model_alias.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20
  21 #include "quakedef.h"
  22 #include "image.h"
  23 #include "r_shadow.h"
  24
  25 void Mod_AliasInit (void)
  26 {
  27 }
  28
  29 void Mod_Alias_GetMesh_Vertex3f(const model_t *model, const frameblend_t *frameblend, const surfmesh_t *mesh, float *out3f)
  30 {
  31         if (mesh->num_vertexboneweights)
  32         {
  33                 int i, k, blends;
  34                 surfmeshvertexboneweight_t *v;
  35                 float *out, *matrix, m[12], bonepose[256][12];
  36                 // vertex weighted skeletal
  37                 // interpolate matrices and concatenate them to their parents
  38                 for (i = 0;i < model->num_bones;i++)
  39                 {
  40                         for (k = 0;k < 12;k++)
  41                                 m[k] = 0;
  42                         for (blends = 0;blends < 4 && frameblend[blends].lerp > 0;blends++)
  43                         {
  44                                 matrix = model->data_poses + (frameblend[blends].frame * model->num_bones + i) * 12;
  45                                 for (k = 0;k < 12;k++)
  46                                         m[k] += matrix[k] * frameblend[blends].lerp;
  47                         }
  48                         if (model->data_bones[i].parent >= 0)
  49                                 R_ConcatTransforms(bonepose[model->data_bones[i].parent], m, bonepose[i]);
  50                         else
  51                                 for (k = 0;k < 12;k++)
  52                                         bonepose[i][k] = m[k];
  53                 }
  54                 // blend the vertex bone weights
  55                 memset(out3f, 0, mesh->num_vertices * sizeof(float[3]));
  56                 v = mesh->data_vertexboneweights;
  57                 for (i = 0;i < mesh->num_vertexboneweights;i++, v++)
  58                 {
  59                         out = out3f + v->vertexindex * 3;
  60                         matrix = bonepose[v->boneindex];
  61                         // FIXME: this can very easily be optimized with SSE or 3DNow
  62                         out[0] += v->origin[0] * matrix[0] + v->origin[1] * matrix[1] + v->origin[2] * matrix[ 2] + v->origin[3] * matrix[ 3];
  63                         out[1] += v->origin[0] * matrix[4] + v->origin[1] * matrix[5] + v->origin[2] * matrix[ 6] + v->origin[3] * matrix[ 7];
  64                         out[2] += v->origin[0] * matrix[8] + v->origin[1] * matrix[9] + v->origin[2] * matrix[10] + v->origin[3] * matrix[11];
  65                 }
  66         }
  67         else
  68         {
  69                 int i, vertcount;
  70                 float lerp1, lerp2, lerp3, lerp4;
  71                 const float *vertsbase, *verts1, *verts2, *verts3, *verts4;
  72                 // vertex morph
  73                 vertsbase = mesh->data_morphvertex3f;
  74                 vertcount = mesh->num_vertices;
  75                 verts1 = vertsbase + frameblend[0].frame * vertcount * 3;
  76                 lerp1 = frameblend[0].lerp;
  77                 if (frameblend[1].lerp)
  78                 {
  79                         verts2 = vertsbase + frameblend[1].frame * vertcount * 3;
  80                         lerp2 = frameblend[1].lerp;
  81                         if (frameblend[2].lerp)
  82                         {
  83                                 verts3 = vertsbase + frameblend[2].frame * vertcount * 3;
  84                                 lerp3 = frameblend[2].lerp;
  85                                 if (frameblend[3].lerp)
  86                                 {
  87                                         verts4 = vertsbase + frameblend[3].frame * vertcount * 3;
  88                                         lerp4 = frameblend[3].lerp;
  89                                         for (i = 0;i < vertcount * 3;i++)
  90                                                 VectorMAMAMAM(lerp1, verts1 + i, lerp2, verts2 + i, lerp3, verts3 + i, lerp4, verts4 + i, out3f + i);
  91                                 }
  92                                 else
  93                                         for (i = 0;i < vertcount * 3;i++)
  94                                                 VectorMAMAM(lerp1, verts1 + i, lerp2, verts2 + i, lerp3, verts3 + i, out3f + i);
  95                         }
  96                         else
  97                                 for (i = 0;i < vertcount * 3;i++)
  98                                         VectorMAM(lerp1, verts1 + i, lerp2, verts2 + i, out3f + i);
  99                 }
 100                 else
 101                         memcpy(out3f, verts1, vertcount * sizeof(float[3]));
 102         }
 103 }
 104
 105 int Mod_Alias_GetTagMatrix(const model_t *model, int poseframe, int tagindex, matrix4x4_t *outmatrix)
 106 {
 107         const float *boneframe;
 108         float tempbonematrix[12], bonematrix[12];
 109         Matrix4x4_CreateIdentity(outmatrix);
 110         if (model->num_bones)
 111         {
 112                 if (tagindex < 0 || tagindex >= model->num_bones)
 113                         return 4;
 114                 if (poseframe >= model->num_poses)
 115                         return 6;
 116                 boneframe = model->data_poses + poseframe * model->num_bones * 12;
 117                 memcpy(bonematrix, boneframe + tagindex * 12, sizeof(float[12]));
 118                 while (model->data_bones[tagindex].parent >= 0)
 119                 {
 120                         memcpy(tempbonematrix, bonematrix, sizeof(float[12]));
 121                         R_ConcatTransforms(boneframe + model->data_bones[tagindex].parent * 12, tempbonematrix, bonematrix);
 122                         tagindex = model->data_bones[tagindex].parent;
 123                 }
 124                 outmatrix->m[0][0] = bonematrix[0];
 125                 outmatrix->m[0][1] = bonematrix[1];
 126                 outmatrix->m[0][2] = bonematrix[2];
 127                 outmatrix->m[0][3] = bonematrix[3];
 128                 outmatrix->m[1][0] = bonematrix[4];
 129                 outmatrix->m[1][1] = bonematrix[5];
 130                 outmatrix->m[1][2] = bonematrix[6];
 131                 outmatrix->m[1][3] = bonematrix[7];
 132                 outmatrix->m[2][0] = bonematrix[8];
 133                 outmatrix->m[2][1] = bonematrix[9];
 134                 outmatrix->m[2][2] = bonematrix[10];
 135                 outmatrix->m[2][3] = bonematrix[11];
 136                 outmatrix->m[3][0] = 0;
 137                 outmatrix->m[3][1] = 0;
 138                 outmatrix->m[3][2] = 0;
 139                 outmatrix->m[3][3] = 1;
 140         }
 141         else if (model->num_tags)
 142         {
 143                 if (tagindex < 0 || tagindex >= model->num_tags)
 144                         return 4;
 145                 if (poseframe >= model->num_tagframes)
 146                         return 6;
 147                 *outmatrix = model->data_tags[poseframe * model->num_tags + tagindex].matrix;
 148         }
 149         return 0;
 150 }
 151
 152 int Mod_Alias_GetTagIndexForName(const model_t *model, unsigned int skin, const char *tagname)
 153 {
 154         int i;
 155         if (model->data_overridetagnamesforskin && skin < (unsigned int)model->numskins && model->data_overridetagnamesforskin[(unsigned int)skin].num_overridetagnames)
 156                 for (i = 0;i < model->data_overridetagnamesforskin[skin].num_overridetagnames;i++)
 157                         if (!strcasecmp(tagname, model->data_overridetagnamesforskin[skin].data_overridetagnames[i].name))
 158                                 return i + 1;
 159         if (model->num_bones)
 160                 for (i = 0;i < model->num_bones;i++)
 161                         if (!strcasecmp(tagname, model->data_bones[i].name))
 162                                 return i + 1;
 163         if (model->num_tags)
 164                 for (i = 0;i < model->num_tags;i++)
 165                         if (!strcasecmp(tagname, model->data_tags[i].name))
 166                                 return i + 1;
 167         return 0;
 168 }
 169
 170 static void Mod_Alias_Mesh_CompileFrameZero(surfmesh_t *mesh)
 171 {
 172         frameblend_t frameblend[4] = {{0, 1}, {0, 0}, {0, 0}, {0, 0}};
 173         mesh->data_vertex3f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[3][4]));
 174         mesh->data_svector3f = mesh->data_vertex3f + mesh->num_vertices * 3;
 175         mesh->data_tvector3f = mesh->data_vertex3f + mesh->num_vertices * 6;
 176         mesh->data_normal3f = mesh->data_vertex3f + mesh->num_vertices * 9;
 177         Mod_Alias_GetMesh_Vertex3f(loadmodel, frameblend, mesh, mesh->data_vertex3f);
 178         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);
 179 }
 180
 181 static void Mod_MDLMD2MD3_TraceBox(model_t *model, int frame, trace_t *trace, const vec3_t boxstartmins, const vec3_t boxstartmaxs, const vec3_t boxendmins, const vec3_t boxendmaxs, int hitsupercontentsmask)
 182 {
 183         int i, framenum, linetrace;
 184         float *vertex3f;
 185         float segmentmins[3], segmentmaxs[3];
 186         msurface_t *surface;
 187         surfmesh_t *mesh;
 188         colbrushf_t *thisbrush_start, *thisbrush_end;
 189         matrix4x4_t startmatrix, endmatrix;
 190         memset(trace, 0, sizeof(*trace));
 191         trace->fraction = 1;
 192         trace->realfraction = 1;
 193         trace->hitsupercontentsmask = hitsupercontentsmask;
 194         segmentmins[0] = min(boxstartmins[0], boxendmins[0]);
 195         segmentmins[1] = min(boxstartmins[1], boxendmins[1]);
 196         segmentmins[2] = min(boxstartmins[2], boxendmins[2]);
 197         segmentmaxs[0] = max(boxstartmaxs[0], boxendmaxs[0]);
 198         segmentmaxs[1] = max(boxstartmaxs[1], boxendmaxs[1]);
 199         segmentmaxs[2] = max(boxstartmaxs[2], boxendmaxs[2]);
 200         linetrace = VectorCompare(boxstartmins, boxstartmaxs) && VectorCompare(boxendmins, boxendmaxs);
 201         if (!linetrace)
 202         {
 203                 // box trace, performed as brush trace
 204                 Matrix4x4_CreateIdentity(&startmatrix);
 205                 Matrix4x4_CreateIdentity(&endmatrix);
 206                 thisbrush_start = Collision_BrushForBox(&startmatrix, boxstartmins, boxstartmaxs);
 207                 thisbrush_end = Collision_BrushForBox(&endmatrix, boxendmins, boxendmaxs);
 208         }
 209         for (i = 0, surface = model->data_surfaces;i < model->num_surfaces;i++, surface++)
 210         {
 211                 mesh = surface->groupmesh;
 212                 framenum = frame;
 213                 if (framenum < 0 || framenum > mesh->num_morphframes)
 214                         framenum = 0;
 215                 if (mesh->data_morphvertex3f)
 216                         vertex3f = mesh->data_morphvertex3f + framenum * mesh->num_vertices * 3;
 217                 else
 218                 {
 219                         vertex3f = varray_vertex3f;
 220                         continue; // FIXME!!!  this needs to handle skeletal!
 221                 }
 222                 if (linetrace)
 223                         Collision_TraceLineTriangleMeshFloat(trace, boxstartmins, boxendmins, mesh->num_triangles, mesh->data_element3i, vertex3f, SUPERCONTENTS_SOLID, segmentmins, segmentmaxs);
 224                 else
 225                         Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, mesh->num_triangles, mesh->data_element3i, vertex3f, SUPERCONTENTS_SOLID, segmentmins, segmentmaxs);
 226         }
 227 }
 228
 229 static void Mod_CalcAliasModelBBoxes (void)
 230 {
 231         int vnum, meshnum;
 232         float dist, yawradius, radius;
 233         surfmesh_t *mesh;
 234         float *v;
 235         VectorClear(loadmodel->normalmins);
 236         VectorClear(loadmodel->normalmaxs);
 237         yawradius = 0;
 238         radius = 0;
 239         for (meshnum = 0;meshnum < loadmodel->num_surfaces;meshnum++)
 240         {
 241                 mesh = loadmodel->meshlist[meshnum];
 242                 for (vnum = 0, v = mesh->data_morphvertex3f;vnum < mesh->num_vertices * mesh->num_morphframes;vnum++, v += 3)
 243                 {
 244                         if (loadmodel->normalmins[0] > v[0]) loadmodel->normalmins[0] = v[0];
 245                         if (loadmodel->normalmins[1] > v[1]) loadmodel->normalmins[1] = v[1];
 246                         if (loadmodel->normalmins[2] > v[2]) loadmodel->normalmins[2] = v[2];
 247                         if (loadmodel->normalmaxs[0] < v[0]) loadmodel->normalmaxs[0] = v[0];
 248                         if (loadmodel->normalmaxs[1] < v[1]) loadmodel->normalmaxs[1] = v[1];
 249                         if (loadmodel->normalmaxs[2] < v[2]) loadmodel->normalmaxs[2] = v[2];
 250                         dist = v[0] * v[0] + v[1] * v[1];
 251                         if (yawradius < dist)
 252                                 yawradius = dist;
 253                         dist += v[2] * v[2];
 254                         if (radius < dist)
 255                                 radius = dist;
 256                 }
 257         }
 258         radius = sqrt(radius);
 259         yawradius = sqrt(yawradius);
 260         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -yawradius;
 261         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = yawradius;
 262         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 263         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 264         loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -radius;
 265         loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = radius;
 266         loadmodel->radius = radius;
 267         loadmodel->radius2 = radius * radius;
 268 }
 269
 270 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int *vertremap)
 271 {
 272         int i, j;
 273         vec3_t temp;
 274         for (i = 0;i < inverts;i++)
 275         {
 276                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
 277                         continue;
 278                 temp[0] = v[i].v[0] * scale[0] + translate[0];
 279                 temp[1] = v[i].v[1] * scale[1] + translate[1];
 280                 temp[2] = v[i].v[2] * scale[2] + translate[2];
 281                 j = vertremap[i]; // not onseam
 282                 if (j >= 0)
 283                         VectorCopy(temp, out3f + j * 3);
 284                 j = vertremap[i+inverts]; // onseam
 285                 if (j >= 0)
 286                         VectorCopy(temp, out3f + j * 3);
 287         }
 288 }
 289
 290 static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, vec3_t scale, vec3_t translate, int *vertremap)
 291 {
 292         int i, f, pose, groupframes;
 293         float interval;
 294         daliasframetype_t *pframetype;
 295         daliasframe_t *pinframe;
 296         daliasgroup_t *group;
 297         daliasinterval_t *intervals;
 298         animscene_t *scene;
 299         pose = 0;
 300         scene = loadmodel->animscenes;
 301         for (f = 0;f < loadmodel->numframes;f++)
 302         {
 303                 pframetype = (daliasframetype_t *)datapointer;
 304                 datapointer += sizeof(daliasframetype_t);
 305                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 306                 {
 307                         // a single frame is still treated as a group
 308                         interval = 0.1f;
 309                         groupframes = 1;
 310                 }
 311                 else
 312                 {
 313                         // read group header
 314                         group = (daliasgroup_t *)datapointer;
 315                         datapointer += sizeof(daliasgroup_t);
 316                         groupframes = LittleLong (group->numframes);
 317
 318                         // intervals (time per frame)
 319                         intervals = (daliasinterval_t *)datapointer;
 320                         datapointer += sizeof(daliasinterval_t) * groupframes;
 321
 322                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 323                         if (interval < 0.01f)
 324                         {
 325                                 Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
 326                                 interval = 0.1f;
 327                         }
 328                 }
 329
 330                 // get scene name from first frame
 331                 pinframe = (daliasframe_t *)datapointer;
 332
 333                 strcpy(scene->name, pinframe->name);
 334                 scene->firstframe = pose;
 335                 scene->framecount = groupframes;
 336                 scene->framerate = 1.0f / interval;
 337                 scene->loop = true;
 338                 scene++;
 339
 340                 // read frames
 341                 for (i = 0;i < groupframes;i++)
 342                 {
 343                         pinframe = (daliasframe_t *)datapointer;
 344                         datapointer += sizeof(daliasframe_t);
 345                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->meshlist[0]->data_morphvertex3f + pose * loadmodel->meshlist[0]->num_vertices * 3, vertremap);
 346                         datapointer += sizeof(trivertx_t) * inverts;
 347                         pose++;
 348                 }
 349         }
 350 }
 351
 352 static skinframe_t missingskinframe;
 353 static void Mod_BuildAliasSkinFromSkinFrame(texture_t *skin, skinframe_t *skinframe)
 354 {
 355         // hack
 356         if (skinframe == NULL)
 357         {
 358                 skinframe = &missingskinframe;
 359                 memset(skinframe, 0, sizeof(*skinframe));
 360                 skinframe->base = r_texture_notexture;
 361         }
 362
 363         skin->skin = *skinframe;
 364 }
 365
 366 static void Mod_BuildAliasSkinsFromSkinFiles(texture_t *skin, skinfile_t *skinfile, char *meshname, char *shadername)
 367 {
 368         int i;
 369         skinfileitem_t *skinfileitem;
 370         skinframe_t tempskinframe;
 371         if (skinfile)
 372         {
 373                 for (i = 0;skinfile;skinfile = skinfile->next, i++, skin++)
 374                 {
 375                         memset(skin, 0, sizeof(*skin));
 376                         for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = skinfileitem->next)
 377                         {
 378                                 // leave the skin unitialized (nodraw) if the replacement is "common/nodraw" or "textures/common/nodraw"
 379                                 if (!strcmp(skinfileitem->name, meshname) && strcmp(skinfileitem->replacement, "common/nodraw") && strcmp(skinfileitem->replacement, "textures/common/nodraw"))
 380                                 {
 381                                         memset(&tempskinframe, 0, sizeof(tempskinframe));
 382                                         if (Mod_LoadSkinFrame(&tempskinframe, skinfileitem->replacement, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, true, false, true))
 383                                                 Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 384                                         else
 385                                         {
 386                                                 if (cls.state != ca_dedicated)
 387                                                         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);
 388                                                 if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, true, false, true))
 389                                                         Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 390                                                 else
 391                                                 {
 392                                                         if (cls.state != ca_dedicated)
 393                                                                 Con_Printf("failed to load skin \"%s\"\n", shadername);
 394                                                         Mod_BuildAliasSkinFromSkinFrame(skin, NULL);
 395                                                 }
 396                                         }
 397                                 }
 398                         }
 399                 }
 400         }
 401         else
 402         {
 403                 memset(&tempskinframe, 0, sizeof(tempskinframe));
 404                 if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, true, false, true))
 405                         Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 406                 else
 407                 {
 408                         if (cls.state != ca_dedicated)
 409                                 Con_Printf("failed to load mesh \"%s\" shader \"%s\"\n", meshname, shadername);
 410                         Mod_BuildAliasSkinFromSkinFrame(skin, NULL);
 411                 }
 412         }
 413 }
 414
 415 #define BOUNDI(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%d exceeds %d - %d)\n", loadmodel->name, VALUE, MIN, MAX);
 416 #define BOUNDF(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%f exceeds %f - %f)\n", loadmodel->name, VALUE, MIN, MAX);
 417 extern void R_Model_Alias_Draw(entity_render_t *ent);
 418 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist, const vec3_t lightmins, const vec3_t lightmaxs);
 419 extern void R_Model_Alias_DrawLight(entity_render_t *ent, float *lightcolor, int numsurfaces, const int *surfacelist);
 420 void Mod_IDP0_Load(model_t *mod, void *buffer)
 421 {
 422         int i, j, version, totalskins, skinwidth, skinheight, groupframes, groupskins, numverts;
 423         float scales, scalet, scale[3], translate[3], interval;
 424         msurface_t *surface;
 425         qbyte *data;
 426         mdl_t *pinmodel;
 427         stvert_t *pinstverts;
 428         dtriangle_t *pintriangles;
 429         daliasskintype_t *pinskintype;
 430         daliasskingroup_t *pinskingroup;
 431         daliasskininterval_t *pinskinintervals;
 432         daliasframetype_t *pinframetype;
 433         daliasgroup_t *pinframegroup;
 434         qbyte *datapointer, *startframes, *startskins;
 435         char name[MAX_QPATH];
 436         skinframe_t tempskinframe;
 437         animscene_t *tempskinscenes;
 438         texture_t *tempaliasskins;
 439         float *vertst;
 440         int *vertonseam, *vertremap;
 441         skinfile_t *skinfiles;
 442
 443         datapointer = buffer;
 444         pinmodel = (mdl_t *)datapointer;
 445         datapointer += sizeof(mdl_t);
 446
 447         version = LittleLong (pinmodel->version);
 448         if (version != ALIAS_VERSION)
 449                 Host_Error ("%s has wrong version number (%i should be %i)",
 450                                  loadmodel->name, version, ALIAS_VERSION);
 451
 452         loadmodel->type = mod_alias;
 453         loadmodel->DrawSky = NULL;
 454         loadmodel->Draw = R_Model_Alias_Draw;
 455         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 456         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 457         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 458
 459         loadmodel->num_surfaces = 1;
 460         loadmodel->nummeshes = loadmodel->num_surfaces;
 461         data = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->nummeshes * sizeof(surfmesh_t *) + loadmodel->nummeshes * sizeof(surfmesh_t));
 462         loadmodel->data_surfaces = (void *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
 463         loadmodel->meshlist = (void *)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
 464         for (i = 0;i < loadmodel->num_surfaces;i++)
 465                 loadmodel->meshlist[i] = (void *)data;data += sizeof(surfmesh_t);
 466
 467         loadmodel->numskins = LittleLong(pinmodel->numskins);
 468         BOUNDI(loadmodel->numskins,0,65536);
 469         skinwidth = LittleLong (pinmodel->skinwidth);
 470         BOUNDI(skinwidth,0,65536);
 471         skinheight = LittleLong (pinmodel->skinheight);
 472         BOUNDI(skinheight,0,65536);
 473         numverts = LittleLong(pinmodel->numverts);
 474         BOUNDI(numverts,0,65536);
 475         loadmodel->meshlist[0]->num_triangles = LittleLong(pinmodel->numtris);
 476         BOUNDI(loadmodel->meshlist[0]->num_triangles,0,65536);
 477         loadmodel->numframes = LittleLong(pinmodel->numframes);
 478         BOUNDI(loadmodel->numframes,0,65536);
 479         loadmodel->synctype = LittleLong (pinmodel->synctype);
 480         BOUNDI(loadmodel->synctype,0,2);
 481         loadmodel->flags = LittleLong (pinmodel->flags);
 482
 483         for (i = 0;i < 3;i++)
 484         {
 485                 scale[i] = LittleFloat (pinmodel->scale[i]);
 486                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 487         }
 488
 489         startskins = datapointer;
 490         totalskins = 0;
 491         for (i = 0;i < loadmodel->numskins;i++)
 492         {
 493                 pinskintype = (daliasskintype_t *)datapointer;
 494                 datapointer += sizeof(daliasskintype_t);
 495                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 496                         groupskins = 1;
 497                 else
 498                 {
 499                         pinskingroup = (daliasskingroup_t *)datapointer;
 500                         datapointer += sizeof(daliasskingroup_t);
 501                         groupskins = LittleLong(pinskingroup->numskins);
 502                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 503                 }
 504
 505                 for (j = 0;j < groupskins;j++)
 506                 {
 507                         datapointer += skinwidth * skinheight;
 508                         totalskins++;
 509                 }
 510         }
 511
 512         pinstverts = (stvert_t *)datapointer;
 513         datapointer += sizeof(stvert_t) * numverts;
 514
 515         pintriangles = (dtriangle_t *)datapointer;
 516         datapointer += sizeof(dtriangle_t) * loadmodel->meshlist[0]->num_triangles;
 517
 518         startframes = datapointer;
 519         loadmodel->meshlist[0]->num_morphframes = 0;
 520         for (i = 0;i < loadmodel->numframes;i++)
 521         {
 522                 pinframetype = (daliasframetype_t *)datapointer;
 523                 datapointer += sizeof(daliasframetype_t);
 524                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 525                         groupframes = 1;
 526                 else
 527                 {
 528                         pinframegroup = (daliasgroup_t *)datapointer;
 529                         datapointer += sizeof(daliasgroup_t);
 530                         groupframes = LittleLong(pinframegroup->numframes);
 531                         datapointer += sizeof(daliasinterval_t) * groupframes;
 532                 }
 533
 534                 for (j = 0;j < groupframes;j++)
 535                 {
 536                         datapointer += sizeof(daliasframe_t);
 537                         datapointer += sizeof(trivertx_t) * numverts;
 538                         loadmodel->meshlist[0]->num_morphframes++;
 539                 }
 540         }
 541
 542         // store texture coordinates into temporary array, they will be stored
 543         // after usage is determined (triangle data)
 544         vertst = Mem_Alloc(tempmempool, numverts * 2 * sizeof(float[2]));
 545         vertremap = Mem_Alloc(tempmempool, numverts * 3 * sizeof(int));
 546         vertonseam = vertremap + numverts * 2;
 547
 548         scales = 1.0 / skinwidth;
 549         scalet = 1.0 / skinheight;
 550         for (i = 0;i < numverts;i++)
 551         {
 552                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 553                 vertst[i*2+0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 554                 vertst[i*2+1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 555                 vertst[(i+numverts)*2+0] = vertst[i*2+0] + 0.5;
 556                 vertst[(i+numverts)*2+1] = vertst[i*2+1];
 557         }
 558
 559 // load triangle data
 560         loadmodel->meshlist[0]->data_element3i = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->meshlist[0]->num_triangles);
 561
 562         // read the triangle elements
 563         for (i = 0;i < loadmodel->meshlist[0]->num_triangles;i++)
 564                 for (j = 0;j < 3;j++)
 565                         loadmodel->meshlist[0]->data_element3i[i*3+j] = LittleLong(pintriangles[i].vertindex[j]);
 566         // validate (note numverts is used because this is the original data)
 567         Mod_ValidateElements(loadmodel->meshlist[0]->data_element3i, loadmodel->meshlist[0]->num_triangles, numverts, __FILE__, __LINE__);
 568         // now butcher the elements according to vertonseam and tri->facesfront
 569         // and then compact the vertex set to remove duplicates
 570         for (i = 0;i < loadmodel->meshlist[0]->num_triangles;i++)
 571                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 572                         for (j = 0;j < 3;j++)
 573                                 if (vertonseam[loadmodel->meshlist[0]->data_element3i[i*3+j]])
 574                                         loadmodel->meshlist[0]->data_element3i[i*3+j] += numverts;
 575         // count the usage
 576         // (this uses vertremap to count usage to save some memory)
 577         for (i = 0;i < numverts*2;i++)
 578                 vertremap[i] = 0;
 579         for (i = 0;i < loadmodel->meshlist[0]->num_triangles*3;i++)
 580                 vertremap[loadmodel->meshlist[0]->data_element3i[i]]++;
 581         // build remapping table and compact array
 582         loadmodel->meshlist[0]->num_vertices = 0;
 583         for (i = 0;i < numverts*2;i++)
 584         {
 585                 if (vertremap[i])
 586                 {
 587                         vertremap[i] = loadmodel->meshlist[0]->num_vertices;
 588                         vertst[loadmodel->meshlist[0]->num_vertices*2+0] = vertst[i*2+0];
 589                         vertst[loadmodel->meshlist[0]->num_vertices*2+1] = vertst[i*2+1];
 590                         loadmodel->meshlist[0]->num_vertices++;
 591                 }
 592                 else
 593                         vertremap[i] = -1; // not used at all
 594         }
 595         // remap the elements to the new vertex set
 596         for (i = 0;i < loadmodel->meshlist[0]->num_triangles * 3;i++)
 597                 loadmodel->meshlist[0]->data_element3i[i] = vertremap[loadmodel->meshlist[0]->data_element3i[i]];
 598         // store the texture coordinates
 599         loadmodel->meshlist[0]->data_texcoordtexture2f = Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * loadmodel->meshlist[0]->num_vertices);
 600         for (i = 0;i < loadmodel->meshlist[0]->num_vertices;i++)
 601         {
 602                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+0] = vertst[i*2+0];
 603                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+1] = vertst[i*2+1];
 604         }
 605
 606 // load the frames
 607         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 608         loadmodel->meshlist[0]->data_morphvertex3f = Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * loadmodel->meshlist[0]->num_morphframes * loadmodel->meshlist[0]->num_vertices);
 609         loadmodel->meshlist[0]->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_triangles * sizeof(int[3]));
 610         Mod_MDL_LoadFrames (startframes, numverts, scale, translate, vertremap);
 611         Mod_BuildTriangleNeighbors(loadmodel->meshlist[0]->data_neighbor3i, loadmodel->meshlist[0]->data_element3i, loadmodel->meshlist[0]->num_triangles);
 612         Mod_CalcAliasModelBBoxes();
 613         Mod_Alias_Mesh_CompileFrameZero(loadmodel->meshlist[0]);
 614
 615         Mem_Free(vertst);
 616         Mem_Free(vertremap);
 617
 618         // load the skins
 619         if ((skinfiles = Mod_LoadSkinFiles()))
 620         {
 621                 loadmodel->meshlist[0]->num_skins = totalskins = loadmodel->numskins;
 622                 loadmodel->meshlist[0]->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_skins * sizeof(texture_t));
 623                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->meshlist[0]->data_skins, skinfiles, "default", "");
 624                 Mod_FreeSkinFiles(skinfiles);
 625                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 626                 for (i = 0;i < loadmodel->numskins;i++)
 627                 {
 628                         loadmodel->skinscenes[i].firstframe = i;
 629                         loadmodel->skinscenes[i].framecount = 1;
 630                         loadmodel->skinscenes[i].loop = true;
 631                         loadmodel->skinscenes[i].framerate = 10;
 632                 }
 633         }
 634         else
 635         {
 636                 loadmodel->meshlist[0]->num_skins = totalskins;
 637                 loadmodel->meshlist[0]->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_skins * sizeof(texture_t));
 638                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 639                 totalskins = 0;
 640                 datapointer = startskins;
 641                 for (i = 0;i < loadmodel->numskins;i++)
 642                 {
 643                         pinskintype = (daliasskintype_t *)datapointer;
 644                         datapointer += sizeof(daliasskintype_t);
 645
 646                         if (pinskintype->type == ALIAS_SKIN_SINGLE)
 647                         {
 648                                 groupskins = 1;
 649                                 interval = 0.1f;
 650                         }
 651                         else
 652                         {
 653                                 pinskingroup = (daliasskingroup_t *)datapointer;
 654                                 datapointer += sizeof(daliasskingroup_t);
 655
 656                                 groupskins = LittleLong (pinskingroup->numskins);
 657
 658                                 pinskinintervals = (daliasskininterval_t *)datapointer;
 659                                 datapointer += sizeof(daliasskininterval_t) * groupskins;
 660
 661                                 interval = LittleFloat(pinskinintervals[0].interval);
 662                                 if (interval < 0.01f)
 663                                 {
 664                                         Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
 665                                         interval = 0.1f;
 666                                 }
 667                         }
 668
 669                         sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 670                         loadmodel->skinscenes[i].firstframe = totalskins;
 671                         loadmodel->skinscenes[i].framecount = groupskins;
 672                         loadmodel->skinscenes[i].framerate = 1.0f / interval;
 673                         loadmodel->skinscenes[i].loop = true;
 674
 675                         for (j = 0;j < groupskins;j++)
 676                         {
 677                                 if (groupskins > 1)
 678                                         sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 679                                 else
 680                                         sprintf (name, "%s_%i", loadmodel->name, i);
 681                                 if (!Mod_LoadSkinFrame(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA | TEXF_PICMIP, true, false, true))
 682                                         Mod_LoadSkinFrame_Internal(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA | TEXF_PICMIP, true, false, r_fullbrights.integer, (qbyte *)datapointer, skinwidth, skinheight);
 683                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->meshlist[0]->data_skins + totalskins, &tempskinframe);
 684                                 datapointer += skinwidth * skinheight;
 685                                 totalskins++;
 686                         }
 687                 }
 688                 // check for skins that don't exist in the model, but do exist as external images
 689                 // (this was added because yummyluv kept pestering me about support for it)
 690                 while (Mod_LoadSkinFrame(&tempskinframe, va("%s_%i", loadmodel->name, loadmodel->numskins), (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA | TEXF_PICMIP, true, false, true))
 691                 {
 692                         // expand the arrays to make room
 693                         tempskinscenes = loadmodel->skinscenes;
 694                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 695                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 696                         Mem_Free(tempskinscenes);
 697
 698                         tempaliasskins = loadmodel->meshlist[0]->data_skins;
 699                         loadmodel->meshlist[0]->data_skins = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(texture_t));
 700                         memcpy(loadmodel->meshlist[0]->data_skins, tempaliasskins, totalskins * sizeof(texture_t));
 701                         Mem_Free(tempaliasskins);
 702
 703                         // store the info about the new skin
 704                         Mod_BuildAliasSkinFromSkinFrame(loadmodel->meshlist[0]->data_skins + totalskins, &tempskinframe);
 705                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 706                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 707                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 708                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 709                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 710
 711                         //increase skin counts
 712                         loadmodel->meshlist[0]->num_skins++;
 713                         loadmodel->numskins++;
 714                         totalskins++;
 715                 }
 716         }
 717
 718         surface = loadmodel->data_surfaces;
 719         surface->groupmesh = loadmodel->meshlist[0];
 720         // FIXME: need to store data_skins in msurface_t, not surfmesh_t
 721         surface->texture = surface->groupmesh->data_skins;
 722         surface->num_firsttriangle = 0;
 723         surface->num_triangles = surface->groupmesh->num_triangles;
 724         surface->num_firstvertex = 0;
 725         surface->num_vertices = surface->groupmesh->num_vertices;
 726 }
 727
 728 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int numverts, int *vertremap)
 729 {
 730         int i;
 731         trivertx_t *in;
 732         for (i = 0;i < numverts;i++, out3f += 3)
 733         {
 734                 in = v + vertremap[i];
 735                 out3f[0] = in->v[0] * scale[0] + translate[0];
 736                 out3f[1] = in->v[1] * scale[1] + translate[1];
 737                 out3f[2] = in->v[2] * scale[2] + translate[2];
 738         }
 739 }
 740
 741 void Mod_IDP2_Load(model_t *mod, void *buffer)
 742 {
 743         int i, j, k, hashindex, num, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end, numverts;
 744         float *stverts, s, t, scale[3], translate[3];
 745         qbyte *data;
 746         msurface_t *surface;
 747         md2_t *pinmodel;
 748         qbyte *base, *datapointer;
 749         md2frame_t *pinframe;
 750         char *inskin;
 751         md2triangle_t *intri;
 752         unsigned short *inst;
 753         struct md2verthash_s
 754         {
 755                 struct md2verthash_s *next;
 756                 int xyz;
 757                 float st[2];
 758         }
 759         *hash, **md2verthash, *md2verthashdata;
 760         skinframe_t tempskinframe;
 761         skinfile_t *skinfiles;
 762
 763         pinmodel = buffer;
 764         base = buffer;
 765
 766         version = LittleLong (pinmodel->version);
 767         if (version != MD2ALIAS_VERSION)
 768                 Host_Error ("%s has wrong version number (%i should be %i)",
 769                         loadmodel->name, version, MD2ALIAS_VERSION);
 770
 771         loadmodel->type = mod_alias;
 772         loadmodel->DrawSky = NULL;
 773         loadmodel->Draw = R_Model_Alias_Draw;
 774         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 775         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 776         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 777
 778         if (LittleLong(pinmodel->num_tris) < 1 || LittleLong(pinmodel->num_tris) > 65536)
 779                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 780         if (LittleLong(pinmodel->num_xyz) < 1 || LittleLong(pinmodel->num_xyz) > 65536)
 781                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 782         if (LittleLong(pinmodel->num_frames) < 1 || LittleLong(pinmodel->num_frames) > 65536)
 783                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 784         if (LittleLong(pinmodel->num_skins) < 0 || LittleLong(pinmodel->num_skins) > 256)
 785                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 786
 787         end = LittleLong(pinmodel->ofs_end);
 788         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins) <= 0 || LittleLong(pinmodel->ofs_skins) >= end))
 789                 Host_Error ("%s is not a valid model", loadmodel->name);
 790         if (LittleLong(pinmodel->ofs_st) <= 0 || LittleLong(pinmodel->ofs_st) >= end)
 791                 Host_Error ("%s is not a valid model", loadmodel->name);
 792         if (LittleLong(pinmodel->ofs_tris) <= 0 || LittleLong(pinmodel->ofs_tris) >= end)
 793                 Host_Error ("%s is not a valid model", loadmodel->name);
 794         if (LittleLong(pinmodel->ofs_frames) <= 0 || LittleLong(pinmodel->ofs_frames) >= end)
 795                 Host_Error ("%s is not a valid model", loadmodel->name);
 796         if (LittleLong(pinmodel->ofs_glcmds) <= 0 || LittleLong(pinmodel->ofs_glcmds) >= end)
 797                 Host_Error ("%s is not a valid model", loadmodel->name);
 798
 799         loadmodel->num_surfaces = 1;
 800         loadmodel->nummeshes = loadmodel->num_surfaces;
 801         data = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->nummeshes * sizeof(surfmesh_t *) + loadmodel->nummeshes * sizeof(surfmesh_t));
 802         loadmodel->data_surfaces = (void *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
 803         loadmodel->meshlist = (void *)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
 804         for (i = 0;i < loadmodel->num_surfaces;i++)
 805                 loadmodel->meshlist[i] = (void *)data;data += sizeof(surfmesh_t);
 806
 807         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 808         numxyz = LittleLong(pinmodel->num_xyz);
 809         numst = LittleLong(pinmodel->num_st);
 810         loadmodel->meshlist[0]->num_triangles = LittleLong(pinmodel->num_tris);
 811         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 812         loadmodel->meshlist[0]->num_morphframes = loadmodel->numframes;
 813         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 814
 815         loadmodel->flags = 0; // there are no MD2 flags
 816         loadmodel->synctype = ST_RAND;
 817
 818         // load the skins
 819         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 820         if ((skinfiles = Mod_LoadSkinFiles()))
 821         {
 822                 loadmodel->meshlist[0]->num_skins = loadmodel->numskins;
 823                 loadmodel->meshlist[0]->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_skins * sizeof(texture_t));
 824                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->meshlist[0]->data_skins, skinfiles, "default", "");
 825                 Mod_FreeSkinFiles(skinfiles);
 826         }
 827         else if (loadmodel->numskins)
 828         {
 829                 // skins found (most likely not a player model)
 830                 loadmodel->meshlist[0]->num_skins = loadmodel->numskins;
 831                 loadmodel->meshlist[0]->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_skins * sizeof(texture_t));
 832                 for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
 833                 {
 834                         if (Mod_LoadSkinFrame(&tempskinframe, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, true, false, true))
 835                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->meshlist[0]->data_skins + i, &tempskinframe);
 836                         else
 837                         {
 838                                 Con_Printf("%s is missing skin \"%s\"\n", loadmodel->name, inskin);
 839                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->meshlist[0]->data_skins + i, NULL);
 840                         }
 841                 }
 842         }
 843         else
 844         {
 845                 // no skins (most likely a player model)
 846                 loadmodel->numskins = 1;
 847                 loadmodel->meshlist[0]->num_skins = loadmodel->numskins;
 848                 loadmodel->meshlist[0]->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_skins * sizeof(texture_t));
 849                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->meshlist[0]->data_skins, NULL);
 850         }
 851
 852         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 853         for (i = 0;i < loadmodel->numskins;i++)
 854         {
 855                 loadmodel->skinscenes[i].firstframe = i;
 856                 loadmodel->skinscenes[i].framecount = 1;
 857                 loadmodel->skinscenes[i].loop = true;
 858                 loadmodel->skinscenes[i].framerate = 10;
 859         }
 860
 861         // load the triangles and stvert data
 862         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 863         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 864         skinwidth = LittleLong(pinmodel->skinwidth);
 865         skinheight = LittleLong(pinmodel->skinheight);
 866
 867         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 868         s = 1.0f / skinwidth;
 869         t = 1.0f / skinheight;
 870         for (i = 0;i < numst;i++)
 871         {
 872                 j = (unsigned short) LittleShort(inst[i*2+0]);
 873                 k = (unsigned short) LittleShort(inst[i*2+1]);
 874                 if (j >= skinwidth || k >= skinheight)
 875                 {
 876                         Con_Printf("%s has an invalid skin coordinate (%i %i) on vert %i, changing to 0 0\n", loadmodel->name, j, k, i);
 877                         j = 0;
 878                         k = 0;
 879                 }
 880                 stverts[i*2+0] = j * s;
 881                 stverts[i*2+1] = k * t;
 882         }
 883
 884         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 885         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->meshlist[0]->num_triangles * 3 * sizeof(*hash));
 886         // swap the triangle list
 887         num = 0;
 888         loadmodel->meshlist[0]->data_element3i = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_triangles * sizeof(int[3]));
 889         for (i = 0;i < loadmodel->meshlist[0]->num_triangles;i++)
 890         {
 891                 for (j = 0;j < 3;j++)
 892                 {
 893                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 894                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 895                         if (xyz >= numxyz)
 896                         {
 897                                 Con_Printf("%s has an invalid xyz index (%i) on triangle %i, resetting to 0\n", loadmodel->name, xyz, i);
 898                                 xyz = 0;
 899                         }
 900                         if (st >= numst)
 901                         {
 902                                 Con_Printf("%s has an invalid st index (%i) on triangle %i, resetting to 0\n", loadmodel->name, st, i);
 903                                 st = 0;
 904                         }
 905                         s = stverts[st*2+0];
 906                         t = stverts[st*2+1];
 907                         hashindex = (xyz * 17 + st) & 255;
 908                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 909                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 910                                         break;
 911                         if (hash == NULL)
 912                         {
 913                                 hash = md2verthashdata + num++;
 914                                 hash->xyz = xyz;
 915                                 hash->st[0] = s;
 916                                 hash->st[1] = t;
 917                                 hash->next = md2verthash[hashindex];
 918                                 md2verthash[hashindex] = hash;
 919                         }
 920                         loadmodel->meshlist[0]->data_element3i[i*3+j] = (hash - md2verthashdata);
 921                 }
 922         }
 923
 924         Mem_Free(stverts);
 925
 926         numverts = num;
 927         loadmodel->meshlist[0]->num_vertices = numverts;
 928         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 929         loadmodel->meshlist[0]->data_texcoordtexture2f = Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
 930         for (i = 0;i < num;i++)
 931         {
 932                 hash = md2verthashdata + i;
 933                 vertremap[i] = hash->xyz;
 934                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+0] = hash->st[0];
 935                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+1] = hash->st[1];
 936         }
 937
 938         Mem_Free(md2verthash);
 939         Mem_Free(md2verthashdata);
 940
 941         // load the frames
 942         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 943         loadmodel->meshlist[0]->data_morphvertex3f = Mem_Alloc(loadmodel->mempool, numverts * loadmodel->meshlist[0]->num_morphframes * sizeof(float[3]));
 944         for (i = 0;i < loadmodel->meshlist[0]->num_morphframes;i++)
 945         {
 946                 pinframe = (md2frame_t *)datapointer;
 947                 datapointer += sizeof(md2frame_t);
 948                 for (j = 0;j < 3;j++)
 949                 {
 950                         scale[j] = LittleFloat(pinframe->scale[j]);
 951                         translate[j] = LittleFloat(pinframe->translate[j]);
 952                 }
 953                 Mod_MD2_ConvertVerts(scale, translate, (void *)datapointer, loadmodel->meshlist[0]->data_morphvertex3f + i * numverts * 3, numverts, vertremap);
 954                 datapointer += numxyz * sizeof(trivertx_t);
 955
 956                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 957                 loadmodel->animscenes[i].firstframe = i;
 958                 loadmodel->animscenes[i].framecount = 1;
 959                 loadmodel->animscenes[i].framerate = 10;
 960                 loadmodel->animscenes[i].loop = true;
 961         }
 962
 963         Mem_Free(vertremap);
 964
 965         loadmodel->meshlist[0]->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_triangles * sizeof(int[3]));
 966         Mod_BuildTriangleNeighbors(loadmodel->meshlist[0]->data_neighbor3i, loadmodel->meshlist[0]->data_element3i, loadmodel->meshlist[0]->num_triangles);
 967         Mod_CalcAliasModelBBoxes();
 968         Mod_Alias_Mesh_CompileFrameZero(loadmodel->meshlist[0]);
 969
 970         surface = loadmodel->data_surfaces;
 971         surface->groupmesh = loadmodel->meshlist[0];
 972         // FIXME: need to store data_skins in msurface_t, not surfmesh_t
 973         surface->texture = surface->groupmesh->data_skins;
 974         surface->num_firsttriangle = 0;
 975         surface->num_triangles = surface->groupmesh->num_triangles;
 976         surface->num_firstvertex = 0;
 977         surface->num_vertices = surface->groupmesh->num_vertices;
 978 }
 979
 980 void Mod_IDP3_Load(model_t *mod, void *buffer)
 981 {
 982         int i, j, k, version;
 983         qbyte *data;
 984         msurface_t *surface;
 985         surfmesh_t *mesh;
 986         md3modelheader_t *pinmodel;
 987         md3frameinfo_t *pinframe;
 988         md3mesh_t *pinmesh;
 989         md3tag_t *pintag;
 990         skinfile_t *skinfiles;
 991
 992         pinmodel = buffer;
 993
 994         if (memcmp(pinmodel->identifier, "IDP3", 4))
 995                 Host_Error ("%s is not a MD3 (IDP3) file\n", loadmodel->name);
 996         version = LittleLong (pinmodel->version);
 997         if (version != MD3VERSION)
 998                 Host_Error ("%s has wrong version number (%i should be %i)",
 999                         loadmodel->name, version, MD3VERSION);
1000
1001         skinfiles = Mod_LoadSkinFiles();
1002         if (loadmodel->numskins < 1)
1003                 loadmodel->numskins = 1;
1004
1005         loadmodel->type = mod_alias;
1006         loadmodel->DrawSky = NULL;
1007         loadmodel->Draw = R_Model_Alias_Draw;
1008         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
1009         loadmodel->DrawLight = R_Model_Alias_DrawLight;
1010         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
1011         loadmodel->flags = LittleLong(pinmodel->flags);
1012         loadmodel->synctype = ST_RAND;
1013
1014         // set up some global info about the model
1015         loadmodel->numframes = LittleLong(pinmodel->num_frames);
1016         loadmodel->num_surfaces = LittleLong(pinmodel->num_meshes);
1017
1018         // make skinscenes for the skins (no groups)
1019         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
1020         for (i = 0;i < loadmodel->numskins;i++)
1021         {
1022                 loadmodel->skinscenes[i].firstframe = i;
1023                 loadmodel->skinscenes[i].framecount = 1;
1024                 loadmodel->skinscenes[i].loop = true;
1025                 loadmodel->skinscenes[i].framerate = 10;
1026         }
1027
1028         // load frameinfo
1029         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
1030         for (i = 0, pinframe = (md3frameinfo_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
1031         {
1032                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
1033                 loadmodel->animscenes[i].firstframe = i;
1034                 loadmodel->animscenes[i].framecount = 1;
1035                 loadmodel->animscenes[i].framerate = 10;
1036                 loadmodel->animscenes[i].loop = true;
1037         }
1038
1039         // load tags
1040         loadmodel->num_tagframes = loadmodel->numframes;
1041         loadmodel->num_tags = LittleLong(pinmodel->num_tags);
1042         loadmodel->data_tags = Mem_Alloc(loadmodel->mempool, loadmodel->num_tagframes * loadmodel->num_tags * sizeof(aliastag_t));
1043         for (i = 0, pintag = (md3tag_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_tags));i < loadmodel->num_tagframes * loadmodel->num_tags;i++, pintag++)
1044         {
1045                 strcpy(loadmodel->data_tags[i].name, pintag->name);
1046                 Matrix4x4_CreateIdentity(&loadmodel->data_tags[i].matrix);
1047                 for (j = 0;j < 3;j++)
1048                 {
1049                         for (k = 0;k < 3;k++)
1050                                 loadmodel->data_tags[i].matrix.m[j][k] = LittleFloat(pintag->rotationmatrix[k * 3 + j]);
1051                         loadmodel->data_tags[i].matrix.m[j][3] = LittleFloat(pintag->origin[j]);
1052                 }
1053                 //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);
1054         }
1055
1056         // load meshes
1057         loadmodel->nummeshes = loadmodel->num_surfaces;
1058         data = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->nummeshes * sizeof(surfmesh_t *) + loadmodel->nummeshes * sizeof(surfmesh_t));
1059         loadmodel->data_surfaces = (void *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
1060         loadmodel->meshlist = (void *)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
1061         for (i = 0;i < loadmodel->num_surfaces;i++)
1062                 mesh = loadmodel->meshlist[i] = (void *)data;data += sizeof(surfmesh_t);
1063         for (i = 0, pinmesh = (md3mesh_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_meshes));i < loadmodel->num_surfaces;i++, pinmesh = (md3mesh_t *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_end)))
1064         {
1065                 if (memcmp(pinmesh->identifier, "IDP3", 4))
1066                         Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)\n");
1067                 mesh = loadmodel->meshlist[i];
1068                 mesh->num_skins = loadmodel->numskins;
1069                 mesh->num_morphframes = LittleLong(pinmesh->num_frames);
1070                 mesh->num_vertices = LittleLong(pinmesh->num_vertices);
1071                 mesh->num_triangles = LittleLong(pinmesh->num_triangles);
1072                 mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(texture_t));
1073                 mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1074                 mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1075                 mesh->data_texcoordtexture2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
1076                 mesh->data_morphvertex3f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * mesh->num_morphframes * sizeof(float[3]));
1077                 for (j = 0;j < mesh->num_triangles * 3;j++)
1078                         mesh->data_element3i[j] = LittleLong(((int *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_elements)))[j]);
1079                 for (j = 0;j < mesh->num_vertices;j++)
1080                 {
1081                         mesh->data_texcoordtexture2f[j * 2 + 0] = LittleFloat(((float *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 0]);
1082                         mesh->data_texcoordtexture2f[j * 2 + 1] = LittleFloat(((float *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 1]);
1083                 }
1084                 for (j = 0;j < mesh->num_vertices * mesh->num_morphframes;j++)
1085                 {
1086                         mesh->data_morphvertex3f[j * 3 + 0] = LittleShort(((short *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 0]) * (1.0f / 64.0f);
1087                         mesh->data_morphvertex3f[j * 3 + 1] = LittleShort(((short *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 1]) * (1.0f / 64.0f);
1088                         mesh->data_morphvertex3f[j * 3 + 2] = LittleShort(((short *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 2]) * (1.0f / 64.0f);
1089                 }
1090
1091                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
1092                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1093                 Mod_Alias_Mesh_CompileFrameZero(mesh);
1094
1095                 if (LittleLong(pinmesh->num_shaders) >= 1)
1096                         Mod_BuildAliasSkinsFromSkinFiles(mesh->data_skins, skinfiles, pinmesh->name, ((md3shader_t *)((qbyte *) pinmesh + LittleLong(pinmesh->lump_shaders)))->name);
1097                 else
1098                         for (j = 0;j < mesh->num_skins;j++)
1099                                 Mod_BuildAliasSkinFromSkinFrame(mesh->data_skins + j, NULL);
1100
1101                 surface = loadmodel->data_surfaces + i;
1102                 surface->groupmesh = mesh;
1103                 // FIXME: need to store data_skins in msurface_t, not surfmesh_t
1104                 surface->texture = mesh->data_skins;
1105                 surface->num_firsttriangle = 0;
1106                 surface->num_triangles = mesh->num_triangles;
1107                 surface->num_firstvertex = 0;
1108                 surface->num_vertices = mesh->num_vertices;
1109         }
1110         Mod_CalcAliasModelBBoxes();
1111         Mod_FreeSkinFiles(skinfiles);
1112 }
1113
1114 void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer)
1115 {
1116         zymtype1header_t *pinmodel, *pheader;
1117         qbyte *pbase;
1118         int i, j, k, l, numposes, *bonecount, *vertbonecounts, count, *renderlist, *renderlistend, *outelements, *remapvertices;
1119         float modelradius, corner[2], *poses, *intexcoord2f, *outtexcoord2f;
1120         zymvertex_t *verts, *vertdata;
1121         zymscene_t *scene;
1122         zymbone_t *bone;
1123         char *shadername;
1124         skinfile_t *skinfiles;
1125         qbyte *data;
1126         msurface_t *surface;
1127         surfmesh_t *mesh;
1128
1129         pinmodel = (void *)buffer;
1130         pbase = buffer;
1131         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
1132                 Host_Error ("Mod_ZYMOTICMODEL_Load: %s is not a zymotic model\n");
1133         if (BigLong(pinmodel->type) != 1)
1134                 Host_Error ("Mod_ZYMOTICMODEL_Load: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
1135
1136         loadmodel->type = mod_alias;
1137         loadmodel->DrawSky = NULL;
1138         loadmodel->Draw = R_Model_Alias_Draw;
1139         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
1140         loadmodel->DrawLight = R_Model_Alias_DrawLight;
1141         //loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox; // FIXME: implement collisions
1142         loadmodel->flags = 0; // there are no flags on zym models
1143         loadmodel->synctype = ST_RAND;
1144
1145         // byteswap header
1146         pheader = pinmodel;
1147         pheader->type = BigLong(pinmodel->type);
1148         pheader->filesize = BigLong(pinmodel->filesize);
1149         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
1150         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
1151         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
1152         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
1153         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
1154         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
1155         pheader->radius = BigFloat(pinmodel->radius);
1156         pheader->numverts = BigLong(pinmodel->numverts);
1157         pheader->numtris = BigLong(pinmodel->numtris);
1158         pheader->numshaders = BigLong(pinmodel->numshaders);
1159         pheader->numbones = BigLong(pinmodel->numbones);
1160         pheader->numscenes = BigLong(pinmodel->numscenes);
1161         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
1162         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
1163         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
1164         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
1165         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
1166         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
1167         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
1168         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
1169         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
1170         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
1171         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
1172         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
1173         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
1174         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
1175         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
1176         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
1177         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
1178         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
1179
1180         loadmodel->numframes = pheader->numscenes;
1181         loadmodel->num_surfaces = pheader->numshaders;
1182
1183         skinfiles = Mod_LoadSkinFiles();
1184         if (loadmodel->numskins < 1)
1185                 loadmodel->numskins = 1;
1186
1187         // make skinscenes for the skins (no groups)
1188         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
1189         for (i = 0;i < loadmodel->numskins;i++)
1190         {
1191                 loadmodel->skinscenes[i].firstframe = i;
1192                 loadmodel->skinscenes[i].framecount = 1;
1193                 loadmodel->skinscenes[i].loop = true;
1194                 loadmodel->skinscenes[i].framerate = 10;
1195         }
1196
1197         // model bbox
1198         modelradius = pheader->radius;
1199         for (i = 0;i < 3;i++)
1200         {
1201                 loadmodel->normalmins[i] = pheader->mins[i];
1202                 loadmodel->normalmaxs[i] = pheader->maxs[i];
1203                 loadmodel->rotatedmins[i] = -modelradius;
1204                 loadmodel->rotatedmaxs[i] = modelradius;
1205         }
1206         corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
1207         corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
1208         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
1209         if (loadmodel->yawmaxs[0] > modelradius)
1210                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
1211         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
1212         loadmodel->yawmins[2] = loadmodel->normalmins[2];
1213         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
1214         loadmodel->radius = modelradius;
1215         loadmodel->radius2 = modelradius * modelradius;
1216
1217         // go through the lumps, swapping things
1218
1219         //zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
1220         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
1221         scene = (void *) (pheader->lump_scenes.start + pbase);
1222         numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
1223         for (i = 0;i < pheader->numscenes;i++)
1224         {
1225                 memcpy(loadmodel->animscenes[i].name, scene->name, 32);
1226                 loadmodel->animscenes[i].firstframe = BigLong(scene->start);
1227                 loadmodel->animscenes[i].framecount = BigLong(scene->length);
1228                 loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
1229                 loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
1230                 if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
1231                         Host_Error("%s scene->firstframe (%i) >= numposes (%i)\n", loadmodel->name, loadmodel->animscenes[i].firstframe, numposes);
1232                 if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
1233                         Host_Error("%s scene->firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->name, loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
1234                 if (loadmodel->animscenes[i].framerate < 0)
1235                         Host_Error("%s scene->framerate (%f) < 0\n", loadmodel->name, loadmodel->animscenes[i].framerate);
1236                 scene++;
1237         }
1238
1239         //zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
1240         loadmodel->num_poses = pheader->lump_poses.length / sizeof(float[3][4]);
1241         loadmodel->data_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
1242         poses = (void *) (pheader->lump_poses.start + pbase);
1243         for (i = 0;i < pheader->lump_poses.length / 4;i++)
1244                 loadmodel->data_poses[i] = BigFloat(poses[i]);
1245
1246         //zymlump_t lump_bones; // zymbone_t bone[numbones];
1247         loadmodel->num_bones = pheader->numbones;
1248         loadmodel->data_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(aliasbone_t));
1249         bone = (void *) (pheader->lump_bones.start + pbase);
1250         for (i = 0;i < pheader->numbones;i++)
1251         {
1252                 memcpy(loadmodel->data_bones[i].name, bone[i].name, sizeof(bone[i].name));
1253                 loadmodel->data_bones[i].flags = BigLong(bone[i].flags);
1254                 loadmodel->data_bones[i].parent = BigLong(bone[i].parent);
1255                 if (loadmodel->data_bones[i].parent >= i)
1256                         Host_Error("%s bone[%i].parent >= %i\n", loadmodel->name, i, i);
1257         }
1258
1259         //zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
1260         vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1261         bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
1262         for (i = 0;i < pheader->numverts;i++)
1263         {
1264                 vertbonecounts[i] = BigLong(bonecount[i]);
1265                 if (vertbonecounts[i] < 1)
1266                         Host_Error("%s bonecount[%i] < 1\n", loadmodel->name, i);
1267         }
1268
1269         //zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
1270         verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
1271         vertdata = (void *) (pheader->lump_verts.start + pbase);
1272         for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
1273         {
1274                 verts[i].bonenum = BigLong(vertdata[i].bonenum);
1275                 verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
1276                 verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
1277                 verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
1278         }
1279
1280         //zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1281         outtexcoord2f = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[2]));
1282         intexcoord2f = (void *) (pheader->lump_texcoords.start + pbase);
1283         for (i = 0;i < pheader->numverts;i++)
1284         {
1285                 outtexcoord2f[i*2+0] = BigFloat(intexcoord2f[i*2+0]);
1286                 // flip T coordinate for OpenGL
1287                 outtexcoord2f[i*2+1] = 1 - BigFloat(intexcoord2f[i*2+1]);
1288         }
1289
1290         //zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1291         //loadmodel->alias.zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1292         //memcpy(loadmodel->alias.zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1293
1294         loadmodel->nummeshes = loadmodel->num_surfaces;
1295         data = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->nummeshes * sizeof(surfmesh_t *) + loadmodel->nummeshes * sizeof(surfmesh_t));
1296         loadmodel->data_surfaces = (void *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
1297         loadmodel->meshlist = (void *)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
1298         for (i = 0;i < loadmodel->num_surfaces;i++)
1299                 mesh = loadmodel->meshlist[i] = (void *)data;data += sizeof(surfmesh_t);
1300
1301         //zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1302         //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)
1303         // byteswap, validate, and swap winding order of tris
1304         count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1305         if (pheader->lump_render.length != count)
1306                 Host_Error("%s renderlist is wrong size (%i bytes, should be %i bytes)\n", loadmodel->name, pheader->lump_render.length, count);
1307         renderlist = (void *) (pheader->lump_render.start + pbase);
1308         renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
1309         for (i = 0;i < loadmodel->num_surfaces;i++)
1310         {
1311                 if (renderlist >= renderlistend)
1312                         Host_Error("%s corrupt renderlist (wrong size)\n", loadmodel->name);
1313                 count = BigLong(*renderlist);renderlist++;
1314                 if (renderlist + count * 3 > renderlistend || (i == pheader->numshaders - 1 && renderlist + count * 3 != renderlistend))
1315                         Host_Error("%s corrupt renderlist (wrong size)\n", loadmodel->name);
1316                 mesh = loadmodel->meshlist[i];
1317                 mesh->num_skins = loadmodel->numskins;
1318                 mesh->num_triangles = count;
1319                 mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(texture_t));
1320                 mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1321                 mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1322                 outelements = mesh->data_element3i;
1323                 for (j = 0;j < mesh->num_triangles;j++)
1324                 {
1325                         outelements[2] = BigLong(renderlist[0]);
1326                         outelements[1] = BigLong(renderlist[1]);
1327                         outelements[0] = BigLong(renderlist[2]);
1328                         if ((unsigned int)outelements[0] >= (unsigned int)pheader->numverts
1329                          || (unsigned int)outelements[1] >= (unsigned int)pheader->numverts
1330                          || (unsigned int)outelements[2] >= (unsigned int)pheader->numverts)
1331                                 Host_Error("%s corrupt renderlist (out of bounds index)\n", loadmodel->name);
1332                         renderlist += 3;
1333                         outelements += 3;
1334                 }
1335                 remapvertices = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1336                 mesh->num_vertices = Mod_BuildVertexRemapTableFromElements(mesh->num_triangles * 3, mesh->data_element3i, pheader->numverts, remapvertices);
1337                 for (j = 0;j < mesh->num_triangles * 3;j++)
1338                         mesh->data_element3i[j] = remapvertices[mesh->data_element3i[j]];
1339                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1340                 mesh->data_texcoordtexture2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
1341                 for (j = 0;j < pheader->numverts;j++)
1342                 {
1343                         if (remapvertices[j] >= 0)
1344                         {
1345                                 mesh->data_texcoordtexture2f[remapvertices[j]*2+0] = outtexcoord2f[j*2+0];
1346                                 mesh->data_texcoordtexture2f[remapvertices[j]*2+1] = outtexcoord2f[j*2+1];
1347                         }
1348                 }
1349                 mesh->num_vertexboneweights = 0;
1350                 for (j = 0;j < mesh->num_vertices;j++)
1351                         if (remapvertices[j] >= 0)
1352                                 mesh->num_vertexboneweights += vertbonecounts[remapvertices[j]];
1353                 mesh->data_vertexboneweights = Mem_Alloc(loadmodel->mempool, mesh->num_vertexboneweights * sizeof(surfmeshvertexboneweight_t));
1354                 mesh->num_vertexboneweights = 0;
1355                 // note this vertexboneweight ordering requires that the remapvertices array is sequential numbers (separated by -1 values for omitted vertices)
1356                 l = 0;
1357                 for (j = 0;j < mesh->num_vertices;j++)
1358                 {
1359                         if (remapvertices[j] < 0)
1360                         {
1361                                 l += vertbonecounts[j];
1362                                 continue;
1363                         }
1364                         for (k = 0;k < vertbonecounts[j];k++)
1365                         {
1366                                 // this format really should have had a per vertexweight weight value...
1367                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].vertexindex = remapvertices[j];
1368                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].boneindex = verts[l].bonenum;
1369                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3] = 1.0f / vertbonecounts[j];
1370                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[0] = verts[l].origin[0] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1371                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[1] = verts[l].origin[1] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1372                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[2] = verts[l].origin[2] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1373                                 mesh->num_vertexboneweights++;
1374                                 l++;
1375                         }
1376                 }
1377
1378                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
1379                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1380                 Mod_Alias_Mesh_CompileFrameZero(mesh);
1381
1382                 // since zym models do not have named sections, reuse their shader
1383                 // name as the section name
1384                 shadername = (char *) (pheader->lump_shaders.start + pbase) + i * 32;
1385                 if (shadername[0])
1386                         Mod_BuildAliasSkinsFromSkinFiles(mesh->data_skins, skinfiles, shadername, shadername);
1387                 else
1388                         for (j = 0;j < mesh->num_skins;j++)
1389                                 Mod_BuildAliasSkinFromSkinFrame(mesh->data_skins + j, NULL);
1390
1391                 surface = loadmodel->data_surfaces + i;
1392                 surface->groupmesh = mesh;
1393                 // FIXME: need to store data_skins in msurface_t, not surfmesh_t
1394                 surface->texture = mesh->data_skins;
1395                 surface->num_firsttriangle = 0;
1396                 surface->num_triangles = mesh->num_triangles;
1397                 surface->num_firstvertex = 0;
1398                 surface->num_vertices = mesh->num_vertices;
1399         }
1400
1401         Mem_Free(vertbonecounts);
1402         Mem_Free(verts);
1403         Mem_Free(outtexcoord2f);
1404 }
1405