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 void Mod_Alias_GetMesh_Vertex3f(const model_t *model, const frameblend_t *frameblend, const aliasmesh_t *mesh, float *out3f)
  30 {
  31         if (mesh->num_vertexboneweights)
  32         {
  33                 int i, k, blends;
  34                 aliasvertexboneweight_t *v;
  35                 float *out, *matrix, m[12], bonepose[256][12];
  36                 // vertex weighted skeletal
  37                 // interpolate matrices and concatenate them to their parents
  38                 for (i = 0;i < model->alias.aliasnum_bones;i++)
  39                 {
  40                         for (k = 0;k < 12;k++)
  41                                 m[k] = 0;
  42                         for (blends = 0;blends < 4 && frameblend[blends].lerp > 0;blends++)
  43                         {
  44                                 matrix = model->alias.aliasdata_poses + (frameblend[blends].frame * model->alias.aliasnum_bones + i) * 12;
  45                                 for (k = 0;k < 12;k++)
  46                                         m[k] += matrix[k] * frameblend[blends].lerp;
  47                         }
  48                         if (model->alias.aliasdata_bones[i].parent >= 0)
  49                                 R_ConcatTransforms(bonepose[model->alias.aliasdata_bones[i].parent], m, bonepose[i]);
  50                         else
  51                                 for (k = 0;k < 12;k++)
  52                                         bonepose[i][k] = m[k];
  53                 }
  54                 // blend the vertex bone weights
  55                 memset(out3f, 0, mesh->num_vertices * sizeof(float[3]));
  56                 v = mesh->data_vertexboneweights;
  57                 for (i = 0;i < mesh->num_vertexboneweights;i++, v++)
  58                 {
  59                         out = out3f + v->vertexindex * 3;
  60                         matrix = bonepose[v->boneindex];
  61                         // FIXME: this can very easily be optimized with SSE or 3DNow
  62                         out[0] += v->origin[0] * matrix[0] + v->origin[1] * matrix[1] + v->origin[2] * matrix[ 2] + v->origin[3] * matrix[ 3];
  63                         out[1] += v->origin[0] * matrix[4] + v->origin[1] * matrix[5] + v->origin[2] * matrix[ 6] + v->origin[3] * matrix[ 7];
  64                         out[2] += v->origin[0] * matrix[8] + v->origin[1] * matrix[9] + v->origin[2] * matrix[10] + v->origin[3] * matrix[11];
  65                 }
  66         }
  67         else
  68         {
  69                 int i, vertcount;
  70                 float lerp1, lerp2, lerp3, lerp4;
  71                 const float *vertsbase, *verts1, *verts2, *verts3, *verts4;
  72                 // vertex morph
  73                 vertsbase = mesh->data_morphvertex3f;
  74                 vertcount = mesh->num_vertices;
  75                 verts1 = vertsbase + frameblend[0].frame * vertcount * 3;
  76                 lerp1 = frameblend[0].lerp;
  77                 if (frameblend[1].lerp)
  78                 {
  79                         verts2 = vertsbase + frameblend[1].frame * vertcount * 3;
  80                         lerp2 = frameblend[1].lerp;
  81                         if (frameblend[2].lerp)
  82                         {
  83                                 verts3 = vertsbase + frameblend[2].frame * vertcount * 3;
  84                                 lerp3 = frameblend[2].lerp;
  85                                 if (frameblend[3].lerp)
  86                                 {
  87                                         verts4 = vertsbase + frameblend[3].frame * vertcount * 3;
  88                                         lerp4 = frameblend[3].lerp;
  89                                         for (i = 0;i < vertcount * 3;i++)
  90                                                 VectorMAMAMAM(lerp1, verts1 + i, lerp2, verts2 + i, lerp3, verts3 + i, lerp4, verts4 + i, out3f + i);
  91                                 }
  92                                 else
  93                                         for (i = 0;i < vertcount * 3;i++)
  94                                                 VectorMAMAM(lerp1, verts1 + i, lerp2, verts2 + i, lerp3, verts3 + i, out3f + i);
  95                         }
  96                         else
  97                                 for (i = 0;i < vertcount * 3;i++)
  98                                         VectorMAM(lerp1, verts1 + i, lerp2, verts2 + i, out3f + i);
  99                 }
 100                 else
 101                         memcpy(out3f, verts1, vertcount * sizeof(float[3]));
 102         }
 103 }
 104
 105 static void Mod_Alias_Mesh_CompileFrameZero(aliasmesh_t *mesh)
 106 {
 107         frameblend_t frameblend[4] = {{0, 1}, {0, 0}, {0, 0}, {0, 0}};
 108         mesh->data_basevertex3f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[3][4]));
 109         mesh->data_basesvector3f = mesh->data_basevertex3f + mesh->num_vertices * 3;
 110         mesh->data_basetvector3f = mesh->data_basevertex3f + mesh->num_vertices * 6;
 111         mesh->data_basenormal3f = mesh->data_basevertex3f + mesh->num_vertices * 9;
 112         Mod_Alias_GetMesh_Vertex3f(loadmodel, frameblend, mesh, mesh->data_basevertex3f);
 113         Mod_BuildTextureVectorsAndNormals(mesh->num_vertices, mesh->num_triangles, mesh->data_basevertex3f, mesh->data_texcoord2f, mesh->data_element3i, mesh->data_basesvector3f, mesh->data_basetvector3f, mesh->data_basenormal3f);
 114 }
 115
 116 static void Mod_MDLMD2MD3_TraceBox(model_t *model, int frame, trace_t *trace, const vec3_t boxstartmins, const vec3_t boxstartmaxs, const vec3_t boxendmins, const vec3_t boxendmaxs, int hitsupercontentsmask)
 117 {
 118         int i, framenum;
 119         float segmentmins[3], segmentmaxs[3];
 120         colbrushf_t *thisbrush_start, *thisbrush_end;
 121         matrix4x4_t startmatrix, endmatrix;
 122         memset(trace, 0, sizeof(*trace));
 123         trace->fraction = 1;
 124         trace->realfraction = 1;
 125         trace->hitsupercontentsmask = hitsupercontentsmask;
 126         segmentmins[0] = min(boxstartmins[0], boxendmins[0]);
 127         segmentmins[1] = min(boxstartmins[1], boxendmins[1]);
 128         segmentmins[2] = min(boxstartmins[2], boxendmins[2]);
 129         segmentmaxs[0] = max(boxstartmaxs[0], boxendmaxs[0]);
 130         segmentmaxs[1] = max(boxstartmaxs[1], boxendmaxs[1]);
 131         segmentmaxs[2] = max(boxstartmaxs[2], boxendmaxs[2]);
 132         if (VectorCompare(boxstartmins, boxstartmaxs) && VectorCompare(boxendmins, boxendmaxs))
 133         {
 134                 // line trace
 135                 for (i = 0;i < model->alias.aliasnum_meshes;i++)
 136                 {
 137                         framenum = frame;
 138                         if (framenum < 0 || framenum > model->alias.aliasdata_meshes[i].num_morphframes)
 139                                 framenum = 0;
 140                         if (model->alias.aliasdata_meshes[i].data_morphvertex3f)
 141                                 Collision_TraceLineTriangleMeshFloat(trace, boxstartmins, boxendmins, model->alias.aliasdata_meshes[i].num_triangles, model->alias.aliasdata_meshes[i].data_element3i, model->alias.aliasdata_meshes[i].data_morphvertex3f + framenum * model->alias.aliasdata_meshes[i].num_vertices * 3, SUPERCONTENTS_SOLID, segmentmins, segmentmaxs);
 142                         //else
 143                                 // FIXME!!!  this needs to handle skeletal!
 144                 }
 145         }
 146         else
 147         {
 148                 // box trace, performed as brush trace
 149                 Matrix4x4_CreateIdentity(&startmatrix);
 150                 Matrix4x4_CreateIdentity(&endmatrix);
 151                 thisbrush_start = Collision_BrushForBox(&startmatrix, boxstartmins, boxstartmaxs);
 152                 thisbrush_end = Collision_BrushForBox(&endmatrix, boxendmins, boxendmaxs);
 153                 for (i = 0;i < model->alias.aliasnum_meshes;i++)
 154                 {
 155                         framenum = frame;
 156                         if (framenum < 0 || framenum > model->alias.aliasdata_meshes[i].num_morphframes)
 157                                 framenum = 0;
 158                         if (model->alias.aliasdata_meshes[i].data_morphvertex3f)
 159                                 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, model->alias.aliasdata_meshes[i].num_triangles, model->alias.aliasdata_meshes[i].data_element3i, model->alias.aliasdata_meshes[i].data_morphvertex3f + framenum * model->alias.aliasdata_meshes[i].num_vertices * 3, SUPERCONTENTS_SOLID, segmentmins, segmentmaxs);
 160                         //else
 161                                 // FIXME!!!  this needs to handle skeletal!
 162                 }
 163         }
 164 }
 165
 166 static void Mod_CalcAliasModelBBoxes (void)
 167 {
 168         int vnum, meshnum;
 169         float dist, yawradius, radius;
 170         aliasmesh_t *mesh;
 171         float *v;
 172         VectorClear(loadmodel->normalmins);
 173         VectorClear(loadmodel->normalmaxs);
 174         yawradius = 0;
 175         radius = 0;
 176         for (meshnum = 0, mesh = loadmodel->alias.aliasdata_meshes;meshnum < loadmodel->alias.aliasnum_meshes;meshnum++, mesh++)
 177         {
 178                 for (vnum = 0, v = mesh->data_morphvertex3f;vnum < mesh->num_vertices * mesh->num_morphframes;vnum++, v += 3)
 179                 {
 180                         if (loadmodel->normalmins[0] > v[0]) loadmodel->normalmins[0] = v[0];
 181                         if (loadmodel->normalmins[1] > v[1]) loadmodel->normalmins[1] = v[1];
 182                         if (loadmodel->normalmins[2] > v[2]) loadmodel->normalmins[2] = v[2];
 183                         if (loadmodel->normalmaxs[0] < v[0]) loadmodel->normalmaxs[0] = v[0];
 184                         if (loadmodel->normalmaxs[1] < v[1]) loadmodel->normalmaxs[1] = v[1];
 185                         if (loadmodel->normalmaxs[2] < v[2]) loadmodel->normalmaxs[2] = v[2];
 186                         dist = v[0] * v[0] + v[1] * v[1];
 187                         if (yawradius < dist)
 188                                 yawradius = dist;
 189                         dist += v[2] * v[2];
 190                         if (radius < dist)
 191                                 radius = dist;
 192                 }
 193         }
 194         radius = sqrt(radius);
 195         yawradius = sqrt(yawradius);
 196         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -yawradius;
 197         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = yawradius;
 198         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 199         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 200         loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -radius;
 201         loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = radius;
 202         loadmodel->radius = radius;
 203         loadmodel->radius2 = radius * radius;
 204 }
 205
 206 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int *vertremap)
 207 {
 208         int i, j;
 209         vec3_t temp;
 210         for (i = 0;i < inverts;i++)
 211         {
 212                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
 213                         continue;
 214                 temp[0] = v[i].v[0] * scale[0] + translate[0];
 215                 temp[1] = v[i].v[1] * scale[1] + translate[1];
 216                 temp[2] = v[i].v[2] * scale[2] + translate[2];
 217                 j = vertremap[i]; // not onseam
 218                 if (j >= 0)
 219                         VectorCopy(temp, out3f + j * 3);
 220                 j = vertremap[i+inverts]; // onseam
 221                 if (j >= 0)
 222                         VectorCopy(temp, out3f + j * 3);
 223         }
 224 }
 225
 226 static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, vec3_t scale, vec3_t translate, int *vertremap)
 227 {
 228         int i, f, pose, groupframes;
 229         float interval;
 230         daliasframetype_t *pframetype;
 231         daliasframe_t *pinframe;
 232         daliasgroup_t *group;
 233         daliasinterval_t *intervals;
 234         animscene_t *scene;
 235         pose = 0;
 236         scene = loadmodel->animscenes;
 237         for (f = 0;f < loadmodel->numframes;f++)
 238         {
 239                 pframetype = (daliasframetype_t *)datapointer;
 240                 datapointer += sizeof(daliasframetype_t);
 241                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 242                 {
 243                         // a single frame is still treated as a group
 244                         interval = 0.1f;
 245                         groupframes = 1;
 246                 }
 247                 else
 248                 {
 249                         // read group header
 250                         group = (daliasgroup_t *)datapointer;
 251                         datapointer += sizeof(daliasgroup_t);
 252                         groupframes = LittleLong (group->numframes);
 253
 254                         // intervals (time per frame)
 255                         intervals = (daliasinterval_t *)datapointer;
 256                         datapointer += sizeof(daliasinterval_t) * groupframes;
 257
 258                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 259                         if (interval < 0.01f)
 260                         {
 261                                 Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
 262                                 interval = 0.1f;
 263                         }
 264                 }
 265
 266                 // get scene name from first frame
 267                 pinframe = (daliasframe_t *)datapointer;
 268
 269                 strcpy(scene->name, pinframe->name);
 270                 scene->firstframe = pose;
 271                 scene->framecount = groupframes;
 272                 scene->framerate = 1.0f / interval;
 273                 scene->loop = true;
 274                 scene++;
 275
 276                 // read frames
 277                 for (i = 0;i < groupframes;i++)
 278                 {
 279                         pinframe = (daliasframe_t *)datapointer;
 280                         datapointer += sizeof(daliasframe_t);
 281                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->alias.aliasdata_meshes->data_morphvertex3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, vertremap);
 282                         datapointer += sizeof(trivertx_t) * inverts;
 283                         pose++;
 284                 }
 285         }
 286 }
 287
 288 static skinframe_t missingskinframe;
 289 static void Mod_BuildAliasSkinFromSkinFrame(texture_t *skin, skinframe_t *skinframe)
 290 {
 291         // hack
 292         if (skinframe == NULL)
 293         {
 294                 skinframe = &missingskinframe;
 295                 memset(skinframe, 0, sizeof(*skinframe));
 296                 skinframe->base = r_texture_notexture;
 297         }
 298
 299         skin->skin = *skinframe;
 300 }
 301
 302 static void Mod_BuildAliasSkinsFromSkinFiles(texture_t *skin, skinfile_t *skinfile, char *meshname, char *shadername)
 303 {
 304         int i;
 305         skinfileitem_t *skinfileitem;
 306         skinframe_t tempskinframe;
 307         if (skinfile)
 308         {
 309                 for (i = 0;skinfile;skinfile = skinfile->next, i++, skin++)
 310                 {
 311                         memset(skin, 0, sizeof(*skin));
 312                         for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = skinfileitem->next)
 313                         {
 314                                 // leave the skin unitialized (nodraw) if the replacement is "common/nodraw" or "textures/common/nodraw"
 315                                 if (!strcmp(skinfileitem->name, meshname) && strcmp(skinfileitem->replacement, "common/nodraw") && strcmp(skinfileitem->replacement, "textures/common/nodraw"))
 316                                 {
 317                                         memset(&tempskinframe, 0, sizeof(tempskinframe));
 318                                         if (Mod_LoadSkinFrame(&tempskinframe, skinfileitem->replacement, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, true, false, true))
 319                                                 Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 320                                         else
 321                                         {
 322                                                 Con_Printf("mesh \"%s\": failed to load skin #%i \"%s\", falling back to mesh's internal shader name \"%s\"\n", meshname, i, skinfileitem->replacement, shadername);
 323                                                 if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, true, false, true))
 324                                                         Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 325                                                 else
 326                                                 {
 327                                                         Con_Printf("failed to load skin \"%s\"\n", shadername);
 328                                                         Mod_BuildAliasSkinFromSkinFrame(skin, NULL);
 329                                                 }
 330                                         }
 331                                 }
 332                         }
 333                 }
 334         }
 335         else
 336         {
 337                 memset(&tempskinframe, 0, sizeof(tempskinframe));
 338                 if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, true, false, true))
 339                         Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 340                 else
 341                 {
 342                         Con_Printf("failed to load mesh \"%s\" shader \"%s\"\n", meshname, shadername);
 343                         Mod_BuildAliasSkinFromSkinFrame(skin, NULL);
 344                 }
 345         }
 346 }
 347
 348 #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);
 349 #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);
 350 extern void R_Model_Alias_Draw(entity_render_t *ent);
 351 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist, const vec3_t lightmins, const vec3_t lightmaxs);
 352 extern void R_Model_Alias_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltolight, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz, rtexture_t *lightcubemap, vec_t ambientscale, vec_t diffusescale, vec_t specularscale, int numsurfaces, const int *surfacelist);
 353 void Mod_IDP0_Load(model_t *mod, void *buffer)
 354 {
 355         int i, j, version, totalskins, skinwidth, skinheight, groupframes, groupskins, numverts;
 356         float scales, scalet, scale[3], translate[3], interval;
 357         mdl_t *pinmodel;
 358         stvert_t *pinstverts;
 359         dtriangle_t *pintriangles;
 360         daliasskintype_t *pinskintype;
 361         daliasskingroup_t *pinskingroup;
 362         daliasskininterval_t *pinskinintervals;
 363         daliasframetype_t *pinframetype;
 364         daliasgroup_t *pinframegroup;
 365         qbyte *datapointer, *startframes, *startskins;
 366         char name[MAX_QPATH];
 367         skinframe_t tempskinframe;
 368         animscene_t *tempskinscenes;
 369         texture_t *tempaliasskins;
 370         float *vertst;
 371         int *vertonseam, *vertremap;
 372         skinfile_t *skinfiles;
 373
 374         datapointer = buffer;
 375         pinmodel = (mdl_t *)datapointer;
 376         datapointer += sizeof(mdl_t);
 377
 378         version = LittleLong (pinmodel->version);
 379         if (version != ALIAS_VERSION)
 380                 Host_Error ("%s has wrong version number (%i should be %i)",
 381                                  loadmodel->name, version, ALIAS_VERSION);
 382
 383         loadmodel->type = mod_alias;
 384         loadmodel->DrawSky = NULL;
 385         loadmodel->Draw = R_Model_Alias_Draw;
 386         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 387         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 388         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 389
 390         loadmodel->alias.aliasnum_meshes = 1;
 391         loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, sizeof(aliasmesh_t));
 392
 393         loadmodel->numskins = LittleLong(pinmodel->numskins);
 394         BOUNDI(loadmodel->numskins,0,65536);
 395         skinwidth = LittleLong (pinmodel->skinwidth);
 396         BOUNDI(skinwidth,0,65536);
 397         skinheight = LittleLong (pinmodel->skinheight);
 398         BOUNDI(skinheight,0,65536);
 399         numverts = LittleLong(pinmodel->numverts);
 400         BOUNDI(numverts,0,65536);
 401         loadmodel->alias.aliasdata_meshes->num_triangles = LittleLong(pinmodel->numtris);
 402         BOUNDI(loadmodel->alias.aliasdata_meshes->num_triangles,0,65536);
 403         loadmodel->numframes = LittleLong(pinmodel->numframes);
 404         BOUNDI(loadmodel->numframes,0,65536);
 405         loadmodel->synctype = LittleLong (pinmodel->synctype);
 406         BOUNDI(loadmodel->synctype,0,2);
 407         loadmodel->flags = LittleLong (pinmodel->flags);
 408
 409         for (i = 0;i < 3;i++)
 410         {
 411                 scale[i] = LittleFloat (pinmodel->scale[i]);
 412                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 413         }
 414
 415         startskins = datapointer;
 416         totalskins = 0;
 417         for (i = 0;i < loadmodel->numskins;i++)
 418         {
 419                 pinskintype = (daliasskintype_t *)datapointer;
 420                 datapointer += sizeof(daliasskintype_t);
 421                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 422                         groupskins = 1;
 423                 else
 424                 {
 425                         pinskingroup = (daliasskingroup_t *)datapointer;
 426                         datapointer += sizeof(daliasskingroup_t);
 427                         groupskins = LittleLong(pinskingroup->numskins);
 428                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 429                 }
 430
 431                 for (j = 0;j < groupskins;j++)
 432                 {
 433                         datapointer += skinwidth * skinheight;
 434                         totalskins++;
 435                 }
 436         }
 437
 438         pinstverts = (stvert_t *)datapointer;
 439         datapointer += sizeof(stvert_t) * numverts;
 440
 441         pintriangles = (dtriangle_t *)datapointer;
 442         datapointer += sizeof(dtriangle_t) * loadmodel->alias.aliasdata_meshes->num_triangles;
 443
 444         startframes = datapointer;
 445         loadmodel->alias.aliasdata_meshes->num_morphframes = 0;
 446         for (i = 0;i < loadmodel->numframes;i++)
 447         {
 448                 pinframetype = (daliasframetype_t *)datapointer;
 449                 datapointer += sizeof(daliasframetype_t);
 450                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 451                         groupframes = 1;
 452                 else
 453                 {
 454                         pinframegroup = (daliasgroup_t *)datapointer;
 455                         datapointer += sizeof(daliasgroup_t);
 456                         groupframes = LittleLong(pinframegroup->numframes);
 457                         datapointer += sizeof(daliasinterval_t) * groupframes;
 458                 }
 459
 460                 for (j = 0;j < groupframes;j++)
 461                 {
 462                         datapointer += sizeof(daliasframe_t);
 463                         datapointer += sizeof(trivertx_t) * numverts;
 464                         loadmodel->alias.aliasdata_meshes->num_morphframes++;
 465                 }
 466         }
 467
 468         // store texture coordinates into temporary array, they will be stored
 469         // after usage is determined (triangle data)
 470         vertst = Mem_Alloc(tempmempool, numverts * 2 * sizeof(float[2]));
 471         vertremap = Mem_Alloc(tempmempool, numverts * 3 * sizeof(int));
 472         vertonseam = vertremap + numverts * 2;
 473
 474         scales = 1.0 / skinwidth;
 475         scalet = 1.0 / skinheight;
 476         for (i = 0;i < numverts;i++)
 477         {
 478                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 479                 vertst[i*2+0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 480                 vertst[i*2+1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 481                 vertst[(i+numverts)*2+0] = vertst[i*2+0] + 0.5;
 482                 vertst[(i+numverts)*2+1] = vertst[i*2+1];
 483         }
 484
 485 // load triangle data
 486         loadmodel->alias.aliasdata_meshes->data_element3i = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->alias.aliasdata_meshes->num_triangles);
 487
 488         // read the triangle elements
 489         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
 490                 for (j = 0;j < 3;j++)
 491                         loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] = LittleLong(pintriangles[i].vertindex[j]);
 492         // validate (note numverts is used because this is the original data)
 493         Mod_ValidateElements(loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles, numverts, __FILE__, __LINE__);
 494         // now butcher the elements according to vertonseam and tri->facesfront
 495         // and then compact the vertex set to remove duplicates
 496         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
 497                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 498                         for (j = 0;j < 3;j++)
 499                                 if (vertonseam[loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j]])
 500                                         loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] += numverts;
 501         // count the usage
 502         // (this uses vertremap to count usage to save some memory)
 503         for (i = 0;i < numverts*2;i++)
 504                 vertremap[i] = 0;
 505         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles*3;i++)
 506                 vertremap[loadmodel->alias.aliasdata_meshes->data_element3i[i]]++;
 507         // build remapping table and compact array
 508         loadmodel->alias.aliasdata_meshes->num_vertices = 0;
 509         for (i = 0;i < numverts*2;i++)
 510         {
 511                 if (vertremap[i])
 512                 {
 513                         vertremap[i] = loadmodel->alias.aliasdata_meshes->num_vertices;
 514                         vertst[loadmodel->alias.aliasdata_meshes->num_vertices*2+0] = vertst[i*2+0];
 515                         vertst[loadmodel->alias.aliasdata_meshes->num_vertices*2+1] = vertst[i*2+1];
 516                         loadmodel->alias.aliasdata_meshes->num_vertices++;
 517                 }
 518                 else
 519                         vertremap[i] = -1; // not used at all
 520         }
 521         // remap the elements to the new vertex set
 522         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles * 3;i++)
 523                 loadmodel->alias.aliasdata_meshes->data_element3i[i] = vertremap[loadmodel->alias.aliasdata_meshes->data_element3i[i]];
 524         // store the texture coordinates
 525         loadmodel->alias.aliasdata_meshes->data_texcoord2f = Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * loadmodel->alias.aliasdata_meshes->num_vertices);
 526         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_vertices;i++)
 527         {
 528                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+0] = vertst[i*2+0];
 529                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[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         loadmodel->alias.aliasdata_meshes->data_morphvertex3f = Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * loadmodel->alias.aliasdata_meshes->num_morphframes * loadmodel->alias.aliasdata_meshes->num_vertices);
 535         loadmodel->alias.aliasdata_meshes->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
 536         Mod_MDL_LoadFrames (startframes, numverts, scale, translate, vertremap);
 537         Mod_BuildTriangleNeighbors(loadmodel->alias.aliasdata_meshes->data_neighbor3i, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles);
 538         Mod_CalcAliasModelBBoxes();
 539         Mod_Alias_Mesh_CompileFrameZero(loadmodel->alias.aliasdata_meshes);
 540
 541         Mem_Free(vertst);
 542         Mem_Free(vertremap);
 543
 544         // load the skins
 545         if ((skinfiles = Mod_LoadSkinFiles()))
 546         {
 547                 loadmodel->alias.aliasdata_meshes->num_skins = totalskins = loadmodel->numskins;
 548                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(texture_t));
 549                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->alias.aliasdata_meshes->data_skins, skinfiles, "default", "");
 550                 Mod_FreeSkinFiles(skinfiles);
 551                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 552                 for (i = 0;i < loadmodel->numskins;i++)
 553                 {
 554                         loadmodel->skinscenes[i].firstframe = i;
 555                         loadmodel->skinscenes[i].framecount = 1;
 556                         loadmodel->skinscenes[i].loop = true;
 557                         loadmodel->skinscenes[i].framerate = 10;
 558                 }
 559         }
 560         else
 561         {
 562                 loadmodel->alias.aliasdata_meshes->num_skins = totalskins;
 563                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(texture_t));
 564                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 565                 totalskins = 0;
 566                 datapointer = startskins;
 567                 for (i = 0;i < loadmodel->numskins;i++)
 568                 {
 569                         pinskintype = (daliasskintype_t *)datapointer;
 570                         datapointer += sizeof(daliasskintype_t);
 571
 572                         if (pinskintype->type == ALIAS_SKIN_SINGLE)
 573                         {
 574                                 groupskins = 1;
 575                                 interval = 0.1f;
 576                         }
 577                         else
 578                         {
 579                                 pinskingroup = (daliasskingroup_t *)datapointer;
 580                                 datapointer += sizeof(daliasskingroup_t);
 581
 582                                 groupskins = LittleLong (pinskingroup->numskins);
 583
 584                                 pinskinintervals = (daliasskininterval_t *)datapointer;
 585                                 datapointer += sizeof(daliasskininterval_t) * groupskins;
 586
 587                                 interval = LittleFloat(pinskinintervals[0].interval);
 588                                 if (interval < 0.01f)
 589                                 {
 590                                         Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
 591                                         interval = 0.1f;
 592                                 }
 593                         }
 594
 595                         sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 596                         loadmodel->skinscenes[i].firstframe = totalskins;
 597                         loadmodel->skinscenes[i].framecount = groupskins;
 598                         loadmodel->skinscenes[i].framerate = 1.0f / interval;
 599                         loadmodel->skinscenes[i].loop = true;
 600
 601                         for (j = 0;j < groupskins;j++)
 602                         {
 603                                 if (groupskins > 1)
 604                                         sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 605                                 else
 606                                         sprintf (name, "%s_%i", loadmodel->name, i);
 607                                 if (!Mod_LoadSkinFrame(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA | TEXF_PICMIP, true, false, true))
 608                                         Mod_LoadSkinFrame_Internal(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA | TEXF_PICMIP, true, false, r_fullbrights.integer, (qbyte *)datapointer, skinwidth, skinheight);
 609                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + totalskins, &tempskinframe);
 610                                 datapointer += skinwidth * skinheight;
 611                                 totalskins++;
 612                         }
 613                 }
 614                 // check for skins that don't exist in the model, but do exist as external images
 615                 // (this was added because yummyluv kept pestering me about support for it)
 616                 while (Mod_LoadSkinFrame(&tempskinframe, va("%s_%i", loadmodel->name, loadmodel->numskins), (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA | TEXF_PICMIP, true, false, true))
 617                 {
 618                         // expand the arrays to make room
 619                         tempskinscenes = loadmodel->skinscenes;
 620                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 621                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 622                         Mem_Free(tempskinscenes);
 623
 624                         tempaliasskins = loadmodel->alias.aliasdata_meshes->data_skins;
 625                         loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(texture_t));
 626                         memcpy(loadmodel->alias.aliasdata_meshes->data_skins, tempaliasskins, totalskins * sizeof(texture_t));
 627                         Mem_Free(tempaliasskins);
 628
 629                         // store the info about the new skin
 630                         Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + totalskins, &tempskinframe);
 631                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 632                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 633                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 634                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 635                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 636
 637                         //increase skin counts
 638                         loadmodel->alias.aliasdata_meshes->num_skins++;
 639                         loadmodel->numskins++;
 640                         totalskins++;
 641                 }
 642         }
 643 }
 644
 645 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int numverts, int *vertremap)
 646 {
 647         int i;
 648         trivertx_t *in;
 649         for (i = 0;i < numverts;i++, out3f += 3)
 650         {
 651                 in = v + vertremap[i];
 652                 out3f[0] = in->v[0] * scale[0] + translate[0];
 653                 out3f[1] = in->v[1] * scale[1] + translate[1];
 654                 out3f[2] = in->v[2] * scale[2] + translate[2];
 655         }
 656 }
 657
 658 void Mod_IDP2_Load(model_t *mod, void *buffer)
 659 {
 660         int i, j, k, hashindex, num, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end, numverts;
 661         float *stverts, s, t, scale[3], translate[3];
 662         md2_t *pinmodel;
 663         qbyte *base, *datapointer;
 664         md2frame_t *pinframe;
 665         char *inskin;
 666         md2triangle_t *intri;
 667         unsigned short *inst;
 668         struct md2verthash_s
 669         {
 670                 struct md2verthash_s *next;
 671                 int xyz;
 672                 float st[2];
 673         }
 674         *hash, **md2verthash, *md2verthashdata;
 675         skinframe_t tempskinframe;
 676         skinfile_t *skinfiles;
 677
 678         pinmodel = buffer;
 679         base = buffer;
 680
 681         version = LittleLong (pinmodel->version);
 682         if (version != MD2ALIAS_VERSION)
 683                 Host_Error ("%s has wrong version number (%i should be %i)",
 684                         loadmodel->name, version, MD2ALIAS_VERSION);
 685
 686         loadmodel->type = mod_alias;
 687         loadmodel->DrawSky = NULL;
 688         loadmodel->Draw = R_Model_Alias_Draw;
 689         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 690         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 691         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 692
 693         if (LittleLong(pinmodel->num_tris) < 1 || LittleLong(pinmodel->num_tris) > 65536)
 694                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 695         if (LittleLong(pinmodel->num_xyz) < 1 || LittleLong(pinmodel->num_xyz) > 65536)
 696                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 697         if (LittleLong(pinmodel->num_frames) < 1 || LittleLong(pinmodel->num_frames) > 65536)
 698                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 699         if (LittleLong(pinmodel->num_skins) < 0 || LittleLong(pinmodel->num_skins) > 256)
 700                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 701
 702         end = LittleLong(pinmodel->ofs_end);
 703         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins) <= 0 || LittleLong(pinmodel->ofs_skins) >= end))
 704                 Host_Error ("%s is not a valid model", loadmodel->name);
 705         if (LittleLong(pinmodel->ofs_st) <= 0 || LittleLong(pinmodel->ofs_st) >= end)
 706                 Host_Error ("%s is not a valid model", loadmodel->name);
 707         if (LittleLong(pinmodel->ofs_tris) <= 0 || LittleLong(pinmodel->ofs_tris) >= end)
 708                 Host_Error ("%s is not a valid model", loadmodel->name);
 709         if (LittleLong(pinmodel->ofs_frames) <= 0 || LittleLong(pinmodel->ofs_frames) >= end)
 710                 Host_Error ("%s is not a valid model", loadmodel->name);
 711         if (LittleLong(pinmodel->ofs_glcmds) <= 0 || LittleLong(pinmodel->ofs_glcmds) >= end)
 712                 Host_Error ("%s is not a valid model", loadmodel->name);
 713
 714         loadmodel->alias.aliasnum_meshes = 1;
 715         loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, sizeof(aliasmesh_t));
 716
 717         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 718         numxyz = LittleLong(pinmodel->num_xyz);
 719         numst = LittleLong(pinmodel->num_st);
 720         loadmodel->alias.aliasdata_meshes->num_triangles = LittleLong(pinmodel->num_tris);
 721         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 722         loadmodel->alias.aliasdata_meshes->num_morphframes = loadmodel->numframes;
 723         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 724
 725         loadmodel->flags = 0; // there are no MD2 flags
 726         loadmodel->synctype = ST_RAND;
 727
 728         // load the skins
 729         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 730         if ((skinfiles = Mod_LoadSkinFiles()))
 731         {
 732                 loadmodel->alias.aliasdata_meshes->num_skins = loadmodel->numskins;
 733                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(texture_t));
 734                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->alias.aliasdata_meshes->data_skins, skinfiles, "default", "");
 735                 Mod_FreeSkinFiles(skinfiles);
 736         }
 737         else if (loadmodel->numskins)
 738         {
 739                 // skins found (most likely not a player model)
 740                 loadmodel->alias.aliasdata_meshes->num_skins = loadmodel->numskins;
 741                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(texture_t));
 742                 for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
 743                 {
 744                         if (Mod_LoadSkinFrame(&tempskinframe, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, true, false, true))
 745                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + i, &tempskinframe);
 746                         else
 747                         {
 748                                 Con_Printf("%s is missing skin \"%s\"\n", loadmodel->name, inskin);
 749                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + i, NULL);
 750                         }
 751                 }
 752         }
 753         else
 754         {
 755                 // no skins (most likely a player model)
 756                 loadmodel->numskins = 1;
 757                 loadmodel->alias.aliasdata_meshes->num_skins = loadmodel->numskins;
 758                 loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(texture_t));
 759                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins, NULL);
 760         }
 761
 762         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 763         for (i = 0;i < loadmodel->numskins;i++)
 764         {
 765                 loadmodel->skinscenes[i].firstframe = i;
 766                 loadmodel->skinscenes[i].framecount = 1;
 767                 loadmodel->skinscenes[i].loop = true;
 768                 loadmodel->skinscenes[i].framerate = 10;
 769         }
 770
 771         // load the triangles and stvert data
 772         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 773         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 774         skinwidth = LittleLong(pinmodel->skinwidth);
 775         skinheight = LittleLong(pinmodel->skinheight);
 776
 777         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 778         s = 1.0f / skinwidth;
 779         t = 1.0f / skinheight;
 780         for (i = 0;i < numst;i++)
 781         {
 782                 j = (unsigned short) LittleShort(inst[i*2+0]);
 783                 k = (unsigned short) LittleShort(inst[i*2+1]);
 784                 if (j >= skinwidth || k >= skinheight)
 785                 {
 786                         Con_Printf("%s has an invalid skin coordinate (%i %i) on vert %i, changing to 0 0\n", loadmodel->name, j, k, i);
 787                         j = 0;
 788                         k = 0;
 789                 }
 790                 stverts[i*2+0] = j * s;
 791                 stverts[i*2+1] = k * t;
 792         }
 793
 794         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 795         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->alias.aliasdata_meshes->num_triangles * 3 * sizeof(*hash));
 796         // swap the triangle list
 797         num = 0;
 798         loadmodel->alias.aliasdata_meshes->data_element3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
 799         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
 800         {
 801                 for (j = 0;j < 3;j++)
 802                 {
 803                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 804                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 805                         if (xyz >= numxyz)
 806                         {
 807                                 Con_Printf("%s has an invalid xyz index (%i) on triangle %i, resetting to 0\n", loadmodel->name, xyz, i);
 808                                 xyz = 0;
 809                         }
 810                         if (st >= numst)
 811                         {
 812                                 Con_Printf("%s has an invalid st index (%i) on triangle %i, resetting to 0\n", loadmodel->name, st, i);
 813                                 st = 0;
 814                         }
 815                         s = stverts[st*2+0];
 816                         t = stverts[st*2+1];
 817                         hashindex = (xyz * 17 + st) & 255;
 818                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 819                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 820                                         break;
 821                         if (hash == NULL)
 822                         {
 823                                 hash = md2verthashdata + num++;
 824                                 hash->xyz = xyz;
 825                                 hash->st[0] = s;
 826                                 hash->st[1] = t;
 827                                 hash->next = md2verthash[hashindex];
 828                                 md2verthash[hashindex] = hash;
 829                         }
 830                         loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] = (hash - md2verthashdata);
 831                 }
 832         }
 833
 834         Mem_Free(stverts);
 835
 836         numverts = num;
 837         loadmodel->alias.aliasdata_meshes->num_vertices = numverts;
 838         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 839         loadmodel->alias.aliasdata_meshes->data_texcoord2f = Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
 840         for (i = 0;i < num;i++)
 841         {
 842                 hash = md2verthashdata + i;
 843                 vertremap[i] = hash->xyz;
 844                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+0] = hash->st[0];
 845                 loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+1] = hash->st[1];
 846         }
 847
 848         Mem_Free(md2verthash);
 849         Mem_Free(md2verthashdata);
 850
 851         // load the frames
 852         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 853         loadmodel->alias.aliasdata_meshes->data_morphvertex3f = Mem_Alloc(loadmodel->mempool, numverts * loadmodel->alias.aliasdata_meshes->num_morphframes * sizeof(float[3]));
 854         for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_morphframes;i++)
 855         {
 856                 pinframe = (md2frame_t *)datapointer;
 857                 datapointer += sizeof(md2frame_t);
 858                 for (j = 0;j < 3;j++)
 859                 {
 860                         scale[j] = LittleFloat(pinframe->scale[j]);
 861                         translate[j] = LittleFloat(pinframe->translate[j]);
 862                 }
 863                 Mod_MD2_ConvertVerts(scale, translate, (void *)datapointer, loadmodel->alias.aliasdata_meshes->data_morphvertex3f + i * numverts * 3, numverts, vertremap);
 864                 datapointer += numxyz * sizeof(trivertx_t);
 865
 866                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 867                 loadmodel->animscenes[i].firstframe = i;
 868                 loadmodel->animscenes[i].framecount = 1;
 869                 loadmodel->animscenes[i].framerate = 10;
 870                 loadmodel->animscenes[i].loop = true;
 871         }
 872
 873         Mem_Free(vertremap);
 874
 875         loadmodel->alias.aliasdata_meshes->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
 876         Mod_BuildTriangleNeighbors(loadmodel->alias.aliasdata_meshes->data_neighbor3i, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles);
 877         Mod_CalcAliasModelBBoxes();
 878         Mod_Alias_Mesh_CompileFrameZero(loadmodel->alias.aliasdata_meshes);
 879 }
 880
 881 void Mod_IDP3_Load(model_t *mod, void *buffer)
 882 {
 883         int i, j, k, version;
 884         md3modelheader_t *pinmodel;
 885         md3frameinfo_t *pinframe;
 886         md3mesh_t *pinmesh;
 887         md3tag_t *pintag;
 888         aliasmesh_t *mesh;
 889         skinfile_t *skinfiles;
 890
 891         pinmodel = buffer;
 892
 893         if (memcmp(pinmodel->identifier, "IDP3", 4))
 894                 Host_Error ("%s is not a MD3 (IDP3) file\n", loadmodel->name);
 895         version = LittleLong (pinmodel->version);
 896         if (version != MD3VERSION)
 897                 Host_Error ("%s has wrong version number (%i should be %i)",
 898                         loadmodel->name, version, MD3VERSION);
 899
 900         skinfiles = Mod_LoadSkinFiles();
 901         if (loadmodel->numskins < 1)
 902                 loadmodel->numskins = 1;
 903
 904         loadmodel->type = mod_alias;
 905         loadmodel->DrawSky = NULL;
 906         loadmodel->Draw = R_Model_Alias_Draw;
 907         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 908         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 909         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 910         loadmodel->flags = LittleLong(pinmodel->flags);
 911         loadmodel->synctype = ST_RAND;
 912
 913         // set up some global info about the model
 914         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 915         loadmodel->alias.aliasnum_meshes = LittleLong(pinmodel->num_meshes);
 916
 917         // make skinscenes for the skins (no groups)
 918         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 919         for (i = 0;i < loadmodel->numskins;i++)
 920         {
 921                 loadmodel->skinscenes[i].firstframe = i;
 922                 loadmodel->skinscenes[i].framecount = 1;
 923                 loadmodel->skinscenes[i].loop = true;
 924                 loadmodel->skinscenes[i].framerate = 10;
 925         }
 926
 927         // load frameinfo
 928         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 929         for (i = 0, pinframe = (md3frameinfo_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
 930         {
 931                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 932                 loadmodel->animscenes[i].firstframe = i;
 933                 loadmodel->animscenes[i].framecount = 1;
 934                 loadmodel->animscenes[i].framerate = 10;
 935                 loadmodel->animscenes[i].loop = true;
 936         }
 937
 938         // load tags
 939         loadmodel->alias.aliasnum_tagframes = loadmodel->numframes;
 940         loadmodel->alias.aliasnum_tags = LittleLong(pinmodel->num_tags);
 941         loadmodel->alias.aliasdata_tags = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasnum_tagframes * loadmodel->alias.aliasnum_tags * sizeof(aliastag_t));
 942         for (i = 0, pintag = (md3tag_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_tags));i < loadmodel->alias.aliasnum_tagframes * loadmodel->alias.aliasnum_tags;i++, pintag++)
 943         {
 944                 strcpy(loadmodel->alias.aliasdata_tags[i].name, pintag->name);
 945                 Matrix4x4_CreateIdentity(&loadmodel->alias.aliasdata_tags[i].matrix);
 946                 for (j = 0;j < 3;j++)
 947                 {
 948                         for (k = 0;k < 3;k++)
 949                                 loadmodel->alias.aliasdata_tags[i].matrix.m[j][k] = LittleFloat(pintag->rotationmatrix[k * 3 + j]);
 950                         loadmodel->alias.aliasdata_tags[i].matrix.m[j][3] = LittleFloat(pintag->origin[j]);
 951                 }
 952                 //Con_Printf("model \"%s\" frame #%i tag #%i \"%s\"\n", loadmodel->name, i / loadmodel->alias.aliasnum_tags, i % loadmodel->alias.aliasnum_tags, loadmodel->alias.aliasdata_tags[i].name);
 953         }
 954
 955         // load meshes
 956         loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasnum_meshes * sizeof(aliasmesh_t));
 957         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)))
 958         {
 959                 if (memcmp(pinmesh->identifier, "IDP3", 4))
 960                         Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)\n");
 961                 mesh = loadmodel->alias.aliasdata_meshes + i;
 962                 mesh->num_skins = loadmodel->numskins;
 963                 mesh->num_morphframes = LittleLong(pinmesh->num_frames);
 964                 mesh->num_vertices = LittleLong(pinmesh->num_vertices);
 965                 mesh->num_triangles = LittleLong(pinmesh->num_triangles);
 966                 mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(texture_t));
 967                 mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
 968                 mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
 969                 mesh->data_texcoord2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
 970                 mesh->data_morphvertex3f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * mesh->num_morphframes * sizeof(float[3]));
 971                 for (j = 0;j < mesh->num_triangles * 3;j++)
 972                         mesh->data_element3i[j] = LittleLong(((int *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_elements)))[j]);
 973                 for (j = 0;j < mesh->num_vertices;j++)
 974                 {
 975                         mesh->data_texcoord2f[j * 2 + 0] = LittleFloat(((float *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 0]);
 976                         mesh->data_texcoord2f[j * 2 + 1] = LittleFloat(((float *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 1]);
 977                 }
 978                 for (j = 0;j < mesh->num_vertices * mesh->num_morphframes;j++)
 979                 {
 980                         mesh->data_morphvertex3f[j * 3 + 0] = LittleShort(((short *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 0]) * (1.0f / 64.0f);
 981                         mesh->data_morphvertex3f[j * 3 + 1] = LittleShort(((short *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 1]) * (1.0f / 64.0f);
 982                         mesh->data_morphvertex3f[j * 3 + 2] = LittleShort(((short *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 2]) * (1.0f / 64.0f);
 983                 }
 984
 985                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
 986                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
 987                 Mod_Alias_Mesh_CompileFrameZero(mesh);
 988
 989                 if (LittleLong(pinmesh->num_shaders) >= 1)
 990                         Mod_BuildAliasSkinsFromSkinFiles(mesh->data_skins, skinfiles, pinmesh->name, ((md3shader_t *)((qbyte *) pinmesh + LittleLong(pinmesh->lump_shaders)))->name);
 991                 else
 992                         for (j = 0;j < mesh->num_skins;j++)
 993                                 Mod_BuildAliasSkinFromSkinFrame(mesh->data_skins + j, NULL);
 994         }
 995         Mod_CalcAliasModelBBoxes();
 996         Mod_FreeSkinFiles(skinfiles);
 997 }
 998
 999 void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer)
1000 {
1001         zymtype1header_t *pinmodel, *pheader;
1002         qbyte *pbase;
1003         int i, j, k, l, numposes, *bonecount, *vertbonecounts, count, *renderlist, *renderlistend, *outelements, *remapvertices;
1004         float modelradius, corner[2], *poses, *intexcoord2f, *outtexcoord2f;
1005         zymvertex_t *verts, *vertdata;
1006         zymscene_t *scene;
1007         zymbone_t *bone;
1008         char *shadername;
1009         skinfile_t *skinfiles;
1010         aliasmesh_t *mesh;
1011
1012         pinmodel = (void *)buffer;
1013         pbase = buffer;
1014         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
1015                 Host_Error ("Mod_ZYMOTICMODEL_Load: %s is not a zymotic model\n");
1016         if (BigLong(pinmodel->type) != 1)
1017                 Host_Error ("Mod_ZYMOTICMODEL_Load: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
1018
1019         loadmodel->type = mod_alias;
1020         loadmodel->DrawSky = NULL;
1021         loadmodel->Draw = R_Model_Alias_Draw;
1022         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
1023         loadmodel->DrawLight = R_Model_Alias_DrawLight;
1024         //loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox; // FIXME: implement collisions
1025         loadmodel->flags = 0; // there are no flags on zym models
1026         loadmodel->synctype = ST_RAND;
1027
1028         // byteswap header
1029         pheader = pinmodel;
1030         pheader->type = BigLong(pinmodel->type);
1031         pheader->filesize = BigLong(pinmodel->filesize);
1032         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
1033         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
1034         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
1035         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
1036         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
1037         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
1038         pheader->radius = BigFloat(pinmodel->radius);
1039         pheader->numverts = BigLong(pinmodel->numverts);
1040         pheader->numtris = BigLong(pinmodel->numtris);
1041         pheader->numshaders = BigLong(pinmodel->numshaders);
1042         pheader->numbones = BigLong(pinmodel->numbones);
1043         pheader->numscenes = BigLong(pinmodel->numscenes);
1044         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
1045         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
1046         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
1047         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
1048         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
1049         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
1050         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
1051         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
1052         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
1053         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
1054         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
1055         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
1056         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
1057         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
1058         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
1059         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
1060         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
1061         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
1062
1063         loadmodel->numframes = pheader->numscenes;
1064         loadmodel->alias.aliasnum_meshes = pheader->numshaders;
1065
1066         skinfiles = Mod_LoadSkinFiles();
1067         if (loadmodel->numskins < 1)
1068                 loadmodel->numskins = 1;
1069
1070         // make skinscenes for the skins (no groups)
1071         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
1072         for (i = 0;i < loadmodel->numskins;i++)
1073         {
1074                 loadmodel->skinscenes[i].firstframe = i;
1075                 loadmodel->skinscenes[i].framecount = 1;
1076                 loadmodel->skinscenes[i].loop = true;
1077                 loadmodel->skinscenes[i].framerate = 10;
1078         }
1079
1080         // model bbox
1081         modelradius = pheader->radius;
1082         for (i = 0;i < 3;i++)
1083         {
1084                 loadmodel->normalmins[i] = pheader->mins[i];
1085                 loadmodel->normalmaxs[i] = pheader->maxs[i];
1086                 loadmodel->rotatedmins[i] = -modelradius;
1087                 loadmodel->rotatedmaxs[i] = modelradius;
1088         }
1089         corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
1090         corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
1091         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
1092         if (loadmodel->yawmaxs[0] > modelradius)
1093                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
1094         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
1095         loadmodel->yawmins[2] = loadmodel->normalmins[2];
1096         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
1097         loadmodel->radius = modelradius;
1098         loadmodel->radius2 = modelradius * modelradius;
1099
1100         // go through the lumps, swapping things
1101
1102         //zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
1103         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
1104         scene = (void *) (pheader->lump_scenes.start + pbase);
1105         numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
1106         for (i = 0;i < pheader->numscenes;i++)
1107         {
1108                 memcpy(loadmodel->animscenes[i].name, scene->name, 32);
1109                 loadmodel->animscenes[i].firstframe = BigLong(scene->start);
1110                 loadmodel->animscenes[i].framecount = BigLong(scene->length);
1111                 loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
1112                 loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
1113                 if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
1114                         Host_Error("%s scene->firstframe (%i) >= numposes (%i)\n", loadmodel->name, loadmodel->animscenes[i].firstframe, numposes);
1115                 if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
1116                         Host_Error("%s scene->firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->name, loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
1117                 if (loadmodel->animscenes[i].framerate < 0)
1118                         Host_Error("%s scene->framerate (%f) < 0\n", loadmodel->name, loadmodel->animscenes[i].framerate);
1119                 scene++;
1120         }
1121
1122         //zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
1123         loadmodel->alias.aliasnum_poses = pheader->lump_poses.length / sizeof(float[3][4]);
1124         loadmodel->alias.aliasdata_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
1125         poses = (void *) (pheader->lump_poses.start + pbase);
1126         for (i = 0;i < pheader->lump_poses.length / 4;i++)
1127                 loadmodel->alias.aliasdata_poses[i] = BigFloat(poses[i]);
1128
1129         //zymlump_t lump_bones; // zymbone_t bone[numbones];
1130         loadmodel->alias.aliasnum_bones = pheader->numbones;
1131         loadmodel->alias.aliasdata_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(aliasbone_t));
1132         bone = (void *) (pheader->lump_bones.start + pbase);
1133         for (i = 0;i < pheader->numbones;i++)
1134         {
1135                 memcpy(loadmodel->alias.aliasdata_bones[i].name, bone[i].name, sizeof(bone[i].name));
1136                 loadmodel->alias.aliasdata_bones[i].flags = BigLong(bone[i].flags);
1137                 loadmodel->alias.aliasdata_bones[i].parent = BigLong(bone[i].parent);
1138                 if (loadmodel->alias.aliasdata_bones[i].parent >= i)
1139                         Host_Error("%s bone[%i].parent >= %i\n", loadmodel->name, i, i);
1140         }
1141
1142         //zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
1143         vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1144         bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
1145         for (i = 0;i < pheader->numverts;i++)
1146         {
1147                 vertbonecounts[i] = BigLong(bonecount[i]);
1148                 if (vertbonecounts[i] < 1)
1149                         Host_Error("%s bonecount[%i] < 1\n", loadmodel->name, i);
1150         }
1151
1152         //zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
1153         verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
1154         vertdata = (void *) (pheader->lump_verts.start + pbase);
1155         for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
1156         {
1157                 verts[i].bonenum = BigLong(vertdata[i].bonenum);
1158                 verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
1159                 verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
1160                 verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
1161         }
1162
1163         //zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1164         outtexcoord2f = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[2]));
1165         intexcoord2f = (void *) (pheader->lump_texcoords.start + pbase);
1166         for (i = 0;i < pheader->numverts;i++)
1167         {
1168                 outtexcoord2f[i*2+0] = BigFloat(intexcoord2f[i*2+0]);
1169                 // flip T coordinate for OpenGL
1170                 outtexcoord2f[i*2+1] = 1 - BigFloat(intexcoord2f[i*2+1]);
1171         }
1172
1173         //zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1174         //loadmodel->alias.zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1175         //memcpy(loadmodel->alias.zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1176
1177         loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasnum_meshes * sizeof(aliasmesh_t));
1178
1179         //zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1180         //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)
1181         // byteswap, validate, and swap winding order of tris
1182         count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1183         if (pheader->lump_render.length != count)
1184                 Host_Error("%s renderlist is wrong size (%i bytes, should be %i bytes)\n", loadmodel->name, pheader->lump_render.length, count);
1185         renderlist = (void *) (pheader->lump_render.start + pbase);
1186         renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
1187         for (i = 0;i < loadmodel->alias.aliasnum_meshes;i++)
1188         {
1189                 if (renderlist >= renderlistend)
1190                         Host_Error("%s corrupt renderlist (wrong size)\n", loadmodel->name);
1191                 count = BigLong(*renderlist);renderlist++;
1192                 if (renderlist + count * 3 > renderlistend || (i == pheader->numshaders - 1 && renderlist + count * 3 != renderlistend))
1193                         Host_Error("%s corrupt renderlist (wrong size)\n", loadmodel->name);
1194                 mesh = loadmodel->alias.aliasdata_meshes + i;
1195                 mesh->num_skins = loadmodel->numskins;
1196                 mesh->num_triangles = count;
1197                 mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(texture_t));
1198                 mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1199                 mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1200                 outelements = mesh->data_element3i;
1201                 for (j = 0;j < mesh->num_triangles;j++)
1202                 {
1203                         outelements[2] = BigLong(renderlist[0]);
1204                         outelements[1] = BigLong(renderlist[1]);
1205                         outelements[0] = BigLong(renderlist[2]);
1206                         if ((unsigned int)outelements[0] >= (unsigned int)pheader->numverts
1207                          || (unsigned int)outelements[1] >= (unsigned int)pheader->numverts
1208                          || (unsigned int)outelements[2] >= (unsigned int)pheader->numverts)
1209                                 Host_Error("%s corrupt renderlist (out of bounds index)\n", loadmodel->name);
1210                         renderlist += 3;
1211                         outelements += 3;
1212                 }
1213                 remapvertices = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1214                 mesh->num_vertices = Mod_BuildVertexRemapTableFromElements(mesh->num_triangles * 3, mesh->data_element3i, pheader->numverts, remapvertices);
1215                 for (j = 0;j < mesh->num_triangles * 3;j++)
1216                         mesh->data_element3i[j] = remapvertices[mesh->data_element3i[j]];
1217                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1218                 mesh->data_texcoord2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
1219                 for (j = 0;j < pheader->numverts;j++)
1220                 {
1221                         if (remapvertices[j] >= 0)
1222                         {
1223                                 mesh->data_texcoord2f[remapvertices[j]*2+0] = outtexcoord2f[j*2+0];
1224                                 mesh->data_texcoord2f[remapvertices[j]*2+1] = outtexcoord2f[j*2+1];
1225                         }
1226                 }
1227                 mesh->num_vertexboneweights = 0;
1228                 for (j = 0;j < mesh->num_vertices;j++)
1229                         if (remapvertices[j] >= 0)
1230                                 mesh->num_vertexboneweights += vertbonecounts[remapvertices[j]];
1231                 mesh->data_vertexboneweights = Mem_Alloc(loadmodel->mempool, mesh->num_vertexboneweights * sizeof(aliasvertexboneweight_t));
1232                 mesh->num_vertexboneweights = 0;
1233                 // note this vertexboneweight ordering requires that the remapvertices array is sequential numbers (separated by -1 values for omitted vertices)
1234                 l = 0;
1235                 for (j = 0;j < mesh->num_vertices;j++)
1236                 {
1237                         if (remapvertices[j] < 0)
1238                         {
1239                                 l += vertbonecounts[j];
1240                                 continue;
1241                         }
1242                         for (k = 0;k < vertbonecounts[j];k++)
1243                         {
1244                                 // this format really should have had a per vertexweight weight value...
1245                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].vertexindex = remapvertices[j];
1246                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].boneindex = verts[l].bonenum;
1247                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3] = 1.0f / vertbonecounts[j];
1248                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[0] = verts[l].origin[0] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1249                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[1] = verts[l].origin[1] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1250                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[2] = verts[l].origin[2] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1251                                 mesh->num_vertexboneweights++;
1252                                 l++;
1253                         }
1254                 }
1255
1256                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
1257                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1258                 Mod_Alias_Mesh_CompileFrameZero(mesh);
1259
1260                 // since zym models do not have named sections, reuse their shader
1261                 // name as the section name
1262                 shadername = (char *) (pheader->lump_shaders.start + pbase) + i * 32;
1263                 if (shadername[0])
1264                         Mod_BuildAliasSkinsFromSkinFiles(mesh->data_skins, skinfiles, shadername, shadername);
1265                 else
1266                         for (j = 0;j < mesh->num_skins;j++)
1267                                 Mod_BuildAliasSkinFromSkinFrame(mesh->data_skins + j, NULL);
1268         }
1269
1270         Mem_Free(vertbonecounts);
1271         Mem_Free(verts);
1272         Mem_Free(outtexcoord2f);
1273 }
1274