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_faces, c_nodes, c_leafs, c_models, c_bmodels, c_sprites, c_particles, c_dlights;
  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_drawentities);
 227         Cvar_RegisterVariable (&r_drawviewmodel);
 228         Cvar_RegisterVariable (&r_shadows);
 229         Cvar_RegisterVariable (&r_speeds);
 230         Cvar_RegisterVariable (&r_speeds2);
 231         Cvar_RegisterVariable (&contrast);
 232         Cvar_RegisterVariable (&brightness);
 233         Cvar_RegisterVariable (&gl_lightmode);
 234 //      Cvar_RegisterVariable (&r_dynamicwater);
 235 //      Cvar_RegisterVariable (&r_dynamicbothsides);
 236         Cvar_RegisterVariable (&r_fullbrights);
 237         Cvar_RegisterVariable (&r_wateralpha);
 238         Cvar_RegisterVariable (&r_dynamic);
 239         Cvar_RegisterVariable (&r_novis);
 240         Cvar_RegisterVariable (&r_waterripple); // LordHavoc: added waterripple
 241         if (nehahra)
 242                 Cvar_SetValue("r_fullbrights", 0);
 243 //      if (gl_vendor && strstr(gl_vendor, "3Dfx"))
 244 //              gl_lightmode.value = 0;
 245         Cvar_RegisterVariable (&r_fullbright);
 246         R_RegisterModule("GL_Main", glmain_start, glmain_shutdown);
 247 }
 248
 249 extern void GL_Draw_Init();
 250 extern void GL_Main_Init();
 251 extern void GL_Models_Init();
 252 extern void GL_Poly_Init();
 253 extern void GL_Surf_Init();
 254 extern void GL_Screen_Init();
 255 extern void GL_Misc_Init();
 256 extern void R_Crosshairs_Init();
 257 extern void R_Light_Init();
 258 extern void R_Particles_Init();
 259 extern void R_Explosion_Init();
 260
 261 void Render_Init()
 262 {
 263         R_ShutdownModules();
 264         GL_Draw_Init();
 265         GL_Main_Init();
 266         GL_Models_Init();
 267         GL_Poly_Init();
 268         GL_Surf_Init();
 269         GL_Screen_Init();
 270         GL_Misc_Init();
 271         R_Crosshairs_Init();
 272         R_Light_Init();
 273         R_Particles_Init();
 274         R_Explosion_Init();
 275         R_StartModules();
 276 }
 277
 278 /*
 279 ===============
 280 GL_Init
 281 ===============
 282 */
 283 extern char *QSG_EXTENSIONS;
 284 void GL_Init (void)
 285 {
 286         gl_vendor = glGetString (GL_VENDOR);
 287         Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
 288         gl_renderer = glGetString (GL_RENDERER);
 289         Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
 290
 291         gl_version = glGetString (GL_VERSION);
 292         Con_Printf ("GL_VERSION: %s\n", gl_version);
 293         gl_extensions = glGetString (GL_EXTENSIONS);
 294         Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
 295
 296 //      Con_Printf ("%s %s\n", gl_renderer, gl_version);
 297
 298         VID_CheckMultitexture();
 299         VID_CheckVertexArrays();
 300
 301         // LordHavoc: report supported extensions
 302         Con_Printf ("\nQSG extensions: %s\n", QSG_EXTENSIONS);
 303
 304         glCullFace(GL_FRONT);
 305         glEnable(GL_TEXTURE_2D);
 306 //      glDisable(GL_ALPHA_TEST);
 307         glAlphaFunc(GL_GREATER, 0.5);
 308
 309 //      glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
 310
 311         Palette_Init();
 312 }
 313
 314
 315 /*
 316 void R_RotateForEntity (entity_t *e)
 317 {
 318         glTranslatef (e->origin[0],  e->origin[1],  e->origin[2]);
 319
 320         glRotatef (e->angles[1],  0, 0, 1);
 321         glRotatef (-e->angles[0],  0, 1, 0);
 322         glRotatef (e->angles[2],  1, 0, 0);
 323
 324         glScalef (e->scale, e->scale, e->scale); // LordHavoc: model scale
 325 }
 326 */
 327
 328 // LordHavoc: if not for the fact BRIGHTFIELD particles require this, it would be removed...
 329 #define NUMVERTEXNORMALS        162
 330
 331 float   r_avertexnormals[NUMVERTEXNORMALS][3] = {
 332 #include "anorms.h"
 333 };
 334
 335 // LordHavoc: shading stuff
 336 vec3_t  shadevector;
 337 vec3_t  shadecolor;
 338
 339 float   modelalpha;
 340
 341 //==================================================================================
 342
 343 void R_DrawBrushModel (entity_t *e);
 344 void R_DrawSpriteModel (entity_t *e);
 345
 346 /*
 347 =============
 348 R_DrawEntitiesOnList
 349 =============
 350 */
 351 // LordHavoc: split so bmodels are rendered before any other objects
 352 void R_DrawEntitiesOnList1 (void)
 353 {
 354         int             i;
 355
 356         if (!r_drawentities.value)
 357                 return;
 358
 359         for (i=0 ; i<cl_numvisedicts ; i++)
 360         {
 361                 if (cl_visedicts[i]->model->type != mod_brush)
 362                         continue;
 363                 currententity = cl_visedicts[i];
 364                 modelalpha = currententity->alpha;
 365
 366                 R_DrawBrushModel (currententity);
 367         }
 368 }
 369
 370 void R_DrawEntitiesOnList2 (void)
 371 {
 372         int             i;
 373
 374         if (!r_drawentities.value)
 375                 return;
 376
 377         for (i=0 ; i<cl_numvisedicts ; i++)
 378         {
 379                 currententity = cl_visedicts[i];
 380                 modelalpha = currententity->alpha;
 381
 382                 switch (currententity->model->type)
 383                 {
 384                 case mod_alias:
 385                         R_DrawAliasModel (currententity, true, modelalpha, currententity->model, currententity->frame, currententity->skinnum, currententity->origin, currententity->angles, currententity->effects, currententity->model->flags, currententity->colormap);
 386                         break;
 387
 388                 case mod_sprite:
 389                         R_DrawSpriteModel (currententity);
 390                         break;
 391
 392                 default:
 393                         break;
 394                 }
 395         }
 396 }
 397
 398 /*
 399 =============
 400 R_DrawViewModel
 401 =============
 402 */
 403 void R_DrawViewModel (void)
 404 {
 405         if (!r_drawviewmodel.value || chase_active.value || envmap || !r_drawentities.value || cl.items & IT_INVISIBILITY || cl.stats[STAT_HEALTH] <= 0 || !cl.viewent.model)
 406                 return;
 407
 408         currententity = &cl.viewent;
 409         currententity->alpha = modelalpha = cl_entities[cl.viewentity].alpha; // LordHavoc: if the player is transparent, so is his gun
 410         currententity->effects = cl_entities[cl.viewentity].effects;
 411         currententity->scale = 1;
 412         VectorCopy(cl_entities[cl.viewentity].colormod, currententity->colormod);
 413
 414         // hack the depth range to prevent view model from poking into walls
 415         glDepthRange (gldepthmin, gldepthmin + 0.3*(gldepthmax-gldepthmin));
 416         R_DrawAliasModel (currententity, FALSE, modelalpha, currententity->model, currententity->frame, currententity->skinnum, currententity->origin, currententity->angles, currententity->effects, currententity->model->flags, currententity->colormap);
 417         glDepthRange (gldepthmin, gldepthmax);
 418 }
 419
 420 void R_DrawBrushModel (entity_t *e);
 421
 422 void RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point, float degrees );
 423
 424 void R_SetFrustum (void)
 425 {
 426         int             i;
 427
 428         if (r_refdef.fov_x == 90)
 429         {
 430                 // front side is visible
 431
 432                 VectorAdd (vpn, vright, frustum[0].normal);
 433                 VectorSubtract (vpn, vright, frustum[1].normal);
 434
 435                 VectorAdd (vpn, vup, frustum[2].normal);
 436                 VectorSubtract (vpn, vup, frustum[3].normal);
 437         }
 438         else
 439         {
 440                 // rotate VPN right by FOV_X/2 degrees
 441                 RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_refdef.fov_x / 2 ) );
 442                 // rotate VPN left by FOV_X/2 degrees
 443                 RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_refdef.fov_x / 2 );
 444                 // rotate VPN up by FOV_X/2 degrees
 445                 RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_refdef.fov_y / 2 );
 446                 // rotate VPN down by FOV_X/2 degrees
 447                 RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_refdef.fov_y / 2 ) );
 448         }
 449
 450         for (i=0 ; i<4 ; i++)
 451         {
 452                 frustum[i].type = PLANE_ANYZ;
 453                 frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
 454 //              frustum[i].signbits = SignbitsForPlane (&frustum[i]);
 455                 BoxOnPlaneSideClassify(&frustum[i]);
 456         }
 457 }
 458
 459 void R_AnimateLight (void);
 460 void V_CalcBlend (void);
 461
 462 /*
 463 ===============
 464 R_SetupFrame
 465 ===============
 466 */
 467 void R_SetupFrame (void)
 468 {
 469 // don't allow cheats in multiplayer
 470         if (cl.maxclients > 1)
 471         {
 472                 Cvar_Set ("r_fullbright", "0");
 473                 Cvar_Set ("r_ambient", "0");
 474         }
 475
 476         R_AnimateLight ();
 477
 478         r_framecount++;
 479
 480 // build the transformation matrix for the given view angles
 481         VectorCopy (r_refdef.vieworg, r_origin);
 482
 483         AngleVectors (r_refdef.viewangles, vpn, vright, vup);
 484
 485 // current viewleaf
 486         r_oldviewleaf = r_viewleaf;
 487         r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
 488
 489         V_SetContentsColor (r_viewleaf->contents);
 490         V_CalcBlend ();
 491
 492         r_cache_thrash = false;
 493
 494         c_brush_polys = 0;
 495         c_alias_polys = 0;
 496         c_light_polys = 0;
 497         c_faces = 0;
 498         c_nodes = 0;
 499         c_leafs = 0;
 500         c_models = 0;
 501         c_bmodels = 0;
 502         c_sprites = 0;
 503         c_particles = 0;
 504 //      c_dlights = 0;
 505 }
 506
 507
 508 void MYgluPerspective( GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar )
 509 {
 510    GLdouble xmin, xmax, ymin, ymax;
 511
 512    ymax = zNear * tan( fovy * M_PI / 360.0 );
 513    ymin = -ymax;
 514
 515    xmin = ymin * aspect;
 516    xmax = ymax * aspect;
 517
 518    glFrustum( xmin, xmax, ymin, ymax, zNear, zFar );
 519 }
 520
 521
 522 extern char skyname[];
 523
 524 /*
 525 =============
 526 R_SetupGL
 527 =============
 528 */
 529 void R_SetupGL (void)
 530 {
 531         float   screenaspect;
 532         extern  int glwidth, glheight;
 533         int             x, x2, y2, y, w, h;
 534
 535         if (!r_render.value)
 536                 return;
 537         //
 538         // set up viewpoint
 539         //
 540         glMatrixMode(GL_PROJECTION);
 541     glLoadIdentity ();
 542         x = r_refdef.vrect.x * glwidth/vid.width;
 543         x2 = (r_refdef.vrect.x + r_refdef.vrect.width) * glwidth/vid.width;
 544         y = (vid.height-r_refdef.vrect.y) * glheight/vid.height;
 545         y2 = (vid.height - (r_refdef.vrect.y + r_refdef.vrect.height)) * glheight/vid.height;
 546
 547         // fudge around because of frac screen scale
 548         if (x > 0)
 549                 x--;
 550         if (x2 < glwidth)
 551                 x2++;
 552         if (y2 < 0)
 553                 y2--;
 554         if (y < glheight)
 555                 y++;
 556
 557         w = x2 - x;
 558         h = y - y2;
 559
 560         if (envmap)
 561         {
 562                 x = y2 = 0;
 563                 w = h = 256;
 564         }
 565
 566         glViewport (glx + x, gly + y2, w, h);
 567     screenaspect = (float)r_refdef.vrect.width/r_refdef.vrect.height;
 568 //      yfov = 2*atan((float)r_refdef.vrect.height/r_refdef.vrect.width)*180/M_PI;
 569 //      if (skyname[0]) // skybox enabled?
 570 //              MYgluPerspective (r_refdef.fov_y,  screenaspect,  4,  r_skyboxsize.value*1.732050807569 + 256); // this is size*sqrt(3) + 256
 571 //      else
 572                 MYgluPerspective (r_refdef.fov_y,  screenaspect,  4,  r_farclip.value);
 573
 574         glCullFace(GL_FRONT);
 575
 576         glMatrixMode(GL_MODELVIEW);
 577     glLoadIdentity ();
 578
 579     glRotatef (-90,  1, 0, 0);      // put Z going up
 580     glRotatef (90,  0, 0, 1);       // put Z going up
 581     glRotatef (-r_refdef.viewangles[2],  1, 0, 0);
 582     glRotatef (-r_refdef.viewangles[0],  0, 1, 0);
 583     glRotatef (-r_refdef.viewangles[1],  0, 0, 1);
 584     glTranslatef (-r_refdef.vieworg[0],  -r_refdef.vieworg[1],  -r_refdef.vieworg[2]);
 585
 586         glGetFloatv (GL_MODELVIEW_MATRIX, r_world_matrix);
 587
 588         //
 589         // set drawing parms
 590         //
 591 //      if (gl_cull.value)
 592                 glEnable(GL_CULL_FACE);
 593 //      else
 594 //              glDisable(GL_CULL_FACE);
 595
 596         glEnable(GL_BLEND); // was Disable
 597         glDisable(GL_ALPHA_TEST);
 598         glAlphaFunc(GL_GREATER, 0.5);
 599         glEnable(GL_DEPTH_TEST);
 600         glDepthMask(1);
 601         glShadeModel(GL_SMOOTH);
 602 }
 603
 604 /*
 605 =============
 606 R_Clear
 607 =============
 608 */
 609 void R_Clear (void)
 610 {
 611         if (!r_render.value)
 612                 return;
 613 //      glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // LordHavoc: moved to SCR_UpdateScreen
 614         gldepthmin = 0;
 615         gldepthmax = 1;
 616         glDepthFunc (GL_LEQUAL);
 617
 618         glDepthRange (gldepthmin, gldepthmax);
 619 }
 620
 621 // LordHavoc: my trick to *FIX* GLQuake lighting once and for all :)
 622 void GL_Brighten()
 623 {
 624         if (!r_render.value)
 625                 return;
 626         glMatrixMode(GL_PROJECTION);
 627     glLoadIdentity ();
 628         glOrtho  (0, vid.width, vid.height, 0, -99999, 99999);
 629         glMatrixMode(GL_MODELVIEW);
 630     glLoadIdentity ();
 631         glDisable (GL_DEPTH_TEST);
 632         glDisable (GL_CULL_FACE);
 633         glDisable(GL_TEXTURE_2D);
 634         glEnable(GL_BLEND);
 635         glBlendFunc (GL_DST_COLOR, GL_ONE);
 636         glBegin (GL_TRIANGLES);
 637         glColor3f (1, 1, 1);
 638         glVertex2f (-5000, -5000);
 639         glVertex2f (10000, -5000);
 640         glVertex2f (-5000, 10000);
 641         glEnd ();
 642         glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 643         glDisable(GL_BLEND);
 644         glEnable(GL_TEXTURE_2D);
 645         glEnable (GL_DEPTH_TEST);
 646         glEnable (GL_CULL_FACE);
 647 }
 648
 649 extern cvar_t contrast;
 650 extern cvar_t brightness;
 651 extern cvar_t gl_lightmode;
 652
 653 void GL_BlendView()
 654 {
 655         if (!r_render.value)
 656                 return;
 657         glMatrixMode(GL_PROJECTION);
 658     glLoadIdentity ();
 659         glOrtho  (0, vid.width, vid.height, 0, -99999, 99999);
 660         glMatrixMode(GL_MODELVIEW);
 661     glLoadIdentity ();
 662         glDisable (GL_DEPTH_TEST);
 663         glDisable (GL_CULL_FACE);
 664         glDisable(GL_TEXTURE_2D);
 665         glEnable(GL_BLEND);
 666         if (lighthalf)
 667         {
 668                 glBlendFunc (GL_DST_COLOR, GL_ONE);
 669                 glBegin (GL_TRIANGLES);
 670                 glColor3f (1, 1, 1);
 671                 glVertex2f (-5000, -5000);
 672                 glVertex2f (10000, -5000);
 673                 glVertex2f (-5000, 10000);
 674                 glEnd ();
 675         }
 676         glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 677         contrast.value = bound(0.2, contrast.value, 1.0);
 678         if (/*gl_polyblend.value && */v_blend[3])
 679         {
 680                 glBegin (GL_TRIANGLES);
 681                 glColor4fv (v_blend);
 682                 glVertex2f (-5000, -5000);
 683                 glVertex2f (10000, -5000);
 684                 glVertex2f (-5000, 10000);
 685                 glEnd ();
 686         }
 687
 688         glEnable (GL_CULL_FACE);
 689         glEnable (GL_DEPTH_TEST);
 690         glDisable(GL_BLEND);
 691         glEnable(GL_TEXTURE_2D);
 692 }
 693
 694 /*
 695 #define TIMEREPORT(DESC) \
 696         if (r_speeds2.value)\
 697         {\
 698                 temptime = -currtime;\
 699                 currtime = Sys_FloatTime();\
 700                 temptime += currtime;\
 701                 Con_Printf(DESC " %.4fms ", temptime * 1000.0);\
 702         }
 703 */
 704 #define TIMEREPORT(VAR) \
 705         if (r_speeds2.value)\
 706         {\
 707                 temptime = currtime;\
 708                 currtime = Sys_FloatTime();\
 709                 VAR = (int) ((currtime - temptime) * 1000000.0);\
 710         }\
 711         else\
 712                 VAR = 0;
 713
 714 /*
 715 ================
 716 R_RenderView
 717
 718 r_refdef must be set before the first call
 719 ================
 720 */
 721 extern qboolean intimerefresh;
 722 extern qboolean skyisvisible;
 723 extern void R_Sky();
 724 extern void UploadLightmaps();
 725 char r_speeds2_string1[81], r_speeds2_string2[81], r_speeds2_string3[81], r_speeds2_string4[81], r_speeds2_string5[81], r_speeds2_string6[81];
 726 void R_RenderView (void)
 727 {
 728         double starttime, currtime, temptime;
 729         int time_clear, time_setup, time_world, time_bmodels, time_upload, time_sky, time_wall, time_models, time_moveparticles, time_drawparticles, time_moveexplosions, time_drawexplosions, time_transpoly, time_blend, time_total;
 730 //      double currtime, temptime;
 731 //      if (r_norefresh.value)
 732 //              return;
 733
 734         if (!r_worldentity.model || !cl.worldmodel)
 735                 Sys_Error ("R_RenderView: NULL worldmodel");
 736
 737         lighthalf = gl_lightmode.value;
 738
 739         FOG_framebegin();
 740
 741         if (r_speeds2.value)
 742         {
 743                 starttime = currtime = Sys_FloatTime();
 744 //              Con_Printf("render time: ");
 745         }
 746         else
 747                 starttime = currtime = 0;
 748         R_Clear();
 749         skypolyclear();
 750         wallpolyclear();
 751         transpolyclear();
 752         skyisvisible = false;
 753         TIMEREPORT(time_clear)
 754
 755         // render normal view
 756
 757         R_SetupFrame ();
 758         R_SetFrustum ();
 759         R_SetupGL ();
 760         TIMEREPORT(time_setup)
 761
 762         R_MarkLeaves ();        // done here so we know if we're in water
 763         R_DrawWorld ();         // adds static entities to the list
 764         TIMEREPORT(time_world)
 765         R_DrawEntitiesOnList1 (); // BSP models
 766         TIMEREPORT(time_bmodels)
 767
 768         UploadLightmaps();
 769         TIMEREPORT(time_upload)
 770
 771         skypolyrender(); // fogged sky polys, affects depth
 772
 773         if (skyname[0] && skyisvisible && !fogenabled)
 774                 R_Sky(); // does not affect depth, draws over the sky polys
 775         TIMEREPORT(time_sky)
 776
 777         wallpolyrender();
 778         TIMEREPORT(time_wall)
 779
 780 //      if (!intimerefresh)
 781 //              S_ExtraUpdate ();       // don't let sound get messed up if going slow
 782
 783         R_DrawEntitiesOnList2 (); // other models
 784 //      R_RenderDlights ();
 785         R_DrawViewModel ();
 786         TIMEREPORT(time_models)
 787         R_MoveParticles ();
 788         TIMEREPORT(time_moveparticles)
 789         R_DrawParticles ();
 790         TIMEREPORT(time_drawparticles)
 791         R_MoveExplosions();
 792         TIMEREPORT(time_moveexplosions)
 793         R_DrawExplosions();
 794         TIMEREPORT(time_drawexplosions)
 795
 796         transpolyrender();
 797         TIMEREPORT(time_transpoly)
 798
 799         FOG_frameend();
 800
 801         GL_BlendView();
 802         TIMEREPORT(time_blend)
 803         if (r_speeds2.value)
 804         {
 805                 time_total = (int) ((Sys_FloatTime() - starttime) * 1000000.0);
 806 //              Con_Printf("\n");
 807                 sprintf(r_speeds2_string1, "%6i walls %6i dlitwalls %7i modeltris %7i transpoly\n", c_brush_polys, c_light_polys, c_alias_polys, currenttranspoly);
 808                 sprintf(r_speeds2_string2, "BSP: %6i faces %6i nodes %6i leafs\n", c_faces, c_nodes, c_leafs);
 809                 sprintf(r_speeds2_string3, "%4i models %4i bmodels %4i sprites %5i particles %3i dlights\n", c_models, c_bmodels, c_sprites, c_particles, c_dlights);
 810                 sprintf(r_speeds2_string4, "%6ius clear  %6ius setup  %6ius world  %6ius bmodel %6ius upload", time_clear, time_setup, time_world, time_bmodels, time_upload);
 811                 sprintf(r_speeds2_string5, "%6ius sky    %6ius wall   %6ius models %6ius mpart  %6ius dpart ", time_sky, time_wall, time_models, time_moveparticles, time_drawparticles);
 812                 sprintf(r_speeds2_string6, "%6ius trans  %6ius blend  %6ius total  %6ius permdl", time_transpoly, time_blend, time_total, time_models / max(c_models, 1));
 813         }
 814 }