gl_rmain.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // r_main.c
  21
  22 #include "quakedef.h"
  23
  24 entity_t        r_worldentity;
  25
  26 qboolean        r_cache_thrash;         // compatability
  27
  28 vec3_t          modelorg, r_entorigin;
  29 entity_t        *currententity;
  30
  31 int                     r_visframecount;        // bumped when going to a new PVS
  32 int                     r_framecount;           // used for dlight push checking
  33
  34 mplane_t        frustum[4];
  35
  36 int                     c_brush_polys, c_alias_polys, c_light_polys, c_nodes, c_leafs;
  37
  38 qboolean        envmap;                         // true during envmap command capture
  39
  40 // LordHavoc: moved all code related to particles into r_part.c
  41 //int                   particletexture;        // little dot for particles
  42 //int                   playertextures;         // up to 16 color translated skins
  43
  44 //
  45 // view origin
  46 //
  47 vec3_t  vup;
  48 vec3_t  vpn;
  49 vec3_t  vright;
  50 vec3_t  r_origin;
  51
  52 float   r_world_matrix[16];
  53 float   r_base_world_matrix[16];
  54
  55 //
  56 // screen size info
  57 //
  58 refdef_t        r_refdef;
  59
  60 mleaf_t         *r_viewleaf, *r_oldviewleaf;
  61
  62 texture_t       *r_notexture_mip;
  63
  64 unsigned short  d_lightstylevalue[256]; // 8.8 fraction of base light value
  65
  66
  67 void R_MarkLeaves (void);
  68
  69 //cvar_t        r_norefresh = {"r_norefresh","0"};
  70 cvar_t  r_drawentities = {"r_drawentities","1"};
  71 cvar_t  r_drawviewmodel = {"r_drawviewmodel","1"};
  72 cvar_t  r_speeds = {"r_speeds","0"};
  73 cvar_t  r_speeds2 = {"r_speeds2","0"};
  74 cvar_t  r_fullbright = {"r_fullbright","0"};
  75 //cvar_t        r_lightmap = {"r_lightmap","0"};
  76 cvar_t  r_shadows = {"r_shadows","0"};
  77 cvar_t  r_wateralpha = {"r_wateralpha","1"};
  78 cvar_t  r_dynamic = {"r_dynamic","1"};
  79 cvar_t  r_novis = {"r_novis","0"};
  80 cvar_t  r_waterripple = {"r_waterripple","0"};
  81 cvar_t  r_fullbrights = {"r_fullbrights", "1"};
  82
  83 cvar_t  contrast = {"contrast", "1.0", TRUE}; // LordHavoc: a method of operating system independent color correction
  84 cvar_t  brightness = {"brightness", "1.0", TRUE}; // LordHavoc: a method of operating system independent color correction
  85 cvar_t  gl_lightmode = {"gl_lightmode", "1", TRUE}; // LordHavoc: overbright lighting
  86 //cvar_t        r_dynamicbothsides = {"r_dynamicbothsides", "1"}; // LordHavoc: can disable dynamic lighting of backfaces, but quake maps are weird so it doesn't always work right...
  87 cvar_t  r_farclip = {"r_farclip", "6144"};
  88
  89 cvar_t  gl_fogenable = {"gl_fogenable", "0"};
  90 cvar_t  gl_fogdensity = {"gl_fogdensity", "0.25"};
  91 cvar_t  gl_fogred = {"gl_fogred","0.3"};
  92 cvar_t  gl_foggreen = {"gl_foggreen","0.3"};
  93 cvar_t  gl_fogblue = {"gl_fogblue","0.3"};
  94 cvar_t  gl_fogstart = {"gl_fogstart", "0"};
  95 cvar_t  gl_fogend = {"gl_fogend","0"};
  96 cvar_t  glfog = {"glfog", "0"};
  97
  98 qboolean lighthalf;
  99
 100 vec3_t fogcolor;
 101 vec_t fogdensity;
 102 float fog_density, fog_red, fog_green, fog_blue;
 103 qboolean fogenabled;
 104 qboolean oldgl_fogenable;
 105 void FOG_framebegin()
 106 {
 107         if (nehahra)
 108         {
 109 //              if (!Nehahrademcompatibility)
 110 //                      gl_fogenable.value = 0;
 111                 if (gl_fogenable.value)
 112                 {
 113                         oldgl_fogenable = true;
 114                         fog_density = gl_fogdensity.value;
 115                         fog_red = gl_fogred.value;
 116                         fog_green = gl_foggreen.value;
 117                         fog_blue = gl_fogblue.value;
 118                 }
 119                 else if (oldgl_fogenable)
 120                 {
 121                         oldgl_fogenable = false;
 122                         fog_density = 0;
 123                         fog_red = 0;
 124                         fog_green = 0;
 125                         fog_blue = 0;
 126                 }
 127         }
 128         if (fog_density)
 129         {
 130                         fogcolor[0] = fog_red   = bound(0.0f, fog_red  , 1.0f);
 131                         fogcolor[1] = fog_green = bound(0.0f, fog_green, 1.0f);
 132                         fogcolor[2] = fog_blue  = bound(0.0f, fog_blue , 1.0f);
 133                         if (lighthalf)
 134                         {
 135                                 fogcolor[0] *= 0.5f;
 136                                 fogcolor[1] *= 0.5f;
 137                                 fogcolor[2] *= 0.5f;
 138                         }
 139         }
 140         if (glfog.value)
 141         {
 142                 if (!r_render.value)
 143                         return;
 144                 if(fog_density)
 145                 {
 146                         // LordHavoc: Borland C++ 5.0 was choking on this line, stupid compiler...
 147                         //GLfloat colors[4] = {(GLfloat) gl_fogred.value, (GLfloat) gl_foggreen.value, (GLfloat) gl_fogblue.value, (GLfloat) 1};
 148                         GLfloat colors[4];
 149                         colors[0] = fog_red;
 150                         colors[1] = fog_green;
 151                         colors[2] = fog_blue;
 152                         colors[3] = 1;
 153                         if (lighthalf)
 154                         {
 155                                 colors[0] *= 0.5f;
 156                                 colors[1] *= 0.5f;
 157                                 colors[2] *= 0.5f;
 158                         }
 159
 160                         glFogi (GL_FOG_MODE, GL_EXP2);
 161                         glFogf (GL_FOG_DENSITY, (GLfloat) fog_density / 100);
 162                         glFogfv (GL_FOG_COLOR, colors);
 163                         glEnable (GL_FOG);
 164                 }
 165                 else
 166                         glDisable(GL_FOG);
 167         }
 168         else
 169         {
 170                 if (fog_density)
 171                 {
 172                         fogenabled = true;
 173                         fogdensity = -4000.0f / (fog_density * fog_density);
 174                         // fog color was already set
 175                 }
 176                 else
 177                         fogenabled = false;
 178         }
 179 }
 180
 181 void FOG_frameend()
 182 {
 183         if (glfog.value)
 184                 glDisable(GL_FOG);
 185 }
 186
 187 void FOG_clear()
 188 {
 189         if (nehahra)
 190         {
 191                 Cvar_Set("gl_fogenable", "0");
 192                 Cvar_Set("gl_fogdensity", "0.2");
 193                 Cvar_Set("gl_fogred", "0.3");
 194                 Cvar_Set("gl_foggreen", "0.3");
 195                 Cvar_Set("gl_fogblue", "0.3");
 196         }
 197         fog_density = fog_red = fog_green = fog_blue = 0.0f;
 198 }
 199
 200 void FOG_registercvars()
 201 {
 202         Cvar_RegisterVariable (&glfog);
 203         if (nehahra)
 204         {
 205                 Cvar_RegisterVariable (&gl_fogenable);
 206                 Cvar_RegisterVariable (&gl_fogdensity);
 207                 Cvar_RegisterVariable (&gl_fogred);
 208                 Cvar_RegisterVariable (&gl_foggreen);
 209                 Cvar_RegisterVariable (&gl_fogblue);
 210                 Cvar_RegisterVariable (&gl_fogstart);
 211                 Cvar_RegisterVariable (&gl_fogend);
 212         }
 213 }
 214
 215 void glmain_start()
 216 {
 217 }
 218
 219 void glmain_shutdown()
 220 {
 221 }
 222
 223 void GL_Main_Init()
 224 {
 225         FOG_registercvars();
 226         Cvar_RegisterVariable (&r_speeds2);
 227         Cvar_RegisterVariable (&contrast);
 228         Cvar_RegisterVariable (&brightness);
 229         Cvar_RegisterVariable (&gl_lightmode);
 230 //      Cvar_RegisterVariable (&r_dynamicwater);
 231 //      Cvar_RegisterVariable (&r_dynamicbothsides);
 232         Cvar_RegisterVariable (&r_fullbrights);
 233         if (nehahra)
 234                 Cvar_SetValue("r_fullbrights", 0);
 235 //      if (gl_vendor && strstr(gl_vendor, "3Dfx"))
 236 //              gl_lightmode.value = 0;
 237         Cvar_RegisterVariable (&r_fullbright);
 238         R_RegisterModule("GL_Main", glmain_start, glmain_shutdown);
 239 }
 240
 241 extern void GL_Draw_Init();
 242 extern void GL_Main_Init();
 243 extern void GL_Models_Init();
 244 extern void GL_Poly_Init();
 245 extern void GL_Surf_Init();
 246 extern void GL_Screen_Init();
 247 extern void GL_Misc_Init();
 248 extern void R_Crosshairs_Init();
 249 extern void R_Light_Init();
 250 extern void R_Particles_Init();
 251
 252 void Render_Init()
 253 {
 254         R_ShutdownModules();
 255         GL_Draw_Init();
 256         GL_Main_Init();
 257         GL_Models_Init();
 258         GL_Poly_Init();
 259         GL_Surf_Init();
 260         GL_Screen_Init();
 261         GL_Misc_Init();
 262         R_Crosshairs_Init();
 263         R_Light_Init();
 264         R_Particles_Init();
 265         R_StartModules();
 266 }
 267
 268 /*
 269 ===============
 270 GL_Init
 271 ===============
 272 */
 273 extern char *QSG_EXTENSIONS;
 274 void GL_Init (void)
 275 {
 276         gl_vendor = glGetString (GL_VENDOR);
 277         Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
 278         gl_renderer = glGetString (GL_RENDERER);
 279         Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
 280
 281         gl_version = glGetString (GL_VERSION);
 282         Con_Printf ("GL_VERSION: %s\n", gl_version);
 283         gl_extensions = glGetString (GL_EXTENSIONS);
 284         Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
 285
 286 //      Con_Printf ("%s %s\n", gl_renderer, gl_version);
 287
 288         VID_CheckMultitexture();
 289         VID_CheckVertexArrays();
 290
 291         // LordHavoc: report supported extensions
 292         Con_Printf ("\nQSG extensions: %s\n", QSG_EXTENSIONS);
 293
 294         glCullFace(GL_FRONT);
 295         glEnable(GL_TEXTURE_2D);
 296 //      glDisable(GL_ALPHA_TEST);
 297         glAlphaFunc(GL_GREATER, 0.5);
 298
 299 //      glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
 300
 301         Palette_Init();
 302 }
 303
 304
 305 /*
 306 void R_RotateForEntity (entity_t *e)
 307 {
 308         glTranslatef (e->origin[0],  e->origin[1],  e->origin[2]);
 309
 310         glRotatef (e->angles[1],  0, 0, 1);
 311         glRotatef (-e->angles[0],  0, 1, 0);
 312         glRotatef (e->angles[2],  1, 0, 0);
 313
 314         glScalef (e->scale, e->scale, e->scale); // LordHavoc: model scale
 315 }
 316 */
 317
 318 // LordHavoc: if not for the fact BRIGHTFIELD particles require this, it would be removed...
 319 #define NUMVERTEXNORMALS        162
 320
 321 float   r_avertexnormals[NUMVERTEXNORMALS][3] = {
 322 #include "anorms.h"
 323 };
 324
 325 // LordHavoc: shading stuff
 326 vec3_t  shadevector;
 327 vec3_t  shadecolor;
 328
 329 float   modelalpha;
 330
 331 //==================================================================================
 332
 333 void R_DrawBrushModel (entity_t *e);
 334 void R_DrawSpriteModel (entity_t *e);
 335
 336 /*
 337 =============
 338 R_DrawEntitiesOnList
 339 =============
 340 */
 341 // LordHavoc: split so bmodels are rendered before any other objects
 342 void R_DrawEntitiesOnList1 (void)
 343 {
 344         int             i;
 345
 346         if (!r_drawentities.value)
 347                 return;
 348
 349         for (i=0 ; i<cl_numvisedicts ; i++)
 350         {
 351                 if (cl_visedicts[i]->model->type != mod_brush)
 352                         continue;
 353                 currententity = cl_visedicts[i];
 354                 modelalpha = currententity->alpha;
 355
 356                 R_DrawBrushModel (currententity);
 357         }
 358 }
 359
 360 void R_DrawEntitiesOnList2 (void)
 361 {
 362         int             i;
 363
 364         if (!r_drawentities.value)
 365                 return;
 366
 367         for (i=0 ; i<cl_numvisedicts ; i++)
 368         {
 369                 currententity = cl_visedicts[i];
 370                 modelalpha = currententity->alpha;
 371
 372                 switch (currententity->model->type)
 373                 {
 374                 case mod_alias:
 375                         R_DrawAliasModel (currententity, true, modelalpha, currententity->model, currententity->frame, currententity->skinnum, currententity->origin, currententity->effects, currententity->model->flags, currententity->colormap);
 376                         break;
 377
 378                 case mod_sprite:
 379                         R_DrawSpriteModel (currententity);
 380                         break;
 381
 382                 default:
 383                         break;
 384                 }
 385         }
 386 }
 387
 388 /*
 389 =============
 390 R_DrawViewModel
 391 =============
 392 */
 393 void R_DrawViewModel (void)
 394 {
 395         if (!r_drawviewmodel.value || chase_active.value || envmap || !r_drawentities.value || cl.items & IT_INVISIBILITY || cl.stats[STAT_HEALTH] <= 0 || !cl.viewent.model)
 396                 return;
 397
 398         currententity = &cl.viewent;
 399         currententity->alpha = modelalpha = cl_entities[cl.viewentity].alpha; // LordHavoc: if the player is transparent, so is his gun
 400         currententity->effects = cl_entities[cl.viewentity].effects;
 401         currententity->scale = 1;
 402         VectorCopy(cl_entities[cl.viewentity].colormod, currententity->colormod);
 403
 404         // hack the depth range to prevent view model from poking into walls
 405         glDepthRange (gldepthmin, gldepthmin + 0.3*(gldepthmax-gldepthmin));
 406         R_DrawAliasModel (currententity, FALSE, modelalpha, currententity->model, currententity->frame, currententity->skinnum, currententity->origin, currententity->effects, currententity->model->flags, currententity->colormap);
 407         glDepthRange (gldepthmin, gldepthmax);
 408 }
 409
 410 void R_DrawBrushModel (entity_t *e);
 411
 412 void RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point, float degrees );
 413
 414 void R_SetFrustum (void)
 415 {
 416         int             i;
 417
 418         if (r_refdef.fov_x == 90)
 419         {
 420                 // front side is visible
 421
 422                 VectorAdd (vpn, vright, frustum[0].normal);
 423                 VectorSubtract (vpn, vright, frustum[1].normal);
 424
 425                 VectorAdd (vpn, vup, frustum[2].normal);
 426                 VectorSubtract (vpn, vup, frustum[3].normal);
 427         }
 428         else
 429         {
 430                 // rotate VPN right by FOV_X/2 degrees
 431                 RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_refdef.fov_x / 2 ) );
 432                 // rotate VPN left by FOV_X/2 degrees
 433                 RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_refdef.fov_x / 2 );
 434                 // rotate VPN up by FOV_X/2 degrees
 435                 RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_refdef.fov_y / 2 );
 436                 // rotate VPN down by FOV_X/2 degrees
 437                 RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_refdef.fov_y / 2 ) );
 438         }
 439
 440         for (i=0 ; i<4 ; i++)
 441         {
 442                 frustum[i].type = PLANE_ANYZ;
 443                 frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
 444 //              frustum[i].signbits = SignbitsForPlane (&frustum[i]);
 445                 BoxOnPlaneSideClassify(&frustum[i]);
 446         }
 447 }
 448
 449 void R_AnimateLight (void);
 450 void V_CalcBlend (void);
 451
 452 /*
 453 ===============
 454 R_SetupFrame
 455 ===============
 456 */
 457 void R_SetupFrame (void)
 458 {
 459 // don't allow cheats in multiplayer
 460         if (cl.maxclients > 1)
 461         {
 462                 Cvar_Set ("r_fullbright", "0");
 463                 Cvar_Set ("r_ambient", "0");
 464         }
 465
 466         R_AnimateLight ();
 467
 468         r_framecount++;
 469
 470 // build the transformation matrix for the given view angles
 471         VectorCopy (r_refdef.vieworg, r_origin);
 472
 473         AngleVectors (r_refdef.viewangles, vpn, vright, vup);
 474
 475 // current viewleaf
 476         r_oldviewleaf = r_viewleaf;
 477         r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
 478
 479         V_SetContentsColor (r_viewleaf->contents);
 480         V_CalcBlend ();
 481
 482         r_cache_thrash = false;
 483
 484         c_brush_polys = 0;
 485         c_alias_polys = 0;
 486         c_light_polys = 0;
 487         c_nodes = 0;
 488         c_leafs = 0;
 489
 490 }
 491
 492
 493 void MYgluPerspective( GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar )
 494 {
 495    GLdouble xmin, xmax, ymin, ymax;
 496
 497    ymax = zNear * tan( fovy * M_PI / 360.0 );
 498    ymin = -ymax;
 499
 500    xmin = ymin * aspect;
 501    xmax = ymax * aspect;
 502
 503    glFrustum( xmin, xmax, ymin, ymax, zNear, zFar );
 504 }
 505
 506
 507 extern char skyname[];
 508
 509 /*
 510 =============
 511 R_SetupGL
 512 =============
 513 */
 514 void R_SetupGL (void)
 515 {
 516         float   screenaspect;
 517         extern  int glwidth, glheight;
 518         int             x, x2, y2, y, w, h;
 519
 520         if (!r_render.value)
 521                 return;
 522         //
 523         // set up viewpoint
 524         //
 525         glMatrixMode(GL_PROJECTION);
 526     glLoadIdentity ();
 527         x = r_refdef.vrect.x * glwidth/vid.width;
 528         x2 = (r_refdef.vrect.x + r_refdef.vrect.width) * glwidth/vid.width;
 529         y = (vid.height-r_refdef.vrect.y) * glheight/vid.height;
 530         y2 = (vid.height - (r_refdef.vrect.y + r_refdef.vrect.height)) * glheight/vid.height;
 531
 532         // fudge around because of frac screen scale
 533         if (x > 0)
 534                 x--;
 535         if (x2 < glwidth)
 536                 x2++;
 537         if (y2 < 0)
 538                 y2--;
 539         if (y < glheight)
 540                 y++;
 541
 542         w = x2 - x;
 543         h = y - y2;
 544
 545         if (envmap)
 546         {
 547                 x = y2 = 0;
 548                 w = h = 256;
 549         }
 550
 551         glViewport (glx + x, gly + y2, w, h);
 552     screenaspect = (float)r_refdef.vrect.width/r_refdef.vrect.height;
 553 //      yfov = 2*atan((float)r_refdef.vrect.height/r_refdef.vrect.width)*180/M_PI;
 554 //      if (skyname[0]) // skybox enabled?
 555 //              MYgluPerspective (r_refdef.fov_y,  screenaspect,  4,  r_skyboxsize.value*1.732050807569 + 256); // this is size*sqrt(3) + 256
 556 //      else
 557                 MYgluPerspective (r_refdef.fov_y,  screenaspect,  4,  r_farclip.value);
 558
 559         glCullFace(GL_FRONT);
 560
 561         glMatrixMode(GL_MODELVIEW);
 562     glLoadIdentity ();
 563
 564     glRotatef (-90,  1, 0, 0);      // put Z going up
 565     glRotatef (90,  0, 0, 1);       // put Z going up
 566     glRotatef (-r_refdef.viewangles[2],  1, 0, 0);
 567     glRotatef (-r_refdef.viewangles[0],  0, 1, 0);
 568     glRotatef (-r_refdef.viewangles[1],  0, 0, 1);
 569     glTranslatef (-r_refdef.vieworg[0],  -r_refdef.vieworg[1],  -r_refdef.vieworg[2]);
 570
 571         glGetFloatv (GL_MODELVIEW_MATRIX, r_world_matrix);
 572
 573         //
 574         // set drawing parms
 575         //
 576 //      if (gl_cull.value)
 577                 glEnable(GL_CULL_FACE);
 578 //      else
 579 //              glDisable(GL_CULL_FACE);
 580
 581         glEnable(GL_BLEND); // was Disable
 582         glDisable(GL_ALPHA_TEST);
 583         glAlphaFunc(GL_GREATER, 0.5);
 584         glEnable(GL_DEPTH_TEST);
 585         glDepthMask(1);
 586         glShadeModel(GL_SMOOTH);
 587 }
 588
 589 void R_DrawWorld (void);
 590 //void R_RenderDlights (void);
 591 void R_DrawParticles (void);
 592
 593 /*
 594 =============
 595 R_Clear
 596 =============
 597 */
 598 void R_Clear (void)
 599 {
 600         if (!r_render.value)
 601                 return;
 602 //      glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // LordHavoc: moved to SCR_UpdateScreen
 603         gldepthmin = 0;
 604         gldepthmax = 1;
 605         glDepthFunc (GL_LEQUAL);
 606
 607         glDepthRange (gldepthmin, gldepthmax);
 608 }
 609
 610 // LordHavoc: my trick to *FIX* GLQuake lighting once and for all :)
 611 void GL_Brighten()
 612 {
 613         if (!r_render.value)
 614                 return;
 615         glMatrixMode(GL_PROJECTION);
 616     glLoadIdentity ();
 617         glOrtho  (0, vid.width, vid.height, 0, -99999, 99999);
 618         glMatrixMode(GL_MODELVIEW);
 619     glLoadIdentity ();
 620         glDisable (GL_DEPTH_TEST);
 621         glDisable (GL_CULL_FACE);
 622         glDisable(GL_TEXTURE_2D);
 623         glEnable(GL_BLEND);
 624         glBlendFunc (GL_DST_COLOR, GL_ONE);
 625         glBegin (GL_TRIANGLES);
 626         glColor3f (1, 1, 1);
 627         glVertex2f (-5000, -5000);
 628         glVertex2f (10000, -5000);
 629         glVertex2f (-5000, 10000);
 630         glEnd ();
 631         glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 632         glDisable(GL_BLEND);
 633         glEnable(GL_TEXTURE_2D);
 634         glEnable (GL_DEPTH_TEST);
 635         glEnable (GL_CULL_FACE);
 636 }
 637
 638 extern cvar_t contrast;
 639 extern cvar_t brightness;
 640 extern cvar_t gl_lightmode;
 641
 642 void GL_BlendView()
 643 {
 644         if (!r_render.value)
 645                 return;
 646         glMatrixMode(GL_PROJECTION);
 647     glLoadIdentity ();
 648         glOrtho  (0, vid.width, vid.height, 0, -99999, 99999);
 649         glMatrixMode(GL_MODELVIEW);
 650     glLoadIdentity ();
 651         glDisable (GL_DEPTH_TEST);
 652         glDisable (GL_CULL_FACE);
 653         glDisable(GL_TEXTURE_2D);
 654         glEnable(GL_BLEND);
 655         if (lighthalf)
 656         {
 657                 glBlendFunc (GL_DST_COLOR, GL_ONE);
 658                 glBegin (GL_TRIANGLES);
 659                 glColor3f (1, 1, 1);
 660                 glVertex2f (-5000, -5000);
 661                 glVertex2f (10000, -5000);
 662                 glVertex2f (-5000, 10000);
 663                 glEnd ();
 664         }
 665         glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 666         contrast.value = bound(0.2, contrast.value, 1.0);
 667         if (/*gl_polyblend.value && */v_blend[3])
 668         {
 669                 glBegin (GL_TRIANGLES);
 670                 glColor4fv (v_blend);
 671                 glVertex2f (-5000, -5000);
 672                 glVertex2f (10000, -5000);
 673                 glVertex2f (-5000, 10000);
 674                 glEnd ();
 675         }
 676
 677         glEnable (GL_CULL_FACE);
 678         glEnable (GL_DEPTH_TEST);
 679         glDisable(GL_BLEND);
 680         glEnable(GL_TEXTURE_2D);
 681 }
 682
 683 #define TIMEREPORT(DESC) \
 684         if (r_speeds2.value)\
 685         {\
 686                 temptime = -currtime;\
 687                 currtime = Sys_FloatTime();\
 688                 temptime += currtime;\
 689                 Con_Printf(DESC " %.4fms ", temptime * 1000.0);\
 690         }
 691
 692 /*
 693 ================
 694 R_RenderView
 695
 696 r_refdef must be set before the first call
 697 ================
 698 */
 699 extern qboolean intimerefresh;
 700 extern qboolean skyisvisible;
 701 extern void R_Sky();
 702 extern void UploadLightmaps();
 703 void R_RenderView (void)
 704 {
 705 //      double currtime, temptime;
 706 //      if (r_norefresh.value)
 707 //              return;
 708
 709         if (!r_worldentity.model || !cl.worldmodel)
 710                 Sys_Error ("R_RenderView: NULL worldmodel");
 711
 712         lighthalf = gl_lightmode.value;
 713
 714         FOG_framebegin();
 715
 716 //      if (r_speeds2.value)
 717 //      {
 718 //              currtime = Sys_FloatTime();
 719 //              Con_Printf("render time: ");
 720 //      }
 721         R_Clear();
 722 //      TIMEREPORT("R_Clear")
 723
 724         // render normal view
 725
 726         R_SetupFrame ();
 727         R_SetFrustum ();
 728         R_SetupGL ();
 729
 730         skypolyclear();
 731         wallpolyclear();
 732         transpolyclear();
 733         skyisvisible = false;
 734
 735         R_MarkLeaves ();        // done here so we know if we're in water
 736         R_DrawWorld ();         // adds static entities to the list
 737         if (!intimerefresh)
 738                 S_ExtraUpdate ();       // don't let sound get messed up if going slow
 739         R_DrawEntitiesOnList1 (); // BSP models
 740
 741         skypolyrender(); // fogged sky polys, affects depth
 742         if (skyname[0] && skyisvisible && !fogenabled)
 743                 R_Sky(); // does not affect depth, draws over the sky polys
 744
 745         UploadLightmaps();
 746         wallpolyrender();
 747
 748         R_DrawEntitiesOnList2 (); // other models
 749 //      R_RenderDlights ();
 750         R_DrawViewModel ();
 751         R_DrawParticles ();
 752
 753         transpolyrender();
 754
 755         FOG_frameend();
 756         GL_BlendView();
 757 //      if (r_speeds2.value)
 758 //              Con_Printf("\n");
 759 }