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_render_t *currentrenderentity;
  25
  26 // used for dlight push checking and other things
  27 int r_framecount;
  28
  29 mplane_t frustum[4];
  30
  31 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;
  32
  33 // true during envmap command capture
  34 qboolean envmap;
  35
  36 float r_farclip;
  37
  38 // view origin
  39 vec3_t r_origin;
  40 vec3_t vpn;
  41 vec3_t vright;
  42 vec3_t vup;
  43
  44 //
  45 // screen size info
  46 //
  47 refdef_t r_refdef;
  48
  49 mleaf_t *r_viewleaf, *r_oldviewleaf;
  50
  51 // 8.8 fraction of base light value
  52 unsigned short d_lightstylevalue[256];
  53
  54 cvar_t r_drawentities = {0, "r_drawentities","1"};
  55 cvar_t r_drawviewmodel = {0, "r_drawviewmodel","1"};
  56 cvar_t r_speeds = {0, "r_speeds","0"};
  57 cvar_t r_fullbright = {0, "r_fullbright","0"};
  58 cvar_t r_wateralpha = {CVAR_SAVE, "r_wateralpha","1"};
  59 cvar_t r_dynamic = {CVAR_SAVE, "r_dynamic","1"};
  60 cvar_t r_waterripple = {CVAR_SAVE, "r_waterripple","0"};
  61 cvar_t r_fullbrights = {CVAR_SAVE, "r_fullbrights", "1"};
  62
  63 cvar_t gl_fogenable = {0, "gl_fogenable", "0"};
  64 cvar_t gl_fogdensity = {0, "gl_fogdensity", "0.25"};
  65 cvar_t gl_fogred = {0, "gl_fogred","0.3"};
  66 cvar_t gl_foggreen = {0, "gl_foggreen","0.3"};
  67 cvar_t gl_fogblue = {0, "gl_fogblue","0.3"};
  68 cvar_t gl_fogstart = {0, "gl_fogstart", "0"};
  69 cvar_t gl_fogend = {0, "gl_fogend","0"};
  70
  71 cvar_t r_multitexture = {0, "r_multitexture", "1"};
  72
  73 /*
  74 ====================
  75 R_TimeRefresh_f
  76
  77 For program optimization
  78 ====================
  79 */
  80 qboolean intimerefresh = 0;
  81 static void R_TimeRefresh_f (void)
  82 {
  83         int i;
  84         float start, stop, time;
  85
  86         intimerefresh = 1;
  87         start = Sys_DoubleTime ();
  88         for (i = 0;i < 128;i++)
  89         {
  90                 r_refdef.viewangles[0] = 0;
  91                 r_refdef.viewangles[1] = i/128.0*360.0;
  92                 r_refdef.viewangles[2] = 0;
  93                 CL_UpdateScreen();
  94         }
  95
  96         stop = Sys_DoubleTime ();
  97         intimerefresh = 0;
  98         time = stop-start;
  99         Con_Printf ("%f seconds (%f fps)\n", time, 128/time);
 100 }
 101
 102 extern cvar_t r_drawportals;
 103
 104 int R_VisibleCullBox (vec3_t mins, vec3_t maxs)
 105 {
 106         int sides;
 107         mnode_t *nodestack[8192], *node;
 108         int stack = 0;
 109
 110         if (R_CullBox(mins, maxs))
 111                 return true;
 112
 113         node = cl.worldmodel->nodes;
 114 loc0:
 115         if (node->contents < 0)
 116         {
 117                 if (((mleaf_t *)node)->visframe == r_framecount)
 118                         return false;
 119                 if (!stack)
 120                         return true;
 121                 node = nodestack[--stack];
 122                 goto loc0;
 123         }
 124
 125         sides = BOX_ON_PLANE_SIDE(mins, maxs, node->plane);
 126
 127 // recurse down the contacted sides
 128         if (sides & 1)
 129         {
 130                 if (sides & 2) // 3
 131                 {
 132                         // put second child on the stack for later examination
 133                         nodestack[stack++] = node->children[1];
 134                         node = node->children[0];
 135                         goto loc0;
 136                 }
 137                 else // 1
 138                 {
 139                         node = node->children[0];
 140                         goto loc0;
 141                 }
 142         }
 143         // 2
 144         node = node->children[1];
 145         goto loc0;
 146 }
 147
 148 vec3_t fogcolor;
 149 vec_t fogdensity;
 150 float fog_density, fog_red, fog_green, fog_blue;
 151 qboolean fogenabled;
 152 qboolean oldgl_fogenable;
 153 void R_SetupFog(void)
 154 {
 155         if (gamemode == GAME_NEHAHRA)
 156         {
 157                 if (gl_fogenable.integer)
 158                 {
 159                         oldgl_fogenable = true;
 160                         fog_density = gl_fogdensity.value;
 161                         fog_red = gl_fogred.value;
 162                         fog_green = gl_foggreen.value;
 163                         fog_blue = gl_fogblue.value;
 164                 }
 165                 else if (oldgl_fogenable)
 166                 {
 167                         oldgl_fogenable = false;
 168                         fog_density = 0;
 169                         fog_red = 0;
 170                         fog_green = 0;
 171                         fog_blue = 0;
 172                 }
 173         }
 174         if (fog_density)
 175         {
 176                 fogcolor[0] = fog_red   = bound(0.0f, fog_red  , 1.0f);
 177                 fogcolor[1] = fog_green = bound(0.0f, fog_green, 1.0f);
 178                 fogcolor[2] = fog_blue  = bound(0.0f, fog_blue , 1.0f);
 179         }
 180         if (fog_density)
 181         {
 182                 fogenabled = true;
 183                 fogdensity = -4000.0f / (fog_density * fog_density);
 184                 // fog color was already set
 185         }
 186         else
 187                 fogenabled = false;
 188 }
 189
 190 // FIXME: move this to client?
 191 void FOG_clear(void)
 192 {
 193         if (gamemode == GAME_NEHAHRA)
 194         {
 195                 Cvar_Set("gl_fogenable", "0");
 196                 Cvar_Set("gl_fogdensity", "0.2");
 197                 Cvar_Set("gl_fogred", "0.3");
 198                 Cvar_Set("gl_foggreen", "0.3");
 199                 Cvar_Set("gl_fogblue", "0.3");
 200         }
 201         fog_density = fog_red = fog_green = fog_blue = 0.0f;
 202 }
 203
 204 // FIXME: move this to client?
 205 void FOG_registercvars(void)
 206 {
 207         if (gamemode == GAME_NEHAHRA)
 208         {
 209                 Cvar_RegisterVariable (&gl_fogenable);
 210                 Cvar_RegisterVariable (&gl_fogdensity);
 211                 Cvar_RegisterVariable (&gl_fogred);
 212                 Cvar_RegisterVariable (&gl_foggreen);
 213                 Cvar_RegisterVariable (&gl_fogblue);
 214                 Cvar_RegisterVariable (&gl_fogstart);
 215                 Cvar_RegisterVariable (&gl_fogend);
 216         }
 217 }
 218
 219 void gl_main_start(void)
 220 {
 221 }
 222
 223 void gl_main_shutdown(void)
 224 {
 225 }
 226
 227 void gl_main_newmap(void)
 228 {
 229         r_framecount = 1;
 230 }
 231
 232 void GL_Main_Init(void)
 233 {
 234 // FIXME: move this to client?
 235         FOG_registercvars();
 236         Cmd_AddCommand ("timerefresh", R_TimeRefresh_f);
 237         Cvar_RegisterVariable (&r_drawentities);
 238         Cvar_RegisterVariable (&r_drawviewmodel);
 239         Cvar_RegisterVariable (&r_speeds);
 240         Cvar_RegisterVariable (&r_fullbrights);
 241         Cvar_RegisterVariable (&r_wateralpha);
 242         Cvar_RegisterVariable (&r_dynamic);
 243         Cvar_RegisterVariable (&r_waterripple);
 244         Cvar_RegisterVariable (&r_fullbright);
 245         Cvar_RegisterVariable (&r_multitexture);
 246         if (gamemode == GAME_NEHAHRA)
 247                 Cvar_SetValue("r_fullbrights", 0);
 248         R_RegisterModule("GL_Main", gl_main_start, gl_main_shutdown, gl_main_newmap);
 249 }
 250
 251 vec3_t r_farclip_origin;
 252 vec3_t r_farclip_direction;
 253 vec_t r_farclip_directiondist;
 254 vec_t r_farclip_meshfarclip;
 255 int r_farclip_directionbit0;
 256 int r_farclip_directionbit1;
 257 int r_farclip_directionbit2;
 258
 259 // start a farclip measuring session
 260 void R_FarClip_Start(vec3_t origin, vec3_t direction, vec_t startfarclip)
 261 {
 262         VectorCopy(origin, r_farclip_origin);
 263         VectorCopy(direction, r_farclip_direction);
 264         r_farclip_directiondist = DotProduct(r_farclip_origin, r_farclip_direction);
 265         r_farclip_directionbit0 = r_farclip_direction[0] < 0;
 266         r_farclip_directionbit1 = r_farclip_direction[1] < 0;
 267         r_farclip_directionbit2 = r_farclip_direction[2] < 0;
 268         r_farclip_meshfarclip = r_farclip_directiondist + startfarclip;
 269 }
 270
 271 // enlarge farclip to accomodate box
 272 void R_FarClip_Box(vec3_t mins, vec3_t maxs)
 273 {
 274         float d;
 275         d = (r_farclip_directionbit0 ? mins[0] : maxs[0]) * r_farclip_direction[0]
 276           + (r_farclip_directionbit1 ? mins[1] : maxs[1]) * r_farclip_direction[1]
 277           + (r_farclip_directionbit2 ? mins[2] : maxs[2]) * r_farclip_direction[2];
 278         if (r_farclip_meshfarclip < d)
 279                 r_farclip_meshfarclip = d;
 280 }
 281
 282 // return farclip value
 283 float R_FarClip_Finish(void)
 284 {
 285         return r_farclip_meshfarclip - r_farclip_directiondist;
 286 }
 287
 288 /*
 289 ===============
 290 R_NewMap
 291 ===============
 292 */
 293 void CL_ParseEntityLump(char *entitystring);
 294 void R_NewMap (void)
 295 {
 296         int i;
 297
 298         for (i = 0;i < 256;i++)
 299                 d_lightstylevalue[i] = 264;             // normal light value
 300
 301         r_viewleaf = NULL;
 302         if (cl.worldmodel->entities)
 303                 CL_ParseEntityLump(cl.worldmodel->entities);
 304         R_Modules_NewMap();
 305
 306         r_farclip = 64.0f;
 307 }
 308
 309 extern void R_Textures_Init(void);
 310 extern void Mod_RenderInit(void);
 311 extern void GL_Draw_Init(void);
 312 extern void GL_Main_Init(void);
 313 extern void GL_Models_Init(void);
 314 extern void R_Sky_Init(void);
 315 extern void GL_Surf_Init(void);
 316 extern void R_Crosshairs_Init(void);
 317 extern void R_Light_Init(void);
 318 extern void R_Particles_Init(void);
 319 extern void R_Explosion_Init(void);
 320 extern void ui_init(void);
 321 extern void gl_backend_init(void);
 322
 323 void Render_Init(void)
 324 {
 325         R_Modules_Shutdown();
 326         R_Textures_Init();
 327         Mod_RenderInit();
 328         gl_backend_init();
 329         GL_Draw_Init();
 330         GL_Main_Init();
 331         GL_Models_Init();
 332         R_Sky_Init();
 333         GL_Surf_Init();
 334         R_Crosshairs_Init();
 335         R_Light_Init();
 336         R_Particles_Init();
 337         R_Explosion_Init();
 338         ui_init();
 339         R_Modules_Start();
 340 }
 341
 342 /*
 343 ===============
 344 GL_Init
 345 ===============
 346 */
 347 extern char *ENGINE_EXTENSIONS;
 348 void GL_Init (void)
 349 {
 350         VID_CheckExtensions();
 351
 352         // LordHavoc: report supported extensions
 353         Con_Printf ("\nengine extensions: %s\n", ENGINE_EXTENSIONS);
 354
 355         qglCullFace(GL_FRONT);
 356         qglEnable(GL_TEXTURE_2D);
 357 }
 358
 359
 360 //==================================================================================
 361
 362 static void R_MarkEntities (void)
 363 {
 364         int i;
 365         vec3_t v;
 366
 367         R_FarClip_Box(cl.worldmodel->normalmins, cl.worldmodel->normalmaxs);
 368
 369         if (!r_drawentities.integer)
 370                 return;
 371
 372         for (i = 0;i < r_refdef.numentities;i++)
 373         {
 374                 currentrenderentity = r_refdef.entities[i];
 375                 Mod_CheckLoaded(currentrenderentity->model);
 376
 377                 // move view-relative models to where they should be
 378                 if (currentrenderentity->flags & RENDER_VIEWMODEL)
 379                 {
 380                         // remove flag so it will not be repeated incase RelinkEntities is not called again for a while
 381                         currentrenderentity->flags -= RENDER_VIEWMODEL;
 382                         // transform origin
 383                         VectorCopy(currentrenderentity->origin, v);
 384                         currentrenderentity->origin[0] = v[0] * vpn[0] + v[1] * vright[0] + v[2] * vup[0] + r_origin[0];
 385                         currentrenderentity->origin[1] = v[0] * vpn[1] + v[1] * vright[1] + v[2] * vup[1] + r_origin[1];
 386                         currentrenderentity->origin[2] = v[0] * vpn[2] + v[1] * vright[2] + v[2] * vup[2] + r_origin[2];
 387                         // adjust angles
 388                         VectorAdd(currentrenderentity->angles, r_refdef.viewangles, currentrenderentity->angles);
 389                 }
 390
 391                 if (currentrenderentity->angles[0] || currentrenderentity->angles[2])
 392                 {
 393                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->rotatedmins, currentrenderentity->mins);
 394                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->rotatedmaxs, currentrenderentity->maxs);
 395                 }
 396                 else if (currentrenderentity->angles[1])
 397                 {
 398                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->yawmins, currentrenderentity->mins);
 399                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->yawmaxs, currentrenderentity->maxs);
 400                 }
 401                 else
 402                 {
 403                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->normalmins, currentrenderentity->mins);
 404                         VectorMA(currentrenderentity->origin, currentrenderentity->scale, currentrenderentity->model->normalmaxs, currentrenderentity->maxs);
 405                 }
 406                 if (R_VisibleCullBox(currentrenderentity->mins, currentrenderentity->maxs))
 407                         continue;
 408
 409                 R_LerpAnimation(currentrenderentity);
 410                 currentrenderentity->visframe = r_framecount;
 411
 412                 R_FarClip_Box(currentrenderentity->mins, currentrenderentity->maxs);
 413         }
 414 }
 415
 416 // only used if skyrendermasked, and normally returns false
 417 int R_DrawBModelSky (void)
 418 {
 419         int i, sky;
 420
 421         if (!r_drawentities.integer)
 422                 return false;
 423
 424         sky = false;
 425         for (i = 0;i < r_refdef.numentities;i++)
 426         {
 427                 currentrenderentity = r_refdef.entities[i];
 428                 if (currentrenderentity->visframe == r_framecount && currentrenderentity->model->DrawSky)
 429                 {
 430                         currentrenderentity->model->DrawSky();
 431                         sky = true;
 432                 }
 433         }
 434         return sky;
 435 }
 436
 437 void R_DrawModels (void)
 438 {
 439         int i;
 440
 441         if (!r_drawentities.integer)
 442                 return;
 443
 444         for (i = 0;i < r_refdef.numentities;i++)
 445         {
 446                 currentrenderentity = r_refdef.entities[i];
 447                 if (currentrenderentity->visframe == r_framecount && currentrenderentity->model->Draw)
 448                         currentrenderentity->model->Draw();
 449         }
 450 }
 451
 452 /*
 453 =============
 454 R_DrawViewModel
 455 =============
 456 */
 457 void R_DrawViewModel (void)
 458 {
 459         // FIXME: move these checks to client
 460         if (!r_drawviewmodel.integer || chase_active.integer || envmap || !r_drawentities.integer || cl.items & IT_INVISIBILITY || cl.stats[STAT_HEALTH] <= 0 || !cl.viewent.render.model)
 461                 return;
 462
 463         currentrenderentity = &cl.viewent.render;
 464         Mod_CheckLoaded(currentrenderentity->model);
 465
 466         R_LerpAnimation(currentrenderentity);
 467
 468         currentrenderentity->model->Draw();
 469 }
 470
 471 static void R_SetFrustum (void)
 472 {
 473         int i;
 474
 475         // LordHavoc: note to all quake engine coders, the special case for 90
 476         // degrees assumed a square view (wrong), so I removed it, Quake2 has it
 477         // disabled as well.
 478         // rotate VPN right by FOV_X/2 degrees
 479         RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_refdef.fov_x / 2 ) );
 480         // rotate VPN left by FOV_X/2 degrees
 481         RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_refdef.fov_x / 2 );
 482         // rotate VPN up by FOV_X/2 degrees
 483         RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_refdef.fov_y / 2 );
 484         // rotate VPN down by FOV_X/2 degrees
 485         RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_refdef.fov_y / 2 ) );
 486
 487         for (i = 0;i < 4;i++)
 488         {
 489                 frustum[i].type = PLANE_ANYZ;
 490                 frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
 491                 PlaneClassify(&frustum[i]);
 492         }
 493 }
 494
 495 /*
 496 ===============
 497 R_SetupFrame
 498 ===============
 499 */
 500 static void R_SetupFrame (void)
 501 {
 502 // don't allow cheats in multiplayer
 503         if (cl.maxclients > 1)
 504         {
 505                 if (r_fullbright.integer != 0)
 506                         Cvar_Set ("r_fullbright", "0");
 507                 if (r_ambient.value != 0)
 508                         Cvar_Set ("r_ambient", "0");
 509         }
 510         if (r_multitexture.integer && gl_textureunits < 2)
 511                 Cvar_SetValue("r_multitexture", 0);
 512
 513         r_framecount++;
 514
 515 // build the transformation matrix for the given view angles
 516         VectorCopy (r_refdef.vieworg, r_origin);
 517
 518         AngleVectors (r_refdef.viewangles, vpn, vright, vup);
 519
 520 // current viewleaf
 521         r_oldviewleaf = r_viewleaf;
 522         r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
 523
 524         R_AnimateLight ();
 525 }
 526
 527
 528 static void R_BlendView(void)
 529 {
 530         rmeshbufferinfo_t m;
 531         float r;
 532
 533         if (r_refdef.viewblend[3] < 0.01f)
 534                 return;
 535
 536         memset(&m, 0, sizeof(m));
 537         m.transparent = false;
 538         m.blendfunc1 = GL_SRC_ALPHA;
 539         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 540         m.depthdisable = true; // magic
 541         m.numtriangles = 1;
 542         m.numverts = 3;
 543         if (R_Mesh_Draw_GetBuffer(&m))
 544         {
 545                 m.index[0] = 0;
 546                 m.index[1] = 1;
 547                 m.index[2] = 2;
 548                 m.color[0] = m.color[4] = m.color[8] = r_refdef.viewblend[0];
 549                 m.color[1] = m.color[5] = m.color[9] = r_refdef.viewblend[1];
 550                 m.color[2] = m.color[6] = m.color[10] = r_refdef.viewblend[2];
 551                 m.color[3] = m.color[7] = m.color[11] = r_refdef.viewblend[3];
 552                 r = 64000;
 553                 m.vertex[0] = r_origin[0] + vpn[0] * 1.5 - vright[0] * r - vup[0] * r;
 554                 m.vertex[1] = r_origin[1] + vpn[1] * 1.5 - vright[1] * r - vup[1] * r;
 555                 m.vertex[2] = r_origin[2] + vpn[2] * 1.5 - vright[2] * r - vup[2] * r;
 556                 r *= 3;
 557                 m.vertex[4] = m.vertex[0] + vup[0] * r;
 558                 m.vertex[5] = m.vertex[1] + vup[1] * r;
 559                 m.vertex[6] = m.vertex[2] + vup[2] * r;
 560                 m.vertex[8] = m.vertex[0] + vright[0] * r;
 561                 m.vertex[9] = m.vertex[1] + vright[1] * r;
 562                 m.vertex[10] = m.vertex[2] + vright[2] * r;
 563         }
 564 }
 565
 566 /*
 567 ================
 568 R_RenderView
 569
 570 r_refdef must be set before the first call
 571 ================
 572 */
 573 void R_RenderView (void)
 574 {
 575         if (!cl.worldmodel)
 576                 return; //Host_Error ("R_RenderView: NULL worldmodel");
 577
 578         // FIXME: move to client
 579         R_MoveExplosions();
 580         R_TimeReport("mexplosion");
 581
 582         R_SetupFrame();
 583         R_SetFrustum();
 584         R_SetupFog();
 585         R_SkyStartFrame();
 586         R_BuildLightList();
 587
 588         R_FarClip_Start(r_origin, vpn, 768.0f);
 589
 590         R_TimeReport("setup");
 591
 592         R_DrawWorld();
 593         R_TimeReport("worldnode");
 594
 595         R_MarkEntities();
 596         R_TimeReport("markentity");
 597
 598         R_MarkWorldLights();
 599         R_TimeReport("marklights");
 600
 601         r_farclip = R_FarClip_Finish() + 256.0f;
 602
 603         R_Mesh_Start(r_farclip);
 604
 605         if (skyrendermasked)
 606         {
 607                 if (R_DrawBModelSky())
 608                         R_TimeReport("bmodelsky");
 609         }
 610         else
 611         {
 612                 R_DrawViewModel();
 613                 R_TimeReport("viewmodel");
 614         }
 615
 616         R_SetupForWorldRendering();
 617         R_PrepareSurfaces();
 618         R_TimeReport("surfprep");
 619
 620         R_DrawSurfaces(SHADERSTAGE_SKY);
 621         R_DrawSurfaces(SHADERSTAGE_NORMAL);
 622         R_TimeReport("surfdraw");
 623
 624         if (r_drawportals.integer)
 625         {
 626                 R_DrawPortals();
 627                 R_TimeReport("portals");
 628         }
 629
 630         // don't let sound skip if going slow
 631         if (!intimerefresh && !r_speeds.integer)
 632                 S_ExtraUpdate ();
 633
 634         if (skyrendermasked)
 635         {
 636                 R_DrawViewModel();
 637                 R_TimeReport("viewmodel");
 638         }
 639
 640         R_DrawModels();
 641         R_TimeReport("models");
 642
 643         R_DrawParticles();
 644         R_TimeReport("particles");
 645
 646         R_DrawExplosions();
 647         R_TimeReport("explosions");
 648
 649         // draw transparent meshs
 650         R_Mesh_AddTransparent();
 651         R_TimeReport("addtrans");
 652
 653         R_DrawCoronas();
 654         R_TimeReport("coronas");
 655
 656         R_BlendView();
 657         R_TimeReport("blendview");
 658
 659         R_DrawCrosshair();
 660         R_TimeReport("crosshair");
 661
 662         // render any queued meshs
 663         R_Mesh_Finish();
 664         R_TimeReport("meshfinish");
 665 }
 666