gl_rmain.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // r_main.c
  21
  22 #include "quakedef.h"
  23
  24 entity_t        r_worldentity;
  25
  26 qboolean        r_cache_thrash;         // compatability
  27
  28 vec3_t          modelorg, r_entorigin;
  29 entity_t        *currententity;
  30
  31 int                     r_visframecount;        // bumped when going to a new PVS
  32 int                     r_framecount;           // used for dlight push checking
  33
  34 mplane_t        frustum[4];
  35
  36 int                     c_brush_polys, c_alias_polys, c_light_polys, c_faces, c_nodes, c_leafs, c_models, c_bmodels, c_sprites, c_particles, c_dlights;
  37
  38 qboolean        envmap;                         // true during envmap command capture
  39
  40 // LordHavoc: moved all code related to particles into r_part.c
  41 //int                   particletexture;        // little dot for particles
  42 //int                   playertextures;         // up to 16 color translated skins
  43
  44 //
  45 // view origin
  46 //
  47 vec3_t  vup;
  48 vec3_t  vpn;
  49 vec3_t  vright;
  50 vec3_t  r_origin;
  51
  52 float   r_world_matrix[16];
  53 float   r_base_world_matrix[16];
  54
  55 //
  56 // screen size info
  57 //
  58 refdef_t        r_refdef;
  59
  60 mleaf_t         *r_viewleaf, *r_oldviewleaf;
  61
  62 texture_t       *r_notexture_mip;
  63
  64 unsigned short  d_lightstylevalue[256]; // 8.8 fraction of base light value
  65
  66
  67 void R_MarkLeaves (void);
  68
  69 //cvar_t        r_norefresh = {"r_norefresh","0"};
  70 cvar_t  r_drawentities = {"r_drawentities","1"};
  71 cvar_t  r_drawviewmodel = {"r_drawviewmodel","1"};
  72 cvar_t  r_speeds = {"r_speeds","0"};
  73 cvar_t  r_speeds2 = {"r_speeds2","0"};
  74 cvar_t  r_fullbright = {"r_fullbright","0"};
  75 //cvar_t        r_lightmap = {"r_lightmap","0"};
  76 cvar_t  r_wateralpha = {"r_wateralpha","1"};
  77 cvar_t  r_dynamic = {"r_dynamic","1"};
  78 cvar_t  r_novis = {"r_novis","0"};
  79 cvar_t  r_waterripple = {"r_waterripple","0"};
  80 cvar_t  r_fullbrights = {"r_fullbrights", "1"};
  81
  82 cvar_t  contrast = {"contrast", "1.0", true}; // LordHavoc: a method of operating system independent color correction
  83 cvar_t  brightness = {"brightness", "1.0", true}; // LordHavoc: a method of operating system independent color correction
  84 cvar_t  gl_lightmode = {"gl_lightmode", "1", true}; // LordHavoc: overbright lighting
  85 //cvar_t        r_dynamicbothsides = {"r_dynamicbothsides", "1"}; // LordHavoc: can disable dynamic lighting of backfaces, but quake maps are weird so it doesn't always work right...
  86 cvar_t  r_farclip = {"r_farclip", "6144"};
  87
  88 cvar_t  gl_fogenable = {"gl_fogenable", "0"};
  89 cvar_t  gl_fogdensity = {"gl_fogdensity", "0.25"};
  90 cvar_t  gl_fogred = {"gl_fogred","0.3"};
  91 cvar_t  gl_foggreen = {"gl_foggreen","0.3"};
  92 cvar_t  gl_fogblue = {"gl_fogblue","0.3"};
  93 cvar_t  gl_fogstart = {"gl_fogstart", "0"};
  94 cvar_t  gl_fogend = {"gl_fogend","0"};
  95 cvar_t  glfog = {"glfog", "0"};
  96
  97 qboolean lighthalf;
  98
  99 vec3_t fogcolor;
 100 vec_t fogdensity;
 101 float fog_density, fog_red, fog_green, fog_blue;
 102 qboolean fogenabled;
 103 qboolean oldgl_fogenable;
 104 void FOG_framebegin()
 105 {
 106         if (nehahra)
 107         {
 108 //              if (!Nehahrademcompatibility)
 109 //                      gl_fogenable.value = 0;
 110                 if (gl_fogenable.value)
 111                 {
 112                         oldgl_fogenable = true;
 113                         fog_density = gl_fogdensity.value;
 114                         fog_red = gl_fogred.value;
 115                         fog_green = gl_foggreen.value;
 116                         fog_blue = gl_fogblue.value;
 117                 }
 118                 else if (oldgl_fogenable)
 119                 {
 120                         oldgl_fogenable = false;
 121                         fog_density = 0;
 122                         fog_red = 0;
 123                         fog_green = 0;
 124                         fog_blue = 0;
 125                 }
 126         }
 127         if (fog_density)
 128         {
 129                         fogcolor[0] = fog_red   = bound(0.0f, fog_red  , 1.0f);
 130                         fogcolor[1] = fog_green = bound(0.0f, fog_green, 1.0f);
 131                         fogcolor[2] = fog_blue  = bound(0.0f, fog_blue , 1.0f);
 132                         if (lighthalf)
 133                         {
 134                                 fogcolor[0] *= 0.5f;
 135                                 fogcolor[1] *= 0.5f;
 136                                 fogcolor[2] *= 0.5f;
 137                         }
 138         }
 139         if (glfog.value)
 140         {
 141                 if (!r_render.value)
 142                         return;
 143                 if(fog_density)
 144                 {
 145                         // LordHavoc: Borland C++ 5.0 was choking on this line, stupid compiler...
 146                         //GLfloat colors[4] = {(GLfloat) gl_fogred.value, (GLfloat) gl_foggreen.value, (GLfloat) gl_fogblue.value, (GLfloat) 1};
 147                         GLfloat colors[4];
 148                         colors[0] = fog_red;
 149                         colors[1] = fog_green;
 150                         colors[2] = fog_blue;
 151                         colors[3] = 1;
 152                         if (lighthalf)
 153                         {
 154                                 colors[0] *= 0.5f;
 155                                 colors[1] *= 0.5f;
 156                                 colors[2] *= 0.5f;
 157                         }
 158
 159                         glFogi (GL_FOG_MODE, GL_EXP2);
 160                         glFogf (GL_FOG_DENSITY, (GLfloat) fog_density / 100);
 161                         glFogfv (GL_FOG_COLOR, colors);
 162                         glEnable (GL_FOG);
 163                 }
 164                 else
 165                         glDisable(GL_FOG);
 166         }
 167         else
 168         {
 169                 if (fog_density)
 170                 {
 171                         fogenabled = true;
 172                         fogdensity = -4000.0f / (fog_density * fog_density);
 173                         // fog color was already set
 174                 }
 175                 else
 176                         fogenabled = false;
 177         }
 178 }
 179
 180 void FOG_frameend()
 181 {
 182         if (glfog.value)
 183                 glDisable(GL_FOG);
 184 }
 185
 186 void FOG_clear()
 187 {
 188         if (nehahra)
 189         {
 190                 Cvar_Set("gl_fogenable", "0");
 191                 Cvar_Set("gl_fogdensity", "0.2");
 192                 Cvar_Set("gl_fogred", "0.3");
 193                 Cvar_Set("gl_foggreen", "0.3");
 194                 Cvar_Set("gl_fogblue", "0.3");
 195         }
 196         fog_density = fog_red = fog_green = fog_blue = 0.0f;
 197 }
 198
 199 void FOG_registercvars()
 200 {
 201         Cvar_RegisterVariable (&glfog);
 202         if (nehahra)
 203         {
 204                 Cvar_RegisterVariable (&gl_fogenable);
 205                 Cvar_RegisterVariable (&gl_fogdensity);
 206                 Cvar_RegisterVariable (&gl_fogred);
 207                 Cvar_RegisterVariable (&gl_foggreen);
 208                 Cvar_RegisterVariable (&gl_fogblue);
 209                 Cvar_RegisterVariable (&gl_fogstart);
 210                 Cvar_RegisterVariable (&gl_fogend);
 211         }
 212 }
 213
 214 void glmain_start()
 215 {
 216 }
 217
 218 void glmain_shutdown()
 219 {
 220 }
 221
 222 void GL_Main_Init()
 223 {
 224         FOG_registercvars();
 225         Cvar_RegisterVariable (&r_drawentities);
 226         Cvar_RegisterVariable (&r_drawviewmodel);
 227         Cvar_RegisterVariable (&r_speeds);
 228         Cvar_RegisterVariable (&r_speeds2);
 229         Cvar_RegisterVariable (&contrast);
 230         Cvar_RegisterVariable (&brightness);
 231         Cvar_RegisterVariable (&gl_lightmode);
 232 //      Cvar_RegisterVariable (&r_dynamicwater);
 233 //      Cvar_RegisterVariable (&r_dynamicbothsides);
 234         Cvar_RegisterVariable (&r_fullbrights);
 235         Cvar_RegisterVariable (&r_wateralpha);
 236         Cvar_RegisterVariable (&r_dynamic);
 237         Cvar_RegisterVariable (&r_novis);
 238         Cvar_RegisterVariable (&r_waterripple); // LordHavoc: added waterripple
 239         if (nehahra)
 240                 Cvar_SetValue("r_fullbrights", 0);
 241 //      if (gl_vendor && strstr(gl_vendor, "3Dfx"))
 242 //              gl_lightmode.value = 0;
 243         Cvar_RegisterVariable (&r_fullbright);
 244         R_RegisterModule("GL_Main", glmain_start, glmain_shutdown);
 245 }
 246
 247 extern void GL_Draw_Init();
 248 extern void GL_Main_Init();
 249 extern void GL_Models_Init();
 250 extern void GL_Poly_Init();
 251 extern void GL_Surf_Init();
 252 extern void GL_Screen_Init();
 253 extern void GL_Misc_Init();
 254 extern void R_Crosshairs_Init();
 255 extern void R_Light_Init();
 256 extern void R_Particles_Init();
 257 extern void R_Explosion_Init();
 258 extern void CL_Effects_Init();
 259
 260 void Render_Init()
 261 {
 262         R_ShutdownModules();
 263         GL_Draw_Init();
 264         GL_Main_Init();
 265         GL_Models_Init();
 266         GL_Poly_Init();
 267         GL_Surf_Init();
 268         GL_Screen_Init();
 269         GL_Misc_Init();
 270         R_Crosshairs_Init();
 271         R_Light_Init();
 272         R_Particles_Init();
 273         R_Explosion_Init();
 274         CL_Effects_Init();
 275         R_StartModules();
 276 }
 277
 278 /*
 279 ===============
 280 GL_Init
 281 ===============
 282 */
 283 extern char *ENGINE_EXTENSIONS;
 284 void GL_Init (void)
 285 {
 286         gl_vendor = glGetString (GL_VENDOR);
 287         Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
 288         gl_renderer = glGetString (GL_RENDERER);
 289         Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
 290
 291         gl_version = glGetString (GL_VERSION);
 292         Con_Printf ("GL_VERSION: %s\n", gl_version);
 293         gl_extensions = glGetString (GL_EXTENSIONS);
 294         Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
 295
 296 //      Con_Printf ("%s %s\n", gl_renderer, gl_version);
 297
 298         VID_CheckMultitexture();
 299         VID_CheckCVA();
 300
 301         // LordHavoc: report supported extensions
 302         Con_Printf ("\nengine extensions: %s\n", ENGINE_EXTENSIONS);
 303
 304         glCullFace(GL_FRONT);
 305         glEnable(GL_TEXTURE_2D);
 306 //      glDisable(GL_ALPHA_TEST);
 307         glAlphaFunc(GL_GREATER, 0.5);
 308
 309 //      glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
 310
 311         Palette_Init();
 312 }
 313
 314
 315 /*
 316 void R_RotateForEntity (entity_t *e)
 317 {
 318         glTranslatef (e->origin[0],  e->origin[1],  e->origin[2]);
 319
 320         glRotatef (e->angles[1],  0, 0, 1);
 321         glRotatef (-e->angles[0],  0, 1, 0);
 322         glRotatef (e->angles[2],  1, 0, 0);
 323
 324         glScalef (e->scale, e->scale, e->scale); // LordHavoc: model scale
 325 }
 326 */
 327
 328 // LordHavoc: shading stuff
 329 vec3_t  shadevector;
 330 vec3_t  shadecolor;
 331
 332 float   modelalpha;
 333
 334 //==================================================================================
 335
 336 void R_DrawBrushModel (entity_t *e);
 337 void R_DrawSpriteModel (entity_t *e, frameblend_t *blend);
 338
 339 void R_LerpUpdate(entity_t *ent)
 340 {
 341         int frame;
 342         frame = ent->frame;
 343         if (ent->model && ent->frame >= ent->model->numframes)
 344         {
 345                 Con_Printf("R_LerpUpdate: no such frame%6i in \"%s\"\n", ent->frame, ent->model->name);
 346                 frame = 0;
 347         }
 348
 349         if (ent->lerp_model != ent->model)
 350         {
 351                 // reset all interpolation information
 352                 ent->lerp_model = ent->model;
 353                 ent->frame1 = ent->frame2 = frame;
 354                 ent->frame1start = ent->frame2start = cl.time;
 355                 ent->framelerp = 1;
 356                 ent->lerp_starttime = 0;
 357         }
 358         else if (ent->frame2 != frame)
 359         {
 360                 // transition to new frame
 361                 ent->frame1 = ent->frame2;
 362                 ent->frame1start = ent->frame2start;
 363                 ent->frame2 = frame;
 364                 ent->frame2start = cl.time;
 365                 ent->framelerp = 0;
 366                 ent->lerp_starttime = cl.time;
 367         }
 368         else
 369         {
 370                 // lerp_starttime < 0 is used to prevent changing of framelerp
 371                 if (ent->lerp_starttime >= 0)
 372                 {
 373                         // update transition
 374                         ent->framelerp = (cl.time - ent->lerp_starttime) * 10;
 375                         ent->framelerp = bound(0, ent->framelerp, 1);
 376                 }
 377         }
 378 }
 379
 380
 381 /*
 382 =============
 383 R_DrawEntitiesOnList
 384 =============
 385 */
 386 // LordHavoc: split so bmodels are rendered before any other objects
 387 void R_DrawEntitiesOnList1 (void)
 388 {
 389         int             i;
 390
 391         if (!r_drawentities.value)
 392                 return;
 393
 394         for (i=0 ; i<cl_numvisedicts ; i++)
 395         {
 396                 if (cl_visedicts[i]->model->type != mod_brush)
 397                         continue;
 398                 currententity = cl_visedicts[i];
 399                 modelalpha = currententity->alpha;
 400
 401                 R_DrawBrushModel (currententity);
 402         }
 403 }
 404
 405 void R_DrawEntitiesOnList2 (void)
 406 {
 407         int             i;
 408         frameblend_t blend[4];
 409
 410         if (!r_drawentities.value)
 411                 return;
 412
 413         for (i=0 ; i<cl_numvisedicts ; i++)
 414         {
 415                 currententity = cl_visedicts[i];
 416                 modelalpha = currententity->alpha;
 417
 418                 switch (currententity->model->type)
 419                 {
 420                 case mod_alias:
 421                         if (!strcmp(currententity->model->name, "progs/flame2.mdl"))
 422                                 blend[0].frame = 0;
 423
 424                         R_LerpUpdate(currententity);
 425                         R_LerpAnimation(currententity->model, currententity->frame1, currententity->frame2, currententity->frame1start, currententity->frame2start, currententity->framelerp, blend);
 426                         R_DrawAliasModel (currententity, true, modelalpha, currententity->model, blend, currententity->skinnum, currententity->origin, currententity->angles, currententity->scale, currententity->effects, currententity->model->flags, currententity->colormap);
 427                         break;
 428
 429                 case mod_sprite:
 430                         R_LerpUpdate(currententity);
 431                         R_LerpAnimation(currententity->model, currententity->frame1, currententity->frame2, currententity->frame1start, currententity->frame2start, currententity->framelerp, blend);
 432                         R_DrawSpriteModel (currententity, blend);
 433                         break;
 434
 435                 default:
 436                         break;
 437                 }
 438         }
 439 }
 440
 441 /*
 442 =============
 443 R_DrawViewModel
 444 =============
 445 */
 446 void R_DrawViewModel (void)
 447 {
 448         frameblend_t blend[4];
 449
 450         if (!r_drawviewmodel.value || chase_active.value || envmap || !r_drawentities.value || cl.items & IT_INVISIBILITY || cl.stats[STAT_HEALTH] <= 0 || !cl.viewent.model)
 451                 return;
 452
 453         currententity = &cl.viewent;
 454         currententity->alpha = modelalpha = cl_entities[cl.viewentity].alpha; // LordHavoc: if the player is transparent, so is his gun
 455         currententity->effects = cl_entities[cl.viewentity].effects;
 456         currententity->scale = 1;
 457         VectorCopy(cl_entities[cl.viewentity].colormod, currententity->colormod);
 458
 459         R_LerpUpdate(currententity);
 460         R_LerpAnimation(currententity->model, currententity->frame1, currententity->frame2, currententity->frame1start, currententity->frame2start, currententity->framelerp, blend);
 461
 462         // hack the depth range to prevent view model from poking into walls
 463         glDepthRange (gldepthmin, gldepthmin + 0.3*(gldepthmax-gldepthmin));
 464         R_DrawAliasModel (currententity, false, modelalpha, currententity->model, blend, currententity->skinnum, currententity->origin, currententity->angles, currententity->scale, currententity->effects, currententity->model->flags, currententity->colormap);
 465         glDepthRange (gldepthmin, gldepthmax);
 466 }
 467
 468 void R_DrawBrushModel (entity_t *e);
 469
 470 void RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point, float degrees );
 471
 472 void R_SetFrustum (void)
 473 {
 474         int             i;
 475
 476         if (r_refdef.fov_x == 90)
 477         {
 478                 // front side is visible
 479
 480                 VectorAdd (vpn, vright, frustum[0].normal);
 481                 VectorSubtract (vpn, vright, frustum[1].normal);
 482
 483                 VectorAdd (vpn, vup, frustum[2].normal);
 484                 VectorSubtract (vpn, vup, frustum[3].normal);
 485         }
 486         else
 487         {
 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 //              frustum[i].signbits = SignbitsForPlane (&frustum[i]);
 503                 BoxOnPlaneSideClassify(&frustum[i]);
 504         }
 505 }
 506
 507 void R_AnimateLight (void);
 508 void V_CalcBlend (void);
 509
 510 /*
 511 ===============
 512 R_SetupFrame
 513 ===============
 514 */
 515 void R_SetupFrame (void)
 516 {
 517 // don't allow cheats in multiplayer
 518         if (cl.maxclients > 1)
 519         {
 520                 Cvar_Set ("r_fullbright", "0");
 521                 Cvar_Set ("r_ambient", "0");
 522         }
 523
 524         R_AnimateLight ();
 525
 526         r_framecount++;
 527
 528 // build the transformation matrix for the given view angles
 529         VectorCopy (r_refdef.vieworg, r_origin);
 530
 531         AngleVectors (r_refdef.viewangles, vpn, vright, vup);
 532
 533 // current viewleaf
 534         r_oldviewleaf = r_viewleaf;
 535         r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
 536
 537         V_SetContentsColor (r_viewleaf->contents);
 538         V_CalcBlend ();
 539
 540         r_cache_thrash = false;
 541
 542         c_brush_polys = 0;
 543         c_alias_polys = 0;
 544         c_light_polys = 0;
 545         c_faces = 0;
 546         c_nodes = 0;
 547         c_leafs = 0;
 548         c_models = 0;
 549         c_bmodels = 0;
 550         c_sprites = 0;
 551         c_particles = 0;
 552 //      c_dlights = 0;
 553 }
 554
 555
 556 void MYgluPerspective( GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar )
 557 {
 558    GLdouble xmin, xmax, ymin, ymax;
 559
 560    ymax = zNear * tan( fovy * M_PI / 360.0 );
 561    ymin = -ymax;
 562
 563    xmin = ymin * aspect;
 564    xmax = ymax * aspect;
 565
 566    glFrustum( xmin, xmax, ymin, ymax, zNear, zFar );
 567 }
 568
 569
 570 extern char skyname[];
 571
 572 /*
 573 =============
 574 R_SetupGL
 575 =============
 576 */
 577 void R_SetupGL (void)
 578 {
 579         float   screenaspect;
 580         extern  int glwidth, glheight;
 581         int             x, x2, y2, y, w, h;
 582
 583         if (!r_render.value)
 584                 return;
 585         //
 586         // set up viewpoint
 587         //
 588         glMatrixMode(GL_PROJECTION);
 589     glLoadIdentity ();
 590         x = r_refdef.vrect.x * glwidth/vid.width;
 591         x2 = (r_refdef.vrect.x + r_refdef.vrect.width) * glwidth/vid.width;
 592         y = (vid.height-r_refdef.vrect.y) * glheight/vid.height;
 593         y2 = (vid.height - (r_refdef.vrect.y + r_refdef.vrect.height)) * glheight/vid.height;
 594
 595         // fudge around because of frac screen scale
 596         if (x > 0)
 597                 x--;
 598         if (x2 < glwidth)
 599                 x2++;
 600         if (y2 < 0)
 601                 y2--;
 602         if (y < glheight)
 603                 y++;
 604
 605         w = x2 - x;
 606         h = y - y2;
 607
 608         if (envmap)
 609         {
 610                 x = y2 = 0;
 611                 w = h = 256;
 612         }
 613
 614         glViewport (glx + x, gly + y2, w, h);
 615     screenaspect = (float)r_refdef.vrect.width/r_refdef.vrect.height;
 616 //      yfov = 2*atan((float)r_refdef.vrect.height/r_refdef.vrect.width)*180/M_PI;
 617 //      if (skyname[0]) // skybox enabled?
 618 //              MYgluPerspective (r_refdef.fov_y,  screenaspect,  4,  r_skyboxsize.value*1.732050807569 + 256); // this is size*sqrt(3) + 256
 619 //      else
 620                 MYgluPerspective (r_refdef.fov_y,  screenaspect,  4,  r_farclip.value);
 621
 622         glCullFace(GL_FRONT);
 623
 624         glMatrixMode(GL_MODELVIEW);
 625     glLoadIdentity ();
 626
 627     glRotatef (-90,  1, 0, 0);      // put Z going up
 628     glRotatef (90,  0, 0, 1);       // put Z going up
 629     glRotatef (-r_refdef.viewangles[2],  1, 0, 0);
 630     glRotatef (-r_refdef.viewangles[0],  0, 1, 0);
 631     glRotatef (-r_refdef.viewangles[1],  0, 0, 1);
 632     glTranslatef (-r_refdef.vieworg[0],  -r_refdef.vieworg[1],  -r_refdef.vieworg[2]);
 633
 634         glGetFloatv (GL_MODELVIEW_MATRIX, r_world_matrix);
 635
 636         //
 637         // set drawing parms
 638         //
 639 //      if (gl_cull.value)
 640                 glEnable(GL_CULL_FACE);
 641 //      else
 642 //              glDisable(GL_CULL_FACE);
 643
 644         glEnable(GL_BLEND); // was Disable
 645         glDisable(GL_ALPHA_TEST);
 646         glAlphaFunc(GL_GREATER, 0.5);
 647         glEnable(GL_DEPTH_TEST);
 648         glDepthMask(1);
 649         glShadeModel(GL_SMOOTH);
 650 }
 651
 652 /*
 653 =============
 654 R_Clear
 655 =============
 656 */
 657 void R_Clear (void)
 658 {
 659         if (!r_render.value)
 660                 return;
 661 //      glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // LordHavoc: moved to SCR_UpdateScreen
 662         gldepthmin = 0;
 663         gldepthmax = 1;
 664         glDepthFunc (GL_LEQUAL);
 665
 666         glDepthRange (gldepthmin, gldepthmax);
 667 }
 668
 669 // LordHavoc: my trick to *FIX* GLQuake lighting once and for all :)
 670 void GL_Brighten()
 671 {
 672         if (!r_render.value)
 673                 return;
 674         glMatrixMode(GL_PROJECTION);
 675     glLoadIdentity ();
 676         glOrtho  (0, vid.width, vid.height, 0, -99999, 99999);
 677         glMatrixMode(GL_MODELVIEW);
 678     glLoadIdentity ();
 679         glDisable (GL_DEPTH_TEST);
 680         glDisable (GL_CULL_FACE);
 681         glDisable(GL_TEXTURE_2D);
 682         glEnable(GL_BLEND);
 683         glBlendFunc (GL_DST_COLOR, GL_ONE);
 684         glBegin (GL_TRIANGLES);
 685         glColor3f (1, 1, 1);
 686         glVertex2f (-5000, -5000);
 687         glVertex2f (10000, -5000);
 688         glVertex2f (-5000, 10000);
 689         glEnd ();
 690         glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 691         glDisable(GL_BLEND);
 692         glEnable(GL_TEXTURE_2D);
 693         glEnable (GL_DEPTH_TEST);
 694         glEnable (GL_CULL_FACE);
 695 }
 696
 697 extern cvar_t contrast;
 698 extern cvar_t brightness;
 699 extern cvar_t gl_lightmode;
 700
 701 void GL_BlendView()
 702 {
 703         if (!r_render.value)
 704                 return;
 705         glMatrixMode(GL_PROJECTION);
 706     glLoadIdentity ();
 707         glOrtho  (0, vid.width, vid.height, 0, -99999, 99999);
 708         glMatrixMode(GL_MODELVIEW);
 709     glLoadIdentity ();
 710         glDisable (GL_DEPTH_TEST);
 711         glDisable (GL_CULL_FACE);
 712         glDisable(GL_TEXTURE_2D);
 713         glEnable(GL_BLEND);
 714         if (lighthalf)
 715         {
 716                 glBlendFunc (GL_DST_COLOR, GL_ONE);
 717                 glBegin (GL_TRIANGLES);
 718                 glColor3f (1, 1, 1);
 719                 glVertex2f (-5000, -5000);
 720                 glVertex2f (10000, -5000);
 721                 glVertex2f (-5000, 10000);
 722                 glEnd ();
 723         }
 724         glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 725         contrast.value = bound(0.2, contrast.value, 1.0);
 726         if (/*gl_polyblend.value && */v_blend[3])
 727         {
 728                 glBegin (GL_TRIANGLES);
 729                 glColor4fv (v_blend);
 730                 glVertex2f (-5000, -5000);
 731                 glVertex2f (10000, -5000);
 732                 glVertex2f (-5000, 10000);
 733                 glEnd ();
 734         }
 735
 736         glEnable (GL_CULL_FACE);
 737         glEnable (GL_DEPTH_TEST);
 738         glDisable(GL_BLEND);
 739         glEnable(GL_TEXTURE_2D);
 740 }
 741
 742 /*
 743 #define TIMEREPORT(DESC) \
 744         if (r_speeds2.value)\
 745         {\
 746                 temptime = -currtime;\
 747                 currtime = Sys_FloatTime();\
 748                 temptime += currtime;\
 749                 Con_Printf(DESC " %.4fms ", temptime * 1000.0);\
 750         }
 751 */
 752 #define TIMEREPORT(VAR) \
 753         if (r_speeds2.value)\
 754         {\
 755                 temptime = currtime;\
 756                 currtime = Sys_FloatTime();\
 757                 VAR = (int) ((currtime - temptime) * 1000000.0);\
 758         }\
 759         else\
 760                 VAR = 0;
 761
 762 /*
 763 ================
 764 R_RenderView
 765
 766 r_refdef must be set before the first call
 767 ================
 768 */
 769 extern qboolean intimerefresh;
 770 extern qboolean skyisvisible;
 771 extern void R_Sky();
 772 extern void UploadLightmaps();
 773 char r_speeds2_string1[81], r_speeds2_string2[81], r_speeds2_string3[81], r_speeds2_string4[81], r_speeds2_string5[81], r_speeds2_string6[81];
 774 void R_RenderView (void)
 775 {
 776         double starttime, currtime, temptime;
 777         int time_clear, time_setup, time_world, time_bmodels, time_upload, time_sky, time_wall, time_models, time_moveparticles, time_drawparticles, time_moveexplosions, time_drawexplosions, time_transpoly, time_blend, time_total;
 778 //      double currtime, temptime;
 779 //      if (r_norefresh.value)
 780 //              return;
 781
 782         if (!r_worldentity.model || !cl.worldmodel)
 783                 Sys_Error ("R_RenderView: NULL worldmodel");
 784
 785         lighthalf = gl_lightmode.value;
 786
 787         FOG_framebegin();
 788
 789         if (r_speeds2.value)
 790         {
 791                 starttime = currtime = Sys_FloatTime();
 792 //              Con_Printf("render time: ");
 793         }
 794         else
 795                 starttime = currtime = 0;
 796         R_Clear();
 797         skyisvisible = false;
 798         TIMEREPORT(time_clear)
 799
 800         // render normal view
 801
 802         R_SetupFrame ();
 803         R_SetFrustum ();
 804         R_SetupGL ();
 805
 806         skypolyclear();
 807         wallpolyclear();
 808         transpolyclear();
 809
 810         TIMEREPORT(time_setup)
 811
 812         R_MarkLeaves ();        // done here so we know if we're in water
 813         R_DrawWorld ();         // adds static entities to the list
 814         TIMEREPORT(time_world)
 815         R_DrawEntitiesOnList1 (); // BSP models
 816         TIMEREPORT(time_bmodels)
 817
 818         UploadLightmaps();
 819         TIMEREPORT(time_upload)
 820
 821         skypolyrender(); // fogged sky polys, affects depth
 822
 823         if (skyname[0] && skyisvisible && !fogenabled)
 824                 R_Sky(); // does not affect depth, draws over the sky polys
 825         TIMEREPORT(time_sky)
 826
 827         wallpolyrender();
 828         TIMEREPORT(time_wall)
 829
 830         if (!intimerefresh && !r_speeds2.value)
 831                 S_ExtraUpdate ();       // don't let sound get messed up if going slow
 832
 833         R_DrawEntitiesOnList2 (); // other models
 834 //      R_RenderDlights ();
 835         R_DrawViewModel ();
 836         TIMEREPORT(time_models)
 837         R_MoveParticles ();
 838         TIMEREPORT(time_moveparticles)
 839         R_DrawParticles ();
 840         TIMEREPORT(time_drawparticles)
 841         R_MoveExplosions();
 842         TIMEREPORT(time_moveexplosions)
 843         R_DrawExplosions();
 844         TIMEREPORT(time_drawexplosions)
 845
 846         transpolyrender();
 847         TIMEREPORT(time_transpoly)
 848
 849         FOG_frameend();
 850
 851         GL_BlendView();
 852         TIMEREPORT(time_blend)
 853         if (r_speeds2.value)
 854         {
 855                 time_total = (int) ((Sys_FloatTime() - starttime) * 1000000.0);
 856 //              Con_Printf("\n");
 857                 sprintf(r_speeds2_string1, "%6i walls %6i dlitwalls %7i modeltris %7i transpoly\n", c_brush_polys, c_light_polys, c_alias_polys, currenttranspoly);
 858                 sprintf(r_speeds2_string2, "BSP: %6i faces %6i nodes %6i leafs\n", c_faces, c_nodes, c_leafs);
 859                 sprintf(r_speeds2_string3, "%4i models %4i bmodels %4i sprites %5i particles %3i dlights\n", c_models, c_bmodels, c_sprites, c_particles, c_dlights);
 860                 sprintf(r_speeds2_string4, "%6ius clear  %6ius setup  %6ius world  %6ius bmodel %6ius upload", time_clear, time_setup, time_world, time_bmodels, time_upload);
 861                 sprintf(r_speeds2_string5, "%6ius sky    %6ius wall   %6ius models %6ius mpart  %6ius dpart ", time_sky, time_wall, time_models, time_moveparticles, time_drawparticles);
 862                 sprintf(r_speeds2_string6, "%6ius trans  %6ius blend  %6ius total  %6ius permdl", time_transpoly, time_blend, time_total, time_models / max(c_models, 1));
 863         }
 864 }