gl_models.c

   1
   2 #include "quakedef.h"
   3
   4 cvar_t gl_transform = {"gl_transform", "1"};
   5 cvar_t gl_lockarrays = {"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 void makechrometexture(void)
  56 {
  57         int i;
  58         byte noise[64*64];
  59         byte data[64*64][4];
  60
  61         fractalnoise(noise, 64, 8);
  62
  63         // convert to RGBA data
  64         for (i = 0;i < 64*64;i++)
  65         {
  66                 data[i][0] = data[i][1] = data[i][2] = noise[i];
  67                 data[i][3] = 255;
  68         }
  69
  70         chrometexture = R_LoadTexture ("chrometexture", 64, 64, &data[0][0], TEXF_MIPMAP | TEXF_RGBA | TEXF_PRECACHE);
  71 }
  72
  73 void gl_models_start(void)
  74 {
  75         // allocate vertex processing arrays
  76         aliasvert = qmalloc(sizeof(float[MD2MAX_VERTS][3]));
  77         aliasvertnorm = qmalloc(sizeof(float[MD2MAX_VERTS][3]));
  78         aliasvertcolor = qmalloc(sizeof(byte[MD2MAX_VERTS][4]));
  79         aliasvertcolor2 = qmalloc(sizeof(byte[MD2MAX_VERTS][4])); // used temporarily for tinted coloring
  80         zymbonepose = qmalloc(sizeof(zymbonematrix[256]));
  81         aliasvertusage = qmalloc(sizeof(int[MD2MAX_VERTS]));
  82         makechrometexture();
  83 }
  84
  85 void gl_models_shutdown(void)
  86 {
  87         qfree(aliasvert);
  88         qfree(aliasvertnorm);
  89         qfree(aliasvertcolor);
  90         qfree(aliasvertcolor2);
  91         qfree(zymbonepose);
  92         qfree(aliasvertusage);
  93 }
  94
  95 void gl_models_newmap(void)
  96 {
  97 }
  98
  99 void GL_Models_Init(void)
 100 {
 101         Cvar_RegisterVariable(&gl_transform);
 102         Cvar_RegisterVariable(&gl_lockarrays);
 103
 104         R_RegisterModule("GL_Models", gl_models_start, gl_models_shutdown, gl_models_newmap);
 105 }
 106
 107 void R_AliasTransformVerts(int vertcount)
 108 {
 109         int i;
 110         vec3_t point, matrix_x, matrix_y, matrix_z;
 111         float *av, *avn;
 112         av = aliasvert;
 113         avn = aliasvertnorm;
 114         matrix_x[0] = softwaretransform_x[0] * softwaretransform_scale;
 115         matrix_x[1] = softwaretransform_y[0] * softwaretransform_scale;
 116         matrix_x[2] = softwaretransform_z[0] * softwaretransform_scale;
 117         matrix_y[0] = softwaretransform_x[1] * softwaretransform_scale;
 118         matrix_y[1] = softwaretransform_y[1] * softwaretransform_scale;
 119         matrix_y[2] = softwaretransform_z[1] * softwaretransform_scale;
 120         matrix_z[0] = softwaretransform_x[2] * softwaretransform_scale;
 121         matrix_z[1] = softwaretransform_y[2] * softwaretransform_scale;
 122         matrix_z[2] = softwaretransform_z[2] * softwaretransform_scale;
 123         for (i = 0;i < vertcount;i++)
 124         {
 125                 // rotate, scale, and translate the vertex locations
 126                 VectorCopy(av, point);
 127                 av[0] = DotProduct(point, matrix_x) + softwaretransform_offset[0];
 128                 av[1] = DotProduct(point, matrix_y) + softwaretransform_offset[1];
 129                 av[2] = DotProduct(point, matrix_z) + softwaretransform_offset[2];
 130                 // rotate the normals
 131                 VectorCopy(avn, point);
 132                 avn[0] = point[0] * softwaretransform_x[0] + point[1] * softwaretransform_y[0] + point[2] * softwaretransform_z[0];
 133                 avn[1] = point[0] * softwaretransform_x[1] + point[1] * softwaretransform_y[1] + point[2] * softwaretransform_z[1];
 134                 avn[2] = point[0] * softwaretransform_x[2] + point[1] * softwaretransform_y[2] + point[2] * softwaretransform_z[2];
 135                 av += 3;
 136                 avn += 3;
 137         }
 138 }
 139
 140 void R_AliasLerpVerts(int vertcount,
 141                                           float lerp1, trivertx_t *verts1, vec3_t fscale1, vec3_t translate1,
 142                                           float lerp2, trivertx_t *verts2, vec3_t fscale2, vec3_t translate2,
 143                                           float lerp3, trivertx_t *verts3, vec3_t fscale3, vec3_t translate3,
 144                                           float lerp4, trivertx_t *verts4, vec3_t fscale4, vec3_t translate4)
 145 {
 146         int i;
 147         vec3_t scale1, scale2, scale3, scale4, translate;
 148         float *n1, *n2, *n3, *n4;
 149         float *av, *avn;
 150         av = aliasvert;
 151         avn = aliasvertnorm;
 152         VectorScaleQuick(fscale1, lerp1, scale1);
 153         if (lerp2)
 154         {
 155                 VectorScaleQuick(fscale2, lerp2, scale2);
 156                 if (lerp3)
 157                 {
 158                         VectorScaleQuick(fscale3, lerp3, scale3);
 159                         if (lerp4)
 160                         {
 161                                 VectorScaleQuick(fscale4, lerp4, scale4);
 162                                 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3 + translate4[0] * lerp4;
 163                                 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3 + translate4[1] * lerp4;
 164                                 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3 + translate4[2] * lerp4;
 165                                 // generate vertices
 166                                 for (i = 0;i < vertcount;i++)
 167                                 {
 168                                         av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + verts4->v[0] * scale4[0] + translate[0];
 169                                         av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + verts4->v[1] * scale4[1] + translate[1];
 170                                         av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + verts4->v[2] * scale4[2] + translate[2];
 171                                         n1 = m_bytenormals[verts1->lightnormalindex];
 172                                         n2 = m_bytenormals[verts2->lightnormalindex];
 173                                         n3 = m_bytenormals[verts3->lightnormalindex];
 174                                         n4 = m_bytenormals[verts4->lightnormalindex];
 175                                         avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3 + n4[0] * lerp4;
 176                                         avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3 + n4[1] * lerp4;
 177                                         avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3 + n4[2] * lerp4;
 178                                         av += 3;
 179                                         avn += 3;
 180                                         verts1++;verts2++;verts3++;verts4++;
 181                                 }
 182                         }
 183                         else
 184                         {
 185                                 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3;
 186                                 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3;
 187                                 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3;
 188                                 // generate vertices
 189                                 for (i = 0;i < vertcount;i++)
 190                                 {
 191                                         av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + translate[0];
 192                                         av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + translate[1];
 193                                         av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + translate[2];
 194                                         n1 = m_bytenormals[verts1->lightnormalindex];
 195                                         n2 = m_bytenormals[verts2->lightnormalindex];
 196                                         n3 = m_bytenormals[verts3->lightnormalindex];
 197                                         avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3;
 198                                         avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3;
 199                                         avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3;
 200                                         av += 3;
 201                                         avn += 3;
 202                                         verts1++;verts2++;verts3++;
 203                                 }
 204                         }
 205                 }
 206                 else
 207                 {
 208                         translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2;
 209                         translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2;
 210                         translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2;
 211                         // generate vertices
 212                         for (i = 0;i < vertcount;i++)
 213                         {
 214                                 av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + translate[0];
 215                                 av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + translate[1];
 216                                 av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + translate[2];
 217                                 n1 = m_bytenormals[verts1->lightnormalindex];
 218                                 n2 = m_bytenormals[verts2->lightnormalindex];
 219                                 avn[0] = n1[0] * lerp1 + n2[0] * lerp2;
 220                                 avn[1] = n1[1] * lerp1 + n2[1] * lerp2;
 221                                 avn[2] = n1[2] * lerp1 + n2[2] * lerp2;
 222                                 av += 3;
 223                                 avn += 3;
 224                                 verts1++;verts2++;
 225                         }
 226                 }
 227         }
 228         else
 229         {
 230                 translate[0] = translate1[0] * lerp1;
 231                 translate[1] = translate1[1] * lerp1;
 232                 translate[2] = translate1[2] * lerp1;
 233                 // generate vertices
 234                 if (lerp1 != 1)
 235                 {
 236                         // general but almost never used case
 237                         for (i = 0;i < vertcount;i++)
 238                         {
 239                                 av[0] = verts1->v[0] * scale1[0] + translate[0];
 240                                 av[1] = verts1->v[1] * scale1[1] + translate[1];
 241                                 av[2] = verts1->v[2] * scale1[2] + translate[2];
 242                                 n1 = m_bytenormals[verts1->lightnormalindex];
 243                                 avn[0] = n1[0] * lerp1;
 244                                 avn[1] = n1[1] * lerp1;
 245                                 avn[2] = n1[2] * lerp1;
 246                                 av += 3;
 247                                 avn += 3;
 248                                 verts1++;
 249                         }
 250                 }
 251                 else
 252                 {
 253                         // fast normal case
 254                         for (i = 0;i < vertcount;i++)
 255                         {
 256                                 av[0] = verts1->v[0] * scale1[0] + translate[0];
 257                                 av[1] = verts1->v[1] * scale1[1] + translate[1];
 258                                 av[2] = verts1->v[2] * scale1[2] + translate[2];
 259                                 VectorCopy(m_bytenormals[verts1->lightnormalindex], avn);
 260                                 av += 3;
 261                                 avn += 3;
 262                                 verts1++;
 263                         }
 264                 }
 265         }
 266 }
 267
 268 void GL_DrawModelMesh(rtexture_t *skin, byte *colors, maliashdr_t *maliashdr)
 269 {
 270         if (!r_render.value)
 271                 return;
 272         glBindTexture(GL_TEXTURE_2D, R_GetTexture(skin));
 273         if (!colors)
 274         {
 275                 if (lighthalf)
 276                         glColor3f(0.5f, 0.5f, 0.5f);
 277                 else
 278                         glColor3f(1.0f, 1.0f, 1.0f);
 279         }
 280         if (colors)
 281         {
 282                 glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
 283                 glEnableClientState(GL_COLOR_ARRAY);
 284         }
 285
 286         glDrawElements(GL_TRIANGLES, maliashdr->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) maliashdr + maliashdr->tridata));
 287
 288         if (colors)
 289                 glDisableClientState(GL_COLOR_ARRAY);
 290         // leave it in a state for additional passes
 291         glDepthMask(0);
 292         glEnable(GL_BLEND);
 293         glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive
 294 }
 295
 296 void R_TintModel(byte *in, byte *out, int verts, byte *color)
 297 {
 298         int i;
 299         byte r = color[0];
 300         byte g = color[1];
 301         byte b = color[2];
 302         for (i = 0;i < verts;i++)
 303         {
 304                 out[0] = (byte) ((in[0] * r) >> 8);
 305                 out[1] = (byte) ((in[1] * g) >> 8);
 306                 out[2] = (byte) ((in[2] * b) >> 8);
 307                 out[3] =          in[3];
 308                 in += 4;
 309                 out += 4;
 310         }
 311 }
 312
 313 /*
 314 =================
 315 R_DrawAliasFrame
 316
 317 =================
 318 */
 319 void R_LightModel(entity_t *ent, int numverts, vec3_t center, vec3_t basecolor);
 320 void R_DrawAliasFrame (maliashdr_t *maliashdr, float alpha, vec3_t color, entity_t *ent, int shadow, vec3_t org, vec3_t angles, vec_t scale, frameblend_t *blend, rtexture_t **skin, int colormap, int effects, int flags)
 321 {
 322         if (gl_transform.value)
 323         {
 324                 if (r_render.value)
 325                 {
 326                         glPushMatrix();
 327                         GL_SetupModelTransform(org, angles, scale);
 328                 }
 329         }
 330         // always needed, for model lighting
 331         softwaretransformforentity(ent);
 332
 333         R_AliasLerpVerts(maliashdr->numverts,
 334                 blend[0].lerp, ((trivertx_t *)((int) maliashdr + maliashdr->posedata)) + blend[0].frame * maliashdr->numverts, maliashdr->scale, maliashdr->scale_origin,
 335                 blend[1].lerp, ((trivertx_t *)((int) maliashdr + maliashdr->posedata)) + blend[1].frame * maliashdr->numverts, maliashdr->scale, maliashdr->scale_origin,
 336                 blend[2].lerp, ((trivertx_t *)((int) maliashdr + maliashdr->posedata)) + blend[2].frame * maliashdr->numverts, maliashdr->scale, maliashdr->scale_origin,
 337                 blend[3].lerp, ((trivertx_t *)((int) maliashdr + maliashdr->posedata)) + blend[3].frame * maliashdr->numverts, maliashdr->scale, maliashdr->scale_origin);
 338         if (!gl_transform.value)
 339                 R_AliasTransformVerts(maliashdr->numverts);
 340
 341         // prep the vertex array as early as possible
 342         if (r_render.value)
 343         {
 344                 glVertexPointer(3, GL_FLOAT, 0, aliasvert);
 345                 glEnableClientState(GL_VERTEX_ARRAY);
 346                 glTexCoordPointer(2, GL_FLOAT, 0, (void *)((int) maliashdr->texdata + (int) maliashdr));
 347                 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 348                 GL_LockArray(0, maliashdr->numverts);
 349         }
 350
 351         R_LightModel(ent, maliashdr->numverts, org, color);
 352
 353         if (!r_render.value)
 354                 return;
 355         glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 356         glShadeModel(GL_SMOOTH);
 357         if (effects & EF_ADDITIVE)
 358         {
 359                 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive rendering
 360                 glEnable(GL_BLEND);
 361                 glDepthMask(0);
 362         }
 363         else if (alpha != 1.0)
 364         {
 365                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 366                 glEnable(GL_BLEND);
 367                 glDepthMask(0);
 368         }
 369         else
 370         {
 371                 glDisable(GL_BLEND);
 372                 glDepthMask(1);
 373         }
 374
 375         if (skin[0] || skin[1] || skin[2] || skin[3] || skin[4])
 376         {
 377                 if (colormap >= 0 && (skin[0] || skin[1] || skin[2]))
 378                 {
 379                         int c;
 380                         if (skin[0])
 381                                 GL_DrawModelMesh(skin[0], aliasvertcolor, maliashdr);
 382                         if (skin[1])
 383                         {
 384                                 c = (colormap & 0xF) << 4;c += (c >= 128 && c < 224) ? 4 : 12; // 128-224 are backwards ranges
 385                                 R_TintModel(aliasvertcolor, aliasvertcolor2, maliashdr->numverts, (byte *) (&d_8to24table[c]));
 386                                 GL_DrawModelMesh(skin[1], aliasvertcolor2, maliashdr);
 387                         }
 388                         if (skin[2])
 389                         {
 390                                 c = colormap & 0xF0      ;c += (c >= 128 && c < 224) ? 4 : 12; // 128-224 are backwards ranges
 391                                 R_TintModel(aliasvertcolor, aliasvertcolor2, maliashdr->numverts, (byte *) (&d_8to24table[c]));
 392                                 GL_DrawModelMesh(skin[2], aliasvertcolor2, maliashdr);
 393                         }
 394                 }
 395                 else
 396                 {
 397                         if (skin[4]) GL_DrawModelMesh(skin[4], aliasvertcolor, maliashdr);
 398                         else
 399                         {
 400                                 if (skin[0]) GL_DrawModelMesh(skin[0], aliasvertcolor, maliashdr);
 401                                 if (skin[1]) GL_DrawModelMesh(skin[1], aliasvertcolor, maliashdr);
 402                                 if (skin[2]) GL_DrawModelMesh(skin[2], aliasvertcolor, maliashdr);
 403                         }
 404                 }
 405                 if (skin[3]) GL_DrawModelMesh(skin[3], NULL, maliashdr);
 406         }
 407         else
 408                 GL_DrawModelMesh(0, NULL, maliashdr);
 409
 410         if (fogenabled)
 411         {
 412                 vec3_t diff;
 413                 glDisable (GL_TEXTURE_2D);
 414                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 415                 glEnable (GL_BLEND);
 416                 glDepthMask(0); // disable zbuffer updates
 417
 418                 VectorSubtract(org, r_origin, diff);
 419                 glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
 420
 421                 glDrawElements(GL_TRIANGLES, maliashdr->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) maliashdr + maliashdr->tridata));
 422
 423                 glEnable (GL_TEXTURE_2D);
 424                 glColor3f (1,1,1);
 425         }
 426         GL_UnlockArray();
 427         glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 428         glDisableClientState(GL_VERTEX_ARRAY);
 429
 430         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 431         glEnable (GL_BLEND);
 432         glDepthMask(1);
 433
 434         glPopMatrix();
 435 }
 436
 437 /*
 438 =================
 439 R_DrawQ2AliasFrame
 440
 441 =================
 442 */
 443 void R_DrawQ2AliasFrame (md2mem_t *pheader, float alpha, vec3_t color, entity_t *ent, int shadow, vec3_t org, vec3_t angles, vec_t scale, frameblend_t *blend, rtexture_t *skin, int effects, int flags)
 444 {
 445         int *order, count;
 446         md2frame_t *frame1, *frame2, *frame3, *frame4;
 447
 448         if (r_render.value)
 449                 glBindTexture(GL_TEXTURE_2D, R_GetTexture(skin));
 450
 451         if (gl_transform.value)
 452         {
 453                 if (r_render.value)
 454                 {
 455                         glPushMatrix();
 456                         GL_SetupModelTransform(org, angles, scale);
 457                 }
 458         }
 459         // always needed, for model lighting
 460         softwaretransformforentity(ent);
 461
 462         frame1 = (void *)((int) pheader + pheader->ofs_frames + (pheader->framesize * blend[0].frame));
 463         frame2 = (void *)((int) pheader + pheader->ofs_frames + (pheader->framesize * blend[1].frame));
 464         frame3 = (void *)((int) pheader + pheader->ofs_frames + (pheader->framesize * blend[2].frame));
 465         frame4 = (void *)((int) pheader + pheader->ofs_frames + (pheader->framesize * blend[3].frame));
 466         R_AliasLerpVerts(pheader->num_xyz,
 467                 blend[0].lerp, frame1->verts, frame1->scale, frame1->translate,
 468                 blend[1].lerp, frame2->verts, frame2->scale, frame2->translate,
 469                 blend[2].lerp, frame3->verts, frame3->scale, frame3->translate,
 470                 blend[3].lerp, frame4->verts, frame4->scale, frame4->translate);
 471         if (!gl_transform.value)
 472                 R_AliasTransformVerts(pheader->num_xyz);
 473
 474         R_LightModel(ent, pheader->num_xyz, org, color);
 475
 476         if (!r_render.value)
 477                 return;
 478         // LordHavoc: big mess...
 479         // using vertex arrays only slightly, although it is enough to prevent duplicates
 480         // (saving half the transforms)
 481         glVertexPointer(3, GL_FLOAT, 0, aliasvert);
 482         glColorPointer(4, GL_UNSIGNED_BYTE, 0, aliasvertcolor);
 483         glEnableClientState(GL_VERTEX_ARRAY);
 484         glEnableClientState(GL_COLOR_ARRAY);
 485
 486         order = (int *)((int)pheader + pheader->ofs_glcmds);
 487         while(1)
 488         {
 489                 if (!(count = *order++))
 490                         break;
 491                 if (count > 0)
 492                         glBegin(GL_TRIANGLE_STRIP);
 493                 else
 494                 {
 495                         glBegin(GL_TRIANGLE_FAN);
 496                         count = -count;
 497                 }
 498                 do
 499                 {
 500                         glTexCoord2f(((float *)order)[0], ((float *)order)[1]);
 501                         glArrayElement(order[2]);
 502                         order += 3;
 503                 }
 504                 while (count--);
 505         }
 506
 507         glDisableClientState(GL_COLOR_ARRAY);
 508         glDisableClientState(GL_VERTEX_ARRAY);
 509
 510         if (fogenabled)
 511         {
 512                 glDisable (GL_TEXTURE_2D);
 513                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 514                 glEnable (GL_BLEND);
 515                 glDepthMask(0); // disable zbuffer updates
 516                 {
 517                         vec3_t diff;
 518                         VectorSubtract(org, r_origin, diff);
 519                         glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
 520                 }
 521
 522                 // LordHavoc: big mess...
 523                 // using vertex arrays only slightly, although it is enough to prevent duplicates
 524                 // (saving half the transforms)
 525                 glVertexPointer(3, GL_FLOAT, 0, aliasvert);
 526                 glEnableClientState(GL_VERTEX_ARRAY);
 527
 528                 order = (int *)((int)pheader + pheader->ofs_glcmds);
 529                 while(1)
 530                 {
 531                         if (!(count = *order++))
 532                                 break;
 533                         if (count > 0)
 534                                 glBegin(GL_TRIANGLE_STRIP);
 535                         else
 536                         {
 537                                 glBegin(GL_TRIANGLE_FAN);
 538                                 count = -count;
 539                         }
 540                         do
 541                         {
 542                                 glArrayElement(order[2]);
 543                                 order += 3;
 544                         }
 545                         while (count--);
 546                 }
 547
 548                 glDisableClientState(GL_VERTEX_ARRAY);
 549
 550                 glEnable (GL_TEXTURE_2D);
 551                 glColor3f (1,1,1);
 552         }
 553
 554         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 555         glEnable (GL_BLEND);
 556         glDepthMask(1);
 557
 558         if (gl_transform.value)
 559                 glPopMatrix();
 560 }
 561
 562 void ZymoticLerpBones(int count, zymbonematrix *bonebase, frameblend_t *blend, zymbone_t *bone, float rootorigin[3], float rootangles[3], float rootscale)
 563 {
 564         float lerp1, lerp2, lerp3, lerp4;
 565         zymbonematrix *out, rootmatrix, m, *bone1, *bone2, *bone3, *bone4;
 566         lerp1 = 1 - lerp2;
 567         out = zymbonepose;
 568         AngleVectors(rootangles, rootmatrix.m[0], rootmatrix.m[1], rootmatrix.m[2]);
 569         VectorScale(rootmatrix.m[0], rootscale, rootmatrix.m[0]);
 570         VectorScale(rootmatrix.m[1], rootscale, rootmatrix.m[1]);
 571         VectorScale(rootmatrix.m[2], rootscale, rootmatrix.m[2]);
 572         rootmatrix.m[0][3] = rootorigin[0];
 573         rootmatrix.m[1][3] = rootorigin[1];
 574         rootmatrix.m[2][3] = rootorigin[2];
 575         bone1 = bonebase + blend[0].frame * count;
 576         lerp1 = blend[0].lerp;
 577         if (blend[1].lerp)
 578         {
 579                 bone2 = bonebase + blend[1].frame * count;
 580                 lerp2 = blend[1].lerp;
 581                 if (blend[2].lerp)
 582                 {
 583                         bone3 = bonebase + blend[2].frame * count;
 584                         lerp3 = blend[2].lerp;
 585                         if (blend[3].lerp)
 586                         {
 587                                 // 4 poses
 588                                 bone4 = bonebase + blend[3].frame * count;
 589                                 lerp4 = blend[3].lerp;
 590                                 while(count--)
 591                                 {
 592                                         // interpolate matrices
 593                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3 + bone4->m[0][0] * lerp4;
 594                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3 + bone4->m[0][1] * lerp4;
 595                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3 + bone4->m[0][2] * lerp4;
 596                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3 + bone4->m[0][3] * lerp4;
 597                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3 + bone4->m[1][0] * lerp4;
 598                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3 + bone4->m[1][1] * lerp4;
 599                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3 + bone4->m[1][2] * lerp4;
 600                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3 + bone4->m[1][3] * lerp4;
 601                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3 + bone4->m[2][0] * lerp4;
 602                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3 + bone4->m[2][1] * lerp4;
 603                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3 + bone4->m[2][2] * lerp4;
 604                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3 + bone4->m[2][3] * lerp4;
 605                                         if (bone->parent >= 0)
 606                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
 607                                         else
 608                                                 R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
 609                                         bone1++;
 610                                         bone2++;
 611                                         bone3++;
 612                                         bone4++;
 613                                         bone++;
 614                                         out++;
 615                                 }
 616                         }
 617                         else
 618                         {
 619                                 // 3 poses
 620                                 while(count--)
 621                                 {
 622                                         // interpolate matrices
 623                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3;
 624                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3;
 625                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3;
 626                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3;
 627                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3;
 628                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3;
 629                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3;
 630                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3;
 631                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3;
 632                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3;
 633                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3;
 634                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3;
 635                                         if (bone->parent >= 0)
 636                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
 637                                         else
 638                                                 R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
 639                                         bone1++;
 640                                         bone2++;
 641                                         bone3++;
 642                                         bone++;
 643                                         out++;
 644                                 }
 645                         }
 646                 }
 647                 else
 648                 {
 649                         // 2 poses
 650                         while(count--)
 651                         {
 652                                 // interpolate matrices
 653                                 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2;
 654                                 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2;
 655                                 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2;
 656                                 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2;
 657                                 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2;
 658                                 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2;
 659                                 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2;
 660                                 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2;
 661                                 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2;
 662                                 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2;
 663                                 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2;
 664                                 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2;
 665                                 if (bone->parent >= 0)
 666                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
 667                                 else
 668                                         R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
 669                                 bone1++;
 670                                 bone2++;
 671                                 bone++;
 672                                 out++;
 673                         }
 674                 }
 675         }
 676         else
 677         {
 678                 // 1 pose
 679                 if (lerp1 != 1)
 680                 {
 681                         // lerp != 1.0
 682                         while(count--)
 683                         {
 684                                 // interpolate matrices
 685                                 m.m[0][0] = bone1->m[0][0] * lerp1;
 686                                 m.m[0][1] = bone1->m[0][1] * lerp1;
 687                                 m.m[0][2] = bone1->m[0][2] * lerp1;
 688                                 m.m[0][3] = bone1->m[0][3] * lerp1;
 689                                 m.m[1][0] = bone1->m[1][0] * lerp1;
 690                                 m.m[1][1] = bone1->m[1][1] * lerp1;
 691                                 m.m[1][2] = bone1->m[1][2] * lerp1;
 692                                 m.m[1][3] = bone1->m[1][3] * lerp1;
 693                                 m.m[2][0] = bone1->m[2][0] * lerp1;
 694                                 m.m[2][1] = bone1->m[2][1] * lerp1;
 695                                 m.m[2][2] = bone1->m[2][2] * lerp1;
 696                                 m.m[2][3] = bone1->m[2][3] * lerp1;
 697                                 if (bone->parent >= 0)
 698                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
 699                                 else
 700                                         R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
 701                                 bone1++;
 702                                 bone++;
 703                                 out++;
 704                         }
 705                 }
 706                 else
 707                 {
 708                         // lerp == 1.0
 709                         while(count--)
 710                         {
 711                                 if (bone->parent >= 0)
 712                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &bone1->m[0], &out->m[0]);
 713                                 else
 714                                         R_ConcatTransforms(&rootmatrix.m[0], &bone1->m[0], &out->m[0]);
 715                                 bone1++;
 716                                 bone++;
 717                                 out++;
 718                         }
 719                 }
 720         }
 721 }
 722
 723 void ZymoticTransformVerts(int vertcount, int *bonecounts, zymvertex_t *vert)
 724 {
 725         int c;
 726         float *out = aliasvert;
 727         zymbonematrix *matrix;
 728         while(vertcount--)
 729         {
 730                 c = *bonecounts++;
 731                 // FIXME: validate bonecounts at load time (must be >= 1)
 732                 if (c == 1)
 733                 {
 734                         matrix = &zymbonepose[vert->bonenum];
 735                         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];
 736                         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];
 737                         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];
 738                         vert++;
 739                 }
 740                 else
 741                 {
 742                         VectorClear(out);
 743                         while(c--)
 744                         {
 745                                 matrix = &zymbonepose[vert->bonenum];
 746                                 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];
 747                                 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];
 748                                 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];
 749                                 vert++;
 750                         }
 751                 }
 752                 out += 3;
 753         }
 754 }
 755
 756 float ixtable[4096];
 757
 758 void ZymoticCalcNormals(int vertcount, int shadercount, int *renderlist)
 759 {
 760         int a, b, c, d;
 761         float *out, v1[3], v2[3], normal[3];
 762         int *u;
 763         if (!ixtable[1])
 764         {
 765                 ixtable[0] = 0;
 766                 for (a = 1;a < 4096;a++)
 767                         ixtable[a] = 1.0f / a;
 768         }
 769         // clear normals
 770         memset(aliasvertnorm, 0, sizeof(float[3]) * vertcount);
 771         memset(aliasvertusage, 0, sizeof(int) * vertcount);
 772         // parse render list and accumulate surface normals
 773         while(shadercount--)
 774         {
 775                 d = *renderlist++;
 776                 while (d--)
 777                 {
 778                         a = renderlist[0]*3;
 779                         b = renderlist[1]*3;
 780                         c = renderlist[2]*3;
 781                         v1[0] = aliasvert[a+0] - aliasvert[b+0];
 782                         v1[1] = aliasvert[a+1] - aliasvert[b+1];
 783                         v1[2] = aliasvert[a+2] - aliasvert[b+2];
 784                         v2[0] = aliasvert[c+0] - aliasvert[b+0];
 785                         v2[1] = aliasvert[c+1] - aliasvert[b+1];
 786                         v2[2] = aliasvert[c+2] - aliasvert[b+2];
 787                         CrossProduct(v1, v2, normal);
 788                         VectorNormalize(normal);
 789                         // add surface normal to vertices
 790                         aliasvertnorm[a+0] += normal[0];
 791                         aliasvertnorm[a+1] += normal[1];
 792                         aliasvertnorm[a+2] += normal[2];
 793                         aliasvertusage[a]++;
 794                         aliasvertnorm[b+0] += normal[0];
 795                         aliasvertnorm[b+1] += normal[1];
 796                         aliasvertnorm[b+2] += normal[2];
 797                         aliasvertusage[b]++;
 798                         aliasvertnorm[c+0] += normal[0];
 799                         aliasvertnorm[c+1] += normal[1];
 800                         aliasvertnorm[c+2] += normal[2];
 801                         aliasvertusage[c]++;
 802                         renderlist += 3;
 803                 }
 804         }
 805         // average surface normals
 806         out = aliasvertnorm;
 807         u = aliasvertusage;
 808         while(vertcount--)
 809         {
 810                 if (*u > 1)
 811                 {
 812                         a = ixtable[*u];
 813                         out[0] *= a;
 814                         out[1] *= a;
 815                         out[2] *= a;
 816                 }
 817                 u++;
 818                 out += 3;
 819         }
 820 }
 821
 822 void GL_DrawZymoticModelMesh(byte *colors, zymtype1header_t *m)
 823 {
 824         int i, c, *renderlist;
 825         rtexture_t **texture;
 826         if (!r_render.value)
 827                 return;
 828         renderlist = (int *)(m->lump_render.start + (int) m);
 829         texture = (rtexture_t **)(m->lump_shaders.start + (int) m);
 830         glVertexPointer(3, GL_FLOAT, 0, aliasvert);
 831         glEnableClientState(GL_VERTEX_ARRAY);
 832
 833         glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
 834         glEnableClientState(GL_COLOR_ARRAY);
 835
 836         glTexCoordPointer(2, GL_FLOAT, 0, (float *)(m->lump_texcoords.start + (int) m));
 837         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 838
 839         for (i = 0;i < m->numshaders;i++)
 840         {
 841                 c = (*renderlist++) * 3;
 842                 glBindTexture(GL_TEXTURE_2D, R_GetTexture(*texture));
 843                 texture++;
 844                 glDrawElements(GL_TRIANGLES, c, GL_UNSIGNED_INT, renderlist);
 845                 renderlist += c;
 846         }
 847
 848         glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 849
 850         glDisableClientState(GL_COLOR_ARRAY);
 851
 852         glDisableClientState(GL_VERTEX_ARRAY);
 853 }
 854
 855 void GL_DrawZymoticModelMeshFog(vec3_t org, zymtype1header_t *m)
 856 {
 857         vec3_t diff;
 858         int i, c, *renderlist;
 859         if (!r_render.value)
 860                 return;
 861         renderlist = (int *)(m->lump_render.start + (int) m);
 862         glDisable(GL_TEXTURE_2D);
 863         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 864         glEnable (GL_BLEND);
 865         glDepthMask(0); // disable zbuffer updates
 866
 867         VectorSubtract(org, r_origin, diff);
 868         glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
 869
 870         glVertexPointer(3, GL_FLOAT, 0, aliasvert);
 871         glEnableClientState(GL_VERTEX_ARRAY);
 872
 873         for (i = 0;i < m->numshaders;i++)
 874         {
 875                 c = (*renderlist++) * 3;
 876                 glDrawElements(GL_TRIANGLES, c, GL_UNSIGNED_INT, renderlist);
 877                 renderlist += c;
 878         }
 879
 880         glDisableClientState(GL_VERTEX_ARRAY);
 881
 882         glEnable(GL_TEXTURE_2D);
 883         glColor3f (1,1,1);
 884 }
 885
 886 /*
 887 =================
 888 R_DrawZymoticFrame
 889 =================
 890 */
 891 void R_DrawZymoticFrame (zymtype1header_t *m, float alpha, vec3_t color, entity_t *ent, int shadow, vec3_t org, vec3_t angles, vec_t scale, frameblend_t *blend, int skinblah, int effects, int flags)
 892 {
 893         ZymoticLerpBones(m->numbones, (zymbonematrix *)(m->lump_poses.start + (int) m), blend, (zymbone_t *)(m->lump_bones.start + (int) m), org, angles, scale);
 894         ZymoticTransformVerts(m->numverts, (int *)(m->lump_vertbonecounts.start + (int) m), (zymvertex_t *)(m->lump_verts.start + (int) m));
 895         ZymoticCalcNormals(m->numverts, m->numshaders, (int *)(m->lump_render.start + (int) m));
 896
 897         R_LightModel(ent, m->numverts, org, color);
 898
 899         if (!r_render.value)
 900                 return;
 901         glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 902         glShadeModel(GL_SMOOTH);
 903         if (effects & EF_ADDITIVE)
 904         {
 905                 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive rendering
 906                 glEnable(GL_BLEND);
 907                 glDepthMask(0);
 908         }
 909         else if (alpha != 1.0)
 910         {
 911                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 912                 glEnable(GL_BLEND);
 913                 glDepthMask(0);
 914         }
 915         else
 916         {
 917                 glDisable(GL_BLEND);
 918                 glDepthMask(1);
 919         }
 920
 921         GL_DrawZymoticModelMesh(aliasvertcolor, m);
 922
 923         if (fogenabled)
 924                 GL_DrawZymoticModelMeshFog(org, m);
 925
 926         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 927         glEnable (GL_BLEND);
 928         glDepthMask(1);
 929 }
 930
 931 /*
 932 =================
 933 R_DrawAliasModel
 934
 935 =================
 936 */
 937 void R_DrawAliasModel (entity_t *ent, int cull, float alpha, model_t *clmodel, frameblend_t *blend, int skin, vec3_t org, vec3_t angles, vec_t scale, int effects, int flags, int colormap)
 938 {
 939         int                     i;
 940         vec3_t          mins, maxs, color;
 941         void            *modelheader;
 942         rtexture_t      **skinset;
 943
 944         if (alpha < (1.0 / 64.0))
 945                 return; // basically completely transparent
 946
 947         VectorAdd (org, clmodel->mins, mins);
 948         VectorAdd (org, clmodel->maxs, maxs);
 949
 950         if (cull && R_VisibleCullBox (mins, maxs))
 951                 return;
 952
 953         c_models++;
 954
 955         if (skin < 0 || skin >= clmodel->numskins)
 956         {
 957                 skin = 0;
 958                 Con_DPrintf("invalid skin number %d for model %s\n", skin, clmodel->name);
 959         }
 960
 961         modelheader = Mod_Extradata (clmodel);
 962
 963         {
 964 //              int *skinanimrange = (int *) (clmodel->skinanimrange + (int) modelheader) + skin * 2;
 965 //              int *skinanim = (int *) (clmodel->skinanim + (int) modelheader);
 966                 int *skinanimrange = clmodel->skinanimrange + skin * 2;
 967                 rtexture_t **skinanim = clmodel->skinanim;
 968                 i = skinanimrange[0];
 969                 if (skinanimrange[1] > 1) // animated
 970                         i += ((int) (cl.time * 10) % skinanimrange[1]);
 971                 skinset = skinanim + i*5;
 972         }
 973
 974         if (r_render.value)
 975                 glEnable (GL_TEXTURE_2D);
 976
 977         c_alias_polys += clmodel->numtris;
 978         if (clmodel->aliastype == ALIASTYPE_ZYM)
 979                 R_DrawZymoticFrame (modelheader, alpha, color, ent, ent != &cl.viewent, org, angles, scale, blend, 0                   , effects, flags);
 980         else if (clmodel->aliastype == ALIASTYPE_MD2)
 981                 R_DrawQ2AliasFrame (modelheader, alpha, color, ent, ent != &cl.viewent, org, angles, scale, blend, skinset[0]          , effects, flags);
 982         else
 983                 R_DrawAliasFrame   (modelheader, alpha, color, ent, ent != &cl.viewent, org, angles, scale, blend, skinset   , colormap, effects, flags);
 984 }