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