].framerate = 1.0f / interval;
 405                 loadmodel->skinscenes[i].loop = true;
 406
 407                 for (j = 0;j < groupskins;j++)
 408                 {
 409                         if (groupskins > 1)
 410                                 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 411                         else
 412                                 sprintf (name, "%s_%i", loadmodel->name, i);
 413                         if (!Mod_LoadExternalSkin(name, loadmodel->skinframes + totalskins, i == 0))
 414                                 Mod_LoadInternalSkin(name, (qbyte *)datapointer, skintemp, skinwidth, skinheight, loadmodel->skinframes + totalskins, i == 0);
 415                         datapointer += skinwidth * skinheight;
 416                         totalskins++;
 417                 }
 418         }
 419         Mem_Free(skintemp);
 420         // check for skins that don't exist in the model, but do exist as external images
 421         // (this was added because yummyluv kept pestering me about support for it)
 422         for (;;)
 423         {
 424                 sprintf (name, "%s_%i", loadmodel->name, loadmodel->numskins);
 425                 if (Mod_LoadExternalSkin(name, &tempskinframe, loadmodel->numskins == 0))
 426                 {
 427                         // expand the arrays to make room
 428                         tempskinscenes = loadmodel->skinscenes;
 429                         tempskinframes = loadmodel->skinframes;
 430                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 431                         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(skinframe_t));
 432                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 433                         memcpy(loadmodel->skinframes, tempskinframes, totalskins * sizeof(skinframe_t));
 434                         Mem_Free(tempskinscenes);
 435                         Mem_Free(tempskinframes);
 436                         // store the info about the new skin
 437                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 438                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 439                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 440                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 441                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 442                         loadmodel->skinframes[totalskins] = tempskinframe;
 443                         loadmodel->numskins++;
 444                         totalskins++;
 445                 }
 446                 else
 447                         break;
 448         }
 449
 450         // store texture coordinates into temporary array, they will be stored after usage is determined (triangle data)
 451         scales = 1.0 / skinwidth;
 452         scalet = 1.0 / skinheight;
 453         for (i = 0;i < numverts;i++)
 454         {
 455                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 456                 vertst[i][0] = LittleLong(pinstverts[i].s) * scales;
 457                 vertst[i][1] = LittleLong(pinstverts[i].t) * scalet;
 458                 vertst[i+numverts][0] = vertst[i][0] + 0.5;
 459                 vertst[i+numverts][1] = vertst[i][1];
 460                 vertusage[i] = 0;
 461                 vertusage[i+numverts] = 0;
 462         }
 463
 464 // load triangle data
 465         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->numtris);
 466
 467         // count the vertices used
 468         for (i = 0;i < numverts*2;i++)
 469                 vertusage[i] = 0;
 470         for (i = 0;i < loadmodel->numtris;i++)
 471         {
 472                 temptris[i][0] = LittleLong(pintriangles[i].vertindex[0]);
 473                 temptris[i][1] = LittleLong(pintriangles[i].vertindex[1]);
 474                 temptris[i][2] = LittleLong(pintriangles[i].vertindex[2]);
 475                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 476                 {
 477                         if (vertonseam[temptris[i][0]]) temptris[i][0] += numverts;
 478                         if (vertonseam[temptris[i][1]]) temptris[i][1] += numverts;
 479                         if (vertonseam[temptris[i][2]]) temptris[i][2] += numverts;
 480                 }
 481                 vertusage[temptris[i][0]]++;
 482                 vertusage[temptris[i][1]]++;
 483                 vertusage[temptris[i][2]]++;
 484         }
 485         // build remapping table and compact array
 486         totalverts = 0;
 487         for (i = 0;i < numverts*2;i++)
 488         {
 489                 if (vertusage[i])
 490                 {
 491                         vertremap[i] = totalverts;
 492                         vertst[totalverts][0] = vertst[i][0];
 493                         vertst[totalverts][1] = vertst[i][1];
 494                         totalverts++;
 495                 }
 496                 else
 497                         vertremap[i] = -1; // not used at all
 498         }
 499         loadmodel->numverts = totalverts;
 500         // remap the triangle references
 501         for (i = 0;i < loadmodel->numtris;i++)
 502         {
 503                 loadmodel->mdlmd2data_indices[i*3+0] = vertremap[temptris[i][0]];
 504                 loadmodel->mdlmd2data_indices[i*3+1] = vertremap[temptris[i][1]];
 505                 loadmodel->mdlmd2data_indices[i*3+2] = vertremap[temptris[i][2]];
 506         }
 507         // store the texture coordinates
 508         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, sizeof(float[4]) * totalverts);
 509         for (i = 0;i < totalverts;i++)
 510         {
 511                 loadmodel->mdlmd2data_texcoords[i*4+0] = vertst[i][0];
 512                 loadmodel->mdlmd2data_texcoords[i*4+1] = vertst[i][1];
 513         }
 514
 515 // load the frames
 516         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 517         loadmodel->mdlmd2data_frames = Mem_Alloc(loadmodel->mempool, sizeof(md2frame_t) * totalposes);
 518         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, sizeof(trivertx_t) * totalposes * totalverts);
 519
 520         // LordHavoc: doing proper bbox for model
 521         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 522         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 523
 524         Mod_MDL_LoadFrames (startframes, numverts, totalverts, scale, translate);
 525
 526         modelyawradius = sqrt(modelyawradius);
 527         modelradius = sqrt(modelradius);
 528         for (j = 0;j < 3;j++)
 529         {
 530                 loadmodel->normalmins[j] = aliasbboxmin[j];
 531                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 532                 loadmodel->rotatedmins[j] = -modelradius;
 533                 loadmodel->rotatedmaxs[j] = modelradius;
 534         }
 535         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 536         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 537         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 538         loadmodel->radius = modelradius;
 539         loadmodel->radius2 = modelradius * modelradius;
 540
 541         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 542         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 543 }
 544
 545 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, trivertx_t *out, int *vertremap)
 546 {
 547         int i, invalidnormals = 0;
 548         float dist;
 549         trivertx_t *in;
 550         vec3_t temp;
 551         for (i = 0;i < loadmodel->numverts;i++)
 552         {
 553                 in = v + vertremap[i];
 554                 VectorCopy(in->v, out[i].v);
 555                 temp[0] = in->v[0] * scale[0] + translate[0];
 556                 temp[1] = in->v[1] * scale[1] + translate[1];
 557                 temp[2] = in->v[2] * scale[2] + translate[2];
 558                 // update bounding box
 559                 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
 560                 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
 561                 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
 562                 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
 563                 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
 564                 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
 565                 dist = temp[0]*temp[0]+temp[1]*temp[1];
 566                 if (modelyawradius < dist)
 567                         modelyawradius = dist;
 568                 dist += temp[2]*temp[2];
 569                 if (modelradius < dist)
 570                         modelradius = dist;
 571                 out[i].lightnormalindex = in->lightnormalindex;
 572                 if (out[i].lightnormalindex >= NUMVERTEXNORMALS)
 573                 {
 574                         invalidnormals++;
 575                         out[i].lightnormalindex = 0;
 576                 }
 577         }
 578         if (invalidnormals)
 579                 Con_Printf("Mod_MD2_ConvertVerts: \"%s\", %i invalid normal indices found\n", loadmodel->name, invalidnormals);
 580 }
 581
 582 void Mod_LoadQ2AliasModel (model_t *mod, void *buffer)
 583 {
 584         int *vertremap;
 585         md2_t *pinmodel;
 586         qbyte *base;
 587         int version, end;
 588         int i, j, k, hashindex, num, numxyz, numst, xyz, st;
 589         float *stverts, s, t;
 590         struct md2verthash_s
 591         {
 592                 struct md2verthash_s *next;
 593                 int xyz;
 594                 float st[2];
 595         }
 596         *hash, **md2verthash, *md2verthashdata;
 597         qbyte *datapointer;
 598         md2frame_t *pinframe;
 599         char *inskin;
 600         md2triangle_t *intri;
 601         unsigned short *inst;
 602         int skinwidth, skinheight;
 603
 604         pinmodel = buffer;
 605         base = buffer;
 606
 607         version = LittleLong (pinmodel->version);
 608         if (version != MD2ALIAS_VERSION)
 609                 Host_Error ("%s has wrong version number (%i should be %i)",
 610                         loadmodel->name, version, MD2ALIAS_VERSION);
 611
 612         loadmodel->type = mod_alias;
 613         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 614         loadmodel->DrawSky = NULL;
 615         loadmodel->Draw = R_Model_Alias_Draw;
 616         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 617         loadmodel->DrawBaseLighting = R_Model_Alias_DrawBaseLighting;
 618         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 619         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 620
 621         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > MD2MAX_TRIANGLES)
 622                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 623         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > MD2MAX_VERTS)
 624                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 625         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > MD2MAX_FRAMES)
 626                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 627         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > MAX_SKINS)
 628                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 629
 630         end = LittleLong(pinmodel->ofs_end);
 631         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
 632                 Host_Error ("%s is not a valid model", loadmodel->name);
 633         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
 634                 Host_Error ("%s is not a valid model", loadmodel->name);
 635         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
 636                 Host_Error ("%s is not a valid model", loadmodel->name);
 637         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
 638                 Host_Error ("%s is not a valid model", loadmodel->name);
 639         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
 640                 Host_Error ("%s is not a valid model", loadmodel->name);
 641
 642         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 643         numxyz = LittleLong(pinmodel->num_xyz);
 644         numst = LittleLong(pinmodel->num_st);
 645         loadmodel->numtris = LittleLong(pinmodel->num_tris);
 646         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 647
 648         loadmodel->flags = 0; // there are no MD2 flags
 649         loadmodel->synctype = ST_RAND;
 650
 651         // load the skins
 652         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 653         if (loadmodel->numskins)
 654         {
 655                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 656                 loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, sizeof(skinframe_t) * loadmodel->numskins);
 657                 for (i = 0;i < loadmodel->numskins;i++)
 658                 {
 659                         loadmodel->skinscenes[i].firstframe = i;
 660                         loadmodel->skinscenes[i].framecount = 1;
 661                         loadmodel->skinscenes[i].loop = true;
 662                         loadmodel->skinscenes[i].framerate = 10;
 663                         loadmodel->skinframes[i].base = loadtextureimagewithmask (loadmodel->texturepool, inskin, 0, 0, true, r_mipskins.integer, true);
 664                         loadmodel->skinframes[i].fog = image_masktex;
 665                         loadmodel->skinframes[i].pants = NULL;
 666                         loadmodel->skinframes[i].shirt = NULL;
 667                         loadmodel->skinframes[i].glow = NULL;
 668                         loadmodel->skinframes[i].merged = NULL;
 669                         inskin += MD2MAX_SKINNAME;
 670                 }
 671         }
 672
 673         // load the triangles and stvert data
 674         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 675         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 676         skinwidth = LittleLong(pinmodel->skinwidth);
 677         skinheight = LittleLong(pinmodel->skinheight);
 678
 679         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 680         s = 1.0f / skinwidth;
 681         t = 1.0f / skinheight;
 682         for (i = 0;i < numst;i++)
 683         {
 684                 j = (unsigned short) LittleShort(inst[i*2+0]);
 685                 k = (unsigned short) LittleShort(inst[i*2+1]);
 686                 if (j >= skinwidth || k >= skinheight)
 687                 {
 688                         Mem_Free(stverts);
 689                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
 690                 }
 691                 stverts[i*2+0] = j * s;
 692                 stverts[i*2+1] = k * t;
 693         }
 694
 695         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 696         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->numtris * 3 * sizeof(*hash));
 697         // swap the triangle list
 698         num = 0;
 699         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 700         for (i = 0;i < loadmodel->numtris;i++)
 701         {
 702                 for (j = 0;j < 3;j++)
 703                 {
 704                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 705                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 706                         if (xyz >= numxyz || st >= numst)
 707                         {
 708                                 Mem_Free(md2verthash);
 709                                 Mem_Free(md2verthashdata);
 710                                 Mem_Free(stverts);
 711                                 if (xyz >= numxyz)
 712                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
 713                                 if (st >= numst)
 714                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
 715                         }
 716                         s = stverts[st*2+0];
 717                         t = stverts[st*2+1];
 718                         hashindex = (xyz * 17 + st) & 255;
 719                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 720                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 721                                         break;
 722                         if (hash == NULL)
 723                         {
 724                                 hash = md2verthashdata + num++;
 725                                 hash->xyz = xyz;
 726                                 hash->st[0] = s;
 727                                 hash->st[1] = t;
 728                                 hash->next = md2verthash[hashindex];
 729                                 md2verthash[hashindex] = hash;
 730                         }
 731                         loadmodel->mdlmd2data_indices[i*3+j] = (hash - md2verthashdata);
 732                 }
 733         }
 734
 735         Mem_Free(stverts);
 736
 737         loadmodel->numverts = num;
 738         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 739         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, num * sizeof(float[4]));
 740         for (i = 0;i < num;i++)
 741         {
 742                 hash = md2verthashdata + i;
 743                 vertremap[i] = hash->xyz;
 744                 loadmodel->mdlmd2data_texcoords[i*4+0] = hash->st[0];
 745                 loadmodel->mdlmd2data_texcoords[i*4+1] = hash->st[1];
 746         }
 747
 748         Mem_Free(md2verthash);
 749         Mem_Free(md2verthashdata);
 750
 751         // load frames
 752         // LordHavoc: doing proper bbox for model
 753         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 754         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 755         modelyawradius = 0;
 756         modelradius = 0;
 757
 758         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 759         // load the frames
 760         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 761         loadmodel->mdlmd2data_frames = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(md2frame_t));
 762         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, loadmodel->numverts * loadmodel->numframes * sizeof(trivertx_t));
 763
 764         for (i = 0;i < loadmodel->numframes;i++)
 765         {
 766                 pinframe = (md2frame_t *)datapointer;
 767                 datapointer += sizeof(md2frame_t);
 768                 strcpy(loadmodel->mdlmd2data_frames[i].name, pinframe->name);
 769                 for (j = 0;j < 3;j++)
 770                 {
 771                         loadmodel->mdlmd2data_frames[i].scale[j] = LittleFloat(pinframe->scale[j]);
 772                         loadmodel->mdlmd2data_frames[i].translate[j] = LittleFloat(pinframe->translate[j]);
 773                 }
 774                 Mod_MD2_ConvertVerts (loadmodel->mdlmd2data_frames[i].scale, loadmodel->mdlmd2data_frames[i].translate, (void *)datapointer, &loadmodel->mdlmd2data_pose[i * loadmodel->numverts], vertremap);
 775                 datapointer += numxyz * sizeof(trivertx_t);
 776
 777                 strcpy(loadmodel->animscenes[i].name, loadmodel->mdlmd2data_frames[i].name);
 778                 loadmodel->animscenes[i].firstframe = i;
 779                 loadmodel->animscenes[i].framecount = 1;
 780                 loadmodel->animscenes[i].framerate = 10;
 781                 loadmodel->animscenes[i].loop = true;
 782         }
 783
 784         Mem_Free(vertremap);
 785
 786         // LordHavoc: model bbox
 787         modelyawradius = sqrt(modelyawradius);
 788         modelradius = sqrt(modelradius);
 789         for (j = 0;j < 3;j++)
 790         {
 791                 loadmodel->normalmins[j] = aliasbboxmin[j];
 792                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 793                 loadmodel->rotatedmins[j] = -modelradius;
 794                 loadmodel->rotatedmaxs[j] = modelradius;
 795         }
 796         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 797         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 798         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 799         loadmodel->radius = modelradius;
 800         loadmodel->radius2 = modelradius * modelradius;
 801
 802         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 803         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 804 }
 805
 806 extern void R_Model_Zymotic_DrawSky(entity_render_t *ent);
 807 extern void R_Model_Zymotic_Draw(entity_render_t *ent);
 808 extern void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent);
 809 extern void R_Model_Zymotic_DrawBaseLighting(entity_render_t *ent);
 810 extern void R_Model_Zymotic_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int visiblevolume);
 811 extern void R_Model_Zymotic_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius2, float lightdistbias, float lightsubtract, float *lightcolor);
 812 void Mod_LoadZymoticModel(model_t *mod, void *buffer)
 813 {
 814         zymtype1header_t *pinmodel, *pheader;
 815         qbyte *pbase;
 816
 817         pinmodel = (void *)buffer;
 818         pbase = buffer;
 819         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
 820                 Host_Error ("Mod_LoadZymoticModel: %s is not a zymotic model\n");
 821         if (BigLong(pinmodel->type) != 1)
 822                 Host_Error ("Mod_LoadZymoticModel: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
 823
 824         loadmodel->type = mod_alias;
 825         loadmodel->aliastype = ALIASTYPE_ZYM;
 826         loadmodel->DrawSky = NULL;
 827         loadmodel->Draw = R_Model_Zymotic_Draw;
 828         loadmodel->DrawFakeShadow = NULL;//R_Model_Zymotic_DrawFakeShadow;
 829         loadmodel->DrawBaseLighting = NULL;//R_Model_Zymotic_DrawBaseLighting;
 830         loadmodel->DrawShadowVolume = NULL;//R_Model_Zymotic_DrawShadowVolume;
 831         loadmodel->DrawLight = NULL;//R_Model_Zymotic_DrawLight;
 832
 833         // byteswap header
 834         pheader = pinmodel;
 835         pheader->type = BigLong(pinmodel->type);
 836         pheader->filesize = BigLong(pinmodel->filesize);
 837         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
 838         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
 839         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
 840         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
 841         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
 842         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
 843         pheader->radius = BigFloat(pinmodel->radius);
 844         pheader->numverts = loadmodel->zymnum_verts = BigLong(pinmodel->numverts);
 845         pheader->numtris = loadmodel->zymnum_tris = BigLong(pinmodel->numtris);
 846         pheader->numshaders = loadmodel->zymnum_shaders = BigLong(pinmodel->numshaders);
 847         pheader->numbones = loadmodel->zymnum_bones = BigLong(pinmodel->numbones);
 848         pheader->numscenes = loadmodel->zymnum_scenes = BigLong(pinmodel->numscenes);
 849         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
 850         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
 851         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
 852         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
 853         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
 854         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
 855         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
 856         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
 857         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
 858         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
 859         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
 860         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
 861         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
 862         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
 863         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
 864         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
 865         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
 866         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
 867
 868         loadmodel->flags = 0; // there are no flags
 869         loadmodel->numframes = pheader->numscenes;
 870         loadmodel->synctype = ST_SYNC;
 871         loadmodel->numtris = pheader->numtris;
 872         loadmodel->numverts = 0;
 873
 874         {
 875                 unsigned int i;
 876                 float modelradius, corner[2];
 877                 // model bbox
 878                 modelradius = pheader->radius;
 879                 for (i = 0;i < 3;i++)
 880                 {
 881                         loadmodel->normalmins[i] = pheader->mins[i];
 882                         loadmodel->normalmaxs[i] = pheader->maxs[i];
 883                         loadmodel->rotatedmins[i] = -modelradius;
 884                         loadmodel->rotatedmaxs[i] = modelradius;
 885                 }
 886                 corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
 887                 corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
 888                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
 889                 if (loadmodel->yawmaxs[0] > modelradius)
 890                         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
 891                 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
 892                 loadmodel->yawmins[2] = loadmodel->normalmins[2];
 893                 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 894                 loadmodel->radius = modelradius;
 895                 loadmodel->radius2 = modelradius * modelradius;
 896         }
 897
 898         {
 899                 // FIXME: add shaders, and make them switchable shader sets and...
 900                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) + sizeof(skinframe_t));
 901                 loadmodel->skinscenes[0].firstframe = 0;
 902                 loadmodel->skinscenes[0].framecount = 1;
 903                 loadmodel->skinscenes[0].loop = true;
 904                 loadmodel->skinscenes[0].framerate = 10;
 905                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + 1);
 906                 loadmodel->skinframes->base = NULL;
 907                 loadmodel->skinframes->fog = NULL;
 908                 loadmodel->skinframes->pants = NULL;
 909                 loadmodel->skinframes->shirt = NULL;
 910                 loadmodel->skinframes->glow = NULL;
 911                 loadmodel->skinframes->merged = NULL;
 912                 loadmodel->numskins = 1;
 913         }
 914
 915         // go through the lumps, swapping things
 916
 917         {
 918                 unsigned int i, numposes;
 919                 zymscene_t *scene;
 920         //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
 921                 loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 922                 scene = (void *) (pheader->lump_scenes.start + pbase);
 923                 numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
 924                 for (i = 0;i < pheader->numscenes;i++)
 925                 {
 926                         memcpy(loadmodel->animscenes[i].name, scene->name, 32);
 927                         loadmodel->animscenes[i].firstframe = BigLong(scene->start);
 928                         loadmodel->animscenes[i].framecount = BigLong(scene->length);
 929                         loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
 930                         loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
 931                         if ((unsigned int) loadmodel->animscenes[i].firstframe >= numposes)
 932                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
 933                         if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > numposes)
 934                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
 935                         if (loadmodel->animscenes[i].framerate < 0)
 936                                 Host_Error("Mod_LoadZymoticModel: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
 937                         scene++;
 938                 }
 939         }
 940
 941         {
 942                 unsigned int i;
 943                 float *poses;
 944         //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
 945                 loadmodel->zymdata_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
 946                 poses = (void *) (pheader->lump_poses.start + pbase);
 947                 for (i = 0;i < pheader->lump_poses.length / 4;i++)
 948                         loadmodel->zymdata_poses[i] = BigFloat(poses[i]);
 949         }
 950
 951         {
 952                 unsigned int i;
 953                 zymbone_t *bone;
 954         //      zymlump_t lump_bones; // zymbone_t bone[numbones];
 955                 loadmodel->zymdata_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(zymbone_t));
 956                 bone = (void *) (pheader->lump_bones.start + pbase);
 957                 for (i = 0;i < pheader->numbones;i++)
 958                 {
 959                         memcpy(loadmodel->zymdata_bones[i].name, bone[i].name, sizeof(bone[i].name));
 960                         loadmodel->zymdata_bones[i].flags = BigLong(bone[i].flags);
 961                         loadmodel->zymdata_bones[i].parent = BigLong(bone[i].parent);
 962                         if (bone[i].parent >= i)
 963                                 Host_Error("Mod_LoadZymoticModel: bone[i].parent >= i in %s\n", loadmodel->name);
 964                 }
 965         }
 966
 967         {
 968                 unsigned int i, *bonecount;
 969         //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
 970                 loadmodel->zymdata_vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(int));
 971                 bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
 972                 for (i = 0;i < pheader->numbones;i++)
 973                 {
 974                         loadmodel->zymdata_vertbonecounts[i] = BigLong(bonecount[i]);
 975                         if (loadmodel->zymdata_vertbonecounts[i] < 1)
 976                                 Host_Error("Mod_LoadZymoticModel: bone vertex count < 1 in %s\n", loadmodel->name);
 977                 }
 978         }
 979
 980         {
 981                 unsigned int i;
 982                 zymvertex_t *vertdata;
 983         //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
 984                 loadmodel->zymdata_verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
 985                 vertdata = (void *) (pheader->lump_verts.start + pbase);
 986                 for (i = 0;i < pheader->lump_verts.length / 4;i++)
 987                 {
 988                         loadmodel->zymdata_verts[i].bonenum = BigLong(vertdata[i].bonenum);
 989                         loadmodel->zymdata_verts[i].origin[0] = BigLong(vertdata[i].origin[0]);
 990                         loadmodel->zymdata_verts[i].origin[1] = BigLong(vertdata[i].origin[1]);
 991                         loadmodel->zymdata_verts[i].origin[2] = BigLong(vertdata[i].origin[2]);
 992                 }
 993         }
 994
 995         {
 996                 unsigned int i;
 997                 float *intexcoord, *outtexcoord;
 998         //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
 999                 loadmodel->zymdata_texcoords = outtexcoord = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[4]));
1000                 intexcoord = (void *) (pheader->lump_texcoords.start + pbase);
1001                 for (i = 0;i < pheader->numverts;i++);
1002                 {
1003                         outtexcoord[i*4+0] = BigFloat(intexcoord[i*2+0]);
1004                         // flip T coordinate for OpenGL
1005                         outtexcoord[i*4+1] = 1 - BigFloat(intexcoord[i*2+1]);
1006                 }
1007         }
1008
1009         {
1010                 unsigned int i, count, a, b, c, *renderlist, *renderlistend, *outrenderlist;
1011         //      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)
1012                 loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, pheader->lump_render.length);
1013                 // byteswap, validate, and swap winding order of tris
1014                 count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1015                 if (pheader->lump_render.length != count)
1016                         Host_Error("Mod_LoadZymoticModel: renderlist is wrong size in %s (is %i bytes, should be %i bytes)\n", loadmodel->name, pheader->lump_render.length, count);
1017                 outrenderlist = loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, count);
1018                 renderlist = (void *) (pheader->lump_render.start + pbase);
1019                 renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
1020                 for (i = 0;i < pheader->numshaders;i++)
1021                 {
1022                         if (renderlist >= renderlistend)
1023                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1024                         count = BigLong(*renderlist);renderlist++;
1025                         if (renderlist + count * 3 > renderlistend)
1026                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1027                         *outrenderlist++ = count;
1028                         while (count--)
1029                         {
1030                                 a = BigLong(renderlist[0]);
1031                                 b = BigLong(renderlist[1]);
1032                                 c = BigLong(renderlist[2]);
1033                                 renderlist += 3;
1034                                 if (a >= pheader->numverts || b >= pheader->numverts || c >= pheader->numverts)
1035                                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
1036                                 *outrenderlist++ = c;
1037                                 *outrenderlist++ = b;
1038                                 *outrenderlist++ = a;
1039                         }
1040                 }
1041         }
1042
1043         {
1044                 unsigned int i;
1045                 char *shadername;
1046         //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1047                 shadername = (void *) (pheader->lump_shaders.start + pbase);
1048                 for (i = 0;i < pheader->numshaders;i++)
1049                         loadmodel->zymdata_textures[i] = loadtextureimage(loadmodel->texturepool, shadername + i * 32, 0, 0, true, r_mipskins.integer, true);
1050         }
1051
1052         {
1053         //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1054                 loadmodel->zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1055                 memcpy(loadmodel->zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1056         }
1057 }