model_alias.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20
  21 #include "quakedef.h"
  22 #include "image.h"
  23
  24 static cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0"};
  25
  26 void Mod_AliasInit (void)
  27 {
  28         Cvar_RegisterVariable(&r_mipskins);
  29 }
  30
  31 // LordHavoc: proper bounding box considerations
  32 static float aliasbboxmin[3], aliasbboxmax[3], modelyawradius, modelradius;
  33
  34 static float vertst[MAXALIASVERTS][2];
  35 static int vertusage[MAXALIASVERTS];
  36 static int vertonseam[MAXALIASVERTS];
  37 static int vertremap[MAXALIASVERTS];
  38 static int temptris[MAXALIASTRIS][3];
  39
  40 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, trivertx_t *out)
  41 {
  42         int i, j, invalidnormals = 0;
  43         float dist;
  44         vec3_t temp;
  45         for (i = 0;i < inverts;i++)
  46         {
  47                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
  48                         continue;
  49
  50                 temp[0] = v[i].v[0] * scale[0] + translate[0];
  51                 temp[1] = v[i].v[1] * scale[1] + translate[1];
  52                 temp[2] = v[i].v[2] * scale[2] + translate[2];
  53                 // update bounding box
  54                 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
  55                 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
  56                 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
  57                 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
  58                 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
  59                 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
  60                 dist = temp[0]*temp[0]+temp[1]*temp[1];
  61                 if (modelyawradius < dist)
  62                         modelyawradius = dist;
  63                 dist += temp[2]*temp[2];
  64                 if (modelradius < dist)
  65                         modelradius = dist;
  66
  67                 j = vertremap[i]; // not onseam
  68                 if (j >= 0)
  69                 {
  70                         VectorCopy(v[i].v, out[j].v);
  71                         out[j].lightnormalindex = v[i].lightnormalindex;
  72                         if (out[j].lightnormalindex >= NUMVERTEXNORMALS)
  73                         {
  74                                 invalidnormals++;
  75                                 out[j].lightnormalindex = 0;
  76                         }
  77                 }
  78                 j = vertremap[i+inverts]; // onseam
  79                 if (j >= 0)
  80                 {
  81                         VectorCopy(v[i].v, out[j].v);
  82                         out[j].lightnormalindex = v[i].lightnormalindex;
  83                         if (out[j].lightnormalindex >= NUMVERTEXNORMALS)
  84                         {
  85                                 invalidnormals++;
  86                                 out[j].lightnormalindex = 0;
  87                         }
  88                 }
  89         }
  90         if (invalidnormals)
  91                 Con_Printf("Mod_ConvertAliasVerts: \"%s\", %i invalid normal indices found\n", loadmodel->name, invalidnormals);
  92 }
  93
  94 static void Mod_MDL_LoadFrames (qbyte * datapointer, int inverts, int outverts, vec3_t scale, vec3_t translate)
  95 {
  96         daliasframetype_t       *pframetype;
  97         daliasframe_t           *pinframe;
  98         daliasgroup_t           *group;
  99         daliasinterval_t        *intervals;
 100         int                                     i, f, pose, groupframes;
 101         float                           interval;
 102         animscene_t                     *scene;
 103         pose = 0;
 104         scene = loadmodel->animscenes;
 105         for (f = 0;f < loadmodel->numframes;f++)
 106         {
 107                 pframetype = (daliasframetype_t *)datapointer;
 108                 datapointer += sizeof(daliasframetype_t);
 109                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 110                 {
 111                         // a single frame is still treated as a group
 112                         interval = 0.1f;
 113                         groupframes = 1;
 114                 }
 115                 else
 116                 {
 117                         // read group header
 118                         group = (daliasgroup_t *)datapointer;
 119                         datapointer += sizeof(daliasgroup_t);
 120                         groupframes = LittleLong (group->numframes);
 121
 122                         // intervals (time per frame)
 123                         intervals = (daliasinterval_t *)datapointer;
 124                         datapointer += sizeof(daliasinterval_t) * groupframes;
 125
 126                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 127                         if (interval < 0.01f)
 128                                 Host_Error("Mod_LoadAliasGroup: invalid interval");
 129                 }
 130
 131                 // get scene name from first frame
 132                 pinframe = (daliasframe_t *)datapointer;
 133
 134                 strcpy(scene->name, pinframe->name);
 135                 scene->firstframe = pose;
 136                 scene->framecount = groupframes;
 137                 scene->framerate = 1.0f / interval;
 138                 scene->loop = true;
 139                 scene++;
 140
 141                 // read frames
 142                 for (i = 0;i < groupframes;i++)
 143                 {
 144                         pinframe = (daliasframe_t *)datapointer;
 145                         datapointer += sizeof(daliasframe_t);
 146
 147                         // convert to MD2 frame headers
 148                         strcpy(loadmodel->mdlmd2data_frames[pose].name, pinframe->name);
 149                         VectorCopy(scale, loadmodel->mdlmd2data_frames[pose].scale);
 150                         VectorCopy(translate, loadmodel->mdlmd2data_frames[pose].translate);
 151
 152                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->mdlmd2data_pose + pose * outverts);
 153                         datapointer += sizeof(trivertx_t) * inverts;
 154                         pose++;
 155                 }
 156         }
 157 }
 158
 159 static rtexture_t *GL_TextureForSkinLayer(const qbyte *in, int width, int height, const char *name, const unsigned int *palette, int precache)
 160 {
 161         int i;
 162         for (i = 0;i < width*height;i++)
 163                 if (((qbyte *)&palette[in[i]])[3] > 0)
 164                         return R_LoadTexture2D (loadmodel->texturepool, name, width, height, in, TEXTYPE_PALETTE, (r_mipskins.integer ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0), palette);
 165         return NULL;
 166 }
 167
 168 static int Mod_LoadExternalSkin (char *basename, skinframe_t *skinframe, int precache)
 169 {
 170         skinframe->base   = loadtextureimagewithmaskandnmap(loadmodel->texturepool, va("%s_normal", basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0), 1);
 171         if (!skinframe->base)
 172                 skinframe->base   = loadtextureimagewithmaskandnmap(loadmodel->texturepool, basename, 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0), 1);
 173         skinframe->fog    = image_masktex;
 174         skinframe->nmap   = image_nmaptex;
 175         skinframe->gloss  = loadtextureimage(loadmodel->texturepool, va("%s_gloss" , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 176         skinframe->pants  = loadtextureimage(loadmodel->texturepool, va("%s_pants" , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 177         skinframe->shirt  = loadtextureimage(loadmodel->texturepool, va("%s_shirt" , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 178         skinframe->glow   = loadtextureimage(loadmodel->texturepool, va("%s_glow"  , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 179         skinframe->merged = NULL;
 180         return skinframe->base != NULL || skinframe->pants != NULL || skinframe->shirt != NULL || skinframe->glow != NULL;
 181 }
 182
 183 static int Mod_LoadInternalSkin (char *basename, qbyte *skindata, int width, int height, skinframe_t *skinframe, int precache)
 184 {
 185         qbyte *temp1, *temp2;
 186         if (!skindata)
 187                 return false;
 188         temp1 = Mem_Alloc(loadmodel->mempool, width * height * 8);
 189         temp2 = temp1 + width * height * 4;
 190         Image_Copy8bitRGBA(skindata, temp1, width * height, palette_nofullbrights);
 191         Image_HeightmapToNormalmap(temp1, temp2, width, height, false, 1);
 192         skinframe->nmap   = R_LoadTexture2D(loadmodel->texturepool, va("%s_nmap", basename), width, height, temp2, TEXTYPE_RGBA, (r_mipskins.integer ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0), NULL);
 193         Mem_Free(temp1);
 194         skinframe->gloss  = NULL;
 195         skinframe->pants  = GL_TextureForSkinLayer(skindata, width, height, va("%s_pants", basename), palette_pantsaswhite, false); // pants
 196         skinframe->shirt  = GL_TextureForSkinLayer(skindata, width, height, va("%s_shirt", basename), palette_shirtaswhite, false); // shirt
 197         skinframe->glow   = GL_TextureForSkinLayer(skindata, width, height, va("%s_glow", basename), palette_onlyfullbrights, precache); // glow
 198         if (skinframe->pants || skinframe->shirt)
 199         {
 200                 skinframe->base   = GL_TextureForSkinLayer(skindata, width, height, va("%s_normal", basename), palette_nocolormapnofullbrights, false); // normal (no special colors)
 201                 skinframe->merged = GL_TextureForSkinLayer(skindata, width, height, va("%s_body", basename), palette_nofullbrights, precache); // body (normal + pants + shirt, but not glow)
 202         }
 203         else
 204                 skinframe->base   = GL_TextureForSkinLayer(skindata, width, height, va("%s_base", basename), palette_nofullbrights, precache); // no special colors
 205         // quake model skins don't have alpha
 206         skinframe->fog = NULL;
 207         return true;
 208 }
 209
 210 #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);
 211 #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);
 212 extern void R_Model_Alias_Draw(entity_render_t *ent);
 213 extern void R_Model_Alias_DrawFakeShadow(entity_render_t *ent);
 214 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 215 extern void R_Model_Alias_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor);
 216 void Mod_LoadAliasModel (model_t *mod, void *buffer)
 217 {
 218         int                                             i, j, version, numverts, totalposes, totalskins, skinwidth, skinheight, totalverts, groupframes, groupskins;
 219         mdl_t                                   *pinmodel;
 220         stvert_t                                *pinstverts;
 221         dtriangle_t                             *pintriangles;
 222         daliasskintype_t                *pinskintype;
 223         daliasskingroup_t               *pinskingroup;
 224         daliasskininterval_t    *pinskinintervals;
 225         daliasframetype_t               *pinframetype;
 226         daliasgroup_t                   *pinframegroup;
 227         float                                   scales, scalet, scale[3], translate[3], interval;
 228         qbyte                                   *datapointer, *startframes, *startskins;
 229         char                                    name[MAX_QPATH];
 230         skinframe_t                             tempskinframe;
 231         animscene_t                             *tempskinscenes;
 232         skinframe_t                             *tempskinframes;
 233         modelyawradius = 0;
 234         modelradius = 0;
 235
 236         datapointer = buffer;
 237         pinmodel = (mdl_t *)datapointer;
 238         datapointer += sizeof(mdl_t);
 239
 240         version = LittleLong (pinmodel->version);
 241         if (version != ALIAS_VERSION)
 242                 Host_Error ("%s has wrong version number (%i should be %i)",
 243                                  loadmodel->name, version, ALIAS_VERSION);
 244
 245         loadmodel->type = mod_alias;
 246         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 247         loadmodel->DrawSky = NULL;
 248         loadmodel->Draw = R_Model_Alias_Draw;
 249         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 250         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 251         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 252
 253         loadmodel->numskins = LittleLong(pinmodel->numskins);
 254         BOUNDI(loadmodel->numskins,0,256);
 255         skinwidth = LittleLong (pinmodel->skinwidth);
 256         BOUNDI(skinwidth,0,4096);
 257         skinheight = LittleLong (pinmodel->skinheight);
 258         BOUNDI(skinheight,0,4096);
 259         loadmodel->numverts = numverts = LittleLong(pinmodel->numverts);
 260         BOUNDI(loadmodel->numverts,0,MAXALIASVERTS);
 261         loadmodel->numtris = LittleLong(pinmodel->numtris);
 262         BOUNDI(loadmodel->numtris,0,MAXALIASTRIS);
 263         loadmodel->numframes = LittleLong(pinmodel->numframes);
 264         BOUNDI(loadmodel->numframes,0,65536);
 265         loadmodel->synctype = LittleLong (pinmodel->synctype);
 266         BOUNDI(loadmodel->synctype,0,2);
 267         loadmodel->flags = LittleLong (pinmodel->flags);
 268
 269         for (i = 0;i < 3;i++)
 270         {
 271                 scale[i] = LittleFloat (pinmodel->scale[i]);
 272                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 273         }
 274
 275         startskins = datapointer;
 276         totalskins = 0;
 277         for (i = 0;i < loadmodel->numskins;i++)
 278         {
 279                 pinskintype = (daliasskintype_t *)datapointer;
 280                 datapointer += sizeof(daliasskintype_t);
 281                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 282                         groupskins = 1;
 283                 else
 284                 {
 285                         pinskingroup = (daliasskingroup_t *)datapointer;
 286                         datapointer += sizeof(daliasskingroup_t);
 287                         groupskins = LittleLong(pinskingroup->numskins);
 288                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 289                 }
 290
 291                 for (j = 0;j < groupskins;j++)
 292                 {
 293                         datapointer += skinwidth * skinheight;
 294                         totalskins++;
 295                 }
 296         }
 297
 298         pinstverts = (stvert_t *)datapointer;
 299         datapointer += sizeof(stvert_t) * numverts;
 300
 301         pintriangles = (dtriangle_t *)datapointer;
 302         datapointer += sizeof(dtriangle_t) * loadmodel->numtris;
 303
 304         startframes = datapointer;
 305         totalposes = 0;
 306         for (i = 0;i < loadmodel->numframes;i++)
 307         {
 308                 pinframetype = (daliasframetype_t *)datapointer;
 309                 datapointer += sizeof(daliasframetype_t);
 310                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 311                         groupframes = 1;
 312                 else
 313                 {
 314                         pinframegroup = (daliasgroup_t *)datapointer;
 315                         datapointer += sizeof(daliasgroup_t);
 316                         groupframes = LittleLong(pinframegroup->numframes);
 317                         datapointer += sizeof(daliasinterval_t) * groupframes;
 318                 }
 319
 320                 for (j = 0;j < groupframes;j++)
 321                 {
 322                         datapointer += sizeof(daliasframe_t);
 323                         datapointer += sizeof(trivertx_t) * numverts;
 324                         totalposes++;
 325                 }
 326         }
 327
 328         // load the skins
 329         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 330         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, totalskins * sizeof(skinframe_t));
 331         totalskins = 0;
 332         datapointer = startskins;
 333         for (i = 0;i < loadmodel->numskins;i++)
 334         {
 335                 pinskintype = (daliasskintype_t *)datapointer;
 336                 datapointer += sizeof(daliasskintype_t);
 337
 338                 if (pinskintype->type == ALIAS_SKIN_SINGLE)
 339                 {
 340                         groupskins = 1;
 341                         interval = 0.1f;
 342                 }
 343                 else
 344                 {
 345                         pinskingroup = (daliasskingroup_t *)datapointer;
 346                         datapointer += sizeof(daliasskingroup_t);
 347
 348                         groupskins = LittleLong (pinskingroup->numskins);
 349
 350                         pinskinintervals = (daliasskininterval_t *)datapointer;
 351                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 352
 353                         interval = LittleFloat(pinskinintervals[0].interval);
 354                         if (interval < 0.01f)
 355                                 Host_Error("Mod_LoadAliasModel: invalid interval\n");
 356                 }
 357
 358                 sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 359                 loadmodel->skinscenes[i].firstframe = totalskins;
 360                 loadmodel->skinscenes[i].framecount = groupskins;
 361                 loadmodel->skinscenes[i].framerate = 1.0f / interval;
 362                 loadmodel->skinscenes[i].loop = true;
 363
 364                 for (j = 0;j < groupskins;j++)
 365                 {
 366                         if (groupskins > 1)
 367                                 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 368                         else
 369                                 sprintf (name, "%s_%i", loadmodel->name, i);
 370                         if (!Mod_LoadExternalSkin(name, loadmodel->skinframes + totalskins, i == 0))
 371                                 Mod_LoadInternalSkin(name, (qbyte *)datapointer, skinwidth, skinheight, loadmodel->skinframes + totalskins, i == 0);
 372                         datapointer += skinwidth * skinheight;
 373                         totalskins++;
 374                 }
 375         }
 376         // check for skins that don't exist in the model, but do exist as external images
 377         // (this was added because yummyluv kept pestering me about support for it)
 378         for (;;)
 379         {
 380                 sprintf (name, "%s_%i", loadmodel->name, loadmodel->numskins);
 381                 if (Mod_LoadExternalSkin(name, &tempskinframe, loadmodel->numskins == 0))
 382                 {
 383                         // expand the arrays to make room
 384                         tempskinscenes = loadmodel->skinscenes;
 385                         tempskinframes = loadmodel->skinframes;
 386                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 387                         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(skinframe_t));
 388                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 389                         memcpy(loadmodel->skinframes, tempskinframes, totalskins * sizeof(skinframe_t));
 390                         Mem_Free(tempskinscenes);
 391                         Mem_Free(tempskinframes);
 392                         // store the info about the new skin
 393                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 394                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 395                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 396                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 397                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 398                         loadmodel->skinframes[totalskins] = tempskinframe;
 399                         loadmodel->numskins++;
 400                         totalskins++;
 401                 }
 402                 else
 403                         break;
 404         }
 405
 406         // store texture coordinates into temporary array, they will be stored after usage is determined (triangle data)
 407         scales = 1.0 / skinwidth;
 408         scalet = 1.0 / skinheight;
 409         for (i = 0;i < numverts;i++)
 410         {
 411                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 412                 vertst[i][0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 413                 vertst[i][1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 414                 vertst[i+numverts][0] = vertst[i][0] + 0.5;
 415                 vertst[i+numverts][1] = vertst[i][1];
 416                 vertusage[i] = 0;
 417                 vertusage[i+numverts] = 0;
 418         }
 419
 420 // load triangle data
 421         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->numtris);
 422
 423         // count the vertices used
 424         for (i = 0;i < numverts*2;i++)
 425                 vertusage[i] = 0;
 426         for (i = 0;i < loadmodel->numtris;i++)
 427         {
 428                 temptris[i][0] = LittleLong(pintriangles[i].vertindex[0]);
 429                 temptris[i][1] = LittleLong(pintriangles[i].vertindex[1]);
 430                 temptris[i][2] = LittleLong(pintriangles[i].vertindex[2]);
 431                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 432                 {
 433                         if (vertonseam[temptris[i][0]]) temptris[i][0] += numverts;
 434                         if (vertonseam[temptris[i][1]]) temptris[i][1] += numverts;
 435                         if (vertonseam[temptris[i][2]]) temptris[i][2] += numverts;
 436                 }
 437                 vertusage[temptris[i][0]]++;
 438                 vertusage[temptris[i][1]]++;
 439                 vertusage[temptris[i][2]]++;
 440         }
 441         // build remapping table and compact array
 442         totalverts = 0;
 443         for (i = 0;i < numverts*2;i++)
 444         {
 445                 if (vertusage[i])
 446                 {
 447                         vertremap[i] = totalverts;
 448                         vertst[totalverts][0] = vertst[i][0];
 449                         vertst[totalverts][1] = vertst[i][1];
 450                         totalverts++;
 451                 }
 452                 else
 453                         vertremap[i] = -1; // not used at all
 454         }
 455         loadmodel->numverts = totalverts;
 456         // remap the triangle references
 457         for (i = 0;i < loadmodel->numtris;i++)
 458         {
 459                 loadmodel->mdlmd2data_indices[i*3+0] = vertremap[temptris[i][0]];
 460                 loadmodel->mdlmd2data_indices[i*3+1] = vertremap[temptris[i][1]];
 461                 loadmodel->mdlmd2data_indices[i*3+2] = vertremap[temptris[i][2]];
 462         }
 463         // store the texture coordinates
 464         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, sizeof(float[4]) * totalverts);
 465         for (i = 0;i < totalverts;i++)
 466         {
 467                 loadmodel->mdlmd2data_texcoords[i*4+0] = vertst[i][0];
 468                 loadmodel->mdlmd2data_texcoords[i*4+1] = vertst[i][1];
 469         }
 470
 471 // load the frames
 472         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 473         loadmodel->mdlmd2data_frames = Mem_Alloc(loadmodel->mempool, sizeof(md2frame_t) * totalposes);
 474         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, sizeof(trivertx_t) * totalposes * totalverts);
 475
 476         // LordHavoc: doing proper bbox for model
 477         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 478         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 479
 480         Mod_MDL_LoadFrames (startframes, numverts, totalverts, scale, translate);
 481
 482         modelyawradius = sqrt(modelyawradius);
 483         modelradius = sqrt(modelradius);
 484         for (j = 0;j < 3;j++)
 485         {
 486                 loadmodel->normalmins[j] = aliasbboxmin[j];
 487                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 488                 loadmodel->rotatedmins[j] = -modelradius;
 489                 loadmodel->rotatedmaxs[j] = modelradius;
 490         }
 491         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 492         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 493         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 494         loadmodel->radius = modelradius;
 495         loadmodel->radius2 = modelradius * modelradius;
 496
 497         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 498         Mod_ValidateElements(loadmodel->mdlmd2data_indices, loadmodel->numtris, loadmodel->numverts, __FILE__, __LINE__);
 499         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 500 }
 501
 502 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, trivertx_t *out, int *vertremap)
 503 {
 504         int i, invalidnormals = 0;
 505         float dist;
 506         trivertx_t *in;
 507         vec3_t temp;
 508         for (i = 0;i < loadmodel->numverts;i++)
 509         {
 510                 in = v + vertremap[i];
 511                 VectorCopy(in->v, out[i].v);
 512                 temp[0] = in->v[0] * scale[0] + translate[0];
 513                 temp[1] = in->v[1] * scale[1] + translate[1];
 514                 temp[2] = in->v[2] * scale[2] + translate[2];
 515                 // update bounding box
 516                 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
 517                 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
 518                 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
 519                 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
 520                 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
 521                 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
 522                 dist = temp[0]*temp[0]+temp[1]*temp[1];
 523                 if (modelyawradius < dist)
 524                         modelyawradius = dist;
 525                 dist += temp[2]*temp[2];
 526                 if (modelradius < dist)
 527                         modelradius = dist;
 528                 out[i].lightnormalindex = in->lightnormalindex;
 529                 if (out[i].lightnormalindex >= NUMVERTEXNORMALS)
 530                 {
 531                         invalidnormals++;
 532                         out[i].lightnormalindex = 0;
 533                 }
 534         }
 535         if (invalidnormals)
 536                 Con_Printf("Mod_MD2_ConvertVerts: \"%s\", %i invalid normal indices found\n", loadmodel->name, invalidnormals);
 537 }
 538
 539 void Mod_LoadQ2AliasModel (model_t *mod, void *buffer)
 540 {
 541         int *vertremap;
 542         md2_t *pinmodel;
 543         qbyte *base;
 544         int version, end;
 545         int i, j, k, hashindex, num, numxyz, numst, xyz, st;
 546         float *stverts, s, t;
 547         struct md2verthash_s
 548         {
 549                 struct md2verthash_s *next;
 550                 int xyz;
 551                 float st[2];
 552         }
 553         *hash, **md2verthash, *md2verthashdata;
 554         qbyte *datapointer;
 555         md2frame_t *pinframe;
 556         char *inskin;
 557         md2triangle_t *intri;
 558         unsigned short *inst;
 559         int skinwidth, skinheight;
 560
 561         pinmodel = buffer;
 562         base = buffer;
 563
 564         version = LittleLong (pinmodel->version);
 565         if (version != MD2ALIAS_VERSION)
 566                 Host_Error ("%s has wrong version number (%i should be %i)",
 567                         loadmodel->name, version, MD2ALIAS_VERSION);
 568
 569         loadmodel->type = mod_alias;
 570         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 571         loadmodel->DrawSky = NULL;
 572         loadmodel->Draw = R_Model_Alias_Draw;
 573         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 574         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 575         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 576
 577         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > MD2MAX_TRIANGLES)
 578                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 579         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > MD2MAX_VERTS)
 580                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 581         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > MD2MAX_FRAMES)
 582                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 583         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > MAX_SKINS)
 584                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 585
 586         end = LittleLong(pinmodel->ofs_end);
 587         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
 588                 Host_Error ("%s is not a valid model", loadmodel->name);
 589         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
 590                 Host_Error ("%s is not a valid model", loadmodel->name);
 591         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
 592                 Host_Error ("%s is not a valid model", loadmodel->name);
 593         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
 594                 Host_Error ("%s is not a valid model", loadmodel->name);
 595         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
 596                 Host_Error ("%s is not a valid model", loadmodel->name);
 597
 598         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 599         numxyz = LittleLong(pinmodel->num_xyz);
 600         numst = LittleLong(pinmodel->num_st);
 601         loadmodel->numtris = LittleLong(pinmodel->num_tris);
 602         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 603
 604         loadmodel->flags = 0; // there are no MD2 flags
 605         loadmodel->synctype = ST_RAND;
 606
 607         // load the skins
 608         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 609         if (loadmodel->numskins)
 610         {
 611                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins + sizeof(skinframe_t) * loadmodel->numskins);
 612                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + loadmodel->numskins);
 613                 for (i = 0;i < loadmodel->numskins;i++)
 614                 {
 615                         loadmodel->skinscenes[i].firstframe = i;
 616                         loadmodel->skinscenes[i].framecount = 1;
 617                         loadmodel->skinscenes[i].loop = true;
 618                         loadmodel->skinscenes[i].framerate = 10;
 619                         loadmodel->skinframes[i].base = loadtextureimagewithmaskandnmap (loadmodel->texturepool, inskin, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0), 1);
 620                         loadmodel->skinframes[i].fog = image_masktex;
 621                         loadmodel->skinframes[i].nmap = image_nmaptex;
 622                         loadmodel->skinframes[i].gloss = NULL;
 623                         loadmodel->skinframes[i].pants = NULL;
 624                         loadmodel->skinframes[i].shirt = NULL;
 625                         loadmodel->skinframes[i].glow = NULL;
 626                         loadmodel->skinframes[i].merged = NULL;
 627                         inskin += MD2MAX_SKINNAME;
 628                 }
 629         }
 630
 631         // load the triangles and stvert data
 632         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 633         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 634         skinwidth = LittleLong(pinmodel->skinwidth);
 635         skinheight = LittleLong(pinmodel->skinheight);
 636
 637         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 638         s = 1.0f / skinwidth;
 639         t = 1.0f / skinheight;
 640         for (i = 0;i < numst;i++)
 641         {
 642                 j = (unsigned short) LittleShort(inst[i*2+0]);
 643                 k = (unsigned short) LittleShort(inst[i*2+1]);
 644                 if (j >= skinwidth || k >= skinheight)
 645                 {
 646                         Mem_Free(stverts);
 647                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
 648                 }
 649                 stverts[i*2+0] = j * s;
 650                 stverts[i*2+1] = k * t;
 651         }
 652
 653         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 654         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->numtris * 3 * sizeof(*hash));
 655         // swap the triangle list
 656         num = 0;
 657         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 658         for (i = 0;i < loadmodel->numtris;i++)
 659         {
 660                 for (j = 0;j < 3;j++)
 661                 {
 662                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 663                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 664                         if (xyz >= numxyz || st >= numst)
 665                         {
 666                                 Mem_Free(md2verthash);
 667                                 Mem_Free(md2verthashdata);
 668                                 Mem_Free(stverts);
 669                                 if (xyz >= numxyz)
 670                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
 671                                 if (st >= numst)
 672                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
 673                         }
 674                         s = stverts[st*2+0];
 675                         t = stverts[st*2+1];
 676                         hashindex = (xyz * 17 + st) & 255;
 677                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 678                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 679                                         break;
 680                         if (hash == NULL)
 681                         {
 682                                 hash = md2verthashdata + num++;
 683                                 hash->xyz = xyz;
 684                                 hash->st[0] = s;
 685                                 hash->st[1] = t;
 686                                 hash->next = md2verthash[hashindex];
 687                                 md2verthash[hashindex] = hash;
 688                         }
 689                         loadmodel->mdlmd2data_indices[i*3+j] = (hash - md2verthashdata);
 690                 }
 691         }
 692
 693         Mem_Free(stverts);
 694
 695         loadmodel->numverts = num;
 696         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 697         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, num * sizeof(float[4]));
 698         for (i = 0;i < num;i++)
 699         {
 700                 hash = md2verthashdata + i;
 701                 vertremap[i] = hash->xyz;
 702                 loadmodel->mdlmd2data_texcoords[i*4+0] = hash->st[0];
 703                 loadmodel->mdlmd2data_texcoords[i*4+1] = hash->st[1];
 704         }
 705
 706         Mem_Free(md2verthash);
 707         Mem_Free(md2verthashdata);
 708
 709         // load frames
 710         // LordHavoc: doing proper bbox for model
 711         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 712         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 713         modelyawradius = 0;
 714         modelradius = 0;
 715
 716         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 717         // load the frames
 718         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 719         loadmodel->mdlmd2data_frames = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(md2frame_t));
 720         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, loadmodel->numverts * loadmodel->numframes * sizeof(trivertx_t));
 721
 722         for (i = 0;i < loadmodel->numframes;i++)
 723         {
 724                 pinframe = (md2frame_t *)datapointer;
 725                 datapointer += sizeof(md2frame_t);
 726                 strcpy(loadmodel->mdlmd2data_frames[i].name, pinframe->name);
 727                 for (j = 0;j < 3;j++)
 728                 {
 729                         loadmodel->mdlmd2data_frames[i].scale[j] = LittleFloat(pinframe->scale[j]);
 730                         loadmodel->mdlmd2data_frames[i].translate[j] = LittleFloat(pinframe->translate[j]);
 731                 }
 732                 Mod_MD2_ConvertVerts (loadmodel->mdlmd2data_frames[i].scale, loadmodel->mdlmd2data_frames[i].translate, (void *)datapointer, &loadmodel->mdlmd2data_pose[i * loadmodel->numverts], vertremap);
 733                 datapointer += numxyz * sizeof(trivertx_t);
 734
 735                 strcpy(loadmodel->animscenes[i].name, loadmodel->mdlmd2data_frames[i].name);
 736                 loadmodel->animscenes[i].firstframe = i;
 737                 loadmodel->animscenes[i].framecount = 1;
 738                 loadmodel->animscenes[i].framerate = 10;
 739                 loadmodel->animscenes[i].loop = true;
 740         }
 741
 742         Mem_Free(vertremap);
 743
 744         // LordHavoc: model bbox
 745         modelyawradius = sqrt(modelyawradius);
 746         modelradius = sqrt(modelradius);
 747         for (j = 0;j < 3;j++)
 748         {
 749                 loadmodel->normalmins[j] = aliasbboxmin[j];
 750                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 751                 loadmodel->rotatedmins[j] = -modelradius;
 752                 loadmodel->rotatedmaxs[j] = modelradius;
 753         }
 754         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 755         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 756         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 757         loadmodel->radius = modelradius;
 758         loadmodel->radius2 = modelradius * modelradius;
 759
 760         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 761         Mod_ValidateElements(loadmodel->mdlmd2data_indices, loadmodel->numtris, loadmodel->numverts, __FILE__, __LINE__);
 762         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 763 }
 764
 765 extern void R_Model_Zymotic_DrawSky(entity_render_t *ent);
 766 extern void R_Model_Zymotic_Draw(entity_render_t *ent);
 767 extern void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent);
 768 extern void R_Model_Zymotic_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 769 extern void R_Model_Zymotic_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor);
 770 void Mod_LoadZymoticModel(model_t *mod, void *buffer)
 771 {
 772         zymtype1header_t *pinmodel, *pheader;
 773         qbyte *pbase;
 774
 775         pinmodel = (void *)buffer;
 776         pbase = buffer;
 777         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
 778                 Host_Error ("Mod_LoadZymoticModel: %s is not a zymotic model\n");
 779         if (BigLong(pinmodel->type) != 1)
 780                 Host_Error ("Mod_LoadZymoticModel: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
 781
 782         loadmodel->type = mod_alias;
 783         loadmodel->aliastype = ALIASTYPE_ZYM;
 784         loadmodel->DrawSky = NULL;
 785         loadmodel->Draw = R_Model_Zymotic_Draw;
 786         loadmodel->DrawFakeShadow = NULL;//R_Model_Zymotic_DrawFakeShadow;
 787         loadmodel->DrawShadowVolume = NULL;//R_Model_Zymotic_DrawShadowVolume;
 788         loadmodel->DrawLight = NULL;//R_Model_Zymotic_DrawLight;
 789
 790         // byteswap header
 791         pheader = pinmodel;
 792         pheader->type = BigLong(pinmodel->type);
 793         pheader->filesize = BigLong(pinmodel->filesize);
 794         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
 795         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
 796         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
 797         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
 798         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
 799         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
 800         pheader->radius = BigFloat(pinmodel->radius);
 801         pheader->numverts = loadmodel->zymnum_verts = BigLong(pinmodel->numverts);
 802         pheader->numtris = loadmodel->zymnum_tris = BigLong(pinmodel->numtris);
 803         pheader->numshaders = loadmodel->zymnum_shaders = BigLong(pinmodel->numshaders);
 804         pheader->numbones = loadmodel->zymnum_bones = BigLong(pinmodel->numbones);
 805         pheader->numscenes = loadmodel->zymnum_scenes = BigLong(pinmodel->numscenes);
 806         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
 807         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
 808         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
 809         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
 810         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
 811         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
 812         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
 813         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
 814         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
 815         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
 816         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
 817         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
 818         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
 819         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
 820         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
 821         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
 822         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
 823         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
 824
 825         loadmodel->flags = 0; // there are no flags
 826         loadmodel->numframes = pheader->numscenes;
 827         loadmodel->synctype = ST_SYNC;
 828         loadmodel->numtris = pheader->numtris;
 829         loadmodel->numverts = 0;
 830
 831         {
 832                 unsigned int i;
 833                 float modelradius, corner[2];
 834                 // model bbox
 835                 modelradius = pheader->radius;
 836                 for (i = 0;i < 3;i++)
 837                 {
 838                         loadmodel->normalmins[i] = pheader->mins[i];
 839                         loadmodel->normalmaxs[i] = pheader->maxs[i];
 840                         loadmodel->rotatedmins[i] = -modelradius;
 841                         loadmodel->rotatedmaxs[i] = modelradius;
 842                 }
 843                 corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
 844                 corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
 845                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
 846                 if (loadmodel->yawmaxs[0] > modelradius)
 847                         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
 848                 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
 849                 loadmodel->yawmins[2] = loadmodel->normalmins[2];
 850                 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 851                 loadmodel->radius = modelradius;
 852                 loadmodel->radius2 = modelradius * modelradius;
 853         }
 854
 855         {
 856                 // FIXME: add shaders, and make them switchable shader sets and...
 857                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) + sizeof(skinframe_t));
 858                 loadmodel->skinscenes[0].firstframe = 0;
 859                 loadmodel->skinscenes[0].framecount = 1;
 860                 loadmodel->skinscenes[0].loop = true;
 861                 loadmodel->skinscenes[0].framerate = 10;
 862                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + 1);
 863                 loadmodel->skinframes->base = NULL;
 864                 loadmodel->skinframes->fog = NULL;
 865                 loadmodel->skinframes->pants = NULL;
 866                 loadmodel->skinframes->shirt = NULL;
 867                 loadmodel->skinframes->glow = NULL;
 868                 loadmodel->skinframes->merged = NULL;
 869                 loadmodel->numskins = 1;
 870         }
 871
 872         // go through the lumps, swapping things
 873
 874         {
 875                 int i, numposes;
 876                 zymscene_t *scene;
 877         //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
 878                 loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 879                 scene = (void *) (pheader->lump_scenes.start + pbase);
 880                 numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
 881                 for (i = 0;i < pheader->numscenes;i++)
 882                 {
 883                         memcpy(loadmodel->animscenes[i].name, scene->name, 32);
 884                         loadmodel->animscenes[i].firstframe = BigLong(scene->start);
 885                         loadmodel->animscenes[i].framecount = BigLong(scene->length);
 886                         loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
 887                         loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
 888                         if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
 889                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
 890                         if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
 891                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
 892                         if (loadmodel->animscenes[i].framerate < 0)
 893                                 Host_Error("Mod_LoadZymoticModel: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
 894                         scene++;
 895                 }
 896         }
 897
 898         {
 899                 int i;
 900                 float *poses;
 901         //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
 902                 loadmodel->zymdata_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
 903                 poses = (void *) (pheader->lump_poses.start + pbase);
 904                 for (i = 0;i < pheader->lump_poses.length / 4;i++)
 905                         loadmodel->zymdata_poses[i] = BigFloat(poses[i]);
 906         }
 907
 908         {
 909                 int i;
 910                 zymbone_t *bone;
 911         //      zymlump_t lump_bones; // zymbone_t bone[numbones];
 912                 loadmodel->zymdata_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(zymbone_t));
 913                 bone = (void *) (pheader->lump_bones.start + pbase);
 914                 for (i = 0;i < pheader->numbones;i++)
 915                 {
 916                         memcpy(loadmodel->zymdata_bones[i].name, bone[i].name, sizeof(bone[i].name));
 917                         loadmodel->zymdata_bones[i].flags = BigLong(bone[i].flags);
 918                         loadmodel->zymdata_bones[i].parent = BigLong(bone[i].parent);
 919                         if (loadmodel->zymdata_bones[i].parent >= i)
 920                                 Host_Error("Mod_LoadZymoticModel: bone[%i].parent >= %i in %s\n", i, i, loadmodel->name);
 921                 }
 922         }
 923
 924         {
 925                 int i, *bonecount;
 926         //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
 927                 loadmodel->zymdata_vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
 928                 bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
 929                 for (i = 0;i < pheader->numverts;i++)
 930                 {
 931                         loadmodel->zymdata_vertbonecounts[i] = BigLong(bonecount[i]);
 932                         if (loadmodel->zymdata_vertbonecounts[i] < 1)
 933                                 Host_Error("Mod_LoadZymoticModel: bone vertex count < 1 in %s\n", loadmodel->name);
 934                 }
 935         }
 936
 937         {
 938                 int i;
 939                 zymvertex_t *vertdata;
 940         //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
 941                 loadmodel->zymdata_verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
 942                 vertdata = (void *) (pheader->lump_verts.start + pbase);
 943                 for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
 944                 {
 945                         loadmodel->zymdata_verts[i].bonenum = BigLong(vertdata[i].bonenum);
 946                         loadmodel->zymdata_verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
 947                         loadmodel->zymdata_verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
 948                         loadmodel->zymdata_verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
 949                 }
 950         }
 951
 952         {
 953                 int i;
 954                 float *intexcoord, *outtexcoord;
 955         //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
 956                 loadmodel->zymdata_texcoords = outtexcoord = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[4]));
 957                 intexcoord = (void *) (pheader->lump_texcoords.start + pbase);
 958                 for (i = 0;i < pheader->numverts;i++)
 959                 {
 960                         outtexcoord[i*4+0] = BigFloat(intexcoord[i*2+0]);
 961                         // flip T coordinate for OpenGL
 962                         outtexcoord[i*4+1] = 1 - BigFloat(intexcoord[i*2+1]);
 963                 }
 964         }
 965
 966         {
 967                 int i, count, *renderlist, *renderlistend, *outrenderlist;
 968         //      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)
 969                 loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, pheader->lump_render.length);
 970                 // byteswap, validate, and swap winding order of tris
 971                 count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
 972                 if (pheader->lump_render.length != count)
 973                         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);
 974                 outrenderlist = loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, count);
 975                 renderlist = (void *) (pheader->lump_render.start + pbase);
 976                 renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
 977                 for (i = 0;i < pheader->numshaders;i++)
 978                 {
 979                         if (renderlist >= renderlistend)
 980                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
 981                         count = BigLong(*renderlist);renderlist++;
 982                         if (renderlist + count * 3 > renderlistend)
 983                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
 984                         *outrenderlist++ = count;
 985                         while (count--)
 986                         {
 987                                 outrenderlist[2] = BigLong(renderlist[0]);
 988                                 outrenderlist[1] = BigLong(renderlist[1]);
 989                                 outrenderlist[0] = BigLong(renderlist[2]);
 990                                 if ((unsigned int)outrenderlist[0] >= (unsigned int)pheader->numverts
 991                                  || (unsigned int)outrenderlist[1] >= (unsigned int)pheader->numverts
 992                                  || (unsigned int)outrenderlist[2] >= (unsigned int)pheader->numverts)
 993                                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
 994                                 renderlist += 3;
 995                                 outrenderlist += 3;
 996                         }
 997                 }
 998         }
 999
1000         {
1001                 int i;
1002                 char *shadername;
1003         //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1004                 loadmodel->zymdata_textures = Mem_Alloc(loadmodel->mempool, pheader->numshaders * sizeof(rtexture_t *));
1005                 shadername = (void *) (pheader->lump_shaders.start + pbase);
1006                 for (i = 0;i < pheader->numshaders;i++)
1007                         loadmodel->zymdata_textures[i] = loadtextureimage(loadmodel->texturepool, shadername + i * 32, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0));
1008         }
1009
1010         {
1011         //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1012                 loadmodel->zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1013                 memcpy(loadmodel->zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1014         }
1015 }