gl_models.c

   1
   2 #include "quakedef.h"
   3
   4 // LordHavoc: vertex array
   5 float *aliasvert;
   6 float *aliasvertnorm;
   7 byte *aliasvertcolor;
   8 byte *aliasvertcolor2;
   9
  10 int chrometexture;
  11
  12 void makechrometexture()
  13 {
  14         int i;
  15         byte noise[64*64];
  16         byte data[64*64][4];
  17
  18         fractalnoise(noise, 64);
  19
  20         // convert to RGBA data
  21         for (i = 0;i < 64*64;i++)
  22         {
  23                 data[i][0] = data[i][1] = data[i][2] = noise[i];
  24                 data[i][3] = 255;
  25         }
  26
  27         chrometexture = GL_LoadTexture ("chrometexture", 64, 64, &data[0][0], true, false, 4);
  28 }
  29
  30 void gl_models_start()
  31 {
  32         // allocate vertex processing arrays
  33         aliasvert = malloc(sizeof(float[MD2MAX_VERTS][3]));
  34         aliasvertnorm = malloc(sizeof(float[MD2MAX_VERTS][3]));
  35         aliasvertcolor = malloc(sizeof(byte[MD2MAX_VERTS][4]));
  36         aliasvertcolor2 = malloc(sizeof(byte[MD2MAX_VERTS][4])); // used temporarily for tinted coloring
  37         makechrometexture();
  38 }
  39
  40 void gl_models_shutdown()
  41 {
  42         free(aliasvert);
  43         free(aliasvertnorm);
  44         free(aliasvertcolor);
  45         free(aliasvertcolor2);
  46 }
  47
  48 void GL_Models_Init()
  49 {
  50         R_RegisterModule("GL_Models", gl_models_start, gl_models_shutdown);
  51 }
  52
  53 extern vec3_t softwaretransform_x;
  54 extern vec3_t softwaretransform_y;
  55 extern vec3_t softwaretransform_z;
  56 extern vec_t softwaretransform_scale;
  57 extern vec3_t softwaretransform_offset;
  58 void R_AliasLerpVerts(int vertcount, float lerp, trivert2 *verts1, vec3_t scale1, vec3_t translate1, trivert2 *verts2, vec3_t scale2, vec3_t translate2)
  59 {
  60         int i;
  61         vec3_t point, matrix_x, matrix_y, matrix_z;
  62         float *av, *avn;
  63         av = aliasvert;
  64         avn = aliasvertnorm;
  65         VectorScale(softwaretransform_x, softwaretransform_scale, matrix_x);
  66         VectorScale(softwaretransform_y, softwaretransform_scale, matrix_y);
  67         VectorScale(softwaretransform_z, softwaretransform_scale, matrix_z);
  68         if (lerp < 0) lerp = 0;
  69         if (lerp > 1) lerp = 1;
  70         if (lerp != 0)
  71         {
  72                 float ilerp, ilerp127, lerp127, scalex1, scalex2, translatex, scaley1, scaley2, translatey, scalez1, scalez2, translatez;
  73                 if (lerp < 0) lerp = 0;
  74                 if (lerp > 1) lerp = 1;
  75                 ilerp = 1 - lerp;
  76                 ilerp127 = ilerp * (1.0 / 127.0);
  77                 lerp127 = lerp * (1.0 / 127.0);
  78                 // calculate combined interpolation variables
  79                 scalex1 = scale1[0] * ilerp;scalex2 = scale2[0] *  lerp;translatex = translate1[0] * ilerp + translate2[0] *  lerp;
  80                 scaley1 = scale1[1] * ilerp;scaley2 = scale2[1] *  lerp;translatey = translate1[1] * ilerp + translate2[1] *  lerp;
  81                 scalez1 = scale1[2] * ilerp;scalez2 = scale2[2] *  lerp;translatez = translate1[2] * ilerp + translate2[2] *  lerp;
  82                 // generate vertices
  83                 for (i = 0;i < vertcount;i++)
  84                 {
  85                         // rotate, scale, and translate the vertex locations
  86                         point[0] = verts1->v[0] * scalex1 + verts2->v[0] * scalex2 + translatex;
  87                         point[1] = verts1->v[1] * scaley1 + verts2->v[1] * scaley2 + translatey;
  88                         point[2] = verts1->v[2] * scalez1 + verts2->v[2] * scalez2 + translatez;
  89                         *av++ = point[0] * matrix_x[0] + point[1] * matrix_y[0] + point[2] * matrix_z[0] + softwaretransform_offset[0];
  90                         *av++ = point[0] * matrix_x[1] + point[1] * matrix_y[1] + point[2] * matrix_z[1] + softwaretransform_offset[1];
  91                         *av++ = point[0] * matrix_x[2] + point[1] * matrix_y[2] + point[2] * matrix_z[2] + softwaretransform_offset[2];
  92                         // rotate the normals
  93                         point[0] = verts1->n[0] * ilerp127 + verts2->n[0] * lerp127;
  94                         point[1] = verts1->n[1] * ilerp127 + verts2->n[1] * lerp127;
  95                         point[2] = verts1->n[2] * ilerp127 + verts2->n[2] * lerp127;
  96                         *avn++ = point[0] * softwaretransform_x[0] + point[1] * softwaretransform_y[0] + point[2] * softwaretransform_z[0];
  97                         *avn++ = point[0] * softwaretransform_x[1] + point[1] * softwaretransform_y[1] + point[2] * softwaretransform_z[1];
  98                         *avn++ = point[0] * softwaretransform_x[2] + point[1] * softwaretransform_y[2] + point[2] * softwaretransform_z[2];
  99                         verts1++;verts2++;
 100                 }
 101         }
 102         else
 103         {
 104                 // generate vertices
 105                 for (i = 0;i < vertcount;i++)
 106                 {
 107                         // rotate, scale, and translate the vertex locations
 108                         point[0] = verts1->v[0] * scale1[0] + translate1[0];
 109                         point[1] = verts1->v[1] * scale1[1] + translate1[1];
 110                         point[2] = verts1->v[2] * scale1[2] + translate1[2];
 111                         *av++ = point[0] * matrix_x[0] + point[1] * matrix_y[0] + point[2] * matrix_z[0] + softwaretransform_offset[0];
 112                         *av++ = point[0] * matrix_x[1] + point[1] * matrix_y[1] + point[2] * matrix_z[1] + softwaretransform_offset[1];
 113                         *av++ = point[0] * matrix_x[2] + point[1] * matrix_y[2] + point[2] * matrix_z[2] + softwaretransform_offset[2];
 114                         // rotate the normals
 115                         point[0] = verts1->n[0] * (1.0f / 127.0f);
 116                         point[1] = verts1->n[1] * (1.0f / 127.0f);
 117                         point[2] = verts1->n[2] * (1.0f / 127.0f);
 118                         *avn++ = point[0] * softwaretransform_x[0] + point[1] * softwaretransform_y[0] + point[2] * softwaretransform_z[0];
 119                         *avn++ = point[0] * softwaretransform_x[1] + point[1] * softwaretransform_y[1] + point[2] * softwaretransform_z[1];
 120                         *avn++ = point[0] * softwaretransform_x[2] + point[1] * softwaretransform_y[2] + point[2] * softwaretransform_z[2];
 121                         verts1++;
 122                 }
 123         }
 124 }
 125
 126 float R_CalcAnimLerp(entity_t *ent, int pose, float lerpscale)
 127 {
 128         if (ent->draw_lastmodel == ent->model && ent->draw_lerpstart <= cl.time)
 129         {
 130                 if (pose != ent->draw_pose)
 131                 {
 132                         ent->draw_lastpose = ent->draw_pose;
 133                         ent->draw_pose = pose;
 134                         ent->draw_lerpstart = cl.time;
 135                         return 0;
 136                 }
 137                 else
 138                         return ((cl.time - ent->draw_lerpstart) * lerpscale);
 139         }
 140         else // uninitialized
 141         {
 142                 ent->draw_lastmodel = ent->model;
 143                 ent->draw_lastpose = ent->draw_pose = pose;
 144                 ent->draw_lerpstart = cl.time;
 145                 return 0;
 146         }
 147 }
 148
 149 extern cvar_t gl_vertexarrays;
 150 extern qboolean lighthalf;
 151 void GL_DrawModelMesh(int skin, byte *colors, maliashdr_t *maliashdr)
 152 {
 153         int i;
 154         glBindTexture(GL_TEXTURE_2D, skin);
 155         if (!colors)
 156         {
 157                 if (lighthalf)
 158                         glColor3f(0.5f, 0.5f, 0.5f);
 159                 else
 160                         glColor3f(1.0f, 1.0f, 1.0f);
 161         }
 162         if (gl_vertexarrays.value)
 163         {
 164                 if (colors)
 165                 {
 166                         qglColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
 167                         glEnableClientState(GL_COLOR_ARRAY);
 168                 }
 169
 170                 qglTexCoordPointer(2, GL_FLOAT, 0, (void *)((int) maliashdr->texdata + (int) maliashdr));
 171                 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 172
 173                 qglDrawElements(GL_TRIANGLES, maliashdr->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) maliashdr + maliashdr->tridata));
 174
 175                 glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 176
 177                 if (colors)
 178                         glDisableClientState(GL_COLOR_ARRAY);
 179         }
 180         else
 181         {
 182                 unsigned short *in, index;
 183                 float *tex;
 184                 in = (void *)((int) maliashdr + maliashdr->tridata);
 185                 glBegin(GL_TRIANGLES);
 186                 tex = (void *)((int) maliashdr + maliashdr->texdata);
 187                 for (i = 0;i < maliashdr->numtris * 3;i++)
 188                 {
 189                         index = *in++;
 190                         glTexCoord2f(tex[index*2], tex[index*2+1]);
 191                         if (colors)
 192                                 glColor4f(colors[index*4] * (1.0f / 255.0f), colors[index*4+1] * (1.0f / 255.0f), colors[index*4+2] * (1.0f / 255.0f), colors[index*4+3] * (1.0f / 255.0f));
 193                         glVertex3fv(&aliasvert[index*3]);
 194                 }
 195                 glEnd();
 196         }
 197         // leave it in a state for additional passes
 198         glDepthMask(0);
 199         glEnable(GL_BLEND);
 200         glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive
 201 }
 202
 203 void R_TintModel(byte *in, byte *out, int verts, byte *color)
 204 {
 205         int i;
 206         byte r = color[0];
 207         byte g = color[1];
 208         byte b = color[2];
 209         for (i = 0;i < verts;i++)
 210         {
 211                 out[0] = (byte) ((in[0] * r) >> 8);
 212                 out[1] = (byte) ((in[1] * g) >> 8);
 213                 out[2] = (byte) ((in[2] * b) >> 8);
 214                 out[3] =          in[3];
 215                 in += 4;
 216                 out += 4;
 217         }
 218 }
 219
 220 /*
 221 =================
 222 R_DrawAliasFrame
 223
 224 =================
 225 */
 226 extern vec3_t lightspot;
 227 void R_LightModel(int numverts, vec3_t center, vec3_t basecolor);
 228 void R_DrawAliasFrame (maliashdr_t *maliashdr, float alpha, vec3_t color, entity_t *ent, int shadow, vec3_t org, int frame, int *skin, int colormap, int effects, int flags)
 229 {
 230         int             i, pose;
 231         float   lerpscale, lerp;
 232         maliasframe_t *frameinfo;
 233
 234         softwaretransformforentity(ent);
 235
 236         if ((frame >= maliashdr->numframes) || (frame < 0))
 237         {
 238                 Con_DPrintf ("R_AliasSetupFrame: no such frame %d\n", frame);
 239                 frame = 0;
 240         }
 241
 242         frameinfo = ((maliasframe_t *)((int) maliashdr + maliashdr->framedata)) + frame;
 243         pose = frameinfo->start;
 244
 245         if (frameinfo->length > 1)
 246         {
 247                 lerpscale = frameinfo->rate;
 248                 pose += (int)(cl.time * frameinfo->rate) % frameinfo->length;
 249         }
 250         else
 251                 lerpscale = 10.0f;
 252
 253         lerp = R_CalcAnimLerp(ent, pose, lerpscale);
 254
 255         R_AliasLerpVerts(maliashdr->numverts, lerp, (trivert2 *)((int) maliashdr + maliashdr->posedata) + ent->draw_lastpose * maliashdr->numverts, maliashdr->scale, maliashdr->scale_origin, (trivert2 *)((int) maliashdr + maliashdr->posedata) + ent->draw_pose * maliashdr->numverts, maliashdr->scale, maliashdr->scale_origin);
 256
 257         // prep the vertex array as early as possible
 258         if (gl_vertexarrays.value)
 259         {
 260                 qglVertexPointer(3, GL_FLOAT, 0, aliasvert);
 261                 glEnableClientState(GL_VERTEX_ARRAY);
 262         }
 263
 264         R_LightModel(maliashdr->numverts, org, color);
 265
 266         glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 267         glShadeModel(GL_SMOOTH);
 268         if (effects & EF_ADDITIVE)
 269         {
 270                 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive rendering
 271                 glEnable(GL_BLEND);
 272                 glDepthMask(0);
 273         }
 274         else if (alpha != 1.0)
 275         {
 276                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 277                 glEnable(GL_BLEND);
 278                 glDepthMask(0);
 279         }
 280         else
 281         {
 282                 glDisable(GL_BLEND);
 283                 glDepthMask(1);
 284         }
 285
 286         if (colormap >= 0)
 287         {
 288                 if (!skin[0] && !skin[1] && !skin[2] && !skin[3])
 289                         GL_DrawModelMesh(0, NULL, maliashdr);
 290                 else
 291                 {
 292                         int c;
 293                         if (skin[0])
 294                                 GL_DrawModelMesh(skin[0], aliasvertcolor, maliashdr);
 295                         if (skin[1])
 296                         {
 297                                 c = (colormap & 0xF) << 4;c += (c >= 128 && c < 224) ? 4 : 12; // 128-224 are backwards ranges
 298                                 R_TintModel(aliasvertcolor, aliasvertcolor2, maliashdr->numverts, (byte *) (&d_8to24table[c]));
 299                                 GL_DrawModelMesh(skin[1], aliasvertcolor2, maliashdr);
 300                         }
 301                         if (skin[2])
 302                         {
 303                                 c = colormap & 0xF0      ;c += (c >= 128 && c < 224) ? 4 : 12; // 128-224 are backwards ranges
 304                                 R_TintModel(aliasvertcolor, aliasvertcolor2, maliashdr->numverts, (byte *) (&d_8to24table[c]));
 305                                 GL_DrawModelMesh(skin[2], aliasvertcolor2, maliashdr);
 306                         }
 307                         if (skin[3]) GL_DrawModelMesh(skin[3], NULL, maliashdr);
 308                 }
 309         }
 310         else
 311         {
 312                 if (!skin[3] && !skin[4])
 313                         GL_DrawModelMesh(0, NULL, maliashdr);
 314                 else
 315                 {
 316                         if (skin[4]) GL_DrawModelMesh(skin[4], aliasvertcolor, maliashdr);
 317                         if (skin[3]) GL_DrawModelMesh(skin[3], NULL, maliashdr);
 318                 }
 319         }
 320
 321         if (fogenabled)
 322         {
 323                 vec3_t diff;
 324                 glDisable (GL_TEXTURE_2D);
 325                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 326                 glEnable (GL_BLEND);
 327                 glDepthMask(0); // disable zbuffer updates
 328
 329                 VectorSubtract(org, r_refdef.vieworg, diff);
 330                 glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
 331
 332                 if (gl_vertexarrays.value)
 333                 {
 334                         qglDrawElements(GL_TRIANGLES, maliashdr->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) maliashdr + maliashdr->tridata));
 335                 }
 336                 else
 337                 {
 338                         unsigned short *in;
 339                         in = (void *)((int) maliashdr + maliashdr->tridata);
 340                         glBegin(GL_TRIANGLES);
 341                         for (i = 0;i < maliashdr->numtris * 3;i++)
 342                                 glVertex3fv(&aliasvert[*in++ * 3]);
 343                         glEnd();
 344                 }
 345
 346                 glEnable (GL_TEXTURE_2D);
 347                 glColor3f (1,1,1);
 348         }
 349         if (gl_vertexarrays.value)
 350                 glDisableClientState(GL_VERTEX_ARRAY);
 351
 352         if (!fogenabled && r_shadows.value && !(effects & EF_ADDITIVE) && shadow)
 353         {
 354                 // flatten it to make a shadow
 355                 float *av = aliasvert + 2, l = lightspot[2] + 0.125;
 356                 av = aliasvert + 2;
 357                 for (i = 0;i < maliashdr->numverts;i++, av+=3)
 358                         if (*av > l)
 359                                 *av = l;
 360                 glDisable (GL_TEXTURE_2D);
 361                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 362                 glEnable (GL_BLEND);
 363                 glDepthMask(0); // disable zbuffer updates
 364                 glColor4f (0,0,0,0.5 * alpha);
 365
 366                 if (gl_vertexarrays.value)
 367                 {
 368                         qglVertexPointer(3, GL_FLOAT, 0, aliasvert);
 369                         glEnableClientState(GL_VERTEX_ARRAY);
 370                         qglDrawElements(GL_TRIANGLES, maliashdr->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) maliashdr + maliashdr->tridata));
 371                         glDisableClientState(GL_VERTEX_ARRAY);
 372                 }
 373                 else
 374                 {
 375                         unsigned short *in;
 376                         in = (void *)((int) maliashdr + maliashdr->tridata);
 377                         glBegin(GL_TRIANGLES);
 378                         for (i = 0;i < maliashdr->numtris * 3;i++)
 379                                 glVertex3fv(&aliasvert[*in++ * 3]);
 380                         glEnd();
 381                 }
 382
 383                 glEnable (GL_TEXTURE_2D);
 384                 glColor3f (1,1,1);
 385         }
 386
 387         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 388         glEnable (GL_BLEND);
 389         glDepthMask(1);
 390 }
 391
 392 /*
 393 =================
 394 R_DrawQ2AliasFrame
 395
 396 =================
 397 */
 398 void R_DrawQ2AliasFrame (md2mem_t *pheader, float alpha, vec3_t color, entity_t *ent, int shadow, vec3_t org, int frame, int skin, int effects, int flags)
 399 {
 400         int *order, count;
 401         float lerp;
 402         md2memframe_t *frame1, *frame2;
 403
 404         glBindTexture(GL_TEXTURE_2D, skin);
 405
 406         softwaretransformforentity(ent);
 407
 408         if ((frame >= pheader->num_frames) || (frame < 0))
 409         {
 410                 Con_DPrintf ("R_SetupQ2AliasFrame: no such frame %d\n", frame);
 411                 frame = 0;
 412         }
 413
 414         lerp = R_CalcAnimLerp(ent, frame, 10);
 415
 416         frame1 = (void *)((int) pheader + pheader->ofs_frames + (pheader->framesize * ent->draw_lastpose));
 417         frame2 = (void *)((int) pheader + pheader->ofs_frames + (pheader->framesize * ent->draw_pose));
 418         R_AliasLerpVerts(pheader->num_xyz, lerp, frame1->verts, frame1->scale, frame1->translate, frame2->verts, frame2->scale, frame2->translate);
 419
 420         R_LightModel(pheader->num_xyz, org, color);
 421
 422         if (gl_vertexarrays.value)
 423         {
 424                 // LordHavoc: big mess...
 425                 // using arrays only slightly, although it is enough to prevent duplicates
 426                 // (saving half the transforms)
 427                 qglVertexPointer(3, GL_FLOAT, 0, aliasvert);
 428                 qglColorPointer(4, GL_UNSIGNED_BYTE, 0, aliasvertcolor);
 429                 glEnableClientState(GL_VERTEX_ARRAY);
 430                 glEnableClientState(GL_COLOR_ARRAY);
 431
 432                 order = (int *)((int)pheader + pheader->ofs_glcmds);
 433                 while(1)
 434                 {
 435                         if (!(count = *order++))
 436                                 break;
 437                         if (count > 0)
 438                                 glBegin(GL_TRIANGLE_STRIP);
 439                         else
 440                         {
 441                                 glBegin(GL_TRIANGLE_FAN);
 442                                 count = -count;
 443                         }
 444                         do
 445                         {
 446                                 glTexCoord2f(((float *)order)[0], ((float *)order)[1]);
 447                                 qglArrayElement(order[2]);
 448                                 order += 3;
 449                         }
 450                         while (count--);
 451                 }
 452
 453                 glDisableClientState(GL_COLOR_ARRAY);
 454                 glDisableClientState(GL_VERTEX_ARRAY);
 455         }
 456         else
 457         {
 458                 order = (int *)((int)pheader + pheader->ofs_glcmds);
 459                 while(1)
 460                 {
 461                         if (!(count = *order++))
 462                                 break;
 463                         if (count > 0)
 464                                 glBegin(GL_TRIANGLE_STRIP);
 465                         else
 466                         {
 467                                 glBegin(GL_TRIANGLE_FAN);
 468                                 count = -count;
 469                         }
 470                         do
 471                         {
 472                                 glTexCoord2f(((float *)order)[0], ((float *)order)[1]);
 473                                 glColor4f(aliasvertcolor[order[2] * 4] * (1.0f / 255.0f), aliasvertcolor[order[2] * 4 + 1] * (1.0f / 255.0f), aliasvertcolor[order[2] * 4 + 2] * (1.0f / 255.0f), aliasvertcolor[order[2] * 4 + 3] * (1.0f / 255.0f));
 474                                 glVertex3fv(&aliasvert[order[2] * 3]);
 475                                 order += 3;
 476                         }
 477                         while (count--);
 478                 }
 479         }
 480
 481         if (fogenabled)
 482         {
 483                 glDisable (GL_TEXTURE_2D);
 484                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 485                 glEnable (GL_BLEND);
 486                 glDepthMask(0); // disable zbuffer updates
 487                 {
 488                         vec3_t diff;
 489                         VectorSubtract(org, r_refdef.vieworg, diff);
 490                         glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
 491                 }
 492
 493                 if (gl_vertexarrays.value)
 494                 {
 495                         // LordHavoc: big mess...
 496                         // using arrays only slightly, although it is enough to prevent duplicates
 497                         // (saving half the transforms)
 498                         qglVertexPointer(3, GL_FLOAT, 0, aliasvert);
 499                         glEnableClientState(GL_VERTEX_ARRAY);
 500
 501                         order = (int *)((int)pheader + pheader->ofs_glcmds);
 502                         while(1)
 503                         {
 504                                 if (!(count = *order++))
 505                                         break;
 506                                 if (count > 0)
 507                                         glBegin(GL_TRIANGLE_STRIP);
 508                                 else
 509                                 {
 510                                         glBegin(GL_TRIANGLE_FAN);
 511                                         count = -count;
 512                                 }
 513                                 do
 514                                 {
 515                                         qglArrayElement(order[2]);
 516                                         order += 3;
 517                                 }
 518                                 while (count--);
 519                         }
 520
 521                         glDisableClientState(GL_VERTEX_ARRAY);
 522                 }
 523                 else
 524                 {
 525                         order = (int *)((int)pheader + pheader->ofs_glcmds);
 526                         while(1)
 527                         {
 528                                 if (!(count = *order++))
 529                                         break;
 530                                 if (count > 0)
 531                                         glBegin(GL_TRIANGLE_STRIP);
 532                                 else
 533                                 {
 534                                         glBegin(GL_TRIANGLE_FAN);
 535                                         count = -count;
 536                                 }
 537                                 do
 538                                 {
 539                                         glVertex3fv(&aliasvert[order[2] * 3]);
 540                                         order += 3;
 541                                 }
 542                                 while (count--);
 543                         }
 544                 }
 545
 546                 glEnable (GL_TEXTURE_2D);
 547                 glColor3f (1,1,1);
 548         }
 549
 550         if (!fogenabled && r_shadows.value && !(effects & EF_ADDITIVE) && shadow)
 551         {
 552                 int i;
 553                 float *av = aliasvert + 2, l = lightspot[2] + 0.125;
 554                 av = aliasvert + 2;
 555                 for (i = 0;i < pheader->num_xyz;i++, av+=3)
 556                         if (*av > l)
 557                                 *av = l;
 558                 glDisable (GL_TEXTURE_2D);
 559                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 560                 glEnable (GL_BLEND);
 561                 glDepthMask(0); // disable zbuffer updates
 562                 glColor4f (0,0,0,0.5 * alpha);
 563
 564                 if (gl_vertexarrays.value)
 565                 {
 566                         qglVertexPointer(3, GL_FLOAT, 0, aliasvert);
 567                         glEnableClientState(GL_VERTEX_ARRAY);
 568
 569                         while(1)
 570                         {
 571                                 if (!(count = *order++))
 572                                         break;
 573                                 if (count > 0)
 574                                         glBegin(GL_TRIANGLE_STRIP);
 575                                 else
 576                                 {
 577                                         glBegin(GL_TRIANGLE_FAN);
 578                                         count = -count;
 579                                 }
 580                                 do
 581                                 {
 582                                         qglArrayElement(order[2]);
 583                                         order += 3;
 584                                 }
 585                                 while (count--);
 586                         }
 587
 588                         glDisableClientState(GL_VERTEX_ARRAY);
 589                 }
 590                 else
 591                 {
 592                         while(1)
 593                         {
 594                                 if (!(count = *order++))
 595                                         break;
 596                                 if (count > 0)
 597                                         glBegin(GL_TRIANGLE_STRIP);
 598                                 else
 599                                 {
 600                                         glBegin(GL_TRIANGLE_FAN);
 601                                         count = -count;
 602                                 }
 603                                 do
 604                                 {
 605                                         glVertex3fv(&aliasvert[order[2] * 3]);
 606                                         order += 3;
 607                                 }
 608                                 while (count--);
 609                         }
 610                 }
 611
 612                 glEnable (GL_TEXTURE_2D);
 613                 glColor3f (1,1,1);
 614         }
 615
 616         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 617         glEnable (GL_BLEND);
 618         glDepthMask(1);
 619 }
 620
 621 int modeldlightbits[8];
 622 extern int r_dlightframecount;
 623 extern void R_LightPoint (vec3_t color, vec3_t p);
 624
 625 /*
 626 =================
 627 R_DrawAliasModel
 628
 629 =================
 630 */
 631 void R_DrawAliasModel (entity_t *ent, int cull, float alpha, model_t *clmodel, int frame, int skin, vec3_t org, int effects, int flags, int colormap)
 632 {
 633         int                     i;
 634         vec3_t          mins, maxs, color;
 635         mleaf_t         *leaf;
 636         void            *modelheader;
 637         int                     *skinset;
 638
 639         if (alpha < (1.0 / 64.0))
 640                 return; // basically completely transparent
 641
 642         VectorAdd (org, clmodel->mins, mins);
 643         VectorAdd (org, clmodel->maxs, maxs);
 644
 645         if (cull && R_CullBox (mins, maxs))
 646                 return;
 647
 648         leaf = Mod_PointInLeaf (org, cl.worldmodel);
 649         if (leaf->dlightframe == r_dlightframecount)
 650                 for (i = 0;i < 8;i++)
 651                         modeldlightbits[i] = leaf->dlightbits[i];
 652         else
 653                 for (i = 0;i < 8;i++)
 654                         modeldlightbits[i] = 0;
 655
 656         // get lighting information
 657
 658         if ((flags & EF_FULLBRIGHT) || (effects & EF_FULLBRIGHT))
 659                 color[0] = color[1] = color[2] = 256;
 660         else
 661         {
 662                 // HACK HACK HACK -- no fullbright colors, so make torches full light
 663                 if (!strcmp (clmodel->name, "progs/flame2.mdl") || !strcmp (clmodel->name, "progs/flame.mdl") )
 664                         color[0] = color[1] = color[2] = 128;
 665                 else
 666                         R_LightPoint (color, org);
 667         }
 668
 669         glDisable(GL_ALPHA_TEST);
 670
 671         if (frame < 0 || frame >= clmodel->numframes)
 672         {
 673                 frame = 0;
 674                 Con_DPrintf("invalid skin number %d for model %s\n", frame, clmodel->name);
 675         }
 676
 677         if (skin < 0 || skin >= clmodel->numskins)
 678         {
 679                 skin = 0;
 680                 Con_DPrintf("invalid skin number %d for model %s\n", skin, clmodel->name);
 681         }
 682
 683         modelheader = Mod_Extradata (clmodel);
 684
 685         {
 686 //              int *skinanimrange = (int *) (clmodel->skinanimrange + (int) modelheader) + skin * 2;
 687 //              int *skinanim = (int *) (clmodel->skinanim + (int) modelheader);
 688                 int *skinanimrange = clmodel->skinanimrange + skin * 2;
 689                 int *skinanim = clmodel->skinanim;
 690                 i = skinanimrange[0];
 691                 if (skinanimrange[1] > 1) // animated
 692                         i += ((int) (cl.time * 10) % skinanimrange[1]);
 693                 skinset = skinanim + i*5;
 694         }
 695
 696         glEnable (GL_TEXTURE_2D);
 697
 698         c_alias_polys += clmodel->numtris;
 699         if (clmodel->aliastype == ALIASTYPE_MD2)
 700                 R_DrawQ2AliasFrame (modelheader, alpha, color, ent, ent != &cl.viewent, org, frame, skinset[0], effects, flags);
 701         else
 702                 R_DrawAliasFrame (modelheader, alpha, color, ent, ent != &cl.viewent, org, frame, skinset, colormap, effects, flags);
 703 }