model_sprite.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 // models.c -- model loading and caching
  21
  22 // models are the only shared resource between a client and server running
  23 // on the same machine.
  24
  25 #include "quakedef.h"
  26 #include "image.h"
  27
  28 cvar_t r_mipsprites = {CF_CLIENT | CF_ARCHIVE, "r_mipsprites", "1", "mipmaps sprites so they render faster in the distance and do not display noise artifacts"};
  29 cvar_t r_labelsprites_scale = {CF_CLIENT | CF_ARCHIVE, "r_labelsprites_scale", "1", "global scale to apply to label sprites before conversion to HUD coordinates"};
  30 cvar_t r_labelsprites_roundtopixels = {CF_CLIENT | CF_ARCHIVE, "r_labelsprites_roundtopixels", "1", "try to make label sprites sharper by rounding their size to 0.5x or 1x and by rounding their position to whole pixels if possible"};
  31 cvar_t r_overheadsprites_perspective = {CF_CLIENT | CF_ARCHIVE, "r_overheadsprites_perspective", "5", "fake perspective effect for SPR_OVERHEAD sprites"};
  32 cvar_t r_overheadsprites_pushback = {CF_CLIENT | CF_ARCHIVE, "r_overheadsprites_pushback", "15", "how far to pull the SPR_OVERHEAD sprites toward the eye (used to avoid intersections with 3D models)"};
  33 cvar_t r_overheadsprites_scalex = {CF_CLIENT | CF_ARCHIVE, "r_overheadsprites_scalex", "1", "additional scale for overhead sprites for x axis"};
  34 cvar_t r_overheadsprites_scaley = {CF_CLIENT | CF_ARCHIVE, "r_overheadsprites_scaley", "1", "additional scale for overhead sprites for y axis"};
  35 cvar_t r_track_sprites = {CF_CLIENT | CF_ARCHIVE, "r_track_sprites", "1", "track SPR_LABEL* sprites by putting them as indicator at the screen border to rotate to"};
  36 cvar_t r_track_sprites_flags = {CF_CLIENT | CF_ARCHIVE, "r_track_sprites_flags", "1", "1: Rotate sprites accordingly, 2: Make it a continuous rotation"};
  37 cvar_t r_track_sprites_scalew = {CF_CLIENT | CF_ARCHIVE, "r_track_sprites_scalew", "1", "width scaling of tracked sprites"};
  38 cvar_t r_track_sprites_scaleh = {CF_CLIENT | CF_ARCHIVE, "r_track_sprites_scaleh", "1", "height scaling of tracked sprites"};
  39
  40 /*
  41 ===============
  42 Mod_SpriteInit
  43 ===============
  44 */
  45 void Mod_SpriteInit (void)
  46 {
  47         Cvar_RegisterVariable(&r_mipsprites);
  48         Cvar_RegisterVariable(&r_labelsprites_scale);
  49         Cvar_RegisterVariable(&r_labelsprites_roundtopixels);
  50         Cvar_RegisterVariable(&r_overheadsprites_perspective);
  51         Cvar_RegisterVariable(&r_overheadsprites_pushback);
  52         Cvar_RegisterVariable(&r_overheadsprites_scalex);
  53         Cvar_RegisterVariable(&r_overheadsprites_scaley);
  54         Cvar_RegisterVariable(&r_track_sprites);
  55         Cvar_RegisterVariable(&r_track_sprites_flags);
  56         Cvar_RegisterVariable(&r_track_sprites_scalew);
  57         Cvar_RegisterVariable(&r_track_sprites_scaleh);
  58 }
  59
  60 static void Mod_SpriteSetupTexture(texture_t *texture, skinframe_t *skinframe, qbool fullbright, qbool additive)
  61 {
  62         if (!skinframe)
  63                 skinframe = R_SkinFrame_LoadMissing();
  64         texture->offsetmapping = OFFSETMAPPING_OFF;
  65         texture->offsetscale = 1;
  66         texture->offsetbias = 0;
  67         texture->specularscalemod = 1;
  68         texture->specularpowermod = 1;
  69         texture->basematerialflags = MATERIALFLAG_WALL;
  70         texture->basealpha = 1.0f;
  71         if (fullbright)
  72                 texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
  73         if (additive)
  74                 texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
  75         else if (skinframe->hasalpha)
  76                 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
  77         texture->currentmaterialflags = texture->basematerialflags;
  78         texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(loadmodel->mempool, skinframe);
  79         texture->currentskinframe = skinframe;
  80         texture->surfaceflags = 0;
  81         texture->supercontents = SUPERCONTENTS_SOLID;
  82         if (!(texture->basematerialflags & MATERIALFLAG_BLENDED))
  83                 texture->supercontents |= SUPERCONTENTS_OPAQUE;
  84         texture->transparentsort = TRANSPARENTSORT_DISTANCE;
  85         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
  86         // JUST GREP FOR "specularscalemod = 1".
  87 }
  88
  89 extern cvar_t gl_texturecompression_sprites;
  90
  91 static void Mod_Sprite_SharedSetup(const unsigned char *datapointer, int version, const unsigned int *palette, qbool additive)
  92 {
  93         int                                     i, j, groupframes, realframes, x, y, origin[2], width, height;
  94         qbool                   fullbright;
  95         dspriteframetype_t      *pinframetype;
  96         dspriteframe_t          *pinframe;
  97         dspritegroup_t          *pingroup;
  98         dspriteinterval_t       *pinintervals;
  99         skinframe_t                     *skinframe;
 100         float                           modelradius, interval;
 101         char                            name[MAX_QPATH], fogname[MAX_QPATH];
 102         const void                      *startframes;
 103         int                 texflags = (r_mipsprites.integer ? TEXF_MIPMAP : 0) | ((gl_texturecompression.integer && gl_texturecompression_sprites.integer) ? TEXF_COMPRESS : 0) | TEXF_ISSPRITE | TEXF_PICMIP | TEXF_ALPHA | TEXF_CLAMP;
 104         modelradius = 0;
 105
 106         if (loadmodel->numframes < 1)
 107                 Host_Error ("Mod_Sprite_SharedSetup: Invalid # of frames: %d", loadmodel->numframes);
 108
 109         // LadyHavoc: hack to allow sprites to be non-fullbright
 110         fullbright = true;
 111         for (i = 0;i < MAX_QPATH && loadmodel->name[i];i++)
 112                 if (loadmodel->name[i] == '!')
 113                         fullbright = false;
 114
 115 //
 116 // load the frames
 117 //
 118         startframes = datapointer;
 119         realframes = 0;
 120         for (i = 0;i < loadmodel->numframes;i++)
 121         {
 122                 pinframetype = (dspriteframetype_t *)datapointer;
 123                 datapointer += sizeof(dspriteframetype_t);
 124
 125                 if (LittleLong (pinframetype->type) == SPR_SINGLE)
 126                         groupframes = 1;
 127                 else
 128                 {
 129                         pingroup = (dspritegroup_t *)datapointer;
 130                         datapointer += sizeof(dspritegroup_t);
 131
 132                         groupframes = LittleLong(pingroup->numframes);
 133
 134                         datapointer += sizeof(dspriteinterval_t) * groupframes;
 135                 }
 136
 137                 for (j = 0;j < groupframes;j++)
 138                 {
 139                         pinframe = (dspriteframe_t *)datapointer;
 140                         if (version == SPRITE32_VERSION)
 141                                 datapointer += sizeof(dspriteframe_t) + LittleLong(pinframe->width) * LittleLong(pinframe->height) * 4;
 142                         else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
 143                                 datapointer += sizeof(dspriteframe_t) + LittleLong(pinframe->width) * LittleLong(pinframe->height);
 144                 }
 145                 realframes += groupframes;
 146         }
 147
 148         loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 149         loadmodel->sprite.sprdata_frames = (mspriteframe_t *)Mem_Alloc(loadmodel->mempool, sizeof(mspriteframe_t) * realframes);
 150         loadmodel->num_textures = realframes;
 151         loadmodel->num_texturesperskin = 1;
 152         loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, sizeof(texture_t) * loadmodel->num_textures);
 153
 154         datapointer = (unsigned char *)startframes;
 155         realframes = 0;
 156         for (i = 0;i < loadmodel->numframes;i++)
 157         {
 158                 pinframetype = (dspriteframetype_t *)datapointer;
 159                 datapointer += sizeof(dspriteframetype_t);
 160
 161                 if (LittleLong (pinframetype->type) == SPR_SINGLE)
 162                 {
 163                         groupframes = 1;
 164                         interval = 0.1f;
 165                 }
 166                 else
 167                 {
 168                         pingroup = (dspritegroup_t *)datapointer;
 169                         datapointer += sizeof(dspritegroup_t);
 170
 171                         groupframes = LittleLong(pingroup->numframes);
 172
 173                         pinintervals = (dspriteinterval_t *)datapointer;
 174                         datapointer += sizeof(dspriteinterval_t) * groupframes;
 175
 176                         interval = LittleFloat(pinintervals[0].interval);
 177                         if (interval < 0.01f)
 178                                 Host_Error("Mod_Sprite_SharedSetup: invalid interval");
 179                 }
 180
 181                 dpsnprintf(loadmodel->animscenes[i].name, sizeof(loadmodel->animscenes[i].name), "frame %i", i);
 182                 loadmodel->animscenes[i].firstframe = realframes;
 183                 loadmodel->animscenes[i].framecount = groupframes;
 184                 loadmodel->animscenes[i].framerate = 1.0f / interval;
 185                 loadmodel->animscenes[i].loop = true;
 186
 187                 for (j = 0;j < groupframes;j++)
 188                 {
 189                         pinframe = (dspriteframe_t *)datapointer;
 190                         datapointer += sizeof(dspriteframe_t);
 191
 192                         origin[0] = LittleLong (pinframe->origin[0]);
 193                         origin[1] = LittleLong (pinframe->origin[1]);
 194                         width = LittleLong (pinframe->width);
 195                         height = LittleLong (pinframe->height);
 196
 197                         loadmodel->sprite.sprdata_frames[realframes].left = origin[0];
 198                         loadmodel->sprite.sprdata_frames[realframes].right = origin[0] + width;
 199                         loadmodel->sprite.sprdata_frames[realframes].up = origin[1];
 200                         loadmodel->sprite.sprdata_frames[realframes].down = origin[1] - height;
 201
 202                         x = (int)max(loadmodel->sprite.sprdata_frames[realframes].left * loadmodel->sprite.sprdata_frames[realframes].left, loadmodel->sprite.sprdata_frames[realframes].right * loadmodel->sprite.sprdata_frames[realframes].right);
 203                         y = (int)max(loadmodel->sprite.sprdata_frames[realframes].up * loadmodel->sprite.sprdata_frames[realframes].up, loadmodel->sprite.sprdata_frames[realframes].down * loadmodel->sprite.sprdata_frames[realframes].down);
 204                         if (modelradius < x + y)
 205                                 modelradius = x + y;
 206
 207                         if (cls.state != ca_dedicated)
 208                         {
 209                                 skinframe = NULL;
 210                                 // note: Nehahra's null.spr has width == 0 and height == 0
 211                                 if (width > 0 && height > 0)
 212                                 {
 213                                         if (groupframes > 1)
 214                                         {
 215                                                 dpsnprintf (name, sizeof(name), "%s_%i_%i", loadmodel->name, i, j);
 216                                                 dpsnprintf (fogname, sizeof(fogname), "%s_%i_%ifog", loadmodel->name, i, j);
 217                                         }
 218                                         else
 219                                         {
 220                                                 dpsnprintf (name, sizeof(name), "%s_%i", loadmodel->name, i);
 221                                                 dpsnprintf (fogname, sizeof(fogname), "%s_%ifog", loadmodel->name, i);
 222                                         }
 223                                         if (!(skinframe = R_SkinFrame_LoadExternal(name, texflags | TEXF_COMPRESS, false, false)))
 224                                         {
 225                                                 unsigned char *pixels = (unsigned char *) Mem_Alloc(loadmodel->mempool, width*height*4);
 226                                                 if (version == SPRITE32_VERSION)
 227                                                 {
 228                                                         for (x = 0;x < width*height;x++)
 229                                                         {
 230                                                                 pixels[x*4+2] = datapointer[x*4+0];
 231                                                                 pixels[x*4+1] = datapointer[x*4+1];
 232                                                                 pixels[x*4+0] = datapointer[x*4+2];
 233                                                                 pixels[x*4+3] = datapointer[x*4+3];
 234                                                         }
 235                                                 }
 236                                                 else //if (version == SPRITEHL_VERSION || version == SPRITE_VERSION)
 237                                                         Image_Copy8bitBGRA(datapointer, pixels, width*height, palette ? palette : palette_bgra_transparent);
 238                                                 skinframe = R_SkinFrame_LoadInternalBGRA(name, texflags, pixels, width, height, 0, 0, 0, false);
 239                                                 // texflags |= TEXF_COMPRESS;
 240                                                 Mem_Free(pixels);
 241                                         }
 242                                 }
 243                                 if (skinframe == NULL)
 244                                         skinframe = R_SkinFrame_LoadMissing();
 245                                 Mod_SpriteSetupTexture(&loadmodel->data_textures[realframes], skinframe, fullbright, additive);
 246                         }
 247
 248                         if (version == SPRITE32_VERSION)
 249                                 datapointer += width * height * 4;
 250                         else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
 251                                 datapointer += width * height;
 252                         realframes++;
 253                 }
 254         }
 255
 256         modelradius = sqrt(modelradius);
 257         for (i = 0;i < 3;i++)
 258         {
 259                 loadmodel->normalmins[i] = loadmodel->yawmins[i] = loadmodel->rotatedmins[i] = -modelradius;
 260                 loadmodel->normalmaxs[i] = loadmodel->yawmaxs[i] = loadmodel->rotatedmaxs[i] = modelradius;
 261         }
 262         loadmodel->radius = modelradius;
 263         loadmodel->radius2 = modelradius * modelradius;
 264 }
 265
 266 void Mod_IDSP_Load(model_t *mod, void *buffer, void *bufferend)
 267 {
 268         int version;
 269         const unsigned char *datapointer;
 270
 271         datapointer = (unsigned char *)buffer;
 272
 273         loadmodel->modeldatatypestring = "SPR1";
 274
 275         loadmodel->type = mod_sprite;
 276
 277         loadmodel->DrawSky = NULL;
 278         loadmodel->Draw = R_Model_Sprite_Draw;
 279         loadmodel->DrawDepth = NULL;
 280         loadmodel->DrawLight = NULL;
 281         loadmodel->DrawAddWaterPlanes = NULL;
 282
 283         version = LittleLong(((dsprite_t *)buffer)->version);
 284         if (version == SPRITE_VERSION || version == SPRITE32_VERSION)
 285         {
 286                 dsprite_t *pinqsprite;
 287
 288                 pinqsprite = (dsprite_t *)datapointer;
 289                 datapointer += sizeof(dsprite_t);
 290
 291                 loadmodel->numframes = LittleLong (pinqsprite->numframes);
 292                 loadmodel->sprite.sprnum_type = LittleLong (pinqsprite->type);
 293                 loadmodel->synctype = (synctype_t)LittleLong (pinqsprite->synctype);
 294
 295                 Mod_Sprite_SharedSetup(datapointer, LittleLong (pinqsprite->version), NULL, false);
 296         }
 297         else if (version == SPRITEHL_VERSION)
 298         {
 299                 int i, rendermode;
 300                 unsigned char palette[256][4];
 301                 const unsigned char *in;
 302                 dspritehl_t *pinhlsprite;
 303
 304                 pinhlsprite = (dspritehl_t *)datapointer;
 305                 datapointer += sizeof(dspritehl_t);
 306
 307                 loadmodel->numframes = LittleLong (pinhlsprite->numframes);
 308                 loadmodel->sprite.sprnum_type = LittleLong (pinhlsprite->type);
 309                 loadmodel->synctype = (synctype_t)LittleLong (pinhlsprite->synctype);
 310                 rendermode = pinhlsprite->rendermode;
 311
 312                 in = datapointer;
 313                 datapointer += 2;
 314                 i = in[0] + in[1] * 256;
 315                 if (i != 256)
 316                         Host_Error ("Mod_IDSP_Load: unexpected number of palette colors %i (should be 256)", i);
 317                 in = datapointer;
 318                 datapointer += 768;
 319                 switch(rendermode)
 320                 {
 321                 case SPRHL_OPAQUE:
 322                         for (i = 0;i < 256;i++)
 323                         {
 324                                 palette[i][2] = in[i*3+0];
 325                                 palette[i][1] = in[i*3+1];
 326                                 palette[i][0] = in[i*3+2];
 327                                 palette[i][3] = 255;
 328                         }
 329                         break;
 330                 case SPRHL_ADDITIVE:
 331                         for (i = 0;i < 256;i++)
 332                         {
 333                                 palette[i][2] = in[i*3+0];
 334                                 palette[i][1] = in[i*3+1];
 335                                 palette[i][0] = in[i*3+2];
 336                                 palette[i][3] = 255;
 337                         }
 338                         // also passes additive == true to Mod_Sprite_SharedSetup
 339                         break;
 340                 case SPRHL_INDEXALPHA:
 341                         for (i = 0;i < 256;i++)
 342                         {
 343                                 palette[i][2] = in[765];
 344                                 palette[i][1] = in[766];
 345                                 palette[i][0] = in[767];
 346                                 palette[i][3] = i;
 347                                 in += 3;
 348                         }
 349                         break;
 350                 case SPRHL_ALPHATEST:
 351                         for (i = 0;i < 256;i++)
 352                         {
 353                                 palette[i][2] = in[i*3+0];
 354                                 palette[i][1] = in[i*3+1];
 355                                 palette[i][0] = in[i*3+2];
 356                                 palette[i][3] = 255;
 357                         }
 358                         palette[255][0] = palette[255][1] = palette[255][2] = palette[255][3] = 0;
 359                         // should this use alpha test or alpha blend?  (currently blend)
 360                         break;
 361                 default:
 362                         Host_Error("Mod_IDSP_Load: unknown texFormat (%i, should be 0, 1, 2, or 3)", i);
 363                         return;
 364                 }
 365
 366                 Mod_Sprite_SharedSetup(datapointer, LittleLong (pinhlsprite->version), (unsigned int *)(&palette[0][0]), rendermode == SPRHL_ADDITIVE);
 367         }
 368         else
 369                 Host_Error("Mod_IDSP_Load: %s has wrong version number (%i). Only %i (quake), %i (HalfLife), and %i (sprite32) supported",
 370                                         loadmodel->name, version, SPRITE_VERSION, SPRITEHL_VERSION, SPRITE32_VERSION);
 371
 372         // TODO: Note that isanimated only means whether vertices change due to
 373         // the animation. This may happen due to sprframe parameters changing.
 374         // Mere texture chanegs OTOH shouldn't require isanimated to be 1.
 375         loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || (loadmodel->animscenes && loadmodel->animscenes[0].framecount > 1);
 376 }
 377
 378
 379 void Mod_IDS2_Load(model_t *mod, void *buffer, void *bufferend)
 380 {
 381         int i, version;
 382         qbool fullbright;
 383         const dsprite2_t *pinqsprite;
 384         skinframe_t *skinframe;
 385         float modelradius;
 386         int texflags = (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_ISSPRITE | TEXF_PICMIP | TEXF_COMPRESS | TEXF_ALPHA | TEXF_CLAMP;
 387
 388         loadmodel->modeldatatypestring = "SPR2";
 389
 390         loadmodel->type = mod_sprite;
 391
 392         loadmodel->DrawSky = NULL;
 393         loadmodel->Draw = R_Model_Sprite_Draw;
 394         loadmodel->DrawDepth = NULL;
 395         loadmodel->DrawLight = NULL;
 396         loadmodel->DrawAddWaterPlanes = NULL;
 397
 398         pinqsprite = (dsprite2_t *)buffer;
 399
 400         version = LittleLong(pinqsprite->version);
 401         if (version != SPRITE2_VERSION)
 402                 Host_Error("Mod_IDS2_Load: %s has wrong version number (%i should be 2 (quake 2)", loadmodel->name, version);
 403
 404         loadmodel->numframes = LittleLong (pinqsprite->numframes);
 405         if (loadmodel->numframes < 1)
 406                 Host_Error ("Mod_IDS2_Load: Invalid # of frames: %d", loadmodel->numframes);
 407         loadmodel->sprite.sprnum_type = SPR_VP_PARALLEL;
 408         loadmodel->synctype = ST_SYNC;
 409
 410         // LadyHavoc: hack to allow sprites to be non-fullbright
 411         fullbright = true;
 412         for (i = 0;i < MAX_QPATH && loadmodel->name[i];i++)
 413                 if (loadmodel->name[i] == '!')
 414                         fullbright = false;
 415
 416         loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 417         loadmodel->sprite.sprdata_frames = (mspriteframe_t *)Mem_Alloc(loadmodel->mempool, sizeof(mspriteframe_t) * loadmodel->numframes);
 418         loadmodel->num_textures = loadmodel->numframes;
 419         loadmodel->num_texturesperskin = 1;
 420         loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, sizeof(texture_t) * loadmodel->num_textures);
 421
 422         modelradius = 0;
 423         for (i = 0;i < loadmodel->numframes;i++)
 424         {
 425                 int origin[2], x, y, width, height;
 426                 const dsprite2frame_t *pinframe;
 427                 mspriteframe_t *sprframe;
 428
 429                 dpsnprintf(loadmodel->animscenes[i].name, sizeof(loadmodel->animscenes[i].name), "frame %i", i);
 430                 loadmodel->animscenes[i].firstframe = i;
 431                 loadmodel->animscenes[i].framecount = 1;
 432                 loadmodel->animscenes[i].framerate = 10;
 433                 loadmodel->animscenes[i].loop = true;
 434
 435                 pinframe = &pinqsprite->frames[i];
 436
 437                 origin[0] = LittleLong (pinframe->origin_x);
 438                 origin[1] = LittleLong (pinframe->origin_y);
 439                 width = LittleLong (pinframe->width);
 440                 height = LittleLong (pinframe->height);
 441
 442                 sprframe = &loadmodel->sprite.sprdata_frames[i];
 443
 444                 // note that sp2 origin[0] is positive, where as it is negative in
 445                 // spr/spr32/hlspr
 446                 sprframe->left = -origin[0];
 447                 sprframe->right = -origin[0] + width;
 448                 sprframe->up = origin[1];
 449                 sprframe->down = origin[1] - height;
 450
 451                 x = (int)max(sprframe->left * sprframe->left, sprframe->right * sprframe->right);
 452                 y = (int)max(sprframe->up * sprframe->up, sprframe->down * sprframe->down);
 453                 if (modelradius < x + y)
 454                         modelradius = x + y;
 455         }
 456
 457         if (cls.state != ca_dedicated)
 458         {
 459                 for (i = 0;i < loadmodel->numframes;i++)
 460                 {
 461                         const dsprite2frame_t *pinframe;
 462                         pinframe = &pinqsprite->frames[i];
 463                         if (!(skinframe = R_SkinFrame_LoadExternal(pinframe->name, texflags, false, false)))
 464                         {
 465                                 Con_Printf(CON_ERROR "Mod_IDS2_Load: failed to load %s", pinframe->name);
 466                                 skinframe = R_SkinFrame_LoadMissing();
 467                         }
 468                         Mod_SpriteSetupTexture(&loadmodel->data_textures[i], skinframe, fullbright, false);
 469                 }
 470         }
 471
 472         modelradius = sqrt(modelradius);
 473         for (i = 0;i < 3;i++)
 474         {
 475                 loadmodel->normalmins[i] = loadmodel->yawmins[i] = loadmodel->rotatedmins[i] = -modelradius;
 476                 loadmodel->normalmaxs[i] = loadmodel->yawmaxs[i] = loadmodel->rotatedmaxs[i] = modelradius;
 477         }
 478         loadmodel->radius = modelradius;
 479         loadmodel->radius2 = modelradius * modelradius;
 480
 481         // TODO: Note that isanimated only means whether vertices change due to
 482         // the animation. This may happen due to sprframe parameters changing.
 483         // Mere texture chanegs OTOH shouldn't require isanimated to be 1.
 484         loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || (loadmodel->animscenes && loadmodel->animscenes[0].framecount > 1);
 485 }