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        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...
  72
  73 cvar_t  gl_fogenable = {0, "gl_fogenable", "0"};
  74 cvar_t  gl_fogdensity = {0, "gl_fogdensity", "0.25"};
  75 cvar_t  gl_fogred = {0, "gl_fogred","0.3"};
  76 cvar_t  gl_foggreen = {0, "gl_foggreen","0.3"};
  77 cvar_t  gl_fogblue = {0, "gl_fogblue","0.3"};
  78 cvar_t  gl_fogstart = {0, "gl_fogstart", "0"};
  79 cvar_t  gl_fogend = {0, "gl_fogend","0"};
  80
  81 cvar_t  r_ser = {CVAR_SAVE, "r_ser", "1"};
  82 //cvar_t        gl_viewmodeldepthhack = {0, "gl_viewmodeldepthhack", "1"};
  83
  84 cvar_t r_multitexture = {0, "r_multitexture", "1"};
  85
  86 /*
  87 ====================
  88 R_TimeRefresh_f
  89
  90 For program optimization
  91 ====================
  92 */
  93 qboolean intimerefresh = 0;
  94 static void R_TimeRefresh_f (void)
  95 {
  96         int                     i;
  97         float           start, stop, time;
  98
  99         intimerefresh = 1;
 100         start = Sys_DoubleTime ();
 101         glDrawBuffer (GL_FRONT);
 102         for (i = 0;i < 128;i++)
 103         {
 104                 r_refdef.viewangles[0] = 0;
 105                 r_refdef.viewangles[1] = i/128.0*360.0;
 106                 r_refdef.viewangles[2] = 0;
 107                 R_RenderView();
 108         }
 109         glDrawBuffer  (GL_BACK);
 110
 111         stop = Sys_DoubleTime ();
 112         intimerefresh = 0;
 113         time = stop-start;
 114         Con_Printf ("%f seconds (%f fps)\n", time, 128/time);
 115 }
 116
 117 extern cvar_t r_drawportals;
 118
 119 int R_VisibleCullBox (vec3_t mins, vec3_t maxs)
 120 {
 121         int sides;
 122         mnode_t *nodestack[8192], *node;
 123         int stack = 0;
 124
 125         if (R_CullBox(mins, maxs))
 126                 return true;
 127
 128         node = cl.worldmodel->nodes;
 129 loc0:
 130         if (node->contents < 0)
 131         {
 132                 if (((mleaf_t *)node)->visframe == r_framecount)
 133                         return false;
 134                 if (!stack)
 135                         return true;
 136                 node = nodestack[--stack];
 137                 goto loc0;
 138         }
 139
 140         sides = BOX_ON_PLANE_SIDE(mins, maxs, node->plane);
 141
 142 // recurse down the contacted sides
 143         if (sides & 1)
 144         {
 145                 if (sides & 2) // 3
 146                 {
 147                         // put second child on the stack for later examination
 148                         nodestack[stack++] = node->children[1];
 149                         node = node->children[0];
 150                         goto loc0;
 151                 }
 152                 else // 1
 153                 {
 154                         node = node->children[0];
 155                         goto loc0;
 156                 }
 157         }
 158         // 2
 159         node = node->children[1];
 160         goto loc0;
 161 }
 162
 163 vec3_t fogcolor;
 164 vec_t fogdensity;
 165 float fog_density, fog_red, fog_green, fog_blue;
 166 qboolean fogenabled;
 167 qboolean oldgl_fogenable;
 168 void R_SetupFog(void)
 169 {
 170         if (gamemode == GAME_NEHAHRA)
 171         {
 172                 if (gl_fogenable.integer)
 173                 {
 174                         oldgl_fogenable = true;
 175                         fog_density = gl_fogdensity.value;
 176                         fog_red = gl_fogred.value;
 177                         fog_green = gl_foggreen.value;
 178                         fog_blue = gl_fogblue.value;
 179                 }
 180                 else if (oldgl_fogenable)
 181                 {
 182                         oldgl_fogenable = false;
 183                         fog_density = 0;
 184                         fog_red = 0;
 185                         fog_green = 0;
 186                         fog_blue = 0;
 187                 }
 188         }
 189         if (fog_density)
 190         {
 191                 fogcolor[0] = fog_red   = bound(0.0f, fog_red  , 1.0f);
 192                 fogcolor[1] = fog_green = bound(0.0f, fog_green, 1.0f);
 193                 fogcolor[2] = fog_blue  = bound(0.0f, fog_blue , 1.0f);
 194         }
 195         if (fog_density)
 196         {
 197                 fogenabled = true;
 198                 fogdensity = -4000.0f / (fog_density * fog_density);
 199                 // fog color was already set
 200         }
 201         else
 202                 fogenabled = false;
 203 }
 204
 205 // FIXME: move this to client?
 206 void FOG_clear(void)
 207 {
 208         if (gamemode == GAME_NEHAHRA)
 209         {
 210                 Cvar_Set("gl_fogenable", "0");
 211                 Cvar_Set("gl_fogdensity", "0.2");
 212                 Cvar_Set("gl_fogred", "0.3");
 213                 Cvar_Set("gl_foggreen", "0.3");
 214                 Cvar_Set("gl_fogblue", "0.3");
 215         }
 216         fog_density = fog_red = fog_green = fog_blue = 0.0f;
 217 }
 218
 219 // FIXME: move this to client?
 220 void FOG_registercvars(void)
 221 {
 222         if (gamemode == GAME_NEHAHRA)
 223         {
 224                 Cvar_RegisterVariable (&gl_fogenable);
 225                 Cvar_RegisterVariable (&gl_fogdensity);
 226                 Cvar_RegisterVariable (&gl_fogred);
 227                 Cvar_RegisterVariable (&gl_foggreen);
 228                 Cvar_RegisterVariable (&gl_fogblue);
 229                 Cvar_RegisterVariable (&gl_fogstart);
 230                 Cvar_RegisterVariable (&gl_fogend);
 231         }
 232 }
 233
 234 void gl_main_start(void)
 235 {
 236 }
 237
 238 void gl_main_shutdown(void)
 239 {
 240 }
 241
 242 void gl_main_newmap(void)
 243 {
 244         r_framecount = 1;
 245 }
 246
 247 void GL_Main_Init(void)
 248 {
 249 // FIXME: move this to client?
 250         FOG_registercvars();
 251         Cmd_AddCommand ("timerefresh", R_TimeRefresh_f);
 252         Cvar_RegisterVariable (&r_drawentities);
 253         Cvar_RegisterVariable (&r_drawviewmodel);
 254         Cvar_RegisterVariable (&r_speeds);
 255 //      Cvar_RegisterVariable (&r_dynamicwater);
 256 //      Cvar_RegisterVariable (&r_dynamicbothsides);
 257         Cvar_RegisterVariable (&r_fullbrights);
 258         Cvar_RegisterVariable (&r_wateralpha);
 259         Cvar_RegisterVariable (&r_dynamic);
 260         Cvar_RegisterVariable (&r_waterripple);
 261         Cvar_RegisterVariable (&r_fullbright);
 262         Cvar_RegisterVariable (&r_ser);
 263 //      Cvar_RegisterVariable (&gl_viewmodeldepthhack);
 264         Cvar_RegisterVariable (&r_multitexture);
 265         if (gamemode == GAME_NEHAHRA)
 266                 Cvar_SetValue("r_fullbrights", 0);
 267         R_RegisterModule("GL_Main", gl_main_start, gl_main_shutdown, gl_main_newmap);
 268 }
 269
 270 /*
 271 ===============
 272 R_NewMap
 273 ===============
 274 */
 275 void CL_ParseEntityLump(char *entitystring);
 276 void R_NewMap (void)
 277 {
 278         int             i;
 279
 280         for (i=0 ; i<256 ; i++)
 281                 d_lightstylevalue[i] = 264;             // normal light value
 282
 283         r_viewleaf = NULL;
 284         if (cl.worldmodel->entities)
 285                 CL_ParseEntityLump(cl.worldmodel->entities);
 286         R_Modules_NewMap();
 287 }
 288
 289 extern void R_Textures_Init(void);
 290 extern void Mod_RenderInit(void);
 291 extern void GL_Draw_Init(void);
 292 extern void GL_Main_Init(void);
 293 extern void GL_Models_Init(void);
 294 extern void R_Sky_Init(void);
 295 extern void GL_Surf_Init(void);
 296 extern void R_Crosshairs_Init(void);
 297 extern void R_Light_Init(void);
 298 extern void R_Particles_Init(void);
 299 extern void R_Explosion_Init(void);
 300 extern void R_Clip_Init(void);
 301 extern void ui_init(void);
 302 extern void gl_backend_init(void);
 303
 304 void Render_Init(void)
 305 {
 306         R_Modules_Shutdown();
 307         R_Textures_Init();
 308         Mod_RenderInit();
 309         gl_backend_init();
 310         R_Clip_Init();
 311         GL_Draw_Init();
 312         GL_Main_Init();
 313         GL_Models_Init();
 314         R_Sky_Init();
 315         GL_Surf_Init();
 316         R_Crosshairs_Init();
 317         R_Light_Init();
 318         R_Particles_Init();
 319         R_Explosion_Init();
 320         ui_init();
 321         R_Modules_Start();
 322 }
 323
 324 /*
 325 ===============
 326 GL_Init
 327 ===============
 328 */
 329 extern char *ENGINE_EXTENSIONS;
 330 void GL_Init (void)
 331 {
 332         gl_vendor = glGetString (GL_VENDOR);
 333         Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
 334         gl_renderer = glGetString (GL_RENDERER);
 335         Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
 336
 337         gl_version = glGetString (GL_VERSION);
 338         Con_Printf ("GL_VERSION: %s\n", gl_version);
 339         gl_extensions = glGetString (GL_EXTENSIONS);
 340         Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
 341
 342 //      Con_Printf ("%s %s\n", gl_renderer, gl_version);
 343
 344         VID_CheckExtensions();
 345
 346         // LordHavoc: report supported extensions
 347         Con_Printf ("\nengine extensions: %s\n", ENGINE_EXTENSIONS);
 348
 349         glCullFace(GL_FRONT);
 350         glEnable(GL_TEXTURE_2D);
 351
 352 //      glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
 353 }
 354
 355
 356 //==================================================================================
 357
 358 void R_Entity_Callback(void *data, void *junk)
 359 {
 360         ((entity_render_t *)data)->visframe = r_framecount;
 361 }
 362
 363 static void R_MarkEntities (void)
 364 {
 365         int             i;
 366         vec3_t  v;
 367
 368         if (!r_drawentities.integer)
 369                 return;
 370
 371         for (i = 0;i < r_refdef.numentities;i++)
 372         {
 373                 currentrenderentity = r_refdef.entities[i];
 374                 Mod_CheckLoaded(currentrenderentity->model);
 375
 376                 // move view-relative models to where they should be
 377                 if (currentrenderentity->flags & RENDER_VIEWMODEL)
 378                 {
 379                         // remove flag so it will not be repeated incase RelinkEntities is not called again for a while
 380                         currentrenderentity->flags -= RENDER_VIEWMODEL;
 381                         // transform origin
 382                         VectorCopy(currentrenderentity->origin, v);
 383                         currentrenderentity->origin[0] = v[0] * vpn[0] + v[1] * vright[0] + v[2] * vup[0] + r_origin[0];
 384                         currentrenderentity->origin[1] = v[0] * vpn[1] + v[1] * vright[1] + v[2] * vup[1] + r_origin[1];
 385                         currentrenderentity->origin[2] = v[0] * vpn[2] + v[1] * vright[2] + v[2] * vup[2] + r_origin[2];
 386                         // adjust angles
 387                         VectorAdd(currentrenderentity->angles, r_refdef.viewangles, currentrenderentity->angles);
 388                 }
 389
 390                 if (currentrenderentity->angles[0] || currentrenderentity->angles[2])
 391                 {
 392                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->rotatedmins, currentrenderentity->mins);
 393                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->rotatedmaxs, currentrenderentity->maxs);
 394                 }
 395                 else if (currentrenderentity->angles[1])
 396                 {
 397                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->yawmins, currentrenderentity->mins);
 398                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->yawmaxs, currentrenderentity->maxs);
 399                 }
 400                 else
 401                 {
 402                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->normalmins, currentrenderentity->mins);
 403                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->normalmaxs, currentrenderentity->maxs);
 404                 }
 405                 if (R_VisibleCullBox(currentrenderentity->mins, currentrenderentity->maxs))
 406                         continue;
 407
 408                 R_LerpAnimation(currentrenderentity);
 409                 if (r_ser.integer)
 410                         currentrenderentity->model->SERAddEntity();
 411                 else
 412                         currentrenderentity->visframe = r_framecount;
 413         }
 414 }
 415
 416 // only used if skyrendermasked, and normally returns false
 417 int R_DrawBModelSky (void)
 418 {
 419         int             i, sky = false;
 420
 421         if (!r_drawentities.integer)
 422                 return false;
 423
 424         for (i = 0;i < r_refdef.numentities;i++)
 425         {
 426                 currentrenderentity = r_refdef.entities[i];
 427                 if (currentrenderentity->visframe == r_framecount && currentrenderentity->model->DrawSky)
 428                 {
 429                         currentrenderentity->model->DrawSky();
 430                         sky = true;
 431                 }
 432         }
 433         return sky;
 434 }
 435
 436 void R_DrawModels (void)
 437 {
 438         int             i;
 439
 440         if (!r_drawentities.integer)
 441                 return;
 442
 443         for (i = 0;i < r_refdef.numentities;i++)
 444         {
 445                 currentrenderentity = r_refdef.entities[i];
 446                 if (currentrenderentity->visframe == r_framecount && currentrenderentity->model->Draw)
 447                         currentrenderentity->model->Draw();
 448         }
 449 }
 450
 451 /*
 452 =============
 453 R_DrawViewModel
 454 =============
 455 */
 456 void R_DrawViewModel (void)
 457 {
 458         // FIXME: move these checks to client
 459         if (!r_drawviewmodel.integer || chase_active.integer || envmap || !r_drawentities.integer || cl.items & IT_INVISIBILITY || cl.stats[STAT_HEALTH] <= 0 || !cl.viewent.render.model)
 460                 return;
 461
 462         currentrenderentity = &cl.viewent.render;
 463         Mod_CheckLoaded(currentrenderentity->model);
 464
 465         R_LerpAnimation(currentrenderentity);
 466
 467         // hack the depth range to prevent view model from poking into walls
 468 //      if (gl_viewmodeldepthhack.integer)
 469 //      {
 470 //              R_Mesh_Render();
 471 //              glDepthRange (gldepthmin, gldepthmin + 0.3*(gldepthmax-gldepthmin));
 472 //      }
 473         currentrenderentity->model->Draw();
 474 //      if (gl_viewmodeldepthhack.integer)
 475 //      {
 476 //              R_Mesh_Render();
 477 //              glDepthRange (gldepthmin, gldepthmax);
 478 //      }
 479 }
 480
 481 static void R_SetFrustum (void)
 482 {
 483         int             i;
 484
 485         // LordHavoc: note to all quake engine coders, the special case for 90
 486         // degrees assumed a square view (wrong), so I removed it, Quake2 has it
 487         // disabled as well.
 488         // rotate VPN right by FOV_X/2 degrees
 489         RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_refdef.fov_x / 2 ) );
 490         // rotate VPN left by FOV_X/2 degrees
 491         RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_refdef.fov_x / 2 );
 492         // rotate VPN up by FOV_X/2 degrees
 493         RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_refdef.fov_y / 2 );
 494         // rotate VPN down by FOV_X/2 degrees
 495         RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_refdef.fov_y / 2 ) );
 496
 497
 498         for (i=0 ; i<4 ; i++)
 499         {
 500                 frustum[i].type = PLANE_ANYZ;
 501                 frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
 502                 PlaneClassify(&frustum[i]);
 503         }
 504 }
 505
 506 /*
 507 ===============
 508 R_SetupFrame
 509 ===============
 510 */
 511 static void R_SetupFrame (void)
 512 {
 513 // don't allow cheats in multiplayer
 514         if (cl.maxclients > 1)
 515         {
 516                 if (r_fullbright.integer != 0)
 517                         Cvar_Set ("r_fullbright", "0");
 518                 if (r_ambient.value != 0)
 519                         Cvar_Set ("r_ambient", "0");
 520         }
 521         if (r_multitexture.integer && gl_textureunits < 2)
 522                 Cvar_SetValue("r_multitexture", 0);
 523
 524         r_framecount++;
 525
 526 // build the transformation matrix for the given view angles
 527         VectorCopy (r_refdef.vieworg, r_origin);
 528
 529         AngleVectors (r_refdef.viewangles, vpn, vright, vup);
 530
 531 // current viewleaf
 532         r_oldviewleaf = r_viewleaf;
 533         r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
 534
 535 //      r_cache_thrash = false;
 536
 537         R_AnimateLight ();
 538 }
 539
 540
 541 static int blendviewpolyindex[3] = {0, 1, 2};
 542
 543 static void R_BlendView(void)
 544 {
 545         rmeshinfo_t m;
 546         float tvxyz[3][4], r;
 547
 548         if (!r_render.integer)
 549                 return;
 550
 551         if (r_refdef.viewblend[3] < 0.01f)
 552                 return;
 553
 554         memset(&m, 0, sizeof(m));
 555         m.transparent = false;
 556         m.blendfunc1 = GL_SRC_ALPHA;
 557         m.blendfunc2 = GL_ONE;
 558         m.depthdisable = true; // magic
 559         m.numtriangles = 1;
 560         m.numverts = 3;
 561         m.index = blendviewpolyindex;
 562         m.vertex = &tvxyz[0][0];
 563         m.vertexstep = sizeof(float[4]);
 564         m.cr = r_refdef.viewblend[0];
 565         m.cg = r_refdef.viewblend[1];
 566         m.cb = r_refdef.viewblend[2];
 567         m.ca = r_refdef.viewblend[3];
 568         r = 64000;
 569         tvxyz[0][0] = r_origin[0] + vpn[0] * 1.5 - vright[0] * r - vup[0] * r;
 570         tvxyz[0][1] = r_origin[1] + vpn[1] * 1.5 - vright[1] * r - vup[1] * r;
 571         tvxyz[0][2] = r_origin[2] + vpn[2] * 1.5 - vright[2] * r - vup[2] * r;
 572         r *= 3;
 573         tvxyz[1][0] = tvxyz[0][0] + vup[0] * r;
 574         tvxyz[1][1] = tvxyz[0][1] + vup[1] * r;
 575         tvxyz[1][2] = tvxyz[0][2] + vup[2] * r;
 576         tvxyz[2][0] = tvxyz[0][0] + vright[0] * r;
 577         tvxyz[2][1] = tvxyz[0][1] + vright[1] * r;
 578         tvxyz[2][2] = tvxyz[0][2] + vright[2] * r;
 579         R_Mesh_Draw(&m);
 580
 581         /*
 582         glMatrixMode(GL_PROJECTION);
 583         glLoadIdentity ();
 584         glOrtho  (0, 1, 1, 0, -99999, 99999);
 585         glMatrixMode(GL_MODELVIEW);
 586         glLoadIdentity ();
 587         glDisable (GL_DEPTH_TEST);
 588         glDisable (GL_CULL_FACE);
 589         glDisable(GL_TEXTURE_2D);
 590         glEnable(GL_BLEND);
 591         glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 592         glBegin (GL_TRIANGLES);
 593         glColor4f (r_refdef.viewblend[0] * overbrightscale, r_refdef.viewblend[1] * overbrightscale, r_refdef.viewblend[2] * overbrightscale, r_refdef.viewblend[3]);
 594         glVertex2f (-5, -5);
 595         glVertex2f (10, -5);
 596         glVertex2f (-5, 10);
 597         glEnd ();
 598
 599         glEnable (GL_CULL_FACE);
 600         glEnable (GL_DEPTH_TEST);
 601         glDisable(GL_BLEND);
 602         glEnable(GL_TEXTURE_2D);
 603         */
 604 }
 605
 606 /*
 607 ================
 608 R_RenderView
 609
 610 r_refdef must be set before the first call
 611 ================
 612 */
 613 void R_RenderView (void)
 614 {
 615         if (!cl.worldmodel)
 616                 return; //Host_Error ("R_RenderView: NULL worldmodel");
 617
 618         // FIXME: move to client
 619         R_MoveExplosions();
 620         R_TimeReport("mexplosion");
 621
 622         R_SetupFrame();
 623         R_SetFrustum();
 624         R_SetupFog();
 625         R_SkyStartFrame();
 626         if (r_ser.integer)
 627                 R_Clip_StartFrame();
 628         R_BuildLightList();
 629
 630         R_Mesh_Start();
 631
 632         R_TimeReport("setup");
 633
 634         R_DrawWorld();
 635         R_TimeReport("worldnode");
 636
 637         R_MarkEntities();
 638         R_TimeReport("markentity");
 639
 640         if (r_ser.integer)
 641         {
 642                 R_Clip_EndFrame();
 643                 R_TimeReport("hiddensurf");
 644         }
 645
 646         R_MarkWorldLights();
 647         R_TimeReport("marklights");
 648
 649         if (skyrendermasked)
 650         {
 651                 if (R_DrawBModelSky())
 652                         R_TimeReport("bmodelsky");
 653         }
 654         else
 655         {
 656                 R_DrawViewModel();
 657                 R_TimeReport("viewmodel");
 658         }
 659
 660         R_SetupForWorldRendering();
 661         R_PrepareSurfaces();
 662         R_TimeReport("surfprep");
 663
 664         R_DrawSurfaces(SHADERSTAGE_SKY);
 665         R_DrawSurfaces(SHADERSTAGE_NORMAL);
 666         R_DrawSurfaces(SHADERSTAGE_FOG);
 667         R_TimeReport("surfdraw");
 668
 669         if (r_drawportals.integer)
 670         {
 671                 R_DrawPortals();
 672                 R_TimeReport("portals");
 673         }
 674
 675         // don't let sound skip if going slow
 676         if (!intimerefresh && !r_speeds.integer)
 677                 S_ExtraUpdate ();
 678
 679         if (skyrendermasked)
 680         {
 681                 R_DrawViewModel();
 682                 R_TimeReport("viewmodel");
 683         }
 684
 685         R_DrawModels();
 686         R_TimeReport("models");
 687
 688         R_DrawParticles();
 689         R_TimeReport("particles");
 690
 691         R_DrawExplosions();
 692         R_TimeReport("explosions");
 693
 694         // draw transparent meshs
 695         R_Mesh_AddTransparent();
 696         R_TimeReport("addtrans");
 697
 698         R_DrawCoronas();
 699         R_TimeReport("coronas");
 700
 701         R_BlendView();
 702         R_TimeReport("blendview");
 703
 704         // render any queued meshs
 705         R_Mesh_Finish();
 706         R_TimeReport("meshfinish");
 707
 708         //Mem_CheckSentinelsGlobal();
 709         //R_TimeReport("memtest");
 710 }