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 void Mod_AliasInit (void)
  26 {
  27 }
  28
  29 static void Mod_CalcAliasModelBBoxes (void)
  30 {
  31         int vnum, meshnum;
  32         float dist, yawradius, radius;
  33         aliasmesh_t *mesh;
  34         float *v;
  35         VectorClear(loadmodel->normalmins);
  36         VectorClear(loadmodel->normalmaxs);
  37         yawradius = 0;
  38         radius = 0;
  39         for (meshnum = 0, mesh = loadmodel->alias.aliasdata_meshes;meshnum < loadmodel->alias.aliasnum_meshes;meshnum++, mesh++)
  40         {
  41                 for (vnum = 0, v = mesh->data_aliasvertex3f;vnum < mesh->num_vertices * mesh->num_frames;vnum++, v += 3)
  42                 {
  43                         if (loadmodel->normalmins[0] > v[0]) loadmodel->normalmins[0] = v[0];
  44                         if (loadmodel->normalmins[1] > v[1]) loadmodel->normalmins[1] = v[1];
  45                         if (loadmodel->normalmins[2] > v[2]) loadmodel->normalmins[2] = v[2];
  46                         if (loadmodel->normalmaxs[0] < v[0]) loadmodel->normalmaxs[0] = v[0];
  47                         if (loadmodel->normalmaxs[1] < v[1]) loadmodel->normalmaxs[1] = v[1];
  48                         if (loadmodel->normalmaxs[2] < v[2]) loadmodel->normalmaxs[2] = v[2];
  49                         dist = v[0] * v[0] + v[1] * v[1];
  50                         if (yawradius < dist)
  51                                 yawradius = dist;
  52                         dist += v[2] * v[2];
  53                         if (radius < dist)
  54                                 radius = dist;
  55                 }
  56         }
  57         radius = sqrt(radius);
  58         yawradius = sqrt(yawradius);
  59         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -yawradius;
  60         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = yawradius;
  61         loadmodel->yawmins[2] = loadmodel->normalmins[2];
  62         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
  63         loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -radius;
  64         loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = radius;
  65         loadmodel->radius = radius;
  66         loadmodel->radius2 = radius * radius;
  67 }
  68
  69 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int *vertremap)
  70 {
  71         int i, j;
  72         vec3_t temp;
  73         for (i = 0;i < inverts;i++)
  74         {
  75                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
  76                         continue;
  77                 temp[0] = v[i].v[0] * scale[0] + translate[0];
  78                 temp[1] = v[i].v[1] * scale[1] + translate[1];
  79                 temp[2] = v[i].v[2] * scale[2] + translate[2];
  80                 j = vertremap[i]; // not onseam
  81                 if (j >= 0)
  82                         VectorCopy(temp, out3f + j * 3);
  83                 j = vertremap[i+inverts]; // onseam
  84                 if (j >= 0)
  85                         VectorCopy(temp, out3f + j * 3);
  86         }
  87 }
  88
  89 static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, vec3_t scale, vec3_t translate, int *vertremap)
  90 {
  91         int i, f, pose, groupframes;
  92         float interval;
  93         daliasframetype_t *pframetype;
  94         daliasframe_t *pinframe;
  95         daliasgroup_t *group;
  96         daliasinterval_t *intervals;
  97         animscene_t *scene;
  98         pose = 0;
  99         scene = loadmodel->animscenes;
 100         for (f = 0;f < loadmodel->numframes;f++)
 101         {
 102                 pframetype = (daliasframetype_t *)datapointer;
 103                 datapointer += sizeof(daliasframetype_t);
 104                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 105                 {
 106                         // a single frame is still treated as a group
 107                         interval = 0.1f;
 108                         groupframes = 1;
 109                 }
 110                 else
 111                 {
 112                         // read group header
 113                         group = (daliasgroup_t *)datapointer;
 114                         datapointer += sizeof(daliasgroup_t);
 115                         groupframes = LittleLong (group->numframes);
 116
 117                         // intervals (time per frame)
 118                         intervals = (daliasinterval_t *)datapointer;
 119                         datapointer += sizeof(daliasinterval_t) * groupframes;
 120
 121                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 122                         if (interval < 0.01f)
 123                                 Host_Error("Mod_MDL_LoadFrames: invalid interval");
 124                 }
 125
 126                 // get scene name from first frame
 127                 pinframe = (daliasframe_t *)datapointer;
 128
 129                 strcpy(scene->name, pinframe->name);
 130                 scene->firstframe = pose;
 131                 scene->framecount = groupframes;
 132                 scene->framerate = 1.0f / interval;
 133                 scene->loop = true;
 134                 scene++;
 135
 136                 // read frames
 137                 for (i = 0;i < groupframes;i++)
 138                 {
 139                         pinframe = (daliasframe_t *)datapointer;
 140                         datapointer += sizeof(daliasframe_t);
 141                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, vertremap);
 142                         Mod_BuildTextureVectorsAndNormals(loadmodel->alias.aliasdata_meshes->num_vertices, loadmodel->alias.aliasdata_meshes->num_triangles, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_texcoord2f, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->data_aliassvector3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliastvector3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliasnormal3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3);
 143                         datapointer += sizeof(trivertx_t) * inverts;
 144                         pose++;
 145                 }
 146         }
 147 }
 148
 149 aliaslayer_t mod_alias_layersbuffer[16]; // 7 currently used
 150 void Mod_BuildAliasSkinFromSkinFrame(aliasskin_t *skin, skinframe_t *skinframe)
 151 {
 152         aliaslayer_t *layer;
 153
 154         memset(&mod_alias_layersbuffer, 0, sizeof(mod_alias_layersbuffer));
 155         layer = mod_alias_layersbuffer;
 156         layer->flags = ALIASLAYER_SPECULAR;
 157         layer->texture = skinframe->gloss;
 158         layer->nmap = skinframe->nmap;
 159         layer++;
 160         if (skinframe->merged != NULL)
 161         {
 162                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_COLORMAPPED;
 163                 layer->texture = skinframe->merged;
 164                 layer->nmap = skinframe->nmap;
 165                 layer++;
 166         }
 167         if (skinframe->base != NULL)
 168         {
 169                 layer->flags = ALIASLAYER_DIFFUSE;
 170                 if (skinframe->merged != NULL)
 171                         layer->flags |= ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED;
 172                 layer->texture = skinframe->base;
 173                 layer->nmap = skinframe->nmap;
 174                 layer++;
 175         }
 176         if (skinframe->pants != NULL)
 177         {
 178                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_COLORMAP_PANTS;
 179                 layer->texture = skinframe->pants;
 180                 layer->nmap = skinframe->nmap;
 181                 layer++;
 182         }
 183         if (skinframe->shirt != NULL)
 184         {
 185                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_COLORMAP_SHIRT;
 186                 layer->texture = skinframe->shirt;
 187                 layer->nmap = skinframe->nmap;
 188                 layer++;
 189         }
 190
 191         if (skinframe->glow != NULL)
 192         {
 193                 layer->flags = 0;
 194                 layer->texture = skinframe->glow;
 195                 layer++;
 196         }
 197
 198         layer->flags = ALIASLAYER_FOG | ALIASLAYER_FORCEDRAW_IF_FIRSTPASS;
 199         layer->texture = skinframe->fog;
 200         layer++;
 201
 202         skin->flags = 0;
 203         // fog texture only exists if some pixels are transparent...
 204         if (skinframe->fog != NULL)
 205                 skin->flags |= ALIASSKIN_TRANSPARENT;
 206
 207         skin->num_layers = layer - mod_alias_layersbuffer;
 208         skin->data_layers = Mem_Alloc(loadmodel->mempool, skin->num_layers * sizeof(aliaslayer_t));
 209         memcpy(skin->data_layers, mod_alias_layersbuffer, skin->num_layers * sizeof(aliaslayer_t));
 210 }
 211
 212 void Mod_BuildAliasSkinsFromSkinFiles(aliasskin_t *skin, skinfile_t *skinfile, char *name)
 213 {
 214         int i;
 215         skinfileitem_t *skinfileitem;
 216         skinframe_t tempskinframe;
 217         if (skinfile)
 218         {
 219                 for (i = 0;skinfile;skinfile = skinfile->next, i++, skin++)
 220                 {
 221                         for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = skinfileitem->next)
 222                         {
 223                                 if (!strcmp(skinfileitem->name, name))
 224                                 {
 225                                         memset(&tempskinframe, 0, sizeof(tempskinframe));
 226                                         if (Mod_LoadSkinFrame(&tempskinframe, skinfileitem->replacement, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true))
 227                                                 Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 228                                         else
 229                                                 Con_Printf("failed to load skin #%i \"%s\" replacement \"%s\"\n", i, name, skinfileitem->replacement);
 230                                         break;
 231                                 }
 232                         }
 233                 }
 234         }
 235         else
 236         {
 237                 if (Mod_LoadSkinFrame(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true))
 238                         Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 239                 else
 240                         Con_Printf("failed to load skin \"%s\"\n", name);
 241         }
 242 }
 243
 244 #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);
 245 #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);
 246 extern void R_Model_Alias_Draw(entity_render_t *ent);
 247 extern void R_Model_Alias_DrawFakeShadow(entity_render_t *ent);
 248 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 249 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);
 250 void Mod_IDP0_Load(model_t *mod, void *buffer)
 251 {
 252         int i, j, version, totalskins, skinwidth, skinheight, groupframes, groupskins, numverts;
 253         float scales, scalet, scale[3], translate[3], interval;
 254         mdl_t *pinmodel;
 255         stvert_t *pinstverts;
 256         dtriangle_t *pintriangles;
 257         daliasskintype_t *pinskintype;
 258         daliasskingroup_t *pinskingroup;
 259         daliasskininterval_t *pinskinintervals;
 260         daliasframetype_t *pinframetype;
 261         daliasgroup_t *pinframegroup;
 262         qbyte *datapointer, *startframes, *startskins;
 263         char name[MAX_QPATH];
 264         skinframe_t tempskinframe;
 265         animscene_t *tempskinscenes;
 266         aliasskin_t *tempaliasskins;
 267         float *vertst;
 268         int *vertonseam, *vertremap;
 269         skinfile_t *skinfiles;
 270
 271         datapointer = buffer;
 272         pinmodel = (mdl_t *)datapointer;
 273         datapointer += sizeof(mdl_t);
 274
 275         version = LittleLong (pinmodel->version);
 276         if (version != ALIAS_VERSION)
 277                 Host_Error ("%s has wrong version number (%i should be %i)",
 278                                  loadmodel->name, version, ALIAS_VERSION);
 279
 280         loadmodel->type = mod_alias;
 281         loadmodel->alias.aliastype = ALIASTYPE_ALIAS;
 282         loadmodel->DrawSky = NULL;
 283         loadmodel->Draw = R_Model_Alias_Draw;
 284         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 285         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 286         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 287
 288         loadmodel->alias.aliasnum_meshes = 1;
 289         loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, sizeof(aliasmesh_t));
 290
 291         loadmodel->numskins = LittleLong(pinmodel->numskins);
 292         BOUNDI(loadmodel->numskins,0,256);
 293         skinwidth = LittleLong (pinmodel->skinwidth);
 294         BOUNDI(skinwidth,0,4096);
 295         skinheight = LittleLong (pinmodel->skinheight);
 296         BOUNDI(skinheight,0,4096);
 297         numverts = LittleLong(pinmodel->numverts);
 298         BOUNDI(numverts,0,65536);
 299         loadmodel->alias.aliasdata_meshes->num_triangles = LittleLong(pinmodel->numtris);
 300         BOUNDI(loadmodel->alias.aliasdata_meshes->num_triangles,0,65536 / 3); // max elements limit, rather than max triangles limit
 301         loadmodel->numframes = LittleLong(pinmodel->numframes);
 302         BOUNDI(loadmodel->numframes,0,65536);
 303         loadmodel->synctype = LittleLong (pinmodel->synctype);
 304         BOUNDI(loadmodel->synctype,0,2);
 305         loadmodel->flags = LittleLong (pinmodel->flags);
 306
 307         for (i = 0;i < 3;i++)
 308         {
 309                 scale[i] = LittleFloat (pinmodel->scale[i]);
 310                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 311         }
 312
 313         startskins = datapointer;
 314         totalskins = 0;
 315         for (i = 0;i < loadmodel->numskins;i++)
 316         {
 317                 pinskintype = (daliasskintype_t *)datapointer;
 318                 datapointer += sizeof(daliasskintype_t);
 319                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 320                         groupskins = 1;
 321                 else
 322                 {
 323                         pinskingroup = (daliasskingroup_t *)datapointer;
 324                         datapointer += sizeof(daliasskingroup_t);
 325                         groupskins = LittleLong(pinskingroup->numskins);
 326                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 327                 }
 328
 329                 for (j = 0;j < groupskins;j++)
 330                 {
 331                         datapointer += skinwidth * skinheight;
 332                         totalskins++;
 333                 }
 334         }
 335
 336         pinstverts = (stvert_t *)datapointer;
 337         datapointer += sizeof(stvert_t) * numverts;
 338
 339         pintriangles = (dtriangle_t *)datapointer;
 340         datapointer += sizeof(dtriangle_t) * loadmodel->alias.aliasdata_meshes->num_triangles;
 341
 342         startframes = datapointer;
 343         loadmodel->alias.aliasdata_meshes->num_frames = 0;
 344         for (i = 0;i < loadmodel->numframes;i++)
 345         {
 346                 pinframetype = (daliasframetype_t *)datapointer;
 347                 datapointer += sizeof(daliasframetype_t);
 348                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 349                         groupframes = 1;
 350                 else
 351                 {
 352                         pinframegroup = (daliasgroup_t *)datapointer;
 353                         datapointer += sizeof(daliasgroup_t);
 354                         groupframes = LittleLong(pinframegroup->numframes);
 355                         datapointer += sizeof(daliasinterval_t) * groupframes;
 356                 }
 357
 358                 for (j = 0;j < groupframes;j++)
 359                 {
 360                         datapointer += sizeof(daliasframe_t);
 361                         datapointer += sizeof(trivertx_t) * numverts;
 362                         loadmodel->alias.aliasdata_meshes->num_frames++;
 363                 }
 364         }
 365
 366         // store texture coordinates into temporary array, they will be stored
 367         // after usage is determined (triangle data)
 368         vertst = Mem_Alloc(tempmempool, numverts * 2 * sizeof(float[2]));
 369         vertremap = Mem_Alloc(tempmempool, numverts * 3 * sizeof(int));
 370         vertonseam = vertremap + numverts * 2;
 371
 372         scales = 1.0 / skinwidth;
 373         scalet = 1.0 / skinheight;
 374         for (i = 0;i < numverts;i++)
 375         {
 376                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 377                 vertst[i*2+0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 378                 vertst[i*2+1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 379                 vertst[(i+numverts)*2+0] = vertst[i*2+0] + 0.5;
 380                 vertst[(i+numverts)*2+1] = vertst[i*2+1];
 381         }
 382
 383 // load triangle data
 384         loadmodel->alias.aliasdata_meshes->data_element3i = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->alias.aliasdata_meshes->num_triangles);
 385
 386         // read the triangle elements
 387         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
 388                 for (j = 0;j < 3;j++)
 389                         loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] = LittleLong(pintriangles[i].vertindex[j]);
 390         // validate (note numverts is used because this is the original data)
 391         Mod_ValidateElements(loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles, numverts, __FILE__, __LINE__);
 392         // now butcher the elements according to vertonseam and tri->facesfront
 393         // and then compact the vertex set to remove duplicates
 394         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
 395                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 396                         for (j = 0;j < 3;j++)
 397                                 if (vertonseam[loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j]])
 398                                         loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] += numverts;
 399         // count the usage
 400         // (this uses vertremap to count usage to save some memory)
 401         for (i = 0;i < numverts*2;i++)
 402                 vertremap[i] = 0;
 403         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles*3;i++)
 404                 vertremap[loadmodel->alias.aliasdata_meshes->data_element3i[i]]++;
 405         // build remapping table and compact array
 406         loadmodel->alias.aliasdata_meshes->num_vertices = 0;
 407         for (i = 0;i < numverts*2;i++)
 408         {
 409                 if (vertremap[i])
 410                 {
 411                         vertremap[i] = loadmodel->alias.aliasdata_meshes->num_vertices;
 412                         vertst[loadmodel->alias.aliasdata_meshes->num_vertices*2+0] = vertst[i*2+0];
 413                         vertst[loadmodel->alias.aliasdata_meshes->num_vertices*2+1] = vertst[i*2+1];
 414                         loadmodel->alias.aliasdata_meshes->num_vertices++;
 415                 }
 416                 else
 417                         vertremap[i] = -1; // not used at all
 418         }
 419         // remap the elements to the new vertex set
 420         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles * 3;i++)
 421                 loadmodel->alias.aliasdata_meshes->data_element3i[i] = vertremap[loadmodel->alias.aliasdata_meshes->data_element3i[i]];
 422         // store the texture coordinates
 423         loadmodel->alias.aliasdata_meshes->data_texcoord2f = Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * loadmodel->alias.aliasdata_meshes->num_vertices);
 424         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_vertices;i++)
 425         {
 426                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+0] = vertst[i*2+0];
 427                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+1] = vertst[i*2+1];
 428         }
 429
 430 // load the frames
 431         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 432         loadmodel->alias.aliasdata_meshes->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, sizeof(float[4][3]) * loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices);
 433         loadmodel->alias.aliasdata_meshes->data_aliassvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices * 3 * 1;
 434         loadmodel->alias.aliasdata_meshes->data_aliastvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices * 3 * 2;
 435         loadmodel->alias.aliasdata_meshes->data_aliasnormal3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices * 3 * 3;
 436         Mod_MDL_LoadFrames (startframes, numverts, scale, translate, vertremap);
 437         loadmodel->alias.aliasdata_meshes->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
 438         Mod_BuildTriangleNeighbors(loadmodel->alias.aliasdata_meshes->data_neighbor3i, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles);
 439         Mod_CalcAliasModelBBoxes();
 440
 441         Mem_Free(vertst);
 442         Mem_Free(vertremap);
 443
 444         // load the skins
 445         if ((skinfiles = Mod_LoadSkinFiles()))
 446         {
 447                 loadmodel->alias.aliasdata_meshes->num_skins = totalskins = loadmodel->numskins = Mod_CountSkinFiles(skinfiles);
 448                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 449                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->alias.aliasdata_meshes->data_skins, skinfiles, "default");
 450                 Mod_FreeSkinFiles(skinfiles);
 451                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 452                 for (i = 0;i < loadmodel->numskins;i++)
 453                 {
 454                         loadmodel->skinscenes[i].firstframe = i;
 455                         loadmodel->skinscenes[i].framecount = 1;
 456                         loadmodel->skinscenes[i].loop = true;
 457                         loadmodel->skinscenes[i].framerate = 10;
 458                 }
 459         }
 460         else
 461         {
 462                 loadmodel->alias.aliasdata_meshes->num_skins = totalskins;
 463                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 464                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 465                 totalskins = 0;
 466                 datapointer = startskins;
 467                 for (i = 0;i < loadmodel->numskins;i++)
 468                 {
 469                         pinskintype = (daliasskintype_t *)datapointer;
 470                         datapointer += sizeof(daliasskintype_t);
 471
 472                         if (pinskintype->type == ALIAS_SKIN_SINGLE)
 473                         {
 474                                 groupskins = 1;
 475                                 interval = 0.1f;
 476                         }
 477                         else
 478                         {
 479                                 pinskingroup = (daliasskingroup_t *)datapointer;
 480                                 datapointer += sizeof(daliasskingroup_t);
 481
 482                                 groupskins = LittleLong (pinskingroup->numskins);
 483
 484                                 pinskinintervals = (daliasskininterval_t *)datapointer;
 485                                 datapointer += sizeof(daliasskininterval_t) * groupskins;
 486
 487                                 interval = LittleFloat(pinskinintervals[0].interval);
 488                                 if (interval < 0.01f)
 489                                         Host_Error("Mod_IDP0_Load: invalid interval\n");
 490                         }
 491
 492                         sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 493                         loadmodel->skinscenes[i].firstframe = totalskins;
 494                         loadmodel->skinscenes[i].framecount = groupskins;
 495                         loadmodel->skinscenes[i].framerate = 1.0f / interval;
 496                         loadmodel->skinscenes[i].loop = true;
 497
 498                         for (j = 0;j < groupskins;j++)
 499                         {
 500                                 if (groupskins > 1)
 501                                         sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 502                                 else
 503                                         sprintf (name, "%s_%i", loadmodel->name, i);
 504                                 if (!Mod_LoadSkinFrame(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true))
 505                                         Mod_LoadSkinFrame_Internal(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true, (qbyte *)datapointer, skinwidth, skinheight);
 506                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + totalskins, &tempskinframe);
 507                                 datapointer += skinwidth * skinheight;
 508                                 totalskins++;
 509                         }
 510                 }
 511                 // check for skins that don't exist in the model, but do exist as external images
 512                 // (this was added because yummyluv kept pestering me about support for it)
 513                 while (Mod_LoadSkinFrame(&tempskinframe, va("%s_%i", loadmodel->name, loadmodel->numskins), (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true))
 514                 {
 515                         // expand the arrays to make room
 516                         tempskinscenes = loadmodel->skinscenes;
 517                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 518                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 519                         Mem_Free(tempskinscenes);
 520
 521                         tempaliasskins = loadmodel->alias.aliasdata_meshes->data_skins;
 522                         loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(aliasskin_t));
 523                         memcpy(loadmodel->alias.aliasdata_meshes->data_skins, tempaliasskins, totalskins * sizeof(aliasskin_t));
 524                         Mem_Free(tempaliasskins);
 525
 526                         // store the info about the new skin
 527                         Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + totalskins, &tempskinframe);
 528                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 529                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 530                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 531                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 532                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 533
 534                         //increase skin counts
 535                         loadmodel->alias.aliasdata_meshes->num_skins++;
 536                         loadmodel->numskins++;
 537                         totalskins++;
 538                 }
 539         }
 540 }
 541
 542 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int numverts, int *vertremap)
 543 {
 544         int i;
 545         trivertx_t *in;
 546         for (i = 0;i < numverts;i++, out3f += 3)
 547         {
 548                 in = v + vertremap[i];
 549                 out3f[0] = in->v[0] * scale[0] + translate[0];
 550                 out3f[1] = in->v[1] * scale[1] + translate[1];
 551                 out3f[2] = in->v[2] * scale[2] + translate[2];
 552         }
 553 }
 554
 555 void Mod_IDP2_Load(model_t *mod, void *buffer)
 556 {
 557         int i, j, k, hashindex, num, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end, numverts;
 558         float *stverts, s, t, scale[3], translate[3];
 559         md2_t *pinmodel;
 560         qbyte *base, *datapointer;
 561         md2frame_t *pinframe;
 562         char *inskin;
 563         md2triangle_t *intri;
 564         unsigned short *inst;
 565         struct md2verthash_s
 566         {
 567                 struct md2verthash_s *next;
 568                 int xyz;
 569                 float st[2];
 570         }
 571         *hash, **md2verthash, *md2verthashdata;
 572         skinframe_t tempskinframe;
 573         skinfile_t *skinfiles;
 574
 575         pinmodel = buffer;
 576         base = buffer;
 577
 578         version = LittleLong (pinmodel->version);
 579         if (version != MD2ALIAS_VERSION)
 580                 Host_Error ("%s has wrong version number (%i should be %i)",
 581                         loadmodel->name, version, MD2ALIAS_VERSION);
 582
 583         loadmodel->type = mod_alias;
 584         loadmodel->alias.aliastype = ALIASTYPE_ALIAS;
 585         loadmodel->DrawSky = NULL;
 586         loadmodel->Draw = R_Model_Alias_Draw;
 587         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 588         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 589         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 590
 591         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > (65536 / 3))
 592                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 593         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > 65536)
 594                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 595         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > 65536)
 596                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 597         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > 256)
 598                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 599
 600         end = LittleLong(pinmodel->ofs_end);
 601         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
 602                 Host_Error ("%s is not a valid model", loadmodel->name);
 603         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
 604                 Host_Error ("%s is not a valid model", loadmodel->name);
 605         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
 606                 Host_Error ("%s is not a valid model", loadmodel->name);
 607         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
 608                 Host_Error ("%s is not a valid model", loadmodel->name);
 609         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
 610                 Host_Error ("%s is not a valid model", loadmodel->name);
 611
 612         loadmodel->alias.aliasnum_meshes = 1;
 613         loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, sizeof(aliasmesh_t));
 614
 615         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 616         numxyz = LittleLong(pinmodel->num_xyz);
 617         numst = LittleLong(pinmodel->num_st);
 618         loadmodel->alias.aliasdata_meshes->num_triangles = LittleLong(pinmodel->num_tris);
 619         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 620         loadmodel->alias.aliasdata_meshes->num_frames = loadmodel->numframes;
 621         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 622
 623         loadmodel->flags = 0; // there are no MD2 flags
 624         loadmodel->synctype = ST_RAND;
 625
 626         // load the skins
 627         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 628         if ((skinfiles = Mod_LoadSkinFiles()))
 629         {
 630                 loadmodel->alias.aliasdata_meshes->num_skins = loadmodel->numskins = Mod_CountSkinFiles(skinfiles);
 631                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 632                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->alias.aliasdata_meshes->data_skins, skinfiles, "default");
 633                 Mod_FreeSkinFiles(skinfiles);
 634         }
 635         else if (loadmodel->numskins)
 636         {
 637                 // skins found (most likely not a player model)
 638                 loadmodel->alias.aliasdata_meshes->num_skins = loadmodel->numskins;
 639                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 640                 for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
 641                 {
 642                         Mod_LoadSkinFrame(&tempskinframe, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true);
 643                         Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + i, &tempskinframe);
 644                 }
 645         }
 646         else
 647         {
 648                 // no skins (most likely a player model)
 649                 loadmodel->numskins = 1;
 650                 loadmodel->alias.aliasdata_meshes->num_skins = loadmodel->numskins;
 651                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
 652         }
 653
 654         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 655         for (i = 0;i < loadmodel->numskins;i++)
 656         {
 657                 loadmodel->skinscenes[i].firstframe = i;
 658                 loadmodel->skinscenes[i].framecount = 1;
 659                 loadmodel->skinscenes[i].loop = true;
 660                 loadmodel->skinscenes[i].framerate = 10;
 661         }
 662
 663         // load the triangles and stvert data
 664         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 665         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 666         skinwidth = LittleLong(pinmodel->skinwidth);
 667         skinheight = LittleLong(pinmodel->skinheight);
 668
 669         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 670         s = 1.0f / skinwidth;
 671         t = 1.0f / skinheight;
 672         for (i = 0;i < numst;i++)
 673         {
 674                 j = (unsigned short) LittleShort(inst[i*2+0]);
 675                 k = (unsigned short) LittleShort(inst[i*2+1]);
 676                 if (j >= skinwidth || k >= skinheight)
 677                 {
 678                         Mem_Free(stverts);
 679                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
 680                 }
 681                 stverts[i*2+0] = j * s;
 682                 stverts[i*2+1] = k * t;
 683         }
 684
 685         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 686         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->alias.aliasdata_meshes->num_triangles * 3 * sizeof(*hash));
 687         // swap the triangle list
 688         num = 0;
 689         loadmodel->alias.aliasdata_meshes->data_element3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
 690         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
 691         {
 692                 for (j = 0;j < 3;j++)
 693                 {
 694                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 695                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 696                         if (xyz >= numxyz || st >= numst)
 697                         {
 698                                 Mem_Free(md2verthash);
 699                                 Mem_Free(md2verthashdata);
 700                                 Mem_Free(stverts);
 701                                 if (xyz >= numxyz)
 702                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
 703                                 if (st >= numst)
 704                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
 705                         }
 706                         s = stverts[st*2+0];
 707                         t = stverts[st*2+1];
 708                         hashindex = (xyz * 17 + st) & 255;
 709                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 710                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 711                                         break;
 712                         if (hash == NULL)
 713                         {
 714                                 hash = md2verthashdata + num++;
 715                                 hash->xyz = xyz;
 716                                 hash->st[0] = s;
 717                                 hash->st[1] = t;
 718                                 hash->next = md2verthash[hashindex];
 719                                 md2verthash[hashindex] = hash;
 720                         }
 721                         loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] = (hash - md2verthashdata);
 722                 }
 723         }
 724
 725         Mem_Free(stverts);
 726
 727         numverts = num;
 728         loadmodel->alias.aliasdata_meshes->num_vertices = numverts;
 729         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 730         loadmodel->alias.aliasdata_meshes->data_texcoord2f = Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
 731         for (i = 0;i < num;i++)
 732         {
 733                 hash = md2verthashdata + i;
 734                 vertremap[i] = hash->xyz;
 735                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+0] = hash->st[0];
 736                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+1] = hash->st[1];
 737         }
 738
 739         Mem_Free(md2verthash);
 740         Mem_Free(md2verthashdata);
 741
 742         // load the frames
 743         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 744         loadmodel->alias.aliasdata_meshes->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, numverts * loadmodel->alias.aliasdata_meshes->num_frames * sizeof(float[4][3]));
 745         loadmodel->alias.aliasdata_meshes->data_aliassvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->alias.aliasdata_meshes->num_frames * 3 * 1;
 746         loadmodel->alias.aliasdata_meshes->data_aliastvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->alias.aliasdata_meshes->num_frames * 3 * 2;
 747         loadmodel->alias.aliasdata_meshes->data_aliasnormal3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->alias.aliasdata_meshes->num_frames * 3 * 3;
 748         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_frames;i++)
 749         {
 750                 pinframe = (md2frame_t *)datapointer;
 751                 datapointer += sizeof(md2frame_t);
 752                 for (j = 0;j < 3;j++)
 753                 {
 754                         scale[j] = LittleFloat(pinframe->scale[j]);
 755                         translate[j] = LittleFloat(pinframe->translate[j]);
 756                 }
 757                 Mod_MD2_ConvertVerts(scale, translate, (void *)datapointer, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + i * numverts * 3, numverts, vertremap);
 758                 Mod_BuildTextureVectorsAndNormals(loadmodel->alias.aliasdata_meshes->num_vertices, loadmodel->alias.aliasdata_meshes->num_triangles, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_texcoord2f, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->data_aliassvector3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliastvector3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliasnormal3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3);
 759                 datapointer += numxyz * sizeof(trivertx_t);
 760
 761                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 762                 loadmodel->animscenes[i].firstframe = i;
 763                 loadmodel->animscenes[i].framecount = 1;
 764                 loadmodel->animscenes[i].framerate = 10;
 765                 loadmodel->animscenes[i].loop = true;
 766         }
 767
 768         Mem_Free(vertremap);
 769
 770         loadmodel->alias.aliasdata_meshes->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
 771         Mod_BuildTriangleNeighbors(loadmodel->alias.aliasdata_meshes->data_neighbor3i, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles);
 772         Mod_CalcAliasModelBBoxes();
 773 }
 774
 775 void Mod_IDP3_Load(model_t *mod, void *buffer)
 776 {
 777         int i, j, k, version;
 778         md3modelheader_t *pinmodel;
 779         md3frameinfo_t *pinframe;
 780         md3mesh_t *pinmesh;
 781         md3tag_t *pintag;
 782         aliasmesh_t *mesh;
 783         skinfile_t *skinfiles;
 784
 785         pinmodel = buffer;
 786
 787         if (memcmp(pinmodel->identifier, "IDP3", 4))
 788                 Host_Error ("%s is not a MD3 (IDP3) file\n", loadmodel->name);
 789         version = LittleLong (pinmodel->version);
 790         if (version != MD3VERSION)
 791                 Host_Error ("%s has wrong version number (%i should be %i)",
 792                         loadmodel->name, version, MD3VERSION);
 793
 794         skinfiles = Mod_LoadSkinFiles();
 795         loadmodel->numskins = Mod_CountSkinFiles(skinfiles);
 796         if (loadmodel->numskins < 1)
 797                 loadmodel->numskins = 1;
 798
 799         loadmodel->type = mod_alias;
 800         loadmodel->alias.aliastype = ALIASTYPE_ALIAS;
 801         loadmodel->DrawSky = NULL;
 802         loadmodel->Draw = R_Model_Alias_Draw;
 803         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 804         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 805         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 806         loadmodel->flags = 0;
 807         loadmodel->synctype = ST_RAND;
 808
 809         // set up some global info about the model
 810         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 811         loadmodel->alias.aliasnum_meshes = LittleLong(pinmodel->num_meshes);
 812
 813         // make skinscenes for the skins (no groups)
 814         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 815         for (i = 0;i < loadmodel->numskins;i++)
 816         {
 817                 loadmodel->skinscenes[i].firstframe = i;
 818                 loadmodel->skinscenes[i].framecount = 1;
 819                 loadmodel->skinscenes[i].loop = true;
 820                 loadmodel->skinscenes[i].framerate = 10;
 821         }
 822
 823         // load frameinfo
 824         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 825         for (i = 0, pinframe = (md3frameinfo_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
 826         {
 827                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 828                 loadmodel->animscenes[i].firstframe = i;
 829                 loadmodel->animscenes[i].framecount = 1;
 830                 loadmodel->animscenes[i].framerate = 10;
 831                 loadmodel->animscenes[i].loop = true;
 832         }
 833
 834         // load tags
 835         loadmodel->alias.aliasnum_tagframes = loadmodel->numframes;
 836         loadmodel->alias.aliasnum_tags = LittleLong(pinmodel->num_tags);
 837         loadmodel->alias.aliasdata_tags = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasnum_tagframes * loadmodel->alias.aliasnum_tags * sizeof(aliastag_t));
 838         for (i = 0, pintag = (md3tag_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_tags));i < loadmodel->alias.aliasnum_tagframes * loadmodel->alias.aliasnum_tags;i++, pinframe++)
 839         {
 840                 strcpy(loadmodel->alias.aliasdata_tags[i].name, pintag->name);
 841                 Matrix4x4_CreateIdentity(&loadmodel->alias.aliasdata_tags[i].matrix);
 842                 for (j = 0;j < 3;j++)
 843                 {
 844                         for (k = 0;k < 3;k++)
 845                                 loadmodel->alias.aliasdata_tags[i].matrix.m[k][j] = LittleLong(pintag->rotationmatrix[j * 3 + k]);
 846                         loadmodel->alias.aliasdata_tags[i].matrix.m[j][3] = LittleLong(pintag->origin[j]);
 847                 }
 848         }
 849
 850         // load meshes
 851         loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasnum_meshes * sizeof(aliasmesh_t));
 852         for (i = 0, pinmesh = (md3mesh_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_meshes));i < loadmodel->alias.aliasnum_meshes;i++, pinmesh = (md3mesh_t *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_end)))
 853         {
 854                 if (memcmp(pinmesh->identifier, "IDP3", 4))
 855                         Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)\n");
 856                 mesh = loadmodel->alias.aliasdata_meshes + i;
 857                 mesh->num_skins = loadmodel->numskins;
 858                 mesh->num_frames = LittleLong(pinmesh->num_frames);
 859                 mesh->num_vertices = LittleLong(pinmesh->num_vertices);
 860                 mesh->num_triangles = LittleLong(pinmesh->num_triangles);
 861                 mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(aliasskin_t));
 862                 mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
 863                 mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
 864                 mesh->data_texcoord2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
 865                 mesh->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * mesh->num_frames * sizeof(float[4][3]));
 866                 mesh->data_aliassvector3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 1;
 867                 mesh->data_aliastvector3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 2;
 868                 mesh->data_aliasnormal3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 3;
 869                 for (j = 0;j < mesh->num_triangles * 3;j++)
 870                         mesh->data_element3i[j] = LittleLong(((int *)((qbyte *)pinmesh + pinmesh->lump_elements))[j]);
 871                 for (j = 0;j < mesh->num_vertices;j++)
 872                 {
 873                         mesh->data_texcoord2f[j * 2 + 0] = LittleLong(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 0]);
 874                         mesh->data_texcoord2f[j * 2 + 1] = LittleLong(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 1]);
 875                 }
 876                 for (j = 0;j < mesh->num_vertices * mesh->num_frames;j++)
 877                 {
 878                         mesh->data_aliasvertex3f[j * 3 + 0] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 0]) * (1.0f / 64.0f);
 879                         mesh->data_aliasvertex3f[j * 3 + 1] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 1]) * (1.0f / 64.0f);
 880                         mesh->data_aliasvertex3f[j * 3 + 2] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 2]) * (1.0f / 64.0f);
 881                 }
 882                 for (j = 0;j < mesh->num_frames;j++)
 883                         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);
 884
 885                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
 886                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
 887
 888                 if (LittleLong(pinmesh->num_shaders) >= 1 && ((md3shader_t *)((qbyte *) pinmesh + pinmesh->lump_shaders))->name[0])
 889                         Mod_BuildAliasSkinsFromSkinFiles(mesh->data_skins, skinfiles, ((md3shader_t *)((qbyte *) pinmesh + pinmesh->lump_shaders))->name);
 890         }
 891         Mod_CalcAliasModelBBoxes();
 892         Mod_FreeSkinFiles(skinfiles);
 893 }
 894
 895 extern void R_Model_Zymotic_DrawSky(entity_render_t *ent);
 896 extern void R_Model_Zymotic_Draw(entity_render_t *ent);
 897 extern void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent);
 898 extern void R_Model_Zymotic_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 899 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);
 900 void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer)
 901 {
 902         zymtype1header_t *pinmodel, *pheader;
 903         qbyte *pbase;
 904
 905         pinmodel = (void *)buffer;
 906         pbase = buffer;
 907         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
 908                 Host_Error ("Mod_ZYMOTICMODEL_Load: %s is not a zymotic model\n");
 909         if (BigLong(pinmodel->type) != 1)
 910                 Host_Error ("Mod_ZYMOTICMODEL_Load: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
 911
 912         loadmodel->type = mod_alias;
 913         loadmodel->alias.aliastype = ALIASTYPE_ZYM;
 914         loadmodel->DrawSky = NULL;
 915         loadmodel->Draw = R_Model_Zymotic_Draw;
 916         loadmodel->DrawFakeShadow = NULL;//R_Model_Zymotic_DrawFakeShadow;
 917         loadmodel->DrawShadowVolume = NULL;//R_Model_Zymotic_DrawShadowVolume;
 918         loadmodel->DrawLight = NULL;//R_Model_Zymotic_DrawLight;
 919
 920         // byteswap header
 921         pheader = pinmodel;
 922         pheader->type = BigLong(pinmodel->type);
 923         pheader->filesize = BigLong(pinmodel->filesize);
 924         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
 925         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
 926         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
 927         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
 928         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
 929         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
 930         pheader->radius = BigFloat(pinmodel->radius);
 931         pheader->numverts = loadmodel->alias.zymnum_verts = BigLong(pinmodel->numverts);
 932         pheader->numtris = loadmodel->alias.zymnum_tris = BigLong(pinmodel->numtris);
 933         pheader->numshaders = loadmodel->alias.zymnum_shaders = BigLong(pinmodel->numshaders);
 934         pheader->numbones = loadmodel->alias.zymnum_bones = BigLong(pinmodel->numbones);
 935         pheader->numscenes = loadmodel->alias.zymnum_scenes = BigLong(pinmodel->numscenes);
 936         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
 937         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
 938         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
 939         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
 940         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
 941         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
 942         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
 943         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
 944         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
 945         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
 946         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
 947         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
 948         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
 949         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
 950         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
 951         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
 952         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
 953         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
 954
 955         loadmodel->flags = 0; // there are no flags
 956         loadmodel->numframes = pheader->numscenes;
 957         loadmodel->synctype = ST_SYNC;
 958         //loadmodel->numtris = pheader->numtris;
 959         //loadmodel->numverts = 0;
 960
 961         {
 962                 unsigned int i;
 963                 float modelradius, corner[2];
 964                 // model bbox
 965                 modelradius = pheader->radius;
 966                 for (i = 0;i < 3;i++)
 967                 {
 968                         loadmodel->normalmins[i] = pheader->mins[i];
 969                         loadmodel->normalmaxs[i] = pheader->maxs[i];
 970                         loadmodel->rotatedmins[i] = -modelradius;
 971                         loadmodel->rotatedmaxs[i] = modelradius;
 972                 }
 973                 corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
 974                 corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
 975                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
 976                 if (loadmodel->yawmaxs[0] > modelradius)
 977                         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
 978                 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
 979                 loadmodel->yawmins[2] = loadmodel->normalmins[2];
 980                 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 981                 loadmodel->radius = modelradius;
 982                 loadmodel->radius2 = modelradius * modelradius;
 983         }
 984
 985         {
 986                 // FIXME: add shaders, and make them switchable shader sets and...
 987                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t));
 988                 loadmodel->skinscenes[0].firstframe = 0;
 989                 loadmodel->skinscenes[0].framecount = 1;
 990                 loadmodel->skinscenes[0].loop = true;
 991                 loadmodel->skinscenes[0].framerate = 10;
 992                 loadmodel->numskins = 1;
 993         }
 994
 995         // go through the lumps, swapping things
 996
 997         {
 998                 int i, numposes;
 999                 zymscene_t *scene;
1000         //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
1001                 loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
1002                 scene = (void *) (pheader->lump_scenes.start + pbase);
1003                 numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
1004                 for (i = 0;i < pheader->numscenes;i++)
1005                 {
1006                         memcpy(loadmodel->animscenes[i].name, scene->name, 32);
1007                         loadmodel->animscenes[i].firstframe = BigLong(scene->start);
1008                         loadmodel->animscenes[i].framecount = BigLong(scene->length);
1009                         loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
1010                         loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
1011                         if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
1012                                 Host_Error("Mod_ZYMOTICMODEL_Load: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
1013                         if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
1014                                 Host_Error("Mod_ZYMOTICMODEL_Load: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
1015                         if (loadmodel->animscenes[i].framerate < 0)
1016                                 Host_Error("Mod_ZYMOTICMODEL_Load: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
1017                         scene++;
1018                 }
1019         }
1020
1021         {
1022                 int i;
1023                 float *poses;
1024         //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
1025                 loadmodel->alias.zymdata_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
1026                 poses = (void *) (pheader->lump_poses.start + pbase);
1027                 for (i = 0;i < pheader->lump_poses.length / 4;i++)
1028                         loadmodel->alias.zymdata_poses[i] = BigFloat(poses[i]);
1029         }
1030
1031         {
1032                 int i;
1033                 zymbone_t *bone;
1034         //      zymlump_t lump_bones; // zymbone_t bone[numbones];
1035                 loadmodel->alias.zymdata_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(zymbone_t));
1036                 bone = (void *) (pheader->lump_bones.start + pbase);
1037                 for (i = 0;i < pheader->numbones;i++)
1038                 {
1039                         memcpy(loadmodel->alias.zymdata_bones[i].name, bone[i].name, sizeof(bone[i].name));
1040                         loadmodel->alias.zymdata_bones[i].flags = BigLong(bone[i].flags);
1041                         loadmodel->alias.zymdata_bones[i].parent = BigLong(bone[i].parent);
1042                         if (loadmodel->alias.zymdata_bones[i].parent >= i)
1043                                 Host_Error("Mod_ZYMOTICMODEL_Load: bone[%i].parent >= %i in %s\n", i, i, loadmodel->name);
1044                 }
1045         }
1046
1047         {
1048                 int i, *bonecount;
1049         //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
1050                 loadmodel->alias.zymdata_vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1051                 bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
1052                 for (i = 0;i < pheader->numverts;i++)
1053                 {
1054                         loadmodel->alias.zymdata_vertbonecounts[i] = BigLong(bonecount[i]);
1055                         if (loadmodel->alias.zymdata_vertbonecounts[i] < 1)
1056                                 Host_Error("Mod_ZYMOTICMODEL_Load: bone vertex count < 1 in %s\n", loadmodel->name);
1057                 }
1058         }
1059
1060         {
1061                 int i;
1062                 zymvertex_t *vertdata;
1063         //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
1064                 loadmodel->alias.zymdata_verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
1065                 vertdata = (void *) (pheader->lump_verts.start + pbase);
1066                 for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
1067                 {
1068                         loadmodel->alias.zymdata_verts[i].bonenum = BigLong(vertdata[i].bonenum);
1069                         loadmodel->alias.zymdata_verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
1070                         loadmodel->alias.zymdata_verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
1071                         loadmodel->alias.zymdata_verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
1072                 }
1073         }
1074
1075         {
1076                 int i;
1077                 float *intexcoord2f, *outtexcoord2f;
1078         //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1079                 loadmodel->alias.zymdata_texcoords = outtexcoord2f = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[2]));
1080                 intexcoord2f = (void *) (pheader->lump_texcoords.start + pbase);
1081                 for (i = 0;i < pheader->numverts;i++)
1082                 {
1083                         outtexcoord2f[i*2+0] = BigFloat(intexcoord2f[i*2+0]);
1084                         // flip T coordinate for OpenGL
1085                         outtexcoord2f[i*2+1] = 1 - BigFloat(intexcoord2f[i*2+1]);
1086                 }
1087         }
1088
1089         {
1090                 int i, count, *renderlist, *renderlistend, *outrenderlist;
1091         //      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)
1092                 loadmodel->alias.zymdata_renderlist = Mem_Alloc(loadmodel->mempool, pheader->lump_render.length);
1093                 // byteswap, validate, and swap winding order of tris
1094                 count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1095                 if (pheader->lump_render.length != count)
1096                         Host_Error("Mod_ZYMOTICMODEL_Load: renderlist is wrong size in %s (is %i bytes, should be %i bytes)\n", loadmodel->name, pheader->lump_render.length, count);
1097                 outrenderlist = loadmodel->alias.zymdata_renderlist = Mem_Alloc(loadmodel->mempool, count);
1098                 renderlist = (void *) (pheader->lump_render.start + pbase);
1099                 renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
1100                 for (i = 0;i < pheader->numshaders;i++)
1101                 {
1102                         if (renderlist >= renderlistend)
1103                                 Host_Error("Mod_ZYMOTICMODEL_Load: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1104                         count = BigLong(*renderlist);renderlist++;
1105                         if (renderlist + count * 3 > renderlistend)
1106                                 Host_Error("Mod_ZYMOTICMODEL_Load: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1107                         *outrenderlist++ = count;
1108                         while (count--)
1109                         {
1110                                 outrenderlist[2] = BigLong(renderlist[0]);
1111                                 outrenderlist[1] = BigLong(renderlist[1]);
1112                                 outrenderlist[0] = BigLong(renderlist[2]);
1113                                 if ((unsigned int)outrenderlist[0] >= (unsigned int)pheader->numverts
1114                                  || (unsigned int)outrenderlist[1] >= (unsigned int)pheader->numverts
1115                                  || (unsigned int)outrenderlist[2] >= (unsigned int)pheader->numverts)
1116                                         Host_Error("Mod_ZYMOTICMODEL_Load: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
1117                                 renderlist += 3;
1118                                 outrenderlist += 3;
1119                         }
1120                 }
1121         }
1122
1123         {
1124                 int i;
1125                 char *shadername;
1126         //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1127                 loadmodel->alias.zymdata_textures = Mem_Alloc(loadmodel->mempool, pheader->numshaders * sizeof(rtexture_t *));
1128                 shadername = (void *) (pheader->lump_shaders.start + pbase);
1129                 for (i = 0;i < pheader->numshaders;i++)
1130                         loadmodel->alias.zymdata_textures[i] = loadtextureimage(loadmodel->texturepool, shadername + i * 32, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0));
1131         }
1132
1133         {
1134         //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1135                 loadmodel->alias.zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1136                 memcpy(loadmodel->alias.zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1137         }
1138 }
1139