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         ui_init();
 327         R_Modules_Start();
 328 }
 329
 330 /*
 331 ===============
 332 GL_Init
 333 ===============
 334 */
 335 extern char *ENGINE_EXTENSIONS;
 336 void GL_Init (void)
 337 {
 338         gl_vendor = glGetString (GL_VENDOR);
 339         Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
 340         gl_renderer = glGetString (GL_RENDERER);
 341         Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
 342
 343         gl_version = glGetString (GL_VERSION);
 344         Con_Printf ("GL_VERSION: %s\n", gl_version);
 345         gl_extensions = glGetString (GL_EXTENSIONS);
 346         Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
 347
 348 //      Con_Printf ("%s %s\n", gl_renderer, gl_version);
 349
 350         VID_CheckExtensions();
 351
 352         // LordHavoc: report supported extensions
 353         Con_Printf ("\nengine extensions: %s\n", ENGINE_EXTENSIONS);
 354
 355         glCullFace(GL_FRONT);
 356         glEnable(GL_TEXTURE_2D);
 357
 358 //      glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
 359 }
 360
 361
 362 //==================================================================================
 363
 364 void R_Entity_Callback(void *data, void *junk)
 365 {
 366         ((entity_render_t *)data)->visframe = r_framecount;
 367 }
 368
 369 static void R_MarkEntities (void)
 370 {
 371         int             i;
 372         vec3_t  v;
 373
 374         if (!r_drawentities.integer)
 375                 return;
 376
 377         for (i = 0;i < r_refdef.numentities;i++)
 378         {
 379                 currentrenderentity = r_refdef.entities[i];
 380                 Mod_CheckLoaded(currentrenderentity->model);
 381
 382                 // move view-relative models to where they should be
 383                 if (currentrenderentity->flags & RENDER_VIEWMODEL)
 384                 {
 385                         // remove flag so it will not be repeated incase RelinkEntities is not called again for a while
 386                         currentrenderentity->flags -= RENDER_VIEWMODEL;
 387                         // transform origin
 388                         VectorCopy(currentrenderentity->origin, v);
 389                         currentrenderentity->origin[0] = v[0] * vpn[0] + v[1] * vright[0] + v[2] * vup[0] + r_origin[0];
 390                         currentrenderentity->origin[1] = v[0] * vpn[1] + v[1] * vright[1] + v[2] * vup[1] + r_origin[1];
 391                         currentrenderentity->origin[2] = v[0] * vpn[2] + v[1] * vright[2] + v[2] * vup[2] + r_origin[2];
 392                         // adjust angles
 393                         VectorAdd(currentrenderentity->angles, r_refdef.viewangles, currentrenderentity->angles);
 394                 }
 395
 396                 if (currentrenderentity->angles[0] || currentrenderentity->angles[2])
 397                 {
 398                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->rotatedmins, currentrenderentity->mins);
 399                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->rotatedmaxs, currentrenderentity->maxs);
 400                 }
 401                 else if (currentrenderentity->angles[1])
 402                 {
 403                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->yawmins, currentrenderentity->mins);
 404                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->yawmaxs, currentrenderentity->maxs);
 405                 }
 406                 else
 407                 {
 408                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->normalmins, currentrenderentity->mins);
 409                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->normalmaxs, currentrenderentity->maxs);
 410                 }
 411                 if (R_VisibleCullBox(currentrenderentity->mins, currentrenderentity->maxs))
 412                         continue;
 413
 414                 R_LerpAnimation(currentrenderentity);
 415                 if (r_ser.integer)
 416                         currentrenderentity->model->SERAddEntity();
 417                 else
 418                         currentrenderentity->visframe = r_framecount;
 419         }
 420 }
 421
 422 // only used if skyrendermasked, and normally returns false
 423 int R_DrawBModelSky (void)
 424 {
 425         int             i, sky = false;
 426
 427         if (!r_drawentities.integer)
 428                 return false;
 429
 430         for (i = 0;i < r_refdef.numentities;i++)
 431         {
 432                 currentrenderentity = r_refdef.entities[i];
 433                 if (currentrenderentity->visframe == r_framecount && currentrenderentity->model->DrawSky)
 434                 {
 435                         currentrenderentity->model->DrawSky();
 436                         sky = true;
 437                 }
 438         }
 439         return sky;
 440 }
 441
 442 void R_DrawModels (void)
 443 {
 444         int             i;
 445
 446         if (!r_drawentities.integer)
 447                 return;
 448
 449         for (i = 0;i < r_refdef.numentities;i++)
 450         {
 451                 currentrenderentity = r_refdef.entities[i];
 452                 if (currentrenderentity->visframe == r_framecount && currentrenderentity->model->Draw)
 453                         currentrenderentity->model->Draw();
 454         }
 455 }
 456
 457 /*
 458 =============
 459 R_DrawViewModel
 460 =============
 461 */
 462 void R_DrawViewModel (void)
 463 {
 464         // FIXME: move these checks to client
 465         if (!r_drawviewmodel.integer || chase_active.integer || envmap || !r_drawentities.integer || cl.items & IT_INVISIBILITY || cl.stats[STAT_HEALTH] <= 0 || !cl.viewent.render.model)
 466                 return;
 467
 468         currentrenderentity = &cl.viewent.render;
 469         Mod_CheckLoaded(currentrenderentity->model);
 470
 471         R_LerpAnimation(currentrenderentity);
 472
 473         // hack the depth range to prevent view model from poking into walls
 474         if (gl_viewmodeldepthhack.integer)
 475         {
 476                 R_Mesh_Render();
 477                 glDepthRange (gldepthmin, gldepthmin + 0.3*(gldepthmax-gldepthmin));
 478         }
 479         currentrenderentity->model->Draw();
 480         if (gl_viewmodeldepthhack.integer)
 481         {
 482                 R_Mesh_Render();
 483                 glDepthRange (gldepthmin, gldepthmax);
 484         }
 485 }
 486
 487 static void R_SetFrustum (void)
 488 {
 489         int             i;
 490
 491         // LordHavoc: note to all quake engine coders, the special case for 90
 492         // degrees assumed a square view (wrong), so I removed it, Quake2 has it
 493         // disabled as well.
 494         // rotate VPN right by FOV_X/2 degrees
 495         RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_refdef.fov_x / 2 ) );
 496         // rotate VPN left by FOV_X/2 degrees
 497         RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_refdef.fov_x / 2 );
 498         // rotate VPN up by FOV_X/2 degrees
 499         RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_refdef.fov_y / 2 );
 500         // rotate VPN down by FOV_X/2 degrees
 501         RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_refdef.fov_y / 2 ) );
 502
 503
 504         for (i=0 ; i<4 ; i++)
 505         {
 506                 frustum[i].type = PLANE_ANYZ;
 507                 frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
 508                 PlaneClassify(&frustum[i]);
 509         }
 510 }
 511
 512 /*
 513 ===============
 514 R_SetupFrame
 515 ===============
 516 */
 517 static void R_SetupFrame (void)
 518 {
 519 // don't allow cheats in multiplayer
 520         if (cl.maxclients > 1)
 521         {
 522                 if (r_fullbright.integer != 0)
 523                         Cvar_Set ("r_fullbright", "0");
 524                 if (r_ambient.value != 0)
 525                         Cvar_Set ("r_ambient", "0");
 526         }
 527         if (r_multitexture.integer && gl_textureunits < 2)
 528                 Cvar_SetValue("r_multitexture", 0);
 529
 530         r_framecount++;
 531
 532 // build the transformation matrix for the given view angles
 533         VectorCopy (r_refdef.vieworg, r_origin);
 534
 535         AngleVectors (r_refdef.viewangles, vpn, vright, vup);
 536
 537 // current viewleaf
 538         r_oldviewleaf = r_viewleaf;
 539         r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
 540
 541 //      r_cache_thrash = false;
 542
 543         R_AnimateLight ();
 544 }
 545
 546
 547 static void MYgluPerspective(GLdouble fovx, GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar )
 548 {
 549         GLdouble xmax, ymax;
 550
 551         xmax = zNear * tan( fovx * M_PI / 360.0 ) * aspect;
 552         ymax = zNear * tan( fovy * M_PI / 360.0 );
 553
 554         if (r_viewleaf->contents != CONTENTS_EMPTY && r_viewleaf->contents != CONTENTS_SOLID)
 555         {
 556                 xmax *= (sin(cl.time * 4.7) * 0.03 + 0.97);
 557                 ymax *= (sin(cl.time * 3.0) * 0.03 + 0.97);
 558         }
 559
 560         glFrustum(-xmax, xmax, -ymax, ymax, zNear, zFar );
 561 }
 562
 563
 564 /*
 565 =============
 566 R_SetupGL
 567 =============
 568 */
 569 static void R_SetupGL (void)
 570 {
 571         if (!r_render.integer)
 572                 return;
 573
 574 //      glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // LordHavoc: moved to SCR_UpdateScreen
 575         gldepthmin = 0;
 576         gldepthmax = 1;
 577         glDepthFunc (GL_LEQUAL);
 578
 579         glDepthRange (gldepthmin, gldepthmax);
 580
 581         // update farclip based on previous frame
 582         r_farclip = r_newfarclip;
 583
 584         // set up viewpoint
 585         glMatrixMode(GL_PROJECTION);
 586         glLoadIdentity ();
 587
 588         // y is weird beause OpenGL is bottom to top, we use top to bottom
 589         glViewport(r_refdef.x, vid.realheight - (r_refdef.y + r_refdef.height), r_refdef.width, r_refdef.height);
 590 //      yfov = 2*atan((float)r_refdef.height/r_refdef.width)*180/M_PI;
 591         MYgluPerspective (r_refdef.fov_x, r_refdef.fov_y, r_refdef.width/r_refdef.height, 4, r_farclip);
 592
 593         glCullFace(GL_FRONT);
 594
 595         glMatrixMode(GL_MODELVIEW);
 596         glLoadIdentity ();
 597
 598         glRotatef (-90,  1, 0, 0);          // put Z going up
 599         glRotatef (90,  0, 0, 1);           // put Z going up
 600         glRotatef (-r_refdef.viewangles[2],  1, 0, 0);
 601         glRotatef (-r_refdef.viewangles[0],  0, 1, 0);
 602         glRotatef (-r_refdef.viewangles[1],  0, 0, 1);
 603         glTranslatef (-r_refdef.vieworg[0],  -r_refdef.vieworg[1],  -r_refdef.vieworg[2]);
 604
 605 //      glGetFloatv (GL_MODELVIEW_MATRIX, r_world_matrix);
 606
 607         //
 608         // set drawing parms
 609         //
 610 //      if (gl_cull.integer)
 611                 glEnable(GL_CULL_FACE);
 612 //      else
 613 //              glDisable(GL_CULL_FACE);
 614
 615         glEnable(GL_BLEND); // was Disable
 616         glEnable(GL_DEPTH_TEST);
 617         glDepthMask(1);
 618 }
 619
 620 static void R_BlendView(void)
 621 {
 622         if (!r_render.integer)
 623                 return;
 624
 625         if (r_refdef.viewblend[3] < 0.01f)
 626                 return;
 627
 628         glMatrixMode(GL_PROJECTION);
 629         glLoadIdentity ();
 630         glOrtho  (0, 1, 1, 0, -99999, 99999);
 631         glMatrixMode(GL_MODELVIEW);
 632         glLoadIdentity ();
 633         glDisable (GL_DEPTH_TEST);
 634         glDisable (GL_CULL_FACE);
 635         glDisable(GL_TEXTURE_2D);
 636         glEnable(GL_BLEND);
 637         glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 638         glBegin (GL_TRIANGLES);
 639         if (lighthalf)
 640                 glColor4f (r_refdef.viewblend[0] * 0.5f, r_refdef.viewblend[1] * 0.5f, r_refdef.viewblend[2] * 0.5f, r_refdef.viewblend[3]);
 641         else
 642                 glColor4fv (r_refdef.viewblend);
 643         glVertex2f (-5, -5);
 644         glVertex2f (10, -5);
 645         glVertex2f (-5, 10);
 646         glEnd ();
 647
 648         glEnable (GL_CULL_FACE);
 649         glEnable (GL_DEPTH_TEST);
 650         glDisable(GL_BLEND);
 651         glEnable(GL_TEXTURE_2D);
 652 }
 653
 654 /*
 655 ================
 656 R_RenderView
 657
 658 r_refdef must be set before the first call
 659 ================
 660 */
 661 void R_RenderView (void)
 662 {
 663         if (!cl.worldmodel)
 664                 Host_Error ("R_RenderView: NULL worldmodel");
 665
 666         // FIXME: move to client
 667         R_MoveExplosions();
 668         R_TimeReport("mexplosion");
 669
 670         R_SetupFrame();
 671         R_SetFrustum();
 672         R_SetupGL();
 673         R_SetupFog();
 674         R_SkyStartFrame();
 675         R_Mesh_Clear();
 676         if (r_ser.integer)
 677                 R_Clip_StartFrame();
 678         R_BuildLightList();
 679
 680         R_TimeReport("setup");
 681
 682         R_DrawWorld();
 683         R_TimeReport("worldnode");
 684
 685         R_MarkEntities();
 686         R_TimeReport("markentity");
 687
 688         if (r_ser.integer)
 689         {
 690                 R_Clip_EndFrame();
 691                 R_TimeReport("hiddensurf");
 692         }
 693
 694         R_MarkWorldLights();
 695         R_TimeReport("marklights");
 696
 697         if (skyrendermasked)
 698         {
 699                 if (R_DrawBModelSky())
 700                         R_TimeReport("bmodelsky");
 701         }
 702         else
 703         {
 704                 R_DrawViewModel();
 705                 R_TimeReport("viewmodel");
 706         }
 707
 708         R_SetupForWorldRendering();
 709         R_PrepareSurfaces();
 710         R_TimeReport("surfprep");
 711
 712         R_DrawSurfaces(SHADERSTAGE_SKY);
 713         R_DrawSurfaces(SHADERSTAGE_NORMAL);
 714         R_DrawSurfaces(SHADERSTAGE_FOG);
 715         R_TimeReport("surfdraw");
 716
 717         if (r_drawportals.integer)
 718         {
 719                 R_DrawPortals();
 720                 R_TimeReport("portals");
 721         }
 722
 723         // don't let sound skip if going slow
 724         if (!intimerefresh && !r_speeds.integer)
 725                 S_ExtraUpdate ();
 726
 727         if (skyrendermasked)
 728         {
 729                 R_DrawViewModel();
 730                 R_TimeReport("viewmodel");
 731         }
 732
 733         R_DrawModels();
 734         R_TimeReport("models");
 735
 736         R_DrawParticles();
 737         R_TimeReport("particles");
 738
 739         R_DrawExplosions();
 740         R_TimeReport("explosions");
 741
 742         // draw transparent meshs
 743         R_Mesh_AddTransparent();
 744         R_TimeReport("addtrans");
 745
 746         R_DrawCoronas();
 747         R_TimeReport("coronas");
 748
 749         // render any queued meshs
 750         R_Mesh_Render();
 751         R_TimeReport("meshrender");
 752
 753         R_BlendView();
 754         R_TimeReport("blendview");
 755
 756         //Mem_CheckSentinelsGlobal();
 757         //R_TimeReport("memtest");
 758 }