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 gl_main_start()
 215 {
 216 }
 217
 218 void gl_main_shutdown()
 219 {
 220 }
 221
 222 void gl_main_newmap()
 223 {
 224 }
 225
 226 void GL_Main_Init()
 227 {
 228         FOG_registercvars();
 229         Cvar_RegisterVariable (&r_drawentities);
 230         Cvar_RegisterVariable (&r_drawviewmodel);
 231         Cvar_RegisterVariable (&r_speeds);
 232         Cvar_RegisterVariable (&r_speeds2);
 233         Cvar_RegisterVariable (&contrast);
 234         Cvar_RegisterVariable (&brightness);
 235         Cvar_RegisterVariable (&gl_lightmode);
 236 //      Cvar_RegisterVariable (&r_dynamicwater);
 237 //      Cvar_RegisterVariable (&r_dynamicbothsides);
 238         Cvar_RegisterVariable (&r_fullbrights);
 239         Cvar_RegisterVariable (&r_wateralpha);
 240         Cvar_RegisterVariable (&r_dynamic);
 241         Cvar_RegisterVariable (&r_novis);
 242         Cvar_RegisterVariable (&r_waterripple); // LordHavoc: added waterripple
 243         if (nehahra)
 244                 Cvar_SetValue("r_fullbrights", 0);
 245 //      if (gl_vendor && strstr(gl_vendor, "3Dfx"))
 246 //              gl_lightmode.value = 0;
 247         Cvar_RegisterVariable (&r_fullbright);
 248         R_RegisterModule("GL_Main", gl_main_start, gl_main_shutdown, gl_main_newmap);
 249 }
 250
 251 extern void GL_Draw_Init();
 252 extern void GL_Main_Init();
 253 extern void GL_Models_Init();
 254 extern void GL_Poly_Init();
 255 extern void GL_Surf_Init();
 256 extern void GL_Screen_Init();
 257 extern void GL_Misc_Init();
 258 extern void R_Crosshairs_Init();
 259 extern void R_Light_Init();
 260 extern void R_Particles_Init();
 261 extern void R_Explosion_Init();
 262 extern void CL_Effects_Init();
 263
 264 void Render_Init()
 265 {
 266         R_Modules_Shutdown();
 267         GL_Draw_Init();
 268         GL_Main_Init();
 269         GL_Models_Init();
 270         GL_Poly_Init();
 271         GL_Surf_Init();
 272         GL_Screen_Init();
 273         GL_Misc_Init();
 274         R_Crosshairs_Init();
 275         R_Light_Init();
 276         R_Particles_Init();
 277         R_Explosion_Init();
 278         CL_Effects_Init();
 279         R_Decals_Init();
 280         R_Modules_Start();
 281 }
 282
 283 /*
 284 ===============
 285 GL_Init
 286 ===============
 287 */
 288 extern char *ENGINE_EXTENSIONS;
 289 void GL_Init (void)
 290 {
 291         gl_vendor = glGetString (GL_VENDOR);
 292         Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
 293         gl_renderer = glGetString (GL_RENDERER);
 294         Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
 295
 296         gl_version = glGetString (GL_VERSION);
 297         Con_Printf ("GL_VERSION: %s\n", gl_version);
 298         gl_extensions = glGetString (GL_EXTENSIONS);
 299         Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
 300
 301 //      Con_Printf ("%s %s\n", gl_renderer, gl_version);
 302
 303         VID_CheckMultitexture();
 304         VID_CheckCVA();
 305
 306         // LordHavoc: report supported extensions
 307         Con_Printf ("\nengine extensions: %s\n", ENGINE_EXTENSIONS);
 308
 309         glCullFace(GL_FRONT);
 310         glEnable(GL_TEXTURE_2D);
 311 //      glDisable(GL_ALPHA_TEST);
 312         glAlphaFunc(GL_GREATER, 0.5);
 313
 314 //      glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
 315
 316         Palette_Init();
 317 }
 318
 319
 320 /*
 321 void R_RotateForEntity (entity_t *e)
 322 {
 323         glTranslatef (e->origin[0],  e->origin[1],  e->origin[2]);
 324
 325         glRotatef (e->angles[1],  0, 0, 1);
 326         glRotatef (-e->angles[0],  0, 1, 0);
 327         glRotatef (e->angles[2],  1, 0, 0);
 328
 329         glScalef (e->scale, e->scale, e->scale); // LordHavoc: model scale
 330 }
 331 */
 332
 333 // LordHavoc: shading stuff
 334 vec3_t  shadevector;
 335 vec3_t  shadecolor;
 336
 337 float   modelalpha;
 338
 339 //==================================================================================
 340
 341 void R_DrawBrushModel (entity_t *e);
 342 void R_DrawSpriteModel (entity_t *e, frameblend_t *blend);
 343
 344 void R_LerpUpdate(entity_t *ent)
 345 {
 346         int frame;
 347         frame = ent->frame;
 348         if (ent->model && ent->frame >= ent->model->numframes)
 349         {
 350                 Con_Printf("R_LerpUpdate: no such frame%6i in \"%s\"\n", ent->frame, ent->model->name);
 351                 frame = 0;
 352         }
 353
 354         if (ent->lerp_model != ent->model)
 355         {
 356                 // reset all interpolation information
 357                 ent->lerp_model = ent->model;
 358                 ent->frame1 = ent->frame2 = frame;
 359                 ent->frame1start = ent->frame2start = cl.time;
 360                 ent->framelerp = 1;
 361                 ent->lerp_starttime = 0;
 362         }
 363         else if (ent->frame2 != frame)
 364         {
 365                 // transition to new frame
 366                 ent->frame1 = ent->frame2;
 367                 ent->frame1start = ent->frame2start;
 368                 ent->frame2 = frame;
 369                 ent->frame2start = cl.time;
 370                 ent->framelerp = 0;
 371                 ent->lerp_starttime = cl.time;
 372         }
 373         else
 374         {
 375                 // lerp_starttime < 0 is used to prevent changing of framelerp
 376                 if (ent->lerp_starttime >= 0)
 377                 {
 378                         // update transition
 379                         ent->framelerp = (cl.time - ent->lerp_starttime) * 10;
 380                         ent->framelerp = bound(0, ent->framelerp, 1);
 381                 }
 382         }
 383 }
 384
 385
 386 /*
 387 =============
 388 R_DrawEntitiesOnList
 389 =============
 390 */
 391 // LordHavoc: split so bmodels are rendered before any other objects
 392 void R_DrawEntitiesOnList1 (void)
 393 {
 394         int             i;
 395
 396         if (!r_drawentities.value)
 397                 return;
 398
 399         for (i=0 ; i<cl_numvisedicts ; i++)
 400         {
 401                 if (cl_visedicts[i]->model->type != mod_brush)
 402                         continue;
 403                 currententity = cl_visedicts[i];
 404                 modelalpha = currententity->alpha;
 405
 406                 R_DrawBrushModel (currententity);
 407         }
 408 }
 409
 410 void R_DrawEntitiesOnList2 (void)
 411 {
 412         int             i;
 413         frameblend_t blend[4];
 414
 415         if (!r_drawentities.value)
 416                 return;
 417
 418         for (i=0 ; i<cl_numvisedicts ; i++)
 419         {
 420                 currententity = cl_visedicts[i];
 421                 modelalpha = currententity->alpha;
 422
 423                 switch (currententity->model->type)
 424                 {
 425                 case mod_alias:
 426                         if (!strcmp(currententity->model->name, "progs/flame2.mdl"))
 427                                 blend[0].frame = 0;
 428
 429                         R_LerpUpdate(currententity);
 430                         R_LerpAnimation(currententity->model, currententity->frame1, currententity->frame2, currententity->frame1start, currententity->frame2start, currententity->framelerp, blend);
 431                         R_DrawAliasModel (currententity, true, modelalpha, currententity->model, blend, currententity->skinnum, currententity->origin, currententity->angles, currententity->scale, currententity->effects, currententity->model->flags, currententity->colormap);
 432                         break;
 433
 434                 case mod_sprite:
 435                         R_LerpUpdate(currententity);
 436                         R_LerpAnimation(currententity->model, currententity->frame1, currententity->frame2, currententity->frame1start, currententity->frame2start, currententity->framelerp, blend);
 437                         R_DrawSpriteModel (currententity, blend);
 438                         break;
 439
 440                 default:
 441                         break;
 442                 }
 443         }
 444 }
 445
 446 /*
 447 =============
 448 R_DrawViewModel
 449 =============
 450 */
 451 void R_DrawViewModel (void)
 452 {
 453         frameblend_t blend[4];
 454
 455         if (!r_drawviewmodel.value || chase_active.value || envmap || !r_drawentities.value || cl.items & IT_INVISIBILITY || cl.stats[STAT_HEALTH] <= 0 || !cl.viewent.model)
 456                 return;
 457
 458         currententity = &cl.viewent;
 459         currententity->alpha = modelalpha = cl_entities[cl.viewentity].alpha; // LordHavoc: if the player is transparent, so is his gun
 460         currententity->effects = cl_entities[cl.viewentity].effects;
 461         currententity->scale = 1;
 462         VectorCopy(cl_entities[cl.viewentity].colormod, currententity->colormod);
 463
 464         R_LerpUpdate(currententity);
 465         R_LerpAnimation(currententity->model, currententity->frame1, currententity->frame2, currententity->frame1start, currententity->frame2start, currententity->framelerp, blend);
 466
 467         // hack the depth range to prevent view model from poking into walls
 468         glDepthRange (gldepthmin, gldepthmin + 0.3*(gldepthmax-gldepthmin));
 469         R_DrawAliasModel (currententity, false, modelalpha, currententity->model, blend, currententity->skinnum, currententity->origin, currententity->angles, currententity->scale, currententity->effects, currententity->model->flags, currententity->colormap);
 470         glDepthRange (gldepthmin, gldepthmax);
 471 }
 472
 473 void R_DrawBrushModel (entity_t *e);
 474
 475 void RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point, float degrees );
 476
 477 void R_SetFrustum (void)
 478 {
 479         int             i;
 480
 481         if (r_refdef.fov_x == 90)
 482         {
 483                 // front side is visible
 484
 485                 VectorAdd (vpn, vright, frustum[0].normal);
 486                 VectorSubtract (vpn, vright, frustum[1].normal);
 487
 488                 VectorAdd (vpn, vup, frustum[2].normal);
 489                 VectorSubtract (vpn, vup, frustum[3].normal);
 490         }
 491         else
 492         {
 493                 // rotate VPN right by FOV_X/2 degrees
 494                 RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_refdef.fov_x / 2 ) );
 495                 // rotate VPN left by FOV_X/2 degrees
 496                 RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_refdef.fov_x / 2 );
 497                 // rotate VPN up by FOV_X/2 degrees
 498                 RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_refdef.fov_y / 2 );
 499                 // rotate VPN down by FOV_X/2 degrees
 500                 RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_refdef.fov_y / 2 ) );
 501         }
 502
 503         for (i=0 ; i<4 ; i++)
 504         {
 505                 frustum[i].type = PLANE_ANYZ;
 506                 frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
 507 //              frustum[i].signbits = SignbitsForPlane (&frustum[i]);
 508                 BoxOnPlaneSideClassify(&frustum[i]);
 509         }
 510 }
 511
 512 void R_AnimateLight (void);
 513 void V_CalcBlend (void);
 514
 515 /*
 516 ===============
 517 R_SetupFrame
 518 ===============
 519 */
 520 void R_SetupFrame (void)
 521 {
 522 // don't allow cheats in multiplayer
 523         if (cl.maxclients > 1)
 524         {
 525                 Cvar_Set ("r_fullbright", "0");
 526                 Cvar_Set ("r_ambient", "0");
 527         }
 528
 529         R_AnimateLight ();
 530
 531         r_framecount++;
 532
 533 // build the transformation matrix for the given view angles
 534         VectorCopy (r_refdef.vieworg, r_origin);
 535
 536         AngleVectors (r_refdef.viewangles, vpn, vright, vup);
 537
 538 // current viewleaf
 539         r_oldviewleaf = r_viewleaf;
 540         r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
 541
 542         V_SetContentsColor (r_viewleaf->contents);
 543         V_CalcBlend ();
 544
 545         r_cache_thrash = false;
 546
 547         c_brush_polys = 0;
 548         c_alias_polys = 0;
 549         c_light_polys = 0;
 550         c_faces = 0;
 551         c_nodes = 0;
 552         c_leafs = 0;
 553         c_models = 0;
 554         c_bmodels = 0;
 555         c_sprites = 0;
 556         c_particles = 0;
 557 //      c_dlights = 0;
 558 }
 559
 560
 561 void MYgluPerspective( GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar )
 562 {
 563    GLdouble xmin, xmax, ymin, ymax;
 564
 565    ymax = zNear * tan( fovy * M_PI / 360.0 );
 566    ymin = -ymax;
 567
 568    xmin = ymin * aspect;
 569    xmax = ymax * aspect;
 570
 571    glFrustum( xmin, xmax, ymin, ymax, zNear, zFar );
 572 }
 573
 574
 575 extern char skyname[];
 576
 577 /*
 578 =============
 579 R_SetupGL
 580 =============
 581 */
 582 void R_SetupGL (void)
 583 {
 584         float   screenaspect;
 585         extern  int glwidth, glheight;
 586         int             x, x2, y2, y, w, h;
 587
 588         if (!r_render.value)
 589                 return;
 590         //
 591         // set up viewpoint
 592         //
 593         glMatrixMode(GL_PROJECTION);
 594     glLoadIdentity ();
 595         x = r_refdef.vrect.x * glwidth/vid.width;
 596         x2 = (r_refdef.vrect.x + r_refdef.vrect.width) * glwidth/vid.width;
 597         y = (vid.height-r_refdef.vrect.y) * glheight/vid.height;
 598         y2 = (vid.height - (r_refdef.vrect.y + r_refdef.vrect.height)) * glheight/vid.height;
 599
 600         // fudge around because of frac screen scale
 601         if (x > 0)
 602                 x--;
 603         if (x2 < glwidth)
 604                 x2++;
 605         if (y2 < 0)
 606                 y2--;
 607         if (y < glheight)
 608                 y++;
 609
 610         w = x2 - x;
 611         h = y - y2;
 612
 613         if (envmap)
 614         {
 615                 x = y2 = 0;
 616                 w = h = 256;
 617         }
 618
 619         glViewport (glx + x, gly + y2, w, h);
 620     screenaspect = (float)r_refdef.vrect.width/r_refdef.vrect.height;
 621 //      yfov = 2*atan((float)r_refdef.vrect.height/r_refdef.vrect.width)*180/M_PI;
 622 //      if (skyname[0]) // skybox enabled?
 623 //              MYgluPerspective (r_refdef.fov_y,  screenaspect,  4,  r_skyboxsize.value*1.732050807569 + 256); // this is size*sqrt(3) + 256
 624 //      else
 625                 MYgluPerspective (r_refdef.fov_y,  screenaspect,  4,  r_farclip.value);
 626
 627         glCullFace(GL_FRONT);
 628
 629         glMatrixMode(GL_MODELVIEW);
 630     glLoadIdentity ();
 631
 632     glRotatef (-90,  1, 0, 0);      // put Z going up
 633     glRotatef (90,  0, 0, 1);       // put Z going up
 634     glRotatef (-r_refdef.viewangles[2],  1, 0, 0);
 635     glRotatef (-r_refdef.viewangles[0],  0, 1, 0);
 636     glRotatef (-r_refdef.viewangles[1],  0, 0, 1);
 637     glTranslatef (-r_refdef.vieworg[0],  -r_refdef.vieworg[1],  -r_refdef.vieworg[2]);
 638
 639         glGetFloatv (GL_MODELVIEW_MATRIX, r_world_matrix);
 640
 641         //
 642         // set drawing parms
 643         //
 644 //      if (gl_cull.value)
 645                 glEnable(GL_CULL_FACE);
 646 //      else
 647 //              glDisable(GL_CULL_FACE);
 648
 649         glEnable(GL_BLEND); // was Disable
 650         glDisable(GL_ALPHA_TEST);
 651         glAlphaFunc(GL_GREATER, 0.5);
 652         glEnable(GL_DEPTH_TEST);
 653         glDepthMask(1);
 654         glShadeModel(GL_SMOOTH);
 655 }
 656
 657 /*
 658 =============
 659 R_Clear
 660 =============
 661 */
 662 void R_Clear (void)
 663 {
 664         if (!r_render.value)
 665                 return;
 666 //      glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // LordHavoc: moved to SCR_UpdateScreen
 667         gldepthmin = 0;
 668         gldepthmax = 1;
 669         glDepthFunc (GL_LEQUAL);
 670
 671         glDepthRange (gldepthmin, gldepthmax);
 672 }
 673
 674 // LordHavoc: my trick to *FIX* GLQuake lighting once and for all :)
 675 void GL_Brighten()
 676 {
 677         if (!r_render.value)
 678                 return;
 679         glMatrixMode(GL_PROJECTION);
 680     glLoadIdentity ();
 681         glOrtho  (0, vid.width, vid.height, 0, -99999, 99999);
 682         glMatrixMode(GL_MODELVIEW);
 683     glLoadIdentity ();
 684         glDisable (GL_DEPTH_TEST);
 685         glDisable (GL_CULL_FACE);
 686         glDisable(GL_TEXTURE_2D);
 687         glEnable(GL_BLEND);
 688         glBlendFunc (GL_DST_COLOR, GL_ONE);
 689         glBegin (GL_TRIANGLES);
 690         glColor3f (1, 1, 1);
 691         glVertex2f (-5000, -5000);
 692         glVertex2f (10000, -5000);
 693         glVertex2f (-5000, 10000);
 694         glEnd ();
 695         glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 696         glDisable(GL_BLEND);
 697         glEnable(GL_TEXTURE_2D);
 698         glEnable (GL_DEPTH_TEST);
 699         glEnable (GL_CULL_FACE);
 700 }
 701
 702 extern cvar_t contrast;
 703 extern cvar_t brightness;
 704 extern cvar_t gl_lightmode;
 705
 706 void GL_BlendView()
 707 {
 708         if (!r_render.value)
 709                 return;
 710         glMatrixMode(GL_PROJECTION);
 711     glLoadIdentity ();
 712         glOrtho  (0, vid.width, vid.height, 0, -99999, 99999);
 713         glMatrixMode(GL_MODELVIEW);
 714     glLoadIdentity ();
 715         glDisable (GL_DEPTH_TEST);
 716         glDisable (GL_CULL_FACE);
 717         glDisable(GL_TEXTURE_2D);
 718         glEnable(GL_BLEND);
 719         if (lighthalf)
 720         {
 721                 glBlendFunc (GL_DST_COLOR, GL_ONE);
 722                 glBegin (GL_TRIANGLES);
 723                 glColor3f (1, 1, 1);
 724                 glVertex2f (-5000, -5000);
 725                 glVertex2f (10000, -5000);
 726                 glVertex2f (-5000, 10000);
 727                 glEnd ();
 728         }
 729         glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 730         contrast.value = bound(0.2, contrast.value, 1.0);
 731         if (/*gl_polyblend.value && */v_blend[3])
 732         {
 733                 glBegin (GL_TRIANGLES);
 734                 glColor4fv (v_blend);
 735                 glVertex2f (-5000, -5000);
 736                 glVertex2f (10000, -5000);
 737                 glVertex2f (-5000, 10000);
 738                 glEnd ();
 739         }
 740
 741         glEnable (GL_CULL_FACE);
 742         glEnable (GL_DEPTH_TEST);
 743         glDisable(GL_BLEND);
 744         glEnable(GL_TEXTURE_2D);
 745 }
 746
 747 #define TIMEREPORT(VAR) \
 748         if (r_speeds2.value)\
 749         {\
 750                 temptime = currtime;\
 751                 currtime = Sys_FloatTime();\
 752                 VAR = (int) ((currtime - temptime) * 1000000.0);\
 753         }\
 754         else\
 755                 VAR = 0;
 756
 757 /*
 758 ================
 759 R_RenderView
 760
 761 r_refdef must be set before the first call
 762 ================
 763 */
 764 extern qboolean intimerefresh;
 765 extern qboolean skyisvisible;
 766 extern void R_Sky();
 767 extern void UploadLightmaps();
 768 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], r_speeds2_string7[81];
 769 void R_RenderView (void)
 770 {
 771         double starttime, currtime, temptime;
 772         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_drawdecals, time_transpoly, time_blend, time_total;
 773 //      if (r_norefresh.value)
 774 //              return;
 775
 776         if (!r_worldentity.model || !cl.worldmodel)
 777                 Sys_Error ("R_RenderView: NULL worldmodel");
 778
 779         lighthalf = gl_lightmode.value;
 780
 781         FOG_framebegin();
 782
 783         if (r_speeds2.value)
 784         {
 785                 starttime = currtime = Sys_FloatTime();
 786         }
 787         else
 788                 starttime = currtime = 0;
 789         R_Clear();
 790         skyisvisible = false;
 791         TIMEREPORT(time_clear)
 792
 793         // render normal view
 794
 795         R_SetupFrame ();
 796         R_SetFrustum ();
 797         R_SetupGL ();
 798
 799         skypolyclear();
 800         wallpolyclear();
 801         transpolyclear();
 802
 803         TIMEREPORT(time_setup)
 804
 805         R_MarkLeaves ();        // done here so we know if we're in water
 806         R_DrawWorld ();         // adds static entities to the list
 807         TIMEREPORT(time_world)
 808         R_DrawEntitiesOnList1 (); // BSP models
 809         TIMEREPORT(time_bmodels)
 810
 811         UploadLightmaps();
 812         TIMEREPORT(time_upload)
 813
 814         skypolyrender(); // fogged sky polys, affects depth
 815
 816         if (skyname[0] && skyisvisible && !fogenabled)
 817                 R_Sky(); // does not affect depth, draws over the sky polys
 818         TIMEREPORT(time_sky)
 819
 820         wallpolyrender();
 821         TIMEREPORT(time_wall)
 822
 823         if (!intimerefresh && !r_speeds2.value)
 824                 S_ExtraUpdate ();       // don't let sound get messed up if going slow
 825
 826         R_DrawEntitiesOnList2 (); // other models
 827 //      R_RenderDlights ();
 828         R_DrawViewModel ();
 829         TIMEREPORT(time_models)
 830         R_MoveParticles ();
 831         TIMEREPORT(time_moveparticles)
 832         R_DrawParticles ();
 833         TIMEREPORT(time_drawparticles)
 834         R_MoveExplosions();
 835         TIMEREPORT(time_moveexplosions)
 836         R_DrawExplosions();
 837         TIMEREPORT(time_drawexplosions)
 838         R_DrawDecals();
 839         TIMEREPORT(time_drawdecals)
 840
 841         transpolyrender();
 842         TIMEREPORT(time_transpoly)
 843
 844         FOG_frameend();
 845
 846         GL_BlendView();
 847         TIMEREPORT(time_blend)
 848         if (r_speeds2.value)
 849         {
 850                 time_total = (int) ((Sys_FloatTime() - starttime) * 1000000.0);
 851                 sprintf(r_speeds2_string1, "%6i walls %6i dlitwalls %7i modeltris %7i transpoly\n", c_brush_polys, c_light_polys, c_alias_polys, currenttranspoly);
 852                 sprintf(r_speeds2_string2, "BSP: %6i faces %6i nodes %6i leafs\n", c_faces, c_nodes, c_leafs);
 853                 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);
 854                 sprintf(r_speeds2_string4, "%6ius clear  %6ius setup  %6ius world  %6ius bmodel %6ius upload", time_clear, time_setup, time_world, time_bmodels, time_upload);
 855                 sprintf(r_speeds2_string5, "%6ius sky    %6ius wall   %6ius models %6ius mpart  %6ius dpart ", time_sky, time_wall, time_models, time_moveparticles, time_drawparticles);
 856                 sprintf(r_speeds2_string6, "%6ius mexplo %6ius dexplo %6ius decals %6ius trans  %6ius blend ", time_moveexplosions, time_drawexplosions, time_drawdecals, time_transpoly, time_blend);
 857                 sprintf(r_speeds2_string7, "%6ius permdl %6ius total ", time_models / max(c_models, 1), time_total);
 858         }
 859 }