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, linetrace;
 184         float segmentmins[3], segmentmaxs[3];
 185         frameblend_t frameblend[4];
 186         msurface_t *surface;
 187         surfmesh_t *mesh;
 188         colbrushf_t *thisbrush_start = NULL, *thisbrush_end = NULL;
 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         memset(frameblend, 0, sizeof(frameblend));
 210         frameblend[0].frame = frame;
 211         frameblend[0].lerp = 1;
 212         for (i = 0, surface = model->data_surfaces;i < model->num_surfaces;i++, surface++)
 213         {
 214                 mesh = surface->groupmesh;
 215                 Mod_Alias_GetMesh_Vertex3f(model, frameblend, mesh, varray_vertex3f);
 216                 if (linetrace)
 217                         Collision_TraceLineTriangleMeshFloat(trace, boxstartmins, boxendmins, mesh->num_triangles, mesh->data_element3i, varray_vertex3f, SUPERCONTENTS_SOLID, segmentmins, segmentmaxs);
 218                 else
 219                         Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, mesh->num_triangles, mesh->data_element3i, varray_vertex3f, SUPERCONTENTS_SOLID, segmentmins, segmentmaxs);
 220         }
 221 }
 222
 223 static void Mod_CalcAliasModelBBoxes (void)
 224 {
 225         int vnum, meshnum;
 226         float dist, yawradius, radius;
 227         surfmesh_t *mesh;
 228         float *v;
 229         VectorClear(loadmodel->normalmins);
 230         VectorClear(loadmodel->normalmaxs);
 231         yawradius = 0;
 232         radius = 0;
 233         for (meshnum = 0;meshnum < loadmodel->num_surfaces;meshnum++)
 234         {
 235                 mesh = loadmodel->meshlist[meshnum];
 236                 for (vnum = 0, v = mesh->data_morphvertex3f;vnum < mesh->num_vertices * mesh->num_morphframes;vnum++, v += 3)
 237                 {
 238                         if (loadmodel->normalmins[0] > v[0]) loadmodel->normalmins[0] = v[0];
 239                         if (loadmodel->normalmins[1] > v[1]) loadmodel->normalmins[1] = v[1];
 240                         if (loadmodel->normalmins[2] > v[2]) loadmodel->normalmins[2] = v[2];
 241                         if (loadmodel->normalmaxs[0] < v[0]) loadmodel->normalmaxs[0] = v[0];
 242                         if (loadmodel->normalmaxs[1] < v[1]) loadmodel->normalmaxs[1] = v[1];
 243                         if (loadmodel->normalmaxs[2] < v[2]) loadmodel->normalmaxs[2] = v[2];
 244                         dist = v[0] * v[0] + v[1] * v[1];
 245                         if (yawradius < dist)
 246                                 yawradius = dist;
 247                         dist += v[2] * v[2];
 248                         if (radius < dist)
 249                                 radius = dist;
 250                 }
 251         }
 252         radius = sqrt(radius);
 253         yawradius = sqrt(yawradius);
 254         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -yawradius;
 255         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = yawradius;
 256         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 257         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 258         loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -radius;
 259         loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = radius;
 260         loadmodel->radius = radius;
 261         loadmodel->radius2 = radius * radius;
 262 }
 263
 264 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int *vertremap)
 265 {
 266         int i, j;
 267         vec3_t temp;
 268         for (i = 0;i < inverts;i++)
 269         {
 270                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
 271                         continue;
 272                 temp[0] = v[i].v[0] * scale[0] + translate[0];
 273                 temp[1] = v[i].v[1] * scale[1] + translate[1];
 274                 temp[2] = v[i].v[2] * scale[2] + translate[2];
 275                 j = vertremap[i]; // not onseam
 276                 if (j >= 0)
 277                         VectorCopy(temp, out3f + j * 3);
 278                 j = vertremap[i+inverts]; // onseam
 279                 if (j >= 0)
 280                         VectorCopy(temp, out3f + j * 3);
 281         }
 282 }
 283
 284 static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, vec3_t scale, vec3_t translate, int *vertremap)
 285 {
 286         int i, f, pose, groupframes;
 287         float interval;
 288         daliasframetype_t *pframetype;
 289         daliasframe_t *pinframe;
 290         daliasgroup_t *group;
 291         daliasinterval_t *intervals;
 292         animscene_t *scene;
 293         pose = 0;
 294         scene = loadmodel->animscenes;
 295         for (f = 0;f < loadmodel->numframes;f++)
 296         {
 297                 pframetype = (daliasframetype_t *)datapointer;
 298                 datapointer += sizeof(daliasframetype_t);
 299                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 300                 {
 301                         // a single frame is still treated as a group
 302                         interval = 0.1f;
 303                         groupframes = 1;
 304                 }
 305                 else
 306                 {
 307                         // read group header
 308                         group = (daliasgroup_t *)datapointer;
 309                         datapointer += sizeof(daliasgroup_t);
 310                         groupframes = LittleLong (group->numframes);
 311
 312                         // intervals (time per frame)
 313                         intervals = (daliasinterval_t *)datapointer;
 314                         datapointer += sizeof(daliasinterval_t) * groupframes;
 315
 316                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 317                         if (interval < 0.01f)
 318                         {
 319                                 Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
 320                                 interval = 0.1f;
 321                         }
 322                 }
 323
 324                 // get scene name from first frame
 325                 pinframe = (daliasframe_t *)datapointer;
 326
 327                 strcpy(scene->name, pinframe->name);
 328                 scene->firstframe = pose;
 329                 scene->framecount = groupframes;
 330                 scene->framerate = 1.0f / interval;
 331                 scene->loop = true;
 332                 scene++;
 333
 334                 // read frames
 335                 for (i = 0;i < groupframes;i++)
 336                 {
 337                         pinframe = (daliasframe_t *)datapointer;
 338                         datapointer += sizeof(daliasframe_t);
 339                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->meshlist[0]->data_morphvertex3f + pose * loadmodel->meshlist[0]->num_vertices * 3, vertremap);
 340                         datapointer += sizeof(trivertx_t) * inverts;
 341                         pose++;
 342                 }
 343         }
 344 }
 345
 346 static skinframe_t missingskinframe;
 347 static void Mod_BuildAliasSkinFromSkinFrame(texture_t *skin, skinframe_t *skinframe)
 348 {
 349         // hack
 350         if (skinframe == NULL)
 351         {
 352                 skinframe = &missingskinframe;
 353                 memset(skinframe, 0, sizeof(*skinframe));
 354                 skinframe->base = r_texture_notexture;
 355         }
 356
 357         skin->skin = *skinframe;
 358         skin->currentframe = skin;
 359         skin->basematerialflags = MATERIALFLAG_WALL;
 360         if (skin->skin.fog)
 361                 skin->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
 362         skin->currentmaterialflags = skin->basematerialflags;
 363 }
 364
 365 static void Mod_BuildAliasSkinsFromSkinFiles(texture_t *skin, skinfile_t *skinfile, char *meshname, char *shadername)
 366 {
 367         int i;
 368         skinfileitem_t *skinfileitem;
 369         skinframe_t tempskinframe;
 370         if (skinfile)
 371         {
 372                 // the skin += loadmodel->num_surfaces part of this is because data_textures on alias models is arranged as [numskins][numsurfaces]
 373                 for (i = 0;skinfile;skinfile = skinfile->next, i++, skin += loadmodel->num_surfaces)
 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_Q1BSP_Draw(entity_render_t *ent);
 418 extern void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist, const vec3_t lightmins, const vec3_t lightmaxs);
 419 extern void R_Q1BSP_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_Q1BSP_Draw;
 455         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
 456         loadmodel->DrawLight = R_Q1BSP_DrawLight;
 457         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 458
 459         loadmodel->num_surfaces = 1;
 460         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
 461         loadmodel->nummeshes = loadmodel->num_surfaces;
 462         data = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->nummeshes * sizeof(surfmesh_t *) + loadmodel->nummeshes * sizeof(surfmesh_t));
 463         loadmodel->data_surfaces = (void *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
 464         loadmodel->surfacelist = (void *)data;data += loadmodel->num_surfaces * sizeof(int);
 465         loadmodel->meshlist = (void *)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
 466         for (i = 0;i < loadmodel->num_surfaces;i++)
 467         {
 468                 loadmodel->surfacelist[i] = i;
 469                 loadmodel->meshlist[i] = (void *)data;data += sizeof(surfmesh_t);
 470         }
 471
 472         loadmodel->numskins = LittleLong(pinmodel->numskins);
 473         BOUNDI(loadmodel->numskins,0,65536);
 474         skinwidth = LittleLong (pinmodel->skinwidth);
 475         BOUNDI(skinwidth,0,65536);
 476         skinheight = LittleLong (pinmodel->skinheight);
 477         BOUNDI(skinheight,0,65536);
 478         numverts = LittleLong(pinmodel->numverts);
 479         BOUNDI(numverts,0,65536);
 480         loadmodel->meshlist[0]->num_triangles = LittleLong(pinmodel->numtris);
 481         BOUNDI(loadmodel->meshlist[0]->num_triangles,0,65536);
 482         loadmodel->numframes = LittleLong(pinmodel->numframes);
 483         BOUNDI(loadmodel->numframes,0,65536);
 484         loadmodel->synctype = LittleLong (pinmodel->synctype);
 485         BOUNDI(loadmodel->synctype,0,2);
 486         loadmodel->flags = LittleLong (pinmodel->flags);
 487
 488         for (i = 0;i < 3;i++)
 489         {
 490                 scale[i] = LittleFloat (pinmodel->scale[i]);
 491                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 492         }
 493
 494         startskins = datapointer;
 495         totalskins = 0;
 496         for (i = 0;i < loadmodel->numskins;i++)
 497         {
 498                 pinskintype = (daliasskintype_t *)datapointer;
 499                 datapointer += sizeof(daliasskintype_t);
 500                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 501                         groupskins = 1;
 502                 else
 503                 {
 504                         pinskingroup = (daliasskingroup_t *)datapointer;
 505                         datapointer += sizeof(daliasskingroup_t);
 506                         groupskins = LittleLong(pinskingroup->numskins);
 507                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 508                 }
 509
 510                 for (j = 0;j < groupskins;j++)
 511                 {
 512                         datapointer += skinwidth * skinheight;
 513                         totalskins++;
 514                 }
 515         }
 516
 517         pinstverts = (stvert_t *)datapointer;
 518         datapointer += sizeof(stvert_t) * numverts;
 519
 520         pintriangles = (dtriangle_t *)datapointer;
 521         datapointer += sizeof(dtriangle_t) * loadmodel->meshlist[0]->num_triangles;
 522
 523         startframes = datapointer;
 524         loadmodel->meshlist[0]->num_morphframes = 0;
 525         for (i = 0;i < loadmodel->numframes;i++)
 526         {
 527                 pinframetype = (daliasframetype_t *)datapointer;
 528                 datapointer += sizeof(daliasframetype_t);
 529                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 530                         groupframes = 1;
 531                 else
 532                 {
 533                         pinframegroup = (daliasgroup_t *)datapointer;
 534                         datapointer += sizeof(daliasgroup_t);
 535                         groupframes = LittleLong(pinframegroup->numframes);
 536                         datapointer += sizeof(daliasinterval_t) * groupframes;
 537                 }
 538
 539                 for (j = 0;j < groupframes;j++)
 540                 {
 541                         datapointer += sizeof(daliasframe_t);
 542                         datapointer += sizeof(trivertx_t) * numverts;
 543                         loadmodel->meshlist[0]->num_morphframes++;
 544                 }
 545         }
 546
 547         // store texture coordinates into temporary array, they will be stored
 548         // after usage is determined (triangle data)
 549         vertst = Mem_Alloc(tempmempool, numverts * 2 * sizeof(float[2]));
 550         vertremap = Mem_Alloc(tempmempool, numverts * 3 * sizeof(int));
 551         vertonseam = vertremap + numverts * 2;
 552
 553         scales = 1.0 / skinwidth;
 554         scalet = 1.0 / skinheight;
 555         for (i = 0;i < numverts;i++)
 556         {
 557                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 558                 vertst[i*2+0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 559                 vertst[i*2+1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 560                 vertst[(i+numverts)*2+0] = vertst[i*2+0] + 0.5;
 561                 vertst[(i+numverts)*2+1] = vertst[i*2+1];
 562         }
 563
 564 // load triangle data
 565         loadmodel->meshlist[0]->data_element3i = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->meshlist[0]->num_triangles);
 566
 567         // read the triangle elements
 568         for (i = 0;i < loadmodel->meshlist[0]->num_triangles;i++)
 569                 for (j = 0;j < 3;j++)
 570                         loadmodel->meshlist[0]->data_element3i[i*3+j] = LittleLong(pintriangles[i].vertindex[j]);
 571         // validate (note numverts is used because this is the original data)
 572         Mod_ValidateElements(loadmodel->meshlist[0]->data_element3i, loadmodel->meshlist[0]->num_triangles, numverts, __FILE__, __LINE__);
 573         // now butcher the elements according to vertonseam and tri->facesfront
 574         // and then compact the vertex set to remove duplicates
 575         for (i = 0;i < loadmodel->meshlist[0]->num_triangles;i++)
 576                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 577                         for (j = 0;j < 3;j++)
 578                                 if (vertonseam[loadmodel->meshlist[0]->data_element3i[i*3+j]])
 579                                         loadmodel->meshlist[0]->data_element3i[i*3+j] += numverts;
 580         // count the usage
 581         // (this uses vertremap to count usage to save some memory)
 582         for (i = 0;i < numverts*2;i++)
 583                 vertremap[i] = 0;
 584         for (i = 0;i < loadmodel->meshlist[0]->num_triangles*3;i++)
 585                 vertremap[loadmodel->meshlist[0]->data_element3i[i]]++;
 586         // build remapping table and compact array
 587         loadmodel->meshlist[0]->num_vertices = 0;
 588         for (i = 0;i < numverts*2;i++)
 589         {
 590                 if (vertremap[i])
 591                 {
 592                         vertremap[i] = loadmodel->meshlist[0]->num_vertices;
 593                         vertst[loadmodel->meshlist[0]->num_vertices*2+0] = vertst[i*2+0];
 594                         vertst[loadmodel->meshlist[0]->num_vertices*2+1] = vertst[i*2+1];
 595                         loadmodel->meshlist[0]->num_vertices++;
 596                 }
 597                 else
 598                         vertremap[i] = -1; // not used at all
 599         }
 600         // remap the elements to the new vertex set
 601         for (i = 0;i < loadmodel->meshlist[0]->num_triangles * 3;i++)
 602                 loadmodel->meshlist[0]->data_element3i[i] = vertremap[loadmodel->meshlist[0]->data_element3i[i]];
 603         // store the texture coordinates
 604         loadmodel->meshlist[0]->data_texcoordtexture2f = Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * loadmodel->meshlist[0]->num_vertices);
 605         for (i = 0;i < loadmodel->meshlist[0]->num_vertices;i++)
 606         {
 607                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+0] = vertst[i*2+0];
 608                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+1] = vertst[i*2+1];
 609         }
 610
 611 // load the frames
 612         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 613         loadmodel->meshlist[0]->data_morphvertex3f = Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * loadmodel->meshlist[0]->num_morphframes * loadmodel->meshlist[0]->num_vertices);
 614         loadmodel->meshlist[0]->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_triangles * sizeof(int[3]));
 615         Mod_MDL_LoadFrames (startframes, numverts, scale, translate, vertremap);
 616         Mod_BuildTriangleNeighbors(loadmodel->meshlist[0]->data_neighbor3i, loadmodel->meshlist[0]->data_element3i, loadmodel->meshlist[0]->num_triangles);
 617         Mod_CalcAliasModelBBoxes();
 618         Mod_Alias_Mesh_CompileFrameZero(loadmodel->meshlist[0]);
 619
 620         Mem_Free(vertst);
 621         Mem_Free(vertremap);
 622
 623         // load the skins
 624         skinfiles = Mod_LoadSkinFiles();
 625         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 626         loadmodel->num_textures = loadmodel->num_surfaces;
 627         loadmodel->data_textures = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * totalskins * sizeof(texture_t));
 628         if (skinfiles)
 629         {
 630                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures, skinfiles, "default", "");
 631                 Mod_FreeSkinFiles(skinfiles);
 632                 for (i = 0;i < loadmodel->numskins;i++)
 633                 {
 634                         loadmodel->skinscenes[i].firstframe = i;
 635                         loadmodel->skinscenes[i].framecount = 1;
 636                         loadmodel->skinscenes[i].loop = true;
 637                         loadmodel->skinscenes[i].framerate = 10;
 638                 }
 639         }
 640         else
 641         {
 642                 totalskins = 0;
 643                 datapointer = startskins;
 644                 for (i = 0;i < loadmodel->numskins;i++)
 645                 {
 646                         pinskintype = (daliasskintype_t *)datapointer;
 647                         datapointer += sizeof(daliasskintype_t);
 648
 649                         if (pinskintype->type == ALIAS_SKIN_SINGLE)
 650                         {
 651                                 groupskins = 1;
 652                                 interval = 0.1f;
 653                         }
 654                         else
 655                         {
 656                                 pinskingroup = (daliasskingroup_t *)datapointer;
 657                                 datapointer += sizeof(daliasskingroup_t);
 658
 659                                 groupskins = LittleLong (pinskingroup->numskins);
 660
 661                                 pinskinintervals = (daliasskininterval_t *)datapointer;
 662                                 datapointer += sizeof(daliasskininterval_t) * groupskins;
 663
 664                                 interval = LittleFloat(pinskinintervals[0].interval);
 665                                 if (interval < 0.01f)
 666                                 {
 667                                         Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
 668                                         interval = 0.1f;
 669                                 }
 670                         }
 671
 672                         sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 673                         loadmodel->skinscenes[i].firstframe = totalskins;
 674                         loadmodel->skinscenes[i].framecount = groupskins;
 675                         loadmodel->skinscenes[i].framerate = 1.0f / interval;
 676                         loadmodel->skinscenes[i].loop = true;
 677
 678                         for (j = 0;j < groupskins;j++)
 679                         {
 680                                 if (groupskins > 1)
 681                                         sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 682                                 else
 683                                         sprintf (name, "%s_%i", loadmodel->name, i);
 684                                 if (!Mod_LoadSkinFrame(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA | TEXF_PICMIP, true, false, true))
 685                                         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);
 686                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + totalskins * loadmodel->num_surfaces, &tempskinframe);
 687                                 datapointer += skinwidth * skinheight;
 688                                 totalskins++;
 689                         }
 690                 }
 691                 // check for skins that don't exist in the model, but do exist as external images
 692                 // (this was added because yummyluv kept pestering me about support for it)
 693                 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))
 694                 {
 695                         // expand the arrays to make room
 696                         tempskinscenes = loadmodel->skinscenes;
 697                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 698                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 699                         Mem_Free(tempskinscenes);
 700
 701                         tempaliasskins = loadmodel->data_textures;
 702                         loadmodel->data_textures = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * (totalskins + 1) * sizeof(texture_t));
 703                         memcpy(loadmodel->data_textures, tempaliasskins, loadmodel->num_surfaces * totalskins * sizeof(texture_t));
 704                         Mem_Free(tempaliasskins);
 705
 706                         // store the info about the new skin
 707                         Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + totalskins * loadmodel->num_surfaces, &tempskinframe);
 708                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 709                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 710                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 711                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 712                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 713
 714                         //increase skin counts
 715                         loadmodel->numskins++;
 716                         totalskins++;
 717                 }
 718         }
 719
 720         surface = loadmodel->data_surfaces;
 721         surface->texture = loadmodel->data_textures;
 722         surface->groupmesh = loadmodel->meshlist[0];
 723         surface->num_firsttriangle = 0;
 724         surface->num_triangles = surface->groupmesh->num_triangles;
 725         surface->num_firstvertex = 0;
 726         surface->num_vertices = surface->groupmesh->num_vertices;
 727 }
 728
 729 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int numverts, int *vertremap)
 730 {
 731         int i;
 732         trivertx_t *in;
 733         for (i = 0;i < numverts;i++, out3f += 3)
 734         {
 735                 in = v + vertremap[i];
 736                 out3f[0] = in->v[0] * scale[0] + translate[0];
 737                 out3f[1] = in->v[1] * scale[1] + translate[1];
 738                 out3f[2] = in->v[2] * scale[2] + translate[2];
 739         }
 740 }
 741
 742 void Mod_IDP2_Load(model_t *mod, void *buffer)
 743 {
 744         int i, j, k, hashindex, num, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end, numverts;
 745         float *stverts, s, t, scale[3], translate[3];
 746         qbyte *data;
 747         msurface_t *surface;
 748         md2_t *pinmodel;
 749         qbyte *base, *datapointer;
 750         md2frame_t *pinframe;
 751         char *inskin;
 752         md2triangle_t *intri;
 753         unsigned short *inst;
 754         struct md2verthash_s
 755         {
 756                 struct md2verthash_s *next;
 757                 int xyz;
 758                 float st[2];
 759         }
 760         *hash, **md2verthash, *md2verthashdata;
 761         skinframe_t tempskinframe;
 762         skinfile_t *skinfiles;
 763
 764         pinmodel = buffer;
 765         base = buffer;
 766
 767         version = LittleLong (pinmodel->version);
 768         if (version != MD2ALIAS_VERSION)
 769                 Host_Error ("%s has wrong version number (%i should be %i)",
 770                         loadmodel->name, version, MD2ALIAS_VERSION);
 771
 772         loadmodel->type = mod_alias;
 773         loadmodel->DrawSky = NULL;
 774         loadmodel->Draw = R_Q1BSP_Draw;
 775         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
 776         loadmodel->DrawLight = R_Q1BSP_DrawLight;
 777         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 778
 779         if (LittleLong(pinmodel->num_tris) < 1 || LittleLong(pinmodel->num_tris) > 65536)
 780                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 781         if (LittleLong(pinmodel->num_xyz) < 1 || LittleLong(pinmodel->num_xyz) > 65536)
 782                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 783         if (LittleLong(pinmodel->num_frames) < 1 || LittleLong(pinmodel->num_frames) > 65536)
 784                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 785         if (LittleLong(pinmodel->num_skins) < 0 || LittleLong(pinmodel->num_skins) > 256)
 786                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 787
 788         end = LittleLong(pinmodel->ofs_end);
 789         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins) <= 0 || LittleLong(pinmodel->ofs_skins) >= end))
 790                 Host_Error ("%s is not a valid model", loadmodel->name);
 791         if (LittleLong(pinmodel->ofs_st) <= 0 || LittleLong(pinmodel->ofs_st) >= end)
 792                 Host_Error ("%s is not a valid model", loadmodel->name);
 793         if (LittleLong(pinmodel->ofs_tris) <= 0 || LittleLong(pinmodel->ofs_tris) >= end)
 794                 Host_Error ("%s is not a valid model", loadmodel->name);
 795         if (LittleLong(pinmodel->ofs_frames) <= 0 || LittleLong(pinmodel->ofs_frames) >= end)
 796                 Host_Error ("%s is not a valid model", loadmodel->name);
 797         if (LittleLong(pinmodel->ofs_glcmds) <= 0 || LittleLong(pinmodel->ofs_glcmds) >= end)
 798                 Host_Error ("%s is not a valid model", loadmodel->name);
 799
 800         loadmodel->num_surfaces = 1;
 801         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
 802         loadmodel->nummeshes = loadmodel->num_surfaces;
 803         data = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->nummeshes * sizeof(surfmesh_t *) + loadmodel->nummeshes * sizeof(surfmesh_t));
 804         loadmodel->data_surfaces = (void *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
 805         loadmodel->surfacelist = (void *)data;data += loadmodel->num_surfaces * sizeof(int);
 806         loadmodel->meshlist = (void *)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
 807         for (i = 0;i < loadmodel->num_surfaces;i++)
 808         {
 809                 loadmodel->surfacelist[i] = i;
 810                 loadmodel->meshlist[i] = (void *)data;data += sizeof(surfmesh_t);
 811         }
 812
 813         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 814         numxyz = LittleLong(pinmodel->num_xyz);
 815         numst = LittleLong(pinmodel->num_st);
 816         loadmodel->meshlist[0]->num_triangles = LittleLong(pinmodel->num_tris);
 817         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 818         loadmodel->meshlist[0]->num_morphframes = loadmodel->numframes;
 819         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 820
 821         loadmodel->flags = 0; // there are no MD2 flags
 822         loadmodel->synctype = ST_RAND;
 823
 824         // load the skins
 825         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 826         skinfiles = Mod_LoadSkinFiles();
 827         if (skinfiles)
 828         {
 829                 loadmodel->num_textures = loadmodel->num_surfaces;
 830                 loadmodel->data_textures = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
 831                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures, skinfiles, "default", "");
 832                 Mod_FreeSkinFiles(skinfiles);
 833         }
 834         else if (loadmodel->numskins)
 835         {
 836                 // skins found (most likely not a player model)
 837                 loadmodel->num_textures = loadmodel->num_surfaces;
 838                 loadmodel->data_textures = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
 839                 for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
 840                 {
 841                         if (Mod_LoadSkinFrame(&tempskinframe, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, true, false, true))
 842                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i * loadmodel->num_surfaces, &tempskinframe);
 843                         else
 844                         {
 845                                 Con_Printf("%s is missing skin \"%s\"\n", loadmodel->name, inskin);
 846                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i * loadmodel->num_surfaces, NULL);
 847                         }
 848                 }
 849         }
 850         else
 851         {
 852                 // no skins (most likely a player model)
 853                 loadmodel->numskins = 1;
 854                 loadmodel->num_textures = loadmodel->num_surfaces;
 855                 loadmodel->data_textures = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
 856                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures, NULL);
 857         }
 858
 859         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 860         for (i = 0;i < loadmodel->numskins;i++)
 861         {
 862                 loadmodel->skinscenes[i].firstframe = i;
 863                 loadmodel->skinscenes[i].framecount = 1;
 864                 loadmodel->skinscenes[i].loop = true;
 865                 loadmodel->skinscenes[i].framerate = 10;
 866         }
 867
 868         // load the triangles and stvert data
 869         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 870         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 871         skinwidth = LittleLong(pinmodel->skinwidth);
 872         skinheight = LittleLong(pinmodel->skinheight);
 873
 874         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 875         s = 1.0f / skinwidth;
 876         t = 1.0f / skinheight;
 877         for (i = 0;i < numst;i++)
 878         {
 879                 j = (unsigned short) LittleShort(inst[i*2+0]);
 880                 k = (unsigned short) LittleShort(inst[i*2+1]);
 881                 if (j >= skinwidth || k >= skinheight)
 882                 {
 883                         Con_Printf("%s has an invalid skin coordinate (%i %i) on vert %i, changing to 0 0\n", loadmodel->name, j, k, i);
 884                         j = 0;
 885                         k = 0;
 886                 }
 887                 stverts[i*2+0] = j * s;
 888                 stverts[i*2+1] = k * t;
 889         }
 890
 891         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 892         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->meshlist[0]->num_triangles * 3 * sizeof(*hash));
 893         // swap the triangle list
 894         num = 0;
 895         loadmodel->meshlist[0]->data_element3i = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_triangles * sizeof(int[3]));
 896         for (i = 0;i < loadmodel->meshlist[0]->num_triangles;i++)
 897         {
 898                 for (j = 0;j < 3;j++)
 899                 {
 900                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 901                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 902                         if (xyz >= numxyz)
 903                         {
 904                                 Con_Printf("%s has an invalid xyz index (%i) on triangle %i, resetting to 0\n", loadmodel->name, xyz, i);
 905                                 xyz = 0;
 906                         }
 907                         if (st >= numst)
 908                         {
 909                                 Con_Printf("%s has an invalid st index (%i) on triangle %i, resetting to 0\n", loadmodel->name, st, i);
 910                                 st = 0;
 911                         }
 912                         s = stverts[st*2+0];
 913                         t = stverts[st*2+1];
 914                         hashindex = (xyz * 17 + st) & 255;
 915                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 916                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 917                                         break;
 918                         if (hash == NULL)
 919                         {
 920                                 hash = md2verthashdata + num++;
 921                                 hash->xyz = xyz;
 922                                 hash->st[0] = s;
 923                                 hash->st[1] = t;
 924                                 hash->next = md2verthash[hashindex];
 925                                 md2verthash[hashindex] = hash;
 926                         }
 927                         loadmodel->meshlist[0]->data_element3i[i*3+j] = (hash - md2verthashdata);
 928                 }
 929         }
 930
 931         Mem_Free(stverts);
 932
 933         numverts = num;
 934         loadmodel->meshlist[0]->num_vertices = numverts;
 935         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 936         loadmodel->meshlist[0]->data_texcoordtexture2f = Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
 937         for (i = 0;i < num;i++)
 938         {
 939                 hash = md2verthashdata + i;
 940                 vertremap[i] = hash->xyz;
 941                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+0] = hash->st[0];
 942                 loadmodel->meshlist[0]->data_texcoordtexture2f[i*2+1] = hash->st[1];
 943         }
 944
 945         Mem_Free(md2verthash);
 946         Mem_Free(md2verthashdata);
 947
 948         // load the frames
 949         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 950         loadmodel->meshlist[0]->data_morphvertex3f = Mem_Alloc(loadmodel->mempool, numverts * loadmodel->meshlist[0]->num_morphframes * sizeof(float[3]));
 951         for (i = 0;i < loadmodel->meshlist[0]->num_morphframes;i++)
 952         {
 953                 pinframe = (md2frame_t *)datapointer;
 954                 datapointer += sizeof(md2frame_t);
 955                 for (j = 0;j < 3;j++)
 956                 {
 957                         scale[j] = LittleFloat(pinframe->scale[j]);
 958                         translate[j] = LittleFloat(pinframe->translate[j]);
 959                 }
 960                 Mod_MD2_ConvertVerts(scale, translate, (void *)datapointer, loadmodel->meshlist[0]->data_morphvertex3f + i * numverts * 3, numverts, vertremap);
 961                 datapointer += numxyz * sizeof(trivertx_t);
 962
 963                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 964                 loadmodel->animscenes[i].firstframe = i;
 965                 loadmodel->animscenes[i].framecount = 1;
 966                 loadmodel->animscenes[i].framerate = 10;
 967                 loadmodel->animscenes[i].loop = true;
 968         }
 969
 970         Mem_Free(vertremap);
 971
 972         loadmodel->meshlist[0]->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->meshlist[0]->num_triangles * sizeof(int[3]));
 973         Mod_BuildTriangleNeighbors(loadmodel->meshlist[0]->data_neighbor3i, loadmodel->meshlist[0]->data_element3i, loadmodel->meshlist[0]->num_triangles);
 974         Mod_CalcAliasModelBBoxes();
 975         Mod_Alias_Mesh_CompileFrameZero(loadmodel->meshlist[0]);
 976
 977         surface = loadmodel->data_surfaces;
 978         surface->groupmesh = loadmodel->meshlist[0];
 979         surface->texture = loadmodel->data_textures;
 980         surface->num_firsttriangle = 0;
 981         surface->num_triangles = surface->groupmesh->num_triangles;
 982         surface->num_firstvertex = 0;
 983         surface->num_vertices = surface->groupmesh->num_vertices;
 984 }
 985
 986 void Mod_IDP3_Load(model_t *mod, void *buffer)
 987 {
 988         int i, j, k, version;
 989         qbyte *data;
 990         msurface_t *surface;
 991         surfmesh_t *mesh;
 992         md3modelheader_t *pinmodel;
 993         md3frameinfo_t *pinframe;
 994         md3mesh_t *pinmesh;
 995         md3tag_t *pintag;
 996         skinfile_t *skinfiles;
 997
 998         pinmodel = buffer;
 999
1000         if (memcmp(pinmodel->identifier, "IDP3", 4))
1001                 Host_Error ("%s is not a MD3 (IDP3) file\n", loadmodel->name);
1002         version = LittleLong (pinmodel->version);
1003         if (version != MD3VERSION)
1004                 Host_Error ("%s has wrong version number (%i should be %i)",
1005                         loadmodel->name, version, MD3VERSION);
1006
1007         skinfiles = Mod_LoadSkinFiles();
1008         if (loadmodel->numskins < 1)
1009                 loadmodel->numskins = 1;
1010
1011         loadmodel->type = mod_alias;
1012         loadmodel->DrawSky = NULL;
1013         loadmodel->Draw = R_Q1BSP_Draw;
1014         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
1015         loadmodel->DrawLight = R_Q1BSP_DrawLight;
1016         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
1017         loadmodel->flags = LittleLong(pinmodel->flags);
1018         loadmodel->synctype = ST_RAND;
1019
1020         // set up some global info about the model
1021         loadmodel->numframes = LittleLong(pinmodel->num_frames);
1022         loadmodel->num_surfaces = LittleLong(pinmodel->num_meshes);
1023
1024         // make skinscenes for the skins (no groups)
1025         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
1026         for (i = 0;i < loadmodel->numskins;i++)
1027         {
1028                 loadmodel->skinscenes[i].firstframe = i;
1029                 loadmodel->skinscenes[i].framecount = 1;
1030                 loadmodel->skinscenes[i].loop = true;
1031                 loadmodel->skinscenes[i].framerate = 10;
1032         }
1033
1034         // load frameinfo
1035         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
1036         for (i = 0, pinframe = (md3frameinfo_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
1037         {
1038                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
1039                 loadmodel->animscenes[i].firstframe = i;
1040                 loadmodel->animscenes[i].framecount = 1;
1041                 loadmodel->animscenes[i].framerate = 10;
1042                 loadmodel->animscenes[i].loop = true;
1043         }
1044
1045         // load tags
1046         loadmodel->num_tagframes = loadmodel->numframes;
1047         loadmodel->num_tags = LittleLong(pinmodel->num_tags);
1048         loadmodel->data_tags = Mem_Alloc(loadmodel->mempool, loadmodel->num_tagframes * loadmodel->num_tags * sizeof(aliastag_t));
1049         for (i = 0, pintag = (md3tag_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_tags));i < loadmodel->num_tagframes * loadmodel->num_tags;i++, pintag++)
1050         {
1051                 strcpy(loadmodel->data_tags[i].name, pintag->name);
1052                 Matrix4x4_CreateIdentity(&loadmodel->data_tags[i].matrix);
1053                 for (j = 0;j < 3;j++)
1054                 {
1055                         for (k = 0;k < 3;k++)
1056                                 loadmodel->data_tags[i].matrix.m[j][k] = LittleFloat(pintag->rotationmatrix[k * 3 + j]);
1057                         loadmodel->data_tags[i].matrix.m[j][3] = LittleFloat(pintag->origin[j]);
1058                 }
1059                 //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);
1060         }
1061
1062         // load meshes
1063         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
1064         loadmodel->nummeshes = loadmodel->num_surfaces;
1065         loadmodel->num_textures = loadmodel->num_surfaces;
1066         data = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->nummeshes * sizeof(surfmesh_t *) + loadmodel->nummeshes * sizeof(surfmesh_t) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
1067         loadmodel->data_surfaces = (void *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
1068         loadmodel->surfacelist = (void *)data;data += loadmodel->num_surfaces * sizeof(int);
1069         loadmodel->meshlist = (void *)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
1070         loadmodel->data_textures = (void *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
1071         for (i = 0;i < loadmodel->num_surfaces;i++)
1072         {
1073                 loadmodel->surfacelist[i] = i;
1074                 loadmodel->meshlist[i] = (void *)data;data += sizeof(surfmesh_t);
1075         }
1076         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)))
1077         {
1078                 if (memcmp(pinmesh->identifier, "IDP3", 4))
1079                         Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)\n");
1080                 mesh = loadmodel->meshlist[i];
1081                 mesh->num_morphframes = LittleLong(pinmesh->num_frames);
1082                 mesh->num_vertices = LittleLong(pinmesh->num_vertices);
1083                 mesh->num_triangles = LittleLong(pinmesh->num_triangles);
1084                 mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1085                 mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1086                 mesh->data_texcoordtexture2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
1087                 mesh->data_morphvertex3f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * mesh->num_morphframes * sizeof(float[3]));
1088                 for (j = 0;j < mesh->num_triangles * 3;j++)
1089                         mesh->data_element3i[j] = LittleLong(((int *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_elements)))[j]);
1090                 for (j = 0;j < mesh->num_vertices;j++)
1091                 {
1092                         mesh->data_texcoordtexture2f[j * 2 + 0] = LittleFloat(((float *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 0]);
1093                         mesh->data_texcoordtexture2f[j * 2 + 1] = LittleFloat(((float *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 1]);
1094                 }
1095                 for (j = 0;j < mesh->num_vertices * mesh->num_morphframes;j++)
1096                 {
1097                         mesh->data_morphvertex3f[j * 3 + 0] = LittleShort(((short *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 0]) * (1.0f / 64.0f);
1098                         mesh->data_morphvertex3f[j * 3 + 1] = LittleShort(((short *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 1]) * (1.0f / 64.0f);
1099                         mesh->data_morphvertex3f[j * 3 + 2] = LittleShort(((short *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_framevertices)))[j * 4 + 2]) * (1.0f / 64.0f);
1100                 }
1101
1102                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
1103                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1104                 Mod_Alias_Mesh_CompileFrameZero(mesh);
1105
1106                 if (LittleLong(pinmesh->num_shaders) >= 1)
1107                         Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, pinmesh->name, ((md3shader_t *)((qbyte *) pinmesh + LittleLong(pinmesh->lump_shaders)))->name);
1108                 else
1109                         for (j = 0;j < loadmodel->numskins;j++)
1110                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i + j * loadmodel->num_surfaces, NULL);
1111
1112                 surface = loadmodel->data_surfaces + i;
1113                 surface->groupmesh = mesh;
1114                 surface->texture = loadmodel->data_textures + i;
1115                 surface->num_firsttriangle = 0;
1116                 surface->num_triangles = mesh->num_triangles;
1117                 surface->num_firstvertex = 0;
1118                 surface->num_vertices = mesh->num_vertices;
1119         }
1120         Mod_CalcAliasModelBBoxes();
1121         Mod_FreeSkinFiles(skinfiles);
1122 }
1123
1124 void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer)
1125 {
1126         zymtype1header_t *pinmodel, *pheader;
1127         qbyte *pbase;
1128         int i, j, k, l, numposes, *bonecount, *vertbonecounts, count, *renderlist, *renderlistend, *outelements, *remapvertices;
1129         float modelradius, corner[2], *poses, *intexcoord2f, *outtexcoord2f;
1130         zymvertex_t *verts, *vertdata;
1131         zymscene_t *scene;
1132         zymbone_t *bone;
1133         char *shadername;
1134         skinfile_t *skinfiles;
1135         qbyte *data;
1136         msurface_t *surface;
1137         surfmesh_t *mesh;
1138
1139         pinmodel = (void *)buffer;
1140         pbase = buffer;
1141         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
1142                 Host_Error ("Mod_ZYMOTICMODEL_Load: %s is not a zymotic model\n");
1143         if (BigLong(pinmodel->type) != 1)
1144                 Host_Error ("Mod_ZYMOTICMODEL_Load: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
1145
1146         loadmodel->type = mod_alias;
1147         loadmodel->DrawSky = NULL;
1148         loadmodel->Draw = R_Q1BSP_Draw;
1149         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
1150         loadmodel->DrawLight = R_Q1BSP_DrawLight;
1151         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
1152         loadmodel->flags = 0; // there are no flags on zym models
1153         loadmodel->synctype = ST_RAND;
1154
1155         // byteswap header
1156         pheader = pinmodel;
1157         pheader->type = BigLong(pinmodel->type);
1158         pheader->filesize = BigLong(pinmodel->filesize);
1159         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
1160         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
1161         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
1162         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
1163         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
1164         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
1165         pheader->radius = BigFloat(pinmodel->radius);
1166         pheader->numverts = BigLong(pinmodel->numverts);
1167         pheader->numtris = BigLong(pinmodel->numtris);
1168         pheader->numshaders = BigLong(pinmodel->numshaders);
1169         pheader->numbones = BigLong(pinmodel->numbones);
1170         pheader->numscenes = BigLong(pinmodel->numscenes);
1171         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
1172         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
1173         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
1174         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
1175         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
1176         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
1177         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
1178         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
1179         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
1180         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
1181         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
1182         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
1183         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
1184         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
1185         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
1186         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
1187         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
1188         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
1189
1190         loadmodel->numframes = pheader->numscenes;
1191         loadmodel->num_surfaces = pheader->numshaders;
1192
1193         skinfiles = Mod_LoadSkinFiles();
1194         if (loadmodel->numskins < 1)
1195                 loadmodel->numskins = 1;
1196
1197         // make skinscenes for the skins (no groups)
1198         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
1199         for (i = 0;i < loadmodel->numskins;i++)
1200         {
1201                 loadmodel->skinscenes[i].firstframe = i;
1202                 loadmodel->skinscenes[i].framecount = 1;
1203                 loadmodel->skinscenes[i].loop = true;
1204                 loadmodel->skinscenes[i].framerate = 10;
1205         }
1206
1207         // model bbox
1208         modelradius = pheader->radius;
1209         for (i = 0;i < 3;i++)
1210         {
1211                 loadmodel->normalmins[i] = pheader->mins[i];
1212                 loadmodel->normalmaxs[i] = pheader->maxs[i];
1213                 loadmodel->rotatedmins[i] = -modelradius;
1214                 loadmodel->rotatedmaxs[i] = modelradius;
1215         }
1216         corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
1217         corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
1218         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
1219         if (loadmodel->yawmaxs[0] > modelradius)
1220                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
1221         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
1222         loadmodel->yawmins[2] = loadmodel->normalmins[2];
1223         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
1224         loadmodel->radius = modelradius;
1225         loadmodel->radius2 = modelradius * modelradius;
1226
1227         // go through the lumps, swapping things
1228
1229         //zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
1230         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
1231         scene = (void *) (pheader->lump_scenes.start + pbase);
1232         numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
1233         for (i = 0;i < pheader->numscenes;i++)
1234         {
1235                 memcpy(loadmodel->animscenes[i].name, scene->name, 32);
1236                 loadmodel->animscenes[i].firstframe = BigLong(scene->start);
1237                 loadmodel->animscenes[i].framecount = BigLong(scene->length);
1238                 loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
1239                 loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
1240                 if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
1241                         Host_Error("%s scene->firstframe (%i) >= numposes (%i)\n", loadmodel->name, loadmodel->animscenes[i].firstframe, numposes);
1242                 if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
1243                         Host_Error("%s scene->firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->name, loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
1244                 if (loadmodel->animscenes[i].framerate < 0)
1245                         Host_Error("%s scene->framerate (%f) < 0\n", loadmodel->name, loadmodel->animscenes[i].framerate);
1246                 scene++;
1247         }
1248
1249         //zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
1250         loadmodel->num_poses = pheader->lump_poses.length / sizeof(float[3][4]);
1251         loadmodel->data_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
1252         poses = (void *) (pheader->lump_poses.start + pbase);
1253         for (i = 0;i < pheader->lump_poses.length / 4;i++)
1254                 loadmodel->data_poses[i] = BigFloat(poses[i]);
1255
1256         //zymlump_t lump_bones; // zymbone_t bone[numbones];
1257         loadmodel->num_bones = pheader->numbones;
1258         loadmodel->data_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(aliasbone_t));
1259         bone = (void *) (pheader->lump_bones.start + pbase);
1260         for (i = 0;i < pheader->numbones;i++)
1261         {
1262                 memcpy(loadmodel->data_bones[i].name, bone[i].name, sizeof(bone[i].name));
1263                 loadmodel->data_bones[i].flags = BigLong(bone[i].flags);
1264                 loadmodel->data_bones[i].parent = BigLong(bone[i].parent);
1265                 if (loadmodel->data_bones[i].parent >= i)
1266                         Host_Error("%s bone[%i].parent >= %i\n", loadmodel->name, i, i);
1267         }
1268
1269         //zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
1270         vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1271         bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
1272         for (i = 0;i < pheader->numverts;i++)
1273         {
1274                 vertbonecounts[i] = BigLong(bonecount[i]);
1275                 if (vertbonecounts[i] < 1)
1276                         Host_Error("%s bonecount[%i] < 1\n", loadmodel->name, i);
1277         }
1278
1279         //zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
1280         verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
1281         vertdata = (void *) (pheader->lump_verts.start + pbase);
1282         for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
1283         {
1284                 verts[i].bonenum = BigLong(vertdata[i].bonenum);
1285                 verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
1286                 verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
1287                 verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
1288         }
1289
1290         //zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1291         outtexcoord2f = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[2]));
1292         intexcoord2f = (void *) (pheader->lump_texcoords.start + pbase);
1293         for (i = 0;i < pheader->numverts;i++)
1294         {
1295                 outtexcoord2f[i*2+0] = BigFloat(intexcoord2f[i*2+0]);
1296                 // flip T coordinate for OpenGL
1297                 outtexcoord2f[i*2+1] = 1 - BigFloat(intexcoord2f[i*2+1]);
1298         }
1299
1300         //zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1301         //loadmodel->alias.zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1302         //memcpy(loadmodel->alias.zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1303
1304         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
1305         loadmodel->nummeshes = loadmodel->num_surfaces;
1306         loadmodel->num_textures = loadmodel->num_surfaces;
1307         data = Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->nummeshes * sizeof(surfmesh_t *) + loadmodel->nummeshes * sizeof(surfmesh_t) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
1308         loadmodel->data_surfaces = (void *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
1309         loadmodel->surfacelist = (void *)data;data += loadmodel->num_surfaces * sizeof(int);
1310         loadmodel->meshlist = (void *)data;data += loadmodel->num_surfaces * sizeof(surfmesh_t *);
1311         loadmodel->data_textures = (void *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
1312         for (i = 0;i < loadmodel->num_surfaces;i++)
1313         {
1314                 loadmodel->surfacelist[i] = i;
1315                 loadmodel->meshlist[i] = (void *)data;data += sizeof(surfmesh_t);
1316         }
1317
1318         //zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1319         //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)
1320         // byteswap, validate, and swap winding order of tris
1321         count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1322         if (pheader->lump_render.length != count)
1323                 Host_Error("%s renderlist is wrong size (%i bytes, should be %i bytes)\n", loadmodel->name, pheader->lump_render.length, count);
1324         renderlist = (void *) (pheader->lump_render.start + pbase);
1325         renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
1326         for (i = 0;i < loadmodel->num_surfaces;i++)
1327         {
1328                 if (renderlist >= renderlistend)
1329                         Host_Error("%s corrupt renderlist (wrong size)\n", loadmodel->name);
1330                 count = BigLong(*renderlist);renderlist++;
1331                 if (renderlist + count * 3 > renderlistend || (i == pheader->numshaders - 1 && renderlist + count * 3 != renderlistend))
1332                         Host_Error("%s corrupt renderlist (wrong size)\n", loadmodel->name);
1333                 mesh = loadmodel->meshlist[i];
1334                 mesh->num_triangles = count;
1335                 mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1336                 mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
1337                 outelements = mesh->data_element3i;
1338                 for (j = 0;j < mesh->num_triangles;j++)
1339                 {
1340                         outelements[2] = BigLong(renderlist[0]);
1341                         outelements[1] = BigLong(renderlist[1]);
1342                         outelements[0] = BigLong(renderlist[2]);
1343                         if ((unsigned int)outelements[0] >= (unsigned int)pheader->numverts
1344                          || (unsigned int)outelements[1] >= (unsigned int)pheader->numverts
1345                          || (unsigned int)outelements[2] >= (unsigned int)pheader->numverts)
1346                                 Host_Error("%s corrupt renderlist (out of bounds index)\n", loadmodel->name);
1347                         renderlist += 3;
1348                         outelements += 3;
1349                 }
1350                 remapvertices = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1351                 mesh->num_vertices = Mod_BuildVertexRemapTableFromElements(mesh->num_triangles * 3, mesh->data_element3i, pheader->numverts, remapvertices);
1352                 for (j = 0;j < mesh->num_triangles * 3;j++)
1353                         mesh->data_element3i[j] = remapvertices[mesh->data_element3i[j]];
1354                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1355                 mesh->data_texcoordtexture2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
1356                 for (j = 0;j < pheader->numverts;j++)
1357                 {
1358                         if (remapvertices[j] >= 0)
1359                         {
1360                                 mesh->data_texcoordtexture2f[remapvertices[j]*2+0] = outtexcoord2f[j*2+0];
1361                                 mesh->data_texcoordtexture2f[remapvertices[j]*2+1] = outtexcoord2f[j*2+1];
1362                         }
1363                 }
1364                 mesh->num_vertexboneweights = 0;
1365                 for (j = 0;j < mesh->num_vertices;j++)
1366                         if (remapvertices[j] >= 0)
1367                                 mesh->num_vertexboneweights += vertbonecounts[remapvertices[j]];
1368                 mesh->data_vertexboneweights = Mem_Alloc(loadmodel->mempool, mesh->num_vertexboneweights * sizeof(surfmeshvertexboneweight_t));
1369                 mesh->num_vertexboneweights = 0;
1370                 // note this vertexboneweight ordering requires that the remapvertices array is sequential numbers (separated by -1 values for omitted vertices)
1371                 l = 0;
1372                 for (j = 0;j < mesh->num_vertices;j++)
1373                 {
1374                         if (remapvertices[j] < 0)
1375                         {
1376                                 l += vertbonecounts[j];
1377                                 continue;
1378                         }
1379                         for (k = 0;k < vertbonecounts[j];k++)
1380                         {
1381                                 // this format really should have had a per vertexweight weight value...
1382                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].vertexindex = remapvertices[j];
1383                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].boneindex = verts[l].bonenum;
1384                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3] = 1.0f / vertbonecounts[j];
1385                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[0] = verts[l].origin[0] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1386                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[1] = verts[l].origin[1] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1387                                 mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[2] = verts[l].origin[2] * mesh->data_vertexboneweights[mesh->num_vertexboneweights].origin[3];
1388                                 mesh->num_vertexboneweights++;
1389                                 l++;
1390                         }
1391                 }
1392
1393                 Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
1394                 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1395                 Mod_Alias_Mesh_CompileFrameZero(mesh);
1396
1397                 // since zym models do not have named sections, reuse their shader
1398                 // name as the section name
1399                 shadername = (char *) (pheader->lump_shaders.start + pbase) + i * 32;
1400                 if (shadername[0])
1401                         Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, shadername, shadername);
1402                 else
1403                         for (j = 0;j < loadmodel->numskins;j++)
1404                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i + j * loadmodel->num_surfaces, NULL);
1405
1406                 surface = loadmodel->data_surfaces + i;
1407                 surface->groupmesh = mesh;
1408                 surface->texture = loadmodel->data_textures + i;
1409                 surface->num_firsttriangle = 0;
1410                 surface->num_triangles = mesh->num_triangles;
1411                 surface->num_firstvertex = 0;
1412                 surface->num_vertices = mesh->num_vertices;
1413         }
1414
1415         Mem_Free(vertbonecounts);
1416         Mem_Free(verts);
1417         Mem_Free(outtexcoord2f);
1418 }
1419