gl_models.c

   1
   2 #include "quakedef.h"
   3
   4 cvar_t gl_transform = {0, "gl_transform", "1"};
   5 cvar_t gl_lockarrays = {0, "gl_lockarrays", "1"};
   6
   7 typedef struct
   8 {
   9         float m[3][4];
  10 } zymbonematrix;
  11
  12 // LordHavoc: vertex array
  13 float *aliasvert;
  14 float *aliasvertnorm;
  15 byte *aliasvertcolor;
  16 byte *aliasvertcolor2;
  17 zymbonematrix *zymbonepose;
  18 int *aliasvertusage;
  19
  20 rtexture_t *chrometexture;
  21
  22 int arraylocked = false;
  23 void GL_LockArray(int first, int count)
  24 {
  25         if (gl_supportslockarrays && gl_lockarrays.value)
  26         {
  27                 qglLockArraysEXT(first, count);
  28                 arraylocked = true;
  29         }
  30 }
  31
  32 void GL_UnlockArray(void)
  33 {
  34         if (arraylocked)
  35         {
  36                 qglUnlockArraysEXT();
  37                 arraylocked = false;
  38         }
  39 }
  40
  41 void GL_SetupModelTransform (vec3_t origin, vec3_t angles, vec_t scale)
  42 {
  43     glTranslatef (origin[0], origin[1], origin[2]);
  44
  45         if (scale != 1)
  46                 glScalef (scale, scale, scale);
  47         if (angles[1])
  48             glRotatef (angles[1],  0, 0, 1);
  49         if (angles[0])
  50             glRotatef (-angles[0],  0, 1, 0);
  51         if (angles[2])
  52             glRotatef (angles[2],  1, 0, 0);
  53 }
  54
  55 // currently unused reflection effect texture
  56 void makechrometexture(void)
  57 {
  58         int i;
  59         byte noise[64*64];
  60         byte data[64*64][4];
  61
  62         fractalnoise(noise, 64, 8);
  63
  64         // convert to RGBA data
  65         for (i = 0;i < 64*64;i++)
  66         {
  67                 data[i][0] = data[i][1] = data[i][2] = noise[i];
  68                 data[i][3] = 255;
  69         }
  70
  71         chrometexture = R_LoadTexture ("chrometexture", 64, 64, &data[0][0], TEXF_MIPMAP | TEXF_RGBA | TEXF_PRECACHE);
  72 }
  73
  74 void gl_models_start(void)
  75 {
  76         // allocate vertex processing arrays
  77         aliasvert = qmalloc(sizeof(float[MD2MAX_VERTS][3]));
  78         aliasvertnorm = qmalloc(sizeof(float[MD2MAX_VERTS][3]));
  79         aliasvertcolor = qmalloc(sizeof(byte[MD2MAX_VERTS][4]));
  80         aliasvertcolor2 = qmalloc(sizeof(byte[MD2MAX_VERTS][4])); // used temporarily for tinted coloring
  81         zymbonepose = qmalloc(sizeof(zymbonematrix[256]));
  82         aliasvertusage = qmalloc(sizeof(int[MD2MAX_VERTS]));
  83         makechrometexture();
  84 }
  85
  86 void gl_models_shutdown(void)
  87 {
  88         qfree(aliasvert);
  89         qfree(aliasvertnorm);
  90         qfree(aliasvertcolor);
  91         qfree(aliasvertcolor2);
  92         qfree(zymbonepose);
  93         qfree(aliasvertusage);
  94 }
  95
  96 void gl_models_newmap(void)
  97 {
  98 }
  99
 100 void GL_Models_Init(void)
 101 {
 102         Cvar_RegisterVariable(&gl_transform);
 103         Cvar_RegisterVariable(&gl_lockarrays);
 104
 105         R_RegisterModule("GL_Models", gl_models_start, gl_models_shutdown, gl_models_newmap);
 106 }
 107
 108 void R_AliasTransformVerts(int vertcount)
 109 {
 110         int i;
 111         vec3_t point, matrix_x, matrix_y, matrix_z;
 112         float *av, *avn;
 113         av = aliasvert;
 114         avn = aliasvertnorm;
 115         matrix_x[0] = softwaretransform_x[0] * softwaretransform_scale;
 116         matrix_x[1] = softwaretransform_y[0] * softwaretransform_scale;
 117         matrix_x[2] = softwaretransform_z[0] * softwaretransform_scale;
 118         matrix_y[0] = softwaretransform_x[1] * softwaretransform_scale;
 119         matrix_y[1] = softwaretransform_y[1] * softwaretransform_scale;
 120         matrix_y[2] = softwaretransform_z[1] * softwaretransform_scale;
 121         matrix_z[0] = softwaretransform_x[2] * softwaretransform_scale;
 122         matrix_z[1] = softwaretransform_y[2] * softwaretransform_scale;
 123         matrix_z[2] = softwaretransform_z[2] * softwaretransform_scale;
 124         for (i = 0;i < vertcount;i++)
 125         {
 126                 // rotate, scale, and translate the vertex locations
 127                 VectorCopy(av, point);
 128                 av[0] = DotProduct(point, matrix_x) + softwaretransform_offset[0];
 129                 av[1] = DotProduct(point, matrix_y) + softwaretransform_offset[1];
 130                 av[2] = DotProduct(point, matrix_z) + softwaretransform_offset[2];
 131                 // rotate the normals
 132                 VectorCopy(avn, point);
 133                 avn[0] = point[0] * softwaretransform_x[0] + point[1] * softwaretransform_y[0] + point[2] * softwaretransform_z[0];
 134                 avn[1] = point[0] * softwaretransform_x[1] + point[1] * softwaretransform_y[1] + point[2] * softwaretransform_z[1];
 135                 avn[2] = point[0] * softwaretransform_x[2] + point[1] * softwaretransform_y[2] + point[2] * softwaretransform_z[2];
 136                 av += 3;
 137                 avn += 3;
 138         }
 139 }
 140
 141 void R_AliasLerpVerts(int vertcount,
 142                                           float lerp1, trivertx_t *verts1, vec3_t fscale1, vec3_t translate1,
 143                                           float lerp2, trivertx_t *verts2, vec3_t fscale2, vec3_t translate2,
 144                                           float lerp3, trivertx_t *verts3, vec3_t fscale3, vec3_t translate3,
 145                                           float lerp4, trivertx_t *verts4, vec3_t fscale4, vec3_t translate4)
 146 {
 147         int i;
 148         vec3_t scale1, scale2, scale3, scale4, translate;
 149         float *n1, *n2, *n3, *n4;
 150         float *av, *avn;
 151         av = aliasvert;
 152         avn = aliasvertnorm;
 153         VectorScale(fscale1, lerp1, scale1);
 154         if (lerp2)
 155         {
 156                 VectorScale(fscale2, lerp2, scale2);
 157                 if (lerp3)
 158                 {
 159                         VectorScale(fscale3, lerp3, scale3);
 160                         if (lerp4)
 161                         {
 162                                 VectorScale(fscale4, lerp4, scale4);
 163                                 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3 + translate4[0] * lerp4;
 164                                 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3 + translate4[1] * lerp4;
 165                                 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3 + translate4[2] * lerp4;
 166                                 // generate vertices
 167                                 for (i = 0;i < vertcount;i++)
 168                                 {
 169                                         av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + verts4->v[0] * scale4[0] + translate[0];
 170                                         av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + verts4->v[1] * scale4[1] + translate[1];
 171                                         av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + verts4->v[2] * scale4[2] + translate[2];
 172                                         n1 = m_bytenormals[verts1->lightnormalindex];
 173                                         n2 = m_bytenormals[verts2->lightnormalindex];
 174                                         n3 = m_bytenormals[verts3->lightnormalindex];
 175                                         n4 = m_bytenormals[verts4->lightnormalindex];
 176                                         avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3 + n4[0] * lerp4;
 177                                         avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3 + n4[1] * lerp4;
 178                                         avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3 + n4[2] * lerp4;
 179                                         av += 3;
 180                                         avn += 3;
 181                                         verts1++;verts2++;verts3++;verts4++;
 182                                 }
 183                         }
 184                         else
 185                         {
 186                                 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3;
 187                                 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3;
 188                                 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3;
 189                                 // generate vertices
 190                                 for (i = 0;i < vertcount;i++)
 191                                 {
 192                                         av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + translate[0];
 193                                         av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + translate[1];
 194                                         av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + translate[2];
 195                                         n1 = m_bytenormals[verts1->lightnormalindex];
 196                                         n2 = m_bytenormals[verts2->lightnormalindex];
 197                                         n3 = m_bytenormals[verts3->lightnormalindex];
 198                                         avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3;
 199                                         avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3;
 200                                         avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3;
 201                                         av += 3;
 202                                         avn += 3;
 203                                         verts1++;verts2++;verts3++;
 204                                 }
 205                         }
 206                 }
 207                 else
 208                 {
 209                         translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2;
 210                         translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2;
 211                         translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2;
 212                         // generate vertices
 213                         for (i = 0;i < vertcount;i++)
 214                         {
 215                                 av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + translate[0];
 216                                 av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + translate[1];
 217                                 av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + translate[2];
 218                                 n1 = m_bytenormals[verts1->lightnormalindex];
 219                                 n2 = m_bytenormals[verts2->lightnormalindex];
 220                                 avn[0] = n1[0] * lerp1 + n2[0] * lerp2;
 221                                 avn[1] = n1[1] * lerp1 + n2[1] * lerp2;
 222                                 avn[2] = n1[2] * lerp1 + n2[2] * lerp2;
 223                                 av += 3;
 224                                 avn += 3;
 225                                 verts1++;verts2++;
 226                         }
 227                 }
 228         }
 229         else
 230         {
 231                 translate[0] = translate1[0] * lerp1;
 232                 translate[1] = translate1[1] * lerp1;
 233                 translate[2] = translate1[2] * lerp1;
 234                 // generate vertices
 235                 if (lerp1 != 1)
 236                 {
 237                         // general but almost never used case
 238                         for (i = 0;i < vertcount;i++)
 239                         {
 240                                 av[0] = verts1->v[0] * scale1[0] + translate[0];
 241                                 av[1] = verts1->v[1] * scale1[1] + translate[1];
 242                                 av[2] = verts1->v[2] * scale1[2] + translate[2];
 243                                 n1 = m_bytenormals[verts1->lightnormalindex];
 244                                 avn[0] = n1[0] * lerp1;
 245                                 avn[1] = n1[1] * lerp1;
 246                                 avn[2] = n1[2] * lerp1;
 247                                 av += 3;
 248                                 avn += 3;
 249                                 verts1++;
 250                         }
 251                 }
 252                 else
 253                 {
 254                         // fast normal case
 255                         for (i = 0;i < vertcount;i++)
 256                         {
 257                                 av[0] = verts1->v[0] * scale1[0] + translate[0];
 258                                 av[1] = verts1->v[1] * scale1[1] + translate[1];
 259                                 av[2] = verts1->v[2] * scale1[2] + translate[2];
 260                                 VectorCopy(m_bytenormals[verts1->lightnormalindex], avn);
 261                                 av += 3;
 262                                 avn += 3;
 263                                 verts1++;
 264                         }
 265                 }
 266         }
 267 }
 268
 269 void GL_DrawModelMesh(rtexture_t *skin, byte *colors, maliashdr_t *m)
 270 {
 271         if (!r_render.value)
 272                 return;
 273         glBindTexture(GL_TEXTURE_2D, R_GetTexture(skin));
 274         if (!colors)
 275         {
 276                 if (lighthalf)
 277                         glColor3f(0.5f, 0.5f, 0.5f);
 278                 else
 279                         glColor3f(1.0f, 1.0f, 1.0f);
 280         }
 281         if (colors)
 282         {
 283                 glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(byte[4]), colors);
 284                 glEnableClientState(GL_COLOR_ARRAY);
 285         }
 286
 287         glDrawElements(GL_TRIANGLES, m->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) m + m->tridata));
 288
 289         if (colors)
 290                 glDisableClientState(GL_COLOR_ARRAY);
 291         // leave it in a state for additional passes
 292         glDepthMask(0);
 293         glEnable(GL_BLEND);
 294         glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive
 295 }
 296
 297 void R_TintModel(byte *in, byte *out, int verts, byte *color)
 298 {
 299         int i;
 300         byte r = color[0];
 301         byte g = color[1];
 302         byte b = color[2];
 303         for (i = 0;i < verts;i++)
 304         {
 305                 out[0] = (byte) ((in[0] * r) >> 8);
 306                 out[1] = (byte) ((in[1] * g) >> 8);
 307                 out[2] = (byte) ((in[2] * b) >> 8);
 308                 out[3] =          in[3];
 309                 in += 4;
 310                 out += 4;
 311         }
 312 }
 313
 314 /*
 315 =================
 316 R_DrawAliasFrame
 317
 318 =================
 319 */
 320 void R_DrawAliasFrame (void)
 321 {
 322         maliashdr_t *m = Mod_Extradata(currentrenderentity->model);
 323 //      int *skinanimrange = (int *) (currentrenderentity->model->skinanimrange + (int) modelheader) + skin * 2;
 324 //      int *skinanim = (int *) (currentrenderentity->model->skinanim + (int) modelheader);
 325         int *skinanimrange = currentrenderentity->model->skinanimrange;
 326         int skin;
 327         rtexture_t **skinanim = currentrenderentity->model->skinanim;
 328         rtexture_t **skinset;
 329
 330         skinanimrange += currentrenderentity->skinnum * 2;
 331         skin = skinanimrange[0];
 332         if (skinanimrange[1] > 1) // animated
 333                 skin += (int) (cl.time * 10) % skinanimrange[1];
 334         skinset = skinanim + skin * 5;
 335
 336         if (gl_transform.value)
 337         {
 338                 if (r_render.value)
 339                 {
 340                         glPushMatrix();
 341                         GL_SetupModelTransform(currentrenderentity->origin, currentrenderentity->angles, currentrenderentity->scale);
 342                 }
 343         }
 344         // always needed, for model lighting
 345         softwaretransformforentity(currentrenderentity);
 346
 347         R_AliasLerpVerts(m->numverts,
 348                 currentrenderentity->frameblend[0].lerp, ((trivertx_t *)((int) m + m->posedata)) + currentrenderentity->frameblend[0].frame * m->numverts, m->scale, m->scale_origin,
 349                 currentrenderentity->frameblend[1].lerp, ((trivertx_t *)((int) m + m->posedata)) + currentrenderentity->frameblend[1].frame * m->numverts, m->scale, m->scale_origin,
 350                 currentrenderentity->frameblend[2].lerp, ((trivertx_t *)((int) m + m->posedata)) + currentrenderentity->frameblend[2].frame * m->numverts, m->scale, m->scale_origin,
 351                 currentrenderentity->frameblend[3].lerp, ((trivertx_t *)((int) m + m->posedata)) + currentrenderentity->frameblend[3].frame * m->numverts, m->scale, m->scale_origin);
 352
 353         if (!gl_transform.value)
 354                 R_AliasTransformVerts(m->numverts);
 355
 356         // prep the vertex array as early as possible
 357         if (r_render.value)
 358         {
 359                 glVertexPointer(3, GL_FLOAT, sizeof(float[3]), aliasvert);
 360                 glEnableClientState(GL_VERTEX_ARRAY);
 361                 glTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), (void *)((int) m->texdata + (int) m));
 362                 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 363                 GL_LockArray(0, m->numverts);
 364         }
 365
 366         R_LightModel(m->numverts);
 367
 368         if (!r_render.value)
 369                 return;
 370         glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 371 //      glShadeModel(GL_SMOOTH);
 372         if (currentrenderentity->effects & EF_ADDITIVE)
 373         {
 374                 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive rendering
 375                 glEnable(GL_BLEND);
 376                 glDepthMask(0);
 377         }
 378         else if (currentrenderentity->alpha != 1.0 || (currentrenderentity->model->flags2 & MODF_TRANSPARENT))
 379         {
 380                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 381                 glEnable(GL_BLEND);
 382                 glDepthMask(0);
 383         }
 384         else
 385         {
 386                 glDisable(GL_BLEND);
 387                 glDepthMask(1);
 388         }
 389
 390         if (skinset[0] || skinset[1] || skinset[2] || skinset[3] || skinset[4])
 391         {
 392                 if (currentrenderentity->colormap >= 0 && (skinset[0] || skinset[1] || skinset[2]))
 393                 {
 394                         int c;
 395                         if (skinset[0])
 396                                 GL_DrawModelMesh(skinset[0], aliasvertcolor, m);
 397                         if (skinset[1])
 398                         {
 399                                 c = (currentrenderentity->colormap & 0xF) << 4;c += (c >= 128 && c < 224) ? 4 : 12; // 128-224 are backwards ranges
 400                                 R_TintModel(aliasvertcolor, aliasvertcolor2, m->numverts, (byte *) (&d_8to24table[c]));
 401                                 GL_DrawModelMesh(skinset[1], aliasvertcolor2, m);
 402                         }
 403                         if (skinset[2])
 404                         {
 405                                 c = currentrenderentity->colormap & 0xF0      ;c += (c >= 128 && c < 224) ? 4 : 12; // 128-224 are backwards ranges
 406                                 R_TintModel(aliasvertcolor, aliasvertcolor2, m->numverts, (byte *) (&d_8to24table[c]));
 407                                 GL_DrawModelMesh(skinset[2], aliasvertcolor2, m);
 408                         }
 409                 }
 410                 else
 411                 {
 412                         if (skinset[4])
 413                                 GL_DrawModelMesh(skinset[4], aliasvertcolor, m);
 414                         else
 415                         {
 416                                 if (skinset[0]) GL_DrawModelMesh(skinset[0], aliasvertcolor, m);
 417                                 if (skinset[1]) GL_DrawModelMesh(skinset[1], aliasvertcolor, m);
 418                                 if (skinset[2]) GL_DrawModelMesh(skinset[2], aliasvertcolor, m);
 419                         }
 420                 }
 421                 if (skinset[3]) GL_DrawModelMesh(skinset[3], NULL, m);
 422         }
 423         else
 424                 GL_DrawModelMesh(0, NULL, m);
 425
 426         if (fogenabled)
 427         {
 428                 vec3_t diff;
 429                 glDisable (GL_TEXTURE_2D);
 430                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 431                 glEnable (GL_BLEND);
 432                 glDepthMask(0); // disable zbuffer updates
 433
 434                 VectorSubtract(currentrenderentity->origin, r_origin, diff);
 435                 glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
 436
 437                 glDrawElements(GL_TRIANGLES, m->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) m + m->tridata));
 438
 439                 glEnable (GL_TEXTURE_2D);
 440                 glColor3f (1,1,1);
 441         }
 442
 443         GL_UnlockArray();
 444         glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 445         glDisableClientState(GL_VERTEX_ARRAY);
 446
 447         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 448         glEnable (GL_BLEND);
 449         glDepthMask(1);
 450
 451         glPopMatrix();
 452 }
 453
 454 /*
 455 =================
 456 R_DrawQ2AliasFrame
 457
 458 =================
 459 */
 460 void R_DrawQ2AliasFrame (void)
 461 {
 462         int *order, count;
 463         md2frame_t *frame1, *frame2, *frame3, *frame4;
 464         vec3_t diff;
 465         md2mem_t *m = Mod_Extradata(currentrenderentity->model);
 466 //      int *skinanimrange = (int *) (currentrenderentity->model->skinanimrange + (int) modelheader) + skin * 2;
 467 //      int *skinanim = (int *) (currentrenderentity->model->skinanim + (int) modelheader);
 468         int *skinanimrange = currentrenderentity->model->skinanimrange;
 469         int skin;
 470         rtexture_t **skinanim = currentrenderentity->model->skinanim;
 471         rtexture_t **skinset;
 472
 473         skinanimrange += currentrenderentity->skinnum * 2;
 474         skin = skinanimrange[0];
 475         if (skinanimrange[1] > 1) // animated
 476                 skin += (int) (cl.time * 10) % skinanimrange[1];
 477         skinset = skinanim + skin * 5;
 478
 479         if (r_render.value)
 480                 glBindTexture(GL_TEXTURE_2D, R_GetTexture(skinset[0]));
 481
 482         if (gl_transform.value)
 483         {
 484                 if (r_render.value)
 485                 {
 486                         glPushMatrix();
 487                         GL_SetupModelTransform(currentrenderentity->origin, currentrenderentity->angles, currentrenderentity->scale);
 488                 }
 489         }
 490         // always needed, for model lighting
 491         softwaretransformforentity(currentrenderentity);
 492
 493         frame1 = (void *)((int) m + m->ofs_frames + (m->framesize * currentrenderentity->frameblend[0].frame));
 494         frame2 = (void *)((int) m + m->ofs_frames + (m->framesize * currentrenderentity->frameblend[1].frame));
 495         frame3 = (void *)((int) m + m->ofs_frames + (m->framesize * currentrenderentity->frameblend[2].frame));
 496         frame4 = (void *)((int) m + m->ofs_frames + (m->framesize * currentrenderentity->frameblend[3].frame));
 497         R_AliasLerpVerts(m->num_xyz,
 498                 currentrenderentity->frameblend[0].lerp, frame1->verts, frame1->scale, frame1->translate,
 499                 currentrenderentity->frameblend[1].lerp, frame2->verts, frame2->scale, frame2->translate,
 500                 currentrenderentity->frameblend[2].lerp, frame3->verts, frame3->scale, frame3->translate,
 501                 currentrenderentity->frameblend[3].lerp, frame4->verts, frame4->scale, frame4->translate);
 502         if (!gl_transform.value)
 503                 R_AliasTransformVerts(m->num_xyz);
 504
 505         R_LightModel(m->num_xyz);
 506
 507         if (!r_render.value)
 508                 return;
 509
 510         if (currentrenderentity->effects & EF_ADDITIVE)
 511         {
 512                 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive rendering
 513                 glEnable(GL_BLEND);
 514                 glDepthMask(0);
 515         }
 516         else if (currentrenderentity->alpha != 1.0 || (currentrenderentity->model->flags2 & MODF_TRANSPARENT))
 517         {
 518                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 519                 glEnable(GL_BLEND);
 520                 glDepthMask(0);
 521         }
 522         else
 523         {
 524                 glDisable(GL_BLEND);
 525                 glDepthMask(1);
 526         }
 527
 528         // LordHavoc: big mess...
 529         // using vertex arrays only slightly, although it is enough to prevent duplicates
 530         // (saving half the transforms)
 531         glVertexPointer(3, GL_FLOAT, sizeof(float[3]), aliasvert);
 532         glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(byte[4]), aliasvertcolor);
 533         glEnableClientState(GL_VERTEX_ARRAY);
 534         glEnableClientState(GL_COLOR_ARRAY);
 535
 536         order = (int *)((int)m + m->ofs_glcmds);
 537         while(1)
 538         {
 539                 if (!(count = *order++))
 540                         break;
 541                 if (count > 0)
 542                         glBegin(GL_TRIANGLE_STRIP);
 543                 else
 544                 {
 545                         glBegin(GL_TRIANGLE_FAN);
 546                         count = -count;
 547                 }
 548                 do
 549                 {
 550                         glTexCoord2f(((float *)order)[0], ((float *)order)[1]);
 551                         glArrayElement(order[2]);
 552                         order += 3;
 553                 }
 554                 while (count--);
 555         }
 556
 557         glDisableClientState(GL_COLOR_ARRAY);
 558         glDisableClientState(GL_VERTEX_ARRAY);
 559
 560         if (fogenabled)
 561         {
 562                 glDisable (GL_TEXTURE_2D);
 563                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 564                 glEnable (GL_BLEND);
 565                 glDepthMask(0); // disable zbuffer updates
 566
 567                 VectorSubtract(currentrenderentity->origin, r_origin, diff);
 568                 glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
 569
 570                 // LordHavoc: big mess...
 571                 // using vertex arrays only slightly, although it is enough to prevent duplicates
 572                 // (saving half the transforms)
 573                 glVertexPointer(3, GL_FLOAT, sizeof(float[3]), aliasvert);
 574                 glEnableClientState(GL_VERTEX_ARRAY);
 575
 576                 order = (int *)((int)m + m->ofs_glcmds);
 577                 while(1)
 578                 {
 579                         if (!(count = *order++))
 580                                 break;
 581                         if (count > 0)
 582                                 glBegin(GL_TRIANGLE_STRIP);
 583                         else
 584                         {
 585                                 glBegin(GL_TRIANGLE_FAN);
 586                                 count = -count;
 587                         }
 588                         do
 589                         {
 590                                 glArrayElement(order[2]);
 591                                 order += 3;
 592                         }
 593                         while (count--);
 594                 }
 595
 596                 glDisableClientState(GL_VERTEX_ARRAY);
 597
 598                 glEnable (GL_TEXTURE_2D);
 599                 glColor3f (1,1,1);
 600         }
 601
 602         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 603         glEnable (GL_BLEND);
 604         glDepthMask(1);
 605
 606         if (gl_transform.value)
 607                 glPopMatrix();
 608 }
 609
 610 void ZymoticLerpBones(int count, zymbonematrix *bonebase, frameblend_t *blend, zymbone_t *bone, float rootorigin[3], float rootangles[3], float rootscale)
 611 {
 612         float lerp1, lerp2, lerp3, lerp4;
 613         zymbonematrix *out, rootmatrix, m, *bone1, *bone2, *bone3, *bone4;
 614         out = zymbonepose;
 615         AngleVectors(rootangles, rootmatrix.m[0], rootmatrix.m[1], rootmatrix.m[2]);
 616         VectorScale(rootmatrix.m[0], rootscale, rootmatrix.m[0]);
 617         VectorScale(rootmatrix.m[1], rootscale, rootmatrix.m[1]);
 618         VectorScale(rootmatrix.m[2], rootscale, rootmatrix.m[2]);
 619         rootmatrix.m[0][3] = rootorigin[0];
 620         rootmatrix.m[1][3] = rootorigin[1];
 621         rootmatrix.m[2][3] = rootorigin[2];
 622         bone1 = bonebase + blend[0].frame * count;
 623         lerp1 = blend[0].lerp;
 624         if (blend[1].lerp)
 625         {
 626                 bone2 = bonebase + blend[1].frame * count;
 627                 lerp2 = blend[1].lerp;
 628                 if (blend[2].lerp)
 629                 {
 630                         bone3 = bonebase + blend[2].frame * count;
 631                         lerp3 = blend[2].lerp;
 632                         if (blend[3].lerp)
 633                         {
 634                                 // 4 poses
 635                                 bone4 = bonebase + blend[3].frame * count;
 636                                 lerp4 = blend[3].lerp;
 637                                 while(count--)
 638                                 {
 639                                         // interpolate matrices
 640                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3 + bone4->m[0][0] * lerp4;
 641                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3 + bone4->m[0][1] * lerp4;
 642                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3 + bone4->m[0][2] * lerp4;
 643                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3 + bone4->m[0][3] * lerp4;
 644                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3 + bone4->m[1][0] * lerp4;
 645                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3 + bone4->m[1][1] * lerp4;
 646                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3 + bone4->m[1][2] * lerp4;
 647                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3 + bone4->m[1][3] * lerp4;
 648                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3 + bone4->m[2][0] * lerp4;
 649                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3 + bone4->m[2][1] * lerp4;
 650                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3 + bone4->m[2][2] * lerp4;
 651                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3 + bone4->m[2][3] * lerp4;
 652                                         if (bone->parent >= 0)
 653                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
 654                                         else
 655                                                 R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
 656                                         bone1++;
 657                                         bone2++;
 658                                         bone3++;
 659                                         bone4++;
 660                                         bone++;
 661                                         out++;
 662                                 }
 663                         }
 664                         else
 665                         {
 666                                 // 3 poses
 667                                 while(count--)
 668                                 {
 669                                         // interpolate matrices
 670                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3;
 671                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3;
 672                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3;
 673                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3;
 674                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3;
 675                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3;
 676                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3;
 677                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3;
 678                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3;
 679                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3;
 680                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3;
 681                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3;
 682                                         if (bone->parent >= 0)
 683                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
 684                                         else
 685                                                 R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
 686                                         bone1++;
 687                                         bone2++;
 688                                         bone3++;
 689                                         bone++;
 690                                         out++;
 691                                 }
 692                         }
 693                 }
 694                 else
 695                 {
 696                         // 2 poses
 697                         while(count--)
 698                         {
 699                                 // interpolate matrices
 700                                 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2;
 701                                 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2;
 702                                 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2;
 703                                 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2;
 704                                 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2;
 705                                 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2;
 706                                 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2;
 707                                 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2;
 708                                 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2;
 709                                 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2;
 710                                 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2;
 711                                 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2;
 712                                 if (bone->parent >= 0)
 713                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
 714                                 else
 715                                         R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
 716                                 bone1++;
 717                                 bone2++;
 718                                 bone++;
 719                                 out++;
 720                         }
 721                 }
 722         }
 723         else
 724         {
 725                 // 1 pose
 726                 if (lerp1 != 1)
 727                 {
 728                         // lerp != 1.0
 729                         while(count--)
 730                         {
 731                                 // interpolate matrices
 732                                 m.m[0][0] = bone1->m[0][0] * lerp1;
 733                                 m.m[0][1] = bone1->m[0][1] * lerp1;
 734                                 m.m[0][2] = bone1->m[0][2] * lerp1;
 735                                 m.m[0][3] = bone1->m[0][3] * lerp1;
 736                                 m.m[1][0] = bone1->m[1][0] * lerp1;
 737                                 m.m[1][1] = bone1->m[1][1] * lerp1;
 738                                 m.m[1][2] = bone1->m[1][2] * lerp1;
 739                                 m.m[1][3] = bone1->m[1][3] * lerp1;
 740                                 m.m[2][0] = bone1->m[2][0] * lerp1;
 741                                 m.m[2][1] = bone1->m[2][1] * lerp1;
 742                                 m.m[2][2] = bone1->m[2][2] * lerp1;
 743                                 m.m[2][3] = bone1->m[2][3] * lerp1;
 744                                 if (bone->parent >= 0)
 745                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
 746                                 else
 747                                         R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
 748                                 bone1++;
 749                                 bone++;
 750                                 out++;
 751                         }
 752                 }
 753                 else
 754                 {
 755                         // lerp == 1.0
 756                         while(count--)
 757                         {
 758                                 if (bone->parent >= 0)
 759                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &bone1->m[0], &out->m[0]);
 760                                 else
 761                                         R_ConcatTransforms(&rootmatrix.m[0], &bone1->m[0], &out->m[0]);
 762                                 bone1++;
 763                                 bone++;
 764                                 out++;
 765                         }
 766                 }
 767         }
 768 }
 769
 770 void ZymoticTransformVerts(int vertcount, int *bonecounts, zymvertex_t *vert)
 771 {
 772         int c;
 773         float *out = aliasvert;
 774         zymbonematrix *matrix;
 775         while(vertcount--)
 776         {
 777                 c = *bonecounts++;
 778                 // FIXME: validate bonecounts at load time (must be >= 1)
 779                 if (c == 1)
 780                 {
 781                         matrix = &zymbonepose[vert->bonenum];
 782                         out[0] = vert->origin[0] * matrix->m[0][0] + vert->origin[1] * matrix->m[0][1] + vert->origin[2] * matrix->m[0][2] + matrix->m[0][3];
 783                         out[1] = vert->origin[0] * matrix->m[1][0] + vert->origin[1] * matrix->m[1][1] + vert->origin[2] * matrix->m[1][2] + matrix->m[1][3];
 784                         out[2] = vert->origin[0] * matrix->m[2][0] + vert->origin[1] * matrix->m[2][1] + vert->origin[2] * matrix->m[2][2] + matrix->m[2][3];
 785                         vert++;
 786                 }
 787                 else
 788                 {
 789                         VectorClear(out);
 790                         while(c--)
 791                         {
 792                                 matrix = &zymbonepose[vert->bonenum];
 793                                 out[0] += vert->origin[0] * matrix->m[0][0] + vert->origin[1] * matrix->m[0][1] + vert->origin[2] * matrix->m[0][2] + matrix->m[0][3];
 794                                 out[1] += vert->origin[0] * matrix->m[1][0] + vert->origin[1] * matrix->m[1][1] + vert->origin[2] * matrix->m[1][2] + matrix->m[1][3];
 795                                 out[2] += vert->origin[0] * matrix->m[2][0] + vert->origin[1] * matrix->m[2][1] + vert->origin[2] * matrix->m[2][2] + matrix->m[2][3];
 796                                 vert++;
 797                         }
 798                 }
 799                 out += 3;
 800         }
 801 }
 802
 803 void ZymoticCalcNormals(int vertcount, int shadercount, int *renderlist)
 804 {
 805         int a, b, c, d;
 806         float *out, v1[3], v2[3], normal[3];
 807         int *u;
 808         // clear normals
 809         memset(aliasvertnorm, 0, sizeof(float[3]) * vertcount);
 810         memset(aliasvertusage, 0, sizeof(int) * vertcount);
 811         // parse render list and accumulate surface normals
 812         while(shadercount--)
 813         {
 814                 d = *renderlist++;
 815                 while (d--)
 816                 {
 817                         a = renderlist[0]*3;
 818                         b = renderlist[1]*3;
 819                         c = renderlist[2]*3;
 820                         v1[0] = aliasvert[a+0] - aliasvert[b+0];
 821                         v1[1] = aliasvert[a+1] - aliasvert[b+1];
 822                         v1[2] = aliasvert[a+2] - aliasvert[b+2];
 823                         v2[0] = aliasvert[c+0] - aliasvert[b+0];
 824                         v2[1] = aliasvert[c+1] - aliasvert[b+1];
 825                         v2[2] = aliasvert[c+2] - aliasvert[b+2];
 826                         CrossProduct(v1, v2, normal);
 827                         VectorNormalize(normal);
 828                         // add surface normal to vertices
 829                         aliasvertnorm[a+0] += normal[0];
 830                         aliasvertnorm[a+1] += normal[1];
 831                         aliasvertnorm[a+2] += normal[2];
 832                         aliasvertusage[a]++;
 833                         aliasvertnorm[b+0] += normal[0];
 834                         aliasvertnorm[b+1] += normal[1];
 835                         aliasvertnorm[b+2] += normal[2];
 836                         aliasvertusage[b]++;
 837                         aliasvertnorm[c+0] += normal[0];
 838                         aliasvertnorm[c+1] += normal[1];
 839                         aliasvertnorm[c+2] += normal[2];
 840                         aliasvertusage[c]++;
 841                         renderlist += 3;
 842                 }
 843         }
 844         // average surface normals
 845         out = aliasvertnorm;
 846         u = aliasvertusage;
 847         while(vertcount--)
 848         {
 849                 if (*u > 1)
 850                 {
 851                         a = ixtable[*u];
 852                         out[0] *= a;
 853                         out[1] *= a;
 854                         out[2] *= a;
 855                 }
 856                 u++;
 857                 out += 3;
 858         }
 859 }
 860
 861 void GL_DrawZymoticModelMesh(byte *colors, zymtype1header_t *m)
 862 {
 863         int i, c, *renderlist;
 864         rtexture_t **texture;
 865         if (!r_render.value)
 866                 return;
 867         renderlist = (int *)(m->lump_render.start + (int) m);
 868         texture = (rtexture_t **)(m->lump_shaders.start + (int) m);
 869         glVertexPointer(3, GL_FLOAT, sizeof(float[3]), aliasvert);
 870         glEnableClientState(GL_VERTEX_ARRAY);
 871
 872         glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(byte[4]), colors);
 873         glEnableClientState(GL_COLOR_ARRAY);
 874
 875         glTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), (float *)(m->lump_texcoords.start + (int) m));
 876         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 877
 878         for (i = 0;i < m->numshaders;i++)
 879         {
 880                 c = (*renderlist++) * 3;
 881                 glBindTexture(GL_TEXTURE_2D, R_GetTexture(*texture));
 882                 texture++;
 883                 glDrawElements(GL_TRIANGLES, c, GL_UNSIGNED_INT, renderlist);
 884                 renderlist += c;
 885         }
 886
 887         glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 888
 889         glDisableClientState(GL_COLOR_ARRAY);
 890
 891         glDisableClientState(GL_VERTEX_ARRAY);
 892 }
 893
 894 void GL_DrawZymoticModelMeshFog(vec3_t org, zymtype1header_t *m)
 895 {
 896         vec3_t diff;
 897         int i, c, *renderlist;
 898         if (!r_render.value)
 899                 return;
 900         renderlist = (int *)(m->lump_render.start + (int) m);
 901         glDisable(GL_TEXTURE_2D);
 902         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 903         glEnable (GL_BLEND);
 904         glDepthMask(0); // disable zbuffer updates
 905
 906         VectorSubtract(org, r_origin, diff);
 907         glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
 908
 909         glVertexPointer(3, GL_FLOAT, sizeof(float[3]), aliasvert);
 910         glEnableClientState(GL_VERTEX_ARRAY);
 911
 912         for (i = 0;i < m->numshaders;i++)
 913         {
 914                 c = (*renderlist++) * 3;
 915                 glDrawElements(GL_TRIANGLES, c, GL_UNSIGNED_INT, renderlist);
 916                 renderlist += c;
 917         }
 918
 919         glDisableClientState(GL_VERTEX_ARRAY);
 920
 921         glEnable(GL_TEXTURE_2D);
 922         glColor3f (1,1,1);
 923 }
 924
 925 /*
 926 =================
 927 R_DrawZymoticFrame
 928 =================
 929 */
 930 void R_DrawZymoticFrame (void)
 931 {
 932         zymtype1header_t *m = Mod_Extradata(currentrenderentity->model);
 933         ZymoticLerpBones(m->numbones, (zymbonematrix *)(m->lump_poses.start + (int) m), currentrenderentity->frameblend, (zymbone_t *)(m->lump_bones.start + (int) m), currentrenderentity->origin, currentrenderentity->angles, currentrenderentity->scale);
 934         ZymoticTransformVerts(m->numverts, (int *)(m->lump_vertbonecounts.start + (int) m), (zymvertex_t *)(m->lump_verts.start + (int) m));
 935         ZymoticCalcNormals(m->numverts, m->numshaders, (int *)(m->lump_render.start + (int) m));
 936
 937         R_LightModel(m->numverts);
 938
 939         if (!r_render.value)
 940                 return;
 941         glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 942 //      glShadeModel(GL_SMOOTH);
 943         if (currentrenderentity->effects & EF_ADDITIVE)
 944         {
 945                 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive rendering
 946                 glEnable(GL_BLEND);
 947                 glDepthMask(0);
 948         }
 949         else if (currentrenderentity->alpha != 1.0)
 950         {
 951                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 952                 glEnable(GL_BLEND);
 953                 glDepthMask(0);
 954         }
 955         else
 956         {
 957                 glDisable(GL_BLEND);
 958                 glDepthMask(1);
 959         }
 960
 961         GL_DrawZymoticModelMesh(aliasvertcolor, m);
 962
 963         if (fogenabled)
 964                 GL_DrawZymoticModelMeshFog(currentrenderentity->origin, m);
 965
 966         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 967         glEnable (GL_BLEND);
 968         glDepthMask(1);
 969 }
 970
 971 /*
 972 =================
 973 R_DrawAliasModel
 974
 975 =================
 976 */
 977 void R_DrawAliasModel (void)
 978 {
 979         if (currentrenderentity->alpha < (1.0 / 64.0))
 980                 return; // basically completely transparent
 981
 982         c_models++;
 983
 984         if (r_render.value)
 985                 glEnable (GL_TEXTURE_2D);
 986
 987         c_alias_polys += currentrenderentity->model->numtris;
 988         if (currentrenderentity->model->aliastype == ALIASTYPE_ZYM)
 989                 R_DrawZymoticFrame ();
 990         else if (currentrenderentity->model->aliastype == ALIASTYPE_MD2)
 991                 R_DrawQ2AliasFrame ();
 992         else
 993                 R_DrawAliasFrame   ();
 994 }