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 #include "r_shadow.h"
  24
  25 static cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0"};
  26
  27 void Mod_AliasInit (void)
  28 {
  29         Cvar_RegisterVariable(&r_mipskins);
  30 }
  31
  32 static void Mod_CalcAliasModelBBoxes (void)
  33 {
  34         int vnum, meshnum;
  35         float dist, yawradius, radius;
  36         aliasmesh_t *mesh;
  37         float *v;
  38         VectorClear(loadmodel->normalmins);
  39         VectorClear(loadmodel->normalmaxs);
  40         yawradius = 0;
  41         radius = 0;
  42         for (meshnum = 0, mesh = loadmodel->aliasdata_meshes;meshnum < loadmodel->aliasnum_meshes;meshnum++, mesh++)
  43         {
  44                 for (vnum = 0, v = mesh->data_aliasvertex3f;vnum < mesh->num_vertices * mesh->num_frames;vnum++, v += 3)
  45                 {
  46                         if (loadmodel->normalmins[0] > v[0]) loadmodel->normalmins[0] = v[0];
  47                         if (loadmodel->normalmins[1] > v[1]) loadmodel->normalmins[1] = v[1];
  48                         if (loadmodel->normalmins[2] > v[2]) loadmodel->normalmins[2] = v[2];
  49                         if (loadmodel->normalmaxs[0] < v[0]) loadmodel->normalmaxs[0] = v[0];
  50                         if (loadmodel->normalmaxs[1] < v[1]) loadmodel->normalmaxs[1] = v[1];
  51                         if (loadmodel->normalmaxs[2] < v[2]) loadmodel->normalmaxs[2] = v[2];
  52                         dist = v[0] * v[0] + v[1] * v[1];
  53                         if (yawradius < dist)
  54                                 yawradius = dist;
  55                         dist += v[2] * v[2];
  56                         if (radius < dist)
  57                                 radius = dist;
  58                 }
  59         }
  60         radius = sqrt(radius);
  61         yawradius = sqrt(yawradius);
  62         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -yawradius;
  63         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = yawradius;
  64         loadmodel->yawmins[2] = loadmodel->normalmins[2];
  65         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
  66         loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -radius;
  67         loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = radius;
  68         loadmodel->radius = radius;
  69         loadmodel->radius2 = radius * radius;
  70 }
  71
  72 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int *vertremap)
  73 {
  74         int i, j;
  75         vec3_t temp;
  76         for (i = 0;i < inverts;i++)
  77         {
  78                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
  79                         continue;
  80                 temp[0] = v[i].v[0] * scale[0] + translate[0];
  81                 temp[1] = v[i].v[1] * scale[1] + translate[1];
  82                 temp[2] = v[i].v[2] * scale[2] + translate[2];
  83                 j = vertremap[i]; // not onseam
  84                 if (j >= 0)
  85                         VectorCopy(temp, out3f + j * 3);
  86                 j = vertremap[i+inverts]; // onseam
  87                 if (j >= 0)
  88                         VectorCopy(temp, out3f + j * 3);
  89         }
  90 }
  91
  92 static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, vec3_t scale, vec3_t translate, int *vertremap)
  93 {
  94         int i, f, pose, groupframes;
  95         float interval;
  96         daliasframetype_t *pframetype;
  97         daliasframe_t *pinframe;
  98         daliasgroup_t *group;
  99         daliasinterval_t *intervals;
 100         animscene_t *scene;
 101         pose = 0;
 102         scene = loadmodel->animscenes;
 103         for (f = 0;f < loadmodel->numframes;f++)
 104         {
 105                 pframetype = (daliasframetype_t *)datapointer;
 106                 datapointer += sizeof(daliasframetype_t);
 107                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 108                 {
 109                         // a single frame is still treated as a group
 110                         interval = 0.1f;
 111                         groupframes = 1;
 112                 }
 113                 else
 114                 {
 115                         // read group header
 116                         group = (daliasgroup_t *)datapointer;
 117                         datapointer += sizeof(daliasgroup_t);
 118                         groupframes = LittleLong (group->numframes);
 119
 120                         // intervals (time per frame)
 121                         intervals = (daliasinterval_t *)datapointer;
 122                         datapointer += sizeof(daliasinterval_t) * groupframes;
 123
 124                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 125                         if (interval < 0.01f)
 126                                 Host_Error("Mod_MDL_LoadFrames: invalid interval");
 127                 }
 128
 129                 // get scene name from first frame
 130                 pinframe = (daliasframe_t *)datapointer;
 131
 132                 strcpy(scene->name, pinframe->name);
 133                 scene->firstframe = pose;
 134                 scene->framecount = groupframes;
 135                 scene->framerate = 1.0f / interval;
 136                 scene->loop = true;
 137                 scene++;
 138
 139                 // read frames
 140                 for (i = 0;i < groupframes;i++)
 141                 {
 142                         pinframe = (daliasframe_t *)datapointer;
 143                         datapointer += sizeof(daliasframe_t);
 144                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->aliasdata_meshes->data_aliasvertex3f + pose * loadmodel->aliasdata_meshes->num_vertices * 3, vertremap);
 145                         Mod_BuildTextureVectorsAndNormals(loadmodel->aliasdata_meshes->num_vertices, loadmodel->aliasdata_meshes->num_triangles, loadmodel->aliasdata_meshes->data_aliasvertex3f + pose * loadmodel->aliasdata_meshes->num_vertices * 3, loadmodel->aliasdata_meshes->data_texcoord2f, loadmodel->aliasdata_meshes->data_element3i, loadmodel->aliasdata_meshes->data_aliassvector3f + pose * loadmodel->aliasdata_meshes->num_vertices * 3, loadmodel->aliasdata_meshes->data_aliastvector3f + pose * loadmodel->aliasdata_meshes->num_vertices * 3, loadmodel->aliasdata_meshes->data_aliasnormal3f + pose * loadmodel->aliasdata_meshes->num_vertices * 3);
 146                         datapointer += sizeof(trivertx_t) * inverts;
 147                         pose++;
 148                 }
 149         }
 150 }
 151
 152 aliaslayer_t mod_alias_layersbuffer[16]; // 7 currently used
 153 void Mod_BuildAliasSkinFromSkinFrame(aliasskin_t *skin, skinframe_t *skinframe)
 154 {
 155         aliaslayer_t *layer;
 156
 157         memset(&mod_alias_layersbuffer, 0, sizeof(mod_alias_layersbuffer));
 158         layer = mod_alias_layersbuffer;
 159         layer->flags = ALIASLAYER_SPECULAR;
 160         layer->texture = skinframe->gloss;
 161         layer->nmap = skinframe->nmap;
 162         layer++;
 163         if (skinframe->merged != NULL)
 164         {
 165                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_COLORMAPPED;
 166                 layer->texture = skinframe->merged;
 167                 layer->nmap = skinframe->nmap;
 168                 layer++;
 169         }
 170         if (skinframe->base != NULL)
 171         {
 172                 layer->flags = ALIASLAYER_DIFFUSE;
 173                 if (skinframe->merged != NULL)
 174                         layer->flags |= ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED;
 175                 layer->texture = skinframe->base;
 176                 layer->nmap = skinframe->nmap;
 177                 layer++;
 178         }
 179         if (skinframe->pants != NULL)
 180         {
 181                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_COLORMAP_PANTS;
 182                 layer->texture = skinframe->pants;
 183                 layer->nmap = skinframe->nmap;
 184                 layer++;
 185         }
 186         if (skinframe->shirt != NULL)
 187         {
 188                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_COLORMAP_SHIRT;
 189                 layer->texture = skinframe->shirt;
 190                 layer->nmap = skinframe->nmap;
 191                 layer++;
 192         }
 193
 194         if (skinframe->glow != NULL)
 195         {
 196                 layer->flags = 0;
 197                 layer->texture = skinframe->glow;
 198                 layer++;
 199                 layer->flags = ALIASLAYER_FOG;
 200                 layer->texture = skinframe->fog;
 201                 layer++;
 202         }
 203         else
 204         {
 205                 layer->flags = ALIASLAYER_FOG | ALIASLAYER_FORCEDRAW_IF_FIRSTPASS;
 206                 layer->texture = skinframe->fog;
 207                 layer++;
 208         }
 209
 210         skin->flags = 0;
 211         // fog texture only exists if some pixels are transparent...
 212         if (skinframe->fog != NULL)
 213                 skin->flags |= ALIASSKIN_TRANSPARENT;
 214
 215         skin->num_layers = layer - mod_alias_layersbuffer;
 216         skin->data_layers = Mem_Alloc(loadmodel->mempool, skin->num_layers * sizeof(aliaslayer_t));
 217         memcpy(skin->data_layers, mod_alias_layersbuffer, skin->num_layers * sizeof(aliaslayer_t));
 218 }
 219
 220 #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);
 221 #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);
 222 extern void R_Model_Alias_Draw(entity_render_t *ent);
 223 extern void R_Model_Alias_DrawFakeShadow(entity_render_t *ent);
 224 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 225 extern void R_Model_Alias_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz);
 226 void Mod_LoadQ1AliasModel (model_t *mod, void *buffer)
 227 {
 228         int i, j, version, totalskins, skinwidth, skinheight, groupframes, groupskins, numverts;
 229         float scales, scalet, scale[3], translate[3], interval;
 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         qbyte *datapointer, *startframes, *startskins;
 239         char name[MAX_QPATH];
 240         skinframe_t tempskinframe;
 241         animscene_t *tempskinscenes;
 242         skinframe_t *tempskinframes;
 243         float *vertst;
 244         int *vertonseam, *vertremap;
 245
 246         datapointer = buffer;
 247         pinmodel = (mdl_t *)datapointer;
 248         datapointer += sizeof(mdl_t);
 249
 250         version = LittleLong (pinmodel->version);
 251         if (version != ALIAS_VERSION)
 252                 Host_Error ("%s has wrong version number (%i should be %i)",
 253                                  loadmodel->name, version, ALIAS_VERSION);
 254
 255         loadmodel->type = mod_alias;
 256         loadmodel->aliastype = ALIASTYPE_ALIAS;
 257         loadmodel->DrawSky = NULL;
 258         loadmodel->Draw = R_Model_Alias_Draw;
 259         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 260         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 261         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 262
 263         loadmodel->aliasnum_meshes = 1;
 264         loadmodel->aliasdata_meshes = Mem_Alloc(loadmodel->mempool, sizeof(aliasmesh_t));
 265
 266         loadmodel->numskins = LittleLong(pinmodel->numskins);
 267         BOUNDI(loadmodel->numskins,0,256);
 268         skinwidth = LittleLong (pinmodel->skinwidth);
 269         BOUNDI(skinwidth,0,4096);
 270         skinheight = LittleLong (pinmodel->skinheight);
 271         BOUNDI(skinheight,0,4096);
 272         numverts = LittleLong(pinmodel->numverts);
 273         BOUNDI(numverts,0,65536);
 274         loadmodel->aliasdata_meshes->num_triangles = LittleLong(pinmodel->numtris);
 275         BOUNDI(loadmodel->aliasdata_meshes->num_triangles,0,65536 / 3); // max elements limit, rather than max triangles limit
 276         loadmodel->numframes = LittleLong(pinmodel->numframes);
 277         BOUNDI(loadmodel->numframes,0,65536);
 278         loadmodel->synctype = LittleLong (pinmodel->synctype);
 279         BOUNDI(loadmodel->synctype,0,2);
 280         loadmodel->flags = LittleLong (pinmodel->flags);
 281
 282         for (i = 0;i < 3;i++)
 283         {
 284                 scale[i] = LittleFloat (pinmodel->scale[i]);
 285                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 286         }
 287
 288         startskins = datapointer;
 289         totalskins = 0;
 290         for (i = 0;i < loadmodel->numskins;i++)
 291         {
 292                 pinskintype = (daliasskintype_t *)datapointer;
 293                 datapointer += sizeof(daliasskintype_t);
 294                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 295                         groupskins = 1;
 296                 else
 297                 {
 298                         pinskingroup = (daliasskingroup_t *)datapointer;
 299                         datapointer += sizeof(daliasskingroup_t);
 300                         groupskins = LittleLong(pinskingroup->numskins);
 301                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 302                 }
 303
 304                 for (j = 0;j < groupskins;j++)
 305                 {
 306                         datapointer += skinwidth * skinheight;
 307                         totalskins++;
 308                 }
 309         }
 310
 311         pinstverts = (stvert_t *)datapointer;
 312         datapointer += sizeof(stvert_t) * numverts;
 313
 314         pintriangles = (dtriangle_t *)datapointer;
 315         datapointer += sizeof(dtriangle_t) * loadmodel->aliasdata_meshes->num_triangles;
 316
 317         startframes = datapointer;
 318         loadmodel->aliasdata_meshes->num_frames = 0;
 319         for (i = 0;i < loadmodel->numframes;i++)
 320         {
 321                 pinframetype = (daliasframetype_t *)datapointer;
 322                 datapointer += sizeof(daliasframetype_t);
 323                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 324                         groupframes = 1;
 325                 else
 326                 {
 327                         pinframegroup = (daliasgroup_t *)datapointer;
 328                         datapointer += sizeof(daliasgroup_t);
 329                         groupframes = LittleLong(pinframegroup->numframes);
 330                         datapointer += sizeof(daliasinterval_t) * groupframes;
 331                 }
 332
 333                 for (j = 0;j < groupframes;j++)
 334                 {
 335                         datapointer += sizeof(daliasframe_t);
 336                         datapointer += sizeof(trivertx_t) * numverts;
 337                         loadmodel->aliasdata_meshes->num_frames++;
 338                 }
 339         }
 340
 341         // load the skins
 342         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 343         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, totalskins * sizeof(skinframe_t));
 344         totalskins = 0;
 345         datapointer = startskins;
 346         for (i = 0;i < loadmodel->numskins;i++)
 347         {
 348                 pinskintype = (daliasskintype_t *)datapointer;
 349                 datapointer += sizeof(daliasskintype_t);
 350
 351                 if (pinskintype->type == ALIAS_SKIN_SINGLE)
 352                 {
 353                         groupskins = 1;
 354                         interval = 0.1f;
 355                 }
 356                 else
 357                 {
 358                         pinskingroup = (daliasskingroup_t *)datapointer;
 359                         datapointer += sizeof(daliasskingroup_t);
 360
 361                         groupskins = LittleLong (pinskingroup->numskins);
 362
 363                         pinskinintervals = (daliasskininterval_t *)datapointer;
 364                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 365
 366                         interval = LittleFloat(pinskinintervals[0].interval);
 367                         if (interval < 0.01f)
 368                                 Host_Error("Mod_LoadQ1AliasModel: invalid interval\n");
 369                 }
 370
 371                 sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 372                 loadmodel->skinscenes[i].firstframe = totalskins;
 373                 loadmodel->skinscenes[i].framecount = groupskins;
 374                 loadmodel->skinscenes[i].framerate = 1.0f / interval;
 375                 loadmodel->skinscenes[i].loop = true;
 376
 377                 for (j = 0;j < groupskins;j++)
 378                 {
 379                         if (groupskins > 1)
 380                                 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 381                         else
 382                                 sprintf (name, "%s_%i", loadmodel->name, i);
 383                         if (!Mod_LoadSkinFrame(loadmodel->skinframes + totalskins, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true))
 384                                 Mod_LoadSkinFrame_Internal(loadmodel->skinframes + totalskins, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true, (qbyte *)datapointer, skinwidth, skinheight);
 385                         datapointer += skinwidth * skinheight;
 386                         totalskins++;
 387                 }
 388         }
 389         // check for skins that don't exist in the model, but do exist as external images
 390         // (this was added because yummyluv kept pestering me about support for it)
 391         for (;;)
 392         {
 393                 sprintf (name, "%s_%i", loadmodel->name, loadmodel->numskins);
 394                 if (Mod_LoadSkinFrame (&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true))
 395                 {
 396                         // expand the arrays to make room
 397                         tempskinscenes = loadmodel->skinscenes;
 398                         tempskinframes = loadmodel->skinframes;
 399                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 400                         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(skinframe_t));
 401                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 402                         memcpy(loadmodel->skinframes, tempskinframes, totalskins * sizeof(skinframe_t));
 403                         Mem_Free(tempskinscenes);
 404                         Mem_Free(tempskinframes);
 405                         // store the info about the new skin
 406                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 407                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 408                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 409                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 410                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 411                         loadmodel->skinframes[totalskins] = tempskinframe;
 412                         loadmodel->numskins++;
 413                         totalskins++;
 414                 }
 415                 else
 416                         break;
 417         }
 418
 419         loadmodel->aliasdata_meshes->num_skins = 0;
 420         for (i = 0;i < loadmodel->numskins;i++)
 421                 loadmodel->aliasdata_meshes->num_skins += loadmodel->skinscenes[i].framecount;
 422         loadmodel->aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 423
 424         // store texture coordinates into temporary array, they will be stored
 425         // after usage is determined (triangle data)
 426         vertst = Mem_Alloc(tempmempool, numverts * 2 * sizeof(float[2]));
 427         vertremap = Mem_Alloc(tempmempool, numverts * 3 * sizeof(int));
 428         vertonseam = vertremap + numverts * 2;
 429
 430         scales = 1.0 / skinwidth;
 431         scalet = 1.0 / skinheight;
 432         for (i = 0;i < numverts;i++)
 433         {
 434                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 435                 vertst[i*2+0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 436                 vertst[i*2+1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 437                 vertst[(i+numverts)*2+0] = vertst[i*2+0] + 0.5;
 438                 vertst[(i+numverts)*2+1] = vertst[i*2+1];
 439         }
 440
 441 // load triangle data
 442         loadmodel->aliasdata_meshes->data_element3i = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->aliasdata_meshes->num_triangles);
 443
 444         // read the triangle elements
 445         for (i = 0;i < loadmodel->aliasdata_meshes->num_triangles;i++)
 446                 for (j = 0;j < 3;j++)
 447                         loadmodel->aliasdata_meshes->data_element3i[i*3+j] = LittleLong(pintriangles[i].vertindex[j]);
 448         // validate (note numverts is used because this is the original data)
 449         Mod_ValidateElements(loadmodel->aliasdata_meshes->data_element3i, loadmodel->aliasdata_meshes->num_triangles, numverts, __FILE__, __LINE__);
 450         // now butcher the elements according to vertonseam and tri->facesfront
 451         // and then compact the vertex set to remove duplicates
 452         for (i = 0;i < loadmodel->aliasdata_meshes->num_triangles;i++)
 453                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 454                         for (j = 0;j < 3;j++)
 455                                 if (vertonseam[loadmodel->aliasdata_meshes->data_element3i[i*3+j]])
 456                                         loadmodel->aliasdata_meshes->data_element3i[i*3+j] += numverts;
 457         // count the usage
 458         // (this uses vertremap to count usage to save some memory)
 459         for (i = 0;i < numverts*2;i++)
 460                 vertremap[i] = 0;
 461         for (i = 0;i < loadmodel->aliasdata_meshes->num_triangles*3;i++)
 462                 vertremap[loadmodel->aliasdata_meshes->data_element3i[i]]++;
 463         // build remapping table and compact array
 464         loadmodel->aliasdata_meshes->num_vertices = 0;
 465         for (i = 0;i < numverts*2;i++)
 466         {
 467                 if (vertremap[i])
 468                 {
 469                         vertremap[i] = loadmodel->aliasdata_meshes->num_vertices;
 470                         vertst[loadmodel->aliasdata_meshes->num_vertices*2+0] = vertst[i*2+0];
 471                         vertst[loadmodel->aliasdata_meshes->num_vertices*2+1] = vertst[i*2+1];
 472                         loadmodel->aliasdata_meshes->num_vertices++;
 473                 }
 474                 else
 475                         vertremap[i] = -1; // not used at all
 476         }
 477         // remap the elements to the new vertex set
 478         for (i = 0;i < loadmodel->aliasdata_meshes->num_triangles * 3;i++)
 479                 loadmodel->aliasdata_meshes->data_element3i[i] = vertremap[loadmodel->aliasdata_meshes->data_element3i[i]];
 480         // store the texture coordinates
 481         loadmodel->aliasdata_meshes->data_texcoord2f = Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * loadmodel->aliasdata_meshes->num_vertices);
 482         for (i = 0;i < loadmodel->aliasdata_meshes->num_vertices;i++)
 483         {
 484                 loadmodel->aliasdata_meshes->data_texcoord2f[i*2+0] = vertst[i*2+0];
 485                 loadmodel->aliasdata_meshes->data_texcoord2f[i*2+1] = vertst[i*2+1];
 486         }
 487
 488 // load the frames
 489         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 490         loadmodel->aliasdata_meshes->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, sizeof(float[4][3]) * loadmodel->aliasdata_meshes->num_frames * loadmodel->aliasdata_meshes->num_vertices);
 491         loadmodel->aliasdata_meshes->data_aliassvector3f = loadmodel->aliasdata_meshes->data_aliasvertex3f + loadmodel->aliasdata_meshes->num_frames * loadmodel->aliasdata_meshes->num_vertices * 3 * 1;
 492         loadmodel->aliasdata_meshes->data_aliastvector3f = loadmodel->aliasdata_meshes->data_aliasvertex3f + loadmodel->aliasdata_meshes->num_frames * loadmodel->aliasdata_meshes->num_vertices * 3 * 2;
 493         loadmodel->aliasdata_meshes->data_aliasnormal3f = loadmodel->aliasdata_meshes->data_aliasvertex3f + loadmodel->aliasdata_meshes->num_frames * loadmodel->aliasdata_meshes->num_vertices * 3 * 3;
 494         Mod_MDL_LoadFrames (startframes, numverts, scale, translate, vertremap);
 495         loadmodel->aliasdata_meshes->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->aliasdata_meshes->num_triangles * sizeof(int[3]));
 496         Mod_BuildTriangleNeighbors(loadmodel->aliasdata_meshes->data_neighbor3i, loadmodel->aliasdata_meshes->data_element3i, loadmodel->aliasdata_meshes->num_triangles);
 497         for (i = 0;i < loadmodel->aliasdata_meshes->num_skins;i++)
 498                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->aliasdata_meshes->data_skins + i, loadmodel->skinframes + i);
 499         Mod_CalcAliasModelBBoxes();
 500
 501         Mem_Free(vertst);
 502         Mem_Free(vertremap);
 503 }
 504
 505 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int numverts, int *vertremap)
 506 {
 507         int i;
 508         trivertx_t *in;
 509         for (i = 0;i < numverts;i++, out3f += 3)
 510         {
 511                 in = v + vertremap[i];
 512                 out3f[0] = in->v[0] * scale[0] + translate[0];
 513                 out3f[1] = in->v[1] * scale[1] + translate[1];
 514                 out3f[2] = in->v[2] * scale[2] + translate[2];
 515         }
 516 }
 517
 518 void Mod_LoadQ2AliasModel (model_t *mod, void *buffer)
 519 {
 520         int i, j, k, hashindex, num, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end, numverts;
 521         float *stverts, s, t, scale[3], translate[3];
 522         md2_t *pinmodel;
 523         qbyte *base, *datapointer;
 524         md2frame_t *pinframe;
 525         char *inskin;
 526         md2triangle_t *intri;
 527         unsigned short *inst;
 528         struct md2verthash_s
 529         {
 530                 struct md2verthash_s *next;
 531                 int xyz;
 532                 float st[2];
 533         }
 534         *hash, **md2verthash, *md2verthashdata;
 535
 536         pinmodel = buffer;
 537         base = buffer;
 538
 539         version = LittleLong (pinmodel->version);
 540         if (version != MD2ALIAS_VERSION)
 541                 Host_Error ("%s has wrong version number (%i should be %i)",
 542                         loadmodel->name, version, MD2ALIAS_VERSION);
 543
 544         loadmodel->type = mod_alias;
 545         loadmodel->aliastype = ALIASTYPE_ALIAS;
 546         loadmodel->DrawSky = NULL;
 547         loadmodel->Draw = R_Model_Alias_Draw;
 548         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 549         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 550         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 551
 552         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > (65536 / 3))
 553                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 554         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > 65536)
 555                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 556         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > 65536)
 557                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 558         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > 256)
 559                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 560
 561         end = LittleLong(pinmodel->ofs_end);
 562         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
 563                 Host_Error ("%s is not a valid model", loadmodel->name);
 564         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
 565                 Host_Error ("%s is not a valid model", loadmodel->name);
 566         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
 567                 Host_Error ("%s is not a valid model", loadmodel->name);
 568         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
 569                 Host_Error ("%s is not a valid model", loadmodel->name);
 570         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
 571                 Host_Error ("%s is not a valid model", loadmodel->name);
 572
 573         loadmodel->aliasnum_meshes = 1;
 574         loadmodel->aliasdata_meshes = Mem_Alloc(loadmodel->mempool, sizeof(aliasmesh_t));
 575
 576         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 577         numxyz = LittleLong(pinmodel->num_xyz);
 578         numst = LittleLong(pinmodel->num_st);
 579         loadmodel->aliasdata_meshes->num_triangles = LittleLong(pinmodel->num_tris);
 580         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 581         loadmodel->aliasdata_meshes->num_frames = loadmodel->numframes;
 582         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 583
 584         loadmodel->flags = 0; // there are no MD2 flags
 585         loadmodel->synctype = ST_RAND;
 586
 587         // load the skins
 588         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 589         if (loadmodel->numskins)
 590         {
 591                 // skins found (most likely not a player model)
 592                 loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, sizeof(skinframe_t) * loadmodel->numskins);
 593                 for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
 594                         Mod_LoadSkinFrame (loadmodel->skinframes + i, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true);
 595         }
 596         else
 597         {
 598                 // no skins (most likely a player model)
 599                 loadmodel->numskins = 1;
 600                 loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, sizeof(skinframe_t) * loadmodel->numskins);
 601         }
 602         loadmodel->aliasdata_meshes->num_skins = loadmodel->numskins;
 603         loadmodel->aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 604
 605         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 606         for (i = 0;i < loadmodel->numskins;i++)
 607         {
 608                 loadmodel->skinscenes[i].firstframe = i;
 609                 loadmodel->skinscenes[i].framecount = 1;
 610                 loadmodel->skinscenes[i].loop = true;
 611                 loadmodel->skinscenes[i].framerate = 10;
 612         }
 613
 614
 615         // load the triangles and stvert data
 616         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 617         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 618         skinwidth = LittleLong(pinmodel->skinwidth);
 619         skinheight = LittleLong(pinmodel->skinheight);
 620
 621         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 622         s = 1.0f / skinwidth;
 623         t = 1.0f / skinheight;
 624         for (i = 0;i < numst;i++)
 625         {
 626                 j = (unsigned short) LittleShort(inst[i*2+0]);
 627                 k = (unsigned short) LittleShort(inst[i*2+1]);
 628                 if (j >= skinwidth || k >= skinheight)
 629                 {
 630                         Mem_Free(stverts);
 631                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
 632                 }
 633                 stverts[i*2+0] = j * s;
 634                 stverts[i*2+1] = k * t;
 635         }
 636
 637         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 638         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->aliasdata_meshes->num_triangles * 3 * sizeof(*hash));
 639         // swap the triangle list
 640         num = 0;
 641         loadmodel->aliasdata_meshes->data_element3i = Mem_Alloc(loadmodel->mempool, loadmodel->aliasdata_meshes->num_triangles * sizeof(int[3]));
 642         for (i = 0;i < loadmodel->aliasdata_meshes->num_triangles;i++)
 643         {
 644                 for (j = 0;j < 3;j++)
 645                 {
 646                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 647                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 648                         if (xyz >= numxyz || st >= numst)
 649                         {
 650                                 Mem_Free(md2verthash);
 651                                 Mem_Free(md2verthashdata);
 652                                 Mem_Free(stverts);
 653                                 if (xyz >= numxyz)
 654                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
 655                                 if (st >= numst)
 656                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
 657                         }
 658                         s = stverts[st*2+0];
 659                         t = stverts[st*2+1];
 660                         hashindex = (xyz * 17 + st) & 255;
 661                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 662                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 663                                         break;
 664                         if (hash == NULL)
 665                         {
 666                                 hash = md2verthashdata + num++;
 667                                 hash->xyz = xyz;
 668                                 hash->st[0] = s;
 669                                 hash->st[1] = t;
 670                                 hash->next = md2verthash[hashindex];
 671                                 md2verthash[hashindex] = hash;
 672                         }
 673                         loadmodel->aliasdata_meshes->data_element3i[i*3+j] = (hash - md2verthashdata);
 674                 }
 675         }
 676
 677         Mem_Free(stverts);
 678
 679         numverts = num;
 680         loadmodel->aliasdata_meshes->num_vertices = numverts;
 681         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 682         loadmodel->aliasdata_meshes->data_texcoord2f = Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
 683         for (i = 0;i < num;i++)
 684         {
 685                 hash = md2verthashdata + i;
 686                 vertremap[i] = hash->xyz;
 687                 loadmodel->aliasdata_meshes->data_texcoord2f[i*2+0] = hash->st[0];
 688                 loadmodel->aliasdata_meshes->data_texcoord2f[i*2+1] = hash->st[1];
 689         }
 690
 691         Mem_Free(md2verthash);
 692         Mem_Free(md2verthashdata);
 693
 694         // load the frames
 695         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 696         loadmodel->aliasdata_meshes->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, numverts * loadmodel->aliasdata_meshes->num_frames * sizeof(float[4][3]));
 697         loadmodel->aliasdata_meshes->data_aliassvector3f = loadmodel->aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->aliasdata_meshes->num_frames * 3 * 1;
 698         loadmodel->aliasdata_meshes->data_aliastvector3f = loadmodel->aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->aliasdata_meshes->num_frames * 3 * 2;
 699         loadmodel->aliasdata_meshes->data_aliasnormal3f = loadmodel->aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->aliasdata_meshes->num_frames * 3 * 3;
 700         for (i = 0;i < loadmodel->aliasdata_meshes->num_frames;i++)
 701         {
 702                 pinframe = (md2frame_t *)datapointer;
 703                 datapointer += sizeof(md2frame_t);
 704                 for (j = 0;j < 3;j++)
 705                 {
 706                         scale[j] = LittleFloat(pinframe->scale[j]);
 707                         translate[j] = LittleFloat(pinframe->translate[j]);
 708                 }
 709                 Mod_MD2_ConvertVerts(scale, translate, (void *)datapointer, loadmodel->aliasdata_meshes->data_aliasvertex3f + i * numverts * 3, numverts, vertremap);
 710                 Mod_BuildTextureVectorsAndNormals(loadmodel->aliasdata_meshes->num_vertices, loadmodel->aliasdata_meshes->num_triangles, loadmodel->aliasdata_meshes->data_aliasvertex3f + i * loadmodel->aliasdata_meshes->num_vertices * 3, loadmodel->aliasdata_meshes->data_texcoord2f, loadmodel->aliasdata_meshes->data_element3i, loadmodel->aliasdata_meshes->data_aliassvector3f + i * loadmodel->aliasdata_meshes->num_vertices * 3, loadmodel->aliasdata_meshes->data_aliastvector3f + i * loadmodel->aliasdata_meshes->num_vertices * 3, loadmodel->aliasdata_meshes->data_aliasnormal3f + i * loadmodel->aliasdata_meshes->num_vertices * 3);
 711                 datapointer += numxyz * sizeof(trivertx_t);
 712
 713                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 714                 loadmodel->animscenes[i].firstframe = i;
 715                 loadmodel->animscenes[i].framecount = 1;
 716                 loadmodel->animscenes[i].framerate = 10;
 717                 loadmodel->animscenes[i].loop = true;
 718         }
 719
 720         Mem_Free(vertremap);
 721
 722         loadmodel->aliasdata_meshes->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->aliasdata_meshes->num_triangles * sizeof(int[3]));
 723         Mod_BuildTriangleNeighbors(loadmodel->aliasdata_meshes->data_neighbor3i, loadmodel->aliasdata_meshes->data_element3i, loadmodel->aliasdata_meshes->num_triangles);
 724         for (i = 0;i < loadmodel->aliasdata_meshes->num_skins;i++)
 725                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->aliasdata_meshes->data_skins + i, loadmodel->skinframes + i);
 726         Mod_CalcAliasModelBBoxes();
 727 }
 728
 729 void Mod_LoadQ3AliasModel(model_t *mod, void *buffer)
 730 {
 731         int i, j, version;
 732         md3modelheader_t *pinmodel;
 733         md3frameinfo_t *pinframe;
 734         md3mesh_t *pinmesh;
 735         aliasmesh_t *mesh;
 736         skinframe_t tempskinframe;
 737
 738         pinmodel = buffer;
 739
 740         if (memcmp(pinmodel->identifier, "IDP3", 4))
 741                 Host_Error ("%s is not a MD3 (IDP3) file\n", loadmodel->name);
 742         version = LittleLong (pinmodel->version);
 743         if (version != MD3VERSION)
 744                 Host_Error ("%s has wrong version number (%i should be %i)",
 745                         loadmodel->name, version, MD3VERSION);
 746
 747         loadmodel->type = mod_alias;
 748         loadmodel->aliastype = ALIASTYPE_ALIAS;
 749         loadmodel->DrawSky = NULL;
 750         loadmodel->Draw = R_Model_Alias_Draw;
 751         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 752         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 753         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 754         loadmodel->flags = 0;
 755         loadmodel->synctype = ST_RAND;
 756
 757         // set up some global info about the model
 758         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 759         loadmodel->numskins = 1;
 760         loadmodel->aliasnum_meshes = LittleLong(pinmodel->num_meshes);
 761         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 762         loadmodel->skinscenes[0].firstframe = 0;
 763         loadmodel->skinscenes[0].framecount = 1;
 764         loadmodel->skinscenes[0].loop = true;
 765         loadmodel->skinscenes[0].framerate = 10;
 766
 767         // load frameinfo
 768         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 769         for (i = 0, pinframe = (md3frameinfo_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
 770         {
 771                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 772                 loadmodel->animscenes[i].firstframe = i;
 773                 loadmodel->animscenes[i].framecount = 1;
 774                 loadmodel->animscenes[i].framerate = 10;
 775                 loadmodel->animscenes[i].loop = true;
 776         }
 777
 778         // tags are not loaded yet
 779
 780         // load meshes
 781         loadmodel->aliasdata_meshes = Mem_Alloc(loadmodel->mempool, loadmodel->aliasnum_meshes * sizeof(aliasmesh_t));
 782         for (i = 0, pinmesh = (md3mesh_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_meshes));i < loadmodel->aliasnum_meshes;i++, pinmesh = (md3mesh_t *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_end)))
 783         {
 784                 if (memcmp(pinmesh->identifier, "IDP3", 4))
 785                         Host_Error("Mod_LoadQ3AliasModel: invalid mesh identifier (not IDP3)\n");
 786                 mesh = loadmodel->aliasdata_meshes + i;
 787                 mesh->num_skins = loadmodel->numskins;
 788                 mesh->num_frames = LittleLong(pinmesh->num_frames);
 789                 mesh->num_vertices = LittleLong(pinmesh->num_vertices);
 790                 mesh->num_triangles = LittleLong(pinmesh->num_triangles);
 791                 mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(aliasskin_t));
 792                 mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
 793                 mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
 794                 mesh->data_texcoord2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
 795                 mesh->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * mesh->num_frames * sizeof(float[4][3]));
 796                 mesh->data_aliassvector3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 1;
 797                 mesh->data_aliastvector3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 2;
 798                 mesh->data_aliasnormal3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 3;
 799                 for (j = 0;j < mesh->num_triangles * 3;j++)
 800                         mesh->data_element3i[j] = LittleLong(((int *)((qbyte *)pinmesh + pinmesh->lump_elements))[j]);
 801                 for (j = 0;j < mesh->num_vertices;j++)
 802                 {
 803                         mesh->data_texcoord2f[j * 2 + 0] = LittleLong(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 0]);
 804                         mesh->data_texcoord2f[j * 2 + 1] = LittleLong(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 1]);
 805                 }
 806                 for (j = 0;j < mesh->num_vertices * mesh->num_frames;j++)
 807                 {
 808                         mesh->data_aliasvertex3f[j * 3 + 0] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 0]) * (1.0f / 64.0f);
 809                         mesh->data_aliasvertex3f[j * 3 + 1] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 1]) * (1.0f / 64.0f);
 810                         mesh->data_aliasvertex3f[j * 3 + 2] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 2]) * (1.0f / 64.0f);
 811                 }
 812                 for (j = 0;j < mesh->num_frames;j++)
 813                         Mod_BuildTextureVectorsAndNormals(mesh->num_vertices, mesh->num_triangles, mesh->data_aliasvertex3f + j * mesh->num_vertices * 3, mesh->data_texcoord2f, mesh->data_element3i, mesh->data_aliassvector3f + j * mesh->num_vertices * 3, mesh->data_aliastvector3f + j * mesh->num_vertices * 3, mesh->data_aliasnormal3f + j * mesh->num_vertices * 3);
 814
 815                 memset(&tempskinframe, 0, sizeof(tempskinframe));
 816                 if (LittleLong(pinmesh->num_shaders) >= 1 && ((md3shader_t *)((qbyte *) pinmesh + pinmesh->lump_shaders))->name[0])
 817                         Mod_LoadSkinFrame (&tempskinframe, ((md3shader_t *)((qbyte *) pinmesh + pinmesh->lump_shaders))->name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true);
 818                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
 819                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
 820                 Mod_BuildAliasSkinFromSkinFrame(mesh->data_skins, &tempskinframe);
 821         }
 822         Mod_CalcAliasModelBBoxes();
 823 }
 824
 825 extern void R_Model_Zymotic_DrawSky(entity_render_t *ent);
 826 extern void R_Model_Zymotic_Draw(entity_render_t *ent);
 827 extern void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent);
 828 extern void R_Model_Zymotic_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 829 extern void R_Model_Zymotic_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz);
 830 void Mod_LoadZymoticModel(model_t *mod, void *buffer)
 831 {
 832         zymtype1header_t *pinmodel, *pheader;
 833         qbyte *pbase;
 834
 835         pinmodel = (void *)buffer;
 836         pbase = buffer;
 837         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
 838                 Host_Error ("Mod_LoadZymoticModel: %s is not a zymotic model\n");
 839         if (BigLong(pinmodel->type) != 1)
 840                 Host_Error ("Mod_LoadZymoticModel: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
 841
 842         loadmodel->type = mod_alias;
 843         loadmodel->aliastype = ALIASTYPE_ZYM;
 844         loadmodel->DrawSky = NULL;
 845         loadmodel->Draw = R_Model_Zymotic_Draw;
 846         loadmodel->DrawFakeShadow = NULL;//R_Model_Zymotic_DrawFakeShadow;
 847         loadmodel->DrawShadowVolume = NULL;//R_Model_Zymotic_DrawShadowVolume;
 848         loadmodel->DrawLight = NULL;//R_Model_Zymotic_DrawLight;
 849
 850         // byteswap header
 851         pheader = pinmodel;
 852         pheader->type = BigLong(pinmodel->type);
 853         pheader->filesize = BigLong(pinmodel->filesize);
 854         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
 855         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
 856         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
 857         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
 858         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
 859         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
 860         pheader->radius = BigFloat(pinmodel->radius);
 861         pheader->numverts = loadmodel->zymnum_verts = BigLong(pinmodel->numverts);
 862         pheader->numtris = loadmodel->zymnum_tris = BigLong(pinmodel->numtris);
 863         pheader->numshaders = loadmodel->zymnum_shaders = BigLong(pinmodel->numshaders);
 864         pheader->numbones = loadmodel->zymnum_bones = BigLong(pinmodel->numbones);
 865         pheader->numscenes = loadmodel->zymnum_scenes = BigLong(pinmodel->numscenes);
 866         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
 867         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
 868         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
 869         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
 870         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
 871         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
 872         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
 873         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
 874         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
 875         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
 876         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
 877         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
 878         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
 879         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
 880         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
 881         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
 882         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
 883         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
 884
 885         loadmodel->flags = 0; // there are no flags
 886         loadmodel->numframes = pheader->numscenes;
 887         loadmodel->synctype = ST_SYNC;
 888         //loadmodel->numtris = pheader->numtris;
 889         //loadmodel->numverts = 0;
 890
 891         {
 892                 unsigned int i;
 893                 float modelradius, corner[2];
 894                 // model bbox
 895                 modelradius = pheader->radius;
 896                 for (i = 0;i < 3;i++)
 897                 {
 898                         loadmodel->normalmins[i] = pheader->mins[i];
 899                         loadmodel->normalmaxs[i] = pheader->maxs[i];
 900                         loadmodel->rotatedmins[i] = -modelradius;
 901                         loadmodel->rotatedmaxs[i] = modelradius;
 902                 }
 903                 corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
 904                 corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
 905                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
 906                 if (loadmodel->yawmaxs[0] > modelradius)
 907                         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
 908                 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
 909                 loadmodel->yawmins[2] = loadmodel->normalmins[2];
 910                 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 911                 loadmodel->radius = modelradius;
 912                 loadmodel->radius2 = modelradius * modelradius;
 913         }
 914
 915         {
 916                 // FIXME: add shaders, and make them switchable shader sets and...
 917                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) + sizeof(skinframe_t));
 918                 loadmodel->skinscenes[0].firstframe = 0;
 919                 loadmodel->skinscenes[0].framecount = 1;
 920                 loadmodel->skinscenes[0].loop = true;
 921                 loadmodel->skinscenes[0].framerate = 10;
 922                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + 1);
 923                 loadmodel->numskins = 1;
 924         }
 925
 926         // go through the lumps, swapping things
 927
 928         {
 929                 int i, numposes;
 930                 zymscene_t *scene;
 931         //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
 932                 loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 933                 scene = (void *) (pheader->lump_scenes.start + pbase);
 934                 numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
 935                 for (i = 0;i < pheader->numscenes;i++)
 936                 {
 937                         memcpy(loadmodel->animscenes[i].name, scene->name, 32);
 938                         loadmodel->animscenes[i].firstframe = BigLong(scene->start);
 939                         loadmodel->animscenes[i].framecount = BigLong(scene->length);
 940                         loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
 941                         loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
 942                         if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
 943                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
 944                         if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
 945                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
 946                         if (loadmodel->animscenes[i].framerate < 0)
 947                                 Host_Error("Mod_LoadZymoticModel: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
 948                         scene++;
 949                 }
 950         }
 951
 952         {
 953                 int i;
 954                 float *poses;
 955         //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
 956                 loadmodel->zymdata_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
 957                 poses = (void *) (pheader->lump_poses.start + pbase);
 958                 for (i = 0;i < pheader->lump_poses.length / 4;i++)
 959                         loadmodel->zymdata_poses[i] = BigFloat(poses[i]);
 960         }
 961
 962         {
 963                 int i;
 964                 zymbone_t *bone;
 965         //      zymlump_t lump_bones; // zymbone_t bone[numbones];
 966                 loadmodel->zymdata_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(zymbone_t));
 967                 bone = (void *) (pheader->lump_bones.start + pbase);
 968                 for (i = 0;i < pheader->numbones;i++)
 969                 {
 970                         memcpy(loadmodel->zymdata_bones[i].name, bone[i].name, sizeof(bone[i].name));
 971                         loadmodel->zymdata_bones[i].flags = BigLong(bone[i].flags);
 972                         loadmodel->zymdata_bones[i].parent = BigLong(bone[i].parent);
 973                         if (loadmodel->zymdata_bones[i].parent >= i)
 974                                 Host_Error("Mod_LoadZymoticModel: bone[%i].parent >= %i in %s\n", i, i, loadmodel->name);
 975                 }
 976         }
 977
 978         {
 979                 int i, *bonecount;
 980         //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
 981                 loadmodel->zymdata_vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
 982                 bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
 983                 for (i = 0;i < pheader->numverts;i++)
 984                 {
 985                         loadmodel->zymdata_vertbonecounts[i] = BigLong(bonecount[i]);
 986                         if (loadmodel->zymdata_vertbonecounts[i] < 1)
 987                                 Host_Error("Mod_LoadZymoticModel: bone vertex count < 1 in %s\n", loadmodel->name);
 988                 }
 989         }
 990
 991         {
 992                 int i;
 993                 zymvertex_t *vertdata;
 994         //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
 995                 loadmodel->zymdata_verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
 996                 vertdata = (void *) (pheader->lump_verts.start + pbase);
 997                 for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
 998                 {
 999                         loadmodel->zymdata_verts[i].bonenum = BigLong(vertdata[i].bonenum);
1000                         loadmodel->zymdata_verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
1001                         loadmodel->zymdata_verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
1002                         loadmodel->zymdata_verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
1003                 }
1004         }
1005
1006         {
1007                 int i;
1008                 float *intexcoord2f, *outtexcoord2f;
1009         //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1010                 loadmodel->zymdata_texcoords = outtexcoord2f = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[2]));
1011                 intexcoord2f = (void *) (pheader->lump_texcoords.start + pbase);
1012                 for (i = 0;i < pheader->numverts;i++)
1013                 {
1014                         outtexcoord2f[i*2+0] = BigFloat(intexcoord2f[i*2+0]);
1015                         // flip T coordinate for OpenGL
1016                         outtexcoord2f[i*2+1] = 1 - BigFloat(intexcoord2f[i*2+1]);
1017                 }
1018         }
1019
1020         {
1021                 int i, count, *renderlist, *renderlistend, *outrenderlist;
1022         //      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)
1023                 loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, pheader->lump_render.length);
1024                 // byteswap, validate, and swap winding order of tris
1025                 count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1026                 if (pheader->lump_render.length != count)
1027                         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);
1028                 outrenderlist = loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, count);
1029                 renderlist = (void *) (pheader->lump_render.start + pbase);
1030                 renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
1031                 for (i = 0;i < pheader->numshaders;i++)
1032                 {
1033                         if (renderlist >= renderlistend)
1034                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1035                         count = BigLong(*renderlist);renderlist++;
1036                         if (renderlist + count * 3 > renderlistend)
1037                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1038                         *outrenderlist++ = count;
1039                         while (count--)
1040                         {
1041                                 outrenderlist[2] = BigLong(renderlist[0]);
1042                                 outrenderlist[1] = BigLong(renderlist[1]);
1043                                 outrenderlist[0] = BigLong(renderlist[2]);
1044                                 if ((unsigned int)outrenderlist[0] >= (unsigned int)pheader->numverts
1045                                  || (unsigned int)outrenderlist[1] >= (unsigned int)pheader->numverts
1046                                  || (unsigned int)outrenderlist[2] >= (unsigned int)pheader->numverts)
1047                                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
1048                                 renderlist += 3;
1049                                 outrenderlist += 3;
1050                         }
1051                 }
1052         }
1053
1054         {
1055                 int i;
1056                 char *shadername;
1057         //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1058                 loadmodel->zymdata_textures = Mem_Alloc(loadmodel->mempool, pheader->numshaders * sizeof(rtexture_t *));
1059                 shadername = (void *) (pheader->lump_shaders.start + pbase);
1060                 for (i = 0;i < pheader->numshaders;i++)
1061                         loadmodel->zymdata_textures[i] = loadtextureimage(loadmodel->texturepool, shadername + i * 32, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0));
1062         }
1063
1064         {
1065         //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1066                 loadmodel->zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1067                 memcpy(loadmodel->zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1068         }
1069 }