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 surfmesh_t *mesh, float *out3f)
  30 {
  31         if (mesh->num_vertexboneweights)
  32         {
  33                 int i, k, blends;
  34                 surfmeshvertexboneweight_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->num_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->data_poses + (frameblend[blends].frame * model->num_bones + i) * 12;
  45                                 for (k = 0;k < 12;k++)
  46                                         m[k] += matrix[k] * frameblend[blends].lerp;
  47                         }
  48                         if (model->data_bones[i].parent >= 0)
  49                                 R_ConcatTransforms(bonepose[model->data_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                 if (!mesh->data_morphvertex3f)
  74                         Host_Error("model %s has no skeletal or vertex morph animation data\n", model->name);
  75                 vertsbase = mesh->data_morphvertex3f;
  76                 vertcount = mesh->num_vertices;
  77                 verts1 = vertsbase + frameblend[0].frame * vertcount * 3;
  78                 lerp1 = frameblend[0].lerp;
  79                 if (frameblend[1].lerp)
  80                 {
  81                         verts2 = vertsbase + frameblend[1].frame * vertcount * 3;
  82                         lerp2 = frameblend[1].lerp;
  83                         if (frameblend[2].lerp)
  84                         {
  85                                 verts3 = vertsbase + frameblend[2].frame * vertcount * 3;
  86                                 lerp3 = frameblend[2].lerp;
  87                                 if (frameblend[3].lerp)
  88                                 {
  89                                         verts4 = vertsbase + frameblend[3].frame * vertcount * 3;
  90                                         lerp4 = frameblend[3].lerp;
  91                                         for (i = 0;i < vertcount * 3;i++)
  92                                                 VectorMAMAMAM(lerp1, verts1 + i, lerp2, verts2 + i, lerp3, verts3 + i, lerp4, verts4 + i, out3f + i);
  93                                 }
  94                                 else
  95                                         for (i = 0;i < vertcount * 3;i++)
  96                                                 VectorMAMAM(lerp1, verts1 + i, lerp2, verts2 + i, lerp3, verts3 + i, out3f + i);
  97                         }
  98                         else
  99                                 for (i = 0;i < vertcount * 3;i++)
 100                                         VectorMAM(lerp1, verts1 + i, lerp2, verts2 + i, out3f + i);
 101                 }
 102                 else
 103                         memcpy(out3f, verts1, vertcount * sizeof(float[3]));
 104         }
 105 }
 106
 107 int Mod_Alias_GetTagMatrix(const model_t *model, int poseframe, int tagindex, matrix4x4_t *outmatrix)
 108 {
 109         const float *boneframe;
 110         float tempbonematrix[12], bonematrix[12];
 111         Matrix4x4_CreateIdentity(outmatrix);
 112         if (model->num_bones)
 113         {
 114                 if (tagindex < 0 || tagindex >= model->num_bones)
 115                         return 4;
 116                 if (poseframe >= model->num_poses)
 117                         return 6;
 118                 boneframe = model->data_poses + poseframe * model->num_bones * 12;
 119                 memcpy(bonematrix, boneframe + tagindex * 12, sizeof(float[12]));
 120                 while (model->data_bones[tagindex].parent >= 0)
 121                 {
 122                         memcpy(tempbonematrix, bonematrix, sizeof(float[12]));
 123                         R_ConcatTransforms(boneframe + model->data_bones[tagindex].parent * 12, tempbonematrix, bonematrix);
 124                         tagindex = model->data_bones[tagindex].parent;
 125                 }
 126                 outmatrix->m[0][0] = bonematrix[0];
 127                 outmatrix->m[0][1] = bonematrix[1];
 128                 outmatrix->m[0][2] = bonematrix[2];
 129                 outmatrix->m[0][3] = bonematrix[3];
 130                 outmatrix->m[1][0] = bonematrix[4];
 131                 outmatrix->m[1][1] = bonematrix[5];
 132                 outmatrix->m[1][2] = bonematrix[6];
 133                 outmatrix->m[1][3] = bonematrix[7];
 134                 outmatrix->m[2][0] = bonematrix[8];
 135                 outmatrix->m[2][1] = bonematrix[9];
 136                 outmatrix->m[2][2] = bonematrix[10];
 137                 outmatrix->m[2][3] = bonematrix[11];
 138                 outmatrix->m[3][0] = 0;
 139                 outmatrix->m[3][1] = 0;
 140                 outmatrix->m[3][2] = 0;
 141                 outmatrix->m[3][3] = 1;
 142         }
 143         else if (model->num_tags)
 144         {
 145                 if (tagindex < 0 || tagindex >= model->num_tags)
 146                         return 4;
 147                 if (poseframe >= model->num_tagframes)
 148                         return 6;
 149                 *outmatrix = model->data_tags[poseframe * model->num_tags + tagindex].matrix;
 150         }
 151         return 0;
 152 }
 153
 154 int Mod_Alias_GetTagIndexForName(const model_t *model, unsigned int skin, const char *tagname)
 155 {
 156         int i;
 157         if (model->data_overridetagnamesforskin && skin < (unsigned int)model->numskins && model->data_overridetagnamesforskin[(unsigned int)skin].num_overridetagnames)
 158                 for (i = 0;i < model->data_overridetagnamesforskin[skin].num_overridetagnames;i++)
 159                         if (!strcasecmp(tagname, model->data_overridetagnamesforskin[skin].data_overridetagnames[i].name))
 160                                 return i + 1;
 161         if (model->num_bones)
 162                 for (i = 0;i < model->num_bones;i++)
 163                         if (!strcasecmp(tagname, model->data_bones[i].name))
 164                                 return i + 1;
 165         if (model->num_tags)
 166                 for (i = 0;i < model->num_tags;i++)
 167                         if (!strcasecmp(tagname, model->data_tags[i].name))
 168                                 return i + 1;
 169         return 0;
 170 }
 171
 172 static void Mod_Alias_Mesh_CompileFrameZero(surfmesh_t *mesh)
 173 {
 174         frameblend_t frameblend[4] = {{0, 1}, {0, 0}, {0, 0}, {0, 0}};
 175         mesh->data_vertex3f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[3][4]));
 176         mesh->data_svector3f = mesh->data_vertex3f + mesh->num_vertices * 3;
 177         mesh->data_tvector3f = mesh->data_vertex3f + mesh->num_vertices * 6;
 178         mesh->data_normal3f = mesh->data_vertex3f + mesh->num_vertices * 9;
 179         Mod_Alias_GetMesh_Vertex3f(loadmodel, frameblend, mesh, mesh->data_vertex3f);
 180         Mod_BuildTextureVectorsAndNormals(0, mesh->num_vertices, mesh->num_triangles, mesh->data_vertex3f, mesh->data_texcoordtexture2f, mesh->data_element3i, mesh->data_svector3f, mesh->data_tvector3f, mesh->data_normal3f);
 181 }
 182
 183 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)
 184 {
 185         int i, linetrace;
 186         float segmentmins[3], segmentmaxs[3];
 187         frameblend_t frameblend[4];
 188         msurface_t *surface;
 189         surfmesh_t *mesh;
 190         colbrushf_t *thisbrush_start = NULL, *thisbrush_end = NULL;
 191         matrix4x4_t startmatrix, endmatrix;
 192         memset(trace, 0, sizeof(*trace));
 193         trace->fraction = 1;
 194         trace->realfraction = 1;
 195         trace->hitsupercontentsmask = hitsupercontentsmask;
 196         segmentmins[0] = min(boxstartmins[0], boxendmins[0]);
 197         segmentmins[1] = min(boxstartmins[1], boxendmins[1]);
 198         segmentmins[2] = min(boxstartmins[2], boxendmins[2]);
 199         segmentmaxs[0] = max(boxstartmaxs[0], boxendmaxs[0]);
 200         segmentmaxs[1] = max(boxstartmaxs[1], boxendmaxs[1]);
 201         segmentmaxs[2] = max(boxstartmaxs[2], boxendmaxs[2]);
 202         linetrace = VectorCompare(boxstartmins, boxstartmaxs) && VectorCompare(boxendmins, boxendmaxs);
 203         if (!linetrace)
 204         {
 205                 // box trace, performed as brush trace
 206                 Matrix4x4_CreateIdentity(&startmatrix);
 207                 Matrix4x4_CreateIdentity(&endmatrix);
 208                 thisbrush_start = Collision_BrushForBox(&startmatrix, boxstartmins, boxstartmaxs);
 209                 thisbrush_end = Collision_BrushForBox(&endmatrix, boxendmins, boxendmaxs);
 210         }
 211         memset(frameblend, 0, sizeof(frameblend));
 212         frameblend[0].frame = frame;
 213         frameblend[0].lerp = 1;
 214         for (i = 0, surface = model->data_surfaces;i < model->num_surfaces;i++, surface++)
 215         {
 216                 mesh = surface->groupmesh;
 217                 Mod_Alias_GetMesh_Vertex3f(model, frameblend, mesh, varray_vertex3f);
 218                 if (linetrace)
 219                         Collision_TraceLineTriangleMeshFloat(trace, boxstartmins, boxendmins, mesh->num_triangles, mesh->data_element3i, varray_vertex3f, SUPERCONTENTS_SOLID, segmentmins, segmentmaxs);
 220                 else
 221                         Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, mesh->num_triangles, mesh->data_element3i, varray_vertex3f, SUPERCONTENTS_SOLID, segmentmins, segmentmaxs);
 222         }
 223 }
 224
 225 static void Mod_CalcAliasModelBBoxes (void)
 226 {
 227         int vnum, meshnum;
 228         float dist, yawradius, radius;
 229         surfmesh_t *mesh;
 230         float *v;
 231         VectorClear(loadmodel->normalmins);
 232         VectorClear(loadmodel->normalmaxs);
 233         yawradius = 0;
 234         radius = 0;
 235         for (meshnum = 0;meshnum < loadmodel->num_surfaces;meshnum++)
 236         {
 237                 mesh = loadmodel->meshlist[meshnum];
 238                 for (vnum = 0, v = mesh->data_morphvertex3f;vnum < mesh->num_vertices * mesh->num_morphframes;vnum++, v += 3)
 239                 {
 240                         if (loadmodel->normalmins[0] > v[0]) loadmodel->normalmins[0] = v[0];
 241                         if (loadmodel->normalmins[1] > v[1]) loadmodel->normalmins[1] = v[1];
 242                         if (loadmodel->normalmins[2] > v[2]) loadmodel->normalmins[2] = v[2];
 243                         if (loadmodel->normalmaxs[0] < v[0]) loadmodel->normalmaxs[0] = v[0];
 244                         if (loadmodel->normalmaxs[1] < v[1]) loadmodel->normalmaxs[1] = v[1];
 245                         if (loadmodel->normalmaxs[2] < v[2]) loadmodel->normalmaxs[2] = v[2];
 246                         dist = v[0] * v[0] + v[1] * v[1];
 247                         if (yawradius < dist)
 248                                 yawradius = dist;
 249                         dist += v[2] * v[2];
 250                         if (radius < dist)
 251                                 radius = dist;
 252                 }
 253         }
 254         radius = sqrt(radius);
 255         yawradius = sqrt(yawradius);
 256         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -yawradius;
 257         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = yawradius;
 258         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 259         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 260         loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -radius;
 261         loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = radius;
 262         loadmodel->radius = radius;
 263         loadmodel->radius2 = radius * radius;
 264 }
 265
 266 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int *vertremap)
 267 {
 268         int i, j;
 269         vec3_t temp;
 270         for (i = 0;i < inverts;i++)
 271         {
 272                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
 273                         continue;
 274                 temp[0] = v[i].v[0] * scale[0] + translate[0];
 275                 temp[1] = v[i].v[1] * scale[1] + translate[1];
 276                 temp[2] = v[i].v[2] * scale[2] + translate[2];
 277                 j = vertremap[i]; // not onseam
 278                 if (j >= 0)
 279                         VectorCopy(temp, out3f + j * 3);
 280                 j = vertremap[i+inverts]; // onseam
 281                 if (j >= 0)
 282                         VectorCopy(temp, out3f + j * 3);
 283         }
 284 }
 285
 286 static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, vec3_t scale, vec3_t translate, int *vertremap)
 287 {
 288         int i, f, pose, groupframes;
 289         float interval;
 290         daliasframetype_t *pframetype;
 291         daliasframe_t *pinframe;
 292         daliasgroup_t *group;
 293         daliasinterval_t *intervals;
 294         animscene_t *scene;
 295         pose = 0;
 296         scene = loadmodel->animscenes;
 297         for (f = 0;f < loadmodel->numframes;f++)
 298         {
 299                 pframetype = (daliasframetype_t *)datapointer;
 300                 datapointer += sizeof(daliasframetype_t);
 301                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 302                 {
 303                         // a single frame is still treated as a group
 304                         interval = 0.1f;
 305                         groupframes = 1;
 306                 }
 307                 else
 308                 {
 309                         // read group header
 310                         group = (daliasgroup_t *)datapointer;
 311                         datapointer += sizeof(daliasgroup_t);
 312                         groupframes = LittleLong (group->numframes);
 313
 314                         // intervals (time per frame)
 315                         intervals = (daliasinterval_t *)datapointer;
 316                         datapointer += sizeof(daliasinterval_t) * groupframes;
 317
 318                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 319                         if (interval < 0.01f)
 320                         {
 321                                 Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
 322                                 interval = 0.1f;
 323                         }
 324                 }
 325
 326                 // get scene name from first frame
 327                 pinframe = (daliasframe_t *)datapointer;
 328
 329                 strcpy(scene->name, pinframe->name);
 330                 scene->firstframe = pose;
 331                 scene->framecount = groupframes;
 332                 scene->framerate = 1.0f / interval;
 333                 scene->loop = true;
 334                 scene++;
 335
 336                 // read frames
 337                 for (i = 0;i < groupframes;i++)
 338                 {
 339                         pinframe = (daliasframe_t *)datapointer;
 340                         datapointer += sizeof(daliasframe_t);
 341                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->meshlist[0]->data_morphvertex3f + pose * loadmodel->meshlist[0]->num_vertices * 3, vertremap);
 342                         datapointer += sizeof(trivertx_t) * inverts;
 343                         pose++;
 344                 }
 345         }
 346 }
 347
 348 static skinframe_t missingskinframe;
 349 static void Mod_BuildAliasSkinFromSkinFrame(texture_t *skin, skinframe_t *skinframe)
 350 {
 351         // hack
 352         if (skinframe == NULL)
 353         {
 354                 skinframe = &missingskinframe;
 355                 memset(skinframe, 0, sizeof(*skinframe));
 356                 skinframe->base = r_texture_notexture;
 357         }
 358
 359         skin->skin = *skinframe;
 360         skin->currentframe = skin;
 361         skin->basematerialflags = MATERIALFLAG_WALL;
 362         if (skin->skin.fog)
 363                 skin->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
 364         skin->currentmaterialflags = skin->basematerialflags;
 365 }
 366
 367 static void Mod_BuildAliasSkinsFromSkinFiles(texture_t *skin, skinfile_t *skinfile, char *meshname, char *shadername)
 368 {
 369         int i;
 370         skinfileitem_t *skinfileitem;
 371         skinframe_t tempskinframe;
 372         if (skinfile)
 373         {
 374                 // the skin += loadmodel->num_surfaces part of this is because data_textures on alias models is arranged as [numskins][numsurfaces]
 375                 for (i = 0;skinfile;skinfile = skinfile->next, i++, skin += loadmodel->num_surfaces)
 376                 {
 377                         memset(skin, 0, sizeof(*skin));
 378                         for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = skinfileitem->next)
 379                         {
 380                                 // leave the skin unitialized (nodraw) if the replacement is "common/nodraw" or "textures/common/nodraw"
 381                                 if (!strcmp(skinfileitem->name, meshname) && strcmp(skinfileitem->replacement, "common/nodraw") && strcmp(skinfileitem->replacement, "textures/common/nodraw"))
 382                                 {
 383                                         memset(&tempskinframe, 0, sizeof(tempskinframe));
 384                                         if (Mod_LoadSkinFrame(&tempskinframe, skinfileitem->replacement, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, true, false, true))
 385                                                 Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 386                                         else
 387                                         {
 388                                                 if (cls.state != ca_dedicated)
 389                                                         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);
 390                                                 if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, true, false, true))
 391                                                         Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 392                                                 else
 393                                                 {
 394                                                         if (cls.state != ca_dedicated)
 395                                                                 Con_Printf("failed to load skin \"%s\"\n", shadername);
 396                                                         Mod_BuildAliasSkinFromSkinFrame(skin, NULL);
 397                                                 }
 398                                         }
 399                                 }
 400                         }
 401                 }
 402         }
 403         else
 404         {
 405                 memset(&tempskinframe, 0, sizeof(tempskinframe));
 406                 if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, true, false, true))
 407                         Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 408                 else
 409                 {
 410                         if (cls.state != ca_dedicated)
 411                                 Con_Printf("failed to load mesh \"%s\" shader \"%s\"\n", meshname, shadername);
 412                         Mod_BuildAliasSkinFromSkinFrame(skin, NULL);
 413                 }
 414         }
 415 }
 416
 417 #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);
 418 #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);
 419 extern void R_Q1BSP_Draw(entity_render_t *ent);
 420 extern void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist, const vec3_t lightmins, const vec3_t lightmaxs);
 421 extern void R_Q1BSP_DrawLight(entity_render_t *ent, float *lightcolor, int numsurfaces, const int *surfacelist);
 422 void Mod_IDP0_Load(model_t *mod, void *buffer)
 423 {
 424         int i, j, version, totalskins, skinwidth, skinheight, groupframes, groupskins, numverts;
 425         float scales, scalet, scale[3], translate[3], interval;
 426         msurface_t *surface;
 427         qbyte *data;
 428         mdl_t *pinmodel;
 429         stvert_t *pinstverts;
 430         dtriangle_t *pintriangles;
 431         daliasskintype_t *pinskintype;
 432         daliasskingroup_t *pinskingroup;
 433         daliasskininterval_t *pinskinintervals;
 434         daliasframetype_t *pinframetype;
 435         daliasgroup_t *pinframegroup;
 436         qbyte *datapointer, *startframes, *startskins;
 437         char name[MAX_QPATH];
 438         skinframe_t tempskinframe;
 439         animscene_t *tempskinscenes;
 440         texture_t *tempaliasskins;
 441         float *vertst;
 442         int *vertonseam, *vertremap;
 443         skinfile_t *skinfiles;
 444
 445         datapointer = buffer;
 446         pinmodel = (mdl_t *)datapointer;
 447         datapointer += sizeof(mdl_t);
 448
 449         version = LittleLong (pinmodel->version);
 450         if (version != ALIAS_VERSION)
 451                 Host_Error ("%s has wrong version number (%i should be %i)",
 452                                  loadmodel->name, version, ALIAS_VERSION);
 453
 454         loadmodel->type = mod_alias;
 455         loadmodel->DrawSky = NULL;
 456         loadmodel->Draw = R_Q1BSP_Draw;
 457         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
 458         loadmodel->DrawLight = R_Q1BSP_DrawLight;
 459         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 460
 461         loadmodel->num_surfaces = 1;
 462         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
 463         loadmodel->nummeshes = loadmodel->num_surfaces;
 464         data = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->nummeshes * sizeof(surfmesh_t *) + loadmodel->nummeshes * sizeof(surfmesh_t));
 465         loadmodel->data_surfaces = (void *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
 466         loadmodel->surfacelist = (void *)data;data += loadmodel->num_surfaces * sizeof(int);
 467         loadmodel->meshlist = (void *)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
 468         for (i = 0;i < loadmodel->num_surfaces;i++)
 469         {
 470                 loadmodel->surfacelist[i] = i;
 471                 loadmodel->meshlist[i] = (void *)data;data += sizeof(surfmesh_t);
 472         }
 473
 474         loadmodel->numskins = LittleLong(pinmodel->numskins);
 475         BOUNDI(loadmodel->numskins,0,65536);
 476         skinwidth = LittleLong (pinmodel->skinwidth);
 477         BOUNDI(skinwidth,0,65536);
 478         skinheight = LittleLong (pinmodel->skinheight);
 479         BOUNDI(skinheight,0,65536);
 480         numverts = LittleLong(pinmodel->numverts);
 481         BOUNDI(numverts,0,65536);
 482         loadmodel->meshlist[0]->num_triangles = LittleLong(pinmodel->numtris);
 483         BOUNDI(loadmodel->meshlist[0]->num_triangles,0,65536);
 484         loadmodel->numframes = LittleLong(pinmodel->numframes);
 485         BOUNDI(loadmodel->numframes,0,65536);
 486         loadmodel->synctype = LittleLong (pinmodel->synctype);
 487         BOUNDI(loadmodel->synctype,0,2);
 488         loadmodel->flags = LittleLong (pinmodel->flags);
 489
 490         for (i = 0;i < 3;i++)
 491         {
 492                 scale[i] = LittleFloat (pinmodel->scale[i]);
 493                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 494         }
 495
 496         startskins = datapointer;
 497         totalskins = 0;
 498         for (i = 0;i < loadmodel->numskins;i++)
 499         {
 500                 pinskintype = (daliasskintype_t *)datapointer;
 501                 datapointer += sizeof(daliasskintype_t);
 502                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 503                         groupskins = 1;
 504                 else
 505                 {
 506                         pinskingroup = (daliasskingroup_t *)datapointer;
 507                         datapointer += sizeof(daliasskingroup_t);
 508                         groupskins = LittleLong(pinskingroup->numskins);
 509                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 510                 }
 511
 512                 for (j = 0;j < groupskins;j++)
 513                 {
 514                         datapointer += skinwidth * skinheight;
 515                         totalskins++;
 516                 }
 517         }
 518
 519         pinstverts = (stvert_t *)datapointer;
 520         datapointer += sizeof(stvert_t) * numverts;
 521
 522         pintriangles = (dtriangle_t *)datapointer;
 523         datapointer += sizeof(dtriangle_t) * loadmodel->meshlist[0]->num_triangles;
 524
 525         startframes = datapointer;
 526         loadmodel->meshlist[0]->num_morphframes = 0;
 527         for (i = 0;i < loadmodel->numframes;i++)
 528         {
 529                 pinframetype = (daliasframetype_t *)datapointer;
 530                 datapointer += sizeof(daliasframetype_t);
 531                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 532                         groupframes = 1;
 533                 else
 534                 {
 535                         pinframegroup = (daliasgroup_t *)datapointer;
 536                         datapointer += sizeof(daliasgroup_t);
 537                         groupframes = LittleLong(pinframegroup->numframes);
 538                         datapointer += sizeof(daliasinterval_t) * groupframes;
 539                 }
 540
 541                 for (j = 0;j < groupframes;j++)
 542                 {
 543                         datapointer += sizeof(daliasframe_t);
 544                         datapointer += sizeof(trivertx_t) * numverts;
 545                         loadmodel->meshlist[0]->num_morphframes++;
 546                 }
 547         }
 548
 549         // store texture coordinates into temporary array, they will be stored
 550         // after usage is determined (triangle data)
 551         vertst = Mem_Alloc(tempmempool, numverts * 2 * sizeof(float[2]));
 552         vertremap = Mem_Alloc(tempmempool, numverts * 3 * sizeof(int));
 553         vertonseam = vertremap + numverts * 2;
 554
 555         scales = 1.0 / skinwidth;
 556         scalet = 1.0 / skinheight;
 557         for (i = 0;i < numverts;i++)
 558         {
 559                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 560                 vertst[i*2+0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 561                 vertst[i*2+1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 562                 vertst[(i+numverts)*2+0] = vertst[i*2+0] + 0.5;
 563                 vertst[(i+numverts)*2+1] = vertst[i*2+1];
 564         }
 565
 566 // load triangle data
 567         loadmodel->meshlist[0]->data_element3i = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->meshlist[0]->num_triangles);
 568
 569         // read the triangle elements
 570         for (i = 0;i < loadmodel->meshlist[0]->num_triangles;i++)
 571                 for (j = 0;j < 3;j++)
 572                         loadmodel->meshlist[0]->data_element3i[i*3+j] = LittleLong(pintriangles[i].vertindex[j]);
 573         // validate (note numverts is used because this is the original data)
 574         Mod_ValidateElements(loadmodel->meshlist[0]->data_element3i, loadmodel->meshlist[0]->num_triangles, numverts, __FILE__, __LINE__);
 575         // now butcher the elements according to vertonseam and tri->facesfront
 576         // and then compact the vertex set to remove duplicates
 577         for (i = 0;i < loadmodel->meshlist[0]->num_triangles;i++)
 578                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 579                         for (j = 0;j < 3;j++)
 580                                 if (vertonseam[loadmodel->meshlist[0]->data_element3i[i*3+j]])
 581                                         loadmodel->meshlist[0]->data_element3i[i*3+j] += numverts;
 582         // count the usage
 583         // (this uses vertremap to count usage to save some memory)
 584         for (i = 0;i < numverts*2;i++)
 585                 vertremap[i] = 0;
 586         for (i = 0;i < loadmodel->meshlist[0]->num_triangles*3;i++)
 587                 vertremap[loadmodel->meshlist[0]->data_element3i[i]]++;
 588         // build remapping table and compact array
 589         loadmodel->meshlist[0]->num_vertices = 0;
 590         for (i = 0;i < numverts*2;i++)
 591         {
 592                 if (vertremap[i])
 593                 {
 594                         vertremap[i] = loadmodel->meshlist[0]->num_vertices;
 595                         vertst[loadmodel->meshlist[0]->num_vertices*2+0] = vertst[i*2+0];
 596                         vertst[loadmodel->meshlist[0]->num_vertices*2+1] = vertst[i*2+1];
 597                         loadmodel->meshlist[0]->num_vertices++;
 598                 }
 599                 else
 600                         vertremap[i] = -1; // not used at all
 601         }
 602         // remap the elements to the new vertex set
 603         for (i = 0;i < loadmodel->meshlist[0]->num_triangles * 3;i++)
 604                 loadmodel->meshlist[0]->data_element3i[i] = vertremap[loadmodel->meshlist[0]->data_element3i[i]];
 605         // store the texture coordinates
 606         loadmodel->meshlist[0]->data_texcoordtexture2f = Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * loadmodel->meshlist[0]->num_vertices);
 607         for (i = 0;i < loadmodel->meshlist[0]->num_vertices;i++)
 608         {
 609                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+0] = vertst[i*2+0];
 610                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+1] = vertst[i*2+1];
 611         }
 612
 613 // load the frames
 614         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 615         loadmodel->meshlist[0]->data_morphvertex3f = Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * loadmodel->meshlist[0]->num_morphframes * loadmodel->meshlist[0]->num_vertices);
 616         loadmodel->meshlist[0]->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_triangles * sizeof(int[3]));
 617         Mod_MDL_LoadFrames (startframes, numverts, scale, translate, vertremap);
 618         Mod_BuildTriangleNeighbors(loadmodel->meshlist[0]->data_neighbor3i, loadmodel->meshlist[0]->data_element3i, loadmodel->meshlist[0]->num_triangles);
 619         Mod_CalcAliasModelBBoxes();
 620         Mod_Alias_Mesh_CompileFrameZero(loadmodel->meshlist[0]);
 621
 622         Mem_Free(vertst);
 623         Mem_Free(vertremap);
 624
 625         // load the skins
 626         skinfiles = Mod_LoadSkinFiles();
 627         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 628         loadmodel->num_textures = loadmodel->num_surfaces;
 629         loadmodel->data_textures = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * totalskins * sizeof(texture_t));
 630         if (skinfiles)
 631         {
 632                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures, skinfiles, "default", "");
 633                 Mod_FreeSkinFiles(skinfiles);
 634                 for (i = 0;i < loadmodel->numskins;i++)
 635                 {
 636                         loadmodel->skinscenes[i].firstframe = i;
 637                         loadmodel->skinscenes[i].framecount = 1;
 638                         loadmodel->skinscenes[i].loop = true;
 639                         loadmodel->skinscenes[i].framerate = 10;
 640                 }
 641         }
 642         else
 643         {
 644                 totalskins = 0;
 645                 datapointer = startskins;
 646                 for (i = 0;i < loadmodel->numskins;i++)
 647                 {
 648                         pinskintype = (daliasskintype_t *)datapointer;
 649                         datapointer += sizeof(daliasskintype_t);
 650
 651                         if (pinskintype->type == ALIAS_SKIN_SINGLE)
 652                         {
 653                                 groupskins = 1;
 654                                 interval = 0.1f;
 655                         }
 656                         else
 657                         {
 658                                 pinskingroup = (daliasskingroup_t *)datapointer;
 659                                 datapointer += sizeof(daliasskingroup_t);
 660
 661                                 groupskins = LittleLong (pinskingroup->numskins);
 662
 663                                 pinskinintervals = (daliasskininterval_t *)datapointer;
 664                                 datapointer += sizeof(daliasskininterval_t) * groupskins;
 665
 666                                 interval = LittleFloat(pinskinintervals[0].interval);
 667                                 if (interval < 0.01f)
 668                                 {
 669                                         Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
 670                                         interval = 0.1f;
 671                                 }
 672                         }
 673
 674                         sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 675                         loadmodel->skinscenes[i].firstframe = totalskins;
 676                         loadmodel->skinscenes[i].framecount = groupskins;
 677                         loadmodel->skinscenes[i].framerate = 1.0f / interval;
 678                         loadmodel->skinscenes[i].loop = true;
 679
 680                         for (j = 0;j < groupskins;j++)
 681                         {
 682                                 if (groupskins > 1)
 683                                         sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 684                                 else
 685                                         sprintf (name, "%s_%i", loadmodel->name, i);
 686                                 if (!Mod_LoadSkinFrame(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA | TEXF_PICMIP, true, false, true))
 687                                         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);
 688                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + totalskins * loadmodel->num_surfaces, &tempskinframe);
 689                                 datapointer += skinwidth * skinheight;
 690                                 totalskins++;
 691                         }
 692                 }
 693                 // check for skins that don't exist in the model, but do exist as external images
 694                 // (this was added because yummyluv kept pestering me about support for it)
 695                 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))
 696                 {
 697                         // expand the arrays to make room
 698                         tempskinscenes = loadmodel->skinscenes;
 699                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 700                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 701                         Mem_Free(tempskinscenes);
 702
 703                         tempaliasskins = loadmodel->data_textures;
 704                         loadmodel->data_textures = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * (totalskins + 1) * sizeof(texture_t));
 705                         memcpy(loadmodel->data_textures, tempaliasskins, loadmodel->num_surfaces * totalskins * sizeof(texture_t));
 706                         Mem_Free(tempaliasskins);
 707
 708                         // store the info about the new skin
 709                         Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + totalskins * loadmodel->num_surfaces, &tempskinframe);
 710                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 711                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 712                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 713                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 714                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 715
 716                         //increase skin counts
 717                         loadmodel->numskins++;
 718                         totalskins++;
 719                 }
 720         }
 721
 722         surface = loadmodel->data_surfaces;
 723         surface->texture = loadmodel->data_textures;
 724         surface->groupmesh = loadmodel->meshlist[0];
 725         surface->num_firsttriangle = 0;
 726         surface->num_triangles = surface->groupmesh->num_triangles;
 727         surface->num_firstvertex = 0;
 728         surface->num_vertices = surface->groupmesh->num_vertices;
 729 }
 730
 731 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int numverts, int *vertremap)
 732 {
 733         int i;
 734         trivertx_t *in;
 735         for (i = 0;i < numverts;i++, out3f += 3)
 736         {
 737                 in = v + vertremap[i];
 738                 out3f[0] = in->v[0] * scale[0] + translate[0];
 739                 out3f[1] = in->v[1] * scale[1] + translate[1];
 740                 out3f[2] = in->v[2] * scale[2] + translate[2];
 741         }
 742 }
 743
 744 void Mod_IDP2_Load(model_t *mod, void *buffer)
 745 {
 746         int i, j, k, hashindex, num, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end, numverts;
 747         float *stverts, s, t, scale[3], translate[3];
 748         qbyte *data;
 749         msurface_t *surface;
 750         md2_t *pinmodel;
 751         qbyte *base, *datapointer;
 752         md2frame_t *pinframe;
 753         char *inskin;
 754         md2triangle_t *intri;
 755         unsigned short *inst;
 756         struct md2verthash_s
 757         {
 758                 struct md2verthash_s *next;
 759                 int xyz;
 760                 float st[2];
 761         }
 762         *hash, **md2verthash, *md2verthashdata;
 763         skinframe_t tempskinframe;
 764         skinfile_t *skinfiles;
 765
 766         pinmodel = buffer;
 767         base = buffer;
 768
 769         version = LittleLong (pinmodel->version);
 770         if (version != MD2ALIAS_VERSION)
 771                 Host_Error ("%s has wrong version number (%i should be %i)",
 772                         loadmodel->name, version, MD2ALIAS_VERSION);
 773
 774         loadmodel->type = mod_alias;
 775         loadmodel->DrawSky = NULL;
 776         loadmodel->Draw = R_Q1BSP_Draw;
 777         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
 778         loadmodel->DrawLight = R_Q1BSP_DrawLight;
 779         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 780
 781         if (LittleLong(pinmodel->num_tris) < 1 || LittleLong(pinmodel->num_tris) > 65536)
 782                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 783         if (LittleLong(pinmodel->num_xyz) < 1 || LittleLong(pinmodel->num_xyz) > 65536)
 784                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 785         if (LittleLong(pinmodel->num_frames) < 1 || LittleLong(pinmodel->num_frames) > 65536)
 786                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 787         if (LittleLong(pinmodel->num_skins) < 0 || LittleLong(pinmodel->num_skins) > 256)
 788                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 789
 790         end = LittleLong(pinmodel->ofs_end);
 791         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins) <= 0 || LittleLong(pinmodel->ofs_skins) >= end))
 792                 Host_Error ("%s is not a valid model", loadmodel->name);
 793         if (LittleLong(pinmodel->ofs_st) <= 0 || LittleLong(pinmodel->ofs_st) >= end)
 794                 Host_Error ("%s is not a valid model", loadmodel->name);
 795         if (LittleLong(pinmodel->ofs_tris) <= 0 || LittleLong(pinmodel->ofs_tris) >= end)
 796                 Host_Error ("%s is not a valid model", loadmodel->name);
 797         if (LittleLong(pinmodel->ofs_frames) <= 0 || LittleLong(pinmodel->ofs_frames) >= end)
 798                 Host_Error ("%s is not a valid model", loadmodel->name);
 799         if (LittleLong(pinmodel->ofs_glcmds) <= 0 || LittleLong(pinmodel->ofs_glcmds) >= end)
 800                 Host_Error ("%s is not a valid model", loadmodel->name);
 801
 802         loadmodel->num_surfaces = 1;
 803         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
 804         loadmodel->nummeshes = loadmodel->num_surfaces;
 805         data = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->nummeshes * sizeof(surfmesh_t *) + loadmodel->nummeshes * sizeof(surfmesh_t));
 806         loadmodel->data_surfaces = (void *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
 807         loadmodel->surfacelist = (void *)data;data += loadmodel->num_surfaces * sizeof(int);
 808         loadmodel->meshlist = (void *)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
 809         for (i = 0;i < loadmodel->num_surfaces;i++)
 810         {
 811                 loadmodel->surfacelist[i] = i;
 812                 loadmodel->meshlist[i] = (void *)data;data += sizeof(surfmesh_t);
 813         }
 814
 815         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 816         numxyz = LittleLong(pinmodel->num_xyz);
 817         numst = LittleLong(pinmodel->num_st);
 818         loadmodel->meshlist[0]->num_triangles = LittleLong(pinmodel->num_tris);
 819         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 820         loadmodel->meshlist[0]->num_morphframes = loadmodel->numframes;
 821         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 822
 823         loadmodel->flags = 0; // there are no MD2 flags
 824         loadmodel->synctype = ST_RAND;
 825
 826         // load the skins
 827         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 828         skinfiles = Mod_LoadSkinFiles();
 829         if (skinfiles)
 830         {
 831                 loadmodel->num_textures = loadmodel->num_surfaces;
 832                 loadmodel->data_textures = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
 833                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures, skinfiles, "default", "");
 834                 Mod_FreeSkinFiles(skinfiles);
 835         }
 836         else if (loadmodel->numskins)
 837         {
 838                 // skins found (most likely not a player model)
 839                 loadmodel->num_textures = loadmodel->num_surfaces;
 840                 loadmodel->data_textures = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
 841                 for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
 842                 {
 843                         if (Mod_LoadSkinFrame(&tempskinframe, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, true, false, true))
 844                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i * loadmodel->num_surfaces, &tempskinframe);
 845                         else
 846                         {
 847                                 Con_Printf("%s is missing skin \"%s\"\n", loadmodel->name, inskin);
 848                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i * loadmodel->num_surfaces, NULL);
 849                         }
 850                 }
 851         }
 852         else
 853         {
 854                 // no skins (most likely a player model)
 855                 loadmodel->numskins = 1;
 856                 loadmodel->num_textures = loadmodel->num_surfaces;
 857                 loadmodel->data_textures = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
 858                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures, NULL);
 859         }
 860
 861         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 862         for (i = 0;i < loadmodel->numskins;i++)
 863         {
 864                 loadmodel->skinscenes[i].firstframe = i;
 865                 loadmodel->skinscenes[i].framecount = 1;
 866                 loadmodel->skinscenes[i].loop = true;
 867                 loadmodel->skinscenes[i].framerate = 10;
 868         }
 869
 870         // load the triangles and stvert data
 871         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 872         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 873         skinwidth = LittleLong(pinmodel->skinwidth);
 874         skinheight = LittleLong(pinmodel->skinheight);
 875
 876         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 877         s = 1.0f / skinwidth;
 878         t = 1.0f / skinheight;
 879         for (i = 0;i < numst;i++)
 880         {
 881                 j = (unsigned short) LittleShort(inst[i*2+0]);
 882                 k = (unsigned short) LittleShort(inst[i*2+1]);
 883                 if (j >= skinwidth || k >= skinheight)
 884                 {
 885                         Con_Printf("%s has an invalid skin coordinate (%i %i) on vert %i, changing to 0 0\n", loadmodel->name, j, k, i);
 886                         j = 0;
 887                         k = 0;
 888                 }
 889                 stverts[i*2+0] = j * s;
 890                 stverts[i*2+1] = k * t;
 891         }
 892
 893         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 894         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->meshlist[0]->num_triangles * 3 * sizeof(*hash));
 895         // swap the triangle list
 896         num = 0;
 897         loadmodel->meshlist[0]->data_element3i = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_triangles * sizeof(int[3]));
 898         for (i = 0;i < loadmodel->meshlist[0]->num_triangles;i++)
 899         {
 900                 for (j = 0;j < 3;j++)
 901                 {
 902                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 903                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 904                         if (xyz >= numxyz)
 905                         {
 906                                 Con_Printf("%s has an invalid xyz index (%i) on triangle %i, resetting to 0\n", loadmodel->name, xyz, i);
 907                                 xyz = 0;
 908                         }
 909                         if (st >= numst)
 910                         {
 911                                 Con_Printf("%s has an invalid st index (%i) on triangle %i, resetting to 0\n", loadmodel->name, st, i);
 912                                 st = 0;
 913                         }
 914                         s = stverts[st*2+0];
 915                         t = stverts[st*2+1];
 916                         hashindex = (xyz * 17 + st) & 255;
 917                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 918                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 919                                         break;
 920                         if (hash == NULL)
 921                         {
 922                                 hash = md2verthashdata + num++;
 923                                 hash->xyz = xyz;
 924                                 hash->st[0] = s;
 925                                 hash->st[1] = t;
 926                                 hash->next = md2verthash[hashindex];
 927                                 md2verthash[hashindex] = hash;
 928                         }
 929                         loadmodel->meshlist[0]->data_element3i[i*3+j] = (hash - md2verthashdata);
 930                 }
 931         }
 932
 933         Mem_Free(stverts);
 934
 935         numverts = num;
 936         loadmodel->meshlist[0]->num_vertices = numverts;
 937         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 938         loadmodel->meshlist[0]->data_texcoordtexture2f = Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
 939         for (i = 0;i < num;i++)
 940         {
 941                 hash = md2verthashdata + i;
 942                 vertremap[i] = hash->xyz;
 943                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+0] = hash->st[0];
 944                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+1] = hash->st[1];
 945         }
 946
 947         Mem_Free(md2verthash);
 948         Mem_Free(md2verthashdata);
 949
 950         // load the frames
 951         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 952         loadmodel->meshlist[0]->data_morphvertex3f = Mem_Alloc(loadmodel->mempool, numverts * loadmodel->meshlist[0]->num_morphframes * sizeof(float[3]));
 953         for (i = 0;i < loadmodel->meshlist[0]->num_morphframes;i++)
 954         {
 955                 pinframe = (md2frame_t *)datapointer;
 956                 datapointer += sizeof(md2frame_t);
 957                 for (j = 0;j < 3;j++)
 958                 {
 959                         scale[j] = LittleFloat(pinframe->scale[j]);
 960                         translate[j] = LittleFloat(pinframe->translate[j]);
 961                 }
 962                 Mod_MD2_ConvertVerts(scale, translate, (void *)datapointer, loadmodel->meshlist[0]->data_morphvertex3f + i * numverts * 3, numverts, vertremap);
 963                 datapointer += numxyz * sizeof(trivertx_t);
 964
 965                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 966                 loadmodel->animscenes[i].firstframe = i;
 967                 loadmodel->animscenes[i].framecount = 1;
 968                 loadmodel->animscenes[i].framerate = 10;
 969                 loadmodel->animscenes[i].loop = true;
 970         }
 971
 972         Mem_Free(vertremap);
 973
 974         loadmodel->meshlist[0]->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_triangles * sizeof(int[3]));
 975         Mod_BuildTriangleNeighbors(loadmodel->meshlist[0]->data_neighbor3i, loadmodel->meshlist[0]->data_element3i, loadmodel->meshlist[0]->num_triangles);
 976         Mod_CalcAliasModelBBoxes();
 977         Mod_Alias_Mesh_CompileFrameZero(loadmodel->meshlist[0]);
 978
 979         surface = loadmodel->data_surfaces;
 980         surface->groupmesh = loadmodel->meshlist[0];
 981         surface->texture = loadmodel->data_textures;
 982         surface->num_firsttriangle = 0;
 983         surface->num_triangles = surface->groupmesh->num_triangles;
 984         surface->num_firstvertex = 0;
 985         surface->num_vertices = surface->groupmesh->num_vertices;
 986 }
 987
 988 void Mod_IDP3_Load(model_t *mod, void *buffer)
 989 {
 990         int i, j, k, version;
 991         qbyte *data;
 992         msurface_t *surface;
 993         surfmesh_t *mesh;
 994         md3modelheader_t *pinmodel;
 995         md3frameinfo_t *pinframe;
 996         md3mesh_t *pinmesh;
 997         md3tag_t *pintag;
 998         skinfile_t *skinfiles;
 999
1000         pinmodel = buffer;
1001
1002         if (memcmp(pinmodel->identifier, "IDP3", 4))
1003                 Host_Error ("%s is not a MD3 (IDP3) file\n", loadmodel->name);
1004         version = LittleLong (pinmodel->version);
1005         if (version != MD3VERSION)
1006                 Host_Error ("%s has wrong version number (%i should be %i)",
1007                         loadmodel->name, version, MD3VERSION);
1008
1009         skinfiles = Mod_LoadSkinFiles();
1010         if (loadmodel->numskins < 1)
1011                 loadmodel->numskins = 1;
1012
1013         loadmodel->type = mod_alias;
1014         loadmodel->DrawSky = NULL;
1015         loadmodel->Draw = R_Q1BSP_Draw;
1016         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
1017         loadmodel->DrawLight = R_Q1BSP_DrawLight;
1018         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
1019         loadmodel->flags = LittleLong(pinmodel->flags);
1020         loadmodel->synctype = ST_RAND;
1021
1022         // set up some global info about the model
1023         loadmodel->numframes = LittleLong(pinmodel->num_frames);
1024         loadmodel->num_surfaces = LittleLong(pinmodel->num_meshes);
1025
1026         // make skinscenes for the skins (no groups)
1027         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
1028         for (i = 0;i < loadmodel->numskins;i++)
1029         {
1030                 loadmodel->skinscenes[i].firstframe = i;
1031                 loadmodel->skinscenes[i].framecount = 1;
1032                 loadmodel->skinscenes[i].loop = true;
1033                 loadmodel->skinscenes[i].framerate = 10;
1034         }
1035
1036         // load frameinfo
1037         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
1038         for (i = 0, pinframe = (md3frameinfo_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
1039         {
1040                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
1041                 loadmodel->animscenes[i].firstframe = i;
1042                 loadmodel->animscenes[i].framecount = 1;
1043                 loadmodel->animscenes[i].framerate = 10;
1044                 loadmodel->animscenes[i].loop = true;
1045         }
1046
1047         // load tags
1048         loadmodel->num_tagframes = loadmodel->numframes;
1049         loadmodel->num_tags = LittleLong(pinmodel->num_tags);
1050         loadmodel->data_tags = Mem_Alloc(loadmodel->mempool, loadmodel->num_tagframes * loadmodel->num_tags * sizeof(aliastag_t));
1051         for (i = 0, pintag = (md3tag_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_tags));i < loadmodel->num_tagframes * loadmodel->num_tags;i++, pintag++)
1052         {
1053                 strcpy(loadmodel->data_tags[i].name, pintag->name);
1054                 Matrix4x4_CreateIdentity(&loadmodel->data_tags[i].matrix);
1055                 for (j = 0;j < 3;j++)
1056                 {
1057                         for (k = 0;k < 3;k++)
1058                                 loadmodel->data_tags[i].matrix.m[j][k] = LittleFloat(pintag->rotationmatrix[k * 3 + j]);
1059                         loadmodel->data_tags[i].matrix.m[j][3] = LittleFloat(pintag->origin[j]);
1060                 }
1061                 //Con_Printf("model \"%s\" frame #%i tag #%i \"%s\"\n", loadmodel->name, i / loadmodel->num_tags, i % loadmodel->num_tags, loadmodel->data_tags[i].name);
1062         }
1063
1064         // load meshes
1065         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
1066         loadmodel->nummeshes = loadmodel->num_surfaces;
1067         loadmodel->num_textures = loadmodel->num_surfaces;
1068         data = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->nummeshes * sizeof(surfmesh_t *) + loadmodel->nummeshes * sizeof(surfmesh_t) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
1069         loadmodel->data_surfaces = (void *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
1070         loadmodel->surfacelist = (void *)data;data += loadmodel->num_surfaces * sizeof(int);
1071         loadmodel->meshlist = (void *)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
1072         loadmodel->data_textures = (void *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
1073         for (i = 0;i < loadmodel->num_surfaces;i++)
1074         {
1075                 loadmodel->surfacelist[i] = i;
1076                 loadmodel->meshlist[i] = (void *)data;data += sizeof(surfmesh_t);
1077         }
1078         for (i = 0, pinmesh = (md3mesh_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_meshes));i < loadmodel->num_surfaces;i++, pinmesh = (md3mesh_t *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_end)))
1079         {
1080                 if (memcmp(pinmesh->identifier, "IDP3", 4))
1081                         Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)\n");
1082                 mesh = loadmodel->meshlist[i];
1083                 mesh->num_morphframes = LittleLong(pinmesh->num_frames);
1084                 mesh->num_vertices = LittleLong(pinmesh->num_vertices);
1085                 mesh->num_triangles = LittleLong(pinmesh->num_triangles);
1086                 mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1087                 mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1088                 mesh->data_texcoordtexture2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
1089                 mesh->data_morphvertex3f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * mesh->num_morphframes * sizeof(float[3]));
1090                 for (j = 0;j < mesh->num_triangles * 3;j++)
1091                         mesh->data_element3i[j] = LittleLong(((int *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_elements)))[j]);
1092                 for (j = 0;j < mesh->num_vertices;j++)
1093                 {
1094                         mesh->data_texcoordtexture2f[j * 2 + 0] = LittleFloat(((float *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 0]);
1095                         mesh->data_texcoordtexture2f[j * 2 + 1] = LittleFloat(((float *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 1]);
1096                 }
1097                 for (j = 0;j < mesh->num_vertices * mesh->num_morphframes;j++)
1098                 {
1099                         mesh->data_morphvertex3f[j * 3 + 0] = LittleShort(((short *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 0]) * (1.0f / 64.0f);
1100                         mesh->data_morphvertex3f[j * 3 + 1] = LittleShort(((short *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 1]) * (1.0f / 64.0f);
1101                         mesh->data_morphvertex3f[j * 3 + 2] = LittleShort(((short *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 2]) * (1.0f / 64.0f);
1102                 }
1103
1104                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
1105                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1106                 Mod_Alias_Mesh_CompileFrameZero(mesh);
1107
1108                 if (LittleLong(pinmesh->num_shaders) >= 1)
1109                         Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, pinmesh->name, ((md3shader_t *)((qbyte *) pinmesh + LittleLong(pinmesh->lump_shaders)))->name);
1110                 else
1111                         for (j = 0;j < loadmodel->numskins;j++)
1112                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i + j * loadmodel->num_surfaces, NULL);
1113
1114                 surface = loadmodel->data_surfaces + i;
1115                 surface->groupmesh = mesh;
1116                 surface->texture = loadmodel->data_textures + i;
1117                 surface->num_firsttriangle = 0;
1118                 surface->num_triangles = mesh->num_triangles;
1119                 surface->num_firstvertex = 0;
1120                 surface->num_vertices = mesh->num_vertices;
1121         }
1122         Mod_CalcAliasModelBBoxes();
1123         Mod_FreeSkinFiles(skinfiles);
1124 }
1125
1126 void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer)
1127 {
1128         zymtype1header_t *pinmodel, *pheader;
1129         qbyte *pbase;
1130         int i, j, k, l, numposes, *bonecount, *vertbonecounts, count, *renderlist, *renderlistend, *outelements, *remapvertices;
1131         float modelradius, corner[2], *poses, *intexcoord2f, *outtexcoord2f;
1132         zymvertex_t *verts, *vertdata;
1133         zymscene_t *scene;
1134         zymbone_t *bone;
1135         char *shadername;
1136         skinfile_t *skinfiles;
1137         qbyte *data;
1138         msurface_t *surface;
1139         surfmesh_t *mesh;
1140
1141         pinmodel = (void *)buffer;
1142         pbase = buffer;
1143         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
1144                 Host_Error ("Mod_ZYMOTICMODEL_Load: %s is not a zymotic model\n");
1145         if (BigLong(pinmodel->type) != 1)
1146                 Host_Error ("Mod_ZYMOTICMODEL_Load: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
1147
1148         loadmodel->type = mod_alias;
1149         loadmodel->DrawSky = NULL;
1150         loadmodel->Draw = R_Q1BSP_Draw;
1151         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
1152         loadmodel->DrawLight = R_Q1BSP_DrawLight;
1153         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
1154         loadmodel->flags = 0; // there are no flags on zym models
1155         loadmodel->synctype = ST_RAND;
1156
1157         // byteswap header
1158         pheader = pinmodel;
1159         pheader->type = BigLong(pinmodel->type);
1160         pheader->filesize = BigLong(pinmodel->filesize);
1161         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
1162         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
1163         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
1164         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
1165         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
1166         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
1167         pheader->radius = BigFloat(pinmodel->radius);
1168         pheader->numverts = BigLong(pinmodel->numverts);
1169         pheader->numtris = BigLong(pinmodel->numtris);
1170         pheader->numshaders = BigLong(pinmodel->numshaders);
1171         pheader->numbones = BigLong(pinmodel->numbones);
1172         pheader->numscenes = BigLong(pinmodel->numscenes);
1173         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
1174         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
1175         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
1176         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
1177         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
1178         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
1179         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
1180         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
1181         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
1182         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
1183         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
1184         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
1185         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
1186         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
1187         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
1188         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
1189         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
1190         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
1191
1192         loadmodel->numframes = pheader->numscenes;
1193         loadmodel->num_surfaces = pheader->numshaders;
1194
1195         skinfiles = Mod_LoadSkinFiles();
1196         if (loadmodel->numskins < 1)
1197                 loadmodel->numskins = 1;
1198
1199         // make skinscenes for the skins (no groups)
1200         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
1201         for (i = 0;i < loadmodel->numskins;i++)
1202         {
1203                 loadmodel->skinscenes[i].firstframe = i;
1204                 loadmodel->skinscenes[i].framecount = 1;
1205                 loadmodel->skinscenes[i].loop = true;
1206                 loadmodel->skinscenes[i].framerate = 10;
1207         }
1208
1209         // model bbox
1210         modelradius = pheader->radius;
1211         for (i = 0;i < 3;i++)
1212         {
1213                 loadmodel->normalmins[i] = pheader->mins[i];
1214                 loadmodel->normalmaxs[i] = pheader->maxs[i];
1215                 loadmodel->rotatedmins[i] = -modelradius;
1216                 loadmodel->rotatedmaxs[i] = modelradius;
1217         }
1218         corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
1219         corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
1220         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
1221         if (loadmodel->yawmaxs[0] > modelradius)
1222                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
1223         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
1224         loadmodel->yawmins[2] = loadmodel->normalmins[2];
1225         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
1226         loadmodel->radius = modelradius;
1227         loadmodel->radius2 = modelradius * modelradius;
1228
1229         // go through the lumps, swapping things
1230
1231         //zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
1232         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
1233         scene = (void *) (pheader->lump_scenes.start + pbase);
1234         numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
1235         for (i = 0;i < pheader->numscenes;i++)
1236         {
1237                 memcpy(loadmodel->animscenes[i].name, scene->name, 32);
1238                 loadmodel->animscenes[i].firstframe = BigLong(scene->start);
1239                 loadmodel->animscenes[i].framecount = BigLong(scene->length);
1240                 loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
1241                 loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
1242                 if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
1243                         Host_Error("%s scene->firstframe (%i) >= numposes (%i)\n", loadmodel->name, loadmodel->animscenes[i].firstframe, numposes);
1244                 if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
1245                         Host_Error("%s scene->firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->name, loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
1246                 if (loadmodel->animscenes[i].framerate < 0)
1247                         Host_Error("%s scene->framerate (%f) < 0\n", loadmodel->name, loadmodel->animscenes[i].framerate);
1248                 scene++;
1249         }
1250
1251         //zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
1252         loadmodel->num_poses = pheader->lump_poses.length / sizeof(float[3][4]);
1253         loadmodel->data_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
1254         poses = (void *) (pheader->lump_poses.start + pbase);
1255         for (i = 0;i < pheader->lump_poses.length / 4;i++)
1256                 loadmodel->data_poses[i] = BigFloat(poses[i]);
1257
1258         //zymlump_t lump_bones; // zymbone_t bone[numbones];
1259         loadmodel->num_bones = pheader->numbones;
1260         loadmodel->data_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(aliasbone_t));
1261         bone = (void *) (pheader->lump_bones.start + pbase);
1262         for (i = 0;i < pheader->numbones;i++)
1263         {
1264                 memcpy(loadmodel->data_bones[i].name, bone[i].name, sizeof(bone[i].name));
1265                 loadmodel->data_bones[i].flags = BigLong(bone[i].flags);
1266                 loadmodel->data_bones[i].parent = BigLong(bone[i].parent);
1267                 if (loadmodel->data_bones[i].parent >= i)
1268                         Host_Error("%s bone[%i].parent >= %i\n", loadmodel->name, i, i);
1269         }
1270
1271         //zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
1272         vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1273         bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
1274         for (i = 0;i < pheader->numverts;i++)
1275         {
1276                 vertbonecounts[i] = BigLong(bonecount[i]);
1277                 if (vertbonecounts[i] < 1)
1278                         Host_Error("%s bonecount[%i] < 1\n", loadmodel->name, i);
1279         }
1280
1281         //zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
1282         verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
1283         vertdata = (void *) (pheader->lump_verts.start + pbase);
1284         for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
1285         {
1286                 verts[i].bonenum = BigLong(vertdata[i].bonenum);
1287                 verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
1288                 verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
1289                 verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
1290         }
1291
1292         //zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1293         outtexcoord2f = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[2]));
1294         intexcoord2f = (void *) (pheader->lump_texcoords.start + pbase);
1295         for (i = 0;i < pheader->numverts;i++)
1296         {
1297                 outtexcoord2f[i*2+0] = BigFloat(intexcoord2f[i*2+0]);
1298                 // flip T coordinate for OpenGL
1299                 outtexcoord2f[i*2+1] = 1 - BigFloat(intexcoord2f[i*2+1]);
1300         }
1301
1302         //zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1303         //loadmodel->alias.zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1304         //memcpy(loadmodel->alias.zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1305
1306         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
1307         loadmodel->nummeshes = loadmodel->num_surfaces;
1308         loadmodel->num_textures = loadmodel->num_surfaces;
1309         data = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->nummeshes * sizeof(surfmesh_t *) + loadmodel->nummeshes * sizeof(surfmesh_t) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
1310         loadmodel->data_surfaces = (void *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
1311         loadmodel->surfacelist = (void *)data;data += loadmodel->num_surfaces * sizeof(int);
1312         loadmodel->meshlist = (void *)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
1313         loadmodel->data_textures = (void *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
1314         for (i = 0;i < loadmodel->num_surfaces;i++)
1315         {
1316                 loadmodel->surfacelist[i] = i;
1317                 loadmodel->meshlist[i] = (void *)data;data += sizeof(surfmesh_t);
1318         }
1319
1320         //zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1321         //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)
1322         // byteswap, validate, and swap winding order of tris
1323         count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1324         if (pheader->lump_render.length != count)
1325                 Host_Error("%s renderlist is wrong size (%i bytes, should be %i bytes)\n", loadmodel->name, pheader->lump_render.length, count);
1326         renderlist = (void *) (pheader->lump_render.start + pbase);
1327         renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
1328         for (i = 0;i < loadmodel->num_surfaces;i++)
1329         {
1330                 if (renderlist >= renderlistend)
1331                         Host_Error("%s corrupt renderlist (wrong size)\n", loadmodel->name);
1332                 count = BigLong(*renderlist);renderlist++;
1333                 if (renderlist + count * 3 > renderlistend || (i == pheader->numshaders - 1 && renderlist + count * 3 != renderlistend))
1334                         Host_Error("%s corrupt renderlist (wrong size)\n", loadmodel->name);
1335                 mesh = loadmodel->meshlist[i];
1336                 mesh->num_triangles = count;
1337                 mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1338                 mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1339                 outelements = mesh->data_element3i;
1340                 for (j = 0;j < mesh->num_triangles;j++)
1341                 {
1342                         outelements[2] = BigLong(renderlist[0]);
1343                         outelements[1] = BigLong(renderlist[1]);
1344                         outelements[0] = BigLong(renderlist[2]);
1345                         if ((unsigned int)outelements[0] >= (unsigned int)pheader->numverts
1346                          || (unsigned int)outelements[1] >= (unsigned int)pheader->numverts
1347                          || (unsigned int)outelements[2] >= (unsigned int)pheader->numverts)
1348                                 Host_Error("%s corrupt renderlist (out of bounds index)\n", loadmodel->name);
1349                         if (vertbonecounts[outelements[0]] == 0 || vertbonecounts[outelements[1]] == 0 || vertbonecounts[outelements[2]] == 0)
1350                                 Host_Error("%s corrupt renderlist (references vertex with no bone weights\n", loadmodel->name);
1351                         renderlist += 3;
1352                         outelements += 3;
1353                 }
1354                 remapvertices = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1355                 mesh->num_vertices = Mod_BuildVertexRemapTableFromElements(mesh->num_triangles * 3, mesh->data_element3i, pheader->numverts, remapvertices);
1356                 for (j = 0;j < mesh->num_triangles * 3;j++)
1357                         mesh->data_element3i[j] = remapvertices[mesh->data_element3i[j]];
1358                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1359                 mesh->data_texcoordtexture2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
1360                 for (j = 0;j < pheader->numverts;j++)
1361                 {
1362                         if (remapvertices[j] >= 0)
1363                         {
1364                                 mesh->data_texcoordtexture2f[remapvertices[j]*2+0] = outtexcoord2f[j*2+0];
1365                                 mesh->data_texcoordtexture2f[remapvertices[j]*2+1] = outtexcoord2f[j*2+1];
1366                         }
1367                 }
1368                 mesh->num_vertexboneweights = 0;
1369                 for (j = 0;j < pheader->numverts;j++)
1370                         if (remapvertices[j] >= 0)
1371                                 mesh->num_vertexboneweights += vertbonecounts[remapvertices[j]];
1372                 mesh->data_vertexboneweights = Mem_Alloc(loadmodel->mempool, mesh->num_vertexboneweights * sizeof(surfmeshvertexboneweight_t));
1373                 mesh->num_vertexboneweights = 0;
1374                 // note this vertexboneweight ordering requires that the remapvertices array is sequential numbers (separated by -1 values for omitted vertices)
1375                 l = 0;
1376                 for (j = 0;j < pheader->numverts;j++)
1377                 {
1378                         if (remapvertices[j] < 0)
1379                         {
1380                                 l += vertbonecounts[j];
1381                                 continue;
1382                         }
1383                         for (k = 0;k < vertbonecounts[j];k++)
1384                         {
1385                                 // this format really should have had a per vertexweight weight value...
1386                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].vertexindex = remapvertices[j];
1387                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].boneindex = verts[l].bonenum;
1388                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3] = 1.0f / vertbonecounts[j];
1389                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[0] = verts[l].origin[0] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1390                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[1] = verts[l].origin[1] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1391                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[2] = verts[l].origin[2] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1392                                 mesh->num_vertexboneweights++;
1393                                 l++;
1394                         }
1395                 }
1396                 shadername = (char *) (pheader->lump_shaders.start + pbase) + i * 32;
1397                 // since zym models do not have named sections, reuse their shader
1398                 // name as the section name
1399                 if (shadername[0])
1400                         Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, shadername, shadername);
1401                 else
1402                         for (j = 0;j < loadmodel->numskins;j++)
1403                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i + j * loadmodel->num_surfaces, NULL);
1404
1405                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
1406                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1407                 Mod_Alias_Mesh_CompileFrameZero(mesh);
1408
1409                 surface = loadmodel->data_surfaces + i;
1410                 surface->groupmesh = mesh;
1411                 surface->texture = loadmodel->data_textures + i;
1412                 surface->num_firsttriangle = 0;
1413                 surface->num_triangles = mesh->num_triangles;
1414                 surface->num_firstvertex = 0;
1415                 surface->num_vertices = mesh->num_vertices;
1416         }
1417
1418         Mem_Free(vertbonecounts);
1419         Mem_Free(verts);
1420         Mem_Free(outtexcoord2f);
1421 }
1422