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, aliasvertex_t *out)
  41 {
  42         int i, j;
  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                 VectorScale(temp, 16.0f, temp);
  68                 temp[0] = bound(-32768, temp[0], 32767);
  69                 temp[1] = bound(-32768, temp[1], 32767);
  70                 temp[2] = bound(-32768, temp[2], 32767);
  71
  72                 j = vertremap[i]; // not onseam
  73                 if (j >= 0)
  74                         VectorCopy(temp, out[j].origin);
  75                 j = vertremap[i+inverts]; // onseam
  76                 if (j >= 0)
  77                         VectorCopy(temp, out[j].origin);
  78         }
  79 }
  80
  81 static void Mod_BuildAliasVertexTextureVectors(int numtriangles, const int *elements, int numverts, aliasvertex_t *vertices, const float *texcoords, float *vertexbuffer, float *svectorsbuffer, float *tvectorsbuffer, float *normalsbuffer)
  82 {
  83         int i;
  84         for (i = 0;i < numverts;i++)
  85                 VectorScale(vertices[i].origin, (1.0f / 16.0f), &vertexbuffer[i * 4]);
  86         Mod_BuildTextureVectorsAndNormals(numverts, numtriangles, vertexbuffer, texcoords, elements, svectorsbuffer, tvectorsbuffer, normalsbuffer);
  87         for (i = 0;i < numverts;i++)
  88         {
  89                 vertices[i].normal[0] = normalsbuffer[i * 4 + 0] * 127.0f;
  90                 vertices[i].normal[1] = normalsbuffer[i * 4 + 1] * 127.0f;
  91                 vertices[i].normal[2] = normalsbuffer[i * 4 + 2] * 127.0f;
  92                 vertices[i].svector[0] = svectorsbuffer[i * 4 + 0] * 127.0f;
  93                 vertices[i].svector[1] = svectorsbuffer[i * 4 + 1] * 127.0f;
  94                 vertices[i].svector[2] = svectorsbuffer[i * 4 + 2] * 127.0f;
  95         }
  96 }
  97
  98 static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, vec3_t scale, vec3_t translate)
  99 {
 100         daliasframetype_t       *pframetype;
 101         daliasframe_t           *pinframe;
 102         daliasgroup_t           *group;
 103         daliasinterval_t        *intervals;
 104         int                                     i, f, pose, groupframes;
 105         float                           interval;
 106         animscene_t                     *scene;
 107         float                           *vertexbuffer, *svectorsbuffer, *tvectorsbuffer, *normalsbuffer;
 108         pose = 0;
 109         scene = loadmodel->animscenes;
 110         vertexbuffer = Mem_Alloc(tempmempool, loadmodel->numverts * sizeof(float[4]) * 4);
 111         svectorsbuffer = vertexbuffer + loadmodel->numverts * 4;
 112         tvectorsbuffer = svectorsbuffer + loadmodel->numverts * 4;
 113         normalsbuffer = tvectorsbuffer + loadmodel->numverts * 4;
 114         for (f = 0;f < loadmodel->numframes;f++)
 115         {
 116                 pframetype = (daliasframetype_t *)datapointer;
 117                 datapointer += sizeof(daliasframetype_t);
 118                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 119                 {
 120                         // a single frame is still treated as a group
 121                         interval = 0.1f;
 122                         groupframes = 1;
 123                 }
 124                 else
 125                 {
 126                         // read group header
 127                         group = (daliasgroup_t *)datapointer;
 128                         datapointer += sizeof(daliasgroup_t);
 129                         groupframes = LittleLong (group->numframes);
 130
 131                         // intervals (time per frame)
 132                         intervals = (daliasinterval_t *)datapointer;
 133                         datapointer += sizeof(daliasinterval_t) * groupframes;
 134
 135                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 136                         if (interval < 0.01f)
 137                                 Host_Error("Mod_LoadAliasGroup: invalid interval");
 138                 }
 139
 140                 // get scene name from first frame
 141                 pinframe = (daliasframe_t *)datapointer;
 142
 143                 strcpy(scene->name, pinframe->name);
 144                 scene->firstframe = pose;
 145                 scene->framecount = groupframes;
 146                 scene->framerate = 1.0f / interval;
 147                 scene->loop = true;
 148                 scene++;
 149
 150                 // read frames
 151                 for (i = 0;i < groupframes;i++)
 152                 {
 153                         pinframe = (daliasframe_t *)datapointer;
 154                         datapointer += sizeof(daliasframe_t);
 155                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->mdlmd2data_pose + pose * loadmodel->numverts);
 156                         Mod_BuildAliasVertexTextureVectors(loadmodel->numtris, loadmodel->mdlmd2data_indices, loadmodel->numverts, loadmodel->mdlmd2data_pose + pose * loadmodel->numverts, loadmodel->mdlmd2data_texcoords, vertexbuffer, svectorsbuffer, tvectorsbuffer, normalsbuffer);
 157                         datapointer += sizeof(trivertx_t) * inverts;
 158                         pose++;
 159                 }
 160         }
 161         Mem_Free(vertexbuffer);
 162 }
 163
 164 static rtexture_t *GL_TextureForSkinLayer(const qbyte *in, int width, int height, const char *name, const unsigned int *palette, int precache)
 165 {
 166         int i;
 167         for (i = 0;i < width*height;i++)
 168                 if (((qbyte *)&palette[in[i]])[3] > 0)
 169                         return R_LoadTexture2D (loadmodel->texturepool, name, width, height, in, TEXTYPE_PALETTE, (r_mipskins.integer ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0), palette);
 170         return NULL;
 171 }
 172
 173 static int Mod_LoadExternalSkin (char *basename, skinframe_t *skinframe, int precache)
 174 {
 175         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);
 176         if (!skinframe->base)
 177                 skinframe->base   = loadtextureimagewithmaskandnmap(loadmodel->texturepool, basename, 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0), 1);
 178         skinframe->fog    = image_masktex;
 179         skinframe->nmap   = image_nmaptex;
 180         skinframe->gloss  = loadtextureimage(loadmodel->texturepool, va("%s_gloss" , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 181         skinframe->pants  = loadtextureimage(loadmodel->texturepool, va("%s_pants" , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 182         skinframe->shirt  = loadtextureimage(loadmodel->texturepool, va("%s_shirt" , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 183         skinframe->glow   = loadtextureimage(loadmodel->texturepool, va("%s_glow"  , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 184         skinframe->merged = NULL;
 185         return skinframe->base != NULL || skinframe->pants != NULL || skinframe->shirt != NULL || skinframe->glow != NULL;
 186 }
 187
 188 static int Mod_LoadInternalSkin (char *basename, qbyte *skindata, int width, int height, skinframe_t *skinframe, int precache)
 189 {
 190         qbyte *temp1, *temp2;
 191         if (!skindata)
 192                 return false;
 193         temp1 = Mem_Alloc(loadmodel->mempool, width * height * 8);
 194         temp2 = temp1 + width * height * 4;
 195         Image_Copy8bitRGBA(skindata, temp1, width * height, palette_nofullbrights);
 196         Image_HeightmapToNormalmap(temp1, temp2, width, height, false, 1);
 197         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);
 198         Mem_Free(temp1);
 199         skinframe->gloss  = NULL;
 200         skinframe->pants  = GL_TextureForSkinLayer(skindata, width, height, va("%s_pants", basename), palette_pantsaswhite, false); // pants
 201         skinframe->shirt  = GL_TextureForSkinLayer(skindata, width, height, va("%s_shirt", basename), palette_shirtaswhite, false); // shirt
 202         skinframe->glow   = GL_TextureForSkinLayer(skindata, width, height, va("%s_glow", basename), palette_onlyfullbrights, precache); // glow
 203         if (skinframe->pants || skinframe->shirt)
 204         {
 205                 skinframe->base   = GL_TextureForSkinLayer(skindata, width, height, va("%s_normal", basename), palette_nocolormapnofullbrights, false); // normal (no special colors)
 206                 skinframe->merged = GL_TextureForSkinLayer(skindata, width, height, va("%s_body", basename), palette_nofullbrights, precache); // body (normal + pants + shirt, but not glow)
 207         }
 208         else
 209                 skinframe->base   = GL_TextureForSkinLayer(skindata, width, height, va("%s_base", basename), palette_nofullbrights, precache); // no special colors
 210         // quake model skins don't have alpha
 211         skinframe->fog = NULL;
 212         return true;
 213 }
 214
 215 #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);
 216 #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);
 217 extern void R_Model_Alias_Draw(entity_render_t *ent);
 218 extern void R_Model_Alias_DrawFakeShadow(entity_render_t *ent);
 219 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 220 extern void R_Model_Alias_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor);
 221 void Mod_LoadAliasModel (model_t *mod, void *buffer)
 222 {
 223         int                                             i, j, version, numverts, totalposes, totalskins, skinwidth, skinheight, totalverts, groupframes, groupskins;
 224         mdl_t                                   *pinmodel;
 225         stvert_t                                *pinstverts;
 226         dtriangle_t                             *pintriangles;
 227         daliasskintype_t                *pinskintype;
 228         daliasskingroup_t               *pinskingroup;
 229         daliasskininterval_t    *pinskinintervals;
 230         daliasframetype_t               *pinframetype;
 231         daliasgroup_t                   *pinframegroup;
 232         float                                   scales, scalet, scale[3], translate[3], interval;
 233         qbyte                                   *datapointer, *startframes, *startskins;
 234         char                                    name[MAX_QPATH];
 235         skinframe_t                             tempskinframe;
 236         animscene_t                             *tempskinscenes;
 237         skinframe_t                             *tempskinframes;
 238         modelyawradius = 0;
 239         modelradius = 0;
 240
 241         datapointer = buffer;
 242         pinmodel = (mdl_t *)datapointer;
 243         datapointer += sizeof(mdl_t);
 244
 245         version = LittleLong (pinmodel->version);
 246         if (version != ALIAS_VERSION)
 247                 Host_Error ("%s has wrong version number (%i should be %i)",
 248                                  loadmodel->name, version, ALIAS_VERSION);
 249
 250         loadmodel->type = mod_alias;
 251         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 252         loadmodel->DrawSky = NULL;
 253         loadmodel->Draw = R_Model_Alias_Draw;
 254         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 255         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 256         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 257
 258         loadmodel->numskins = LittleLong(pinmodel->numskins);
 259         BOUNDI(loadmodel->numskins,0,256);
 260         skinwidth = LittleLong (pinmodel->skinwidth);
 261         BOUNDI(skinwidth,0,4096);
 262         skinheight = LittleLong (pinmodel->skinheight);
 263         BOUNDI(skinheight,0,4096);
 264         loadmodel->numverts = numverts = LittleLong(pinmodel->numverts);
 265         BOUNDI(loadmodel->numverts,0,MAXALIASVERTS);
 266         loadmodel->numtris = LittleLong(pinmodel->numtris);
 267         BOUNDI(loadmodel->numtris,0,MAXALIASTRIS);
 268         loadmodel->numframes = LittleLong(pinmodel->numframes);
 269         BOUNDI(loadmodel->numframes,0,65536);
 270         loadmodel->synctype = LittleLong (pinmodel->synctype);
 271         BOUNDI(loadmodel->synctype,0,2);
 272         loadmodel->flags = LittleLong (pinmodel->flags);
 273
 274         for (i = 0;i < 3;i++)
 275         {
 276                 scale[i] = LittleFloat (pinmodel->scale[i]);
 277                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 278         }
 279
 280         startskins = datapointer;
 281         totalskins = 0;
 282         for (i = 0;i < loadmodel->numskins;i++)
 283         {
 284                 pinskintype = (daliasskintype_t *)datapointer;
 285                 datapointer += sizeof(daliasskintype_t);
 286                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 287                         groupskins = 1;
 288                 else
 289                 {
 290                         pinskingroup = (daliasskingroup_t *)datapointer;
 291                         datapointer += sizeof(daliasskingroup_t);
 292                         groupskins = LittleLong(pinskingroup->numskins);
 293                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 294                 }
 295
 296                 for (j = 0;j < groupskins;j++)
 297                 {
 298                         datapointer += skinwidth * skinheight;
 299                         totalskins++;
 300                 }
 301         }
 302
 303         pinstverts = (stvert_t *)datapointer;
 304         datapointer += sizeof(stvert_t) * numverts;
 305
 306         pintriangles = (dtriangle_t *)datapointer;
 307         datapointer += sizeof(dtriangle_t) * loadmodel->numtris;
 308
 309         startframes = datapointer;
 310         totalposes = 0;
 311         for (i = 0;i < loadmodel->numframes;i++)
 312         {
 313                 pinframetype = (daliasframetype_t *)datapointer;
 314                 datapointer += sizeof(daliasframetype_t);
 315                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 316                         groupframes = 1;
 317                 else
 318                 {
 319                         pinframegroup = (daliasgroup_t *)datapointer;
 320                         datapointer += sizeof(daliasgroup_t);
 321                         groupframes = LittleLong(pinframegroup->numframes);
 322                         datapointer += sizeof(daliasinterval_t) * groupframes;
 323                 }
 324
 325                 for (j = 0;j < groupframes;j++)
 326                 {
 327                         datapointer += sizeof(daliasframe_t);
 328                         datapointer += sizeof(trivertx_t) * numverts;
 329                         totalposes++;
 330                 }
 331         }
 332
 333         // load the skins
 334         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 335         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, totalskins * sizeof(skinframe_t));
 336         totalskins = 0;
 337         datapointer = startskins;
 338         for (i = 0;i < loadmodel->numskins;i++)
 339         {
 340                 pinskintype = (daliasskintype_t *)datapointer;
 341                 datapointer += sizeof(daliasskintype_t);
 342
 343                 if (pinskintype->type == ALIAS_SKIN_SINGLE)
 344                 {
 345                         groupskins = 1;
 346                         interval = 0.1f;
 347                 }
 348                 else
 349                 {
 350                         pinskingroup = (daliasskingroup_t *)datapointer;
 351                         datapointer += sizeof(daliasskingroup_t);
 352
 353                         groupskins = LittleLong (pinskingroup->numskins);
 354
 355                         pinskinintervals = (daliasskininterval_t *)datapointer;
 356                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 357
 358                         interval = LittleFloat(pinskinintervals[0].interval);
 359                         if (interval < 0.01f)
 360                                 Host_Error("Mod_LoadAliasModel: invalid interval\n");
 361                 }
 362
 363                 sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 364                 loadmodel->skinscenes[i].firstframe = totalskins;
 365                 loadmodel->skinscenes[i].framecount = groupskins;
 366                 loadmodel->skinscenes[i].framerate = 1.0f / interval;
 367                 loadmodel->skinscenes[i].loop = true;
 368
 369                 for (j = 0;j < groupskins;j++)
 370                 {
 371                         if (groupskins > 1)
 372                                 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 373                         else
 374                                 sprintf (name, "%s_%i", loadmodel->name, i);
 375                         if (!Mod_LoadExternalSkin(name, loadmodel->skinframes + totalskins, i == 0))
 376                                 Mod_LoadInternalSkin(name, (qbyte *)datapointer, skinwidth, skinheight, loadmodel->skinframes + totalskins, i == 0);
 377                         datapointer += skinwidth * skinheight;
 378                         totalskins++;
 379                 }
 380         }
 381         // check for skins that don't exist in the model, but do exist as external images
 382         // (this was added because yummyluv kept pestering me about support for it)
 383         for (;;)
 384         {
 385                 sprintf (name, "%s_%i", loadmodel->name, loadmodel->numskins);
 386                 if (Mod_LoadExternalSkin(name, &tempskinframe, loadmodel->numskins == 0))
 387                 {
 388                         // expand the arrays to make room
 389                         tempskinscenes = loadmodel->skinscenes;
 390                         tempskinframes = loadmodel->skinframes;
 391                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 392                         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(skinframe_t));
 393                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 394                         memcpy(loadmodel->skinframes, tempskinframes, totalskins * sizeof(skinframe_t));
 395                         Mem_Free(tempskinscenes);
 396                         Mem_Free(tempskinframes);
 397                         // store the info about the new skin
 398                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 399                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 400                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 401                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 402                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 403                         loadmodel->skinframes[totalskins] = tempskinframe;
 404                         loadmodel->numskins++;
 405                         totalskins++;
 406                 }
 407                 else
 408                         break;
 409         }
 410
 411         // store texture coordinates into temporary array, they will be stored after usage is determined (triangle data)
 412         scales = 1.0 / skinwidth;
 413         scalet = 1.0 / skinheight;
 414         for (i = 0;i < numverts;i++)
 415         {
 416                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 417                 vertst[i][0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 418                 vertst[i][1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 419                 vertst[i+numverts][0] = vertst[i][0] + 0.5;
 420                 vertst[i+numverts][1] = vertst[i][1];
 421                 vertusage[i] = 0;
 422                 vertusage[i+numverts] = 0;
 423         }
 424
 425 // load triangle data
 426         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->numtris);
 427
 428         // count the vertices used
 429         for (i = 0;i < numverts*2;i++)
 430                 vertusage[i] = 0;
 431         for (i = 0;i < loadmodel->numtris;i++)
 432         {
 433                 temptris[i][0] = LittleLong(pintriangles[i].vertindex[0]);
 434                 temptris[i][1] = LittleLong(pintriangles[i].vertindex[1]);
 435                 temptris[i][2] = LittleLong(pintriangles[i].vertindex[2]);
 436                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 437                 {
 438                         if (vertonseam[temptris[i][0]]) temptris[i][0] += numverts;
 439                         if (vertonseam[temptris[i][1]]) temptris[i][1] += numverts;
 440                         if (vertonseam[temptris[i][2]]) temptris[i][2] += numverts;
 441                 }
 442                 vertusage[temptris[i][0]]++;
 443                 vertusage[temptris[i][1]]++;
 444                 vertusage[temptris[i][2]]++;
 445         }
 446         // build remapping table and compact array
 447         totalverts = 0;
 448         for (i = 0;i < numverts*2;i++)
 449         {
 450                 if (vertusage[i])
 451                 {
 452                         vertremap[i] = totalverts;
 453                         vertst[totalverts][0] = vertst[i][0];
 454                         vertst[totalverts][1] = vertst[i][1];
 455                         totalverts++;
 456                 }
 457                 else
 458                         vertremap[i] = -1; // not used at all
 459         }
 460         loadmodel->numverts = totalverts;
 461         // remap the triangle references
 462         for (i = 0;i < loadmodel->numtris;i++)
 463         {
 464                 loadmodel->mdlmd2data_indices[i*3+0] = vertremap[temptris[i][0]];
 465                 loadmodel->mdlmd2data_indices[i*3+1] = vertremap[temptris[i][1]];
 466                 loadmodel->mdlmd2data_indices[i*3+2] = vertremap[temptris[i][2]];
 467         }
 468         // store the texture coordinates
 469         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, sizeof(float[4]) * totalverts);
 470         for (i = 0;i < totalverts;i++)
 471         {
 472                 loadmodel->mdlmd2data_texcoords[i*4+0] = vertst[i][0];
 473                 loadmodel->mdlmd2data_texcoords[i*4+1] = vertst[i][1];
 474         }
 475
 476 // load the frames
 477         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 478         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, sizeof(aliasvertex_t) * totalposes * totalverts);
 479
 480         // LordHavoc: doing proper bbox for model
 481         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 482         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 483
 484         Mod_MDL_LoadFrames (startframes, numverts, scale, translate);
 485
 486         modelyawradius = sqrt(modelyawradius);
 487         modelradius = sqrt(modelradius);
 488         for (j = 0;j < 3;j++)
 489         {
 490                 loadmodel->normalmins[j] = aliasbboxmin[j];
 491                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 492                 loadmodel->rotatedmins[j] = -modelradius;
 493                 loadmodel->rotatedmaxs[j] = modelradius;
 494         }
 495         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 496         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 497         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 498         loadmodel->radius = modelradius;
 499         loadmodel->radius2 = modelradius * modelradius;
 500
 501         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 502         Mod_ValidateElements(loadmodel->mdlmd2data_indices, loadmodel->numtris, loadmodel->numverts, __FILE__, __LINE__);
 503         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 504 }
 505
 506 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, aliasvertex_t *out, int *vertremap)
 507 {
 508         int i;
 509         float dist;
 510         trivertx_t *in;
 511         vec3_t temp;
 512         for (i = 0;i < loadmodel->numverts;i++)
 513         {
 514                 in = v + vertremap[i];
 515                 temp[0] = in->v[0] * scale[0] + translate[0];
 516                 temp[1] = in->v[1] * scale[1] + translate[1];
 517                 temp[2] = in->v[2] * scale[2] + translate[2];
 518                 // update bounding box
 519                 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
 520                 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
 521                 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
 522                 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
 523                 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
 524                 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
 525                 dist = temp[0]*temp[0]+temp[1]*temp[1];
 526                 if (modelyawradius < dist)
 527                         modelyawradius = dist;
 528                 dist += temp[2]*temp[2];
 529                 if (modelradius < dist)
 530                         modelradius = dist;
 531                 VectorScale(temp, 16.0f, temp);
 532                 temp[0] = bound(-32768, temp[0], 32767);
 533                 temp[1] = bound(-32768, temp[1], 32767);
 534                 temp[2] = bound(-32768, temp[2], 32767);
 535                 VectorCopy(temp, out[i].origin);
 536         }
 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, scale[3], translate[3];
 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         float *vertexbuffer, *svectorsbuffer, *tvectorsbuffer, *normalsbuffer;
 561
 562         pinmodel = buffer;
 563         base = buffer;
 564
 565         version = LittleLong (pinmodel->version);
 566         if (version != MD2ALIAS_VERSION)
 567                 Host_Error ("%s has wrong version number (%i should be %i)",
 568                         loadmodel->name, version, MD2ALIAS_VERSION);
 569
 570         loadmodel->type = mod_alias;
 571         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 572         loadmodel->DrawSky = NULL;
 573         loadmodel->Draw = R_Model_Alias_Draw;
 574         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 575         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 576         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 577
 578         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > MD2MAX_TRIANGLES)
 579                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 580         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > MD2MAX_VERTS)
 581                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 582         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > MD2MAX_FRAMES)
 583                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 584         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > MAX_SKINS)
 585                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 586
 587         end = LittleLong(pinmodel->ofs_end);
 588         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
 589                 Host_Error ("%s is not a valid model", loadmodel->name);
 590         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
 591                 Host_Error ("%s is not a valid model", loadmodel->name);
 592         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
 593                 Host_Error ("%s is not a valid model", loadmodel->name);
 594         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
 595                 Host_Error ("%s is not a valid model", loadmodel->name);
 596         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
 597                 Host_Error ("%s is not a valid model", loadmodel->name);
 598
 599         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 600         numxyz = LittleLong(pinmodel->num_xyz);
 601         numst = LittleLong(pinmodel->num_st);
 602         loadmodel->numtris = LittleLong(pinmodel->num_tris);
 603         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 604
 605         loadmodel->flags = 0; // there are no MD2 flags
 606         loadmodel->synctype = ST_RAND;
 607
 608         // load the skins
 609         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 610         if (loadmodel->numskins)
 611         {
 612                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins + sizeof(skinframe_t) * loadmodel->numskins);
 613                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + loadmodel->numskins);
 614                 for (i = 0;i < loadmodel->numskins;i++)
 615                 {
 616                         loadmodel->skinscenes[i].firstframe = i;
 617                         loadmodel->skinscenes[i].framecount = 1;
 618                         loadmodel->skinscenes[i].loop = true;
 619                         loadmodel->skinscenes[i].framerate = 10;
 620                         loadmodel->skinframes[i].base = loadtextureimagewithmaskandnmap (loadmodel->texturepool, inskin, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0), 1);
 621                         loadmodel->skinframes[i].fog = image_masktex;
 622                         loadmodel->skinframes[i].nmap = image_nmaptex;
 623                         loadmodel->skinframes[i].gloss = NULL;
 624                         loadmodel->skinframes[i].pants = NULL;
 625                         loadmodel->skinframes[i].shirt = NULL;
 626                         loadmodel->skinframes[i].glow = NULL;
 627                         loadmodel->skinframes[i].merged = NULL;
 628                         inskin += MD2MAX_SKINNAME;
 629                 }
 630         }
 631
 632         // load the triangles and stvert data
 633         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 634         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 635         skinwidth = LittleLong(pinmodel->skinwidth);
 636         skinheight = LittleLong(pinmodel->skinheight);
 637
 638         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 639         s = 1.0f / skinwidth;
 640         t = 1.0f / skinheight;
 641         for (i = 0;i < numst;i++)
 642         {
 643                 j = (unsigned short) LittleShort(inst[i*2+0]);
 644                 k = (unsigned short) LittleShort(inst[i*2+1]);
 645                 if (j >= skinwidth || k >= skinheight)
 646                 {
 647                         Mem_Free(stverts);
 648                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
 649                 }
 650                 stverts[i*2+0] = j * s;
 651                 stverts[i*2+1] = k * t;
 652         }
 653
 654         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 655         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->numtris * 3 * sizeof(*hash));
 656         // swap the triangle list
 657         num = 0;
 658         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 659         for (i = 0;i < loadmodel->numtris;i++)
 660         {
 661                 for (j = 0;j < 3;j++)
 662                 {
 663                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 664                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 665                         if (xyz >= numxyz || st >= numst)
 666                         {
 667                                 Mem_Free(md2verthash);
 668                                 Mem_Free(md2verthashdata);
 669                                 Mem_Free(stverts);
 670                                 if (xyz >= numxyz)
 671                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
 672                                 if (st >= numst)
 673                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
 674                         }
 675                         s = stverts[st*2+0];
 676                         t = stverts[st*2+1];
 677                         hashindex = (xyz * 17 + st) & 255;
 678                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 679                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 680                                         break;
 681                         if (hash == NULL)
 682                         {
 683                                 hash = md2verthashdata + num++;
 684                                 hash->xyz = xyz;
 685                                 hash->st[0] = s;
 686                                 hash->st[1] = t;
 687                                 hash->next = md2verthash[hashindex];
 688                                 md2verthash[hashindex] = hash;
 689                         }
 690                         loadmodel->mdlmd2data_indices[i*3+j] = (hash - md2verthashdata);
 691                 }
 692         }
 693
 694         Mem_Free(stverts);
 695
 696         loadmodel->numverts = num;
 697         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 698         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, num * sizeof(float[4]));
 699         for (i = 0;i < num;i++)
 700         {
 701                 hash = md2verthashdata + i;
 702                 vertremap[i] = hash->xyz;
 703                 loadmodel->mdlmd2data_texcoords[i*4+0] = hash->st[0];
 704                 loadmodel->mdlmd2data_texcoords[i*4+1] = hash->st[1];
 705         }
 706
 707         Mem_Free(md2verthash);
 708         Mem_Free(md2verthashdata);
 709
 710         // load frames
 711         // LordHavoc: doing proper bbox for model
 712         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 713         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 714         modelyawradius = 0;
 715         modelradius = 0;
 716
 717         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 718         // load the frames
 719         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 720         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, loadmodel->numverts * loadmodel->numframes * sizeof(trivertx_t));
 721
 722         vertexbuffer = Mem_Alloc(tempmempool, loadmodel->numverts * sizeof(float[4]) * 4);
 723         svectorsbuffer = vertexbuffer + loadmodel->numverts * 4;
 724         tvectorsbuffer = svectorsbuffer + loadmodel->numverts * 4;
 725         normalsbuffer = tvectorsbuffer + loadmodel->numverts * 4;
 726         for (i = 0;i < loadmodel->numframes;i++)
 727         {
 728                 pinframe = (md2frame_t *)datapointer;
 729                 datapointer += sizeof(md2frame_t);
 730                 for (j = 0;j < 3;j++)
 731                 {
 732                         scale[j] = LittleFloat(pinframe->scale[j]);
 733                         translate[j] = LittleFloat(pinframe->translate[j]);
 734                 }
 735                 Mod_MD2_ConvertVerts(scale, translate, (void *)datapointer, loadmodel->mdlmd2data_pose + i * loadmodel->numverts, vertremap);
 736                 Mod_BuildAliasVertexTextureVectors(loadmodel->numtris, loadmodel->mdlmd2data_indices, loadmodel->numverts, loadmodel->mdlmd2data_pose + i * loadmodel->numverts, loadmodel->mdlmd2data_texcoords, vertexbuffer, svectorsbuffer, tvectorsbuffer, normalsbuffer);
 737                 datapointer += numxyz * sizeof(trivertx_t);
 738
 739                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 740                 loadmodel->animscenes[i].firstframe = i;
 741                 loadmodel->animscenes[i].framecount = 1;
 742                 loadmodel->animscenes[i].framerate = 10;
 743                 loadmodel->animscenes[i].loop = true;
 744         }
 745         Mem_Free(vertexbuffer);
 746
 747         Mem_Free(vertremap);
 748
 749         // LordHavoc: model bbox
 750         modelyawradius = sqrt(modelyawradius);
 751         modelradius = sqrt(modelradius);
 752         for (j = 0;j < 3;j++)
 753         {
 754                 loadmodel->normalmins[j] = aliasbboxmin[j];
 755                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 756                 loadmodel->rotatedmins[j] = -modelradius;
 757                 loadmodel->rotatedmaxs[j] = modelradius;
 758         }
 759         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 760         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 761         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 762         loadmodel->radius = modelradius;
 763         loadmodel->radius2 = modelradius * modelradius;
 764
 765         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 766         Mod_ValidateElements(loadmodel->mdlmd2data_indices, loadmodel->numtris, loadmodel->numverts, __FILE__, __LINE__);
 767         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 768 }
 769
 770 extern void R_Model_Zymotic_DrawSky(entity_render_t *ent);
 771 extern void R_Model_Zymotic_Draw(entity_render_t *ent);
 772 extern void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent);
 773 extern void R_Model_Zymotic_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 774 extern void R_Model_Zymotic_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor);
 775 void Mod_LoadZymoticModel(model_t *mod, void *buffer)
 776 {
 777         zymtype1header_t *pinmodel, *pheader;
 778         qbyte *pbase;
 779
 780         pinmodel = (void *)buffer;
 781         pbase = buffer;
 782         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
 783                 Host_Error ("Mod_LoadZymoticModel: %s is not a zymotic model\n");
 784         if (BigLong(pinmodel->type) != 1)
 785                 Host_Error ("Mod_LoadZymoticModel: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
 786
 787         loadmodel->type = mod_alias;
 788         loadmodel->aliastype = ALIASTYPE_ZYM;
 789         loadmodel->DrawSky = NULL;
 790         loadmodel->Draw = R_Model_Zymotic_Draw;
 791         loadmodel->DrawFakeShadow = NULL;//R_Model_Zymotic_DrawFakeShadow;
 792         loadmodel->DrawShadowVolume = NULL;//R_Model_Zymotic_DrawShadowVolume;
 793         loadmodel->DrawLight = NULL;//R_Model_Zymotic_DrawLight;
 794
 795         // byteswap header
 796         pheader = pinmodel;
 797         pheader->type = BigLong(pinmodel->type);
 798         pheader->filesize = BigLong(pinmodel->filesize);
 799         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
 800         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
 801         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
 802         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
 803         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
 804         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
 805         pheader->radius = BigFloat(pinmodel->radius);
 806         pheader->numverts = loadmodel->zymnum_verts = BigLong(pinmodel->numverts);
 807         pheader->numtris = loadmodel->zymnum_tris = BigLong(pinmodel->numtris);
 808         pheader->numshaders = loadmodel->zymnum_shaders = BigLong(pinmodel->numshaders);
 809         pheader->numbones = loadmodel->zymnum_bones = BigLong(pinmodel->numbones);
 810         pheader->numscenes = loadmodel->zymnum_scenes = BigLong(pinmodel->numscenes);
 811         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
 812         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
 813         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
 814         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
 815         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
 816         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
 817         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
 818         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
 819         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
 820         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
 821         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
 822         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
 823         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
 824         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
 825         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
 826         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
 827         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
 828         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
 829
 830         loadmodel->flags = 0; // there are no flags
 831         loadmodel->numframes = pheader->numscenes;
 832         loadmodel->synctype = ST_SYNC;
 833         loadmodel->numtris = pheader->numtris;
 834         loadmodel->numverts = 0;
 835
 836         {
 837                 unsigned int i;
 838                 float modelradius, corner[2];
 839                 // model bbox
 840                 modelradius = pheader->radius;
 841                 for (i = 0;i < 3;i++)
 842                 {
 843                         loadmodel->normalmins[i] = pheader->mins[i];
 844                         loadmodel->normalmaxs[i] = pheader->maxs[i];
 845                         loadmodel->rotatedmins[i] = -modelradius;
 846                         loadmodel->rotatedmaxs[i] = modelradius;
 847                 }
 848                 corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
 849                 corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
 850                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
 851                 if (loadmodel->yawmaxs[0] > modelradius)
 852                         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
 853                 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
 854                 loadmodel->yawmins[2] = loadmodel->normalmins[2];
 855                 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 856                 loadmodel->radius = modelradius;
 857                 loadmodel->radius2 = modelradius * modelradius;
 858         }
 859
 860         {
 861                 // FIXME: add shaders, and make them switchable shader sets and...
 862                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) + sizeof(skinframe_t));
 863                 loadmodel->skinscenes[0].firstframe = 0;
 864                 loadmodel->skinscenes[0].framecount = 1;
 865                 loadmodel->skinscenes[0].loop = true;
 866                 loadmodel->skinscenes[0].framerate = 10;
 867                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + 1);
 868                 loadmodel->skinframes->base = NULL;
 869                 loadmodel->skinframes->fog = NULL;
 870                 loadmodel->skinframes->pants = NULL;
 871                 loadmodel->skinframes->shirt = NULL;
 872                 loadmodel->skinframes->glow = NULL;
 873                 loadmodel->skinframes->merged = NULL;
 874                 loadmodel->numskins = 1;
 875         }
 876
 877         // go through the lumps, swapping things
 878
 879         {
 880                 int i, numposes;
 881                 zymscene_t *scene;
 882         //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
 883                 loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 884                 scene = (void *) (pheader->lump_scenes.start + pbase);
 885                 numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
 886                 for (i = 0;i < pheader->numscenes;i++)
 887                 {
 888                         memcpy(loadmodel->animscenes[i].name, scene->name, 32);
 889                         loadmodel->animscenes[i].firstframe = BigLong(scene->start);
 890                         loadmodel->animscenes[i].framecount = BigLong(scene->length);
 891                         loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
 892                         loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
 893                         if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
 894                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
 895                         if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
 896                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
 897                         if (loadmodel->animscenes[i].framerate < 0)
 898                                 Host_Error("Mod_LoadZymoticModel: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
 899                         scene++;
 900                 }
 901         }
 902
 903         {
 904                 int i;
 905                 float *poses;
 906         //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
 907                 loadmodel->zymdata_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
 908                 poses = (void *) (pheader->lump_poses.start + pbase);
 909                 for (i = 0;i < pheader->lump_poses.length / 4;i++)
 910                         loadmodel->zymdata_poses[i] = BigFloat(poses[i]);
 911         }
 912
 913         {
 914                 int i;
 915                 zymbone_t *bone;
 916         //      zymlump_t lump_bones; // zymbone_t bone[numbones];
 917                 loadmodel->zymdata_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(zymbone_t));
 918                 bone = (void *) (pheader->lump_bones.start + pbase);
 919                 for (i = 0;i < pheader->numbones;i++)
 920                 {
 921                         memcpy(loadmodel->zymdata_bones[i].name, bone[i].name, sizeof(bone[i].name));
 922                         loadmodel->zymdata_bones[i].flags = BigLong(bone[i].flags);
 923                         loadmodel->zymdata_bones[i].parent = BigLong(bone[i].parent);
 924                         if (loadmodel->zymdata_bones[i].parent >= i)
 925                                 Host_Error("Mod_LoadZymoticModel: bone[%i].parent >= %i in %s\n", i, i, loadmodel->name);
 926                 }
 927         }
 928
 929         {
 930                 int i, *bonecount;
 931         //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
 932                 loadmodel->zymdata_vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
 933                 bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
 934                 for (i = 0;i < pheader->numverts;i++)
 935                 {
 936                         loadmodel->zymdata_vertbonecounts[i] = BigLong(bonecount[i]);
 937                         if (loadmodel->zymdata_vertbonecounts[i] < 1)
 938                                 Host_Error("Mod_LoadZymoticModel: bone vertex count < 1 in %s\n", loadmodel->name);
 939                 }
 940         }
 941
 942         {
 943                 int i;
 944                 zymvertex_t *vertdata;
 945         //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
 946                 loadmodel->zymdata_verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
 947                 vertdata = (void *) (pheader->lump_verts.start + pbase);
 948                 for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
 949                 {
 950                         loadmodel->zymdata_verts[i].bonenum = BigLong(vertdata[i].bonenum);
 951                         loadmodel->zymdata_verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
 952                         loadmodel->zymdata_verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
 953                         loadmodel->zymdata_verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
 954                 }
 955         }
 956
 957         {
 958                 int i;
 959                 float *intexcoord, *outtexcoord;
 960         //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
 961                 loadmodel->zymdata_texcoords = outtexcoord = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[4]));
 962                 intexcoord = (void *) (pheader->lump_texcoords.start + pbase);
 963                 for (i = 0;i < pheader->numverts;i++)
 964                 {
 965                         outtexcoord[i*4+0] = BigFloat(intexcoord[i*2+0]);
 966                         // flip T coordinate for OpenGL
 967                         outtexcoord[i*4+1] = 1 - BigFloat(intexcoord[i*2+1]);
 968                 }
 969         }
 970
 971         {
 972                 int i, count, *renderlist, *renderlistend, *outrenderlist;
 973         //      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)
 974                 loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, pheader->lump_render.length);
 975                 // byteswap, validate, and swap winding order of tris
 976                 count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
 977                 if (pheader->lump_render.length != count)
 978                         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);
 979                 outrenderlist = loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, count);
 980                 renderlist = (void *) (pheader->lump_render.start + pbase);
 981                 renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
 982                 for (i = 0;i < pheader->numshaders;i++)
 983                 {
 984                         if (renderlist >= renderlistend)
 985                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
 986                         count = BigLong(*renderlist);renderlist++;
 987                         if (renderlist + count * 3 > renderlistend)
 988                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
 989                         *outrenderlist++ = count;
 990                         while (count--)
 991                         {
 992                                 outrenderlist[2] = BigLong(renderlist[0]);
 993                                 outrenderlist[1] = BigLong(renderlist[1]);
 994                                 outrenderlist[0] = BigLong(renderlist[2]);
 995                                 if ((unsigned int)outrenderlist[0] >= (unsigned int)pheader->numverts
 996                                  || (unsigned int)outrenderlist[1] >= (unsigned int)pheader->numverts
 997                                  || (unsigned int)outrenderlist[2] >= (unsigned int)pheader->numverts)
 998                                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
 999                                 renderlist += 3;
1000                                 outrenderlist += 3;
1001                         }
1002                 }
1003         }
1004
1005         {
1006                 int i;
1007                 char *shadername;
1008         //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1009                 loadmodel->zymdata_textures = Mem_Alloc(loadmodel->mempool, pheader->numshaders * sizeof(rtexture_t *));
1010                 shadername = (void *) (pheader->lump_shaders.start + pbase);
1011                 for (i = 0;i < pheader->numshaders;i++)
1012                         loadmodel->zymdata_textures[i] = loadtextureimage(loadmodel->texturepool, shadername + i * 32, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0));
1013         }
1014
1015         {
1016         //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1017                 loadmodel->zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1018                 memcpy(loadmodel->zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1019         }
1020 }