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 //static qboolean       r_cache_thrash;         // compatability
  25
  26 entity_render_t *currentrenderentity;
  27
  28 int                     r_framecount;           // used for dlight push checking
  29
  30 mplane_t        frustum[4];
  31
  32 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;
  33
  34 qboolean        envmap;                         // true during envmap command capture
  35
  36 // LordHavoc: moved all code related to particles into r_part.c
  37 //int                   particletexture;        // little dot for particles
  38 //int                   playertextures;         // up to 16 color translated skins
  39
  40 //
  41 // view origin
  42 //
  43 vec3_t  vup;
  44 vec3_t  vpn;
  45 vec3_t  vright;
  46 vec3_t  r_origin;
  47
  48 //float r_world_matrix[16];
  49 //float r_base_world_matrix[16];
  50
  51 //
  52 // screen size info
  53 //
  54 refdef_t        r_refdef;
  55
  56 mleaf_t         *r_viewleaf, *r_oldviewleaf;
  57
  58 unsigned short  d_lightstylevalue[256]; // 8.8 fraction of base light value
  59
  60 //cvar_t        r_norefresh = {0, "r_norefresh","0"};
  61 cvar_t  r_drawentities = {0, "r_drawentities","1"};
  62 cvar_t  r_drawviewmodel = {0, "r_drawviewmodel","1"};
  63 cvar_t  r_speeds = {0, "r_speeds","0"};
  64 cvar_t  r_fullbright = {0, "r_fullbright","0"};
  65 //cvar_t        r_lightmap = {0, "r_lightmap","0"};
  66 cvar_t  r_wateralpha = {CVAR_SAVE, "r_wateralpha","1"};
  67 cvar_t  r_dynamic = {CVAR_SAVE, "r_dynamic","1"};
  68 cvar_t  r_waterripple = {CVAR_SAVE, "r_waterripple","0"};
  69 cvar_t  r_fullbrights = {CVAR_SAVE, "r_fullbrights", "1"};
  70
  71 cvar_t  gl_lightmode = {CVAR_SAVE, "gl_lightmode", "1"}; // LordHavoc: overbright lighting
  72 //cvar_t        r_dynamicbothsides = {CVAR_SAVE, "r_dynamicbothsides", "1"}; // LordHavoc: can disable dynamic lighting of backfaces, but quake maps are weird so it doesn't always work right...
  73
  74 cvar_t  gl_fogenable = {0, "gl_fogenable", "0"};
  75 cvar_t  gl_fogdensity = {0, "gl_fogdensity", "0.25"};
  76 cvar_t  gl_fogred = {0, "gl_fogred","0.3"};
  77 cvar_t  gl_foggreen = {0, "gl_foggreen","0.3"};
  78 cvar_t  gl_fogblue = {0, "gl_fogblue","0.3"};
  79 cvar_t  gl_fogstart = {0, "gl_fogstart", "0"};
  80 cvar_t  gl_fogend = {0, "gl_fogend","0"};
  81
  82 cvar_t  r_ser = {CVAR_SAVE, "r_ser", "1"};
  83 cvar_t  gl_viewmodeldepthhack = {0, "gl_viewmodeldepthhack", "1"};
  84
  85 cvar_t r_multitexture = {0, "r_multitexture", "1"};
  86
  87 /*
  88 ====================
  89 R_TimeRefresh_f
  90
  91 For program optimization
  92 ====================
  93 */
  94 qboolean intimerefresh = 0;
  95 static void R_TimeRefresh_f (void)
  96 {
  97         int                     i;
  98         float           start, stop, time;
  99
 100         intimerefresh = 1;
 101         start = Sys_DoubleTime ();
 102         glDrawBuffer (GL_FRONT);
 103         for (i = 0;i < 128;i++)
 104         {
 105                 r_refdef.viewangles[0] = 0;
 106                 r_refdef.viewangles[1] = i/128.0*360.0;
 107                 r_refdef.viewangles[2] = 0;
 108                 R_RenderView();
 109         }
 110         glDrawBuffer  (GL_BACK);
 111
 112         stop = Sys_DoubleTime ();
 113         intimerefresh = 0;
 114         time = stop-start;
 115         Con_Printf ("%f seconds (%f fps)\n", time, 128/time);
 116 }
 117
 118 extern cvar_t r_drawportals;
 119
 120 int R_VisibleCullBox (vec3_t mins, vec3_t maxs)
 121 {
 122         int sides;
 123         mnode_t *nodestack[8192], *node;
 124         int stack = 0;
 125
 126         if (R_CullBox(mins, maxs))
 127                 return true;
 128
 129         node = cl.worldmodel->nodes;
 130 loc0:
 131         if (node->contents < 0)
 132         {
 133                 if (((mleaf_t *)node)->visframe == r_framecount)
 134                         return false;
 135                 if (!stack)
 136                         return true;
 137                 node = nodestack[--stack];
 138                 goto loc0;
 139         }
 140
 141         sides = BOX_ON_PLANE_SIDE(mins, maxs, node->plane);
 142
 143 // recurse down the contacted sides
 144         if (sides & 1)
 145         {
 146                 if (sides & 2) // 3
 147                 {
 148                         // put second child on the stack for later examination
 149                         nodestack[stack++] = node->children[1];
 150                         node = node->children[0];
 151                         goto loc0;
 152                 }
 153                 else // 1
 154                 {
 155                         node = node->children[0];
 156                         goto loc0;
 157                 }
 158         }
 159         // 2
 160         node = node->children[1];
 161         goto loc0;
 162 }
 163
 164 qboolean lighthalf;
 165
 166 vec3_t fogcolor;
 167 vec_t fogdensity;
 168 float fog_density, fog_red, fog_green, fog_blue;
 169 qboolean fogenabled;
 170 qboolean oldgl_fogenable;
 171 void R_SetupFog(void)
 172 {
 173         if (gamemode == GAME_NEHAHRA)
 174         {
 175                 if (gl_fogenable.integer)
 176                 {
 177                         oldgl_fogenable = true;
 178                         fog_density = gl_fogdensity.value;
 179                         fog_red = gl_fogred.value;
 180                         fog_green = gl_foggreen.value;
 181                         fog_blue = gl_fogblue.value;
 182                 }
 183                 else if (oldgl_fogenable)
 184                 {
 185                         oldgl_fogenable = false;
 186                         fog_density = 0;
 187                         fog_red = 0;
 188                         fog_green = 0;
 189                         fog_blue = 0;
 190                 }
 191         }
 192         if (fog_density)
 193         {
 194                 fogcolor[0] = fog_red   = bound(0.0f, fog_red  , 1.0f);
 195                 fogcolor[1] = fog_green = bound(0.0f, fog_green, 1.0f);
 196                 fogcolor[2] = fog_blue  = bound(0.0f, fog_blue , 1.0f);
 197         }
 198         if (fog_density)
 199         {
 200                 fogenabled = true;
 201                 fogdensity = -4000.0f / (fog_density * fog_density);
 202                 // fog color was already set
 203         }
 204         else
 205                 fogenabled = false;
 206 }
 207
 208 // FIXME: move this to client?
 209 void FOG_clear(void)
 210 {
 211         if (gamemode == GAME_NEHAHRA)
 212         {
 213                 Cvar_Set("gl_fogenable", "0");
 214                 Cvar_Set("gl_fogdensity", "0.2");
 215                 Cvar_Set("gl_fogred", "0.3");
 216                 Cvar_Set("gl_foggreen", "0.3");
 217                 Cvar_Set("gl_fogblue", "0.3");
 218         }
 219         fog_density = fog_red = fog_green = fog_blue = 0.0f;
 220 }
 221
 222 // FIXME: move this to client?
 223 void FOG_registercvars(void)
 224 {
 225         if (gamemode == GAME_NEHAHRA)
 226         {
 227                 Cvar_RegisterVariable (&gl_fogenable);
 228                 Cvar_RegisterVariable (&gl_fogdensity);
 229                 Cvar_RegisterVariable (&gl_fogred);
 230                 Cvar_RegisterVariable (&gl_foggreen);
 231                 Cvar_RegisterVariable (&gl_fogblue);
 232                 Cvar_RegisterVariable (&gl_fogstart);
 233                 Cvar_RegisterVariable (&gl_fogend);
 234         }
 235 }
 236
 237 void gl_main_start(void)
 238 {
 239 }
 240
 241 void gl_main_shutdown(void)
 242 {
 243 }
 244
 245 void gl_main_newmap(void)
 246 {
 247         r_framecount = 1;
 248 }
 249
 250 void GL_Main_Init(void)
 251 {
 252 // FIXME: move this to client?
 253         FOG_registercvars();
 254         Cmd_AddCommand ("timerefresh", R_TimeRefresh_f);
 255         Cvar_RegisterVariable (&r_drawentities);
 256         Cvar_RegisterVariable (&r_drawviewmodel);
 257         Cvar_RegisterVariable (&r_speeds);
 258         Cvar_RegisterVariable (&gl_lightmode);
 259 //      Cvar_RegisterVariable (&r_dynamicwater);
 260 //      Cvar_RegisterVariable (&r_dynamicbothsides);
 261         Cvar_RegisterVariable (&r_fullbrights);
 262         Cvar_RegisterVariable (&r_wateralpha);
 263         Cvar_RegisterVariable (&r_dynamic);
 264         Cvar_RegisterVariable (&r_waterripple);
 265         Cvar_RegisterVariable (&r_fullbright);
 266         Cvar_RegisterVariable (&r_ser);
 267         Cvar_RegisterVariable (&gl_viewmodeldepthhack);
 268         Cvar_RegisterVariable (&r_multitexture);
 269         if (gamemode == GAME_NEHAHRA)
 270                 Cvar_SetValue("r_fullbrights", 0);
 271         R_RegisterModule("GL_Main", gl_main_start, gl_main_shutdown, gl_main_newmap);
 272 }
 273
 274 /*
 275 ===============
 276 R_NewMap
 277 ===============
 278 */
 279 void CL_ParseEntityLump(char *entitystring);
 280 void R_NewMap (void)
 281 {
 282         int             i;
 283
 284         for (i=0 ; i<256 ; i++)
 285                 d_lightstylevalue[i] = 264;             // normal light value
 286
 287         r_viewleaf = NULL;
 288         if (cl.worldmodel->entities)
 289                 CL_ParseEntityLump(cl.worldmodel->entities);
 290         R_Modules_NewMap();
 291 }
 292
 293 extern void R_Textures_Init(void);
 294 extern void Mod_RenderInit(void);
 295 extern void GL_Draw_Init(void);
 296 extern void GL_Main_Init(void);
 297 extern void GL_Models_Init(void);
 298 extern void R_Sky_Init(void);
 299 extern void GL_Surf_Init(void);
 300 extern void GL_Screen_Init(void);
 301 extern void R_Crosshairs_Init(void);
 302 extern void R_Light_Init(void);
 303 extern void R_Particles_Init(void);
 304 extern void R_Explosion_Init(void);
 305 extern void R_Clip_Init(void);
 306 extern void ui_init(void);
 307 extern void gl_backend_init(void);
 308
 309 void Render_Init(void)
 310 {
 311         R_Modules_Shutdown();
 312         R_Textures_Init();
 313         Mod_RenderInit();
 314         gl_backend_init();
 315         R_Clip_Init();
 316         GL_Draw_Init();
 317         GL_Main_Init();
 318         GL_Models_Init();
 319         R_Sky_Init();
 320         GL_Surf_Init();
 321         GL_Screen_Init();
 322         R_Crosshairs_Init();
 323         R_Light_Init();
 324         R_Particles_Init();
 325         R_Explosion_Init();
 326         R_Decals_Init();
 327         ui_init();
 328         R_Modules_Start();
 329 }
 330
 331 /*
 332 ===============
 333 GL_Init
 334 ===============
 335 */
 336 extern char *ENGINE_EXTENSIONS;
 337 void GL_Init (void)
 338 {
 339         gl_vendor = glGetString (GL_VENDOR);
 340         Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
 341         gl_renderer = glGetString (GL_RENDERER);
 342         Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
 343
 344         gl_version = glGetString (GL_VERSION);
 345         Con_Printf ("GL_VERSION: %s\n", gl_version);
 346         gl_extensions = glGetString (GL_EXTENSIONS);
 347         Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
 348
 349 //      Con_Printf ("%s %s\n", gl_renderer, gl_version);
 350
 351         VID_CheckExtensions();
 352
 353         // LordHavoc: report supported extensions
 354         Con_Printf ("\nengine extensions: %s\n", ENGINE_EXTENSIONS);
 355
 356         glCullFace(GL_FRONT);
 357         glEnable(GL_TEXTURE_2D);
 358
 359 //      glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
 360 }
 361
 362
 363 //==================================================================================
 364
 365 void R_Entity_Callback(void *data, void *junk)
 366 {
 367         ((entity_render_t *)data)->visframe = r_framecount;
 368 }
 369
 370 static void R_MarkEntities (void)
 371 {
 372         int             i;
 373         vec3_t  v;
 374
 375         if (!r_drawentities.integer)
 376                 return;
 377
 378         for (i = 0;i < r_refdef.numentities;i++)
 379         {
 380                 currentrenderentity = r_refdef.entities[i];
 381                 Mod_CheckLoaded(currentrenderentity->model);
 382
 383                 // move view-relative models to where they should be
 384                 if (currentrenderentity->flags & RENDER_VIEWMODEL)
 385                 {
 386                         // remove flag so it will not be repeated incase RelinkEntities is not called again for a while
 387                         currentrenderentity->flags -= RENDER_VIEWMODEL;
 388                         // transform origin
 389                         VectorCopy(currentrenderentity->origin, v);
 390                         currentrenderentity->origin[0] = v[0] * vpn[0] + v[1] * vright[0] + v[2] * vup[0] + r_origin[0];
 391                         currentrenderentity->origin[1] = v[0] * vpn[1] + v[1] * vright[1] + v[2] * vup[1] + r_origin[1];
 392                         currentrenderentity->origin[2] = v[0] * vpn[2] + v[1] * vright[2] + v[2] * vup[2] + r_origin[2];
 393                         // adjust angles
 394                         VectorAdd(currentrenderentity->angles, r_refdef.viewangles, currentrenderentity->angles);
 395                 }
 396
 397                 if (currentrenderentity->angles[0] || currentrenderentity->angles[2])
 398                 {
 399                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->rotatedmins, currentrenderentity->mins);
 400                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->rotatedmaxs, currentrenderentity->maxs);
 401                 }
 402                 else if (currentrenderentity->angles[1])
 403                 {
 404                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->yawmins, currentrenderentity->mins);
 405                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->yawmaxs, currentrenderentity->maxs);
 406                 }
 407                 else
 408                 {
 409                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->normalmins, currentrenderentity->mins);
 410                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->normalmaxs, currentrenderentity->maxs);
 411                 }
 412                 if (R_VisibleCullBox(currentrenderentity->mins, currentrenderentity->maxs))
 413                         continue;
 414
 415                 R_LerpAnimation(currentrenderentity);
 416                 if (r_ser.integer)
 417                         currentrenderentity->model->SERAddEntity();
 418                 else
 419                         currentrenderentity->visframe = r_framecount;
 420         }
 421 }
 422
 423 // only used if skyrendermasked, and normally returns false
 424 int R_DrawBModelSky (void)
 425 {
 426         int             i, sky = false;
 427
 428         if (!r_drawentities.integer)
 429                 return false;
 430
 431         for (i = 0;i < r_refdef.numentities;i++)
 432         {
 433                 currentrenderentity = r_refdef.entities[i];
 434                 if (currentrenderentity->visframe == r_framecount && currentrenderentity->model->DrawSky)
 435                 {
 436                         currentrenderentity->model->DrawSky();
 437                         sky = true;
 438                 }
 439         }
 440         return sky;
 441 }
 442
 443 void R_DrawModels (void)
 444 {
 445         int             i;
 446
 447         if (!r_drawentities.integer)
 448                 return;
 449
 450         for (i = 0;i < r_refdef.numentities;i++)
 451         {
 452                 currentrenderentity = r_refdef.entities[i];
 453                 if (currentrenderentity->visframe == r_framecount && currentrenderentity->model->Draw)
 454                         currentrenderentity->model->Draw();
 455         }
 456 }
 457
 458 /*
 459 =============
 460 R_DrawViewModel
 461 =============
 462 */
 463 void R_DrawViewModel (void)
 464 {
 465         // FIXME: move these checks to client
 466         if (!r_drawviewmodel.integer || chase_active.integer || envmap || !r_drawentities.integer || cl.items & IT_INVISIBILITY || cl.stats[STAT_HEALTH] <= 0 || !cl.viewent.render.model)
 467                 return;
 468
 469         currentrenderentity = &cl.viewent.render;
 470         Mod_CheckLoaded(currentrenderentity->model);
 471
 472         R_LerpAnimation(currentrenderentity);
 473
 474         // hack the depth range to prevent view model from poking into walls
 475         if (gl_viewmodeldepthhack.integer)
 476         {
 477                 R_Mesh_Render();
 478                 glDepthRange (gldepthmin, gldepthmin + 0.3*(gldepthmax-gldepthmin));
 479         }
 480         currentrenderentity->model->Draw();
 481         if (gl_viewmodeldepthhack.integer)
 482         {
 483                 R_Mesh_Render();
 484                 glDepthRange (gldepthmin, gldepthmax);
 485         }
 486 }
 487
 488 static void R_SetFrustum (void)
 489 {
 490         int             i;
 491
 492         // LordHavoc: note to all quake engine coders, the special case for 90
 493         // degrees assumed a square view (wrong), so I removed it, Quake2 has it
 494         // disabled as well.
 495         // rotate VPN right by FOV_X/2 degrees
 496         RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_refdef.fov_x / 2 ) );
 497         // rotate VPN left by FOV_X/2 degrees
 498         RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_refdef.fov_x / 2 );
 499         // rotate VPN up by FOV_X/2 degrees
 500         RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_refdef.fov_y / 2 );
 501         // rotate VPN down by FOV_X/2 degrees
 502         RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_refdef.fov_y / 2 ) );
 503
 504
 505         for (i=0 ; i<4 ; i++)
 506         {
 507                 frustum[i].type = PLANE_ANYZ;
 508                 frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
 509                 PlaneClassify(&frustum[i]);
 510         }
 511 }
 512
 513 /*
 514 ===============
 515 R_SetupFrame
 516 ===============
 517 */
 518 static void R_SetupFrame (void)
 519 {
 520 // don't allow cheats in multiplayer
 521         if (cl.maxclients > 1)
 522         {
 523                 if (r_fullbright.integer != 0)
 524                         Cvar_Set ("r_fullbright", "0");
 525                 if (r_ambient.value != 0)
 526                         Cvar_Set ("r_ambient", "0");
 527         }
 528         if (r_multitexture.integer && gl_textureunits < 2)
 529                 Cvar_SetValue("r_multitexture", 0);
 530
 531         r_framecount++;
 532
 533 // build the transformation matrix for the given view angles
 534         VectorCopy (r_refdef.vieworg, r_origin);
 535
 536         AngleVectors (r_refdef.viewangles, vpn, vright, vup);
 537
 538 // current viewleaf
 539         r_oldviewleaf = r_viewleaf;
 540         r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
 541
 542 //      r_cache_thrash = false;
 543
 544         R_AnimateLight ();
 545 }
 546
 547
 548 static void MYgluPerspective(GLdouble fovx, GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar )
 549 {
 550         GLdouble xmax, ymax;
 551
 552         xmax = zNear * tan( fovx * M_PI / 360.0 ) * aspect;
 553         ymax = zNear * tan( fovy * M_PI / 360.0 );
 554
 555         if (r_viewleaf->contents != CONTENTS_EMPTY && r_viewleaf->contents != CONTENTS_SOLID)
 556         {
 557                 xmax *= (sin(cl.time * 4.7) * 0.03 + 0.97);
 558                 ymax *= (sin(cl.time * 3.0) * 0.03 + 0.97);
 559         }
 560
 561         glFrustum(-xmax, xmax, -ymax, ymax, zNear, zFar );
 562 }
 563
 564
 565 /*
 566 =============
 567 R_SetupGL
 568 =============
 569 */
 570 static void R_SetupGL (void)
 571 {
 572         if (!r_render.integer)
 573                 return;
 574
 575 //      glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // LordHavoc: moved to SCR_UpdateScreen
 576         gldepthmin = 0;
 577         gldepthmax = 1;
 578         glDepthFunc (GL_LEQUAL);
 579
 580         glDepthRange (gldepthmin, gldepthmax);
 581
 582         // update farclip based on previous frame
 583         r_farclip = r_newfarclip;
 584
 585         // set up viewpoint
 586         glMatrixMode(GL_PROJECTION);
 587         glLoadIdentity ();
 588
 589         // y is weird beause OpenGL is bottom to top, we use top to bottom
 590         glViewport(r_refdef.x, vid.realheight - (r_refdef.y + r_refdef.height), r_refdef.width, r_refdef.height);
 591 //      yfov = 2*atan((float)r_refdef.height/r_refdef.width)*180/M_PI;
 592         MYgluPerspective (r_refdef.fov_x, r_refdef.fov_y, r_refdef.width/r_refdef.height, 4, r_farclip);
 593
 594         glCullFace(GL_FRONT);
 595
 596         glMatrixMode(GL_MODELVIEW);
 597         glLoadIdentity ();
 598
 599         glRotatef (-90,  1, 0, 0);          // put Z going up
 600         glRotatef (90,  0, 0, 1);           // put Z going up
 601         glRotatef (-r_refdef.viewangles[2],  1, 0, 0);
 602         glRotatef (-r_refdef.viewangles[0],  0, 1, 0);
 603         glRotatef (-r_refdef.viewangles[1],  0, 0, 1);
 604         glTranslatef (-r_refdef.vieworg[0],  -r_refdef.vieworg[1],  -r_refdef.vieworg[2]);
 605
 606 //      glGetFloatv (GL_MODELVIEW_MATRIX, r_world_matrix);
 607
 608         //
 609         // set drawing parms
 610         //
 611 //      if (gl_cull.integer)
 612                 glEnable(GL_CULL_FACE);
 613 //      else
 614 //              glDisable(GL_CULL_FACE);
 615
 616         glEnable(GL_BLEND); // was Disable
 617         glEnable(GL_DEPTH_TEST);
 618         glDepthMask(1);
 619 }
 620
 621 static void R_BlendView(void)
 622 {
 623         if (!r_render.integer)
 624                 return;
 625
 626         if (r_refdef.viewblend[3] < 0.01f)
 627                 return;
 628
 629         glMatrixMode(GL_PROJECTION);
 630         glLoadIdentity ();
 631         glOrtho  (0, 1, 1, 0, -99999, 99999);
 632         glMatrixMode(GL_MODELVIEW);
 633         glLoadIdentity ();
 634         glDisable (GL_DEPTH_TEST);
 635         glDisable (GL_CULL_FACE);
 636         glDisable(GL_TEXTURE_2D);
 637         glEnable(GL_BLEND);
 638         glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 639         glBegin (GL_TRIANGLES);
 640         if (lighthalf)
 641                 glColor4f (r_refdef.viewblend[0] * 0.5f, r_refdef.viewblend[1] * 0.5f, r_refdef.viewblend[2] * 0.5f, r_refdef.viewblend[3]);
 642         else
 643                 glColor4fv (r_refdef.viewblend);
 644         glVertex2f (-5, -5);
 645         glVertex2f (10, -5);
 646         glVertex2f (-5, 10);
 647         glEnd ();
 648
 649         glEnable (GL_CULL_FACE);
 650         glEnable (GL_DEPTH_TEST);
 651         glDisable(GL_BLEND);
 652         glEnable(GL_TEXTURE_2D);
 653 }
 654
 655 /*
 656 ================
 657 R_RenderView
 658
 659 r_refdef must be set before the first call
 660 ================
 661 */
 662 void R_RenderView (void)
 663 {
 664         if (!cl.worldmodel)
 665                 Host_Error ("R_RenderView: NULL worldmodel");
 666
 667         // FIXME: move to client
 668         R_MoveExplosions();
 669         R_TimeReport("mexplosion");
 670
 671         R_SetupFrame();
 672         R_SetFrustum();
 673         R_SetupGL();
 674         R_SetupFog();
 675         R_SkyStartFrame();
 676         R_Mesh_Clear();
 677         if (r_ser.integer)
 678                 R_Clip_StartFrame();
 679         R_BuildLightList();
 680
 681         R_TimeReport("setup");
 682
 683         R_DrawWorld();
 684         R_TimeReport("worldnode");
 685
 686         R_MarkEntities();
 687         R_TimeReport("markentity");
 688
 689         if (r_ser.integer)
 690         {
 691                 R_Clip_EndFrame();
 692                 R_TimeReport("hiddensurf");
 693         }
 694
 695         R_MarkWorldLights();
 696         R_TimeReport("marklights");
 697
 698         if (skyrendermasked && R_DrawBModelSky())
 699         {
 700                 R_TimeReport("bmodelsky");
 701         }
 702
 703         R_SetupForWorldRendering();
 704         R_PrepareSurfaces();
 705         R_TimeReport("surfprep");
 706
 707         R_DrawSurfacesAll();
 708         R_TimeReport("surfdraw");
 709
 710         if (r_drawportals.integer)
 711         {
 712                 R_DrawPortals();
 713                 R_TimeReport("portals");
 714         }
 715
 716         // don't let sound skip if going slow
 717         if (!intimerefresh && !r_speeds.integer)
 718                 S_ExtraUpdate ();
 719
 720         R_DrawViewModel();
 721         R_DrawModels();
 722         R_TimeReport("models");
 723
 724         R_DrawDecals();
 725         R_TimeReport("decals");
 726
 727         R_DrawParticles();
 728         R_TimeReport("particles");
 729
 730         R_DrawExplosions();
 731         R_TimeReport("explosions");
 732
 733         // draw transparent meshs
 734         R_Mesh_AddTransparent();
 735         R_TimeReport("addtrans");
 736
 737         R_DrawCoronas();
 738         R_TimeReport("coronas");
 739
 740         // render any queued meshs
 741         R_Mesh_Render();
 742         R_TimeReport("meshrender");
 743
 744         R_BlendView();
 745         R_TimeReport("blendview");
 746
 747         //Mem_CheckSentinelsGlobal();
 748         //R_TimeReport("memtest");
 749 }