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
  24 static cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0"};
  25
  26 void Mod_AliasInit (void)
  27 {
  28         Cvar_RegisterVariable(&r_mipskins);
  29 }
  30
  31 // LordHavoc: proper bounding box considerations
  32 static float aliasbboxmin[3], aliasbboxmax[3], modelyawradius, modelradius;
  33
  34 static float vertst[MAXALIASVERTS][2];
  35 static int vertusage[MAXALIASVERTS];
  36 static int vertonseam[MAXALIASVERTS];
  37 static int vertremap[MAXALIASVERTS];
  38 static int temptris[MAXALIASTRIS][3];
  39
  40 static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, aliasvertex_t *out)
  41 {
  42         int i, j;
  43         float dist;
  44         vec3_t temp;
  45         for (i = 0;i < inverts;i++)
  46         {
  47                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
  48                         continue;
  49
  50                 temp[0] = v[i].v[0] * scale[0] + translate[0];
  51                 temp[1] = v[i].v[1] * scale[1] + translate[1];
  52                 temp[2] = v[i].v[2] * scale[2] + translate[2];
  53                 // update bounding box
  54                 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
  55                 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
  56                 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
  57                 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
  58                 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
  59                 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
  60                 dist = temp[0]*temp[0]+temp[1]*temp[1];
  61                 if (modelyawradius < dist)
  62                         modelyawradius = dist;
  63                 dist += temp[2]*temp[2];
  64                 if (modelradius < dist)
  65                         modelradius = dist;
  66
  67                 j = vertremap[i]; // not onseam
  68                 if (j >= 0)
  69                         VectorCopy(temp, out[j].origin);
  70                 j = vertremap[i+inverts]; // onseam
  71                 if (j >= 0)
  72                         VectorCopy(temp, out[j].origin);
  73         }
  74 }
  75
  76 static void Mod_BuildAliasVertexTextureVectors(int numtriangles, const int *elements, int numverts, aliasvertex_t *vertices, const float *texcoords, float *vertexbuffer, float *svectorsbuffer, float *tvectorsbuffer, float *normalsbuffer)
  77 {
  78         int i;
  79         for (i = 0;i < numverts;i++)
  80                 VectorCopy(vertices[i].origin, &vertexbuffer[i * 4]);
  81         Mod_BuildTextureVectorsAndNormals(numverts, numtriangles, vertexbuffer, texcoords, elements, svectorsbuffer, tvectorsbuffer, normalsbuffer);
  82         for (i = 0;i < numverts;i++)
  83         {
  84                 vertices[i].normal[0] = normalsbuffer[i * 4 + 0];
  85                 vertices[i].normal[1] = normalsbuffer[i * 4 + 1];
  86                 vertices[i].normal[2] = normalsbuffer[i * 4 + 2];
  87                 vertices[i].svector[0] = svectorsbuffer[i * 4 + 0];
  88                 vertices[i].svector[1] = svectorsbuffer[i * 4 + 1];
  89                 vertices[i].svector[2] = svectorsbuffer[i * 4 + 2];
  90         }
  91 }
  92
  93 static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, vec3_t scale, vec3_t translate)
  94 {
  95         daliasframetype_t       *pframetype;
  96         daliasframe_t           *pinframe;
  97         daliasgroup_t           *group;
  98         daliasinterval_t        *intervals;
  99         int                                     i, f, pose, groupframes;
 100         float                           interval;
 101         animscene_t                     *scene;
 102         float                           *vertexbuffer, *svectorsbuffer, *tvectorsbuffer, *normalsbuffer;
 103         pose = 0;
 104         scene = loadmodel->animscenes;
 105         vertexbuffer = Mem_Alloc(tempmempool, loadmodel->numverts * sizeof(float[4]) * 4);
 106         svectorsbuffer = vertexbuffer + loadmodel->numverts * 4;
 107         tvectorsbuffer = svectorsbuffer + loadmodel->numverts * 4;
 108         normalsbuffer = tvectorsbuffer + loadmodel->numverts * 4;
 109         for (f = 0;f < loadmodel->numframes;f++)
 110         {
 111                 pframetype = (daliasframetype_t *)datapointer;
 112                 datapointer += sizeof(daliasframetype_t);
 113                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 114                 {
 115                         // a single frame is still treated as a group
 116                         interval = 0.1f;
 117                         groupframes = 1;
 118                 }
 119                 else
 120                 {
 121                         // read group header
 122                         group = (daliasgroup_t *)datapointer;
 123                         datapointer += sizeof(daliasgroup_t);
 124                         groupframes = LittleLong (group->numframes);
 125
 126                         // intervals (time per frame)
 127                         intervals = (daliasinterval_t *)datapointer;
 128                         datapointer += sizeof(daliasinterval_t) * groupframes;
 129
 130                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 131                         if (interval < 0.01f)
 132                                 Host_Error("Mod_LoadAliasGroup: invalid interval");
 133                 }
 134
 135                 // get scene name from first frame
 136                 pinframe = (daliasframe_t *)datapointer;
 137
 138                 strcpy(scene->name, pinframe->name);
 139                 scene->firstframe = pose;
 140                 scene->framecount = groupframes;
 141                 scene->framerate = 1.0f / interval;
 142                 scene->loop = true;
 143                 scene++;
 144
 145                 // read frames
 146                 for (i = 0;i < groupframes;i++)
 147                 {
 148                         pinframe = (daliasframe_t *)datapointer;
 149                         datapointer += sizeof(daliasframe_t);
 150                         Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->mdlmd2data_pose + pose * loadmodel->numverts);
 151                         Mod_BuildAliasVertexTextureVectors(loadmodel->numtris, loadmodel->mdlmd2data_indices, loadmodel->numverts, loadmodel->mdlmd2data_pose + pose * loadmodel->numverts, loadmodel->mdlmd2data_texcoords, vertexbuffer, svectorsbuffer, tvectorsbuffer, normalsbuffer);
 152                         datapointer += sizeof(trivertx_t) * inverts;
 153                         pose++;
 154                 }
 155         }
 156         Mem_Free(vertexbuffer);
 157 }
 158
 159 static rtexture_t *GL_TextureForSkinLayer(const qbyte *in, int width, int height, const char *name, const unsigned int *palette, int precache)
 160 {
 161         int i;
 162         for (i = 0;i < width*height;i++)
 163                 if (((qbyte *)&palette[in[i]])[3] > 0)
 164                         return R_LoadTexture2D (loadmodel->texturepool, name, width, height, in, TEXTYPE_PALETTE, (r_mipskins.integer ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0), palette);
 165         return NULL;
 166 }
 167
 168 static int Mod_LoadExternalSkin (char *basename, skinframe_t *skinframe, int precache)
 169 {
 170         skinframe->base   = loadtextureimagewithmaskandnmap(loadmodel->texturepool, va("%s_normal", basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0), 1);
 171         if (!skinframe->base)
 172                 skinframe->base   = loadtextureimagewithmaskandnmap(loadmodel->texturepool, basename, 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0), 1);
 173         skinframe->fog    = image_masktex;
 174         skinframe->nmap   = image_nmaptex;
 175         skinframe->gloss  = loadtextureimage(loadmodel->texturepool, va("%s_gloss" , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 176         skinframe->pants  = loadtextureimage(loadmodel->texturepool, va("%s_pants" , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 177         skinframe->shirt  = loadtextureimage(loadmodel->texturepool, va("%s_shirt" , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 178         skinframe->glow   = loadtextureimage(loadmodel->texturepool, va("%s_glow"  , basename), 0, 0, false, TEXF_ALPHA | (precache ? TEXF_PRECACHE : 0) | (r_mipskins.integer ? TEXF_MIPMAP : 0));
 179         skinframe->merged = NULL;
 180         return skinframe->base != NULL || skinframe->pants != NULL || skinframe->shirt != NULL || skinframe->glow != NULL;
 181 }
 182
 183 static int Mod_LoadInternalSkin (char *basename, qbyte *skindata, int width, int height, skinframe_t *skinframe, int precache)
 184 {
 185         qbyte *temp1, *temp2;
 186         if (!skindata)
 187                 return false;
 188         temp1 = Mem_Alloc(loadmodel->mempool, width * height * 8);
 189         temp2 = temp1 + width * height * 4;
 190         Image_Copy8bitRGBA(skindata, temp1, width * height, palette_nofullbrights);
 191         Image_HeightmapToNormalmap(temp1, temp2, width, height, false, 1);
 192         skinframe->nmap   = R_LoadTexture2D(loadmodel->texturepool, va("%s_nmap", basename), width, height, temp2, TEXTYPE_RGBA, (r_mipskins.integer ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0), NULL);
 193         Mem_Free(temp1);
 194         skinframe->gloss  = NULL;
 195         skinframe->pants  = GL_TextureForSkinLayer(skindata, width, height, va("%s_pants", basename), palette_pantsaswhite, false); // pants
 196         skinframe->shirt  = GL_TextureForSkinLayer(skindata, width, height, va("%s_shirt", basename), palette_shirtaswhite, false); // shirt
 197         skinframe->glow   = GL_TextureForSkinLayer(skindata, width, height, va("%s_glow", basename), palette_onlyfullbrights, precache); // glow
 198         if (skinframe->pants || skinframe->shirt)
 199         {
 200                 skinframe->base   = GL_TextureForSkinLayer(skindata, width, height, va("%s_normal", basename), palette_nocolormapnofullbrights, false); // normal (no special colors)
 201                 skinframe->merged = GL_TextureForSkinLayer(skindata, width, height, va("%s_body", basename), palette_nofullbrights, precache); // body (normal + pants + shirt, but not glow)
 202         }
 203         else
 204                 skinframe->base   = GL_TextureForSkinLayer(skindata, width, height, va("%s_base", basename), palette_nofullbrights, precache); // no special colors
 205         // quake model skins don't have alpha
 206         skinframe->fog = NULL;
 207         return true;
 208 }
 209
 210 void Mod_BuildMDLMD2MeshInfo(void)
 211 {
 212         int i;
 213         aliasmesh_t *mesh;
 214         aliasskin_t *skin;
 215         aliaslayer_t *layer;
 216         skinframe_t *skinframe;
 217
 218         loadmodel->mdlmd2data_triangleneighbors = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 219         Mod_ValidateElements(loadmodel->mdlmd2data_indices, loadmodel->numtris, loadmodel->numverts, __FILE__, __LINE__);
 220         Mod_BuildTriangleNeighbors(loadmodel->mdlmd2data_triangleneighbors, loadmodel->mdlmd2data_indices, loadmodel->numtris);
 221
 222         loadmodel->mdlmd2num_meshes = 1;
 223         mesh = loadmodel->mdlmd2data_meshes = Mem_Alloc(loadmodel->mempool, loadmodel->mdlmd2num_meshes * sizeof(aliasmesh_t));
 224         mesh->num_skins = 0;
 225         mesh->num_frames = 0;
 226         for (i = 0;i < loadmodel->numframes;i++)
 227                 mesh->num_frames += loadmodel->animscenes[i].framecount;
 228         for (i = 0;i < loadmodel->numskins;i++)
 229                 mesh->num_skins += loadmodel->skinscenes[i].framecount;
 230         mesh->num_triangles = loadmodel->numtris;
 231         mesh->num_vertices = loadmodel->numverts;
 232         mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(aliasskin_t));
 233         mesh->data_elements = loadmodel->mdlmd2data_indices;
 234         mesh->data_neighbors = loadmodel->mdlmd2data_triangleneighbors;
 235         mesh->data_texcoords = loadmodel->mdlmd2data_texcoords;
 236         mesh->data_vertices = loadmodel->mdlmd2data_pose;
 237         for (i = 0, skin = mesh->data_skins, skinframe = loadmodel->skinframes;i < mesh->num_skins;i++, skin++, skinframe++)
 238         {
 239                 skin->flags = 0;
 240                 // fog texture only exists if some pixels are transparent...
 241                 if (skinframe->fog != NULL)
 242                         skin->flags |= ALIASSKIN_TRANSPARENT;
 243                 // fog and gloss layers always exist
 244                 skin->num_layers = 2;
 245                 if (skinframe->glow != NULL)
 246                         skin->num_layers++;
 247                 if (skinframe->merged != NULL)
 248                         skin->num_layers++;
 249                 if (skinframe->base != NULL)
 250                         skin->num_layers++;
 251                 if (skinframe->pants != NULL)
 252                         skin->num_layers++;
 253                 if (skinframe->shirt != NULL)
 254                         skin->num_layers++;
 255                 layer = skin->data_layers = Mem_Alloc(loadmodel->mempool, skin->num_layers * sizeof(aliaslayer_t));
 256                 if (skinframe->glow != NULL)
 257                 {
 258                         layer->flags = ALIASLAYER_REALTIME_NODRAW;
 259                         layer->texture = skinframe->glow;
 260                         layer++;
 261                 }
 262                 if (skinframe->merged != NULL)
 263                 {
 264                         layer->flags = ALIASLAYER_COLORMAP_NODRAW | ALIASLAYER_DIFFUSE;
 265                         if (skinframe->glow != NULL)
 266                                 layer->flags |= ALIASLAYER_ADD;
 267                         layer->texture = skinframe->merged;
 268                         layer->nmap = skinframe->nmap;
 269                         layer++;
 270                 }
 271                 if (skinframe->base != NULL)
 272                 {
 273                         layer->flags = ALIASLAYER_COLORMAP_DRAW | ALIASLAYER_DIFFUSE;
 274                         if (skinframe->glow != NULL)
 275                                 layer->flags |= ALIASLAYER_ADD;
 276                         layer->texture = skinframe->base;
 277                         layer->nmap = skinframe->nmap;
 278                         layer++;
 279                 }
 280                 if (skinframe->pants != NULL)
 281                 {
 282                         layer->flags = ALIASLAYER_COLORMAP_DRAW | ALIASLAYER_COLORMAP_DIFFUSE_SHIRT;
 283                         if (skinframe->glow != NULL || skinframe->base != NULL)
 284                                 layer->flags |= ALIASLAYER_ADD;
 285                         layer->texture = skinframe->pants;
 286                         layer->nmap = skinframe->nmap;
 287                         layer++;
 288                 }
 289                 if (skinframe->shirt != NULL)
 290                 {
 291                         layer->flags = ALIASLAYER_COLORMAP_DRAW | ALIASLAYER_COLORMAP_DIFFUSE_SHIRT;
 292                         if (skinframe->glow != NULL || skinframe->base != NULL || skinframe->pants != NULL)
 293                                 layer->flags |= ALIASLAYER_ADD;
 294                         layer->texture = skinframe->shirt;
 295                         layer->nmap = skinframe->nmap;
 296                         layer++;
 297                 }
 298                 layer->flags = ALIASLAYER_REALTIME_DRAW | ALIASLAYER_SPECULAR;
 299                 layer->texture = skinframe->gloss;
 300                 layer->nmap = skinframe->nmap;
 301                 layer++;
 302                 layer->flags = ALIASLAYER_REALTIME_NODRAW | ALIASLAYER_FOG;
 303                 layer->texture = skinframe->fog;
 304                 layer++;
 305         }
 306 }
 307
 308 #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);
 309 #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);
 310 extern void R_Model_Alias_Draw(entity_render_t *ent);
 311 extern void R_Model_Alias_DrawFakeShadow(entity_render_t *ent);
 312 extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 313 extern void R_Model_Alias_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor);
 314 void Mod_LoadAliasModel (model_t *mod, void *buffer)
 315 {
 316         int                                             i, j, version, numverts, totalposes, totalskins, skinwidth, skinheight, totalverts, groupframes, groupskins;
 317         mdl_t                                   *pinmodel;
 318         stvert_t                                *pinstverts;
 319         dtriangle_t                             *pintriangles;
 320         daliasskintype_t                *pinskintype;
 321         daliasskingroup_t               *pinskingroup;
 322         daliasskininterval_t    *pinskinintervals;
 323         daliasframetype_t               *pinframetype;
 324         daliasgroup_t                   *pinframegroup;
 325         float                                   scales, scalet, scale[3], translate[3], interval;
 326         qbyte                                   *datapointer, *startframes, *startskins;
 327         char                                    name[MAX_QPATH];
 328         skinframe_t                             tempskinframe;
 329         animscene_t                             *tempskinscenes;
 330         skinframe_t                             *tempskinframes;
 331         modelyawradius = 0;
 332         modelradius = 0;
 333
 334         datapointer = buffer;
 335         pinmodel = (mdl_t *)datapointer;
 336         datapointer += sizeof(mdl_t);
 337
 338         version = LittleLong (pinmodel->version);
 339         if (version != ALIAS_VERSION)
 340                 Host_Error ("%s has wrong version number (%i should be %i)",
 341                                  loadmodel->name, version, ALIAS_VERSION);
 342
 343         loadmodel->type = mod_alias;
 344         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 345         loadmodel->DrawSky = NULL;
 346         loadmodel->Draw = R_Model_Alias_Draw;
 347         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 348         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 349         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 350
 351         loadmodel->numskins = LittleLong(pinmodel->numskins);
 352         BOUNDI(loadmodel->numskins,0,256);
 353         skinwidth = LittleLong (pinmodel->skinwidth);
 354         BOUNDI(skinwidth,0,4096);
 355         skinheight = LittleLong (pinmodel->skinheight);
 356         BOUNDI(skinheight,0,4096);
 357         loadmodel->numverts = numverts = LittleLong(pinmodel->numverts);
 358         BOUNDI(loadmodel->numverts,0,MAXALIASVERTS);
 359         loadmodel->numtris = LittleLong(pinmodel->numtris);
 360         BOUNDI(loadmodel->numtris,0,MAXALIASTRIS);
 361         loadmodel->numframes = LittleLong(pinmodel->numframes);
 362         BOUNDI(loadmodel->numframes,0,65536);
 363         loadmodel->synctype = LittleLong (pinmodel->synctype);
 364         BOUNDI(loadmodel->synctype,0,2);
 365         loadmodel->flags = LittleLong (pinmodel->flags);
 366
 367         for (i = 0;i < 3;i++)
 368         {
 369                 scale[i] = LittleFloat (pinmodel->scale[i]);
 370                 translate[i] = LittleFloat (pinmodel->scale_origin[i]);
 371         }
 372
 373         startskins = datapointer;
 374         totalskins = 0;
 375         for (i = 0;i < loadmodel->numskins;i++)
 376         {
 377                 pinskintype = (daliasskintype_t *)datapointer;
 378                 datapointer += sizeof(daliasskintype_t);
 379                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 380                         groupskins = 1;
 381                 else
 382                 {
 383                         pinskingroup = (daliasskingroup_t *)datapointer;
 384                         datapointer += sizeof(daliasskingroup_t);
 385                         groupskins = LittleLong(pinskingroup->numskins);
 386                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 387                 }
 388
 389                 for (j = 0;j < groupskins;j++)
 390                 {
 391                         datapointer += skinwidth * skinheight;
 392                         totalskins++;
 393                 }
 394         }
 395
 396         pinstverts = (stvert_t *)datapointer;
 397         datapointer += sizeof(stvert_t) * numverts;
 398
 399         pintriangles = (dtriangle_t *)datapointer;
 400         datapointer += sizeof(dtriangle_t) * loadmodel->numtris;
 401
 402         startframes = datapointer;
 403         totalposes = 0;
 404         for (i = 0;i < loadmodel->numframes;i++)
 405         {
 406                 pinframetype = (daliasframetype_t *)datapointer;
 407                 datapointer += sizeof(daliasframetype_t);
 408                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 409                         groupframes = 1;
 410                 else
 411                 {
 412                         pinframegroup = (daliasgroup_t *)datapointer;
 413                         datapointer += sizeof(daliasgroup_t);
 414                         groupframes = LittleLong(pinframegroup->numframes);
 415                         datapointer += sizeof(daliasinterval_t) * groupframes;
 416                 }
 417
 418                 for (j = 0;j < groupframes;j++)
 419                 {
 420                         datapointer += sizeof(daliasframe_t);
 421                         datapointer += sizeof(trivertx_t) * numverts;
 422                         totalposes++;
 423                 }
 424         }
 425
 426         // load the skins
 427         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 428         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, totalskins * sizeof(skinframe_t));
 429         totalskins = 0;
 430         datapointer = startskins;
 431         for (i = 0;i < loadmodel->numskins;i++)
 432         {
 433                 pinskintype = (daliasskintype_t *)datapointer;
 434                 datapointer += sizeof(daliasskintype_t);
 435
 436                 if (pinskintype->type == ALIAS_SKIN_SINGLE)
 437                 {
 438                         groupskins = 1;
 439                         interval = 0.1f;
 440                 }
 441                 else
 442                 {
 443                         pinskingroup = (daliasskingroup_t *)datapointer;
 444                         datapointer += sizeof(daliasskingroup_t);
 445
 446                         groupskins = LittleLong (pinskingroup->numskins);
 447
 448                         pinskinintervals = (daliasskininterval_t *)datapointer;
 449                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 450
 451                         interval = LittleFloat(pinskinintervals[0].interval);
 452                         if (interval < 0.01f)
 453                                 Host_Error("Mod_LoadAliasModel: invalid interval\n");
 454                 }
 455
 456                 sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 457                 loadmodel->skinscenes[i].firstframe = totalskins;
 458                 loadmodel->skinscenes[i].framecount = groupskins;
 459                 loadmodel->skinscenes[i].framerate = 1.0f / interval;
 460                 loadmodel->skinscenes[i].loop = true;
 461
 462                 for (j = 0;j < groupskins;j++)
 463                 {
 464                         if (groupskins > 1)
 465                                 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 466                         else
 467                                 sprintf (name, "%s_%i", loadmodel->name, i);
 468                         if (!Mod_LoadExternalSkin(name, loadmodel->skinframes + totalskins, i == 0))
 469                                 Mod_LoadInternalSkin(name, (qbyte *)datapointer, skinwidth, skinheight, loadmodel->skinframes + totalskins, i == 0);
 470                         datapointer += skinwidth * skinheight;
 471                         totalskins++;
 472                 }
 473         }
 474         // check for skins that don't exist in the model, but do exist as external images
 475         // (this was added because yummyluv kept pestering me about support for it)
 476         for (;;)
 477         {
 478                 sprintf (name, "%s_%i", loadmodel->name, loadmodel->numskins);
 479                 if (Mod_LoadExternalSkin(name, &tempskinframe, loadmodel->numskins == 0))
 480                 {
 481                         // expand the arrays to make room
 482                         tempskinscenes = loadmodel->skinscenes;
 483                         tempskinframes = loadmodel->skinframes;
 484                         loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 485                         loadmodel->skinframes = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(skinframe_t));
 486                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 487                         memcpy(loadmodel->skinframes, tempskinframes, totalskins * sizeof(skinframe_t));
 488                         Mem_Free(tempskinscenes);
 489                         Mem_Free(tempskinframes);
 490                         // store the info about the new skin
 491                         strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
 492                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 493                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 494                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 495                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 496                         loadmodel->skinframes[totalskins] = tempskinframe;
 497                         loadmodel->numskins++;
 498                         totalskins++;
 499                 }
 500                 else
 501                         break;
 502         }
 503
 504         // store texture coordinates into temporary array, they will be stored after usage is determined (triangle data)
 505         scales = 1.0 / skinwidth;
 506         scalet = 1.0 / skinheight;
 507         for (i = 0;i < numverts;i++)
 508         {
 509                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 510                 vertst[i][0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 511                 vertst[i][1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 512                 vertst[i+numverts][0] = vertst[i][0] + 0.5;
 513                 vertst[i+numverts][1] = vertst[i][1];
 514                 vertusage[i] = 0;
 515                 vertusage[i+numverts] = 0;
 516         }
 517
 518 // load triangle data
 519         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->numtris);
 520
 521         // count the vertices used
 522         for (i = 0;i < numverts*2;i++)
 523                 vertusage[i] = 0;
 524         for (i = 0;i < loadmodel->numtris;i++)
 525         {
 526                 temptris[i][0] = LittleLong(pintriangles[i].vertindex[0]);
 527                 temptris[i][1] = LittleLong(pintriangles[i].vertindex[1]);
 528                 temptris[i][2] = LittleLong(pintriangles[i].vertindex[2]);
 529                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 530                 {
 531                         if (vertonseam[temptris[i][0]]) temptris[i][0] += numverts;
 532                         if (vertonseam[temptris[i][1]]) temptris[i][1] += numverts;
 533                         if (vertonseam[temptris[i][2]]) temptris[i][2] += numverts;
 534                 }
 535                 vertusage[temptris[i][0]]++;
 536                 vertusage[temptris[i][1]]++;
 537                 vertusage[temptris[i][2]]++;
 538         }
 539         // build remapping table and compact array
 540         totalverts = 0;
 541         for (i = 0;i < numverts*2;i++)
 542         {
 543                 if (vertusage[i])
 544                 {
 545                         vertremap[i] = totalverts;
 546                         vertst[totalverts][0] = vertst[i][0];
 547                         vertst[totalverts][1] = vertst[i][1];
 548                         totalverts++;
 549                 }
 550                 else
 551                         vertremap[i] = -1; // not used at all
 552         }
 553         loadmodel->numverts = totalverts;
 554         // remap the triangle references
 555         for (i = 0;i < loadmodel->numtris;i++)
 556         {
 557                 loadmodel->mdlmd2data_indices[i*3+0] = vertremap[temptris[i][0]];
 558                 loadmodel->mdlmd2data_indices[i*3+1] = vertremap[temptris[i][1]];
 559                 loadmodel->mdlmd2data_indices[i*3+2] = vertremap[temptris[i][2]];
 560         }
 561         // store the texture coordinates
 562         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, sizeof(float[4]) * totalverts);
 563         for (i = 0;i < totalverts;i++)
 564         {
 565                 loadmodel->mdlmd2data_texcoords[i*4+0] = vertst[i][0];
 566                 loadmodel->mdlmd2data_texcoords[i*4+1] = vertst[i][1];
 567         }
 568
 569 // load the frames
 570         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 571         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, sizeof(aliasvertex_t) * totalposes * totalverts);
 572
 573         // LordHavoc: doing proper bbox for model
 574         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 575         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 576
 577         Mod_MDL_LoadFrames (startframes, numverts, scale, translate);
 578
 579         modelyawradius = sqrt(modelyawradius);
 580         modelradius = sqrt(modelradius);
 581         for (j = 0;j < 3;j++)
 582         {
 583                 loadmodel->normalmins[j] = aliasbboxmin[j];
 584                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 585                 loadmodel->rotatedmins[j] = -modelradius;
 586                 loadmodel->rotatedmaxs[j] = modelradius;
 587         }
 588         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 589         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 590         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 591         loadmodel->radius = modelradius;
 592         loadmodel->radius2 = modelradius * modelradius;
 593
 594         Mod_BuildMDLMD2MeshInfo();
 595 }
 596
 597 static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, aliasvertex_t *out, int *vertremap)
 598 {
 599         int i;
 600         float dist;
 601         trivertx_t *in;
 602         vec3_t temp;
 603         for (i = 0;i < loadmodel->numverts;i++)
 604         {
 605                 in = v + vertremap[i];
 606                 temp[0] = in->v[0] * scale[0] + translate[0];
 607                 temp[1] = in->v[1] * scale[1] + translate[1];
 608                 temp[2] = in->v[2] * scale[2] + translate[2];
 609                 // update bounding box
 610                 if (temp[0] < aliasbboxmin[0]) aliasbboxmin[0] = temp[0];
 611                 if (temp[1] < aliasbboxmin[1]) aliasbboxmin[1] = temp[1];
 612                 if (temp[2] < aliasbboxmin[2]) aliasbboxmin[2] = temp[2];
 613                 if (temp[0] > aliasbboxmax[0]) aliasbboxmax[0] = temp[0];
 614                 if (temp[1] > aliasbboxmax[1]) aliasbboxmax[1] = temp[1];
 615                 if (temp[2] > aliasbboxmax[2]) aliasbboxmax[2] = temp[2];
 616                 dist = temp[0]*temp[0]+temp[1]*temp[1];
 617                 if (modelyawradius < dist)
 618                         modelyawradius = dist;
 619                 dist += temp[2]*temp[2];
 620                 if (modelradius < dist)
 621                         modelradius = dist;
 622                 VectorCopy(temp, out[i].origin);
 623         }
 624 }
 625
 626 void Mod_LoadQ2AliasModel (model_t *mod, void *buffer)
 627 {
 628         int *vertremap;
 629         md2_t *pinmodel;
 630         qbyte *base;
 631         int version, end;
 632         int i, j, k, hashindex, num, numxyz, numst, xyz, st;
 633         float *stverts, s, t, scale[3], translate[3];
 634         struct md2verthash_s
 635         {
 636                 struct md2verthash_s *next;
 637                 int xyz;
 638                 float st[2];
 639         }
 640         *hash, **md2verthash, *md2verthashdata;
 641         qbyte *datapointer;
 642         md2frame_t *pinframe;
 643         char *inskin;
 644         md2triangle_t *intri;
 645         unsigned short *inst;
 646         int skinwidth, skinheight;
 647         float *vertexbuffer, *svectorsbuffer, *tvectorsbuffer, *normalsbuffer;
 648
 649         pinmodel = buffer;
 650         base = buffer;
 651
 652         version = LittleLong (pinmodel->version);
 653         if (version != MD2ALIAS_VERSION)
 654                 Host_Error ("%s has wrong version number (%i should be %i)",
 655                         loadmodel->name, version, MD2ALIAS_VERSION);
 656
 657         loadmodel->type = mod_alias;
 658         loadmodel->aliastype = ALIASTYPE_MDLMD2;
 659         loadmodel->DrawSky = NULL;
 660         loadmodel->Draw = R_Model_Alias_Draw;
 661         loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
 662         loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
 663         loadmodel->DrawLight = R_Model_Alias_DrawLight;
 664
 665         if (LittleLong(pinmodel->num_tris < 1) || LittleLong(pinmodel->num_tris) > MD2MAX_TRIANGLES)
 666                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 667         if (LittleLong(pinmodel->num_xyz < 1) || LittleLong(pinmodel->num_xyz) > MD2MAX_VERTS)
 668                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 669         if (LittleLong(pinmodel->num_frames < 1) || LittleLong(pinmodel->num_frames) > MD2MAX_FRAMES)
 670                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 671         if (LittleLong(pinmodel->num_skins < 0) || LittleLong(pinmodel->num_skins) > MAX_SKINS)
 672                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 673
 674         end = LittleLong(pinmodel->ofs_end);
 675         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins <= 0) || LittleLong(pinmodel->ofs_skins) >= end))
 676                 Host_Error ("%s is not a valid model", loadmodel->name);
 677         if (LittleLong(pinmodel->ofs_st <= 0) || LittleLong(pinmodel->ofs_st) >= end)
 678                 Host_Error ("%s is not a valid model", loadmodel->name);
 679         if (LittleLong(pinmodel->ofs_tris <= 0) || LittleLong(pinmodel->ofs_tris) >= end)
 680                 Host_Error ("%s is not a valid model", loadmodel->name);
 681         if (LittleLong(pinmodel->ofs_frames <= 0) || LittleLong(pinmodel->ofs_frames) >= end)
 682                 Host_Error ("%s is not a valid model", loadmodel->name);
 683         if (LittleLong(pinmodel->ofs_glcmds <= 0) || LittleLong(pinmodel->ofs_glcmds) >= end)
 684                 Host_Error ("%s is not a valid model", loadmodel->name);
 685
 686         loadmodel->numskins = LittleLong(pinmodel->num_skins);
 687         numxyz = LittleLong(pinmodel->num_xyz);
 688         numst = LittleLong(pinmodel->num_st);
 689         loadmodel->numtris = LittleLong(pinmodel->num_tris);
 690         loadmodel->numframes = LittleLong(pinmodel->num_frames);
 691
 692         loadmodel->flags = 0; // there are no MD2 flags
 693         loadmodel->synctype = ST_RAND;
 694
 695         // load the skins
 696         inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
 697         if (loadmodel->numskins)
 698         {
 699                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins + sizeof(skinframe_t) * loadmodel->numskins);
 700                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + loadmodel->numskins);
 701                 for (i = 0;i < loadmodel->numskins;i++)
 702                 {
 703                         loadmodel->skinscenes[i].firstframe = i;
 704                         loadmodel->skinscenes[i].framecount = 1;
 705                         loadmodel->skinscenes[i].loop = true;
 706                         loadmodel->skinscenes[i].framerate = 10;
 707                         loadmodel->skinframes[i].base = loadtextureimagewithmaskandnmap (loadmodel->texturepool, inskin, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0), 1);
 708                         loadmodel->skinframes[i].fog = image_masktex;
 709                         loadmodel->skinframes[i].nmap = image_nmaptex;
 710                         loadmodel->skinframes[i].gloss = NULL;
 711                         loadmodel->skinframes[i].pants = NULL;
 712                         loadmodel->skinframes[i].shirt = NULL;
 713                         loadmodel->skinframes[i].glow = NULL;
 714                         loadmodel->skinframes[i].merged = NULL;
 715                         inskin += MD2MAX_SKINNAME;
 716                 }
 717         }
 718
 719         // load the triangles and stvert data
 720         inst = (void*)(base + LittleLong(pinmodel->ofs_st));
 721         intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
 722         skinwidth = LittleLong(pinmodel->skinwidth);
 723         skinheight = LittleLong(pinmodel->skinheight);
 724
 725         stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
 726         s = 1.0f / skinwidth;
 727         t = 1.0f / skinheight;
 728         for (i = 0;i < numst;i++)
 729         {
 730                 j = (unsigned short) LittleShort(inst[i*2+0]);
 731                 k = (unsigned short) LittleShort(inst[i*2+1]);
 732                 if (j >= skinwidth || k >= skinheight)
 733                 {
 734                         Mem_Free(stverts);
 735                         Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
 736                 }
 737                 stverts[i*2+0] = j * s;
 738                 stverts[i*2+1] = k * t;
 739         }
 740
 741         md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
 742         md2verthashdata = Mem_Alloc(tempmempool, loadmodel->numtris * 3 * sizeof(*hash));
 743         // swap the triangle list
 744         num = 0;
 745         loadmodel->mdlmd2data_indices = Mem_Alloc(loadmodel->mempool, loadmodel->numtris * sizeof(int[3]));
 746         for (i = 0;i < loadmodel->numtris;i++)
 747         {
 748                 for (j = 0;j < 3;j++)
 749                 {
 750                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 751                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
 752                         if (xyz >= numxyz || st >= numst)
 753                         {
 754                                 Mem_Free(md2verthash);
 755                                 Mem_Free(md2verthashdata);
 756                                 Mem_Free(stverts);
 757                                 if (xyz >= numxyz)
 758                                         Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
 759                                 if (st >= numst)
 760                                         Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
 761                         }
 762                         s = stverts[st*2+0];
 763                         t = stverts[st*2+1];
 764                         hashindex = (xyz * 17 + st) & 255;
 765                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
 766                                 if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
 767                                         break;
 768                         if (hash == NULL)
 769                         {
 770                                 hash = md2verthashdata + num++;
 771                                 hash->xyz = xyz;
 772                                 hash->st[0] = s;
 773                                 hash->st[1] = t;
 774                                 hash->next = md2verthash[hashindex];
 775                                 md2verthash[hashindex] = hash;
 776                         }
 777                         loadmodel->mdlmd2data_indices[i*3+j] = (hash - md2verthashdata);
 778                 }
 779         }
 780
 781         Mem_Free(stverts);
 782
 783         loadmodel->numverts = num;
 784         vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
 785         loadmodel->mdlmd2data_texcoords = Mem_Alloc(loadmodel->mempool, num * sizeof(float[4]));
 786         for (i = 0;i < num;i++)
 787         {
 788                 hash = md2verthashdata + i;
 789                 vertremap[i] = hash->xyz;
 790                 loadmodel->mdlmd2data_texcoords[i*4+0] = hash->st[0];
 791                 loadmodel->mdlmd2data_texcoords[i*4+1] = hash->st[1];
 792         }
 793
 794         Mem_Free(md2verthash);
 795         Mem_Free(md2verthashdata);
 796
 797         // load frames
 798         // LordHavoc: doing proper bbox for model
 799         aliasbboxmin[0] = aliasbboxmin[1] = aliasbboxmin[2] = 1000000000;
 800         aliasbboxmax[0] = aliasbboxmax[1] = aliasbboxmax[2] = -1000000000;
 801         modelyawradius = 0;
 802         modelradius = 0;
 803
 804         datapointer = (base + LittleLong(pinmodel->ofs_frames));
 805         // load the frames
 806         loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
 807         loadmodel->mdlmd2data_pose = Mem_Alloc(loadmodel->mempool, loadmodel->numverts * loadmodel->numframes * sizeof(trivertx_t));
 808
 809         vertexbuffer = Mem_Alloc(tempmempool, loadmodel->numverts * sizeof(float[4]) * 4);
 810         svectorsbuffer = vertexbuffer + loadmodel->numverts * 4;
 811         tvectorsbuffer = svectorsbuffer + loadmodel->numverts * 4;
 812         normalsbuffer = tvectorsbuffer + loadmodel->numverts * 4;
 813         for (i = 0;i < loadmodel->numframes;i++)
 814         {
 815                 pinframe = (md2frame_t *)datapointer;
 816                 datapointer += sizeof(md2frame_t);
 817                 for (j = 0;j < 3;j++)
 818                 {
 819                         scale[j] = LittleFloat(pinframe->scale[j]);
 820                         translate[j] = LittleFloat(pinframe->translate[j]);
 821                 }
 822                 Mod_MD2_ConvertVerts(scale, translate, (void *)datapointer, loadmodel->mdlmd2data_pose + i * loadmodel->numverts, vertremap);
 823                 Mod_BuildAliasVertexTextureVectors(loadmodel->numtris, loadmodel->mdlmd2data_indices, loadmodel->numverts, loadmodel->mdlmd2data_pose + i * loadmodel->numverts, loadmodel->mdlmd2data_texcoords, vertexbuffer, svectorsbuffer, tvectorsbuffer, normalsbuffer);
 824                 datapointer += numxyz * sizeof(trivertx_t);
 825
 826                 strcpy(loadmodel->animscenes[i].name, pinframe->name);
 827                 loadmodel->animscenes[i].firstframe = i;
 828                 loadmodel->animscenes[i].framecount = 1;
 829                 loadmodel->animscenes[i].framerate = 10;
 830                 loadmodel->animscenes[i].loop = true;
 831         }
 832         Mem_Free(vertexbuffer);
 833
 834         Mem_Free(vertremap);
 835
 836         // LordHavoc: model bbox
 837         modelyawradius = sqrt(modelyawradius);
 838         modelradius = sqrt(modelradius);
 839         for (j = 0;j < 3;j++)
 840         {
 841                 loadmodel->normalmins[j] = aliasbboxmin[j];
 842                 loadmodel->normalmaxs[j] = aliasbboxmax[j];
 843                 loadmodel->rotatedmins[j] = -modelradius;
 844                 loadmodel->rotatedmaxs[j] = modelradius;
 845         }
 846         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -(loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius);
 847         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 848         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 849         loadmodel->radius = modelradius;
 850         loadmodel->radius2 = modelradius * modelradius;
 851
 852         Mod_BuildMDLMD2MeshInfo();
 853 }
 854
 855 extern void R_Model_Zymotic_DrawSky(entity_render_t *ent);
 856 extern void R_Model_Zymotic_Draw(entity_render_t *ent);
 857 extern void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent);
 858 extern void R_Model_Zymotic_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
 859 extern void R_Model_Zymotic_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor);
 860 void Mod_LoadZymoticModel(model_t *mod, void *buffer)
 861 {
 862         zymtype1header_t *pinmodel, *pheader;
 863         qbyte *pbase;
 864
 865         pinmodel = (void *)buffer;
 866         pbase = buffer;
 867         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
 868                 Host_Error ("Mod_LoadZymoticModel: %s is not a zymotic model\n");
 869         if (BigLong(pinmodel->type) != 1)
 870                 Host_Error ("Mod_LoadZymoticModel: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
 871
 872         loadmodel->type = mod_alias;
 873         loadmodel->aliastype = ALIASTYPE_ZYM;
 874         loadmodel->DrawSky = NULL;
 875         loadmodel->Draw = R_Model_Zymotic_Draw;
 876         loadmodel->DrawFakeShadow = NULL;//R_Model_Zymotic_DrawFakeShadow;
 877         loadmodel->DrawShadowVolume = NULL;//R_Model_Zymotic_DrawShadowVolume;
 878         loadmodel->DrawLight = NULL;//R_Model_Zymotic_DrawLight;
 879
 880         // byteswap header
 881         pheader = pinmodel;
 882         pheader->type = BigLong(pinmodel->type);
 883         pheader->filesize = BigLong(pinmodel->filesize);
 884         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
 885         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
 886         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
 887         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
 888         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
 889         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
 890         pheader->radius = BigFloat(pinmodel->radius);
 891         pheader->numverts = loadmodel->zymnum_verts = BigLong(pinmodel->numverts);
 892         pheader->numtris = loadmodel->zymnum_tris = BigLong(pinmodel->numtris);
 893         pheader->numshaders = loadmodel->zymnum_shaders = BigLong(pinmodel->numshaders);
 894         pheader->numbones = loadmodel->zymnum_bones = BigLong(pinmodel->numbones);
 895         pheader->numscenes = loadmodel->zymnum_scenes = BigLong(pinmodel->numscenes);
 896         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
 897         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
 898         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
 899         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
 900         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
 901         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
 902         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
 903         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
 904         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
 905         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
 906         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
 907         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
 908         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
 909         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
 910         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
 911         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
 912         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
 913         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
 914
 915         loadmodel->flags = 0; // there are no flags
 916         loadmodel->numframes = pheader->numscenes;
 917         loadmodel->synctype = ST_SYNC;
 918         loadmodel->numtris = pheader->numtris;
 919         loadmodel->numverts = 0;
 920
 921         {
 922                 unsigned int i;
 923                 float modelradius, corner[2];
 924                 // model bbox
 925                 modelradius = pheader->radius;
 926                 for (i = 0;i < 3;i++)
 927                 {
 928                         loadmodel->normalmins[i] = pheader->mins[i];
 929                         loadmodel->normalmaxs[i] = pheader->maxs[i];
 930                         loadmodel->rotatedmins[i] = -modelradius;
 931                         loadmodel->rotatedmaxs[i] = modelradius;
 932                 }
 933                 corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
 934                 corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
 935                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
 936                 if (loadmodel->yawmaxs[0] > modelradius)
 937                         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
 938                 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
 939                 loadmodel->yawmins[2] = loadmodel->normalmins[2];
 940                 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 941                 loadmodel->radius = modelradius;
 942                 loadmodel->radius2 = modelradius * modelradius;
 943         }
 944
 945         {
 946                 // FIXME: add shaders, and make them switchable shader sets and...
 947                 loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) + sizeof(skinframe_t));
 948                 loadmodel->skinscenes[0].firstframe = 0;
 949                 loadmodel->skinscenes[0].framecount = 1;
 950                 loadmodel->skinscenes[0].loop = true;
 951                 loadmodel->skinscenes[0].framerate = 10;
 952                 loadmodel->skinframes = (void *)(loadmodel->skinscenes + 1);
 953                 loadmodel->skinframes->base = NULL;
 954                 loadmodel->skinframes->fog = NULL;
 955                 loadmodel->skinframes->pants = NULL;
 956                 loadmodel->skinframes->shirt = NULL;
 957                 loadmodel->skinframes->glow = NULL;
 958                 loadmodel->skinframes->merged = NULL;
 959                 loadmodel->numskins = 1;
 960         }
 961
 962         // go through the lumps, swapping things
 963
 964         {
 965                 int i, numposes;
 966                 zymscene_t *scene;
 967         //      zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
 968                 loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 969                 scene = (void *) (pheader->lump_scenes.start + pbase);
 970                 numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
 971                 for (i = 0;i < pheader->numscenes;i++)
 972                 {
 973                         memcpy(loadmodel->animscenes[i].name, scene->name, 32);
 974                         loadmodel->animscenes[i].firstframe = BigLong(scene->start);
 975                         loadmodel->animscenes[i].framecount = BigLong(scene->length);
 976                         loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
 977                         loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
 978                         if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
 979                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
 980                         if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
 981                                 Host_Error("Mod_LoadZymoticModel: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
 982                         if (loadmodel->animscenes[i].framerate < 0)
 983                                 Host_Error("Mod_LoadZymoticModel: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
 984                         scene++;
 985                 }
 986         }
 987
 988         {
 989                 int i;
 990                 float *poses;
 991         //      zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
 992                 loadmodel->zymdata_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
 993                 poses = (void *) (pheader->lump_poses.start + pbase);
 994                 for (i = 0;i < pheader->lump_poses.length / 4;i++)
 995                         loadmodel->zymdata_poses[i] = BigFloat(poses[i]);
 996         }
 997
 998         {
 999                 int i;
1000                 zymbone_t *bone;
1001         //      zymlump_t lump_bones; // zymbone_t bone[numbones];
1002                 loadmodel->zymdata_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(zymbone_t));
1003                 bone = (void *) (pheader->lump_bones.start + pbase);
1004                 for (i = 0;i < pheader->numbones;i++)
1005                 {
1006                         memcpy(loadmodel->zymdata_bones[i].name, bone[i].name, sizeof(bone[i].name));
1007                         loadmodel->zymdata_bones[i].flags = BigLong(bone[i].flags);
1008                         loadmodel->zymdata_bones[i].parent = BigLong(bone[i].parent);
1009                         if (loadmodel->zymdata_bones[i].parent >= i)
1010                                 Host_Error("Mod_LoadZymoticModel: bone[%i].parent >= %i in %s\n", i, i, loadmodel->name);
1011                 }
1012         }
1013
1014         {
1015                 int i, *bonecount;
1016         //      zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
1017                 loadmodel->zymdata_vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1018                 bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
1019                 for (i = 0;i < pheader->numverts;i++)
1020                 {
1021                         loadmodel->zymdata_vertbonecounts[i] = BigLong(bonecount[i]);
1022                         if (loadmodel->zymdata_vertbonecounts[i] < 1)
1023                                 Host_Error("Mod_LoadZymoticModel: bone vertex count < 1 in %s\n", loadmodel->name);
1024                 }
1025         }
1026
1027         {
1028                 int i;
1029                 zymvertex_t *vertdata;
1030         //      zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
1031                 loadmodel->zymdata_verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
1032                 vertdata = (void *) (pheader->lump_verts.start + pbase);
1033                 for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
1034                 {
1035                         loadmodel->zymdata_verts[i].bonenum = BigLong(vertdata[i].bonenum);
1036                         loadmodel->zymdata_verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
1037                         loadmodel->zymdata_verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
1038                         loadmodel->zymdata_verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
1039                 }
1040         }
1041
1042         {
1043                 int i;
1044                 float *intexcoord, *outtexcoord;
1045         //      zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1046                 loadmodel->zymdata_texcoords = outtexcoord = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[4]));
1047                 intexcoord = (void *) (pheader->lump_texcoords.start + pbase);
1048                 for (i = 0;i < pheader->numverts;i++)
1049                 {
1050                         outtexcoord[i*4+0] = BigFloat(intexcoord[i*2+0]);
1051                         // flip T coordinate for OpenGL
1052                         outtexcoord[i*4+1] = 1 - BigFloat(intexcoord[i*2+1]);
1053                 }
1054         }
1055
1056         {
1057                 int i, count, *renderlist, *renderlistend, *outrenderlist;
1058         //      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)
1059                 loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, pheader->lump_render.length);
1060                 // byteswap, validate, and swap winding order of tris
1061                 count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1062                 if (pheader->lump_render.length != count)
1063                         Host_Error("Mod_LoadZymoticModel: renderlist is wrong size in %s (is %i bytes, should be %i bytes)\n", loadmodel->name, pheader->lump_render.length, count);
1064                 outrenderlist = loadmodel->zymdata_renderlist = Mem_Alloc(loadmodel->mempool, count);
1065                 renderlist = (void *) (pheader->lump_render.start + pbase);
1066                 renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
1067                 for (i = 0;i < pheader->numshaders;i++)
1068                 {
1069                         if (renderlist >= renderlistend)
1070                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1071                         count = BigLong(*renderlist);renderlist++;
1072                         if (renderlist + count * 3 > renderlistend)
1073                                 Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
1074                         *outrenderlist++ = count;
1075                         while (count--)
1076                         {
1077                                 outrenderlist[2] = BigLong(renderlist[0]);
1078                                 outrenderlist[1] = BigLong(renderlist[1]);
1079                                 outrenderlist[0] = BigLong(renderlist[2]);
1080                                 if ((unsigned int)outrenderlist[0] >= (unsigned int)pheader->numverts
1081                                  || (unsigned int)outrenderlist[1] >= (unsigned int)pheader->numverts
1082                                  || (unsigned int)outrenderlist[2] >= (unsigned int)pheader->numverts)
1083                                         Host_Error("Mod_LoadZymoticModel: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
1084                                 renderlist += 3;
1085                                 outrenderlist += 3;
1086                         }
1087                 }
1088         }
1089
1090         {
1091                 int i;
1092                 char *shadername;
1093         //      zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1094                 loadmodel->zymdata_textures = Mem_Alloc(loadmodel->mempool, pheader->numshaders * sizeof(rtexture_t *));
1095                 shadername = (void *) (pheader->lump_shaders.start + pbase);
1096                 for (i = 0;i < pheader->numshaders;i++)
1097                         loadmodel->zymdata_textures[i] = loadtextureimage(loadmodel->texturepool, shadername + i * 32, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0));
1098         }
1099
1100         {
1101         //      zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1102                 loadmodel->zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1103                 memcpy(loadmodel->zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1104         }
1105 }