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 //              qglVertexPointer(3, GL_FLOAT, 0, aliasvert);
 165 //              glEnableClientState(GL_VERTEX_ARRAY);
 166                 if (colors)
 167                 {
 168                         qglColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
 169                         glEnableClientState(GL_COLOR_ARRAY);
 170                 }
 171
 172                 qglTexCoordPointer(2, GL_FLOAT, 0, (void *)((int) maliashdr->texdata + (int) maliashdr));
 173                 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 174
 175                 qglDrawElements(GL_TRIANGLES, maliashdr->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) maliashdr + maliashdr->tridata));
 176
 177                 glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 178                 /*
 179                 // draw the front faces
 180                 qglTexCoordPointer(2, GL_FLOAT, 0, (void *)((int) paliashdr->texcoords + (int) paliashdr));
 181                 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 182                 qglDrawElements(GL_TRIANGLES, paliashdr->frontfaces * 3, GL_UNSIGNED_SHORT, (void *)((int) paliashdr->vertindices + (int) paliashdr));
 183                 glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 184
 185                 // draw the back faces
 186                 qglTexCoordPointer(2, GL_FLOAT, 0, (void *)((int) paliashdr->texcoords + sizeof(float[2]) * paliashdr->numverts + (int) paliashdr));
 187                 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 188                 qglDrawElements(GL_TRIANGLES, paliashdr->backfaces * 3, GL_UNSIGNED_SHORT, (void *)((int) paliashdr->vertindices + sizeof(unsigned short[3]) * paliashdr->frontfaces + (int) paliashdr));
 189                 glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 190                 */
 191
 192                 if (colors)
 193                         glDisableClientState(GL_COLOR_ARRAY);
 194 //              glDisableClientState(GL_VERTEX_ARRAY);
 195         }
 196         else
 197         {
 198                 unsigned short *in, index;
 199                 float *tex;
 200                 in = (void *)((int) maliashdr + maliashdr->tridata);
 201                 glBegin(GL_TRIANGLES);
 202                 tex = (void *)((int) maliashdr + maliashdr->texdata);
 203                 for (i = 0;i < maliashdr->numtris * 3;i++)
 204                 {
 205                         index = *in++;
 206                         glTexCoord2f(tex[index*2], tex[index*2+1]);
 207                         if (colors)
 208                                 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));
 209                         glVertex3fv(&aliasvert[index*3]);
 210                 }
 211                 glEnd();
 212                 /*
 213                 in = (void *)((int) paliashdr->vertindices + (int) paliashdr);
 214                 glBegin(GL_TRIANGLES);
 215                 // draw the front faces
 216                 tex = (void *)((int) paliashdr->texcoords + (int) paliashdr);
 217                 //if (isG200)
 218                 //{
 219                         for (i = 0;i < paliashdr->frontfaces * 3;i++)
 220                         {
 221                                 index = *in++;
 222                                 glTexCoord2f(tex[index*2], tex[index*2+1]);
 223                                 if (colors)
 224                                         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));
 225                                 glVertex3fv(&aliasvert[index*3]);
 226                         }
 227                 */
 228                 /*
 229                 }
 230                 else
 231                 {
 232                         for (i = 0;i < paliashdr->frontfaces * 3;i++)
 233                         {
 234                                 index = *in++;
 235                                 glTexCoord2f(tex[index*2], tex[index*2+1]);
 236                                 glColor4ub(colors[index*4], colors[index*4+1], colors[index*4+2], colors[index*4+3]);
 237                                 glVertex3fv(&aliasvert[index*3]);
 238                         }
 239                 }
 240                 */
 241                 /*
 242                 // draw the back faces
 243                 tex += 2 * paliashdr->numverts;
 244                 //if (isG200)
 245                 //{
 246                         for (i = 0;i < paliashdr->backfaces * 3;i++)
 247                         {
 248                                 index = *in++;
 249                                 glTexCoord2f(tex[index*2], tex[index*2+1]);
 250                                 if (colors)
 251                                         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));
 252                                 glVertex3fv(&aliasvert[index*3]);
 253                         }
 254                 */
 255                 /*
 256                 }
 257                 else
 258                 {
 259                         for (i = 0;i < paliashdr->backfaces * 3;i++)
 260                         {
 261                                 index = *in++;
 262                                 glTexCoord2f(tex[index*2], tex[index*2+1]);
 263                                 glColor4ub(colors[index*4], colors[index*4+1], colors[index*4+2], colors[index*4+3]);
 264                                 glVertex3fv(&aliasvert[index*3]);
 265                         }
 266                 }
 267                 */
 268                 /*
 269                 glEnd();
 270                 */
 271         }
 272         // leave it in a state for additional passes
 273         glDepthMask(0);
 274         glEnable(GL_BLEND);
 275         glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive
 276 }
 277
 278 void R_TintModel(byte *in, byte *out, int verts, byte *color)
 279 {
 280         int i;
 281         byte r = color[0];
 282         byte g = color[1];
 283         byte b = color[2];
 284         for (i = 0;i < verts;i++)
 285         {
 286                 out[0] = (byte) ((in[0] * r) >> 8);
 287                 out[1] = (byte) ((in[1] * g) >> 8);
 288                 out[2] = (byte) ((in[2] * b) >> 8);
 289                 out[3] =          in[3];
 290                 in += 4;
 291                 out += 4;
 292         }
 293 }
 294
 295 /*
 296 =================
 297 R_DrawAliasFrame
 298
 299 =================
 300 */
 301 extern vec3_t lightspot;
 302 void R_LightModel(int numverts, vec3_t center, vec3_t basecolor);
 303 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)
 304 {
 305         int             i, pose;
 306         float   lerpscale, lerp;
 307         maliasframe_t *frameinfo;
 308
 309         softwaretransformforentity(ent);
 310
 311         if ((frame >= maliashdr->numframes) || (frame < 0))
 312         {
 313                 Con_DPrintf ("R_AliasSetupFrame: no such frame %d\n", frame);
 314                 frame = 0;
 315         }
 316
 317         frameinfo = ((maliasframe_t *)((int) maliashdr + maliashdr->framedata)) + frame;
 318         pose = frameinfo->start;
 319
 320         if (frameinfo->length > 1)
 321         {
 322                 lerpscale = frameinfo->rate;
 323                 pose += (int)(cl.time * frameinfo->rate) % frameinfo->length;
 324         }
 325         else
 326                 lerpscale = 10.0f;
 327
 328         lerp = R_CalcAnimLerp(ent, pose, lerpscale);
 329
 330         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);
 331
 332         // prep the vertex array as early as possible
 333         if (gl_vertexarrays.value)
 334         {
 335                 qglVertexPointer(3, GL_FLOAT, 0, aliasvert);
 336                 glEnableClientState(GL_VERTEX_ARRAY);
 337         }
 338
 339         R_LightModel(maliashdr->numverts, org, color);
 340
 341         glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 342         glShadeModel(GL_SMOOTH);
 343         if (effects & EF_ADDITIVE)
 344         {
 345                 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive rendering
 346                 glEnable(GL_BLEND);
 347                 glDepthMask(0);
 348         }
 349         else if (alpha != 1.0)
 350         {
 351                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 352                 glEnable(GL_BLEND);
 353                 glDepthMask(0);
 354         }
 355         else
 356         {
 357                 glDisable(GL_BLEND);
 358                 glDepthMask(1);
 359         }
 360
 361         if (colormap >= 0)
 362         {
 363                 if (!skin[0] && !skin[1] && !skin[2] && !skin[3])
 364                         GL_DrawModelMesh(0, NULL, maliashdr);
 365                 else
 366                 {
 367                         int c;
 368                         if (skin[0])
 369                                 GL_DrawModelMesh(skin[0], aliasvertcolor, maliashdr);
 370                         if (skin[1])
 371                         {
 372                                 c = (colormap & 0xF) << 4;c += (c >= 128 && c < 224) ? 4 : 12; // 128-224 are backwards ranges
 373                                 R_TintModel(aliasvertcolor, aliasvertcolor2, maliashdr->numverts, (byte *) (&d_8to24table[c]));
 374                                 GL_DrawModelMesh(skin[1], aliasvertcolor2, maliashdr);
 375                         }
 376                         if (skin[2])
 377                         {
 378                                 c = colormap & 0xF0      ;c += (c >= 128 && c < 224) ? 4 : 12; // 128-224 are backwards ranges
 379                                 R_TintModel(aliasvertcolor, aliasvertcolor2, maliashdr->numverts, (byte *) (&d_8to24table[c]));
 380                                 GL_DrawModelMesh(skin[2], aliasvertcolor2, maliashdr);
 381                         }
 382                         if (skin[3]) GL_DrawModelMesh(skin[3], NULL, maliashdr);
 383                 }
 384         }
 385         else
 386         {
 387                 if (!skin[3] && !skin[4])
 388                         GL_DrawModelMesh(0, NULL, maliashdr);
 389                 else
 390                 {
 391                         if (skin[4]) GL_DrawModelMesh(skin[4], aliasvertcolor, maliashdr);
 392                         if (skin[3]) GL_DrawModelMesh(skin[3], NULL, maliashdr);
 393                 }
 394         }
 395
 396         if (fogenabled)
 397         {
 398                 vec3_t diff;
 399                 glDisable (GL_TEXTURE_2D);
 400                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 401                 glEnable (GL_BLEND);
 402                 glDepthMask(0); // disable zbuffer updates
 403
 404                 VectorSubtract(org, r_refdef.vieworg, diff);
 405                 glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
 406
 407                 if (gl_vertexarrays.value)
 408                 {
 409 //                      qglVertexPointer(3, GL_FLOAT, 0, aliasvert);
 410 //                      glEnableClientState(GL_VERTEX_ARRAY);
 411                         qglDrawElements(GL_TRIANGLES, maliashdr->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) maliashdr + maliashdr->tridata));
 412 //                      glDisableClientState(GL_VERTEX_ARRAY);
 413                 }
 414                 else
 415                 {
 416                         unsigned short *in;
 417                         in = (void *)((int) maliashdr + maliashdr->tridata);
 418                         glBegin(GL_TRIANGLES);
 419                         for (i = 0;i < maliashdr->numtris * 3;i++)
 420                                 glVertex3fv(&aliasvert[*in++ * 3]);
 421                         glEnd();
 422                 }
 423
 424                 glEnable (GL_TEXTURE_2D);
 425                 glColor3f (1,1,1);
 426         }
 427         if (gl_vertexarrays.value)
 428                 glDisableClientState(GL_VERTEX_ARRAY);
 429
 430         if (!fogenabled && r_shadows.value && !(effects & EF_ADDITIVE) && shadow)
 431         {
 432                 // flatten it to make a shadow
 433                 float *av = aliasvert + 2, l = lightspot[2] + 0.125;
 434                 av = aliasvert + 2;
 435                 for (i = 0;i < maliashdr->numverts;i++, av+=3)
 436                         if (*av > l)
 437                                 *av = l;
 438                 glDisable (GL_TEXTURE_2D);
 439                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 440                 glEnable (GL_BLEND);
 441                 glDepthMask(0); // disable zbuffer updates
 442                 glColor4f (0,0,0,0.5 * alpha);
 443
 444                 if (gl_vertexarrays.value)
 445                 {
 446                         qglVertexPointer(3, GL_FLOAT, 0, aliasvert);
 447                         glEnableClientState(GL_VERTEX_ARRAY);
 448                         qglDrawElements(GL_TRIANGLES, maliashdr->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) maliashdr + maliashdr->tridata));
 449                         glDisableClientState(GL_VERTEX_ARRAY);
 450                 }
 451                 else
 452                 {
 453                         unsigned short *in;
 454                         in = (void *)((int) maliashdr + maliashdr->tridata);
 455                         glBegin(GL_TRIANGLES);
 456                         for (i = 0;i < maliashdr->numtris * 3;i++)
 457                                 glVertex3fv(&aliasvert[*in++ * 3]);
 458                         glEnd();
 459                 }
 460
 461                 glEnable (GL_TEXTURE_2D);
 462                 glColor3f (1,1,1);
 463         }
 464
 465         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 466         glEnable (GL_BLEND);
 467         glDepthMask(1);
 468 }
 469
 470 /*
 471 =================
 472 R_DrawQ2AliasFrame
 473
 474 =================
 475 */
 476 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)
 477 {
 478         int *order, count;
 479         float lerp;
 480         md2memframe_t *frame1, *frame2;
 481
 482         glBindTexture(GL_TEXTURE_2D, skin);
 483
 484         softwaretransformforentity(ent);
 485
 486         if ((frame >= pheader->num_frames) || (frame < 0))
 487         {
 488                 Con_DPrintf ("R_SetupQ2AliasFrame: no such frame %d\n", frame);
 489                 frame = 0;
 490         }
 491
 492         lerp = R_CalcAnimLerp(ent, frame, 10);
 493
 494         frame1 = (void *)((int) pheader + pheader->ofs_frames + (pheader->framesize * ent->draw_lastpose));
 495         frame2 = (void *)((int) pheader + pheader->ofs_frames + (pheader->framesize * ent->draw_pose));
 496         R_AliasLerpVerts(pheader->num_xyz, lerp, frame1->verts, frame1->scale, frame1->translate, frame2->verts, frame2->scale, frame2->translate);
 497
 498         R_LightModel(pheader->num_xyz, org, color);
 499
 500         if (gl_vertexarrays.value)
 501         {
 502                 // LordHavoc: big mess...
 503                 // using arrays only slightly, although it is enough to prevent duplicates
 504                 // (saving half the transforms)
 505                 qglVertexPointer(3, GL_FLOAT, 0, aliasvert);
 506                 qglColorPointer(4, GL_UNSIGNED_BYTE, 0, aliasvertcolor);
 507                 glEnableClientState(GL_VERTEX_ARRAY);
 508                 glEnableClientState(GL_COLOR_ARRAY);
 509
 510                 order = (int *)((int)pheader + pheader->ofs_glcmds);
 511                 while(1)
 512                 {
 513                         if (!(count = *order++))
 514                                 break;
 515                         if (count > 0)
 516                                 glBegin(GL_TRIANGLE_STRIP);
 517                         else
 518                         {
 519                                 glBegin(GL_TRIANGLE_FAN);
 520                                 count = -count;
 521                         }
 522                         do
 523                         {
 524                                 glTexCoord2f(((float *)order)[0], ((float *)order)[1]);
 525                                 qglArrayElement(order[2]);
 526                                 order += 3;
 527                         }
 528                         while (count--);
 529                 }
 530
 531                 glDisableClientState(GL_COLOR_ARRAY);
 532                 glDisableClientState(GL_VERTEX_ARRAY);
 533         }
 534         else
 535         {
 536                 order = (int *)((int)pheader + pheader->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                         //if (isG200)
 549                         //{
 550                                 do
 551                                 {
 552                                         glTexCoord2f(((float *)order)[0], ((float *)order)[1]);
 553                                         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));
 554                                         glVertex3fv(&aliasvert[order[2] * 3]);
 555                                         order += 3;
 556                                 }
 557                                 while (count--);
 558                         /*
 559                         }
 560                         else
 561                         {
 562                                 do
 563                                 {
 564                                         glTexCoord2f(((float *)order)[0], ((float *)order)[1]);
 565                                         glColor4ub(aliasvertcolor[order[2] * 4], aliasvertcolor[order[2] * 4 + 1], aliasvertcolor[order[2] * 4 + 2], aliasvertcolor[order[2] * 4 + 3]);
 566                                         glVertex3fv(&aliasvert[order[2] * 3]);
 567                                         order += 3;
 568                                 }
 569                                 while (count--);
 570                         }
 571                         */
 572                 }
 573         }
 574
 575         if (fogenabled)
 576         {
 577                 glDisable (GL_TEXTURE_2D);
 578                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 579                 glEnable (GL_BLEND);
 580                 glDepthMask(0); // disable zbuffer updates
 581                 {
 582                         vec3_t diff;
 583                         VectorSubtract(org, r_refdef.vieworg, diff);
 584                         glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
 585                 }
 586
 587                 if (gl_vertexarrays.value)
 588                 {
 589                         // LordHavoc: big mess...
 590                         // using arrays only slightly, although it is enough to prevent duplicates
 591                         // (saving half the transforms)
 592                         qglVertexPointer(3, GL_FLOAT, 0, aliasvert);
 593                         glEnableClientState(GL_VERTEX_ARRAY);
 594
 595                         order = (int *)((int)pheader + pheader->ofs_glcmds);
 596                         while(1)
 597                         {
 598                                 if (!(count = *order++))
 599                                         break;
 600                                 if (count > 0)
 601                                         glBegin(GL_TRIANGLE_STRIP);
 602                                 else
 603                                 {
 604                                         glBegin(GL_TRIANGLE_FAN);
 605                                         count = -count;
 606                                 }
 607                                 do
 608                                 {
 609                                         qglArrayElement(order[2]);
 610                                         order += 3;
 611                                 }
 612                                 while (count--);
 613                         }
 614
 615                         glDisableClientState(GL_VERTEX_ARRAY);
 616                 }
 617                 else
 618                 {
 619                         order = (int *)((int)pheader + pheader->ofs_glcmds);
 620                         while(1)
 621                         {
 622                                 if (!(count = *order++))
 623                                         break;
 624                                 if (count > 0)
 625                                         glBegin(GL_TRIANGLE_STRIP);
 626                                 else
 627                                 {
 628                                         glBegin(GL_TRIANGLE_FAN);
 629                                         count = -count;
 630                                 }
 631                                 do
 632                                 {
 633                                         glVertex3fv(&aliasvert[order[2] * 3]);
 634                                         order += 3;
 635                                 }
 636                                 while (count--);
 637                         }
 638                 }
 639
 640                 glEnable (GL_TEXTURE_2D);
 641                 glColor3f (1,1,1);
 642         }
 643
 644         if (!fogenabled && r_shadows.value && !(effects & EF_ADDITIVE) && shadow)
 645         {
 646                 int i;
 647                 float *av = aliasvert + 2, l = lightspot[2] + 0.125;
 648                 av = aliasvert + 2;
 649                 for (i = 0;i < pheader->num_xyz;i++, av+=3)
 650                         if (*av > l)
 651                                 *av = l;
 652                 glDisable (GL_TEXTURE_2D);
 653                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 654                 glEnable (GL_BLEND);
 655                 glDepthMask(0); // disable zbuffer updates
 656                 glColor4f (0,0,0,0.5 * alpha);
 657
 658                 if (gl_vertexarrays.value)
 659                 {
 660                         qglVertexPointer(3, GL_FLOAT, 0, aliasvert);
 661                         glEnableClientState(GL_VERTEX_ARRAY);
 662
 663                         while(1)
 664                         {
 665                                 if (!(count = *order++))
 666                                         break;
 667                                 if (count > 0)
 668                                         glBegin(GL_TRIANGLE_STRIP);
 669                                 else
 670                                 {
 671                                         glBegin(GL_TRIANGLE_FAN);
 672                                         count = -count;
 673                                 }
 674                                 do
 675                                 {
 676                                         qglArrayElement(order[2]);
 677                                         order += 3;
 678                                 }
 679                                 while (count--);
 680                         }
 681
 682                         glDisableClientState(GL_VERTEX_ARRAY);
 683                 }
 684                 else
 685                 {
 686                         while(1)
 687                         {
 688                                 if (!(count = *order++))
 689                                         break;
 690                                 if (count > 0)
 691                                         glBegin(GL_TRIANGLE_STRIP);
 692                                 else
 693                                 {
 694                                         glBegin(GL_TRIANGLE_FAN);
 695                                         count = -count;
 696                                 }
 697                                 do
 698                                 {
 699                                         glVertex3fv(&aliasvert[order[2] * 3]);
 700                                         order += 3;
 701                                 }
 702                                 while (count--);
 703                         }
 704                 }
 705
 706                 glEnable (GL_TEXTURE_2D);
 707                 glColor3f (1,1,1);
 708         }
 709
 710         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 711         glEnable (GL_BLEND);
 712         glDepthMask(1);
 713 }
 714
 715 int modeldlightbits[8];
 716 extern int r_dlightframecount;
 717 extern void R_LightPoint (vec3_t color, vec3_t p);
 718
 719 /*
 720 =================
 721 R_DrawAliasModel
 722
 723 =================
 724 */
 725 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)
 726 {
 727         int                     i;
 728         vec3_t          mins, maxs, color;
 729 //      aliashdr_t      *paliashdr = NULL;
 730 //      md2mem_t        *pheader = NULL;
 731         mleaf_t         *leaf;
 732         void            *modelheader;
 733         int                     *skinset;
 734
 735         if (alpha < (1.0 / 64.0))
 736                 return; // basically completely transparent
 737
 738         VectorAdd (org, clmodel->mins, mins);
 739         VectorAdd (org, clmodel->maxs, maxs);
 740
 741         if (cull && R_CullBox (mins, maxs))
 742                 return;
 743
 744         leaf = Mod_PointInLeaf (org, cl.worldmodel);
 745         if (leaf->dlightframe == r_dlightframecount)
 746                 for (i = 0;i < 8;i++)
 747                         modeldlightbits[i] = leaf->dlightbits[i];
 748         else
 749                 for (i = 0;i < 8;i++)
 750                         modeldlightbits[i] = 0;
 751
 752         // get lighting information
 753
 754         if ((flags & EF_FULLBRIGHT) || (effects & EF_FULLBRIGHT))
 755                 color[0] = color[1] = color[2] = 256;
 756         else
 757         {
 758                 // HACK HACK HACK -- no fullbright colors, so make torches full light
 759                 if (!strcmp (clmodel->name, "progs/flame2.mdl") || !strcmp (clmodel->name, "progs/flame.mdl") )
 760                         color[0] = color[1] = color[2] = 128;
 761                 else
 762                         R_LightPoint (color, org);
 763         }
 764
 765         glDisable(GL_ALPHA_TEST);
 766
 767         if (frame < 0 || frame >= clmodel->numframes)
 768         {
 769                 frame = 0;
 770                 Con_DPrintf("invalid skin number %d for model %s\n", frame, clmodel->name);
 771         }
 772
 773         if (skin < 0 || skin >= clmodel->numskins)
 774         {
 775                 skin = 0;
 776                 Con_DPrintf("invalid skin number %d for model %s\n", skin, clmodel->name);
 777         }
 778
 779         modelheader = Mod_Extradata (clmodel);
 780
 781         {
 782 //              int *skinanimrange = (int *) (clmodel->skinanimrange + (int) modelheader) + skin * 2;
 783 //              int *skinanim = (int *) (clmodel->skinanim + (int) modelheader);
 784                 int *skinanimrange = clmodel->skinanimrange + skin * 2;
 785                 int *skinanim = clmodel->skinanim;
 786                 i = skinanimrange[0];
 787                 if (skinanimrange[1] > 1) // animated
 788                         i += ((int) (cl.time * 10) % skinanimrange[1]);
 789                 skinset = skinanim + i*5;
 790         }
 791
 792 //      glBindTexture(GL_TEXTURE_2D, paliashdr->gl_texturenum[skin][(int)(cl.time*10) & 3]);
 793 //      glBindTexture(GL_TEXTURE_2D, pheader->gl_texturenum[skin]);
 794
 795         glEnable (GL_TEXTURE_2D);
 796
 797         c_alias_polys += clmodel->numtris;
 798         if (clmodel->aliastype == ALIASTYPE_MD2)
 799                 R_DrawQ2AliasFrame (modelheader, alpha, color, ent, ent != &cl.viewent, org, frame, skinset[0], effects, flags);
 800         else
 801                 R_DrawAliasFrame (modelheader, alpha, color, ent, ent != &cl.viewent, org, frame, skinset, colormap, effects, flags);
 802 }