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
 156                         // convert to MD2 frame headers
 157                         strcpy(loadmodel->mdlmd2data_frames[pose].name, pinframe->name);
 158                         VectorCopy(scale, loadmodel->mdlmd2data_frames[pose].scale);
 159                         VectorCopy(translate, loadmodel->mdlmd2data_frames[pose].translate);
 160
 161                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->mdlmd2data_pose + pose * loadmodel->numverts);
 162                         Mod_BuildAliasVertexTextureVectors(loadmodel->numtris, loadmodel->mdlmd2data_indices, loadmodel->numverts, loadmodel->mdlmd2data_pose + pose * loadmodel->numverts, loadmodel->mdlmd2data_texcoords, vertexbuffer, svectorsbuffer, tvectorsbuffer, normalsbuffer);
 163                         datapointer += sizeof(trivertx_t) * inverts;
 164                         pose++;
 165                 }
 166         }
 167         Mem_Free(vertexbuffer);
 168 }
 169
 170 static rtexture_t *GL_TextureForSkinLayer(const qbyte *in, int width, int height, const char *name, const unsigned int *palette, int precache)
 171 {
 172         int i;
 173         for (i = 0;i < width*height;i++)
 174                 if (((qbyte *)&palette[in[i]])[3] > 0)
 175                         return R_LoadTexture2D (loadmodel->texturepool, name, width, height, in, TEXTYPE_PALETTE, (r_mipskins.integer ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0), palette);
 176         return NULL;
 177 }
 178
 179 static int Mod_LoadExternalSkin (char *basename, skinframe_t *skinframe, int precache)
 180 {
 181         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);
 182         if (!skinframe->base)
 183                 skinframe->base   = loadtextureimagewithmaskandnmap(loadmodel->texturepool, basename, 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0), 1);
 184         skinframe->fog    = image_masktex;
 185         skinframe->nmap   = image_nmaptex;
 186         skinframe->gloss  = loadtextureimage(loadmodel->texturepool, va("%s_gloss" , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 187         skinframe->pants  = loadtextureimage(loadmodel->texturepool, va("%s_pants" , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 188         skinframe->shirt  = loadtextureimage(loadmodel->texturepool, va("%s_shirt" , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 189         skinframe->glow   = loadtextureimage(loadmodel->texturepool, va("%s_glow"  , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 190         skinframe->merged = NULL;
 191         return skinframe->base != NULL || skinframe->pants != NULL || skinframe->shirt != NULL || skinframe->glow != NULL;
 192 }
 193
 194 static int Mod_LoadInternalSkin (char *basename, qbyte *skindata, int width, int height, skinframe_t *skinframe, int precache)
 195 {
 196         qbyte *temp1, *temp2;
 197         if (!skindata)
 198                 return false;
 199         temp1 = Mem_Alloc(loadmodel->mempool, width * height * 8);
 200         temp2 = temp1 + width * height * 4;
 201         Image_Copy8bitRGBA(skindata, temp1, width * height, palette_nofullbrights);
 202         Image_HeightmapToNormalmap(temp1, temp2, width, height, false, 1);
 203         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);
 204         Mem_Free(temp1);
 205         skinframe->gloss  = NULL;
 206         skinframe->pants  = GL_TextureForSkinLayer(skindata, width, height, va("%s_pants", basename), palette_pantsaswhite, false); // pants
 207         skinframe->shirt  = GL_TextureForSkinLayer(skindata, width, height, va("%s_shirt", basename), palette_shirtaswhite, false); // shirt
 208         skinframe->glow   = GL_TextureForSkinLayer(skindata, width, height, va("%s_glow", basename), palette_onlyfullbrights, precache); // glow
 209         if (skinframe->pants || skinframe->shirt)
 210         {
 211                 skinframe->base   = GL_TextureForSkinLayer(skindata, width, height, va("%s_normal", basename), palette_nocolormapnofullbrights, false); // normal (no special colors)
 212                 skinframe->merged = GL_TextureForSkinLayer(skindata, width, height, va("%s_body", basename), palette_nofullbrights, precache); // body (normal + pants + shirt, but not glow)
 213         }
 214         else
 215                 skinframe->base   = GL_TextureForSkinLayer(skindata, width, height, va("%s_base", basename), palette_nofullbrights, precache); // no special colors
 216         // quake model skins don't have alpha
 217         skinframe->fog = NULL;
 218         return true;
 219 }
 220
 221 #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);
 222 #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);
 223 extern void R_Model_Alias_Draw(entity_render_t *ent);
 224 extern void R_Model_Alias_DrawFakeShadow(entity_render_t *ent);
 225 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 226 extern void R_Model_Alias_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor);
 227 void Mod_LoadAliasModel (model_t *mod, void *buffer)
 228 {
 229         int                                             i, j, version, numverts, totalposes, totalskins, skinwidth, skinheight, totalverts, groupframes, groupskins;
 230         mdl_t                                   *pinmodel;
 231         stvert_t                                *pinstverts;
 232         dtriangle_t                             *pintriangles;
 233         daliasskintype_t                *pinskintype;
 234         daliasskingroup_t               *pinskingroup;
 235         daliasskininterval_t    *pinskinintervals;
 236         daliasframetype_t               *pinframetype;
 237         daliasgroup_t                   *pinframegroup;
 238         float                                   scales, scalet, scale[3], translate[3], interval;
 239         qbyte                                   *datapointer, *startframes, *startskins;
 240         char                                    name[MAX_QPATH];
 241         skinframe_t                             tempskinframe;
 242         animscene_t                             *tempskinscenes;
 243         skinframe_t                             *tempskinframes;
 244         modelyawradius = 0;
 245         modelradius = 0;
 246
 247         datapointer = buffer;
 248         pinmodel = (mdl_t *)datapointer;
 249         datapointer += sizeof(mdl_t);
 250
 251         version = LittleLong (pinmodel->version);
 252         if (version != ALIAS_VERSION)
 253                 Host_Error ("%s has wrong version number (%i should be %i)",
 254                                  loadmodel->name, version, ALIAS_VERSION);
 255
 256         loadmodel->type = mod_alias;
 257         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 258         loadmodel->DrawSky = NULL;
 259         loadmodel->Draw = R_Model_Alias_Draw;
 260         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 261         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 262         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 263
 264         loadmodel->numskins = LittleLong(pinmodel->numskins);
 265         BOUNDI(loadmodel->numskins,0,256);
 266         skinwidth = LittleLong (pinmodel->skinwidth);
 267         BOUNDI(skinwidth,0,4096);
 268         skinheight = LittleLong (pinmodel->skinheight);
 269         BOUNDI(skinheight,0,4096);
 270         loadmodel->numverts = numverts = LittleLong(pinmodel->numverts);
 271         BOUNDI(loadmodel->numverts,0,MAXALIASVERTS);
 272         loadmodel->numtris = LittleLong(pinmodel->numtris);
 273         BOUNDI(loadmodel->numtris,0,MAXALIASTRIS);
 274         loadmodel->numframes = LittleLong(pinmodel->numframes);
 275         BOUNDI(loadmodel->numframes,0,65536);
 276         loadmodel->synctype = LittleLong (pinmodel->synctype);
 277         BOUNDI(loadmodel->synctype,0,2);
 278         loadmodel->flags = LittleLong (pinmodel->flags);
 279
 280         for (i = 0;i < 3;i++)
 281         {
 282                 scale[i] = LittleFloat (pinmodel->scale[i]);
 283                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 284         }
 285
 286         startskins = datapointer;
 287         totalskins = 0;
 288         for (i = 0;i < loadmodel->numskins;i++)
 289         {
 290                 pinskintype = (daliasskintype_t *)datapointer;
 291                 datapointer += sizeof(daliasskintype_t);
 292                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 293                         groupskins = 1;
 294                 else
 295                 {
 296                         pinskingroup = (daliasskingroup_t *)datapointer;
 297                         datapointer += sizeof(daliasskingroup_t);
 298                         groupskins = LittleLong(pinskingroup->numskins);
 299                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 300                 }
 301
 302                 for (j = 0;j < groupskins;j++)
 303                 {
 304                         datapointer += skinwidth * skinheight;
 305                         totalskins++;
 306                 }
 307         }
 308
 309         pinstverts = (stvert_t *)datapointer;
 310         datapointer += sizeof(stvert_t) * numverts;
 311
 312         pintriangles = (dtriangle_t *)datapointer;
 313         datapointer += sizeof(dtriangle_t) * loadmodel->numtris;
 314
 315         startframes = datapointer;
 316         totalposes = 0;
 317         for (i = 0;i < loadmodel->numframes;i++)
 318         {
 319                 pinframetype = (daliasframetype_t *)datapointer;
 320                 datapointer += sizeof(daliasframetype_t);
 321                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 322                         groupframes = 1;
 323                 else
 324                 {
 325                         pinframegroup = (daliasgroup_t *)datapointer;
 326                         datapointer += sizeof(daliasgroup_t);
 327                         groupframes = LittleLong(pinframegroup->numframes);
 328                         datapointer += sizeof(daliasinterval_t) * groupframes;
 329                 }
 330
 331                 for (j = 0;j < groupframes;j++)
 332                 {
 333                         datapointer += sizeof(daliasframe_t);
 334                         datapointer += sizeof(trivertx_t) * numverts;
 335                         totalposes++;
 336                 }
 337         }
 338
 339         // load the skins
 340         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 341         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, totalskins * sizeof(skinframe_t));
 342         totalskins = 0;
 343         datapointer = startskins;
 344         for (i = 0;i < loadmodel->numskins;i++)
 345         {
 346                 pinskintype = (daliasskintype_t *)datapointer;
 347                 datapointer += sizeof(daliasskintype_t);
 348
 349                 if (pinskintype->type == ALIAS_SKIN_SINGLE)
 350                 {
 351                         groupskins = 1;
 352                         interval = 0.1f;
 353                 }
 354                 else
 355                 {
 356                         pinskingroup = (daliasskingroup_t *)datapointer;
 357                         datapointer += sizeof(daliasskingroup_t);
 358
 359                         groupskins = LittleLong (pinskingroup->numskins);
 360
 361                         pinskinintervals = (daliasskininterval_t *)datapointer;
 362                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 363
 364                         interval = LittleFloat(pinskinintervals[0].interval);
 365                         if (interval < 0.01f)
 366                                 Host_Error("Mod_LoadAliasModel: invalid interval\n");
 367                 }
 368
 369                 sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 370                 loadmodel->skinscenes[i].firstframe = totalskins;
 371                 loadmodel->skinscenes[i].framecount = groupskins;
 372                 loadmodel->skinscenes[i].framerate = 1.0f / interval;
 373                 loadmodel->skinscenes[i].loop = true;
 374
 375                 for (j = 0;j < groupskins;j++)
 376                 {
 377                         if (groupskins > 1)
 378                                 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 379                         else
 380                                 sprintf (name, "%s_%i", loadmodel->name, i);
 381                         if (!Mod_LoadExternalSkin(name, loadmodel->skinframes + totalskins, i == 0))
 382                                 Mod_LoadInternalSkin(name, (qbyte *)datapointer, skinwidth, skinheight, loadmodel->skinframes + totalskins, i == 0);
 383                         datapointer += skinwidth * skinheight;
 384                         totalskins++;
 385                 }
 386         }
 387         // check for skins that don't exist in the model, but do exist as external images
 388         // (this was added because yummyluv kept pestering me about support for it)
 389         for (;;)
 390         {
 391                 sprintf (name, "%s_%i", loadmodel->name, loadmodel->numskins);
 392                 if (Mod_LoadExternalSkin(name, &tempskinframe, loadmodel->numskins == 0))
 393                 {
 394                         // expand the arrays to make room
 395                         tempskinscenes = loadmodel->skinscenes;
 396                         tempskinframes = loadmodel->skinframes;
 397                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 398                         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(skinframe_t));
 399                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 400                         memcpy(loadmodel->skinframes, tempskinframes, totalskins * sizeof(skinframe_t));
 401                         Mem_Free(tempskinscenes);
 402                         Mem_Free(tempskinframes);
 403                         // store the info about the new skin
 404                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 405                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 406                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 407                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 408                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 409                         loadmodel->skinframes[totalskins] = tempskinframe;
 410                         loadmodel->numskins++;
 411                         totalskins++;
 412                 }
 413                 else
 414                         break;
 415         }
 416
 417         // store texture coordinates into temporary array, they will be stored after usage is determined (triangle data)
 418         scales = 1.0 / skinwidth;
 419         scalet = 1.0 / skinheight;
 420         for (i = 0;i < numverts;i++)
 421         {
 422                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 423                 vertst[i][0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 424                 vertst[i][1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 425                 vertst[i+numverts][0] = vertst[i][0] + 0.5;
 426                 vertst[i+numverts][1] = vertst[i][1];
 427                 vertusage[i] = 0;
 428                 vertusage[i+numverts] = 0;
 429         }
 430
 431 // load triangle data
 432         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->numtris);
 433
 434         // count the vertices used
 435         for (i = 0;i < numverts*2;i++)
 436                 vertusage[i] = 0;
 437         for (i = 0;i < loadmodel->numtris;i++)
 438         {
 439                 temptris[i][0] = LittleLong(pintriangles[i].vertindex[0]);
 440                 temptris[i][1] = LittleLong(pintriangles[i].vertindex[1]);
 441                 temptris[i][2] = LittleLong(pintriangles[i].vertindex[2]);
 442                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 443                 {
 444                         if (vertonseam[temptris[i][0]]) temptris[i][0] += numverts;
 445                         if (vertonseam[temptris[i][1]]) temptris[i][1] += numverts;
 446                         if (vertonseam[temptris[i][2]]) temptris[i][2] += numverts;
 447                 }
 448                 vertusage[temptris[i][0]]++;
 449                 vertusage[temptris[i][1]]++;
 450                 vertusage[temptris[i][2]]++;
 451         }
 452         // build remapping table and compact array
 453         totalverts = 0;
 454         for (i = 0;i < numverts*2;i++)
 455         {
 456                 if (vertusage[i])
 457                 {
 458                         vertremap[i] = totalverts;
 459                         vertst[totalverts][0] = vertst[i][0];
 460                         vertst[totalverts][1] = vertst[i][1];
 461                         totalverts++;
 462                 }
 463                 else
 464                         vertremap[i] = -1; // not used at all
 465         }
 466         loadmodel->numverts = totalverts;
 467         // remap the triangle references
 468         for (i = 0;i < loadmodel->numtris;i++)
 469         {
 470                 loadmodel->mdlmd2data_indices[i*3+0] = vertremap[temptris[i][0]];
 471                 loadmodel->mdlmd2data_indices[i*3+1] = vertremap[temptris[i][1]];
 472                 loadmodel->mdlmd2data_indices[i*3+2] = vertremap[temptris[i][2]];
 473         }
 474         // store the texture coordinates
 475         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, sizeof(float[4]) * totalverts);
 476         for (i = 0;i < totalverts;i++)
 477         {
 478                 loadmodel->mdlmd2data_texcoords[i*4+0] = vertst[i][0];
 479                 loadmodel->mdlmd2data_texcoords[i*4+1] = vertst[i][1];
 480         }
 481
 482 // load the frames
 483         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 484         loadmodel->mdlmd2data_frames = Mem_Alloc(loadmodel->mempool, sizeof(md2frame_t) * totalposes);
 485         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, sizeof(aliasvertex_t) * totalposes * totalverts);
 486
 487         // LordHavoc: doing proper bbox for model
 488         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 489         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 490
 491         Mod_MDL_LoadFrames (startframes, numverts, scale, translate);
 492
 493         modelyawradius = sqrt(modelyawradius);
 494         modelradius = sqrt(modelradius);
 495         for (j = 0;j < 3;j++)
 496         {
 497                 loadmodel->normalmins[j] = aliasbboxmin[j];
 498                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 499                 loadmodel->rotatedmins[j] = -modelradius;
 500                 loadmodel->rotatedmaxs[j] = modelradius;
 501         }
 502         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 503         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 504         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 505         loadmodel->radius = modelradius;
 506         loadmodel->radius2 = modelradius * modelradius;
 507
 508         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 509         Mod_ValidateElements(loadmodel->mdlmd2data_indices, loadmodel->numtris, loadmodel->numverts, __FILE__, __LINE__);
 510         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 511 }
 512
 513 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, aliasvertex_t *out, int *vertremap)
 514 {
 515         int i;
 516         float dist;
 517         trivertx_t *in;
 518         vec3_t temp;
 519         for (i = 0;i < loadmodel->numverts;i++)
 520         {
 521                 in = v + vertremap[i];
 522                 temp[0] = in->v[0] * scale[0] + translate[0];
 523                 temp[1] = in->v[1] * scale[1] + translate[1];
 524                 temp[2] = in->v[2] * scale[2] + translate[2];
 525                 // update bounding box
 526                 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
 527                 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
 528                 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
 529                 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
 530                 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
 531                 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
 532                 dist = temp[0]*temp[0]+temp[1]*temp[1];
 533                 if (modelyawradius < dist)
 534                         modelyawradius = dist;
 535                 dist += temp[2]*temp[2];
 536                 if (modelradius < dist)
 537                         modelradius = dist;
 538                 VectorScale(temp, 16.0f, temp);
 539                 temp[0] = bound(-32768, temp[0], 32767);
 540                 temp[1] = bound(-32768, temp[1], 32767);
 541                 temp[2] = bound(-32768, temp[2], 32767);
 542                 VectorCopy(temp, out[i].origin);
 543         }
 544 }
 545
 546 void Mod_LoadQ2AliasModel (model_t *mod, void *buffer)
 547 {
 548         int *vertremap;
 549         md2_t *pinmodel;
 550         qbyte *base;
 551         int version, end;
 552         int i, j, k, hashindex, num, numxyz, numst, xyz, st;
 553         float *stverts, s, t;
 554         struct md2verthash_s
 555         {
 556                 struct md2verthash_s *next;
 557                 int xyz;
 558                 float st[2];
 559         }
 560         *hash, **md2verthash, *md2verthashdata;
 561         qbyte *datapointer;
 562         md2frame_t *pinframe;
 563         char *inskin;
 564         md2triangle_t *intri;
 565         unsigned short *inst;
 566         int skinwidth, skinheight;
 567         float *vertexbuffer, *svectorsbuffer, *tvectorsbuffer, *normalsbuffer;
 568
 569         pinmodel = buffer;
 570         base = buffer;
 571
 572         version = LittleLong (pinmodel->version);
 573         if (version != MD2ALIAS_VERSION)
 574                 Host_Error ("%s has wrong version number (%i should be %i)",
 575                         loadmodel->name, version, MD2ALIAS_VERSION);
 576
 577         loadmodel->type = mod_alias;
 578         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 579         loadmodel->DrawSky = NULL;
 580         loadmodel->Draw = R_Model_Alias_Draw;
 581         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 582         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 583         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 584
 585         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > MD2MAX_TRIANGLES)
 586                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 587         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > MD2MAX_VERTS)
 588                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 589         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > MD2MAX_FRAMES)
 590                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 591         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > MAX_SKINS)
 592                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 593
 594         end = LittleLong(pinmodel->ofs_end);
 595         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
 596                 Host_Error ("%s is not a valid model", loadmodel->name);
 597         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
 598                 Host_Error ("%s is not a valid model", loadmodel->name);
 599         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
 600                 Host_Error ("%s is not a valid model", loadmodel->name);
 601         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
 602                 Host_Error ("%s is not a valid model", loadmodel->name);
 603         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
 604                 Host_Error ("%s is not a valid model", loadmodel->name);
 605
 606         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 607         numxyz = LittleLong(pinmodel->num_xyz);
 608         numst = LittleLong(pinmodel->num_st);
 609         loadmodel->numtris = LittleLong(pinmodel->num_tris);
 610         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 611
 612         loadmodel->flags = 0; // there are no MD2 flags
 613         loadmodel->synctype = ST_RAND;
 614
 615         // load the skins
 616         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 617         if (loadmodel->numskins)
 618         {
 619                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins + sizeof(skinframe_t) * loadmodel->numskins);
 620                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + loadmodel->numskins);
 621                 for (i = 0;i < loadmodel->numskins;i++)
 622                 {
 623                         loadmodel->skinscenes[i].firstframe = i;
 624                         loadmodel->skinscenes[i].framecount = 1;
 625                         loadmodel->skinscenes[i].loop = true;
 626                         loadmodel->skinscenes[i].framerate = 10;
 627                         loadmodel->skinframes[i].base = loadtextureimagewithmaskandnmap (loadmodel->texturepool, inskin, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0), 1);
 628                         loadmodel->skinframes[i].fog = image_masktex;
 629                         loadmodel->skinframes[i].nmap = image_nmaptex;
 630                         loadmodel->skinframes[i].gloss = NULL;
 631                         loadmodel->skinframes[i].pants = NULL;
 632                         loadmodel->skinframes[i].shirt = NULL;
 633                         loadmodel->skinframes[i].glow = NULL;
 634                         loadmodel->skinframes[i].merged = NULL;
 635                         inskin += MD2MAX_SKINNAME;
 636                 }
 637         }
 638
 639         // load the triangles and stvert data
 640         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 641         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 642         skinwidth = LittleLong(pinmodel->skinwidth);
 643         skinheight = LittleLong(pinmodel->skinheight);
 644
 645         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 646         s = 1.0f / skinwidth;
 647         t = 1.0f / skinheight;
 648         for (i = 0;i < numst;i++)
 649         {
 650                 j = (unsigned short) LittleShort(inst[i*2+0]);
 651                 k = (unsigned short) LittleShort(inst[i*2+1]);
 652                 if (j >= skinwidth || k >= skinheight)
 653                 {
 654                         Mem_Free(stverts);
 655                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
 656                 }
 657                 stverts[i*2+0] = j * s;
 658                 stverts[i*2+1] = k * t;
 659         }
 660
 661         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 662         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->numtris * 3 * sizeof(*hash));
 663         // swap the triangle list
 664         num = 0;
 665         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 666         for (i = 0;i < loadmodel->numtris;i++)
 667         {
 668                 for (j = 0;j < 3;j++)
 669                 {
 670                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 671                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 672                         if (xyz >= numxyz || st >= numst)
 673                         {
 674                                 Mem_Free(md2verthash);
 675                                 Mem_Free(md2verthashdata);
 676                                 Mem_Free(stverts);
 677                                 if (xyz >= numxyz)
 678                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
 679                                 if (st >= numst)
 680                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
 681                         }
 682                         s = stverts[st*2+0];
 683                         t = stverts[st*2+1];
 684                         hashindex = (xyz * 17 + st) & 255;
 685                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 686                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 687                                         break;
 688                         if (hash == NULL)
 689                         {
 690                                 hash = md2verthashdata + num++;
 691                                 hash->xyz = xyz;
 692                                 hash->st[0] = s;
 693                                 hash->st[1] = t;
 694                                 hash->next = md2verthash[hashindex];
 695                                 md2verthash[hashindex] = hash;
 696                         }
 697                         loadmodel->mdlmd2data_indices[i*3+j] = (hash - md2verthashdata);
 698                 }
 699         }
 700
 701         Mem_Free(stverts);
 702
 703         loadmodel->numverts = num;
 704         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 705         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, num * sizeof(float[4]));
 706         for (i = 0;i < num;i++)
 707         {
 708                 hash = md2verthashdata + i;
 709                 vertremap[i] = hash->xyz;
 710                 loadmodel->mdlmd2data_texcoords[i*4+0] = hash->st[0];
 711                 loadmodel->mdlmd2data_texcoords[i*4+1] = hash->st[1];
 712         }
 713
 714         Mem_Free(md2verthash);
 715         Mem_Free(md2verthashdata);
 716
 717         // load frames
 718         // LordHavoc: doing proper bbox for model
 719         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 720         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 721         modelyawradius = 0;
 722         modelradius = 0;
 723
 724         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 725         // load the frames
 726         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 727         loadmodel->mdlmd2data_frames = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(md2frame_t));
 728         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, loadmodel->numverts * loadmodel->numframes * sizeof(trivertx_t));
 729
 730         vertexbuffer = Mem_Alloc(tempmempool, loadmodel->numverts * sizeof(float[4]) * 4);
 731         svectorsbuffer = vertexbuffer + loadmodel->numverts * 4;
 732         tvectorsbuffer = svectorsbuffer + loadmodel->numverts * 4;
 733         normalsbuffer = tvectorsbuffer + loadmodel->numverts * 4;
 734         for (i = 0;i < loadmodel->numframes;i++)
 735         {
 736                 pinframe = (md2frame_t *)datapointer;
 737                 datapointer += sizeof(md2frame_t);
 738                 strcpy(loadmodel->mdlmd2data_frames[i].name, pinframe->name);
 739                 for (j = 0;j < 3;j++)
 740                 {
 741                         loadmodel->mdlmd2data_frames[i].scale[j] = LittleFloat(pinframe->scale[j]);
 742                         loadmodel->mdlmd2data_frames[i].translate[j] = LittleFloat(pinframe->translate[j]);
 743                 }
 744                 Mod_MD2_ConvertVerts(loadmodel->mdlmd2data_frames[i].scale, loadmodel->mdlmd2data_frames[i].translate, (void *)datapointer, loadmodel->mdlmd2data_pose + i * loadmodel->numverts, vertremap);
 745                 Mod_BuildAliasVertexTextureVectors(loadmodel->numtris, loadmodel->mdlmd2data_indices, loadmodel->numverts, loadmodel->mdlmd2data_pose + i * loadmodel->numverts, loadmodel->mdlmd2data_texcoords, vertexbuffer, svectorsbuffer, tvectorsbuffer, normalsbuffer);
 746                 datapointer += numxyz * sizeof(trivertx_t);
 747
 748                 strcpy(loadmodel->animscenes[i].name, loadmodel->mdlmd2data_frames[i].name);
 749                 loadmodel->animscenes[i].firstframe = i;
 750                 loadmodel->animscenes[i].framecount = 1;
 751                 loadmodel->animscenes[i].framerate = 10;
 752                 loadmodel->animscenes[i].loop = true;
 753         }
 754         Mem_Free(vertexbuffer);
 755
 756         Mem_Free(vertremap);
 757
 758         // LordHavoc: model bbox
 759         modelyawradius = sqrt(modelyawradius);
 760         modelradius = sqrt(modelradius);
 761         for (j = 0;j < 3;j++)
 762         {
 763                 loadmodel->normalmins[j] = aliasbboxmin[j];
 764                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 765                 loadmodel->rotatedmins[j] = -modelradius;
 766                 loadmodel->rotatedmaxs[j] = modelradius;
 767         }
 768         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 769         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 770         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 771         loadmodel->radius = modelradius;
 772         loadmodel->radius2 = modelradius * modelradius;
 773
 774         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 775         Mod_ValidateElements(loadmodel->mdlmd2data_indices, loadmodel->numtris, loadmodel->numverts, __FILE__, __LINE__);
 776         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 777 }
 778
 779 extern void R_Model_Zymotic_DrawSky(entity_render_t *ent);
 780 extern void R_Model_Zymotic_Draw(entity_render_t *ent);
 781 extern void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent);
 782 extern void R_Model_Zymotic_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 783 extern void R_Model_Zymotic_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor);
 784 void Mod_LoadZymoticModel(model_t *mod, void *buffer)
 785 {
 786         zymtype1header_t *pinmodel, *pheader;
 787         qbyte *pbase;
 788
 789         pinmodel = (void *)buffer;
 790         pbase = buffer;
 791         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
 792                 Host_Error ("Mod_LoadZymoticModel: %s is not a zymotic model\n");
 793         if (BigLong(pinmodel->type) != 1)
 794                 Host_Error ("Mod_LoadZymoticModel: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
 795
 796         loadmodel->type = mod_alias;
 797         loadmodel->aliastype = ALIASTYPE_ZYM;
 798         loadmodel->DrawSky = NULL;
 799         loadmodel->Draw = R_Model_Zymotic_Draw;
 800         loadmodel->DrawFakeShadow = NULL;//R_Model_Zymotic_DrawFakeShadow;
 801         loadmodel->DrawShadowVolume = NULL;//R_Model_Zymotic_DrawShadowVolume;
 802         loadmodel->DrawLight = NULL;//R_Model_Zymotic_DrawLight;
 803
 804         // byteswap header
 805         pheader = pinmodel;
 806         pheader->type = BigLong(pinmodel->type);
 807         pheader->filesize = BigLong(pinmodel->filesize);
 808         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
 809         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
 810         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
 811         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
 812         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
 813         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
 814         pheader->radius = BigFloat(pinmodel->radius);
 815         pheader->numverts = loadmodel->zymnum_verts = BigLong(pinmodel->numverts);
 816         pheader->numtris = loadmodel->zymnum_tris = BigLong(pinmodel->numtris);
 817         pheader->numshaders = loadmodel->zymnum_shaders = BigLong(pinmodel->numshaders);
 818         pheader->numbones = loadmodel->zymnum_bones = BigLong(pinmodel->numbones);
 819         pheader->numscenes = loadmodel->zymnum_scenes = BigLong(pinmodel->numscenes);
 820         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
 821         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
 822         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
 823         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
 824         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
 825         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
 826         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
 827         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
 828         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
 829         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
 830         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
 831         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
 832         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
 833         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
 834         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
 835         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
 836         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
 837         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
 838
 839         loadmodel->flags = 0; // there are no flags
 840         loadmodel->numframes = pheader->numscenes;
 841         loadmodel->synctype = ST_SYNC;
 842         loadmodel->numtris = pheader->numtris;
 843         loadmodel->numverts = 0;
 844
 845         {
 846                 unsigned int i;
 847                 float modelradius, corner[2];
 848                 // model bbox
 849                 modelradius = pheader->radius;
 850                 for (i = 0;i < 3;i++)
 851                 {
 852                         loadmodel->normalmins[i] = pheader->mins[i];
 853                         loadmodel->normalmaxs[i] = pheader->maxs[i];
 854                         loadmodel->rotatedmins[i] = -modelradius;
 855                         loadmodel->rotatedmaxs[i] = modelradius;
 856                 }
 857                 corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
 858                 corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
 859                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
 860                 if (loadmodel->yawmaxs[0] > modelradius)
 861                         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
 862                 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
 863                 loadmodel->yawmins[2] = loadmodel->normalmins[2];
 864                 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 865                 loadmodel->radius = modelradius;
 866                 loadmodel->radius2 = modelradius * modelradius;
 867         }
 868
 869         {
 870                 // FIXME: add shaders, and make them switchable shader sets and...
 871                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) + sizeof(skinframe_t));
 872                 loadmodel->skinscenes[0].firstframe = 0;
 873                 loadmodel->skinscenes[0].framecount = 1;
 874                 loadmodel->skinscenes[0].loop = true;
 875                 loadmodel->skinscenes[0].framerate = 10;
 876                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + 1);
 877                 loadmodel->skinframes->base = NULL;
 878                 loadmodel->skinframes->fog = NULL;
 879                 loadmodel->skinframes->pants = NULL;
 880                 loadmodel->skinframes->shirt = NULL;
 881                 loadmodel->skinframes->glow = NULL;
 882                 loadmodel->skinframes->merged = NULL;
 883                 loadmodel->numskins = 1;
 884         }
 885
 886         // go through the lumps, swapping things
 887
 888         {
 889                 int i, numposes;
 890                 zymscene_t *scene;
 891         //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
 892                 loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 893                 scene = (void *) (pheader->lump_scenes.start + pbase);
 894                 numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
 895                 for (i = 0;i < pheader->numscenes;i++)
 896                 {
 897                         memcpy(loadmodel->animscenes[i].name, scene->name, 32);
 898                         loadmodel->animscenes[i].firstframe = BigLong(scene->start);
 899                         loadmodel->animscenes[i].framecount = BigLong(scene->length);
 900                         loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
 901                         loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
 902                         if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
 903                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
 904                         if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
 905                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
 906                         if (loadmodel->animscenes[i].framerate < 0)
 907                                 Host_Error("Mod_LoadZymoticModel: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
 908                         scene++;
 909                 }
 910         }
 911
 912         {
 913                 int i;
 914                 float *poses;
 915         //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
 916                 loadmodel->zymdata_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
 917                 poses = (void *) (pheader->lump_poses.start + pbase);
 918                 for (i = 0;i < pheader->lump_poses.length / 4;i++)
 919                         loadmodel->zymdata_poses[i] = BigFloat(poses[i]);
 920         }
 921
 922         {
 923                 int i;
 924                 zymbone_t *bone;
 925         //      zymlump_t lump_bones; // zymbone_t bone[numbones];
 926                 loadmodel->zymdata_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(zymbone_t));
 927                 bone = (void *) (pheader->lump_bones.start + pbase);
 928                 for (i = 0;i < pheader->numbones;i++)
 929                 {
 930                         memcpy(loadmodel->zymdata_bones[i].name, bone[i].name, sizeof(bone[i].name));
 931                         loadmodel->zymdata_bones[i].flags = BigLong(bone[i].flags);
 932                         loadmodel->zymdata_bones[i].parent = BigLong(bone[i].parent);
 933                         if (loadmodel->zymdata_bones[i].parent >= i)
 934                                 Host_Error("Mod_LoadZymoticModel: bone[%i].parent >= %i in %s\n", i, i, loadmodel->name);
 935                 }
 936         }
 937
 938         {
 939                 int i, *bonecount;
 940         //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
 941                 loadmodel->zymdata_vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
 942                 bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
 943                 for (i = 0;i < pheader->numverts;i++)
 944                 {
 945                         loadmodel->zymdata_vertbonecounts[i] = BigLong(bonecount[i]);
 946                         if (loadmodel->zymdata_vertbonecounts[i] < 1)
 947                                 Host_Error("Mod_LoadZymoticModel: bone vertex count < 1 in %s\n", loadmodel->name);
 948                 }
 949         }
 950
 951         {
 952                 int i;
 953                 zymvertex_t *vertdata;
 954         //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
 955                 loadmodel->zymdata_verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
 956                 vertdata = (void *) (pheader->lump_verts.start + pbase);
 957                 for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
 958                 {
 959                         loadmodel->zymdata_verts[i].bonenum = BigLong(vertdata[i].bonenum);
 960                         loadmodel->zymdata_verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
 961                         loadmodel->zymdata_verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
 962                         loadmodel->zymdata_verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
 963                 }
 964         }
 965
 966         {
 967                 int i;
 968                 float *intexcoord, *outtexcoord;
 969         //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
 970                 loadmodel->zymdata_texcoords = outtexcoord = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[4]));
 971                 intexcoord = (void *) (pheader->lump_texcoords.start + pbase);
 972                 for (i = 0;i < pheader->numverts;i++)
 973                 {
 974                         outtexcoord[i*4+0] = BigFloat(intexcoord[i*2+0]);
 975                         // flip T coordinate for OpenGL
 976                         outtexcoord[i*4+1] = 1 - BigFloat(intexcoord[i*2+1]);
 977                 }
 978         }
 979
 980         {
 981                 int i, count, *renderlist, *renderlistend, *outrenderlist;
 982         //      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)
 983                 loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, pheader->lump_render.length);
 984                 // byteswap, validate, and swap winding order of tris
 985                 count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
 986                 if (pheader->lump_render.length != count)
 987                         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);
 988                 outrenderlist = loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, count);
 989                 renderlist = (void *) (pheader->lump_render.start + pbase);
 990                 renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
 991                 for (i = 0;i < pheader->numshaders;i++)
 992                 {
 993                         if (renderlist >= renderlistend)
 994                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
 995                         count = BigLong(*renderlist);renderlist++;
 996                         if (renderlist + count * 3 > renderlistend)
 997                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
 998                         *outrenderlist++ = count;
 999                         while (count--)
1000                         {
1001                                 outrenderlist[2] = BigLong(renderlist[0]);
1002                                 outrenderlist[1] = BigLong(renderlist[1]);
1003                                 outrenderlist[0] = BigLong(renderlist[2]);
1004                                 if ((unsigned int)outrenderlist[0] >= (unsigned int)pheader->numverts
1005                                  || (unsigned int)outrenderlist[1] >= (unsigned int)pheader->numverts
1006                                  || (unsigned int)outrenderlist[2] >= (unsigned int)pheader->numverts)
1007                                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
1008                                 renderlist += 3;
1009                                 outrenderlist += 3;
1010                         }
1011                 }
1012         }
1013
1014         {
1015                 int i;
1016                 char *shadername;
1017         //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1018                 loadmodel->zymdata_textures = Mem_Alloc(loadmodel->mempool, pheader->numshaders * sizeof(rtexture_t *));
1019                 shadername = (void *) (pheader->lump_shaders.start + pbase);
1020                 for (i = 0;i < pheader->numshaders;i++)
1021                         loadmodel->zymdata_textures[i] = loadtextureimage(loadmodel->texturepool, shadername + i * 32, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0));
1022         }
1023
1024         {
1025         //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1026                 loadmodel->zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1027                 memcpy(loadmodel->zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1028         }
1029 }