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 // used for dlight push checking and other things
  25 int r_framecount;
  26
  27 mplane_t frustum[4];
  28
  29 matrix4x4_t r_identitymatrix;
  30
  31 int 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 // 8.8 fraction of base light value
  50 unsigned short d_lightstylevalue[256];
  51
  52 cvar_t r_drawentities = {0, "r_drawentities","1"};
  53 cvar_t r_drawviewmodel = {0, "r_drawviewmodel","1"};
  54 cvar_t r_shadows = {CVAR_SAVE, "r_shadows", "1"};
  55 cvar_t r_staticworldlights = {0, "r_staticworldlights", "0"};
  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_fullbrights = {CVAR_SAVE, "r_fullbrights", "1"};
  61
  62 cvar_t gl_fogenable = {0, "gl_fogenable", "0"};
  63 cvar_t gl_fogdensity = {0, "gl_fogdensity", "0.25"};
  64 cvar_t gl_fogred = {0, "gl_fogred","0.3"};
  65 cvar_t gl_foggreen = {0, "gl_foggreen","0.3"};
  66 cvar_t gl_fogblue = {0, "gl_fogblue","0.3"};
  67 cvar_t gl_fogstart = {0, "gl_fogstart", "0"};
  68 cvar_t gl_fogend = {0, "gl_fogend","0"};
  69
  70 cvar_t r_textureunits = {0, "r_textureunits", "32"};
  71
  72 void R_ModulateColors(float *in, float *out, int verts, float r, float g, float b)
  73 {
  74         int i;
  75         for (i = 0;i < verts;i++)
  76         {
  77                 out[0] = in[0] * r;
  78                 out[1] = in[1] * g;
  79                 out[2] = in[2] * b;
  80                 out[3] = in[3];
  81                 in += 4;
  82                 out += 4;
  83         }
  84 }
  85
  86 void R_FillColors(float *out, int verts, float r, float g, float b, float a)
  87 {
  88         int i;
  89         for (i = 0;i < verts;i++)
  90         {
  91                 out[0] = r;
  92                 out[1] = g;
  93                 out[2] = b;
  94                 out[3] = a;
  95                 out += 4;
  96         }
  97 }
  98
  99 /*
 100 ====================
 101 R_TimeRefresh_f
 102
 103 For program optimization
 104 ====================
 105 */
 106 qboolean intimerefresh = 0;
 107 static void R_TimeRefresh_f (void)
 108 {
 109         int i;
 110         float start, stop, time;
 111
 112         intimerefresh = 1;
 113         start = Sys_DoubleTime ();
 114         for (i = 0;i < 128;i++)
 115         {
 116                 r_refdef.viewangles[0] = 0;
 117                 r_refdef.viewangles[1] = i/128.0*360.0;
 118                 r_refdef.viewangles[2] = 0;
 119                 CL_UpdateScreen();
 120         }
 121
 122         stop = Sys_DoubleTime ();
 123         intimerefresh = 0;
 124         time = stop-start;
 125         Con_Printf ("%f seconds (%f fps)\n", time, 128/time);
 126 }
 127
 128 vec3_t fogcolor;
 129 vec_t fogdensity;
 130 float fog_density, fog_red, fog_green, fog_blue;
 131 qboolean fogenabled;
 132 qboolean oldgl_fogenable;
 133 void R_SetupFog(void)
 134 {
 135         if (gamemode == GAME_NEHAHRA)
 136         {
 137                 if (gl_fogenable.integer)
 138                 {
 139                         oldgl_fogenable = true;
 140                         fog_density = gl_fogdensity.value;
 141                         fog_red = gl_fogred.value;
 142                         fog_green = gl_foggreen.value;
 143                         fog_blue = gl_fogblue.value;
 144                 }
 145                 else if (oldgl_fogenable)
 146                 {
 147                         oldgl_fogenable = false;
 148                         fog_density = 0;
 149                         fog_red = 0;
 150                         fog_green = 0;
 151                         fog_blue = 0;
 152                 }
 153         }
 154         if (fog_density)
 155         {
 156                 fogcolor[0] = fog_red   = bound(0.0f, fog_red  , 1.0f);
 157                 fogcolor[1] = fog_green = bound(0.0f, fog_green, 1.0f);
 158                 fogcolor[2] = fog_blue  = bound(0.0f, fog_blue , 1.0f);
 159         }
 160         if (fog_density)
 161         {
 162                 fogenabled = true;
 163                 fogdensity = -4000.0f / (fog_density * fog_density);
 164                 // fog color was already set
 165         }
 166         else
 167                 fogenabled = false;
 168 }
 169
 170 // FIXME: move this to client?
 171 void FOG_clear(void)
 172 {
 173         if (gamemode == GAME_NEHAHRA)
 174         {
 175                 Cvar_Set("gl_fogenable", "0");
 176                 Cvar_Set("gl_fogdensity", "0.2");
 177                 Cvar_Set("gl_fogred", "0.3");
 178                 Cvar_Set("gl_foggreen", "0.3");
 179                 Cvar_Set("gl_fogblue", "0.3");
 180         }
 181         fog_density = fog_red = fog_green = fog_blue = 0.0f;
 182 }
 183
 184 // FIXME: move this to client?
 185 void FOG_registercvars(void)
 186 {
 187         if (gamemode == GAME_NEHAHRA)
 188         {
 189                 Cvar_RegisterVariable (&gl_fogenable);
 190                 Cvar_RegisterVariable (&gl_fogdensity);
 191                 Cvar_RegisterVariable (&gl_fogred);
 192                 Cvar_RegisterVariable (&gl_foggreen);
 193                 Cvar_RegisterVariable (&gl_fogblue);
 194                 Cvar_RegisterVariable (&gl_fogstart);
 195                 Cvar_RegisterVariable (&gl_fogend);
 196         }
 197 }
 198
 199 void gl_main_start(void)
 200 {
 201 }
 202
 203 void gl_main_shutdown(void)
 204 {
 205 }
 206
 207 extern void CL_ParseEntityLump(char *entitystring);
 208 void gl_main_newmap(void)
 209 {
 210         if (cl.worldmodel && cl.worldmodel->entities)
 211                 CL_ParseEntityLump(cl.worldmodel->entities);
 212         r_framecount = 1;
 213 }
 214
 215 void GL_Main_Init(void)
 216 {
 217         Matrix4x4_CreateIdentity(&r_identitymatrix);
 218 // FIXME: move this to client?
 219         FOG_registercvars();
 220         Cmd_AddCommand ("timerefresh", R_TimeRefresh_f);
 221         Cvar_RegisterVariable (&r_drawentities);
 222         Cvar_RegisterVariable (&r_drawviewmodel);
 223         Cvar_RegisterVariable (&r_shadows);
 224         Cvar_RegisterVariable (&r_staticworldlights);
 225         Cvar_RegisterVariable (&r_speeds);
 226         Cvar_RegisterVariable (&r_fullbrights);
 227         Cvar_RegisterVariable (&r_wateralpha);
 228         Cvar_RegisterVariable (&r_dynamic);
 229         Cvar_RegisterVariable (&r_fullbright);
 230         Cvar_RegisterVariable (&r_textureunits);
 231         if (gamemode == GAME_NEHAHRA)
 232                 Cvar_SetValue("r_fullbrights", 0);
 233         R_RegisterModule("GL_Main", gl_main_start, gl_main_shutdown, gl_main_newmap);
 234 }
 235
 236 vec3_t r_farclip_origin;
 237 vec3_t r_farclip_direction;
 238 vec_t r_farclip_directiondist;
 239 vec_t r_farclip_meshfarclip;
 240 int r_farclip_directionbit0;
 241 int r_farclip_directionbit1;
 242 int r_farclip_directionbit2;
 243
 244 // start a farclip measuring session
 245 void R_FarClip_Start(vec3_t origin, vec3_t direction, vec_t startfarclip)
 246 {
 247         VectorCopy(origin, r_farclip_origin);
 248         VectorCopy(direction, r_farclip_direction);
 249         r_farclip_directiondist = DotProduct(r_farclip_origin, r_farclip_direction);
 250         r_farclip_directionbit0 = r_farclip_direction[0] < 0;
 251         r_farclip_directionbit1 = r_farclip_direction[1] < 0;
 252         r_farclip_directionbit2 = r_farclip_direction[2] < 0;
 253         r_farclip_meshfarclip = r_farclip_directiondist + startfarclip;
 254 }
 255
 256 // enlarge farclip to accomodate box
 257 void R_FarClip_Box(vec3_t mins, vec3_t maxs)
 258 {
 259         float d;
 260         d = (r_farclip_directionbit0 ? mins[0] : maxs[0]) * r_farclip_direction[0]
 261           + (r_farclip_directionbit1 ? mins[1] : maxs[1]) * r_farclip_direction[1]
 262           + (r_farclip_directionbit2 ? mins[2] : maxs[2]) * r_farclip_direction[2];
 263         if (r_farclip_meshfarclip < d)
 264                 r_farclip_meshfarclip = d;
 265 }
 266
 267 // return farclip value
 268 float R_FarClip_Finish(void)
 269 {
 270         return r_farclip_meshfarclip - r_farclip_directiondist;
 271 }
 272
 273 /*
 274 ===============
 275 R_NewMap
 276 ===============
 277 */
 278 void R_NewMap (void)
 279 {
 280         R_Modules_NewMap();
 281 }
 282
 283 extern void R_Textures_Init(void);
 284 extern void Mod_RenderInit(void);
 285 extern void GL_Draw_Init(void);
 286 extern void GL_Main_Init(void);
 287 extern void R_Shadow_Init(void);
 288 extern void GL_Models_Init(void);
 289 extern void R_Sky_Init(void);
 290 extern void GL_Surf_Init(void);
 291 extern void R_Crosshairs_Init(void);
 292 extern void R_Light_Init(void);
 293 extern void R_Particles_Init(void);
 294 extern void R_Explosion_Init(void);
 295 extern void ui_init(void);
 296 extern void gl_backend_init(void);
 297 extern void Sbar_Init(void);
 298
 299 void Render_Init(void)
 300 {
 301         R_Textures_Init();
 302         Mod_RenderInit();
 303         gl_backend_init();
 304         R_MeshQueue_Init();
 305         GL_Draw_Init();
 306         GL_Main_Init();
 307         R_Shadow_Init();
 308         GL_Models_Init();
 309         R_Sky_Init();
 310         GL_Surf_Init();
 311         R_Crosshairs_Init();
 312         R_Light_Init();
 313         R_Particles_Init();
 314         R_Explosion_Init();
 315         ui_init();
 316         Sbar_Init();
 317 }
 318
 319 /*
 320 ===============
 321 GL_Init
 322 ===============
 323 */
 324 extern char *ENGINE_EXTENSIONS;
 325 void GL_Init (void)
 326 {
 327         VID_CheckExtensions();
 328
 329         // LordHavoc: report supported extensions
 330         Con_Printf ("\nengine extensions: %s\n", ENGINE_EXTENSIONS);
 331 }
 332
 333 int R_CullBox(const vec3_t emins, const vec3_t emaxs)
 334 {
 335         int i;
 336         mplane_t *p;
 337         for (i = 0;i < 4;i++)
 338         {
 339                 p = frustum + i;
 340                 switch(p->signbits)
 341                 {
 342                 default:
 343                 case 0:
 344                         if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
 345                                 return true;
 346                         break;
 347                 case 1:
 348                         if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
 349                                 return true;
 350                         break;
 351                 case 2:
 352                         if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
 353                                 return true;
 354                         break;
 355                 case 3:
 356                         if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
 357                                 return true;
 358                         break;
 359                 case 4:
 360                         if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
 361                                 return true;
 362                         break;
 363                 case 5:
 364                         if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
 365                                 return true;
 366                         break;
 367                 case 6:
 368                         if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
 369                                 return true;
 370                         break;
 371                 case 7:
 372                         if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
 373                                 return true;
 374                         break;
 375                 }
 376         }
 377         return false;
 378 }
 379
 380 int R_NotCulledBox(const vec3_t emins, const vec3_t emaxs)
 381 {
 382         int i;
 383         mplane_t *p;
 384         for (i = 0;i < 4;i++)
 385         {
 386                 p = frustum + i;
 387                 switch(p->signbits)
 388                 {
 389                 default:
 390                 case 0:
 391                         if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
 392                                 return false;
 393                         break;
 394                 case 1:
 395                         if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
 396                                 return false;
 397                         break;
 398                 case 2:
 399                         if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
 400                                 return false;
 401                         break;
 402                 case 3:
 403                         if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
 404                                 return false;
 405                         break;
 406                 case 4:
 407                         if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
 408                                 return false;
 409                         break;
 410                 case 5:
 411                         if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
 412                                 return false;
 413                         break;
 414                 case 6:
 415                         if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
 416                                 return false;
 417                         break;
 418                 case 7:
 419                         if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
 420                                 return false;
 421                         break;
 422                 }
 423         }
 424         return true;
 425 }
 426
 427
 428 //==================================================================================
 429
 430 static void R_MarkEntities (void)
 431 {
 432         int i;
 433         vec3_t v;
 434         entity_render_t *ent;
 435
 436         ent = &cl_entities[0].render;
 437         Matrix4x4_CreateIdentity(&ent->matrix);
 438         Matrix4x4_CreateIdentity(&ent->inversematrix);
 439
 440         if (cl.worldmodel)
 441                 R_FarClip_Box(cl.worldmodel->normalmins, cl.worldmodel->normalmaxs);
 442
 443         if (!r_drawentities.integer)
 444                 return;
 445
 446         for (i = 0;i < r_refdef.numentities;i++)
 447         {
 448                 ent = r_refdef.entities[i];
 449                 Mod_CheckLoaded(ent->model);
 450
 451                 // move view-relative models to where they should be
 452                 if (ent->flags & RENDER_VIEWMODEL)
 453                 {
 454                         // remove flag so it will not be repeated incase RelinkEntities is not called again for a while
 455                         ent->flags -= RENDER_VIEWMODEL;
 456                         // transform origin
 457                         VectorCopy(ent->origin, v);
 458                         ent->origin[0] = v[0] * vpn[0] + v[1] * vright[0] + v[2] * vup[0] + r_origin[0];
 459                         ent->origin[1] = v[0] * vpn[1] + v[1] * vright[1] + v[2] * vup[1] + r_origin[1];
 460                         ent->origin[2] = v[0] * vpn[2] + v[1] * vright[2] + v[2] * vup[2] + r_origin[2];
 461                         // adjust angles
 462                         VectorAdd(ent->angles, r_refdef.viewangles, ent->angles);
 463                 }
 464
 465                 VectorCopy(ent->angles, v);
 466                 if (!ent->model || ent->model->type != mod_brush)
 467                         v[0] = -v[0];
 468                 Matrix4x4_CreateFromQuakeEntity(&ent->matrix, ent->origin[0], ent->origin[1], ent->origin[2], v[0], v[1], v[2], ent->scale);
 469                 Matrix4x4_Invert_Simple(&ent->inversematrix, &ent->matrix);
 470                 R_LerpAnimation(ent);
 471                 R_UpdateEntLights(ent);
 472                 if (R_NotCulledBox(ent->mins, ent->maxs))
 473                 {
 474                         ent->visframe = r_framecount;
 475                         R_FarClip_Box(ent->mins, ent->maxs);
 476                 }
 477         }
 478 }
 479
 480 // only used if skyrendermasked, and normally returns false
 481 int R_DrawBrushModelsSky (void)
 482 {
 483         int i, sky;
 484         entity_render_t *ent;
 485
 486         if (!r_drawentities.integer)
 487                 return false;
 488
 489         sky = false;
 490         for (i = 0;i < r_refdef.numentities;i++)
 491         {
 492                 ent = r_refdef.entities[i];
 493                 if (ent->visframe == r_framecount && ent->model && ent->model->DrawSky)
 494                 {
 495                         ent->model->DrawSky(ent);
 496                         sky = true;
 497                 }
 498         }
 499         return sky;
 500 }
 501
 502 /*
 503 =============
 504 R_DrawViewModel
 505 =============
 506 */
 507 void R_DrawViewModel (void)
 508 {
 509         entity_render_t *ent;
 510
 511         // FIXME: move these checks to client
 512         if (!r_drawviewmodel.integer || chase_active.integer || envmap || !r_drawentities.integer || cl.items & IT_INVISIBILITY || cl.stats[STAT_HEALTH] <= 0 || !cl.viewent.render.model)
 513                 return;
 514
 515         ent = &cl.viewent.render;
 516         Mod_CheckLoaded(ent->model);
 517         R_LerpAnimation(ent);
 518         Matrix4x4_CreateFromQuakeEntity(&ent->matrix, ent->origin[0], ent->origin[1], ent->origin[2], -ent->angles[0], ent->angles[1], ent->angles[2], ent->scale);
 519         Matrix4x4_Invert_Simple(&ent->inversematrix, &ent->matrix);
 520         R_UpdateEntLights(ent);
 521         ent->model->Draw(ent);
 522 }
 523
 524 void R_DrawNoModel(entity_render_t *ent);
 525 void R_DrawModels (int baselighting)
 526 {
 527         int i;
 528         entity_render_t *ent;
 529
 530         if (!r_drawentities.integer)
 531                 return;
 532
 533         R_DrawViewModel();
 534         for (i = 0;i < r_refdef.numentities;i++)
 535         {
 536                 ent = r_refdef.entities[i];
 537                 if (ent->visframe == r_framecount)
 538                 {
 539                         if (ent->model)
 540                         {
 541                                 if (baselighting && ent->model->DrawBaseLighting != NULL)
 542                                 {
 543                                         if (ent->model->DrawBaseLighting)
 544                                                 ent->model->DrawBaseLighting(ent);
 545                                 }
 546                                 else if (ent->model->Draw)
 547                                         ent->model->Draw(ent);
 548                         }
 549                         else
 550                                 R_DrawNoModel(ent);
 551                 }
 552         }
 553 }
 554
 555 void R_DrawFakeShadows (void)
 556 {
 557         int i;
 558         entity_render_t *ent;
 559
 560         ent = &cl_entities[0].render;
 561         if (ent->model && ent->model->DrawFakeShadow)
 562                 ent->model->DrawFakeShadow(ent);
 563
 564         if (!r_drawentities.integer)
 565                 return;
 566         for (i = 0;i < r_refdef.numentities;i++)
 567         {
 568                 ent = r_refdef.entities[i];
 569                 if (ent->model && ent->model->DrawFakeShadow)
 570                         ent->model->DrawFakeShadow(ent);
 571         }
 572 }
 573
 574 #include "r_shadow.h"
 575
 576 void R_TestAndDrawShadowVolume(entity_render_t *ent, vec3_t lightorigin, float lightradius, int visiblevolume)
 577 {
 578         int i;
 579         vec3_t p, p2, temp, relativelightorigin;
 580         float dist, projectdistance;
 581         // rough checks
 582         if (ent->model && ent->model->DrawShadowVolume)
 583         {
 584                 temp[0] = bound(ent->mins[0], lightorigin[0], ent->maxs[0]) - lightorigin[0];
 585                 temp[1] = bound(ent->mins[1], lightorigin[1], ent->maxs[1]) - lightorigin[1];
 586                 temp[2] = bound(ent->mins[2], lightorigin[2], ent->maxs[2]) - lightorigin[2];
 587                 dist = DotProduct(temp, temp);
 588                 if (dist < lightradius * lightradius)
 589                 {
 590                         projectdistance = lightradius - sqrt(dist);
 591                         {
 592 #if 0
 593                         int d0, d1, d2, d3;
 594                         // calculate projected bounding box and decide if it is on-screen
 595                         d0 = false;
 596                         d1 = false;
 597                         d2 = false;
 598                         d3 = false;
 599                         for (i = 0;i < 8;i++)
 600                         {
 601                                 p[0] = i & 1 ? ent->maxs[0] : ent->mins[0];
 602                                 p[1] = i & 2 ? ent->maxs[1] : ent->mins[1];
 603                                 p[2] = i & 4 ? ent->maxs[2] : ent->mins[2];
 604                                 VectorSubtract(p, lightorigin, temp);
 605                                 dist = projectdistance / sqrt(DotProduct(temp, temp));
 606                                 VectorMA(p, dist, temp, p2);
 607                                 if (!d0 && (DotProduct(p , frustum[0].normal) < frustum[0].dist || DotProduct(p2, frustum[0].normal) < frustum[0].dist))
 608                                         d0 = true;
 609                                 if (!d1 && (DotProduct(p , frustum[1].normal) < frustum[1].dist || DotProduct(p2, frustum[1].normal) < frustum[1].dist))
 610                                         d1 = true;
 611                                 if (!d2 && (DotProduct(p , frustum[2].normal) < frustum[2].dist || DotProduct(p2, frustum[2].normal) < frustum[2].dist))
 612                                         d2 = true;
 613                                 if (!d3 && (DotProduct(p , frustum[3].normal) < frustum[3].dist || DotProduct(p2, frustum[3].normal) < frustum[3].dist))
 614                                         d3 = true;
 615                         }
 616                         if (d0 && d1 && d2 && d3)
 617 #else
 618                         vec3_t mins, maxs;
 619                         // calculate projected bounding box and decide if it is on-screen
 620                         VectorCopy(ent->mins, mins);
 621                         VectorCopy(ent->maxs, maxs);
 622                         for (i = 0;i < 8;i++)
 623                         {
 624                                 p[0] = i & 1 ? ent->maxs[0] : ent->mins[0];
 625                                 p[1] = i & 2 ? ent->maxs[1] : ent->mins[1];
 626                                 p[2] = i & 4 ? ent->maxs[2] : ent->mins[2];
 627                                 VectorSubtract(p, lightorigin, temp);
 628                                 dist = projectdistance / sqrt(DotProduct(temp, temp));
 629                                 VectorMA(p, dist, temp, p2);
 630                                 if (mins[0] > p2[0]) mins[0] = p2[0];if (maxs[0] < p2[0]) maxs[0] = p2[0];
 631                                 if (mins[1] > p2[1]) mins[1] = p2[1];if (maxs[1] < p2[1]) maxs[1] = p2[1];
 632                                 if (mins[2] > p2[2]) mins[2] = p2[2];if (maxs[2] < p2[2]) maxs[2] = p2[2];
 633                         }
 634                         if (R_NotCulledBox(mins, maxs))
 635 #endif
 636                         {
 637                                 Matrix4x4_Transform(&ent->inversematrix, lightorigin, relativelightorigin);
 638                                 ent->model->DrawShadowVolume (ent, relativelightorigin, lightradius, visiblevolume);
 639                         }
 640                         }
 641                 }
 642         }
 643 }
 644
 645 void R_DrawWorldLightShadowVolume(mlight_t *sl, int visiblevolume)
 646 {
 647         shadowmesh_t *mesh;
 648         R_Mesh_Matrix(&cl_entities[0].render.matrix);
 649         for (mesh = sl->shadowvolume;mesh;mesh = mesh->next)
 650         {
 651                 memcpy(varray_vertex, mesh->verts, mesh->numverts * sizeof(float[4]));
 652                 R_Shadow_RenderVolume(mesh->numverts, mesh->numtriangles, mesh->elements, visiblevolume);
 653         }
 654 }
 655
 656 void R_DrawShadowVolumes (void)
 657 {
 658         int i, lnum;
 659         entity_render_t *ent;
 660         vec3_t mins, maxs;//, relativelightorigin;
 661         mlight_t *sl;
 662         rdlight_t *rd;
 663         rmeshstate_t m;
 664
 665         for (lnum = 0, sl = cl.worldmodel->lights;lnum < cl.worldmodel->numlights;lnum++, sl++)
 666         {
 667                 if (d_lightstylevalue[sl->style] <= 0)
 668                         continue;
 669                 if (r_light_debuglight.integer >= 0 && lnum != r_light_debuglight.integer)
 670                         continue;
 671                 /*
 672                 mins[0] = sl->origin[0] - sl->cullradius;
 673                 maxs[0] = sl->origin[0] + sl->cullradius;
 674                 mins[1] = sl->origin[1] - sl->cullradius;
 675                 maxs[1] = sl->origin[1] + sl->cullradius;
 676                 mins[2] = sl->origin[2] - sl->cullradius;
 677                 maxs[2] = sl->origin[2] + sl->cullradius;
 678                 if (R_CullBox(mins, maxs))
 679                         continue;
 680                 */
 681                 if (R_CullBox(sl->mins, sl->maxs))
 682                         continue;
 683                 memset(&m, 0, sizeof(m));
 684                 m.blendfunc1 = GL_ONE;
 685                 m.blendfunc2 = GL_ONE;
 686                 R_Mesh_State(&m);
 687                 GL_Color(0.0 * r_colorscale, 0.0125 * r_colorscale, 0.1 * r_colorscale, 1);
 688                 if (sl->shadowvolume && r_staticworldlights.integer)
 689                         R_DrawWorldLightShadowVolume(sl, true);
 690                 else
 691                 {
 692                         ent = &cl_entities[0].render;
 693                         R_TestAndDrawShadowVolume(ent, sl->origin, sl->cullradius, true);
 694                 }
 695                 /*
 696                 ent = &cl_entities[0].render;
 697                 if (ent->model && ent->model->DrawShadowVolume && ent->maxs[0] >= mins[0] && ent->mins[0] <= maxs[0] && ent->maxs[1] >= mins[1] && ent->mins[1] <= maxs[1] && ent->maxs[2] >= mins[2] && ent->mins[2] <= maxs[2])
 698                 {
 699                         Matrix4x4_Transform(&ent->inversematrix, sl->origin, relativelightorigin);
 700                         ent->model->DrawShadowVolume (ent, relativelightorigin, sl->cullradius, true);
 701                 }
 702                 */
 703                 if (r_drawentities.integer)
 704                 {
 705                         for (i = 0;i < r_refdef.numentities;i++)
 706                         {
 707                                 ent = r_refdef.entities[i];
 708                                 /*
 709                                 if (ent->mins[0] <= sl->maxs[0]
 710                                  && ent->maxs[0] >= sl->mins[0]
 711                                  && ent->mins[1] <= sl->maxs[1]
 712                                  && ent->maxs[1] >= sl->mins[1]
 713                                  && ent->mins[2] <= sl->maxs[2]
 714                                  && ent->maxs[2] >= sl->mins[2])
 715                                 */
 716                                         R_TestAndDrawShadowVolume(ent, sl->origin, sl->cullradius, true);
 717                                 /*
 718                                 ent = r_refdef.entities[i];
 719                                 if (ent->model && ent->model->DrawShadowVolume && ent->maxs[0] >= mins[0] && ent->mins[0] <= maxs[0] && ent->maxs[1] >= mins[1] && ent->mins[1] <= maxs[1] && ent->maxs[2] >= mins[2] && ent->mins[2] <= maxs[2])
 720                                 {
 721                                         Matrix4x4_Transform(&ent->inversematrix, sl->origin, relativelightorigin);
 722                                         ent->model->DrawShadowVolume (ent, relativelightorigin, sl->cullradius, true);
 723                                 }
 724                                 */
 725                         }
 726                 }
 727         }
 728
 729         for (lnum = 0, rd = r_dlight;lnum < r_numdlights;lnum++, rd++)
 730         {
 731                 mins[0] = rd->origin[0] - rd->cullradius;
 732                 maxs[0] = rd->origin[0] + rd->cullradius;
 733                 mins[1] = rd->origin[1] - rd->cullradius;
 734                 maxs[1] = rd->origin[1] + rd->cullradius;
 735                 mins[2] = rd->origin[2] - rd->cullradius;
 736                 maxs[2] = rd->origin[2] + rd->cullradius;
 737                 if (R_CullBox(mins, maxs))
 738                         continue;
 739                 memset(&m, 0, sizeof(m));
 740                 m.blendfunc1 = GL_ONE;
 741                 m.blendfunc2 = GL_ONE;
 742                 R_Mesh_State(&m);
 743                 GL_Color(0.1 * r_colorscale, 0.0125 * r_colorscale, 0.0 * r_colorscale, 1);
 744                 ent = &cl_entities[0].render;
 745                 if (ent != rd->ent)
 746                         R_TestAndDrawShadowVolume(ent, rd->origin, rd->cullradius, true);
 747                 /*
 748                 ent = &cl_entities[0].render;
 749                 if (ent != rd->ent && ent->model && ent->model->DrawShadowVolume && ent->maxs[0] >= mins[0] && ent->mins[0] <= maxs[0] && ent->maxs[1] >= mins[1] && ent->mins[1] <= maxs[1] && ent->maxs[2] >= mins[2] && ent->mins[2] <= maxs[2])
 750                 {
 751                         Matrix4x4_Transform(&ent->inversematrix, rd->origin, relativelightorigin);
 752                         ent->model->DrawShadowVolume (ent, relativelightorigin, rd->cullradius, true);
 753                 }
 754                 */
 755                 if (r_drawentities.integer)
 756                 {
 757                         for (i = 0;i < r_refdef.numentities;i++)
 758                         {
 759                                 ent = r_refdef.entities[i];
 760                                 if (ent != rd->ent)
 761                                         R_TestAndDrawShadowVolume(ent, rd->origin, rd->cullradius, true);
 762                                 /*
 763                                 ent = r_refdef.entities[i];
 764                                 if (ent != rd->ent && ent->model && ent->model->DrawShadowVolume && ent->maxs[0] >= mins[0] && ent->mins[0] <= maxs[0] && ent->maxs[1] >= mins[1] && ent->mins[1] <= maxs[1] && ent->maxs[2] >= mins[2] && ent->mins[2] <= maxs[2])
 765                                 {
 766                                         Matrix4x4_Transform(&ent->inversematrix, rd->origin, relativelightorigin);
 767                                         ent->model->DrawShadowVolume (ent, relativelightorigin, rd->cullradius, true);
 768                                 }
 769                                 */
 770                         }
 771                 }
 772         }
 773 }
 774
 775 #define SHADOWSPHERE_SEGMENTS 16
 776
 777 shadowmesh_t *shadowsphere;
 778 void R_CreateShadowSphere(void)
 779 {
 780         int i, j;
 781         vec3_t angles, angles2, angles3, angles4;
 782         float verts[12];
 783         shadowsphere = Mod_ShadowMesh_Begin(zonemempool);
 784         for (i = 0;i < SHADOWSPHERE_SEGMENTS / 2;i++)
 785         {
 786                 for (j = 0;j < SHADOWSPHERE_SEGMENTS;j++)
 787                 {
 788                         angles[0] = (i * 360.0f / SHADOWSPHERE_SEGMENTS) + 90.0f;
 789                         angles[1] = j * 360.0f / SHADOWSPHERE_SEGMENTS;
 790                         angles[2] = 0;
 791                         VectorCopy(angles, angles2);
 792                         VectorCopy(angles, angles3);
 793                         VectorCopy(angles, angles4);
 794                         angles2[1] += 360.0f / SHADOWSPHERE_SEGMENTS;
 795                         angles3[0] += 360.0f / SHADOWSPHERE_SEGMENTS;
 796                         angles3[1] += 360.0f / SHADOWSPHERE_SEGMENTS;
 797                         angles4[0] += 360.0f / SHADOWSPHERE_SEGMENTS;
 798                         AngleVectorsFLU(angles, verts, NULL, NULL);
 799                         AngleVectorsFLU(angles2, verts + 9, NULL, NULL);
 800                         AngleVectorsFLU(angles3, verts + 6, NULL, NULL);
 801                         AngleVectorsFLU(angles4, verts + 3, NULL, NULL);
 802                         VectorScale(&verts[0], 1.0f, &verts[0]);
 803                         VectorScale(&verts[3], 1.0f, &verts[3]);
 804                         VectorScale(&verts[6], 1.0f, &verts[6]);
 805                         VectorScale(&verts[9], 1.0f, &verts[9]);
 806                         Mod_ShadowMesh_AddPolygon(zonemempool, shadowsphere, 4, verts);
 807                         /*
 808                         AngleVectorsFLU(angles, verts, NULL, NULL);
 809                         AngleVectorsFLU(angles2, verts + 3, NULL, NULL);
 810                         AngleVectorsFLU(angles3, verts + 6, NULL, NULL);
 811                         AngleVectorsFLU(angles4, verts + 9, NULL, NULL);
 812                         VectorScale(&verts[0], -4.0f, &verts[0]);
 813                         VectorScale(&verts[3], -4.0f, &verts[3]);
 814                         VectorScale(&verts[6], -4.0f, &verts[6]);
 815                         VectorScale(&verts[9], -4.0f, &verts[9]);
 816                         Mod_ShadowMesh_AddPolygon(zonemempool, shadowsphere, 4, verts);
 817                         */
 818                 }
 819         }
 820         shadowsphere = Mod_ShadowMesh_Finish(zonemempool, shadowsphere);
 821 }
 822
 823
 824 void R_DrawShadowSphere(vec3_t origin, float cullradius, float lightradius, int visiblevolume)
 825 {
 826         shadowmesh_t *mesh;
 827         matrix4x4_t matrix;
 828         if (!shadowsphere)
 829                 R_CreateShadowSphere();
 830         Matrix4x4_CreateScale(&matrix, lightradius);
 831         Matrix4x4_ConcatTranslate(&matrix, origin[0], origin[1], origin[2]);
 832         R_Mesh_Matrix(&matrix);
 833         for (mesh = shadowsphere;mesh;mesh = mesh->next)
 834         {
 835                 memcpy(varray_vertex, mesh->verts, mesh->numverts * sizeof(float[4]));
 836                 R_Shadow_RenderVolume(mesh->numverts, mesh->numtriangles, mesh->elements, visiblevolume);
 837         }
 838         Matrix4x4_CreateScale(&matrix, -cullradius);
 839         Matrix4x4_ConcatTranslate(&matrix, origin[0], origin[1], origin[2]);
 840         R_Mesh_Matrix(&matrix);
 841         for (mesh = shadowsphere;mesh;mesh = mesh->next)
 842         {
 843                 memcpy(varray_vertex, mesh->verts, mesh->numverts * sizeof(float[4]));
 844                 R_Shadow_RenderVolume(mesh->numverts, mesh->numtriangles, mesh->elements, visiblevolume);
 845         }
 846 }
 847
 848 void R_ShadowVolumeLighting (void)
 849 {
 850         int i;
 851         entity_render_t *ent;
 852         int lnum;
 853         float f;
 854         vec3_t mins, maxs, relativelightorigin, relativeeyeorigin, lightcolor;
 855         mlight_t *sl;
 856         rdlight_t *rd;
 857
 858         R_Shadow_Stage_Begin();
 859         for (lnum = 0, sl = cl.worldmodel->lights;lnum < cl.worldmodel->numlights;lnum++, sl++)
 860         {
 861                 if (d_lightstylevalue[sl->style] <= 0)
 862                         continue;
 863                 if (r_light_debuglight.integer >= 0 && lnum != r_light_debuglight.integer)
 864                         continue;
 865                 VectorCopy(sl->mins, mins);
 866                 VectorCopy(sl->maxs, maxs);
 867                 if (R_CullBox(mins, maxs))
 868                         continue;
 869
 870                 f = d_lightstylevalue[sl->style] * (1.0f / 32768.0f);
 871                 VectorScale(sl->light, f, lightcolor);
 872
 873                 R_Shadow_Stage_ShadowVolumes();
 874                 R_DrawShadowSphere(sl->origin, sl->cullradius, sl->lightradius * 2, false);
 875                 if (sl->shadowvolume && r_staticworldlights.integer)
 876                         R_DrawWorldLightShadowVolume(sl, false);
 877                 else
 878                         R_TestAndDrawShadowVolume(&cl_entities[0].render, sl->origin, sl->cullradius, false);
 879                 if (r_drawentities.integer)
 880                 {
 881                         for (i = 0;i < r_refdef.numentities;i++)
 882                         {
 883                                 ent = r_refdef.entities[i];
 884                                 /*
 885                                 if (ent->maxs[0] >= mins[0]
 886                                  && ent->mins[0] <= maxs[0]
 887                                  && ent->maxs[1] >= mins[1]
 888                                  && ent->mins[1] <= maxs[1]
 889                                  && ent->maxs[2] >= mins[2]
 890                                  && ent->mins[2] <= maxs[2])
 891                                 */
 892                                         R_TestAndDrawShadowVolume(r_refdef.entities[i], sl->origin, sl->cullradius, false);
 893                         }
 894                 }
 895
 896                 R_Shadow_Stage_Light();
 897                 ent = &cl_entities[0].render;
 898                 if (ent->model && ent->model->DrawLight)
 899                 {
 900                         Matrix4x4_Transform(&ent->inversematrix, sl->origin, relativelightorigin);
 901                         Matrix4x4_Transform(&ent->inversematrix, r_origin, relativeeyeorigin);
 902                         ent->model->DrawLight(ent, relativelightorigin, relativeeyeorigin, sl->lightradius, sl->distbias, sl->subtract, lightcolor);
 903                 }
 904                 if (r_drawentities.integer)
 905                 {
 906                         for (i = 0;i < r_refdef.numentities;i++)
 907                         {
 908                                 ent = r_refdef.entities[i];
 909                                 if (ent->visframe == r_framecount && ent->model && ent->model->DrawLight
 910                                 /*
 911                                  && ent->maxs[0] >= mins[0]
 912                                  && ent->mins[0] <= maxs[0]
 913                                  && ent->maxs[1] >= mins[1]
 914                                  && ent->mins[1] <= maxs[1]
 915                                  && ent->maxs[2] >= mins[2]
 916                                  && ent->mins[2] <= maxs[2]*/)
 917                                 {
 918                                         Matrix4x4_Transform(&ent->inversematrix, sl->origin, relativelightorigin);
 919                                         Matrix4x4_Transform(&ent->inversematrix, r_origin, relativeeyeorigin);
 920                                         ent->model->DrawLight(ent, relativelightorigin, relativeeyeorigin, sl->lightradius, sl->distbias, sl->subtract, lightcolor);
 921                                 }
 922                         }
 923                 }
 924         }
 925         for (lnum = 0, rd = r_dlight;lnum < r_numdlights;lnum++, rd++)
 926         {
 927                 mins[0] = rd->origin[0] - rd->cullradius;
 928                 maxs[0] = rd->origin[0] + rd->cullradius;
 929                 mins[1] = rd->origin[1] - rd->cullradius;
 930                 maxs[1] = rd->origin[1] + rd->cullradius;
 931                 mins[2] = rd->origin[2] - rd->cullradius;
 932                 maxs[2] = rd->origin[2] + rd->cullradius;
 933                 if (R_CullBox(mins, maxs))
 934                         continue;
 935
 936                 R_Shadow_Stage_ShadowVolumes();
 937                 R_TestAndDrawShadowVolume(&cl_entities[0].render, rd->origin, rd->cullradius, false);
 938                 if (r_drawentities.integer)
 939                 {
 940                         for (i = 0;i < r_refdef.numentities;i++)
 941                         {
 942                                 ent = r_refdef.entities[i];
 943                                 /*
 944                                 if (ent->maxs[0] >= mins[0]
 945                                  && ent->mins[0] <= maxs[0]
 946                                  && ent->maxs[1] >= mins[1]
 947                                  && ent->mins[1] <= maxs[1]
 948                                  && ent->maxs[2] >= mins[2]
 949                                  && ent->mins[2] <= maxs[2])
 950                                 */
 951                                         R_TestAndDrawShadowVolume(ent, rd->origin, rd->cullradius, false);
 952                         }
 953                 }
 954
 955                 R_Shadow_Stage_Light();
 956                 ent = &cl_entities[0].render;
 957                 if (ent->model && ent->model->DrawLight)
 958                 {
 959                         Matrix4x4_Transform(&ent->inversematrix, rd->origin, relativelightorigin);
 960                         Matrix4x4_Transform(&ent->inversematrix, r_origin, relativeeyeorigin);
 961                         ent->model->DrawLight(ent, relativelightorigin, relativeeyeorigin, rd->cullradius, LIGHTOFFSET, rd->subtract, rd->light);
 962                 }
 963                 if (r_drawentities.integer)
 964                 {
 965                         for (i = 0;i < r_refdef.numentities;i++)
 966                         {
 967                                 ent = r_refdef.entities[i];
 968                                 if (ent->visframe == r_framecount && ent->model && ent->model->DrawLight
 969                                 /*
 970                                  && ent->maxs[0] >= mins[0]
 971                                  && ent->mins[0] <= maxs[0]
 972                                  && ent->maxs[1] >= mins[1]
 973                                  && ent->mins[1] <= maxs[1]
 974                                  && ent->maxs[2] >= mins[2]
 975                                  && ent->mins[2] <= maxs[2]*/)
 976                                 {
 977                                         Matrix4x4_Transform(&ent->inversematrix, rd->origin, relativelightorigin);
 978                                         Matrix4x4_Transform(&ent->inversematrix, r_origin, relativeeyeorigin);
 979                                         ent->model->DrawLight(ent, relativelightorigin, relativeeyeorigin, rd->cullradius, LIGHTOFFSET, rd->subtract, rd->light);
 980                                 }
 981                         }
 982                 }
 983         }
 984
 985         R_Shadow_Stage_End();
 986 }
 987
 988 static void R_SetFrustum (void)
 989 {
 990         int i;
 991
 992         // LordHavoc: note to all quake engine coders, the special case for 90
 993         // degrees assumed a square view (wrong), so I removed it, Quake2 has it
 994         // disabled as well.
 995         // rotate VPN right by FOV_X/2 degrees
 996         RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_refdef.fov_x / 2 ) );
 997         // rotate VPN left by FOV_X/2 degrees
 998         RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_refdef.fov_x / 2 );
 999         // rotate VPN up by FOV_X/2 degrees
1000         RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_refdef.fov_y / 2 );
1001         // rotate VPN down by FOV_X/2 degrees
1002         RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_refdef.fov_y / 2 ) );
1003
1004         for (i = 0;i < 4;i++)
1005         {
1006                 frustum[i].type = PLANE_ANYZ;
1007                 frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
1008                 PlaneClassify(&frustum[i]);
1009         }
1010 }
1011
1012 /*
1013 ===============
1014 R_SetupFrame
1015 ===============
1016 */
1017 static void R_SetupFrame (void)
1018 {
1019 // don't allow cheats in multiplayer
1020         if (cl.maxclients > 1)
1021         {
1022                 if (r_fullbright.integer != 0)
1023                         Cvar_Set ("r_fullbright", "0");
1024                 if (r_ambient.value != 0)
1025                         Cvar_Set ("r_ambient", "0");
1026         }
1027
1028         r_framecount++;
1029
1030 // build the transformation matrix for the given view angles
1031         VectorCopy (r_refdef.vieworg, r_origin);
1032
1033         AngleVectors (r_refdef.viewangles, vpn, vright, vup);
1034
1035         R_AnimateLight ();
1036 }
1037
1038
1039 static void R_BlendView(void)
1040 {
1041         rmeshstate_t m;
1042         float r;
1043
1044         if (r_refdef.viewblend[3] < 0.01f)
1045                 return;
1046
1047         memset(&m, 0, sizeof(m));
1048         m.blendfunc1 = GL_SRC_ALPHA;
1049         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1050         m.depthdisable = true; // magic
1051         R_Mesh_Matrix(&r_identitymatrix);
1052         R_Mesh_State(&m);
1053
1054         r = 64000;
1055         varray_vertex[0] = r_origin[0] + vpn[0] * 1.5 - vright[0] * r - vup[0] * r;
1056         varray_vertex[1] = r_origin[1] + vpn[1] * 1.5 - vright[1] * r - vup[1] * r;
1057         varray_vertex[2] = r_origin[2] + vpn[2] * 1.5 - vright[2] * r - vup[2] * r;
1058         r *= 3;
1059         varray_vertex[4] = varray_vertex[0] + vup[0] * r;
1060         varray_vertex[5] = varray_vertex[1] + vup[1] * r;
1061         varray_vertex[6] = varray_vertex[2] + vup[2] * r;
1062         varray_vertex[8] = varray_vertex[0] + vright[0] * r;
1063         varray_vertex[9] = varray_vertex[1] + vright[1] * r;
1064         varray_vertex[10] = varray_vertex[2] + vright[2] * r;
1065         GL_Color(r_refdef.viewblend[0], r_refdef.viewblend[1], r_refdef.viewblend[2], r_refdef.viewblend[3]);
1066         R_Mesh_Draw(3, 1, polygonelements);
1067 }
1068
1069 /*
1070 ================
1071 R_RenderView
1072
1073 r_refdef must be set before the first call
1074 ================
1075 */
1076 void R_RenderView (void)
1077 {
1078         entity_render_t *world;
1079         if (!r_refdef.entities/* || !cl.worldmodel*/)
1080                 return; //Host_Error ("R_RenderView: NULL worldmodel");
1081
1082         world = &cl_entities[0].render;
1083
1084         // FIXME: move to client
1085         R_MoveExplosions();
1086         R_TimeReport("mexplosion");
1087
1088         R_Textures_Frame();
1089         R_SetupFrame();
1090         R_SetFrustum();
1091         R_SetupFog();
1092         R_SkyStartFrame();
1093         R_BuildLightList();
1094         R_TimeReport("setup");
1095
1096         R_FarClip_Start(r_origin, vpn, 768.0f);
1097         R_MarkEntities();
1098         r_farclip = R_FarClip_Finish() + 16384.0f;//256.0f;
1099         R_TimeReport("markentity");
1100
1101         GL_SetupView_ViewPort(r_refdef.x, r_refdef.y, r_refdef.width, r_refdef.height);
1102         //GL_SetupView_Mode_Perspective(r_refdef.fov_x, r_refdef.fov_y, 1.0f, r_farclip);
1103         GL_SetupView_Mode_PerspectiveInfiniteFarClip(r_refdef.fov_x, r_refdef.fov_y, 1.0f);
1104         GL_SetupView_Orientation_FromEntity (r_refdef.vieworg, r_refdef.viewangles);
1105         qglDepthFunc(GL_LEQUAL);
1106
1107         R_Mesh_Start();
1108         R_MeshQueue_BeginScene();
1109
1110         if (r_shadows.integer == 3)
1111         {
1112                 if (!gl_texturecubemap)
1113                 {
1114                         Con_Printf("Cubemap texture support not detected, turning off r_shadows 3\n");
1115                         Cvar_SetValueQuick(&r_shadows, 0);
1116                 }
1117                 else if (!gl_dot3arb)
1118                 {
1119                         Con_Printf("Bumpmapping support not detected, turning off r_shadows 3\n");
1120                         Cvar_SetValueQuick(&r_shadows, 0);
1121                 }
1122                 else if (!gl_stencil)
1123                 {
1124                         Con_Printf("Stencil not enabled, turning off r_shadows 3, please type vid_stencil 1;vid_restart and try again\n");
1125                         Cvar_SetValueQuick(&r_shadows, 0);
1126                 }
1127                 else if (!gl_combine.integer)
1128                 {
1129                         Con_Printf("Combine disabled, please turn on gl_combine, turning off r_shadows 3\n");
1130                         Cvar_SetValueQuick(&r_shadows, 0);
1131                 }
1132         }
1133
1134         if (R_DrawBrushModelsSky())
1135                 R_TimeReport("bmodelsky");
1136
1137         // must occur early because it can draw sky
1138         R_DrawWorld(world, r_shadows.integer == 3);
1139         R_TimeReport("world");
1140
1141         // don't let sound skip if going slow
1142         if (!intimerefresh && !r_speeds.integer)
1143                 S_ExtraUpdate ();
1144
1145         R_DrawModels(r_shadows.integer == 3);
1146         R_TimeReport("models");
1147
1148         if (r_shadows.integer == 1)
1149         {
1150                 R_DrawFakeShadows();
1151                 R_TimeReport("fakeshadows");
1152         }
1153
1154         if (r_shadows.integer == 3)
1155                 R_ShadowVolumeLighting();
1156
1157         R_DrawParticles();
1158         R_TimeReport("particles");
1159
1160         R_DrawExplosions();
1161         R_TimeReport("explosions");
1162
1163         R_MeshQueue_RenderTransparent();
1164         R_TimeReport("drawtrans");
1165
1166         R_DrawCoronas();
1167         R_TimeReport("coronas");
1168
1169         R_DrawWorldCrosshair();
1170         R_TimeReport("crosshair");
1171
1172         R_BlendView();
1173         R_TimeReport("blendview");
1174
1175         R_MeshQueue_Render();
1176         R_MeshQueue_EndScene();
1177         if (r_shadows.integer == 2)
1178         {
1179                 R_DrawShadowVolumes();
1180                 R_TimeReport("shadowvolumes");
1181         }
1182         R_Mesh_Finish();
1183         R_TimeReport("meshfinish");
1184 }
1185
1186 /*
1187 void R_DrawBBoxMesh(vec3_t mins, vec3_t maxs, float cr, float cg, float cb, float ca)
1188 {
1189         int i;
1190         float *v, *c, f1, f2, diff[3];
1191         rmeshstate_t m;
1192         m.blendfunc1 = GL_SRC_ALPHA;
1193         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1194         R_Mesh_Matrix(&r_identitymatrix);
1195         R_Mesh_State(&m);
1196
1197         varray_vertex[ 0] = mins[0];varray_vertex[ 1] = mins[1];varray_vertex[ 2] = mins[2];
1198         varray_vertex[ 4] = maxs[0];varray_vertex[ 5] = mins[1];varray_vertex[ 6] = mins[2];
1199         varray_vertex[ 8] = mins[0];varray_vertex[ 9] = maxs[1];varray_vertex[10] = mins[2];
1200         varray_vertex[12] = maxs[0];varray_vertex[13] = maxs[1];varray_vertex[14] = mins[2];
1201         varray_vertex[16] = mins[0];varray_vertex[17] = mins[1];varray_vertex[18] = maxs[2];
1202         varray_vertex[20] = maxs[0];varray_vertex[21] = mins[1];varray_vertex[22] = maxs[2];
1203         varray_vertex[24] = mins[0];varray_vertex[25] = maxs[1];varray_vertex[26] = maxs[2];
1204         varray_vertex[28] = maxs[0];varray_vertex[29] = maxs[1];varray_vertex[30] = maxs[2];
1205         R_FillColors(varray_color, 8, cr * r_colorscale, cg * r_colorscale, cb * r_colorscale, ca);
1206         if (fogenabled)
1207         {
1208                 for (i = 0, v = varray_vertex, c = varray_color;i < 8;i++, v += 4, c += 4)
1209                 {
1210                         VectorSubtract(v, r_origin, diff);
1211                         f2 = exp(fogdensity/DotProduct(diff, diff));
1212                         f1 = 1 - f2;
1213                         f2 *= r_colorscale;
1214                         c[0] = c[0] * f1 + fogcolor[0] * f2;
1215                         c[1] = c[1] * f1 + fogcolor[1] * f2;
1216                         c[2] = c[2] * f1 + fogcolor[2] * f2;
1217                 }
1218         }
1219         GL_UseColorArray();
1220         R_Mesh_Draw(8, 12);
1221 }
1222 */
1223
1224 void R_DrawNoModelCallback(const void *calldata1, int calldata2)
1225 {
1226         const entity_render_t *ent = calldata1;
1227         int i, element[24];
1228         float f1, f2, *c, diff[3];
1229         rmeshstate_t m;
1230         memset(&m, 0, sizeof(m));
1231         if (ent->flags & EF_ADDITIVE)
1232         {
1233                 m.blendfunc1 = GL_SRC_ALPHA;
1234                 m.blendfunc2 = GL_ONE;
1235         }
1236         else if (ent->alpha < 1)
1237         {
1238                 m.blendfunc1 = GL_SRC_ALPHA;
1239                 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1240         }
1241         else
1242         {
1243                 m.blendfunc1 = GL_ONE;
1244                 m.blendfunc2 = GL_ZERO;
1245         }
1246         R_Mesh_Matrix(&ent->matrix);
1247         R_Mesh_State(&m);
1248
1249         element[ 0] = 5;element[ 1] = 2;element[ 2] = 0;
1250         element[ 3] = 5;element[ 4] = 1;element[ 5] = 2;
1251         element[ 6] = 5;element[ 7] = 0;element[ 8] = 3;
1252         element[ 9] = 5;element[10] = 3;element[11] = 1;
1253         element[12] = 0;element[13] = 2;element[14] = 4;
1254         element[15] = 2;element[16] = 1;element[17] = 4;
1255         element[18] = 3;element[19] = 0;element[20] = 4;
1256         element[21] = 1;element[22] = 3;element[23] = 4;
1257         varray_vertex[ 0] = -16;varray_vertex[ 1] =   0;varray_vertex[ 2] =   0;
1258         varray_vertex[ 4] =  16;varray_vertex[ 5] =   0;varray_vertex[ 6] =   0;
1259         varray_vertex[ 8] =   0;varray_vertex[ 9] = -16;varray_vertex[10] =   0;
1260         varray_vertex[12] =   0;varray_vertex[13] =  16;varray_vertex[14] =   0;
1261         varray_vertex[16] =   0;varray_vertex[17] =   0;varray_vertex[18] = -16;
1262         varray_vertex[20] =   0;varray_vertex[21] =   0;varray_vertex[22] =  16;
1263         varray_color[ 0] = 0.00f * r_colorscale;varray_color[ 1] = 0.00f * r_colorscale;varray_color[ 2] = 0.50f * r_colorscale;varray_color[ 3] = ent->alpha;
1264         varray_color[ 4] = 0.00f * r_colorscale;varray_color[ 5] = 0.00f * r_colorscale;varray_color[ 6] = 0.50f * r_colorscale;varray_color[ 7] = ent->alpha;
1265         varray_color[ 8] = 0.00f * r_colorscale;varray_color[ 9] = 0.50f * r_colorscale;varray_color[10] = 0.00f * r_colorscale;varray_color[11] = ent->alpha;
1266         varray_color[12] = 0.00f * r_colorscale;varray_color[13] = 0.50f * r_colorscale;varray_color[14] = 0.00f * r_colorscale;varray_color[15] = ent->alpha;
1267         varray_color[16] = 0.50f * r_colorscale;varray_color[17] = 0.00f * r_colorscale;varray_color[18] = 0.00f * r_colorscale;varray_color[19] = ent->alpha;
1268         varray_color[20] = 0.50f * r_colorscale;varray_color[21] = 0.00f * r_colorscale;varray_color[22] = 0.00f * r_colorscale;varray_color[23] = ent->alpha;
1269         if (fogenabled)
1270         {
1271                 VectorSubtract(ent->origin, r_origin, diff);
1272                 f2 = exp(fogdensity/DotProduct(diff, diff));
1273                 f1 = 1 - f2;
1274                 for (i = 0, c = varray_color;i < 6;i++, c += 4)
1275                 {
1276                         c[0] = (c[0] * f1 + fogcolor[0] * f2) * r_colorscale;
1277                         c[1] = (c[1] * f1 + fogcolor[1] * f2) * r_colorscale;
1278                         c[2] = (c[2] * f1 + fogcolor[2] * f2) * r_colorscale;
1279                 }
1280         }
1281         else
1282         {
1283                 for (i = 0, c = varray_color;i < 6;i++, c += 4)
1284                 {
1285                         c[0] *= r_colorscale;
1286                         c[1] *= r_colorscale;
1287                         c[2] *= r_colorscale;
1288                 }
1289         }
1290         GL_UseColorArray();
1291         R_Mesh_Draw(6, 8, element);
1292 }
1293
1294 void R_DrawNoModel(entity_render_t *ent)
1295 {
1296         //if ((ent->effects & EF_ADDITIVE) || (ent->alpha < 1))
1297                 R_MeshQueue_AddTransparent(ent->origin, R_DrawNoModelCallback, ent, 0);
1298         //else
1299         //      R_DrawNoModelCallback(ent, 0);
1300 }
1301
1302 void R_CalcBeamVerts (float *vert, vec3_t org1, vec3_t org2, float width)
1303 {
1304         vec3_t right1, right2, diff, normal;
1305
1306         VectorSubtract (org2, org1, normal);
1307         VectorNormalizeFast (normal);
1308
1309         // calculate 'right' vector for start
1310         VectorSubtract (r_origin, org1, diff);
1311         VectorNormalizeFast (diff);
1312         CrossProduct (normal, diff, right1);
1313
1314         // calculate 'right' vector for end
1315         VectorSubtract (r_origin, org2, diff);
1316         VectorNormalizeFast (diff);
1317         CrossProduct (normal, diff, right2);
1318
1319         vert[ 0] = org1[0] + width * right1[0];
1320         vert[ 1] = org1[1] + width * right1[1];
1321         vert[ 2] = org1[2] + width * right1[2];
1322         vert[ 4] = org1[0] - width * right1[0];
1323         vert[ 5] = org1[1] - width * right1[1];
1324         vert[ 6] = org1[2] - width * right1[2];
1325         vert[ 8] = org2[0] - width * right2[0];
1326         vert[ 9] = org2[1] - width * right2[1];
1327         vert[10] = org2[2] - width * right2[2];
1328         vert[12] = org2[0] + width * right2[0];
1329         vert[13] = org2[1] + width * right2[1];
1330         vert[14] = org2[2] + width * right2[2];
1331 }