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 cvar_t r_skeletal_debugbone = {0, "r_skeletal_debugbone", "-1", "development cvar for testing skeletal model code"};
  26 cvar_t r_skeletal_debugbonecomponent = {0, "r_skeletal_debugbonecomponent", "3", "development cvar for testing skeletal model code"};
  27 cvar_t r_skeletal_debugbonevalue = {0, "r_skeletal_debugbonevalue", "100", "development cvar for testing skeletal model code"};
  28 cvar_t r_skeletal_debugtranslatex = {0, "r_skeletal_debugtranslatex", "1", "development cvar for testing skeletal model code"};
  29 cvar_t r_skeletal_debugtranslatey = {0, "r_skeletal_debugtranslatey", "1", "development cvar for testing skeletal model code"};
  30 cvar_t r_skeletal_debugtranslatez = {0, "r_skeletal_debugtranslatez", "1", "development cvar for testing skeletal model code"};
  31
  32 void Mod_AliasInit (void)
  33 {
  34         Cvar_RegisterVariable(&r_skeletal_debugbone);
  35         Cvar_RegisterVariable(&r_skeletal_debugbonecomponent);
  36         Cvar_RegisterVariable(&r_skeletal_debugbonevalue);
  37         Cvar_RegisterVariable(&r_skeletal_debugtranslatex);
  38         Cvar_RegisterVariable(&r_skeletal_debugtranslatey);
  39         Cvar_RegisterVariable(&r_skeletal_debugtranslatez);
  40 }
  41
  42 void Mod_Alias_GetMesh_Vertex3f(const model_t *model, const frameblend_t *frameblend, const surfmesh_t *mesh, float *out3f)
  43 {
  44         if (mesh->num_vertexboneweights)
  45         {
  46                 int i, k, blends;
  47                 surfmeshvertexboneweight_t *v;
  48                 float *out, *matrix, m[12], bonepose[256][12];
  49                 // vertex weighted skeletal
  50                 // interpolate matrices and concatenate them to their parents
  51                 for (i = 0;i < model->num_bones;i++)
  52                 {
  53                         for (k = 0;k < 12;k++)
  54                                 m[k] = 0;
  55                         for (blends = 0;blends < 4 && frameblend[blends].lerp > 0;blends++)
  56                         {
  57                                 matrix = model->data_poses + (frameblend[blends].frame * model->num_bones + i) * 12;
  58                                 for (k = 0;k < 12;k++)
  59                                         m[k] += matrix[k] * frameblend[blends].lerp;
  60                         }
  61                         if (i == r_skeletal_debugbone.integer)
  62                                 m[r_skeletal_debugbonecomponent.integer % 12] += r_skeletal_debugbonevalue.value;
  63                         m[3] *= r_skeletal_debugtranslatex.value;
  64                         m[7] *= r_skeletal_debugtranslatey.value;
  65                         m[11] *= r_skeletal_debugtranslatez.value;
  66                         if (model->data_bones[i].parent >= 0)
  67                                 R_ConcatTransforms(bonepose[model->data_bones[i].parent], m, bonepose[i]);
  68                         else
  69                                 for (k = 0;k < 12;k++)
  70                                         bonepose[i][k] = m[k];
  71                 }
  72                 // blend the vertex bone weights
  73                 memset(out3f, 0, mesh->num_vertices * sizeof(float[3]));
  74                 v = mesh->data_vertexboneweights;
  75                 for (i = 0;i < mesh->num_vertexboneweights;i++, v++)
  76                 {
  77                         out = out3f + v->vertexindex * 3;
  78                         matrix = bonepose[v->boneindex];
  79                         // FIXME: this can very easily be optimized with SSE or 3DNow
  80                         out[0] += v->origin[0] * matrix[0] + v->origin[1] * matrix[1] + v->origin[2] * matrix[ 2] + v->origin[3] * matrix[ 3];
  81                         out[1] += v->origin[0] * matrix[4] + v->origin[1] * matrix[5] + v->origin[2] * matrix[ 6] + v->origin[3] * matrix[ 7];
  82                         out[2] += v->origin[0] * matrix[8] + v->origin[1] * matrix[9] + v->origin[2] * matrix[10] + v->origin[3] * matrix[11];
  83                 }
  84         }
  85         else
  86         {
  87                 int i, vertcount;
  88                 float lerp1, lerp2, lerp3, lerp4;
  89                 const float *vertsbase, *verts1, *verts2, *verts3, *verts4;
  90                 // vertex morph
  91                 if (!mesh->data_morphvertex3f)
  92                         Host_Error("model %s has no skeletal or vertex morph animation data", model->name);
  93                 vertsbase = mesh->data_morphvertex3f;
  94                 vertcount = mesh->num_vertices;
  95                 verts1 = vertsbase + frameblend[0].frame * vertcount * 3;
  96                 lerp1 = frameblend[0].lerp;
  97                 if (frameblend[1].lerp)
  98                 {
  99                         verts2 = vertsbase + frameblend[1].frame * vertcount * 3;
 100                         lerp2 = frameblend[1].lerp;
 101                         if (frameblend[2].lerp)
 102                         {
 103                                 verts3 = vertsbase + frameblend[2].frame * vertcount * 3;
 104                                 lerp3 = frameblend[2].lerp;
 105                                 if (frameblend[3].lerp)
 106                                 {
 107                                         verts4 = vertsbase + frameblend[3].frame * vertcount * 3;
 108                                         lerp4 = frameblend[3].lerp;
 109                                         for (i = 0;i < vertcount * 3;i++)
 110                                                 VectorMAMAMAM(lerp1, verts1 + i, lerp2, verts2 + i, lerp3, verts3 + i, lerp4, verts4 + i, out3f + i);
 111                                 }
 112                                 else
 113                                         for (i = 0;i < vertcount * 3;i++)
 114                                                 VectorMAMAM(lerp1, verts1 + i, lerp2, verts2 + i, lerp3, verts3 + i, out3f + i);
 115                         }
 116                         else
 117                                 for (i = 0;i < vertcount * 3;i++)
 118                                         VectorMAM(lerp1, verts1 + i, lerp2, verts2 + i, out3f + i);
 119                 }
 120                 else
 121                         memcpy(out3f, verts1, vertcount * sizeof(float[3]));
 122         }
 123 }
 124
 125 int Mod_Alias_GetTagMatrix(const model_t *model, int poseframe, int tagindex, matrix4x4_t *outmatrix)
 126 {
 127         const float *boneframe;
 128         float tempbonematrix[12], bonematrix[12];
 129         *outmatrix = identitymatrix;
 130         if (model->num_bones)
 131         {
 132                 if (tagindex < 0 || tagindex >= model->num_bones)
 133                         return 4;
 134                 if (poseframe >= model->num_poses)
 135                         return 6;
 136                 boneframe = model->data_poses + poseframe * model->num_bones * 12;
 137                 memcpy(bonematrix, boneframe + tagindex * 12, sizeof(float[12]));
 138                 while (model->data_bones[tagindex].parent >= 0)
 139                 {
 140                         memcpy(tempbonematrix, bonematrix, sizeof(float[12]));
 141                         R_ConcatTransforms(boneframe + model->data_bones[tagindex].parent * 12, tempbonematrix, bonematrix);
 142                         tagindex = model->data_bones[tagindex].parent;
 143                 }
 144                 outmatrix->m[0][0] = bonematrix[0];
 145                 outmatrix->m[0][1] = bonematrix[1];
 146                 outmatrix->m[0][2] = bonematrix[2];
 147                 outmatrix->m[0][3] = bonematrix[3];
 148                 outmatrix->m[1][0] = bonematrix[4];
 149                 outmatrix->m[1][1] = bonematrix[5];
 150                 outmatrix->m[1][2] = bonematrix[6];
 151                 outmatrix->m[1][3] = bonematrix[7];
 152                 outmatrix->m[2][0] = bonematrix[8];
 153                 outmatrix->m[2][1] = bonematrix[9];
 154                 outmatrix->m[2][2] = bonematrix[10];
 155                 outmatrix->m[2][3] = bonematrix[11];
 156                 outmatrix->m[3][0] = 0;
 157                 outmatrix->m[3][1] = 0;
 158                 outmatrix->m[3][2] = 0;
 159                 outmatrix->m[3][3] = 1;
 160         }
 161         else if (model->num_tags)
 162         {
 163                 if (tagindex < 0 || tagindex >= model->num_tags)
 164                         return 4;
 165                 if (poseframe >= model->num_tagframes)
 166                         return 6;
 167                 *outmatrix = model->data_tags[poseframe * model->num_tags + tagindex].matrix;
 168         }
 169         return 0;
 170 }
 171
 172 int Mod_Alias_GetTagIndexForName(const model_t *model, unsigned int skin, const char *tagname)
 173 {
 174         int i;
 175         if (model->data_overridetagnamesforskin && skin < (unsigned int)model->numskins && model->data_overridetagnamesforskin[(unsigned int)skin].num_overridetagnames)
 176                 for (i = 0;i < model->data_overridetagnamesforskin[skin].num_overridetagnames;i++)
 177                         if (!strcasecmp(tagname, model->data_overridetagnamesforskin[skin].data_overridetagnames[i].name))
 178                                 return i + 1;
 179         if (model->num_bones)
 180                 for (i = 0;i < model->num_bones;i++)
 181                         if (!strcasecmp(tagname, model->data_bones[i].name))
 182                                 return i + 1;
 183         if (model->num_tags)
 184                 for (i = 0;i < model->num_tags;i++)
 185                         if (!strcasecmp(tagname, model->data_tags[i].name))
 186                                 return i + 1;
 187         return 0;
 188 }
 189
 190 static void Mod_Alias_Mesh_CompileFrameZero(surfmesh_t *mesh)
 191 {
 192         frameblend_t frameblend[4] = {{0, 1}, {0, 0}, {0, 0}, {0, 0}};
 193         mesh->data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[3][4]));
 194         mesh->data_svector3f = mesh->data_vertex3f + mesh->num_vertices * 3;
 195         mesh->data_tvector3f = mesh->data_vertex3f + mesh->num_vertices * 6;
 196         mesh->data_normal3f = mesh->data_vertex3f + mesh->num_vertices * 9;
 197         Mod_Alias_GetMesh_Vertex3f(loadmodel, frameblend, mesh, mesh->data_vertex3f);
 198         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, true);
 199 }
 200
 201 static void Mod_MDLMD2MD3_TraceBox(model_t *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
 202 {
 203         int i;
 204         float segmentmins[3], segmentmaxs[3];
 205         frameblend_t frameblend[4];
 206         msurface_t *surface;
 207         surfmesh_t *mesh;
 208         memset(trace, 0, sizeof(*trace));
 209         trace->fraction = 1;
 210         trace->realfraction = 1;
 211         trace->hitsupercontentsmask = hitsupercontentsmask;
 212         memset(frameblend, 0, sizeof(frameblend));
 213         frameblend[0].frame = frame;
 214         frameblend[0].lerp = 1;
 215         if (VectorLength2(boxmins) + VectorLength2(boxmaxs) == 0)
 216         {
 217                 // line trace
 218                 segmentmins[0] = min(start[0], end[0]) - 1;
 219                 segmentmins[1] = min(start[1], end[1]) - 1;
 220                 segmentmins[2] = min(start[2], end[2]) - 1;
 221                 segmentmaxs[0] = max(start[0], end[0]) + 1;
 222                 segmentmaxs[1] = max(start[1], end[1]) + 1;
 223                 segmentmaxs[2] = max(start[2], end[2]) + 1;
 224                 for (i = 0, surface = model->data_surfaces;i < model->num_surfaces;i++, surface++)
 225                 {
 226                         mesh = surface->groupmesh;
 227                         Mod_Alias_GetMesh_Vertex3f(model, frameblend, mesh, varray_vertex3f);
 228                         Collision_TraceLineTriangleMeshFloat(trace, start, end, mesh->num_triangles, mesh->data_element3i, varray_vertex3f, SUPERCONTENTS_SOLID, segmentmins, segmentmaxs);
 229                 }
 230         }
 231         else
 232         {
 233                 // box trace, performed as brush trace
 234                 colbrushf_t *thisbrush_start, *thisbrush_end;
 235                 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
 236                 segmentmins[0] = min(start[0], end[0]) + boxmins[0] - 1;
 237                 segmentmins[1] = min(start[1], end[1]) + boxmins[1] - 1;
 238                 segmentmins[2] = min(start[2], end[2]) + boxmins[2] - 1;
 239                 segmentmaxs[0] = max(start[0], end[0]) + boxmaxs[0] + 1;
 240                 segmentmaxs[1] = max(start[1], end[1]) + boxmaxs[1] + 1;
 241                 segmentmaxs[2] = max(start[2], end[2]) + boxmaxs[2] + 1;
 242                 VectorAdd(start, boxmins, boxstartmins);
 243                 VectorAdd(start, boxmaxs, boxstartmaxs);
 244                 VectorAdd(end, boxmins, boxendmins);
 245                 VectorAdd(end, boxmaxs, boxendmaxs);
 246                 thisbrush_start = Collision_BrushForBox(&identitymatrix, boxstartmins, boxstartmaxs);
 247                 thisbrush_end = Collision_BrushForBox(&identitymatrix, boxendmins, boxendmaxs);
 248                 for (i = 0, surface = model->data_surfaces;i < model->num_surfaces;i++, surface++)
 249                 {
 250                         mesh = surface->groupmesh;
 251                         Mod_Alias_GetMesh_Vertex3f(model, frameblend, mesh, varray_vertex3f);
 252                         Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, mesh->num_triangles, mesh->data_element3i, varray_vertex3f, SUPERCONTENTS_SOLID, segmentmins, segmentmaxs);
 253                 }
 254         }
 255 }
 256
 257 static void Mod_CalcAliasModelBBoxes (void)
 258 {
 259         int vnum, meshnum;
 260         float dist, yawradius, radius;
 261         surfmesh_t *mesh;
 262         float *v;
 263         VectorClear(loadmodel->normalmins);
 264         VectorClear(loadmodel->normalmaxs);
 265         yawradius = 0;
 266         radius = 0;
 267         for (meshnum = 0;meshnum < loadmodel->num_surfaces;meshnum++)
 268         {
 269                 mesh = loadmodel->meshlist[meshnum];
 270                 for (vnum = 0, v = mesh->data_morphvertex3f;vnum < mesh->num_vertices * mesh->num_morphframes;vnum++, v += 3)
 271                 {
 272                         if (loadmodel->normalmins[0] > v[0]) loadmodel->normalmins[0] = v[0];
 273                         if (loadmodel->normalmins[1] > v[1]) loadmodel->normalmins[1] = v[1];
 274                         if (loadmodel->normalmins[2] > v[2]) loadmodel->normalmins[2] = v[2];
 275                         if (loadmodel->normalmaxs[0] < v[0]) loadmodel->normalmaxs[0] = v[0];
 276                         if (loadmodel->normalmaxs[1] < v[1]) loadmodel->normalmaxs[1] = v[1];
 277                         if (loadmodel->normalmaxs[2] < v[2]) loadmodel->normalmaxs[2] = v[2];
 278                         dist = v[0] * v[0] + v[1] * v[1];
 279                         if (yawradius < dist)
 280                                 yawradius = dist;
 281                         dist += v[2] * v[2];
 282                         if (radius < dist)
 283                                 radius = dist;
 284                 }
 285         }
 286         radius = sqrt(radius);
 287         yawradius = sqrt(yawradius);
 288         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -yawradius;
 289         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = yawradius;
 290         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 291         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 292         loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -radius;
 293         loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = radius;
 294         loadmodel->radius = radius;
 295         loadmodel->radius2 = radius * radius;
 296 }
 297
 298 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int *vertremap)
 299 {
 300         int i, j;
 301         vec3_t temp;
 302         for (i = 0;i < inverts;i++)
 303         {
 304                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
 305                         continue;
 306                 temp[0] = v[i].v[0] * scale[0] + translate[0];
 307                 temp[1] = v[i].v[1] * scale[1] + translate[1];
 308                 temp[2] = v[i].v[2] * scale[2] + translate[2];
 309                 j = vertremap[i]; // not onseam
 310                 if (j >= 0)
 311                         VectorCopy(temp, out3f + j * 3);
 312                 j = vertremap[i+inverts]; // onseam
 313                 if (j >= 0)
 314                         VectorCopy(temp, out3f + j * 3);
 315         }
 316 }
 317
 318 static void Mod_MDL_LoadFrames (unsigned char* datapointer, int inverts, vec3_t scale, vec3_t translate, int *vertremap)
 319 {
 320         int i, f, pose, groupframes;
 321         float interval;
 322         daliasframetype_t *pframetype;
 323         daliasframe_t *pinframe;
 324         daliasgroup_t *group;
 325         daliasinterval_t *intervals;
 326         animscene_t *scene;
 327         pose = 0;
 328         scene = loadmodel->animscenes;
 329         for (f = 0;f < loadmodel->numframes;f++)
 330         {
 331                 pframetype = (daliasframetype_t *)datapointer;
 332                 datapointer += sizeof(daliasframetype_t);
 333                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 334                 {
 335                         // a single frame is still treated as a group
 336                         interval = 0.1f;
 337                         groupframes = 1;
 338                 }
 339                 else
 340                 {
 341                         // read group header
 342                         group = (daliasgroup_t *)datapointer;
 343                         datapointer += sizeof(daliasgroup_t);
 344                         groupframes = LittleLong (group->numframes);
 345
 346                         // intervals (time per frame)
 347                         intervals = (daliasinterval_t *)datapointer;
 348                         datapointer += sizeof(daliasinterval_t) * groupframes;
 349
 350                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 351                         if (interval < 0.01f)
 352                         {
 353                                 Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
 354                                 interval = 0.1f;
 355                         }
 356                 }
 357
 358                 // get scene name from first frame
 359                 pinframe = (daliasframe_t *)datapointer;
 360
 361                 strcpy(scene->name, pinframe->name);
 362                 scene->firstframe = pose;
 363                 scene->framecount = groupframes;
 364                 scene->framerate = 1.0f / interval;
 365                 scene->loop = true;
 366                 scene++;
 367
 368                 // read frames
 369                 for (i = 0;i < groupframes;i++)
 370                 {
 371                         pinframe = (daliasframe_t *)datapointer;
 372                         datapointer += sizeof(daliasframe_t);
 373                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->meshlist[0]->data_morphvertex3f + pose * loadmodel->meshlist[0]->num_vertices * 3, vertremap);
 374                         datapointer += sizeof(trivertx_t) * inverts;
 375                         pose++;
 376                 }
 377         }
 378 }
 379
 380 static skinframe_t missingskinframe;
 381 static void Mod_BuildAliasSkinFromSkinFrame(texture_t *skin, skinframe_t *skinframe)
 382 {
 383         // hack
 384         if (skinframe == NULL)
 385         {
 386                 skinframe = &missingskinframe;
 387                 memset(skinframe, 0, sizeof(*skinframe));
 388                 skinframe->base = r_texture_notexture;
 389         }
 390
 391         skin->skin = *skinframe;
 392         skin->currentframe = skin;
 393         skin->basematerialflags = MATERIALFLAG_WALL;
 394         if (skin->skin.fog)
 395                 skin->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
 396         skin->currentmaterialflags = skin->basematerialflags;
 397 }
 398
 399 static void Mod_BuildAliasSkinsFromSkinFiles(texture_t *skin, skinfile_t *skinfile, char *meshname, char *shadername)
 400 {
 401         int i;
 402         skinfileitem_t *skinfileitem;
 403         skinframe_t tempskinframe;
 404         if (skinfile)
 405         {
 406                 // the skin += loadmodel->num_surfaces part of this is because data_textures on alias models is arranged as [numskins][numsurfaces]
 407                 for (i = 0;skinfile;skinfile = skinfile->next, i++, skin += loadmodel->num_surfaces)
 408                 {
 409                         memset(skin, 0, sizeof(*skin));
 410                         for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = skinfileitem->next)
 411                         {
 412                                 // leave the skin unitialized (nodraw) if the replacement is "common/nodraw" or "textures/common/nodraw"
 413                                 if (!strcmp(skinfileitem->name, meshname) && strcmp(skinfileitem->replacement, "common/nodraw") && strcmp(skinfileitem->replacement, "textures/common/nodraw"))
 414                                 {
 415                                         memset(&tempskinframe, 0, sizeof(tempskinframe));
 416                                         if (Mod_LoadSkinFrame(&tempskinframe, skinfileitem->replacement, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, true, true))
 417                                                 Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 418                                         else
 419                                         {
 420                                                 if (cls.state != ca_dedicated)
 421                                                         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);
 422                                                 if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, true, true))
 423                                                         Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 424                                                 else
 425                                                 {
 426                                                         if (cls.state != ca_dedicated)
 427                                                                 Con_Printf("failed to load skin \"%s\"\n", shadername);
 428                                                         Mod_BuildAliasSkinFromSkinFrame(skin, NULL);
 429                                                 }
 430                                         }
 431                                 }
 432                         }
 433                 }
 434         }
 435         else
 436         {
 437                 memset(&tempskinframe, 0, sizeof(tempskinframe));
 438                 if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, true, true))
 439                         Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 440                 else
 441                 {
 442                         if (cls.state != ca_dedicated)
 443                                 Con_Printf("Can't find texture \"%s\" for mesh \"%s\", using grey checkerboard\n", shadername, meshname);
 444                         Mod_BuildAliasSkinFromSkinFrame(skin, NULL);
 445                 }
 446         }
 447 }
 448
 449 #define BOUNDI(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%d exceeds %d - %d)", loadmodel->name, VALUE, MIN, MAX);
 450 #define BOUNDF(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%f exceeds %f - %f)", loadmodel->name, VALUE, MIN, MAX);
 451 void Mod_IDP0_Load(model_t *mod, void *buffer, void *bufferend)
 452 {
 453         int i, j, version, totalskins, skinwidth, skinheight, groupframes, groupskins, numverts;
 454         float scales, scalet, scale[3], translate[3], interval;
 455         msurface_t *surface;
 456         unsigned char *data;
 457         mdl_t *pinmodel;
 458         stvert_t *pinstverts;
 459         dtriangle_t *pintriangles;
 460         daliasskintype_t *pinskintype;
 461         daliasskingroup_t *pinskingroup;
 462         daliasskininterval_t *pinskinintervals;
 463         daliasframetype_t *pinframetype;
 464         daliasgroup_t *pinframegroup;
 465         unsigned char *datapointer, *startframes, *startskins;
 466         char name[MAX_QPATH];
 467         skinframe_t tempskinframe;
 468         animscene_t *tempskinscenes;
 469         texture_t *tempaliasskins;
 470         float *vertst;
 471         int *vertonseam, *vertremap;
 472         skinfile_t *skinfiles;
 473
 474         datapointer = (unsigned char *)buffer;
 475         pinmodel = (mdl_t *)datapointer;
 476         datapointer += sizeof(mdl_t);
 477
 478         version = LittleLong (pinmodel->version);
 479         if (version != ALIAS_VERSION)
 480                 Host_Error ("%s has wrong version number (%i should be %i)",
 481                                  loadmodel->name, version, ALIAS_VERSION);
 482
 483         loadmodel->type = mod_alias;
 484         loadmodel->DrawSky = NULL;
 485         loadmodel->Draw = R_Q1BSP_Draw;
 486         loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
 487         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
 488         loadmodel->DrawLight = R_Q1BSP_DrawLight;
 489         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 490
 491         loadmodel->num_surfaces = 1;
 492         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
 493         loadmodel->nummeshes = loadmodel->num_surfaces;
 494         data = (unsigned char *)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));
 495         loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
 496         loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
 497         loadmodel->meshlist = (surfmesh_t **)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
 498         for (i = 0;i < loadmodel->num_surfaces;i++)
 499         {
 500                 loadmodel->surfacelist[i] = i;
 501                 loadmodel->meshlist[i] = (surfmesh_t *)data;data += sizeof(surfmesh_t);
 502         }
 503
 504         loadmodel->numskins = LittleLong(pinmodel->numskins);
 505         BOUNDI(loadmodel->numskins,0,65536);
 506         skinwidth = LittleLong (pinmodel->skinwidth);
 507         BOUNDI(skinwidth,0,65536);
 508         skinheight = LittleLong (pinmodel->skinheight);
 509         BOUNDI(skinheight,0,65536);
 510         numverts = LittleLong(pinmodel->numverts);
 511         BOUNDI(numverts,0,65536);
 512         loadmodel->meshlist[0]->num_triangles = LittleLong(pinmodel->numtris);
 513         BOUNDI(loadmodel->meshlist[0]->num_triangles,0,65536);
 514         loadmodel->numframes = LittleLong(pinmodel->numframes);
 515         BOUNDI(loadmodel->numframes,0,65536);
 516         loadmodel->synctype = (synctype_t)LittleLong (pinmodel->synctype);
 517         BOUNDI(loadmodel->synctype,0,2);
 518         loadmodel->flags = LittleLong (pinmodel->flags);
 519
 520         for (i = 0;i < 3;i++)
 521         {
 522                 scale[i] = LittleFloat (pinmodel->scale[i]);
 523                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 524         }
 525
 526         startskins = datapointer;
 527         totalskins = 0;
 528         for (i = 0;i < loadmodel->numskins;i++)
 529         {
 530                 pinskintype = (daliasskintype_t *)datapointer;
 531                 datapointer += sizeof(daliasskintype_t);
 532                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 533                         groupskins = 1;
 534                 else
 535                 {
 536                         pinskingroup = (daliasskingroup_t *)datapointer;
 537                         datapointer += sizeof(daliasskingroup_t);
 538                         groupskins = LittleLong(pinskingroup->numskins);
 539                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 540                 }
 541
 542                 for (j = 0;j < groupskins;j++)
 543                 {
 544                         datapointer += skinwidth * skinheight;
 545                         totalskins++;
 546                 }
 547         }
 548
 549         pinstverts = (stvert_t *)datapointer;
 550         datapointer += sizeof(stvert_t) * numverts;
 551
 552         pintriangles = (dtriangle_t *)datapointer;
 553         datapointer += sizeof(dtriangle_t) * loadmodel->meshlist[0]->num_triangles;
 554
 555         startframes = datapointer;
 556         loadmodel->meshlist[0]->num_morphframes = 0;
 557         for (i = 0;i < loadmodel->numframes;i++)
 558         {
 559                 pinframetype = (daliasframetype_t *)datapointer;
 560                 datapointer += sizeof(daliasframetype_t);
 561                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 562                         groupframes = 1;
 563                 else
 564                 {
 565                         pinframegroup = (daliasgroup_t *)datapointer;
 566                         datapointer += sizeof(daliasgroup_t);
 567                         groupframes = LittleLong(pinframegroup->numframes);
 568                         datapointer += sizeof(daliasinterval_t) * groupframes;
 569                 }
 570
 571                 for (j = 0;j < groupframes;j++)
 572                 {
 573                         datapointer += sizeof(daliasframe_t);
 574                         datapointer += sizeof(trivertx_t) * numverts;
 575                         loadmodel->meshlist[0]->num_morphframes++;
 576                 }
 577         }
 578
 579         // store texture coordinates into temporary array, they will be stored
 580         // after usage is determined (triangle data)
 581         vertst = (float *)Mem_Alloc(tempmempool, numverts * 2 * sizeof(float[2]));
 582         vertremap = (int *)Mem_Alloc(tempmempool, numverts * 3 * sizeof(int));
 583         vertonseam = vertremap + numverts * 2;
 584
 585         scales = 1.0 / skinwidth;
 586         scalet = 1.0 / skinheight;
 587         for (i = 0;i < numverts;i++)
 588         {
 589                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 590                 vertst[i*2+0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 591                 vertst[i*2+1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 592                 vertst[(i+numverts)*2+0] = vertst[i*2+0] + 0.5;
 593                 vertst[(i+numverts)*2+1] = vertst[i*2+1];
 594         }
 595
 596 // load triangle data
 597         loadmodel->meshlist[0]->data_element3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->meshlist[0]->num_triangles);
 598
 599         // read the triangle elements
 600         for (i = 0;i < loadmodel->meshlist[0]->num_triangles;i++)
 601                 for (j = 0;j < 3;j++)
 602                         loadmodel->meshlist[0]->data_element3i[i*3+j] = LittleLong(pintriangles[i].vertindex[j]);
 603         // validate (note numverts is used because this is the original data)
 604         Mod_ValidateElements(loadmodel->meshlist[0]->data_element3i, loadmodel->meshlist[0]->num_triangles, numverts, __FILE__, __LINE__);
 605         // now butcher the elements according to vertonseam and tri->facesfront
 606         // and then compact the vertex set to remove duplicates
 607         for (i = 0;i < loadmodel->meshlist[0]->num_triangles;i++)
 608                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 609                         for (j = 0;j < 3;j++)
 610                                 if (vertonseam[loadmodel->meshlist[0]->data_element3i[i*3+j]])
 611                                         loadmodel->meshlist[0]->data_element3i[i*3+j] += numverts;
 612         // count the usage
 613         // (this uses vertremap to count usage to save some memory)
 614         for (i = 0;i < numverts*2;i++)
 615                 vertremap[i] = 0;
 616         for (i = 0;i < loadmodel->meshlist[0]->num_triangles*3;i++)
 617                 vertremap[loadmodel->meshlist[0]->data_element3i[i]]++;
 618         // build remapping table and compact array
 619         loadmodel->meshlist[0]->num_vertices = 0;
 620         for (i = 0;i < numverts*2;i++)
 621         {
 622                 if (vertremap[i])
 623                 {
 624                         vertremap[i] = loadmodel->meshlist[0]->num_vertices;
 625                         vertst[loadmodel->meshlist[0]->num_vertices*2+0] = vertst[i*2+0];
 626                         vertst[loadmodel->meshlist[0]->num_vertices*2+1] = vertst[i*2+1];
 627                         loadmodel->meshlist[0]->num_vertices++;
 628                 }
 629                 else
 630                         vertremap[i] = -1; // not used at all
 631         }
 632         // remap the elements to the new vertex set
 633         for (i = 0;i < loadmodel->meshlist[0]->num_triangles * 3;i++)
 634                 loadmodel->meshlist[0]->data_element3i[i] = vertremap[loadmodel->meshlist[0]->data_element3i[i]];
 635         // store the texture coordinates
 636         loadmodel->meshlist[0]->data_texcoordtexture2f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * loadmodel->meshlist[0]->num_vertices);
 637         for (i = 0;i < loadmodel->meshlist[0]->num_vertices;i++)
 638         {
 639                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+0] = vertst[i*2+0];
 640                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+1] = vertst[i*2+1];
 641         }
 642
 643 // load the frames
 644         loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 645         loadmodel->meshlist[0]->data_morphvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * loadmodel->meshlist[0]->num_morphframes * loadmodel->meshlist[0]->num_vertices);
 646         loadmodel->meshlist[0]->data_neighbor3i = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_triangles * sizeof(int[3]));
 647         Mod_MDL_LoadFrames (startframes, numverts, scale, translate, vertremap);
 648         Mod_BuildTriangleNeighbors(loadmodel->meshlist[0]->data_neighbor3i, loadmodel->meshlist[0]->data_element3i, loadmodel->meshlist[0]->num_triangles);
 649         Mod_CalcAliasModelBBoxes();
 650         Mod_Alias_Mesh_CompileFrameZero(loadmodel->meshlist[0]);
 651
 652         Mem_Free(vertst);
 653         Mem_Free(vertremap);
 654
 655         // load the skins
 656         skinfiles = Mod_LoadSkinFiles();
 657         loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 658         loadmodel->num_textures = loadmodel->num_surfaces;
 659         loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * totalskins * sizeof(texture_t));
 660         if (skinfiles)
 661         {
 662                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures, skinfiles, "default", "");
 663                 Mod_FreeSkinFiles(skinfiles);
 664                 for (i = 0;i < loadmodel->numskins;i++)
 665                 {
 666                         loadmodel->skinscenes[i].firstframe = i;
 667                         loadmodel->skinscenes[i].framecount = 1;
 668                         loadmodel->skinscenes[i].loop = true;
 669                         loadmodel->skinscenes[i].framerate = 10;
 670                 }
 671         }
 672         else
 673         {
 674                 totalskins = 0;
 675                 datapointer = startskins;
 676                 for (i = 0;i < loadmodel->numskins;i++)
 677                 {
 678                         pinskintype = (daliasskintype_t *)datapointer;
 679                         datapointer += sizeof(daliasskintype_t);
 680
 681                         if (pinskintype->type == ALIAS_SKIN_SINGLE)
 682                         {
 683                                 groupskins = 1;
 684                                 interval = 0.1f;
 685                         }
 686                         else
 687                         {
 688                                 pinskingroup = (daliasskingroup_t *)datapointer;
 689                                 datapointer += sizeof(daliasskingroup_t);
 690
 691                                 groupskins = LittleLong (pinskingroup->numskins);
 692
 693                                 pinskinintervals = (daliasskininterval_t *)datapointer;
 694                                 datapointer += sizeof(daliasskininterval_t) * groupskins;
 695
 696                                 interval = LittleFloat(pinskinintervals[0].interval);
 697                                 if (interval < 0.01f)
 698                                 {
 699                                         Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
 700                                         interval = 0.1f;
 701                                 }
 702                         }
 703
 704                         sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 705                         loadmodel->skinscenes[i].firstframe = totalskins;
 706                         loadmodel->skinscenes[i].framecount = groupskins;
 707                         loadmodel->skinscenes[i].framerate = 1.0f / interval;
 708                         loadmodel->skinscenes[i].loop = true;
 709
 710                         for (j = 0;j < groupskins;j++)
 711                         {
 712                                 if (groupskins > 1)
 713                                         sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 714                                 else
 715                                         sprintf (name, "%s_%i", loadmodel->name, i);
 716                                 if (!Mod_LoadSkinFrame(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP, true, true))
 717                                         Mod_LoadSkinFrame_Internal(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_PICMIP, true, r_fullbrights.integer, (unsigned char *)datapointer, skinwidth, skinheight, 8, NULL, NULL);
 718                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + totalskins * loadmodel->num_surfaces, &tempskinframe);
 719                                 datapointer += skinwidth * skinheight;
 720                                 totalskins++;
 721                         }
 722                 }
 723                 // check for skins that don't exist in the model, but do exist as external images
 724                 // (this was added because yummyluv kept pestering me about support for it)
 725                 while (Mod_LoadSkinFrame(&tempskinframe, va("%s_%i", loadmodel->name, loadmodel->numskins), (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP, true, true))
 726                 {
 727                         // expand the arrays to make room
 728                         tempskinscenes = loadmodel->skinscenes;
 729                         loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 730                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 731                         Mem_Free(tempskinscenes);
 732
 733                         tempaliasskins = loadmodel->data_textures;
 734                         loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * (totalskins + 1) * sizeof(texture_t));
 735                         memcpy(loadmodel->data_textures, tempaliasskins, loadmodel->num_surfaces * totalskins * sizeof(texture_t));
 736                         Mem_Free(tempaliasskins);
 737
 738                         // store the info about the new skin
 739                         Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + totalskins * loadmodel->num_surfaces, &tempskinframe);
 740                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 741                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 742                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 743                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 744                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 745
 746                         //increase skin counts
 747                         loadmodel->numskins++;
 748                         totalskins++;
 749                 }
 750         }
 751
 752         surface = loadmodel->data_surfaces;
 753         surface->texture = loadmodel->data_textures;
 754         surface->groupmesh = loadmodel->meshlist[0];
 755         surface->num_firsttriangle = 0;
 756         surface->num_triangles = surface->groupmesh->num_triangles;
 757         surface->num_firstvertex = 0;
 758         surface->num_vertices = surface->groupmesh->num_vertices;
 759 }
 760
 761 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int numverts, int *vertremap)
 762 {
 763         int i;
 764         trivertx_t *in;
 765         for (i = 0;i < numverts;i++, out3f += 3)
 766         {
 767                 in = v + vertremap[i];
 768                 out3f[0] = in->v[0] * scale[0] + translate[0];
 769                 out3f[1] = in->v[1] * scale[1] + translate[1];
 770                 out3f[2] = in->v[2] * scale[2] + translate[2];
 771         }
 772 }
 773
 774 void Mod_IDP2_Load(model_t *mod, void *buffer, void *bufferend)
 775 {
 776         int i, j, k, hashindex, num, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end, numverts;
 777         float *stverts, s, t, scale[3], translate[3];
 778         unsigned char *data;
 779         msurface_t *surface;
 780         md2_t *pinmodel;
 781         unsigned char *base, *datapointer;
 782         md2frame_t *pinframe;
 783         char *inskin;
 784         md2triangle_t *intri;
 785         unsigned short *inst;
 786         struct md2verthash_s
 787         {
 788                 struct md2verthash_s *next;
 789                 int xyz;
 790                 float st[2];
 791         }
 792         *hash, **md2verthash, *md2verthashdata;
 793         skinframe_t tempskinframe;
 794         skinfile_t *skinfiles;
 795
 796         pinmodel = (md2_t *)buffer;
 797         base = (unsigned char *)buffer;
 798
 799         version = LittleLong (pinmodel->version);
 800         if (version != MD2ALIAS_VERSION)
 801                 Host_Error ("%s has wrong version number (%i should be %i)",
 802                         loadmodel->name, version, MD2ALIAS_VERSION);
 803
 804         loadmodel->type = mod_alias;
 805         loadmodel->DrawSky = NULL;
 806         loadmodel->Draw = R_Q1BSP_Draw;
 807         loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
 808         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
 809         loadmodel->DrawLight = R_Q1BSP_DrawLight;
 810         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 811
 812         if (LittleLong(pinmodel->num_tris) < 1 || LittleLong(pinmodel->num_tris) > 65536)
 813                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 814         if (LittleLong(pinmodel->num_xyz) < 1 || LittleLong(pinmodel->num_xyz) > 65536)
 815                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 816         if (LittleLong(pinmodel->num_frames) < 1 || LittleLong(pinmodel->num_frames) > 65536)
 817                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 818         if (LittleLong(pinmodel->num_skins) < 0 || LittleLong(pinmodel->num_skins) > 256)
 819                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 820
 821         end = LittleLong(pinmodel->ofs_end);
 822         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins) <= 0 || LittleLong(pinmodel->ofs_skins) >= end))
 823                 Host_Error ("%s is not a valid model", loadmodel->name);
 824         if (LittleLong(pinmodel->ofs_st) <= 0 || LittleLong(pinmodel->ofs_st) >= end)
 825                 Host_Error ("%s is not a valid model", loadmodel->name);
 826         if (LittleLong(pinmodel->ofs_tris) <= 0 || LittleLong(pinmodel->ofs_tris) >= end)
 827                 Host_Error ("%s is not a valid model", loadmodel->name);
 828         if (LittleLong(pinmodel->ofs_frames) <= 0 || LittleLong(pinmodel->ofs_frames) >= end)
 829                 Host_Error ("%s is not a valid model", loadmodel->name);
 830         if (LittleLong(pinmodel->ofs_glcmds) <= 0 || LittleLong(pinmodel->ofs_glcmds) >= end)
 831                 Host_Error ("%s is not a valid model", loadmodel->name);
 832
 833         loadmodel->num_surfaces = 1;
 834         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
 835         loadmodel->nummeshes = loadmodel->num_surfaces;
 836         data = (unsigned char *)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));
 837         loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
 838         loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
 839         loadmodel->meshlist = (surfmesh_t **)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
 840         for (i = 0;i < loadmodel->num_surfaces;i++)
 841         {
 842                 loadmodel->surfacelist[i] = i;
 843                 loadmodel->meshlist[i] = (surfmesh_t *)data;data += sizeof(surfmesh_t);
 844         }
 845
 846         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 847         numxyz = LittleLong(pinmodel->num_xyz);
 848         numst = LittleLong(pinmodel->num_st);
 849         loadmodel->meshlist[0]->num_triangles = LittleLong(pinmodel->num_tris);
 850         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 851         loadmodel->meshlist[0]->num_morphframes = loadmodel->numframes;
 852         loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 853
 854         loadmodel->flags = 0; // there are no MD2 flags
 855         loadmodel->synctype = ST_RAND;
 856
 857         // load the skins
 858         inskin = (char *)(base + LittleLong(pinmodel->ofs_skins));
 859         skinfiles = Mod_LoadSkinFiles();
 860         if (skinfiles)
 861         {
 862                 loadmodel->num_textures = loadmodel->num_surfaces;
 863                 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
 864                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures, skinfiles, "default", "");
 865                 Mod_FreeSkinFiles(skinfiles);
 866         }
 867         else if (loadmodel->numskins)
 868         {
 869                 // skins found (most likely not a player model)
 870                 loadmodel->num_textures = loadmodel->num_surfaces;
 871                 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
 872                 for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
 873                 {
 874                         if (Mod_LoadSkinFrame(&tempskinframe, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, true, true))
 875                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i * loadmodel->num_surfaces, &tempskinframe);
 876                         else
 877                         {
 878                                 Con_Printf("%s is missing skin \"%s\"\n", loadmodel->name, inskin);
 879                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i * loadmodel->num_surfaces, NULL);
 880                         }
 881                 }
 882         }
 883         else
 884         {
 885                 // no skins (most likely a player model)
 886                 loadmodel->numskins = 1;
 887                 loadmodel->num_textures = loadmodel->num_surfaces;
 888                 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
 889                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures, NULL);
 890         }
 891
 892         loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 893         for (i = 0;i < loadmodel->numskins;i++)
 894         {
 895                 loadmodel->skinscenes[i].firstframe = i;
 896                 loadmodel->skinscenes[i].framecount = 1;
 897                 loadmodel->skinscenes[i].loop = true;
 898                 loadmodel->skinscenes[i].framerate = 10;
 899         }
 900
 901         // load the triangles and stvert data
 902         inst = (unsigned short *)(base + LittleLong(pinmodel->ofs_st));
 903         intri = (md2triangle_t *)(base + LittleLong(pinmodel->ofs_tris));
 904         skinwidth = LittleLong(pinmodel->skinwidth);
 905         skinheight = LittleLong(pinmodel->skinheight);
 906
 907         stverts = (float *)Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 908         s = 1.0f / skinwidth;
 909         t = 1.0f / skinheight;
 910         for (i = 0;i < numst;i++)
 911         {
 912                 j = (unsigned short) LittleShort(inst[i*2+0]);
 913                 k = (unsigned short) LittleShort(inst[i*2+1]);
 914                 if (j >= skinwidth || k >= skinheight)
 915                 {
 916                         Con_Printf("%s has an invalid skin coordinate (%i %i) on vert %i, changing to 0 0\n", loadmodel->name, j, k, i);
 917                         j = 0;
 918                         k = 0;
 919                 }
 920                 stverts[i*2+0] = j * s;
 921                 stverts[i*2+1] = k * t;
 922         }
 923
 924         md2verthash = (struct md2verthash_s **)Mem_Alloc(tempmempool, 256 * sizeof(hash));
 925         md2verthashdata = (struct md2verthash_s *)Mem_Alloc(tempmempool, loadmodel->meshlist[0]->num_triangles * 3 * sizeof(*hash));
 926         // swap the triangle list
 927         num = 0;
 928         loadmodel->meshlist[0]->data_element3i = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_triangles * sizeof(int[3]));
 929         for (i = 0;i < loadmodel->meshlist[0]->num_triangles;i++)
 930         {
 931                 for (j = 0;j < 3;j++)
 932                 {
 933                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 934                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 935                         if (xyz >= numxyz)
 936                         {
 937                                 Con_Printf("%s has an invalid xyz index (%i) on triangle %i, resetting to 0\n", loadmodel->name, xyz, i);
 938                                 xyz = 0;
 939                         }
 940                         if (st >= numst)
 941                         {
 942                                 Con_Printf("%s has an invalid st index (%i) on triangle %i, resetting to 0\n", loadmodel->name, st, i);
 943                                 st = 0;
 944                         }
 945                         s = stverts[st*2+0];
 946                         t = stverts[st*2+1];
 947                         hashindex = (xyz * 17 + st) & 255;
 948                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 949                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 950                                         break;
 951                         if (hash == NULL)
 952                         {
 953                                 hash = md2verthashdata + num++;
 954                                 hash->xyz = xyz;
 955                                 hash->st[0] = s;
 956                                 hash->st[1] = t;
 957                                 hash->next = md2verthash[hashindex];
 958                                 md2verthash[hashindex] = hash;
 959                         }
 960                         loadmodel->meshlist[0]->data_element3i[i*3+j] = (hash - md2verthashdata);
 961                 }
 962         }
 963
 964         Mem_Free(stverts);
 965
 966         numverts = num;
 967         loadmodel->meshlist[0]->num_vertices = numverts;
 968         vertremap = (int *)Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 969         loadmodel->meshlist[0]->data_texcoordtexture2f = (float *)Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
 970         for (i = 0;i < num;i++)
 971         {
 972                 hash = md2verthashdata + i;
 973                 vertremap[i] = hash->xyz;
 974                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+0] = hash->st[0];
 975                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+1] = hash->st[1];
 976         }
 977
 978         Mem_Free(md2verthash);
 979         Mem_Free(md2verthashdata);
 980
 981         // load the frames
 982         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 983         loadmodel->meshlist[0]->data_morphvertex3f = (float *)Mem_Alloc(loadmodel->mempool, numverts * loadmodel->meshlist[0]->num_morphframes * sizeof(float[3]));
 984         for (i = 0;i < loadmodel->meshlist[0]->num_morphframes;i++)
 985         {
 986                 pinframe = (md2frame_t *)datapointer;
 987                 datapointer += sizeof(md2frame_t);
 988                 for (j = 0;j < 3;j++)
 989                 {
 990                         scale[j] = LittleFloat(pinframe->scale[j]);
 991                         translate[j] = LittleFloat(pinframe->translate[j]);
 992                 }
 993                 Mod_MD2_ConvertVerts(scale, translate, (trivertx_t *)datapointer, loadmodel->meshlist[0]->data_morphvertex3f + i * numverts * 3, numverts, vertremap);
 994                 datapointer += numxyz * sizeof(trivertx_t);
 995
 996                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 997                 loadmodel->animscenes[i].firstframe = i;
 998                 loadmodel->animscenes[i].framecount = 1;
 999                 loadmodel->animscenes[i].framerate = 10;
1000                 loadmodel->animscenes[i].loop = true;
1001         }
1002
1003         Mem_Free(vertremap);
1004
1005         loadmodel->meshlist[0]->data_neighbor3i = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_triangles * sizeof(int[3]));
1006         Mod_BuildTriangleNeighbors(loadmodel->meshlist[0]->data_neighbor3i, loadmodel->meshlist[0]->data_element3i, loadmodel->meshlist[0]->num_triangles);
1007         Mod_CalcAliasModelBBoxes();
1008         Mod_Alias_Mesh_CompileFrameZero(loadmodel->meshlist[0]);
1009
1010         surface = loadmodel->data_surfaces;
1011         surface->groupmesh = loadmodel->meshlist[0];
1012         surface->texture = loadmodel->data_textures;
1013         surface->num_firsttriangle = 0;
1014         surface->num_triangles = surface->groupmesh->num_triangles;
1015         surface->num_firstvertex = 0;
1016         surface->num_vertices = surface->groupmesh->num_vertices;
1017 }
1018
1019 void Mod_IDP3_Load(model_t *mod, void *buffer, void *bufferend)
1020 {
1021         int i, j, k, version;
1022         unsigned char *data;
1023         msurface_t *surface;
1024         surfmesh_t *mesh;
1025         md3modelheader_t *pinmodel;
1026         md3frameinfo_t *pinframe;
1027         md3mesh_t *pinmesh;
1028         md3tag_t *pintag;
1029         skinfile_t *skinfiles;
1030
1031         pinmodel = (md3modelheader_t *)buffer;
1032
1033         if (memcmp(pinmodel->identifier, "IDP3", 4))
1034                 Host_Error ("%s is not a MD3 (IDP3) file", loadmodel->name);
1035         version = LittleLong (pinmodel->version);
1036         if (version != MD3VERSION)
1037                 Host_Error ("%s has wrong version number (%i should be %i)",
1038                         loadmodel->name, version, MD3VERSION);
1039
1040         skinfiles = Mod_LoadSkinFiles();
1041         if (loadmodel->numskins < 1)
1042                 loadmodel->numskins = 1;
1043
1044         loadmodel->type = mod_alias;
1045         loadmodel->DrawSky = NULL;
1046         loadmodel->Draw = R_Q1BSP_Draw;
1047         loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
1048         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
1049         loadmodel->DrawLight = R_Q1BSP_DrawLight;
1050         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
1051         loadmodel->flags = LittleLong(pinmodel->flags);
1052         loadmodel->synctype = ST_RAND;
1053
1054         // set up some global info about the model
1055         loadmodel->numframes = LittleLong(pinmodel->num_frames);
1056         loadmodel->num_surfaces = LittleLong(pinmodel->num_meshes);
1057
1058         // make skinscenes for the skins (no groups)
1059         loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
1060         for (i = 0;i < loadmodel->numskins;i++)
1061         {
1062                 loadmodel->skinscenes[i].firstframe = i;
1063                 loadmodel->skinscenes[i].framecount = 1;
1064                 loadmodel->skinscenes[i].loop = true;
1065                 loadmodel->skinscenes[i].framerate = 10;
1066         }
1067
1068         // load frameinfo
1069         loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
1070         for (i = 0, pinframe = (md3frameinfo_t *)((unsigned char *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
1071         {
1072                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
1073                 loadmodel->animscenes[i].firstframe = i;
1074                 loadmodel->animscenes[i].framecount = 1;
1075                 loadmodel->animscenes[i].framerate = 10;
1076                 loadmodel->animscenes[i].loop = true;
1077         }
1078
1079         // load tags
1080         loadmodel->num_tagframes = loadmodel->numframes;
1081         loadmodel->num_tags = LittleLong(pinmodel->num_tags);
1082         loadmodel->data_tags = (aliastag_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_tagframes * loadmodel->num_tags * sizeof(aliastag_t));
1083         for (i = 0, pintag = (md3tag_t *)((unsigned char *)pinmodel + LittleLong(pinmodel->lump_tags));i < loadmodel->num_tagframes * loadmodel->num_tags;i++, pintag++)
1084         {
1085                 strcpy(loadmodel->data_tags[i].name, pintag->name);
1086                 loadmodel->data_tags[i].matrix = identitymatrix;
1087                 for (j = 0;j < 3;j++)
1088                 {
1089                         for (k = 0;k < 3;k++)
1090                                 loadmodel->data_tags[i].matrix.m[j][k] = LittleFloat(pintag->rotationmatrix[k * 3 + j]);
1091                         loadmodel->data_tags[i].matrix.m[j][3] = LittleFloat(pintag->origin[j]);
1092                 }
1093                 //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);
1094         }
1095
1096         // load meshes
1097         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
1098         loadmodel->nummeshes = loadmodel->num_surfaces;
1099         loadmodel->num_textures = loadmodel->num_surfaces;
1100         data = (unsigned char *)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));
1101         loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
1102         loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
1103         loadmodel->meshlist = (surfmesh_t **)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
1104         loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
1105         for (i = 0;i < loadmodel->num_surfaces;i++)
1106         {
1107                 loadmodel->surfacelist[i] = i;
1108                 loadmodel->meshlist[i] = (surfmesh_t *)data;data += sizeof(surfmesh_t);
1109         }
1110         for (i = 0, pinmesh = (md3mesh_t *)((unsigned char *)pinmodel + LittleLong(pinmodel->lump_meshes));i < loadmodel->num_surfaces;i++, pinmesh = (md3mesh_t *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_end)))
1111         {
1112                 if (memcmp(pinmesh->identifier, "IDP3", 4))
1113                         Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)");
1114                 mesh = loadmodel->meshlist[i];
1115                 mesh->num_morphframes = LittleLong(pinmesh->num_frames);
1116                 mesh->num_vertices = LittleLong(pinmesh->num_vertices);
1117                 mesh->num_triangles = LittleLong(pinmesh->num_triangles);
1118                 mesh->data_element3i = (int *)Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1119                 mesh->data_neighbor3i = (int *)Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1120                 mesh->data_texcoordtexture2f = (float *)Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
1121                 mesh->data_morphvertex3f = (float *)Mem_Alloc(loadmodel->mempool, mesh->num_vertices * mesh->num_morphframes * sizeof(float[3]));
1122                 for (j = 0;j < mesh->num_triangles * 3;j++)
1123                         mesh->data_element3i[j] = LittleLong(((int *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_elements)))[j]);
1124                 for (j = 0;j < mesh->num_vertices;j++)
1125                 {
1126                         mesh->data_texcoordtexture2f[j * 2 + 0] = LittleFloat(((float *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 0]);
1127                         mesh->data_texcoordtexture2f[j * 2 + 1] = LittleFloat(((float *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 1]);
1128                 }
1129                 for (j = 0;j < mesh->num_vertices * mesh->num_morphframes;j++)
1130                 {
1131                         mesh->data_morphvertex3f[j * 3 + 0] = LittleShort(((short *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 0]) * (1.0f / 64.0f);
1132                         mesh->data_morphvertex3f[j * 3 + 1] = LittleShort(((short *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 1]) * (1.0f / 64.0f);
1133                         mesh->data_morphvertex3f[j * 3 + 2] = LittleShort(((short *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 2]) * (1.0f / 64.0f);
1134                 }
1135
1136                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
1137                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1138                 Mod_Alias_Mesh_CompileFrameZero(mesh);
1139
1140                 if (LittleLong(pinmesh->num_shaders) >= 1)
1141                         Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, pinmesh->name, ((md3shader_t *)((unsigned char *) pinmesh + LittleLong(pinmesh->lump_shaders)))->name);
1142                 else
1143                         for (j = 0;j < loadmodel->numskins;j++)
1144                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i + j * loadmodel->num_surfaces, NULL);
1145
1146                 surface = loadmodel->data_surfaces + i;
1147                 surface->groupmesh = mesh;
1148                 surface->texture = loadmodel->data_textures + i;
1149                 surface->num_firsttriangle = 0;
1150                 surface->num_triangles = mesh->num_triangles;
1151                 surface->num_firstvertex = 0;
1152                 surface->num_vertices = mesh->num_vertices;
1153         }
1154         Mod_CalcAliasModelBBoxes();
1155         Mod_FreeSkinFiles(skinfiles);
1156 }
1157
1158 void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer, void *bufferend)
1159 {
1160         zymtype1header_t *pinmodel, *pheader;
1161         unsigned char *pbase;
1162         int i, j, k, l, numposes, *bonecount, *vertbonecounts, count, *renderlist, *renderlistend, *outelements, *remapvertices;
1163         float modelradius, corner[2], *poses, *intexcoord2f, *outtexcoord2f;
1164         zymvertex_t *verts, *vertdata;
1165         zymscene_t *scene;
1166         zymbone_t *bone;
1167         char *shadername;
1168         skinfile_t *skinfiles;
1169         unsigned char *data;
1170         msurface_t *surface;
1171         surfmesh_t *mesh;
1172
1173         pinmodel = (zymtype1header_t *)buffer;
1174         pbase = (unsigned char *)buffer;
1175         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
1176                 Host_Error ("Mod_ZYMOTICMODEL_Load: %s is not a zymotic model");
1177         if (BigLong(pinmodel->type) != 1)
1178                 Host_Error ("Mod_ZYMOTICMODEL_Load: only type 1 (skeletal pose) models are currently supported (name = %s)", loadmodel->name);
1179
1180         loadmodel->type = mod_alias;
1181         loadmodel->flags = 0; // there are no flags on zym models
1182         loadmodel->synctype = ST_RAND;
1183
1184         // byteswap header
1185         pheader = pinmodel;
1186         pheader->type = BigLong(pinmodel->type);
1187         pheader->filesize = BigLong(pinmodel->filesize);
1188         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
1189         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
1190         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
1191         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
1192         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
1193         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
1194         pheader->radius = BigFloat(pinmodel->radius);
1195         pheader->numverts = BigLong(pinmodel->numverts);
1196         pheader->numtris = BigLong(pinmodel->numtris);
1197         pheader->numshaders = BigLong(pinmodel->numshaders);
1198         pheader->numbones = BigLong(pinmodel->numbones);
1199         pheader->numscenes = BigLong(pinmodel->numscenes);
1200         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
1201         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
1202         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
1203         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
1204         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
1205         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
1206         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
1207         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
1208         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
1209         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
1210         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
1211         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
1212         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
1213         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
1214         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
1215         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
1216         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
1217         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
1218
1219         if (pheader->numtris < 1 || pheader->numverts < 3 || pheader->numshaders < 1)
1220         {
1221                 Con_Printf("%s has no geometry\n");
1222                 return;
1223         }
1224         if (pheader->numscenes < 1 || pheader->lump_poses.length < (int)sizeof(float[3][4]))
1225         {
1226                 Con_Printf("%s has no animations\n");
1227                 return;
1228         }
1229
1230         loadmodel->DrawSky = NULL;
1231         loadmodel->Draw = R_Q1BSP_Draw;
1232         loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
1233         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
1234         loadmodel->DrawLight = R_Q1BSP_DrawLight;
1235         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
1236
1237         loadmodel->numframes = pheader->numscenes;
1238         loadmodel->num_surfaces = pheader->numshaders;
1239
1240         skinfiles = Mod_LoadSkinFiles();
1241         if (loadmodel->numskins < 1)
1242                 loadmodel->numskins = 1;
1243
1244         // make skinscenes for the skins (no groups)
1245         loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
1246         for (i = 0;i < loadmodel->numskins;i++)
1247         {
1248                 loadmodel->skinscenes[i].firstframe = i;
1249                 loadmodel->skinscenes[i].framecount = 1;
1250                 loadmodel->skinscenes[i].loop = true;
1251                 loadmodel->skinscenes[i].framerate = 10;
1252         }
1253
1254         // model bbox
1255         modelradius = pheader->radius;
1256         for (i = 0;i < 3;i++)
1257         {
1258                 loadmodel->normalmins[i] = pheader->mins[i];
1259                 loadmodel->normalmaxs[i] = pheader->maxs[i];
1260                 loadmodel->rotatedmins[i] = -modelradius;
1261                 loadmodel->rotatedmaxs[i] = modelradius;
1262         }
1263         corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
1264         corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
1265         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
1266         if (loadmodel->yawmaxs[0] > modelradius)
1267                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
1268         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
1269         loadmodel->yawmins[2] = loadmodel->normalmins[2];
1270         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
1271         loadmodel->radius = modelradius;
1272         loadmodel->radius2 = modelradius * modelradius;
1273
1274         // go through the lumps, swapping things
1275
1276         //zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
1277         loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
1278         scene = (zymscene_t *) (pheader->lump_scenes.start + pbase);
1279         numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
1280         for (i = 0;i < pheader->numscenes;i++)
1281         {
1282                 memcpy(loadmodel->animscenes[i].name, scene->name, 32);
1283                 loadmodel->animscenes[i].firstframe = BigLong(scene->start);
1284                 loadmodel->animscenes[i].framecount = BigLong(scene->length);
1285                 loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
1286                 loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
1287                 if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
1288                         Host_Error("%s scene->firstframe (%i) >= numposes (%i)", loadmodel->name, loadmodel->animscenes[i].firstframe, numposes);
1289                 if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
1290                         Host_Error("%s scene->firstframe (%i) + framecount (%i) >= numposes (%i)", loadmodel->name, loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
1291                 if (loadmodel->animscenes[i].framerate < 0)
1292                         Host_Error("%s scene->framerate (%f) < 0", loadmodel->name, loadmodel->animscenes[i].framerate);
1293                 scene++;
1294         }
1295
1296         //zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
1297         loadmodel->num_poses = pheader->lump_poses.length / sizeof(float[3][4]);
1298         loadmodel->data_poses = (float *)Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
1299         poses = (float *) (pheader->lump_poses.start + pbase);
1300         for (i = 0;i < pheader->lump_poses.length / 4;i++)
1301                 loadmodel->data_poses[i] = BigFloat(poses[i]);
1302
1303         //zymlump_t lump_bones; // zymbone_t bone[numbones];
1304         loadmodel->num_bones = pheader->numbones;
1305         loadmodel->data_bones = (aliasbone_t *)Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(aliasbone_t));
1306         bone = (zymbone_t *) (pheader->lump_bones.start + pbase);
1307         for (i = 0;i < pheader->numbones;i++)
1308         {
1309                 memcpy(loadmodel->data_bones[i].name, bone[i].name, sizeof(bone[i].name));
1310                 loadmodel->data_bones[i].flags = BigLong(bone[i].flags);
1311                 loadmodel->data_bones[i].parent = BigLong(bone[i].parent);
1312                 if (loadmodel->data_bones[i].parent >= i)
1313                         Host_Error("%s bone[%i].parent >= %i", loadmodel->name, i, i);
1314         }
1315
1316         //zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
1317         vertbonecounts = (int *)Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1318         bonecount = (int *) (pheader->lump_vertbonecounts.start + pbase);
1319         for (i = 0;i < pheader->numverts;i++)
1320         {
1321                 vertbonecounts[i] = BigLong(bonecount[i]);
1322                 if (vertbonecounts[i] < 1)
1323                         Host_Error("%s bonecount[%i] < 1", loadmodel->name, i);
1324         }
1325
1326         //zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
1327         verts = (zymvertex_t *)Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
1328         vertdata = (zymvertex_t *) (pheader->lump_verts.start + pbase);
1329         for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
1330         {
1331                 verts[i].bonenum = BigLong(vertdata[i].bonenum);
1332                 verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
1333                 verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
1334                 verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
1335         }
1336
1337         //zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1338         outtexcoord2f = (float *)Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[2]));
1339         intexcoord2f = (float *) (pheader->lump_texcoords.start + pbase);
1340         for (i = 0;i < pheader->numverts;i++)
1341         {
1342                 outtexcoord2f[i*2+0] = BigFloat(intexcoord2f[i*2+0]);
1343                 // flip T coordinate for OpenGL
1344                 outtexcoord2f[i*2+1] = 1 - BigFloat(intexcoord2f[i*2+1]);
1345         }
1346
1347         //zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1348         //loadmodel->alias.zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1349         //memcpy(loadmodel->alias.zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1350
1351         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
1352         loadmodel->nummeshes = loadmodel->num_surfaces;
1353         loadmodel->num_textures = loadmodel->num_surfaces;
1354         data = (unsigned char *)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));
1355         loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
1356         loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
1357         loadmodel->meshlist = (surfmesh_t **)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
1358         loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
1359         for (i = 0;i < loadmodel->num_surfaces;i++)
1360         {
1361                 loadmodel->surfacelist[i] = i;
1362                 loadmodel->meshlist[i] = (surfmesh_t *)data;data += sizeof(surfmesh_t);
1363         }
1364
1365         //zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1366         //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)
1367         // byteswap, validate, and swap winding order of tris
1368         count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1369         if (pheader->lump_render.length != count)
1370                 Host_Error("%s renderlist is wrong size (%i bytes, should be %i bytes)", loadmodel->name, pheader->lump_render.length, count);
1371         renderlist = (int *) (pheader->lump_render.start + pbase);
1372         renderlistend = (int *) ((unsigned char *) renderlist + pheader->lump_render.length);
1373         for (i = 0;i < loadmodel->num_surfaces;i++)
1374         {
1375                 if (renderlist >= renderlistend)
1376                         Host_Error("%s corrupt renderlist (wrong size)", loadmodel->name);
1377                 count = BigLong(*renderlist);renderlist++;
1378                 if (renderlist + count * 3 > renderlistend || (i == pheader->numshaders - 1 && renderlist + count * 3 != renderlistend))
1379                         Host_Error("%s corrupt renderlist (wrong size)", loadmodel->name);
1380                 mesh = loadmodel->meshlist[i];
1381                 mesh->num_triangles = count;
1382                 mesh->data_element3i = (int *)Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1383                 mesh->data_neighbor3i = (int *)Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1384                 outelements = mesh->data_element3i;
1385                 for (j = 0;j < mesh->num_triangles;j++)
1386                 {
1387                         outelements[2] = BigLong(renderlist[0]);
1388                         outelements[1] = BigLong(renderlist[1]);
1389                         outelements[0] = BigLong(renderlist[2]);
1390                         if ((unsigned int)outelements[0] >= (unsigned int)pheader->numverts
1391                          || (unsigned int)outelements[1] >= (unsigned int)pheader->numverts
1392                          || (unsigned int)outelements[2] >= (unsigned int)pheader->numverts)
1393                                 Host_Error("%s corrupt renderlist (out of bounds index)", loadmodel->name);
1394                         if (vertbonecounts[outelements[0]] == 0 || vertbonecounts[outelements[1]] == 0 || vertbonecounts[outelements[2]] == 0)
1395                                 Host_Error("%s corrupt renderlist (references vertex with no bone weights", loadmodel->name);
1396                         renderlist += 3;
1397                         outelements += 3;
1398                 }
1399                 remapvertices = (int *)Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1400                 mesh->num_vertices = Mod_BuildVertexRemapTableFromElements(mesh->num_triangles * 3, mesh->data_element3i, pheader->numverts, remapvertices);
1401                 for (j = 0;j < mesh->num_triangles * 3;j++)
1402                         mesh->data_element3i[j] = remapvertices[mesh->data_element3i[j]];
1403                 mesh->data_texcoordtexture2f = (float *)Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
1404                 for (j = 0;j < pheader->numverts;j++)
1405                 {
1406                         if (remapvertices[j] >= 0)
1407                         {
1408                                 mesh->data_texcoordtexture2f[remapvertices[j]*2+0] = outtexcoord2f[j*2+0];
1409                                 mesh->data_texcoordtexture2f[remapvertices[j]*2+1] = outtexcoord2f[j*2+1];
1410                         }
1411                 }
1412                 mesh->num_vertexboneweights = 0;
1413                 for (j = 0;j < pheader->numverts;j++)
1414                         if (remapvertices[j] >= 0)
1415                                 mesh->num_vertexboneweights += vertbonecounts[remapvertices[j]];
1416                 mesh->data_vertexboneweights = (surfmeshvertexboneweight_t *)Mem_Alloc(loadmodel->mempool, mesh->num_vertexboneweights * sizeof(surfmeshvertexboneweight_t));
1417                 mesh->num_vertexboneweights = 0;
1418                 // note this vertexboneweight ordering requires that the remapvertices array is sequential numbers (separated by -1 values for omitted vertices)
1419                 l = 0;
1420                 for (j = 0;j < pheader->numverts;j++)
1421                 {
1422                         if (remapvertices[j] < 0)
1423                         {
1424                                 l += vertbonecounts[j];
1425                                 continue;
1426                         }
1427                         for (k = 0;k < vertbonecounts[j];k++)
1428                         {
1429                                 // this format really should have had a per vertexweight weight value...
1430                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].vertexindex = remapvertices[j];
1431                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].boneindex = verts[l].bonenum;
1432                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3] = 1.0f / vertbonecounts[j];
1433                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[0] = verts[l].origin[0] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1434                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[1] = verts[l].origin[1] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1435                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[2] = verts[l].origin[2] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1436                                 mesh->num_vertexboneweights++;
1437                                 l++;
1438                         }
1439                 }
1440                 shadername = (char *) (pheader->lump_shaders.start + pbase) + i * 32;
1441                 // since zym models do not have named sections, reuse their shader
1442                 // name as the section name
1443                 if (shadername[0])
1444                         Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, shadername, shadername);
1445                 else
1446                         for (j = 0;j < loadmodel->numskins;j++)
1447                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i + j * loadmodel->num_surfaces, NULL);
1448
1449                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
1450                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1451                 Mod_Alias_Mesh_CompileFrameZero(mesh);
1452
1453                 surface = loadmodel->data_surfaces + i;
1454                 surface->groupmesh = mesh;
1455                 surface->texture = loadmodel->data_textures + i;
1456                 surface->num_firsttriangle = 0;
1457                 surface->num_triangles = mesh->num_triangles;
1458                 surface->num_firstvertex = 0;
1459                 surface->num_vertices = mesh->num_vertices;
1460         }
1461
1462         Mem_Free(vertbonecounts);
1463         Mem_Free(verts);
1464         Mem_Free(outtexcoord2f);
1465         Mod_FreeSkinFiles(skinfiles);
1466 }
1467
1468 void Mod_DARKPLACESMODEL_Load(model_t *mod, void *buffer, void *bufferend)
1469 {
1470         dpmheader_t *pheader;
1471         dpmframe_t *frame;
1472         dpmbone_t *bone;
1473         dpmmesh_t *dpmmesh;
1474         unsigned char *pbase;
1475         int i, j, k;
1476         skinfile_t *skinfiles;
1477         unsigned char *data;
1478
1479         pheader = (dpmheader_t *)buffer;
1480         pbase = (unsigned char *)buffer;
1481         if (memcmp(pheader->id, "DARKPLACESMODEL\0", 16))
1482                 Host_Error ("Mod_DARKPLACESMODEL_Load: %s is not a darkplaces model");
1483         if (BigLong(pheader->type) != 2)
1484                 Host_Error ("Mod_DARKPLACESMODEL_Load: only type 2 (hierarchical skeletal pose) models are currently supported (name = %s)", loadmodel->name);
1485
1486         loadmodel->type = mod_alias;
1487         loadmodel->flags = 0; // there are no flags on zym models
1488         loadmodel->synctype = ST_RAND;
1489
1490         // byteswap header
1491         pheader->type = BigLong(pheader->type);
1492         pheader->filesize = BigLong(pheader->filesize);
1493         pheader->mins[0] = BigFloat(pheader->mins[0]);
1494         pheader->mins[1] = BigFloat(pheader->mins[1]);
1495         pheader->mins[2] = BigFloat(pheader->mins[2]);
1496         pheader->maxs[0] = BigFloat(pheader->maxs[0]);
1497         pheader->maxs[1] = BigFloat(pheader->maxs[1]);
1498         pheader->maxs[2] = BigFloat(pheader->maxs[2]);
1499         pheader->yawradius = BigFloat(pheader->yawradius);
1500         pheader->allradius = BigFloat(pheader->allradius);
1501         pheader->num_bones = BigLong(pheader->num_bones);
1502         pheader->num_meshs = BigLong(pheader->num_meshs);
1503         pheader->num_frames = BigLong(pheader->num_frames);
1504         pheader->ofs_bones = BigLong(pheader->ofs_bones);
1505         pheader->ofs_meshs = BigLong(pheader->ofs_meshs);
1506         pheader->ofs_frames = BigLong(pheader->ofs_frames);
1507
1508         if (pheader->num_bones < 1 || pheader->num_meshs < 1)
1509         {
1510                 Con_Printf("%s has no geometry\n");
1511                 return;
1512         }
1513         if (pheader->num_frames < 1)
1514         {
1515                 Con_Printf("%s has no frames\n");
1516                 return;
1517         }
1518
1519         loadmodel->DrawSky = NULL;
1520         loadmodel->Draw = R_Q1BSP_Draw;
1521         loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
1522         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
1523         loadmodel->DrawLight = R_Q1BSP_DrawLight;
1524         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
1525
1526         // model bbox
1527         for (i = 0;i < 3;i++)
1528         {
1529                 loadmodel->normalmins[i] = pheader->mins[i];
1530                 loadmodel->normalmaxs[i] = pheader->maxs[i];
1531                 loadmodel->yawmins[i] = i != 2 ? -pheader->yawradius : pheader->mins[i];
1532                 loadmodel->yawmaxs[i] = i != 2 ? pheader->yawradius : pheader->maxs[i];
1533                 loadmodel->rotatedmins[i] = -pheader->allradius;
1534                 loadmodel->rotatedmaxs[i] = pheader->allradius;
1535         }
1536         loadmodel->radius = pheader->allradius;
1537         loadmodel->radius2 = pheader->allradius * pheader->allradius;
1538
1539         // load external .skin files if present
1540         skinfiles = Mod_LoadSkinFiles();
1541         if (loadmodel->numskins < 1)
1542                 loadmodel->numskins = 1;
1543
1544         loadmodel->numframes = pheader->num_frames;
1545         loadmodel->num_bones = pheader->num_bones;
1546         loadmodel->num_poses = loadmodel->num_bones * loadmodel->numframes;
1547         loadmodel->num_textures = loadmodel->nummeshes = loadmodel->nummodelsurfaces = loadmodel->num_surfaces = pheader->num_meshs;
1548
1549         // do most allocations as one merged chunk
1550         data = (unsigned char *)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) + loadmodel->numskins * sizeof(animscene_t) + loadmodel->num_bones * sizeof(aliasbone_t) + loadmodel->num_poses * sizeof(float[12]) + loadmodel->numframes * sizeof(animscene_t));
1551         loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
1552         loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
1553         loadmodel->meshlist = (surfmesh_t **)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
1554         loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
1555         loadmodel->skinscenes = (animscene_t *)data;data += loadmodel->numskins * sizeof(animscene_t);
1556         loadmodel->data_bones = (aliasbone_t *)data;data += loadmodel->num_bones * sizeof(aliasbone_t);
1557         loadmodel->data_poses = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
1558         loadmodel->animscenes = (animscene_t *)data;data += loadmodel->numframes * sizeof(animscene_t);
1559         for (i = 0;i < loadmodel->numskins;i++)
1560         {
1561                 loadmodel->skinscenes[i].firstframe = i;
1562                 loadmodel->skinscenes[i].framecount = 1;
1563                 loadmodel->skinscenes[i].loop = true;
1564                 loadmodel->skinscenes[i].framerate = 10;
1565         }
1566         for (i = 0;i < loadmodel->num_surfaces;i++)
1567         {
1568                 loadmodel->surfacelist[i] = i;
1569                 loadmodel->meshlist[i] = (surfmesh_t *)data;data += sizeof(surfmesh_t);
1570         }
1571
1572         // load the bone info
1573         bone = (dpmbone_t *) (pbase + pheader->ofs_bones);
1574         for (i = 0;i < loadmodel->num_bones;i++)
1575         {
1576                 memcpy(loadmodel->data_bones[i].name, bone[i].name, sizeof(bone[i].name));
1577                 loadmodel->data_bones[i].flags = BigLong(bone[i].flags);
1578                 loadmodel->data_bones[i].parent = BigLong(bone[i].parent);
1579                 if (loadmodel->data_bones[i].parent >= i)
1580                         Host_Error("%s bone[%i].parent >= %i", loadmodel->name, i, i);
1581         }
1582
1583         // load the frames
1584         frame = (dpmframe_t *) (pbase + pheader->ofs_frames);
1585         for (i = 0;i < loadmodel->numframes;i++)
1586         {
1587                 const float *poses;
1588                 memcpy(loadmodel->animscenes[i].name, frame->name, sizeof(frame->name));
1589                 loadmodel->animscenes[i].firstframe = i;
1590                 loadmodel->animscenes[i].framecount = 1;
1591                 loadmodel->animscenes[i].loop = true;
1592                 loadmodel->animscenes[i].framerate = 10;
1593                 // load the bone poses for this frame
1594                 poses = (float *) (pbase + BigLong(frame->ofs_bonepositions));
1595                 for (j = 0;j < loadmodel->num_bones*12;j++)
1596                         loadmodel->data_poses[i * loadmodel->num_bones*12 + j] = BigFloat(poses[j]);
1597                 // stuff not processed here: mins, maxs, yawradius, allradius
1598                 frame++;
1599         }
1600
1601         // load the meshes now
1602         dpmmesh = (dpmmesh_t *) (pbase + pheader->ofs_meshs);
1603         for (i = 0;i < loadmodel->num_surfaces;i++)
1604         {
1605                 const int *inelements;
1606                 int *outelements;
1607                 const float *intexcoord;
1608                 surfmesh_t *mesh;
1609                 msurface_t *surface;
1610
1611                 mesh = loadmodel->meshlist[i];
1612                 mesh->num_triangles = BigLong(dpmmesh->num_tris);
1613                 mesh->num_vertices = BigLong(dpmmesh->num_verts);
1614
1615                 // to find out how many weights exist we two a two-stage load...
1616                 mesh->num_vertexboneweights = 0;
1617                 data = (unsigned char *) (pbase + BigLong(dpmmesh->ofs_verts));
1618                 for (j = 0;j < mesh->num_vertices;j++)
1619                 {
1620                         int numweights = BigLong(((dpmvertex_t *)data)->numbones);
1621                         mesh->num_vertexboneweights += numweights;
1622                         data += sizeof(dpmvertex_t);
1623                         data += numweights * sizeof(dpmbonevert_t);
1624                 }
1625
1626                 // allocate things now that we know how many
1627                 mesh->data_vertexboneweights = (surfmeshvertexboneweight_t *)Mem_Alloc(loadmodel->mempool, mesh->num_vertexboneweights * sizeof(surfmeshvertexboneweight_t));
1628                 mesh->data_element3i = (int *)Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1629                 mesh->data_neighbor3i = (int *)Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1630                 mesh->data_texcoordtexture2f = (float *)Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
1631
1632                 inelements = (int *) (pbase + BigLong(dpmmesh->ofs_indices));
1633                 outelements = mesh->data_element3i;
1634                 for (j = 0;j < mesh->num_triangles;j++)
1635                 {
1636                         // swap element order to flip triangles, because Quake uses clockwise (rare) and dpm uses counterclockwise (standard)
1637                         outelements[0] = BigLong(inelements[2]);
1638                         outelements[1] = BigLong(inelements[1]);
1639                         outelements[2] = BigLong(inelements[0]);
1640                         inelements += 3;
1641                         outelements += 3;
1642                 }
1643
1644                 intexcoord = (float *) (pbase + BigLong(dpmmesh->ofs_texcoords));
1645                 for (j = 0;j < mesh->num_vertices*2;j++)
1646                         mesh->data_texcoordtexture2f[j] = BigFloat(intexcoord[j]);
1647
1648                 // now load them for real
1649                 mesh->num_vertexboneweights = 0;
1650                 data = (unsigned char *) (pbase + BigLong(dpmmesh->ofs_verts));
1651                 for (j = 0;j < mesh->num_vertices;j++)
1652                 {
1653                         int numweights = BigLong(((dpmvertex_t *)data)->numbones);
1654                         data += sizeof(dpmvertex_t);
1655                         for (k = 0;k < numweights;k++)
1656                         {
1657                                 const dpmbonevert_t *vert = (dpmbonevert_t *) data;
1658                                 // stuff not processed here: normal
1659                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].vertexindex = j;
1660                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].boneindex = BigLong(vert->bonenum);
1661                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[0] = BigFloat(vert->origin[0]);
1662                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[1] = BigFloat(vert->origin[1]);
1663                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[2] = BigFloat(vert->origin[2]);
1664                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3] = BigFloat(vert->influence);
1665                                 mesh->num_vertexboneweights++;
1666                                 data += sizeof(dpmbonevert_t);
1667                         }
1668                 }
1669
1670                 // since dpm models do not have named sections, reuse their shader name as the section name
1671                 if (dpmmesh->shadername[0])
1672                         Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, dpmmesh->shadername, dpmmesh->shadername);
1673                 else
1674                         for (j = 0;j < loadmodel->numskins;j++)
1675                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i + j * loadmodel->num_surfaces, NULL);
1676
1677                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
1678                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1679                 Mod_Alias_Mesh_CompileFrameZero(mesh);
1680
1681                 surface = loadmodel->data_surfaces + i;
1682                 surface->groupmesh = mesh;
1683                 surface->texture = loadmodel->data_textures + i;
1684                 surface->num_firsttriangle = 0;
1685                 surface->num_triangles = mesh->num_triangles;
1686                 surface->num_firstvertex = 0;
1687                 surface->num_vertices = mesh->num_vertices;
1688
1689                 dpmmesh++;
1690         }
1691         Mod_FreeSkinFiles(skinfiles);
1692 }
1693
1694 static void Mod_PSKMODEL_AnimKeyToMatrix(float *origin, float *quat, matrix4x4_t *m)
1695 {
1696         float x = quat[0], y = quat[1], z = quat[2], w = quat[3];
1697         m->m[0][0]=1-2*(y*y+z*z);m->m[0][1]=  2*(x*y-z*w);m->m[0][2]=  2*(x*z+y*w);m->m[0][3]=origin[0];
1698         m->m[1][0]=  2*(x*y+z*w);m->m[1][1]=1-2*(x*x+z*z);m->m[1][2]=  2*(y*z-x*w);m->m[1][3]=origin[1];
1699         m->m[2][0]=  2*(x*z-y*w);m->m[2][1]=  2*(y*z+x*w);m->m[2][2]=1-2*(x*x+y*y);m->m[2][3]=origin[2];
1700         m->m[3][0]=  0          ;m->m[3][1]=  0          ;m->m[3][2]=  0          ;m->m[3][3]=1;
1701 }
1702
1703 // no idea why PSK/PSA files contain weird quaternions but they do...
1704 #define PSKQUATNEGATIONS
1705 void Mod_PSKMODEL_Load(model_t *mod, void *buffer, void *bufferend)
1706 {
1707         int i, j, index, version, recordsize, numrecords;
1708         int numpnts, numvtxw, numfaces, nummatts, numbones, numrawweights, numanimbones, numanims, numanimkeys;
1709         fs_offset_t filesize;
1710         pskpnts_t *pnts;
1711         pskvtxw_t *vtxw;
1712         pskface_t *faces;
1713         pskmatt_t *matts;
1714         pskboneinfo_t *bones;
1715         pskrawweights_t *rawweights;
1716         pskboneinfo_t *animbones;
1717         pskaniminfo_t *anims;
1718         pskanimkeys_t *animkeys;
1719         void *animfilebuffer, *animbuffer, *animbufferend;
1720         pskchunk_t *pchunk;
1721         surfmesh_t *mesh;
1722         skinfile_t *skinfiles;
1723         char animname[MAX_QPATH];
1724
1725         pchunk = (pskchunk_t *)buffer;
1726         if (strcmp(pchunk->id, "ACTRHEAD"))
1727                 Host_Error ("Mod_PSKMODEL_Load: %s is not an Unreal Engine ActorX (.psk + .psa) model");
1728
1729         loadmodel->type = mod_alias;
1730         loadmodel->DrawSky = NULL;
1731         loadmodel->Draw = R_Q1BSP_Draw;
1732         loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
1733         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
1734         loadmodel->DrawLight = R_Q1BSP_DrawLight;
1735         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
1736         loadmodel->flags = 0; // there are no flags on zym models
1737         loadmodel->synctype = ST_RAND;
1738
1739         // load external .skin files if present
1740         skinfiles = Mod_LoadSkinFiles();
1741         if (loadmodel->numskins < 1)
1742                 loadmodel->numskins = 1;
1743         loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
1744         for (i = 0;i < loadmodel->numskins;i++)
1745         {
1746                 loadmodel->skinscenes[i].firstframe = i;
1747                 loadmodel->skinscenes[i].framecount = 1;
1748                 loadmodel->skinscenes[i].loop = true;
1749                 loadmodel->skinscenes[i].framerate = 10;
1750         }
1751
1752         FS_StripExtension(loadmodel->name, animname, sizeof(animname));
1753         strlcat(animname, ".psa", sizeof(animname));
1754         animbuffer = animfilebuffer = FS_LoadFile(animname, loadmodel->mempool, false, &filesize);
1755         animbufferend = (void *)((unsigned char*)animbuffer + (int)filesize);
1756         if (animbuffer == NULL)
1757                 Host_Error("%s: can't find .psa file (%s)", loadmodel->name, animname);
1758
1759         numpnts = 0;
1760         pnts = NULL;
1761         numvtxw = 0;
1762         vtxw = NULL;
1763         numfaces = 0;
1764         faces = NULL;
1765         nummatts = 0;
1766         matts = NULL;
1767         numbones = 0;
1768         bones = NULL;
1769         numrawweights = 0;
1770         rawweights = NULL;
1771         numanims = 0;
1772         anims = NULL;
1773         numanimkeys = 0;
1774         animkeys = NULL;
1775
1776         while (buffer < bufferend)
1777         {
1778                 pchunk = (pskchunk_t *)buffer;
1779                 buffer = (void *)((unsigned char *)buffer + sizeof(pskchunk_t));
1780                 version = LittleLong(pchunk->version);
1781                 recordsize = LittleLong(pchunk->recordsize);
1782                 numrecords = LittleLong(pchunk->numrecords);
1783                 if (developer.integer)
1784                         Con_Printf("%s: %s %x: %i * %i = %i\n", loadmodel->name, pchunk->id, version, recordsize, numrecords, recordsize * numrecords);
1785                 if (version != 0x1e83b9 && version != 0x1e9179 && version != 0x2e)
1786                         Con_Printf ("%s: chunk %s has unknown version %x (0x1e83b9, 0x1e9179 and 0x2e are currently supported), trying to load anyway!\n", loadmodel->name, pchunk->id, version);
1787                 if (!strcmp(pchunk->id, "ACTRHEAD"))
1788                 {
1789                         // nothing to do
1790                 }
1791                 else if (!strcmp(pchunk->id, "PNTS0000"))
1792                 {
1793                         pskpnts_t *p;
1794                         if (recordsize != sizeof(*p))
1795                                 Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
1796                         // byteswap in place and keep the pointer
1797                         numpnts = numrecords;
1798                         pnts = (pskpnts_t *)buffer;
1799                         for (index = 0, p = (pskpnts_t *)buffer;index < numrecords;index++, p++)
1800                         {
1801                                 p->origin[0] = LittleFloat(p->origin[0]);
1802                                 p->origin[1] = LittleFloat(p->origin[1]);
1803                                 p->origin[2] = LittleFloat(p->origin[2]);
1804                         }
1805                         buffer = p;
1806                 }
1807                 else if (!strcmp(pchunk->id, "VTXW0000"))
1808                 {
1809                         pskvtxw_t *p;
1810                         if (recordsize != sizeof(*p))
1811                                 Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
1812                         // byteswap in place and keep the pointer
1813                         numvtxw = numrecords;
1814                         vtxw = (pskvtxw_t *)buffer;
1815                         for (index = 0, p = (pskvtxw_t *)buffer;index < numrecords;index++, p++)
1816                         {
1817                                 p->pntsindex = LittleShort(p->pntsindex);
1818                                 p->texcoord[0] = LittleFloat(p->texcoord[0]);
1819                                 p->texcoord[1] = LittleFloat(p->texcoord[1]);
1820                                 if (p->pntsindex >= numpnts)
1821                                 {
1822                                         Con_Printf("%s: vtxw->pntsindex %i >= numpnts %i\n", loadmodel->name, p->pntsindex, numpnts);
1823                                         p->pntsindex = 0;
1824                                 }
1825                         }
1826                         buffer = p;
1827                 }
1828                 else if (!strcmp(pchunk->id, "FACE0000"))
1829                 {
1830                         pskface_t *p;
1831                         if (recordsize != sizeof(*p))
1832                                 Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
1833                         // byteswap in place and keep the pointer
1834                         numfaces = numrecords;
1835                         faces = (pskface_t *)buffer;
1836                         for (index = 0, p = (pskface_t *)buffer;index < numrecords;index++, p++)
1837                         {
1838                                 p->vtxwindex[0] = LittleShort(p->vtxwindex[0]);
1839                                 p->vtxwindex[1] = LittleShort(p->vtxwindex[1]);
1840                                 p->vtxwindex[2] = LittleShort(p->vtxwindex[2]);
1841                                 p->group = LittleLong(p->group);
1842                                 if (p->vtxwindex[0] >= numvtxw)
1843                                 {
1844                                         Con_Printf("%s: face->vtxwindex[0] %i >= numvtxw %i\n", loadmodel->name, p->vtxwindex[0], numvtxw);
1845                                         p->vtxwindex[0] = 0;
1846                                 }
1847                                 if (p->vtxwindex[1] >= numvtxw)
1848                                 {
1849                                         Con_Printf("%s: face->vtxwindex[1] %i >= numvtxw %i\n", loadmodel->name, p->vtxwindex[1], numvtxw);
1850                                         p->vtxwindex[1] = 0;
1851                                 }
1852                                 if (p->vtxwindex[2] >= numvtxw)
1853                                 {
1854                                         Con_Printf("%s: face->vtxwindex[2] %i >= numvtxw %i\n", loadmodel->name, p->vtxwindex[2], numvtxw);
1855                                         p->vtxwindex[2] = 0;
1856                                 }
1857                         }
1858                         buffer = p;
1859                 }
1860                 else if (!strcmp(pchunk->id, "MATT0000"))
1861                 {
1862                         pskmatt_t *p;
1863                         if (recordsize != sizeof(*p))
1864                                 Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
1865                         // byteswap in place and keep the pointer
1866                         nummatts = numrecords;
1867                         matts = (pskmatt_t *)buffer;
1868                         for (index = 0, p = (pskmatt_t *)buffer;index < numrecords;index++, p++)
1869                         {
1870                         }
1871                         buffer = p;
1872                 }
1873                 else if (!strcmp(pchunk->id, "REFSKELT"))
1874                 {
1875                         pskboneinfo_t *p;
1876                         if (recordsize != sizeof(*p))
1877                                 Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
1878                         // byteswap in place and keep the pointer
1879                         numbones = numrecords;
1880                         bones = (pskboneinfo_t *)buffer;
1881                         for (index = 0, p = (pskboneinfo_t *)buffer;index < numrecords;index++, p++)
1882                         {
1883                                 p->numchildren = LittleLong(p->numchildren);
1884                                 p->parent = LittleLong(p->parent);
1885                                 p->basepose.quat[0] = LittleFloat(p->basepose.quat[0]);
1886                                 p->basepose.quat[1] = LittleFloat(p->basepose.quat[1]);
1887                                 p->basepose.quat[2] = LittleFloat(p->basepose.quat[2]);
1888                                 p->basepose.quat[3] = LittleFloat(p->basepose.quat[3]);
1889                                 p->basepose.origin[0] = LittleFloat(p->basepose.origin[0]);
1890                                 p->basepose.origin[1] = LittleFloat(p->basepose.origin[1]);
1891                                 p->basepose.origin[2] = LittleFloat(p->basepose.origin[2]);
1892                                 p->basepose.unknown = LittleFloat(p->basepose.unknown);
1893                                 p->basepose.size[0] = LittleFloat(p->basepose.size[0]);
1894                                 p->basepose.size[1] = LittleFloat(p->basepose.size[1]);
1895                                 p->basepose.size[2] = LittleFloat(p->basepose.size[2]);
1896 #ifdef PSKQUATNEGATIONS
1897                                 if (index)
1898                                 {
1899                                         p->basepose.quat[0] *= -1;
1900                                         p->basepose.quat[1] *= -1;
1901                                         p->basepose.quat[2] *= -1;
1902                                 }
1903                                 else
1904                                 {
1905                                         p->basepose.quat[0] *=  1;
1906                                         p->basepose.quat[1] *= -1;
1907                                         p->basepose.quat[2] *=  1;
1908                                 }
1909 #endif
1910                                 if (p->parent < 0 || p->parent >= numbones)
1911                                 {
1912                                         Con_Printf("%s: bone->parent %i >= numbones %i\n", loadmodel->name, p->parent, numbones);
1913                                         p->parent = 0;
1914                                 }
1915                         }
1916                         buffer = p;
1917                 }
1918                 else if (!strcmp(pchunk->id, "RAWWEIGHTS"))
1919                 {
1920                         pskrawweights_t *p;
1921                         if (recordsize != sizeof(*p))
1922                                 Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
1923                         // byteswap in place and keep the pointer
1924                         numrawweights = numrecords;
1925                         rawweights = (pskrawweights_t *)buffer;
1926                         for (index = 0, p = (pskrawweights_t *)buffer;index < numrecords;index++, p++)
1927                         {
1928                                 p->weight = LittleFloat(p->weight);
1929                                 p->pntsindex = LittleLong(p->pntsindex);
1930                                 p->boneindex = LittleLong(p->boneindex);
1931                                 if (p->pntsindex < 0 || p->pntsindex >= numpnts)
1932                                 {
1933                                         Con_Printf("%s: weight->pntsindex %i >= numpnts %i\n", loadmodel->name, p->pntsindex, numpnts);
1934                                         p->pntsindex = 0;
1935                                 }
1936                                 if (p->boneindex < 0 || p->boneindex >= numbones)
1937                                 {
1938                                         Con_Printf("%s: weight->boneindex %i >= numbones %i\n", loadmodel->name, p->boneindex, numbones);
1939                                         p->boneindex = 0;
1940                                 }
1941                         }
1942                         buffer = p;
1943                 }
1944         }
1945
1946         while (animbuffer < animbufferend)
1947         {
1948                 pchunk = (pskchunk_t *)animbuffer;
1949                 animbuffer = (void *)((unsigned char *)animbuffer + sizeof(pskchunk_t));
1950                 version = LittleLong(pchunk->version);
1951                 recordsize = LittleLong(pchunk->recordsize);
1952                 numrecords = LittleLong(pchunk->numrecords);
1953                 if (developer.integer)
1954                         Con_Printf("%s: %s %x: %i * %i = %i\n", animname, pchunk->id, version, recordsize, numrecords, recordsize * numrecords);
1955                 if (version != 0x1e83b9 && version != 0x1e9179 && version != 0x2e)
1956                         Con_Printf ("%s: chunk %s has unknown version %x (0x1e83b9, 0x1e9179 and 0x2e are currently supported), trying to load anyway!\n", animname, pchunk->id, version);
1957                 if (!strcmp(pchunk->id, "ANIMHEAD"))
1958                 {
1959                         // nothing to do
1960                 }
1961                 else if (!strcmp(pchunk->id, "BONENAMES"))
1962                 {
1963                         pskboneinfo_t *p;
1964                         if (recordsize != sizeof(*p))
1965                                 Host_Error("%s: %s has unsupported recordsize", animname, pchunk->id);
1966                         // byteswap in place and keep the pointer
1967                         numanimbones = numrecords;
1968                         animbones = (pskboneinfo_t *)animbuffer;
1969                         // NOTE: supposedly psa does not need to match the psk model, the
1970                         // bones missing from the psa would simply use their base
1971                         // positions from the psk, but this is hard for me to implement
1972                         // and people can easily make animations that match.
1973                         if (numanimbones != numbones)
1974                                 Host_Error("%s: this loader only supports animations with the same bones as the mesh");
1975                         for (index = 0, p = (pskboneinfo_t *)animbuffer;index < numrecords;index++, p++)
1976                         {
1977                                 p->numchildren = LittleLong(p->numchildren);
1978                                 p->parent = LittleLong(p->parent);
1979                                 p->basepose.quat[0] = LittleFloat(p->basepose.quat[0]);
1980                                 p->basepose.quat[1] = LittleFloat(p->basepose.quat[1]);
1981                                 p->basepose.quat[2] = LittleFloat(p->basepose.quat[2]);
1982                                 p->basepose.quat[3] = LittleFloat(p->basepose.quat[3]);
1983                                 p->basepose.origin[0] = LittleFloat(p->basepose.origin[0]);
1984                                 p->basepose.origin[1] = LittleFloat(p->basepose.origin[1]);
1985                                 p->basepose.origin[2] = LittleFloat(p->basepose.origin[2]);
1986                                 p->basepose.unknown = LittleFloat(p->basepose.unknown);
1987                                 p->basepose.size[0] = LittleFloat(p->basepose.size[0]);
1988                                 p->basepose.size[1] = LittleFloat(p->basepose.size[1]);
1989                                 p->basepose.size[2] = LittleFloat(p->basepose.size[2]);
1990 #ifdef PSKQUATNEGATIONS
1991                                 if (index)
1992                                 {
1993                                         p->basepose.quat[0] *= -1;
1994                                         p->basepose.quat[1] *= -1;
1995                                         p->basepose.quat[2] *= -1;
1996                                 }
1997                                 else
1998                                 {
1999                                         p->basepose.quat[0] *=  1;
2000                                         p->basepose.quat[1] *= -1;
2001                                         p->basepose.quat[2] *=  1;
2002                                 }
2003 #endif
2004                                 if (p->parent < 0 || p->parent >= numanimbones)
2005                                 {
2006                                         Con_Printf("%s: bone->parent %i >= numanimbones %i\n", animname, p->parent, numanimbones);
2007                                         p->parent = 0;
2008                                 }
2009                                 // check that bones are the same as in the base
2010                                 if (strcmp(p->name, bones[index].name) || p->parent != bones[index].parent)
2011                                         Host_Error("%s: this loader only supports animations with the same bones as the mesh", animname);
2012                         }
2013                         animbuffer = p;
2014                 }
2015                 else if (!strcmp(pchunk->id, "ANIMINFO"))
2016                 {
2017                         pskaniminfo_t *p;
2018                         if (recordsize != sizeof(*p))
2019                                 Host_Error("%s: %s has unsupported recordsize", animname, pchunk->id);
2020                         // byteswap in place and keep the pointer
2021                         numanims = numrecords;
2022                         anims = (pskaniminfo_t *)animbuffer;
2023                         for (index = 0, p = (pskaniminfo_t *)animbuffer;index < numrecords;index++, p++)
2024                         {
2025                                 p->numbones = LittleLong(p->numbones);
2026                                 p->playtime = LittleFloat(p->playtime);
2027                                 p->fps = LittleFloat(p->fps);
2028                                 p->firstframe = LittleLong(p->firstframe);
2029                                 p->numframes = LittleLong(p->numframes);
2030                                 if (p->numbones != numbones)
2031                                 {
2032                                         Con_Printf("%s: animinfo->numbones != numbones, trying to load anyway!\n", animname);
2033                                 }
2034                         }
2035                         animbuffer = p;
2036                 }
2037                 else if (!strcmp(pchunk->id, "ANIMKEYS"))
2038                 {
2039                         pskanimkeys_t *p;
2040                         if (recordsize != sizeof(*p))
2041                                 Host_Error("%s: %s has unsupported recordsize", animname, pchunk->id);
2042                         numanimkeys = numrecords;
2043                         animkeys = (pskanimkeys_t *)animbuffer;
2044                         for (index = 0, p = (pskanimkeys_t *)animbuffer;index < numrecords;index++, p++)
2045                         {
2046                                 p->origin[0] = LittleFloat(p->origin[0]);
2047                                 p->origin[1] = LittleFloat(p->origin[1]);
2048                                 p->origin[2] = LittleFloat(p->origin[2]);
2049                                 p->quat[0] = LittleFloat(p->quat[0]);
2050                                 p->quat[1] = LittleFloat(p->quat[1]);
2051                                 p->quat[2] = LittleFloat(p->quat[2]);
2052                                 p->quat[3] = LittleFloat(p->quat[3]);
2053                                 p->frametime = LittleFloat(p->frametime);
2054 #ifdef PSKQUATNEGATIONS
2055                                 if (index % numbones)
2056                                 {
2057                                         p->quat[0] *= -1;
2058                                         p->quat[1] *= -1;
2059                                         p->quat[2] *= -1;
2060                                 }
2061                                 else
2062                                 {
2063                                         p->quat[0] *=  1;
2064                                         p->quat[1] *= -1;
2065                                         p->quat[2] *=  1;
2066                                 }
2067 #endif
2068                         }
2069                         animbuffer = p;
2070                         // TODO: allocate bonepose stuff
2071                 }
2072                 else
2073                         Con_Printf("%s: unknown chunk ID \"%s\"\n", animname, pchunk->id);
2074         }
2075
2076         if (!numpnts || !pnts || !numvtxw || !vtxw || !numfaces || !faces || !nummatts || !matts || !numbones || !bones || !numrawweights || !rawweights || !numanims || !anims || !numanimkeys || !animkeys)
2077                 Host_Error("%s: missing required chunks", loadmodel->name);
2078
2079         // FIXME: model bbox
2080         // model bbox
2081         for (i = 0;i < 3;i++)
2082         {
2083                 loadmodel->normalmins[i] = -128;
2084                 loadmodel->normalmaxs[i] = 128;
2085                 loadmodel->yawmins[i] = -128;
2086                 loadmodel->yawmaxs[i] = 128;
2087                 loadmodel->rotatedmins[i] = -128;
2088                 loadmodel->rotatedmaxs[i] = 128;
2089         }
2090         loadmodel->radius = 128;
2091         loadmodel->radius2 = loadmodel->radius * loadmodel->radius;
2092
2093         loadmodel->numframes = 0;
2094         for (index = 0;index < numanims;index++)
2095                 loadmodel->numframes += anims[index].numframes;
2096
2097         loadmodel->num_bones = numbones;
2098         loadmodel->num_poses = loadmodel->num_bones * loadmodel->numframes;
2099         loadmodel->num_textures = loadmodel->nummeshes = loadmodel->nummodelsurfaces = loadmodel->num_surfaces = nummatts;
2100
2101         if (numanimkeys != loadmodel->num_bones * loadmodel->numframes)
2102                 Host_Error("%s: %s has incorrect number of animation keys", animname, pchunk->id);
2103
2104         loadmodel->data_poses = (float *)Mem_Alloc(loadmodel->mempool, loadmodel->num_poses * sizeof(float[12]));
2105         loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
2106         loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
2107         loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t));
2108         loadmodel->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(int));
2109         loadmodel->data_bones = (aliasbone_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_bones * sizeof(aliasbone_t));
2110
2111         loadmodel->meshlist = (surfmesh_t **)Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t *));
2112         mesh = loadmodel->meshlist[0] = (surfmesh_t *)Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t));
2113         mesh->num_vertices = numvtxw;
2114         mesh->num_triangles = numfaces;
2115         mesh->data_element3i = (int *)Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
2116         mesh->data_neighbor3i = (int *)Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
2117         mesh->data_texcoordtexture2f = (float *)Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
2118
2119         // create surfaces
2120         for (index = 0, i = 0;index < nummatts;index++)
2121         {
2122                 // since psk models do not have named sections, reuse their shader name as the section name
2123                 if (matts[index].name[0])
2124                         Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + index, skinfiles, matts[index].name, matts[index].name);
2125                 else
2126                         for (j = 0;j < loadmodel->numskins;j++)
2127                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + index + j * loadmodel->num_surfaces, NULL);
2128                 loadmodel->surfacelist[index] = index;
2129                 loadmodel->data_surfaces[index].groupmesh = loadmodel->meshlist[0];
2130                 loadmodel->data_surfaces[index].texture = loadmodel->data_textures + index;
2131                 loadmodel->data_surfaces[index].num_firstvertex = 0;
2132                 loadmodel->data_surfaces[index].num_vertices = loadmodel->meshlist[0]->num_vertices;
2133         }
2134
2135         // copy over the texcoords
2136         for (index = 0;index < numvtxw;index++)
2137         {
2138                 mesh->data_texcoordtexture2f[index*2+0] = vtxw[index].texcoord[0];
2139                 mesh->data_texcoordtexture2f[index*2+1] = vtxw[index].texcoord[1];
2140         }
2141
2142         // loading the faces is complicated because we need to sort them into surfaces by mattindex
2143         for (index = 0;index < numfaces;index++)
2144                 loadmodel->data_surfaces[faces[index].mattindex].num_triangles++;
2145         for (index = 0, i = 0;index < nummatts;index++)
2146         {
2147                 loadmodel->data_surfaces[index].num_firsttriangle = i;
2148                 i += loadmodel->data_surfaces[index].num_triangles;
2149                 loadmodel->data_surfaces[index].num_triangles = 0;
2150         }
2151         for (index = 0;index < numfaces;index++)
2152         {
2153                 i = (loadmodel->data_surfaces[faces[index].mattindex].num_firsttriangle + loadmodel->data_surfaces[faces[index].mattindex].num_triangles++)*3;
2154                 mesh->data_element3i[i+0] = faces[index].vtxwindex[0];
2155                 mesh->data_element3i[i+1] = faces[index].vtxwindex[1];
2156                 mesh->data_element3i[i+2] = faces[index].vtxwindex[2];
2157         }
2158
2159         // copy over the bones
2160         for (index = 0;index < numbones;index++)
2161         {
2162                 strlcpy(loadmodel->data_bones[index].name, bones[index].name, sizeof(loadmodel->data_bones[index].name));
2163                 loadmodel->data_bones[index].parent = (index || bones[index].parent > 0) ? bones[index].parent : -1;
2164                 if (loadmodel->data_bones[index].parent >= index)
2165                         Host_Error("%s bone[%i].parent >= %i", loadmodel->name, index, index);
2166         }
2167
2168         // build bone-relative vertex weights from the psk point weights
2169         mesh->num_vertexboneweights = 0;
2170         for (index = 0;index < numvtxw;index++)
2171                 for (j = 0;j < numrawweights;j++)
2172                         if (rawweights[j].pntsindex == vtxw[index].pntsindex)
2173                                 mesh->num_vertexboneweights++;
2174         mesh->data_vertexboneweights = (surfmeshvertexboneweight_t *)Mem_Alloc(loadmodel->mempool, mesh->num_vertexboneweights * sizeof(surfmeshvertexboneweight_t));
2175         mesh->num_vertexboneweights = 0;
2176         for (index = 0;index < numvtxw;index++)
2177         {
2178                 for (j = 0;j < numrawweights;j++)
2179                 {
2180                         if (rawweights[j].pntsindex == vtxw[index].pntsindex)
2181                         {
2182                                 matrix4x4_t matrix, inversematrix;
2183                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].vertexindex = index;
2184                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].boneindex = rawweights[j].boneindex;
2185                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].weight = rawweights[j].weight;
2186                                 matrix = identitymatrix;
2187                                 for (i = rawweights[j].boneindex;i >= 0;i = loadmodel->data_bones[i].parent)
2188                                 {
2189                                         matrix4x4_t childmatrix, tempmatrix;
2190                                         Mod_PSKMODEL_AnimKeyToMatrix(bones[i].basepose.origin, bones[i].basepose.quat, &tempmatrix);
2191                                         childmatrix = matrix;
2192                                         Matrix4x4_Concat(&matrix, &tempmatrix, &childmatrix);
2193                                 }
2194                                 Matrix4x4_Invert_Simple(&inversematrix, &matrix);
2195                                 Matrix4x4_Transform(&inversematrix, pnts[rawweights[j].pntsindex].origin, mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin);
2196                                 VectorScale(mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin, mesh->data_vertexboneweights[mesh->num_vertexboneweights].weight, mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin);
2197                                 mesh->num_vertexboneweights++;
2198                         }
2199                 }
2200         }
2201
2202         // set up the animscenes based on the anims
2203         for (index = 0, i = 0;index < numanims;index++)
2204         {
2205                 for (j = 0;j < anims[index].numframes;j++, i++)
2206                 {
2207                         dpsnprintf(loadmodel->animscenes[i].name, sizeof(loadmodel->animscenes[i].name), "%s_%d", anims[index].name, j);
2208                         loadmodel->animscenes[i].firstframe = i;
2209                         loadmodel->animscenes[i].framecount = 1;
2210                         loadmodel->animscenes[i].loop = true;
2211                         loadmodel->animscenes[i].framerate = 10;
2212                 }
2213         }
2214
2215         // load the poses from the animkeys
2216         for (index = 0;index < numanimkeys;index++)
2217         {
2218                 matrix4x4_t matrix;
2219                 Mod_PSKMODEL_AnimKeyToMatrix(animkeys[index].origin, animkeys[index].quat, &matrix);
2220                 loadmodel->data_poses[index*12+0] = matrix.m[0][0];
2221                 loadmodel->data_poses[index*12+1] = matrix.m[0][1];
2222                 loadmodel->data_poses[index*12+2] = matrix.m[0][2];
2223                 loadmodel->data_poses[index*12+3] = matrix.m[0][3];
2224                 loadmodel->data_poses[index*12+4] = matrix.m[1][0];
2225                 loadmodel->data_poses[index*12+5] = matrix.m[1][1];
2226                 loadmodel->data_poses[index*12+6] = matrix.m[1][2];
2227                 loadmodel->data_poses[index*12+7] = matrix.m[1][3];
2228                 loadmodel->data_poses[index*12+8] = matrix.m[2][0];
2229                 loadmodel->data_poses[index*12+9] = matrix.m[2][1];
2230                 loadmodel->data_poses[index*12+10] = matrix.m[2][2];
2231                 loadmodel->data_poses[index*12+11] = matrix.m[2][3];
2232         }
2233
2234         // compile extra data we want
2235         Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
2236         Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
2237         Mod_Alias_Mesh_CompileFrameZero(mesh);
2238
2239         Mem_Free(animfilebuffer);
2240         Mod_FreeSkinFiles(skinfiles);
2241 }
2242