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         aliasvertex_t *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_aliasvertex;vnum < mesh->num_vertices * mesh->num_frames;vnum++, v++)
  45                 {
  46                         if (loadmodel->normalmins[0] > v->origin[0]) loadmodel->normalmins[0] = v->origin[0];
  47                         if (loadmodel->normalmins[1] > v->origin[1]) loadmodel->normalmins[1] = v->origin[1];
  48                         if (loadmodel->normalmins[2] > v->origin[2]) loadmodel->normalmins[2] = v->origin[2];
  49                         if (loadmodel->normalmaxs[0] < v->origin[0]) loadmodel->normalmaxs[0] = v->origin[0];
  50                         if (loadmodel->normalmaxs[1] < v->origin[1]) loadmodel->normalmaxs[1] = v->origin[1];
  51                         if (loadmodel->normalmaxs[2] < v->origin[2]) loadmodel->normalmaxs[2] = v->origin[2];
  52                         dist = v->origin[0] * v->origin[0] + v->origin[1] * v->origin[1];
  53                         if (yawradius < dist)
  54                                 yawradius = dist;
  55                         dist += v->origin[2] * v->origin[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, aliasvertex_t *out, 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, out[j].origin);
  86                 j = vertremap[i+inverts]; // onseam
  87                 if (j >= 0)
  88                         VectorCopy(temp, out[j].origin);
  89         }
  90 }
  91
  92 static void Mod_BuildAliasVertexTextureVectors(int numverts, aliasvertex_t *vertices, const float *texcoords, float *vertexbuffer, float *svectorsbuffer, float *tvectorsbuffer, float *normalsbuffer, int numtriangles, const int *elements)
  93 {
  94         int i;
  95         for (i = 0;i < numverts;i++)
  96                 VectorCopy(vertices[i].origin, &vertexbuffer[i * 3]);
  97         Mod_BuildTextureVectorsAndNormals(numverts, numtriangles, vertexbuffer, texcoords, elements, svectorsbuffer, tvectorsbuffer, normalsbuffer);
  98         for (i = 0;i < numverts;i++)
  99         {
 100                 vertices[i].normal[0] = normalsbuffer[i * 3 + 0];
 101                 vertices[i].normal[1] = normalsbuffer[i * 3 + 1];
 102                 vertices[i].normal[2] = normalsbuffer[i * 3 + 2];
 103                 vertices[i].svector[0] = svectorsbuffer[i * 3 + 0];
 104                 vertices[i].svector[1] = svectorsbuffer[i * 3 + 1];
 105                 vertices[i].svector[2] = svectorsbuffer[i * 3 + 2];
 106         }
 107 }
 108
 109 static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, int outverts, vec3_t scale, vec3_t translate, float *texcoords, aliasvertex_t *posedata, int numtris, int *elements, int *vertremap)
 110 {
 111         int i, f, pose, groupframes;
 112         float interval, *vertexbuffer, *svectorsbuffer, *tvectorsbuffer, *normalsbuffer;
 113         daliasframetype_t *pframetype;
 114         daliasframe_t *pinframe;
 115         daliasgroup_t *group;
 116         daliasinterval_t *intervals;
 117         animscene_t *scene;
 118         pose = 0;
 119         scene = loadmodel->animscenes;
 120         vertexbuffer = Mem_Alloc(tempmempool, outverts * sizeof(float[3+3+3+3]));
 121         svectorsbuffer = vertexbuffer + outverts * 3;
 122         tvectorsbuffer = svectorsbuffer + outverts * 3;
 123         normalsbuffer = tvectorsbuffer + outverts * 3;
 124         for (f = 0;f < loadmodel->numframes;f++)
 125         {
 126                 pframetype = (daliasframetype_t *)datapointer;
 127                 datapointer += sizeof(daliasframetype_t);
 128                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 129                 {
 130                         // a single frame is still treated as a group
 131                         interval = 0.1f;
 132                         groupframes = 1;
 133                 }
 134                 else
 135                 {
 136                         // read group header
 137                         group = (daliasgroup_t *)datapointer;
 138                         datapointer += sizeof(daliasgroup_t);
 139                         groupframes = LittleLong (group->numframes);
 140
 141                         // intervals (time per frame)
 142                         intervals = (daliasinterval_t *)datapointer;
 143                         datapointer += sizeof(daliasinterval_t) * groupframes;
 144
 145                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 146                         if (interval < 0.01f)
 147                                 Host_Error("Mod_MDL_LoadFrames: invalid interval");
 148                 }
 149
 150                 // get scene name from first frame
 151                 pinframe = (daliasframe_t *)datapointer;
 152
 153                 strcpy(scene->name, pinframe->name);
 154                 scene->firstframe = pose;
 155                 scene->framecount = groupframes;
 156                 scene->framerate = 1.0f / interval;
 157                 scene->loop = true;
 158                 scene++;
 159
 160                 // read frames
 161                 for (i = 0;i < groupframes;i++)
 162                 {
 163                         pinframe = (daliasframe_t *)datapointer;
 164                         datapointer += sizeof(daliasframe_t);
 165                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, posedata + pose * outverts, vertremap);
 166                         Mod_BuildAliasVertexTextureVectors(outverts, posedata + pose * outverts, texcoords, vertexbuffer, svectorsbuffer, tvectorsbuffer, normalsbuffer, numtris, elements);
 167                         datapointer += sizeof(trivertx_t) * inverts;
 168                         pose++;
 169                 }
 170         }
 171         Mem_Free(vertexbuffer);
 172 }
 173
 174 aliaslayer_t mod_alias_layersbuffer[16]; // 7 currently used
 175 void Mod_BuildAliasSkinFromSkinFrame(aliasskin_t *skin, skinframe_t *skinframe)
 176 {
 177         aliaslayer_t *layer;
 178
 179         memset(&mod_alias_layersbuffer, 0, sizeof(mod_alias_layersbuffer));
 180         layer = mod_alias_layersbuffer;
 181         layer->flags = ALIASLAYER_SPECULAR;
 182         layer->texture = skinframe->gloss;
 183         layer->nmap = skinframe->nmap;
 184         layer++;
 185         if (skinframe->merged != NULL)
 186         {
 187                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_COLORMAPPED;
 188                 layer->texture = skinframe->merged;
 189                 layer->nmap = skinframe->nmap;
 190                 layer++;
 191         }
 192         if (skinframe->base != NULL)
 193         {
 194                 layer->flags = ALIASLAYER_DIFFUSE;
 195                 if (skinframe->merged != NULL)
 196                         layer->flags |= ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED;
 197                 layer->texture = skinframe->base;
 198                 layer->nmap = skinframe->nmap;
 199                 layer++;
 200         }
 201         if (skinframe->pants != NULL)
 202         {
 203                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_COLORMAP_PANTS;
 204                 layer->texture = skinframe->pants;
 205                 layer->nmap = skinframe->nmap;
 206                 layer++;
 207         }
 208         if (skinframe->shirt != NULL)
 209         {
 210                 layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_COLORMAP_SHIRT;
 211                 layer->texture = skinframe->shirt;
 212                 layer->nmap = skinframe->nmap;
 213                 layer++;
 214         }
 215
 216         if (skinframe->glow != NULL)
 217         {
 218                 layer->flags = 0;
 219                 layer->texture = skinframe->glow;
 220                 layer++;
 221                 layer->flags = ALIASLAYER_FOG;
 222                 layer->texture = skinframe->fog;
 223                 layer++;
 224         }
 225         else
 226         {
 227                 layer->flags = ALIASLAYER_FOG | ALIASLAYER_FORCEDRAW_IF_FIRSTPASS;
 228                 layer->texture = skinframe->fog;
 229                 layer++;
 230         }
 231
 232         skin->flags = 0;
 233         // fog texture only exists if some pixels are transparent...
 234         if (skinframe->fog != NULL)
 235                 skin->flags |= ALIASSKIN_TRANSPARENT;
 236
 237         skin->num_layers = layer - mod_alias_layersbuffer;
 238         skin->data_layers = Mem_Alloc(loadmodel->mempool, skin->num_layers * sizeof(aliaslayer_t));
 239         memcpy(skin->data_layers, mod_alias_layersbuffer, skin->num_layers * sizeof(aliaslayer_t));
 240 }
 241
 242 void Mod_BuildMDLMD2MeshInfo(int numverts, int numtris, int *elements, float *texcoord2f, aliasvertex_t *posedata)
 243 {
 244         int i;
 245         aliasmesh_t *mesh;
 246
 247         loadmodel->aliasnum_meshes = 1;
 248         mesh = loadmodel->aliasdata_meshes = Mem_Alloc(loadmodel->mempool, loadmodel->aliasnum_meshes * sizeof(aliasmesh_t));
 249         mesh->num_skins = 0;
 250         mesh->num_frames = 0;
 251         for (i = 0;i < loadmodel->numframes;i++)
 252                 mesh->num_frames += loadmodel->animscenes[i].framecount;
 253         for (i = 0;i < loadmodel->numskins;i++)
 254                 mesh->num_skins += loadmodel->skinscenes[i].framecount;
 255         mesh->num_triangles = numtris;
 256         mesh->num_vertices = numverts;
 257         mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(aliasskin_t));
 258         mesh->data_element3i = elements;
 259         mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, numtris * sizeof(int[3]));
 260         Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
 261         Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
 262         mesh->data_texcoord2f = texcoord2f;
 263         mesh->data_aliasvertex = posedata;
 264         for (i = 0;i < mesh->num_skins;i++)
 265                 Mod_BuildAliasSkinFromSkinFrame(mesh->data_skins + i, loadmodel->skinframes + i);
 266         Mod_CalcAliasModelBBoxes();
 267 }
 268
 269 #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);
 270 #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);
 271 extern void R_Model_Alias_Draw(entity_render_t *ent);
 272 extern void R_Model_Alias_DrawFakeShadow(entity_render_t *ent);
 273 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 274 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);
 275 void Mod_LoadQ1AliasModel (model_t *mod, void *buffer)
 276 {
 277         int i, j, version, totalposes, totalskins, skinwidth, skinheight, totalverts, groupframes, groupskins, *elements, numverts, numtris;
 278         float scales, scalet, scale[3], translate[3], interval, *texcoords;
 279         mdl_t *pinmodel;
 280         stvert_t *pinstverts;
 281         dtriangle_t *pintriangles;
 282         daliasskintype_t *pinskintype;
 283         daliasskingroup_t *pinskingroup;
 284         daliasskininterval_t *pinskinintervals;
 285         daliasframetype_t *pinframetype;
 286         daliasgroup_t *pinframegroup;
 287         aliasvertex_t *posedata;
 288         qbyte *datapointer, *startframes, *startskins;
 289         char name[MAX_QPATH];
 290         skinframe_t tempskinframe;
 291         animscene_t *tempskinscenes;
 292         skinframe_t *tempskinframes;
 293         float *vertst;
 294         int *vertonseam, *vertusage, *vertremap, *temptris;
 295
 296         datapointer = buffer;
 297         pinmodel = (mdl_t *)datapointer;
 298         datapointer += sizeof(mdl_t);
 299
 300         version = LittleLong (pinmodel->version);
 301         if (version != ALIAS_VERSION)
 302                 Host_Error ("%s has wrong version number (%i should be %i)",
 303                                  loadmodel->name, version, ALIAS_VERSION);
 304
 305         loadmodel->type = mod_alias;
 306         loadmodel->aliastype = ALIASTYPE_ALIAS;
 307         loadmodel->DrawSky = NULL;
 308         loadmodel->Draw = R_Model_Alias_Draw;
 309         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 310         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 311         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 312
 313         loadmodel->numskins = LittleLong(pinmodel->numskins);
 314         BOUNDI(loadmodel->numskins,0,256);
 315         skinwidth = LittleLong (pinmodel->skinwidth);
 316         BOUNDI(skinwidth,0,4096);
 317         skinheight = LittleLong (pinmodel->skinheight);
 318         BOUNDI(skinheight,0,4096);
 319         numverts = LittleLong(pinmodel->numverts);
 320         BOUNDI(numverts,0,65536);
 321         numtris = LittleLong(pinmodel->numtris);
 322         BOUNDI(numtris,0,65536 / 3); // max elements limit, rather than max triangles limit
 323         loadmodel->numframes = LittleLong(pinmodel->numframes);
 324         BOUNDI(loadmodel->numframes,0,65536);
 325         loadmodel->synctype = LittleLong (pinmodel->synctype);
 326         BOUNDI(loadmodel->synctype,0,2);
 327         loadmodel->flags = LittleLong (pinmodel->flags);
 328
 329         for (i = 0;i < 3;i++)
 330         {
 331                 scale[i] = LittleFloat (pinmodel->scale[i]);
 332                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 333         }
 334
 335         startskins = datapointer;
 336         totalskins = 0;
 337         for (i = 0;i < loadmodel->numskins;i++)
 338         {
 339                 pinskintype = (daliasskintype_t *)datapointer;
 340                 datapointer += sizeof(daliasskintype_t);
 341                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 342                         groupskins = 1;
 343                 else
 344                 {
 345                         pinskingroup = (daliasskingroup_t *)datapointer;
 346                         datapointer += sizeof(daliasskingroup_t);
 347                         groupskins = LittleLong(pinskingroup->numskins);
 348                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 349                 }
 350
 351                 for (j = 0;j < groupskins;j++)
 352                 {
 353                         datapointer += skinwidth * skinheight;
 354                         totalskins++;
 355                 }
 356         }
 357
 358         pinstverts = (stvert_t *)datapointer;
 359         datapointer += sizeof(stvert_t) * numverts;
 360
 361         pintriangles = (dtriangle_t *)datapointer;
 362         datapointer += sizeof(dtriangle_t) * numtris;
 363
 364         startframes = datapointer;
 365         totalposes = 0;
 366         for (i = 0;i < loadmodel->numframes;i++)
 367         {
 368                 pinframetype = (daliasframetype_t *)datapointer;
 369                 datapointer += sizeof(daliasframetype_t);
 370                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 371                         groupframes = 1;
 372                 else
 373                 {
 374                         pinframegroup = (daliasgroup_t *)datapointer;
 375                         datapointer += sizeof(daliasgroup_t);
 376                         groupframes = LittleLong(pinframegroup->numframes);
 377                         datapointer += sizeof(daliasinterval_t) * groupframes;
 378                 }
 379
 380                 for (j = 0;j < groupframes;j++)
 381                 {
 382                         datapointer += sizeof(daliasframe_t);
 383                         datapointer += sizeof(trivertx_t) * numverts;
 384                         totalposes++;
 385                 }
 386         }
 387
 388         // load the skins
 389         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 390         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, totalskins * sizeof(skinframe_t));
 391         totalskins = 0;
 392         datapointer = startskins;
 393         for (i = 0;i < loadmodel->numskins;i++)
 394         {
 395                 pinskintype = (daliasskintype_t *)datapointer;
 396                 datapointer += sizeof(daliasskintype_t);
 397
 398                 if (pinskintype->type == ALIAS_SKIN_SINGLE)
 399                 {
 400                         groupskins = 1;
 401                         interval = 0.1f;
 402                 }
 403                 else
 404                 {
 405                         pinskingroup = (daliasskingroup_t *)datapointer;
 406                         datapointer += sizeof(daliasskingroup_t);
 407
 408                         groupskins = LittleLong (pinskingroup->numskins);
 409
 410                         pinskinintervals = (daliasskininterval_t *)datapointer;
 411                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 412
 413                         interval = LittleFloat(pinskinintervals[0].interval);
 414                         if (interval < 0.01f)
 415                                 Host_Error("Mod_LoadQ1AliasModel: invalid interval\n");
 416                 }
 417
 418                 sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 419                 loadmodel->skinscenes[i].firstframe = totalskins;
 420                 loadmodel->skinscenes[i].framecount = groupskins;
 421                 loadmodel->skinscenes[i].framerate = 1.0f / interval;
 422                 loadmodel->skinscenes[i].loop = true;
 423
 424                 for (j = 0;j < groupskins;j++)
 425                 {
 426                         if (groupskins > 1)
 427                                 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 428                         else
 429                                 sprintf (name, "%s_%i", loadmodel->name, i);
 430                         if (!Mod_LoadSkinFrame(loadmodel->skinframes + totalskins, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true))
 431                                 Mod_LoadSkinFrame_Internal(loadmodel->skinframes + totalskins, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true, (qbyte *)datapointer, skinwidth, skinheight);
 432                         datapointer += skinwidth * skinheight;
 433                         totalskins++;
 434                 }
 435         }
 436         // check for skins that don't exist in the model, but do exist as external images
 437         // (this was added because yummyluv kept pestering me about support for it)
 438         for (;;)
 439         {
 440                 sprintf (name, "%s_%i", loadmodel->name, loadmodel->numskins);
 441                 if (Mod_LoadSkinFrame (&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true))
 442                 {
 443                         // expand the arrays to make room
 444                         tempskinscenes = loadmodel->skinscenes;
 445                         tempskinframes = loadmodel->skinframes;
 446                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 447                         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(skinframe_t));
 448                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 449                         memcpy(loadmodel->skinframes, tempskinframes, totalskins * sizeof(skinframe_t));
 450                         Mem_Free(tempskinscenes);
 451                         Mem_Free(tempskinframes);
 452                         // store the info about the new skin
 453                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 454                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 455                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 456                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 457                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 458                         loadmodel->skinframes[totalskins] = tempskinframe;
 459                         loadmodel->numskins++;
 460                         totalskins++;
 461                 }
 462                 else
 463                         break;
 464         }
 465
 466         // store texture coordinates into temporary array, they will be stored after usage is determined (triangle data)
 467         vertst = Mem_Alloc(tempmempool, numverts * 2 * sizeof(float[2]));
 468         vertonseam = Mem_Alloc(tempmempool, numverts * sizeof(int));
 469         vertusage = Mem_Alloc(tempmempool, numverts * 2 * sizeof(int));
 470         vertremap = Mem_Alloc(tempmempool, numverts * 2 * sizeof(int));
 471         temptris = Mem_Alloc(tempmempool, numtris * sizeof(int[3]));
 472
 473         scales = 1.0 / skinwidth;
 474         scalet = 1.0 / skinheight;
 475         for (i = 0;i < numverts;i++)
 476         {
 477                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 478                 vertst[i*2+0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 479                 vertst[i*2+1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 480                 vertst[(i+numverts)*2+0] = vertst[i*2+0] + 0.5;
 481                 vertst[(i+numverts)*2+1] = vertst[i*2+1];
 482                 vertusage[i] = 0;
 483                 vertusage[i+numverts] = 0;
 484         }
 485
 486 // load triangle data
 487         elements = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * numtris);
 488
 489         // count the vertices used
 490         for (i = 0;i < numverts*2;i++)
 491                 vertusage[i] = 0;
 492         for (i = 0;i < numtris;i++)
 493         {
 494                 temptris[i*3+0] = LittleLong(pintriangles[i].vertindex[0]);
 495                 temptris[i*3+1] = LittleLong(pintriangles[i].vertindex[1]);
 496                 temptris[i*3+2] = LittleLong(pintriangles[i].vertindex[2]);
 497                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 498                 {
 499                         if (vertonseam[temptris[i*3+0]]) temptris[i*3+0] += numverts;
 500                         if (vertonseam[temptris[i*3+1]]) temptris[i*3+1] += numverts;
 501                         if (vertonseam[temptris[i*3+2]]) temptris[i*3+2] += numverts;
 502                 }
 503                 vertusage[temptris[i*3+0]]++;
 504                 vertusage[temptris[i*3+1]]++;
 505                 vertusage[temptris[i*3+2]]++;
 506         }
 507         // build remapping table and compact array
 508         totalverts = 0;
 509         for (i = 0;i < numverts*2;i++)
 510         {
 511                 if (vertusage[i])
 512                 {
 513                         vertremap[i] = totalverts;
 514                         vertst[totalverts*2+0] = vertst[i*2+0];
 515                         vertst[totalverts*2+1] = vertst[i*2+1];
 516                         totalverts++;
 517                 }
 518                 else
 519                         vertremap[i] = -1; // not used at all
 520         }
 521         // remap the triangle references
 522         for (i = 0;i < numtris * 3;i++)
 523                 elements[i] = vertremap[temptris[i]];
 524         // store the texture coordinates
 525         texcoords = Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * totalverts);
 526         for (i = 0;i < totalverts;i++)
 527         {
 528                 texcoords[i*2+0] = vertst[i*2+0];
 529                 texcoords[i*2+1] = vertst[i*2+1];
 530         }
 531
 532 // load the frames
 533         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 534         posedata = Mem_Alloc(loadmodel->mempool, sizeof(aliasvertex_t) * totalposes * totalverts);
 535         Mod_MDL_LoadFrames (startframes, numverts, totalverts, scale, translate, texcoords, posedata, numtris, elements, vertremap);
 536         Mod_BuildMDLMD2MeshInfo(totalverts, numtris, elements, texcoords, posedata);
 537
 538         Mem_Free(vertst);
 539         Mem_Free(vertonseam);
 540         Mem_Free(vertusage);
 541         Mem_Free(vertremap);
 542         Mem_Free(temptris);
 543 }
 544
 545 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, aliasvertex_t *out, int numverts, int *vertremap)
 546 {
 547         int i;
 548         trivertx_t *in;
 549         for (i = 0;i < numverts;i++)
 550         {
 551                 in = v + vertremap[i];
 552                 out[i].origin[0] = in->v[0] * scale[0] + translate[0];
 553                 out[i].origin[1] = in->v[1] * scale[1] + translate[1];
 554                 out[i].origin[2] = in->v[2] * scale[2] + translate[2];
 555         }
 556 }
 557
 558 void Mod_LoadQ2AliasModel (model_t *mod, void *buffer)
 559 {
 560         int i, j, k, hashindex, num, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end, *elements, numverts, numtris;
 561         float *stverts, s, t, scale[3], translate[3], *vertexbuffer, *svectorsbuffer, *tvectorsbuffer, *normalsbuffer, *texcoords;
 562         aliasvertex_t *posedata;
 563         md2_t *pinmodel;
 564         qbyte *base, *datapointer;
 565         md2frame_t *pinframe;
 566         char *inskin;
 567         md2triangle_t *intri;
 568         unsigned short *inst;
 569         struct md2verthash_s
 570         {
 571                 struct md2verthash_s *next;
 572                 int xyz;
 573                 float st[2];
 574         }
 575         *hash, **md2verthash, *md2verthashdata;
 576
 577         pinmodel = buffer;
 578         base = buffer;
 579
 580         version = LittleLong (pinmodel->version);
 581         if (version != MD2ALIAS_VERSION)
 582                 Host_Error ("%s has wrong version number (%i should be %i)",
 583                         loadmodel->name, version, MD2ALIAS_VERSION);
 584
 585         loadmodel->type = mod_alias;
 586         loadmodel->aliastype = ALIASTYPE_ALIAS;
 587         loadmodel->DrawSky = NULL;
 588         loadmodel->Draw = R_Model_Alias_Draw;
 589         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 590         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 591         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 592
 593         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > (65536 / 3))
 594                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 595         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > 65536)
 596                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 597         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > 65536)
 598                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 599         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > 256)
 600                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 601
 602         end = LittleLong(pinmodel->ofs_end);
 603         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
 604                 Host_Error ("%s is not a valid model", loadmodel->name);
 605         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
 606                 Host_Error ("%s is not a valid model", loadmodel->name);
 607         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
 608                 Host_Error ("%s is not a valid model", loadmodel->name);
 609         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
 610                 Host_Error ("%s is not a valid model", loadmodel->name);
 611         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
 612                 Host_Error ("%s is not a valid model", loadmodel->name);
 613
 614         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 615         numxyz = LittleLong(pinmodel->num_xyz);
 616         numst = LittleLong(pinmodel->num_st);
 617         numtris = LittleLong(pinmodel->num_tris);
 618         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 619
 620         loadmodel->flags = 0; // there are no MD2 flags
 621         loadmodel->synctype = ST_RAND;
 622
 623         // load the skins
 624         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 625         if (loadmodel->numskins)
 626         {
 627                 // skins found (most likely not a player model)
 628                 loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, sizeof(skinframe_t) * loadmodel->numskins);
 629                 for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
 630                         Mod_LoadSkinFrame (loadmodel->skinframes + i, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true);
 631         }
 632         else
 633         {
 634                 // no skins (most likely a player model)
 635                 loadmodel->numskins = 1;
 636                 loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, sizeof(skinframe_t) * loadmodel->numskins);
 637         }
 638
 639         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 640         for (i = 0;i < loadmodel->numskins;i++)
 641         {
 642                 loadmodel->skinscenes[i].firstframe = i;
 643                 loadmodel->skinscenes[i].framecount = 1;
 644                 loadmodel->skinscenes[i].loop = true;
 645                 loadmodel->skinscenes[i].framerate = 10;
 646         }
 647
 648         // load the triangles and stvert data
 649         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 650         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 651         skinwidth = LittleLong(pinmodel->skinwidth);
 652         skinheight = LittleLong(pinmodel->skinheight);
 653
 654         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 655         s = 1.0f / skinwidth;
 656         t = 1.0f / skinheight;
 657         for (i = 0;i < numst;i++)
 658         {
 659                 j = (unsigned short) LittleShort(inst[i*2+0]);
 660                 k = (unsigned short) LittleShort(inst[i*2+1]);
 661                 if (j >= skinwidth || k >= skinheight)
 662                 {
 663                         Mem_Free(stverts);
 664                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
 665                 }
 666                 stverts[i*2+0] = j * s;
 667                 stverts[i*2+1] = k * t;
 668         }
 669
 670         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 671         md2verthashdata = Mem_Alloc(tempmempool, numtris * 3 * sizeof(*hash));
 672         // swap the triangle list
 673         num = 0;
 674         elements = Mem_Alloc(loadmodel->mempool, numtris * sizeof(int[3]));
 675         for (i = 0;i < numtris;i++)
 676         {
 677                 for (j = 0;j < 3;j++)
 678                 {
 679                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 680                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 681                         if (xyz >= numxyz || st >= numst)
 682                         {
 683                                 Mem_Free(md2verthash);
 684                                 Mem_Free(md2verthashdata);
 685                                 Mem_Free(stverts);
 686                                 if (xyz >= numxyz)
 687                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
 688                                 if (st >= numst)
 689                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
 690                         }
 691                         s = stverts[st*2+0];
 692                         t = stverts[st*2+1];
 693                         hashindex = (xyz * 17 + st) & 255;
 694                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 695                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 696                                         break;
 697                         if (hash == NULL)
 698                         {
 699                                 hash = md2verthashdata + num++;
 700                                 hash->xyz = xyz;
 701                                 hash->st[0] = s;
 702                                 hash->st[1] = t;
 703                                 hash->next = md2verthash[hashindex];
 704                                 md2verthash[hashindex] = hash;
 705                         }
 706                         elements[i*3+j] = (hash - md2verthashdata);
 707                 }
 708         }
 709
 710         Mem_Free(stverts);
 711
 712         numverts = num;
 713         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 714         texcoords = Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
 715         for (i = 0;i < num;i++)
 716         {
 717                 hash = md2verthashdata + i;
 718                 vertremap[i] = hash->xyz;
 719                 texcoords[i*2+0] = hash->st[0];
 720                 texcoords[i*2+1] = hash->st[1];
 721         }
 722
 723         Mem_Free(md2verthash);
 724         Mem_Free(md2verthashdata);
 725
 726         // load the frames
 727         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 728         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 729         posedata = Mem_Alloc(loadmodel->mempool, numverts * loadmodel->numframes * sizeof(aliasvertex_t));
 730
 731         vertexbuffer = Mem_Alloc(tempmempool, numverts * sizeof(float[3+3+3+3]));
 732         svectorsbuffer = vertexbuffer + numverts * 3;
 733         tvectorsbuffer = svectorsbuffer + numverts * 3;
 734         normalsbuffer = tvectorsbuffer + numverts * 3;
 735         for (i = 0;i < loadmodel->numframes;i++)
 736         {
 737                 pinframe = (md2frame_t *)datapointer;
 738                 datapointer += sizeof(md2frame_t);
 739                 for (j = 0;j < 3;j++)
 740                 {
 741                         scale[j] = LittleFloat(pinframe->scale[j]);
 742                         translate[j] = LittleFloat(pinframe->translate[j]);
 743                 }
 744                 Mod_MD2_ConvertVerts(scale, translate, (void *)datapointer, posedata + i * numverts, numverts, vertremap);
 745                 Mod_BuildAliasVertexTextureVectors(numverts, posedata + i * numverts, texcoords, vertexbuffer, svectorsbuffer, tvectorsbuffer, normalsbuffer, numtris, elements);
 746                 datapointer += numxyz * sizeof(trivertx_t);
 747
 748                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 749                 loadmodel->animscenes[i].firstframe = i;
 750                 loadmodel->animscenes[i].framecount = 1;
 751                 loadmodel->animscenes[i].framerate = 10;
 752                 loadmodel->animscenes[i].loop = true;
 753         }
 754         Mem_Free(vertexbuffer);
 755
 756         Mem_Free(vertremap);
 757
 758         Mod_BuildMDLMD2MeshInfo(numverts, numtris, elements, texcoords, posedata);
 759 }
 760
 761 void Mod_LoadQ3AliasModel(model_t *mod, void *buffer)
 762 {
 763         int i, j, version;
 764         float *vertexbuffer, *svectorsbuffer, *tvectorsbuffer, *normalsbuffer;
 765         md3modelheader_t *pinmodel;
 766         md3frameinfo_t *pinframe;
 767         md3mesh_t *pinmesh;
 768         aliasmesh_t *mesh;
 769         skinframe_t tempskinframe;
 770
 771         pinmodel = buffer;
 772
 773         if (memcmp(pinmodel->identifier, "IDP3", 4))
 774                 Host_Error ("%s is not a MD3 (IDP3) file\n", loadmodel->name);
 775         version = LittleLong (pinmodel->version);
 776         if (version != MD3VERSION)
 777                 Host_Error ("%s has wrong version number (%i should be %i)",
 778                         loadmodel->name, version, MD3VERSION);
 779
 780         loadmodel->type = mod_alias;
 781         loadmodel->aliastype = ALIASTYPE_ALIAS;
 782         loadmodel->DrawSky = NULL;
 783         loadmodel->Draw = R_Model_Alias_Draw;
 784         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 785         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 786         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 787         loadmodel->flags = 0;
 788         loadmodel->synctype = ST_RAND;
 789
 790         // set up some global info about the model
 791         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 792         loadmodel->numskins = 1;
 793         loadmodel->aliasnum_meshes = LittleLong(pinmodel->num_meshes);
 794         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 795         loadmodel->skinscenes[0].firstframe = 0;
 796         loadmodel->skinscenes[0].framecount = 1;
 797         loadmodel->skinscenes[0].loop = true;
 798         loadmodel->skinscenes[0].framerate = 10;
 799
 800         // load frameinfo
 801         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 802         for (i = 0, pinframe = (md3frameinfo_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
 803         {
 804                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 805                 loadmodel->animscenes[i].firstframe = i;
 806                 loadmodel->animscenes[i].framecount = 1;
 807                 loadmodel->animscenes[i].framerate = 10;
 808                 loadmodel->animscenes[i].loop = true;
 809         }
 810
 811         // tags are not loaded yet
 812
 813         // load meshes
 814         loadmodel->aliasdata_meshes = Mem_Alloc(loadmodel->mempool, loadmodel->aliasnum_meshes * sizeof(aliasmesh_t));
 815         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)))
 816         {
 817                 if (memcmp(pinmesh->identifier, "IDP3", 4))
 818                         Host_Error("Mod_LoadQ3AliasModel: invalid mesh identifier (not IDP3)\n");
 819                 mesh = loadmodel->aliasdata_meshes + i;
 820                 mesh->num_skins = loadmodel->numskins;
 821                 mesh->num_frames = LittleLong(pinmesh->num_frames);
 822                 mesh->num_vertices = LittleLong(pinmesh->num_vertices);
 823                 mesh->num_triangles = LittleLong(pinmesh->num_triangles);
 824                 mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(aliasskin_t));
 825                 mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
 826                 mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
 827                 mesh->data_texcoord2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
 828                 mesh->data_aliasvertex = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * mesh->num_frames * sizeof(aliasvertex_t));
 829                 for (j = 0;j < mesh->num_triangles * 3;j++)
 830                         mesh->data_element3i[j] = LittleLong(((int *)((qbyte *)pinmesh + pinmesh->lump_elements))[j]);
 831                 for (j = 0;j < mesh->num_vertices;j++)
 832                 {
 833                         mesh->data_texcoord2f[j * 2 + 0] = LittleLong(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 0]);
 834                         mesh->data_texcoord2f[j * 2 + 1] = LittleLong(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 1]);
 835                 }
 836                 for (j = 0;j < mesh->num_vertices * mesh->num_frames;j++)
 837                 {
 838                         mesh->data_aliasvertex[j].origin[0] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 0]) * (1.0f / 64.0f);
 839                         mesh->data_aliasvertex[j].origin[1] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 1]) * (1.0f / 64.0f);
 840                         mesh->data_aliasvertex[j].origin[2] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 2]) * (1.0f / 64.0f);
 841                 }
 842                 vertexbuffer = Mem_Alloc(tempmempool, mesh->num_vertices * sizeof(float[3+3+3+3]));
 843                 svectorsbuffer = vertexbuffer + mesh->num_vertices * 3;
 844                 tvectorsbuffer = svectorsbuffer + mesh->num_vertices * 3;
 845                 normalsbuffer = tvectorsbuffer + mesh->num_vertices * 3;
 846                 for (j = 0;j < mesh->num_frames;j++)
 847                         Mod_BuildAliasVertexTextureVectors(mesh->num_vertices, mesh->data_aliasvertex + j * mesh->num_vertices, mesh->data_texcoord2f, vertexbuffer, svectorsbuffer, tvectorsbuffer, normalsbuffer, mesh->num_triangles, mesh->data_element3i);
 848                 Mem_Free(vertexbuffer);
 849
 850                 memset(&tempskinframe, 0, sizeof(tempskinframe));
 851                 if (LittleLong(pinmesh->num_shaders) >= 1 && ((md3shader_t *)((qbyte *) pinmesh + pinmesh->lump_shaders))->name[0])
 852                         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);
 853                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
 854                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
 855                 Mod_BuildAliasSkinFromSkinFrame(mesh->data_skins, &tempskinframe);
 856         }
 857         Mod_CalcAliasModelBBoxes();
 858 }
 859
 860 extern void R_Model_Zymotic_DrawSky(entity_render_t *ent);
 861 extern void R_Model_Zymotic_Draw(entity_render_t *ent);
 862 extern void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent);
 863 extern void R_Model_Zymotic_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 864 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);
 865 void Mod_LoadZymoticModel(model_t *mod, void *buffer)
 866 {
 867         zymtype1header_t *pinmodel, *pheader;
 868         qbyte *pbase;
 869
 870         pinmodel = (void *)buffer;
 871         pbase = buffer;
 872         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
 873                 Host_Error ("Mod_LoadZymoticModel: %s is not a zymotic model\n");
 874         if (BigLong(pinmodel->type) != 1)
 875                 Host_Error ("Mod_LoadZymoticModel: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
 876
 877         loadmodel->type = mod_alias;
 878         loadmodel->aliastype = ALIASTYPE_ZYM;
 879         loadmodel->DrawSky = NULL;
 880         loadmodel->Draw = R_Model_Zymotic_Draw;
 881         loadmodel->DrawFakeShadow = NULL;//R_Model_Zymotic_DrawFakeShadow;
 882         loadmodel->DrawShadowVolume = NULL;//R_Model_Zymotic_DrawShadowVolume;
 883         loadmodel->DrawLight = NULL;//R_Model_Zymotic_DrawLight;
 884
 885         // byteswap header
 886         pheader = pinmodel;
 887         pheader->type = BigLong(pinmodel->type);
 888         pheader->filesize = BigLong(pinmodel->filesize);
 889         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
 890         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
 891         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
 892         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
 893         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
 894         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
 895         pheader->radius = BigFloat(pinmodel->radius);
 896         pheader->numverts = loadmodel->zymnum_verts = BigLong(pinmodel->numverts);
 897         pheader->numtris = loadmodel->zymnum_tris = BigLong(pinmodel->numtris);
 898         pheader->numshaders = loadmodel->zymnum_shaders = BigLong(pinmodel->numshaders);
 899         pheader->numbones = loadmodel->zymnum_bones = BigLong(pinmodel->numbones);
 900         pheader->numscenes = loadmodel->zymnum_scenes = BigLong(pinmodel->numscenes);
 901         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
 902         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
 903         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
 904         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
 905         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
 906         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
 907         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
 908         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
 909         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
 910         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
 911         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
 912         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
 913         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
 914         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
 915         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
 916         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
 917         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
 918         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
 919
 920         loadmodel->flags = 0; // there are no flags
 921         loadmodel->numframes = pheader->numscenes;
 922         loadmodel->synctype = ST_SYNC;
 923         //loadmodel->numtris = pheader->numtris;
 924         //loadmodel->numverts = 0;
 925
 926         {
 927                 unsigned int i;
 928                 float modelradius, corner[2];
 929                 // model bbox
 930                 modelradius = pheader->radius;
 931                 for (i = 0;i < 3;i++)
 932                 {
 933                         loadmodel->normalmins[i] = pheader->mins[i];
 934                         loadmodel->normalmaxs[i] = pheader->maxs[i];
 935                         loadmodel->rotatedmins[i] = -modelradius;
 936                         loadmodel->rotatedmaxs[i] = modelradius;
 937                 }
 938                 corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
 939                 corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
 940                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
 941                 if (loadmodel->yawmaxs[0] > modelradius)
 942                         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
 943                 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
 944                 loadmodel->yawmins[2] = loadmodel->normalmins[2];
 945                 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 946                 loadmodel->radius = modelradius;
 947                 loadmodel->radius2 = modelradius * modelradius;
 948         }
 949
 950         {
 951                 // FIXME: add shaders, and make them switchable shader sets and...
 952                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) + sizeof(skinframe_t));
 953                 loadmodel->skinscenes[0].firstframe = 0;
 954                 loadmodel->skinscenes[0].framecount = 1;
 955                 loadmodel->skinscenes[0].loop = true;
 956                 loadmodel->skinscenes[0].framerate = 10;
 957                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + 1);
 958                 loadmodel->numskins = 1;
 959         }
 960
 961         // go through the lumps, swapping things
 962
 963         {
 964                 int i, numposes;
 965                 zymscene_t *scene;
 966         //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
 967                 loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 968                 scene = (void *) (pheader->lump_scenes.start + pbase);
 969                 numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
 970                 for (i = 0;i < pheader->numscenes;i++)
 971                 {
 972                         memcpy(loadmodel->animscenes[i].name, scene->name, 32);
 973                         loadmodel->animscenes[i].firstframe = BigLong(scene->start);
 974                         loadmodel->animscenes[i].framecount = BigLong(scene->length);
 975                         loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
 976                         loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
 977                         if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
 978                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
 979                         if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
 980                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
 981                         if (loadmodel->animscenes[i].framerate < 0)
 982                                 Host_Error("Mod_LoadZymoticModel: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
 983                         scene++;
 984                 }
 985         }
 986
 987         {
 988                 int i;
 989                 float *poses;
 990         //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
 991                 loadmodel->zymdata_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
 992                 poses = (void *) (pheader->lump_poses.start + pbase);
 993                 for (i = 0;i < pheader->lump_poses.length / 4;i++)
 994                         loadmodel->zymdata_poses[i] = BigFloat(poses[i]);
 995         }
 996
 997         {
 998                 int i;
 999                 zymbone_t *bone;
1000         //      zymlump_t lump_bones; // zymbone_t bone[numbones];
1001                 loadmodel->zymdata_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(zymbone_t));
1002                 bone = (void *) (pheader->lump_bones.start + pbase);
1003                 for (i = 0;i < pheader->numbones;i++)
1004                 {
1005                         memcpy(loadmodel->zymdata_bones[i].name, bone[i].name, sizeof(bone[i].name));
1006                         loadmodel->zymdata_bones[i].flags = BigLong(bone[i].flags);
1007                         loadmodel->zymdata_bones[i].parent = BigLong(bone[i].parent);
1008                         if (loadmodel->zymdata_bones[i].parent >= i)
1009                                 Host_Error("Mod_LoadZymoticModel: bone[%i].parent >= %i in %s\n", i, i, loadmodel->name);
1010                 }
1011         }
1012
1013         {
1014                 int i, *bonecount;
1015         //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
1016                 loadmodel->zymdata_vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1017                 bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
1018                 for (i = 0;i < pheader->numverts;i++)
1019                 {
1020                         loadmodel->zymdata_vertbonecounts[i] = BigLong(bonecount[i]);
1021                         if (loadmodel->zymdata_vertbonecounts[i] < 1)
1022                                 Host_Error("Mod_LoadZymoticModel: bone vertex count < 1 in %s\n", loadmodel->name);
1023                 }
1024         }
1025
1026         {
1027                 int i;
1028                 zymvertex_t *vertdata;
1029         //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
1030                 loadmodel->zymdata_verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
1031                 vertdata = (void *) (pheader->lump_verts.start + pbase);
1032                 for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
1033                 {
1034                         loadmodel->zymdata_verts[i].bonenum = BigLong(vertdata[i].bonenum);
1035                         loadmodel->zymdata_verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
1036                         loadmodel->zymdata_verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
1037                         loadmodel->zymdata_verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
1038                 }
1039         }
1040
1041         {
1042                 int i;
1043                 float *intexcoord2f, *outtexcoord2f;
1044         //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1045                 loadmodel->zymdata_texcoords = outtexcoord2f = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[2]));
1046                 intexcoord2f = (void *) (pheader->lump_texcoords.start + pbase);
1047                 for (i = 0;i < pheader->numverts;i++)
1048                 {
1049                         outtexcoord2f[i*2+0] = BigFloat(intexcoord2f[i*2+0]);
1050                         // flip T coordinate for OpenGL
1051                         outtexcoord2f[i*2+1] = 1 - BigFloat(intexcoord2f[i*2+1]);
1052                 }
1053         }
1054
1055         {
1056                 int i, count, *renderlist, *renderlistend, *outrenderlist;
1057         //      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)
1058                 loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, pheader->lump_render.length);
1059                 // byteswap, validate, and swap winding order of tris
1060                 count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1061                 if (pheader->lump_render.length != count)
1062                         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);
1063                 outrenderlist = loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, count);
1064                 renderlist = (void *) (pheader->lump_render.start + pbase);
1065                 renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
1066                 for (i = 0;i < pheader->numshaders;i++)
1067                 {
1068                         if (renderlist >= renderlistend)
1069                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1070                         count = BigLong(*renderlist);renderlist++;
1071                         if (renderlist + count * 3 > renderlistend)
1072                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1073                         *outrenderlist++ = count;
1074                         while (count--)
1075                         {
1076                                 outrenderlist[2] = BigLong(renderlist[0]);
1077                                 outrenderlist[1] = BigLong(renderlist[1]);
1078                                 outrenderlist[0] = BigLong(renderlist[2]);
1079                                 if ((unsigned int)outrenderlist[0] >= (unsigned int)pheader->numverts
1080                                  || (unsigned int)outrenderlist[1] >= (unsigned int)pheader->numverts
1081                                  || (unsigned int)outrenderlist[2] >= (unsigned int)pheader->numverts)
1082                                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
1083                                 renderlist += 3;
1084                                 outrenderlist += 3;
1085                         }
1086                 }
1087         }
1088
1089         {
1090                 int i;
1091                 char *shadername;
1092         //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1093                 loadmodel->zymdata_textures = Mem_Alloc(loadmodel->mempool, pheader->numshaders * sizeof(rtexture_t *));
1094                 shadername = (void *) (pheader->lump_shaders.start + pbase);
1095                 for (i = 0;i < pheader->numshaders;i++)
1096                         loadmodel->zymdata_textures[i] = loadtextureimage(loadmodel->texturepool, shadername + i * 32, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0));
1097         }
1098
1099         {
1100         //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1101                 loadmodel->zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1102                 memcpy(loadmodel->zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1103         }
1104 }