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", "1"};
  56 cvar_t r_speeds = {0, "r_speeds","0"};
  57 cvar_t r_fullbright = {0, "r_fullbright","0"};
  58 cvar_t r_wateralpha = {CVAR_SAVE, "r_wateralpha","1"};
  59 cvar_t r_dynamic = {CVAR_SAVE, "r_dynamic","1"};
  60 cvar_t r_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 (void)
 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 (ent->model->Draw)
 542                                         ent->model->Draw(ent);
 543                         }
 544                         else
 545                                 R_DrawNoModel(ent);
 546                 }
 547         }
 548 }
 549
 550 void R_DrawFakeShadows (void)
 551 {
 552         int i;
 553         entity_render_t *ent;
 554
 555         ent = &cl_entities[0].render;
 556         if (ent->model && ent->model->DrawFakeShadow)
 557                 ent->model->DrawFakeShadow(ent);
 558
 559         if (!r_drawentities.integer)
 560                 return;
 561         for (i = 0;i < r_refdef.numentities;i++)
 562         {
 563                 ent = r_refdef.entities[i];
 564                 if (ent->model && ent->model->DrawFakeShadow)
 565                         ent->model->DrawFakeShadow(ent);
 566         }
 567 }
 568
 569 #include "r_shadow.h"
 570
 571 void R_TestAndDrawShadowVolume(entity_render_t *ent, vec3_t lightorigin, float lightradius, int visiblevolume)
 572 {
 573         int i;
 574         vec3_t p, p2, temp, relativelightorigin;
 575         float dist, projectdistance;
 576         // rough checks
 577         if (ent->model && ent->model->DrawShadowVolume)
 578         {
 579                 temp[0] = bound(ent->mins[0], lightorigin[0], ent->maxs[0]) - lightorigin[0];
 580                 temp[1] = bound(ent->mins[1], lightorigin[1], ent->maxs[1]) - lightorigin[1];
 581                 temp[2] = bound(ent->mins[2], lightorigin[2], ent->maxs[2]) - lightorigin[2];
 582                 dist = DotProduct(temp, temp);
 583                 if (dist < lightradius * lightradius)
 584                 {
 585                         projectdistance = lightradius - sqrt(dist);
 586                         {
 587 #if 0
 588                         int d0, d1, d2, d3;
 589                         // calculate projected bounding box and decide if it is on-screen
 590                         d0 = false;
 591                         d1 = false;
 592                         d2 = false;
 593                         d3 = false;
 594                         for (i = 0;i < 8;i++)
 595                         {
 596                                 p[0] = i & 1 ? ent->maxs[0] : ent->mins[0];
 597                                 p[1] = i & 2 ? ent->maxs[1] : ent->mins[1];
 598                                 p[2] = i & 4 ? ent->maxs[2] : ent->mins[2];
 599                                 VectorSubtract(p, lightorigin, temp);
 600                                 dist = projectdistance / sqrt(DotProduct(temp, temp));
 601                                 VectorMA(p, dist, temp, p2);
 602                                 if (!d0 && (DotProduct(p , frustum[0].normal) < frustum[0].dist || DotProduct(p2, frustum[0].normal) < frustum[0].dist))
 603                                         d0 = true;
 604                                 if (!d1 && (DotProduct(p , frustum[1].normal) < frustum[1].dist || DotProduct(p2, frustum[1].normal) < frustum[1].dist))
 605                                         d1 = true;
 606                                 if (!d2 && (DotProduct(p , frustum[2].normal) < frustum[2].dist || DotProduct(p2, frustum[2].normal) < frustum[2].dist))
 607                                         d2 = true;
 608                                 if (!d3 && (DotProduct(p , frustum[3].normal) < frustum[3].dist || DotProduct(p2, frustum[3].normal) < frustum[3].dist))
 609                                         d3 = true;
 610                         }
 611                         if (d0 && d1 && d2 && d3)
 612 #else
 613                         vec3_t mins, maxs;
 614                         // calculate projected bounding box and decide if it is on-screen
 615                         VectorCopy(ent->mins, mins);
 616                         VectorCopy(ent->maxs, maxs);
 617                         for (i = 0;i < 8;i++)
 618                         {
 619                                 p[0] = i & 1 ? ent->maxs[0] : ent->mins[0];
 620                                 p[1] = i & 2 ? ent->maxs[1] : ent->mins[1];
 621                                 p[2] = i & 4 ? ent->maxs[2] : ent->mins[2];
 622                                 VectorSubtract(p, lightorigin, temp);
 623                                 dist = projectdistance / sqrt(DotProduct(temp, temp));
 624                                 VectorMA(p, dist, temp, p2);
 625                                 if (mins[0] > p2[0]) mins[0] = p2[0];if (maxs[0] < p2[0]) maxs[0] = p2[0];
 626                                 if (mins[1] > p2[1]) mins[1] = p2[1];if (maxs[1] < p2[1]) maxs[1] = p2[1];
 627                                 if (mins[2] > p2[2]) mins[2] = p2[2];if (maxs[2] < p2[2]) maxs[2] = p2[2];
 628                         }
 629                         if (R_NotCulledBox(mins, maxs))
 630 #endif
 631                         {
 632                                 Matrix4x4_Transform(&ent->inversematrix, lightorigin, relativelightorigin);
 633                                 R_Mesh_Matrix(&ent->matrix);
 634                                 ent->model->DrawShadowVolume (ent, relativelightorigin, lightradius, visiblevolume);
 635                         }
 636                         }
 637                 }
 638         }
 639 }
 640
 641 void R_DrawWorldLightShadowVolume(mlight_t *sl, int visiblevolume)
 642 {
 643         shadowmesh_t *mesh;
 644         R_Mesh_Matrix(&cl_entities[0].render.matrix);
 645         for (mesh = sl->shadowvolume;mesh;mesh = mesh->next)
 646         {
 647                 memcpy(varray_vertex, mesh->verts, mesh->numverts * sizeof(float[4]));
 648                 R_Shadow_RenderVolume(mesh->numverts, mesh->numtriangles, mesh->elements, visiblevolume);
 649         }
 650 }
 651
 652 void R_DrawShadowVolumes (void)
 653 {
 654         int i, lnum;
 655         entity_render_t *ent;
 656         vec3_t mins, maxs;//, relativelightorigin;
 657         mlight_t *sl;
 658         rdlight_t *rd;
 659         rmeshstate_t m;
 660
 661         for (lnum = 0, sl = cl.worldmodel->lights;lnum < cl.worldmodel->numlights;lnum++, sl++)
 662         {
 663                 if (d_lightstylevalue[sl->style] <= 0)
 664                         continue;
 665                 /*
 666                 mins[0] = sl->origin[0] - sl->cullradius;
 667                 maxs[0] = sl->origin[0] + sl->cullradius;
 668                 mins[1] = sl->origin[1] - sl->cullradius;
 669                 maxs[1] = sl->origin[1] + sl->cullradius;
 670                 mins[2] = sl->origin[2] - sl->cullradius;
 671                 maxs[2] = sl->origin[2] + sl->cullradius;
 672                 if (R_CullBox(mins, maxs))
 673                         continue;
 674                 */
 675                 if (R_CullBox(sl->mins, sl->maxs))
 676                         continue;
 677                 memset(&m, 0, sizeof(m));
 678                 m.blendfunc1 = GL_ONE;
 679                 m.blendfunc2 = GL_ONE;
 680                 R_Mesh_State(&m);
 681                 GL_Color(0.0 * r_colorscale, 0.0125 * r_colorscale, 0.1 * r_colorscale, 1);
 682                 if (sl->shadowvolume && r_staticworldlights.integer)
 683                         R_DrawWorldLightShadowVolume(sl, true);
 684                 else
 685                 {
 686                         ent = &cl_entities[0].render;
 687                         R_TestAndDrawShadowVolume(ent, sl->origin, sl->cullradius, true);
 688                 }
 689                 /*
 690                 ent = &cl_entities[0].render;
 691                 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])
 692                 {
 693                         Matrix4x4_Transform(&ent->inversematrix, sl->origin, relativelightorigin);
 694                         R_Mesh_Matrix(&ent->matrix);
 695                         ent->model->DrawShadowVolume (ent, relativelightorigin, sl->cullradius, true);
 696                 }
 697                 */
 698                 if (r_drawentities.integer)
 699                 {
 700                         for (i = 0;i < r_refdef.numentities;i++)
 701                         {
 702                                 ent = r_refdef.entities[i];
 703                                 /*
 704                                 if (ent->mins[0] <= sl->maxs[0]
 705                                  && ent->maxs[0] >= sl->mins[0]
 706                                  && ent->mins[1] <= sl->maxs[1]
 707                                  && ent->maxs[1] >= sl->mins[1]
 708                                  && ent->mins[2] <= sl->maxs[2]
 709                                  && ent->maxs[2] >= sl->mins[2])
 710                                 */
 711                                         R_TestAndDrawShadowVolume(ent, sl->origin, sl->cullradius, true);
 712                                 /*
 713                                 ent = r_refdef.entities[i];
 714                                 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])
 715                                 {
 716                                         Matrix4x4_Transform(&ent->inversematrix, sl->origin, relativelightorigin);
 717                                         R_Mesh_Matrix(&ent->matrix);
 718                                         ent->model->DrawShadowVolume (ent, relativelightorigin, sl->cullradius, true);
 719                                 }
 720                                 */
 721                         }
 722                 }
 723         }
 724
 725         for (lnum = 0, rd = r_dlight;lnum < r_numdlights;lnum++, rd++)
 726         {
 727                 mins[0] = rd->origin[0] - rd->cullradius;
 728                 maxs[0] = rd->origin[0] + rd->cullradius;
 729                 mins[1] = rd->origin[1] - rd->cullradius;
 730                 maxs[1] = rd->origin[1] + rd->cullradius;
 731                 mins[2] = rd->origin[2] - rd->cullradius;
 732                 maxs[2] = rd->origin[2] + rd->cullradius;
 733                 if (R_CullBox(mins, maxs))
 734                         continue;
 735                 memset(&m, 0, sizeof(m));
 736                 m.blendfunc1 = GL_ONE;
 737                 m.blendfunc2 = GL_ONE;
 738                 R_Mesh_State(&m);
 739                 GL_Color(0.1 * r_colorscale, 0.0125 * r_colorscale, 0.0 * r_colorscale, 1);
 740                 ent = &cl_entities[0].render;
 741                 if (ent != rd->ent)
 742                         R_TestAndDrawShadowVolume(ent, rd->origin, rd->cullradius, true);
 743                 /*
 744                 ent = &cl_entities[0].render;
 745                 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])
 746                 {
 747                         Matrix4x4_Transform(&ent->inversematrix, rd->origin, relativelightorigin);
 748                         R_Mesh_Matrix(&ent->matrix);
 749                         ent->model->DrawShadowVolume (ent, relativelightorigin, rd->cullradius, true);
 750                 }
 751                 */
 752                 if (r_drawentities.integer)
 753                 {
 754                         for (i = 0;i < r_refdef.numentities;i++)
 755                         {
 756                                 ent = r_refdef.entities[i];
 757                                 if (ent != rd->ent)
 758                                         R_TestAndDrawShadowVolume(ent, rd->origin, rd->cullradius, true);
 759                                 /*
 760                                 ent = r_refdef.entities[i];
 761                                 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])
 762                                 {
 763                                         Matrix4x4_Transform(&ent->inversematrix, rd->origin, relativelightorigin);
 764                                         R_Mesh_Matrix(&ent->matrix);
 765                                         ent->model->DrawShadowVolume (ent, relativelightorigin, rd->cullradius, true);
 766                                 }
 767                                 */
 768                         }
 769                 }
 770         }
 771 }
 772
 773 #define SHADOWSPHERE_SEGMENTS 16
 774
 775 shadowmesh_t *shadowsphere;
 776 void R_CreateShadowSphere(void)
 777 {
 778         int i, j;
 779         vec3_t angles, angles2, angles3, angles4;
 780         float verts[12];
 781         shadowsphere = Mod_ShadowMesh_Begin(zonemempool);
 782         for (i = 0;i < SHADOWSPHERE_SEGMENTS;i++)
 783         {
 784                 for (j = 0;j < SHADOWSPHERE_SEGMENTS;j++)
 785                 {
 786                         angles[0] = i * 360.0f / SHADOWSPHERE_SEGMENTS;
 787                         angles[1] = j * 360.0f / SHADOWSPHERE_SEGMENTS;
 788                         angles[2] = 0;
 789                         VectorCopy(angles, angles2);
 790                         VectorCopy(angles, angles3);
 791                         VectorCopy(angles, angles4);
 792                         angles2[1] += 360.0f / SHADOWSPHERE_SEGMENTS;
 793                         angles3[0] += 360.0f / SHADOWSPHERE_SEGMENTS;
 794                         angles3[1] += 360.0f / SHADOWSPHERE_SEGMENTS;
 795                         angles4[0] += 360.0f / SHADOWSPHERE_SEGMENTS;
 796                         AngleVectorsFLU(angles, verts, NULL, NULL);
 797                         AngleVectorsFLU(angles2, verts + 9, NULL, NULL);
 798                         AngleVectorsFLU(angles3, verts + 6, NULL, NULL);
 799                         AngleVectorsFLU(angles4, verts + 3, NULL, NULL);
 800                         VectorScale(&verts[0], 64.0f, &verts[0]);
 801                         VectorScale(&verts[3], 64.0f, &verts[3]);
 802                         VectorScale(&verts[6], 64.0f, &verts[6]);
 803                         VectorScale(&verts[9], 64.0f, &verts[9]);
 804                         Mod_ShadowMesh_AddPolygon(zonemempool, shadowsphere, 4, verts);
 805                         AngleVectorsFLU(angles, verts, NULL, NULL);
 806                         AngleVectorsFLU(angles2, verts + 3, NULL, NULL);
 807                         AngleVectorsFLU(angles3, verts + 6, NULL, NULL);
 808                         AngleVectorsFLU(angles4, verts + 9, NULL, NULL);
 809                         VectorScale(&verts[0], 128.0f, &verts[0]);
 810                         VectorScale(&verts[3], 128.0f, &verts[3]);
 811                         VectorScale(&verts[6], 128.0f, &verts[6]);
 812                         VectorScale(&verts[9], 128.0f, &verts[9]);
 813                         Mod_ShadowMesh_AddPolygon(zonemempool, shadowsphere, 4, verts);
 814                 }
 815         }
 816         shadowsphere = Mod_ShadowMesh_Finish(zonemempool, shadowsphere);
 817 }
 818
 819
 820 void R_DrawShadowSphere(vec3_t origin, float radius, int visiblevolume)
 821 {
 822         int i;
 823         float *v;
 824         shadowmesh_t *mesh;
 825         //matrix4x4_t matrix;
 826         if (!shadowsphere)
 827                 R_CreateShadowSphere();
 828         //Matrix4x4_CreateTranslate(&matrix, origin[0], origin[1], origin[2]);
 829         //Matrix4x4_ConcatScale(&matrix, radius);
 830         //R_Mesh_Matrix(&matrix);
 831         R_Mesh_Matrix(&r_identitymatrix);
 832         for (mesh = shadowsphere;mesh;mesh = mesh->next)
 833         {
 834                 memcpy(varray_vertex, mesh->verts, mesh->numverts * sizeof(float[4]));
 835                 for (i = 0, v = varray_vertex;i < mesh->numverts;i++, v += 4)
 836                         VectorMA(origin, radius, v, v);
 837                 R_Shadow_RenderVolume(mesh->numverts, mesh->numtriangles, mesh->elements, visiblevolume);
 838         }
 839 }
 840
 841 void R_ShadowVolumeLighting (void)
 842 {
 843         int i;
 844         entity_render_t *ent;
 845         int lnum;
 846         float f;
 847         vec3_t mins, maxs, relativelightorigin, lightcolor;
 848         mlight_t *sl;
 849         rdlight_t *rd;
 850
 851         R_Shadow_Stage_Depth();
 852         ent = &cl_entities[0].render;
 853         if (ent->model && ent->model->DrawDepth)
 854         {
 855                 R_Mesh_Matrix(&ent->matrix);
 856                 ent->model->DrawDepth(ent);
 857         }
 858         if (r_drawentities.integer)
 859         {
 860                 for (i = 0;i < r_refdef.numentities;i++)
 861                 {
 862                         ent = r_refdef.entities[i];
 863                         if (ent->visframe == r_framecount && ent->model && ent->model->DrawDepth)
 864                         {
 865                                 R_Mesh_Matrix(&ent->matrix);
 866                                 ent->model->DrawDepth(ent);
 867                         }
 868                 }
 869         }
 870
 871         for (lnum = 0, sl = cl.worldmodel->lights;lnum < cl.worldmodel->numlights;lnum++, sl++)
 872         {
 873                 if (d_lightstylevalue[sl->style] <= 0)
 874                         continue;
 875                 VectorCopy(sl->mins, mins);
 876                 VectorCopy(sl->maxs, maxs);
 877                 /*
 878                 mins[0] = sl->origin[0] - sl->cullradius;
 879                 maxs[0] = sl->origin[0] + sl->cullradius;
 880                 mins[1] = sl->origin[1] - sl->cullradius;
 881                 maxs[1] = sl->origin[1] + sl->cullradius;
 882                 mins[2] = sl->origin[2] - sl->cullradius;
 883                 maxs[2] = sl->origin[2] + sl->cullradius;
 884                 if (R_CullBox(mins, maxs))
 885                         continue;
 886                 */
 887                 if (R_CullBox(mins, maxs))
 888                         continue;
 889
 890                 f = d_lightstylevalue[sl->style] * (1.0f / 32768.0f);
 891                 VectorScale(sl->light, f, lightcolor);
 892
 893                 R_Shadow_Stage_ShadowVolumes();
 894                 R_DrawShadowSphere(sl->origin, 1.0f/*sl->cullradius - 16*/, false);
 895                 if (sl->shadowvolume && r_staticworldlights.integer)
 896                         R_DrawWorldLightShadowVolume(sl, false);
 897                 else
 898                         R_TestAndDrawShadowVolume(&cl_entities[0].render, sl->origin, sl->cullradius, false);
 899                 if (r_drawentities.integer)
 900                 {
 901                         for (i = 0;i < r_refdef.numentities;i++)
 902                         {
 903                                 ent = r_refdef.entities[i];
 904                                 if (ent->maxs[0] >= mins[0]
 905                                  && ent->mins[0] <= maxs[0]
 906                                  && ent->maxs[1] >= mins[1]
 907                                  && ent->mins[1] <= maxs[1]
 908                                  && ent->maxs[2] >= mins[2]
 909                                  && ent->mins[2] <= maxs[2])
 910                                         R_TestAndDrawShadowVolume(r_refdef.entities[i], sl->origin, sl->cullradius, false);
 911                         }
 912                 }
 913
 914                 R_Shadow_Stage_Light();
 915                 ent = &cl_entities[0].render;
 916                 if (ent->model && ent->model->DrawLight)
 917                 {
 918                         Matrix4x4_Transform(&ent->inversematrix, sl->origin, relativelightorigin);
 919                         R_Mesh_Matrix(&ent->matrix);
 920                         ent->model->DrawLight(ent, relativelightorigin, sl->cullradius, sl->distbias, sl->subtract, lightcolor);
 921                 }
 922                 if (r_drawentities.integer)
 923                 {
 924                         for (i = 0;i < r_refdef.numentities;i++)
 925                         {
 926                                 ent = r_refdef.entities[i];
 927                                 if (ent->visframe == r_framecount && ent->model && ent->model->DrawLight
 928                                  && ent->maxs[0] >= mins[0]
 929                                  && ent->mins[0] <= maxs[0]
 930                                  && ent->maxs[1] >= mins[1]
 931                                  && ent->mins[1] <= maxs[1]
 932                                  && ent->maxs[2] >= mins[2]
 933                                  && ent->mins[2] <= maxs[2])
 934                                 {
 935                                         Matrix4x4_Transform(&ent->inversematrix, sl->origin, relativelightorigin);
 936                                         R_Mesh_Matrix(&ent->matrix);
 937                                         ent->model->DrawLight(ent, relativelightorigin, sl->cullradius, sl->distbias, sl->subtract, lightcolor);
 938                                 }
 939                         }
 940                 }
 941         }
 942         for (lnum = 0, rd = r_dlight;lnum < r_numdlights;lnum++, rd++)
 943         {
 944                 mins[0] = rd->origin[0] - rd->cullradius;
 945                 maxs[0] = rd->origin[0] + rd->cullradius;
 946                 mins[1] = rd->origin[1] - rd->cullradius;
 947                 maxs[1] = rd->origin[1] + rd->cullradius;
 948                 mins[2] = rd->origin[2] - rd->cullradius;
 949                 maxs[2] = rd->origin[2] + rd->cullradius;
 950                 if (R_CullBox(mins, maxs))
 951                         continue;
 952
 953                 R_Shadow_Stage_ShadowVolumes();
 954                 R_TestAndDrawShadowVolume(&cl_entities[0].render, rd->origin, rd->cullradius, false);
 955                 if (r_drawentities.integer)
 956                 {
 957                         for (i = 0;i < r_refdef.numentities;i++)
 958                         {
 959                                 ent = r_refdef.entities[i];
 960                                 if (ent->maxs[0] >= mins[0]
 961                                  && ent->mins[0] <= maxs[0]
 962                                  && ent->maxs[1] >= mins[1]
 963                                  && ent->mins[1] <= maxs[1]
 964                                  && ent->maxs[2] >= mins[2]
 965                                  && ent->mins[2] <= maxs[2])
 966                                 R_TestAndDrawShadowVolume(ent, rd->origin, rd->cullradius, false);
 967                         }
 968                 }
 969
 970                 R_Shadow_Stage_Light();
 971                 ent = &cl_entities[0].render;
 972                 if (ent->model && ent->model->DrawLight)
 973                 {
 974                         Matrix4x4_Transform(&ent->inversematrix, rd->origin, relativelightorigin);
 975                         R_Mesh_Matrix(&ent->matrix);
 976                         ent->model->DrawLight(ent, relativelightorigin, rd->cullradius, LIGHTOFFSET, rd->subtract, rd->light);
 977                 }
 978                 if (r_drawentities.integer)
 979                 {
 980                         for (i = 0;i < r_refdef.numentities;i++)
 981                         {
 982                                 ent = r_refdef.entities[i];
 983                                 if (ent->visframe == r_framecount && ent->model && ent->model->DrawLight
 984                                  && ent->maxs[0] >= mins[0]
 985                                  && ent->mins[0] <= maxs[0]
 986                                  && ent->maxs[1] >= mins[1]
 987                                  && ent->mins[1] <= maxs[1]
 988                                  && ent->maxs[2] >= mins[2]
 989                                  && ent->mins[2] <= maxs[2])
 990                                 {
 991                                         Matrix4x4_Transform(&ent->inversematrix, rd->origin, relativelightorigin);
 992                                         R_Mesh_Matrix(&ent->matrix);
 993                                         ent->model->DrawLight(ent, relativelightorigin, rd->cullradius, LIGHTOFFSET, rd->subtract, rd->light);
 994                                 }
 995                         }
 996                 }
 997         }
 998
 999         R_Shadow_Stage_Textures();
1000         ent = &cl_entities[0].render;
1001         if (ent->model && ent->model->DrawOntoLight)
1002         {
1003                 R_Mesh_Matrix(&ent->matrix);
1004                 ent->model->DrawOntoLight(ent);
1005         }
1006         if (r_drawentities.integer)
1007         {
1008                 for (i = 0;i < r_refdef.numentities;i++)
1009                 {
1010                         ent = r_refdef.entities[i];
1011                         if (ent->visframe == r_framecount && ent->model && ent->model->DrawOntoLight)
1012                         {
1013                                 R_Mesh_Matrix(&ent->matrix);
1014                                 ent->model->DrawOntoLight(ent);
1015                         }
1016                 }
1017         }
1018
1019         R_Shadow_Stage_End();
1020 }
1021
1022 static void R_SetFrustum (void)
1023 {
1024         int i;
1025
1026         // LordHavoc: note to all quake engine coders, the special case for 90
1027         // degrees assumed a square view (wrong), so I removed it, Quake2 has it
1028         // disabled as well.
1029         // rotate VPN right by FOV_X/2 degrees
1030         RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_refdef.fov_x / 2 ) );
1031         // rotate VPN left by FOV_X/2 degrees
1032         RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_refdef.fov_x / 2 );
1033         // rotate VPN up by FOV_X/2 degrees
1034         RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_refdef.fov_y / 2 );
1035         // rotate VPN down by FOV_X/2 degrees
1036         RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_refdef.fov_y / 2 ) );
1037
1038         for (i = 0;i < 4;i++)
1039         {
1040                 frustum[i].type = PLANE_ANYZ;
1041                 frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
1042                 PlaneClassify(&frustum[i]);
1043         }
1044 }
1045
1046 /*
1047 ===============
1048 R_SetupFrame
1049 ===============
1050 */
1051 static void R_SetupFrame (void)
1052 {
1053 // don't allow cheats in multiplayer
1054         if (cl.maxclients > 1)
1055         {
1056                 if (r_fullbright.integer != 0)
1057                         Cvar_Set ("r_fullbright", "0");
1058                 if (r_ambient.value != 0)
1059                         Cvar_Set ("r_ambient", "0");
1060         }
1061
1062         r_framecount++;
1063
1064 // build the transformation matrix for the given view angles
1065         VectorCopy (r_refdef.vieworg, r_origin);
1066
1067         AngleVectors (r_refdef.viewangles, vpn, vright, vup);
1068
1069         R_AnimateLight ();
1070 }
1071
1072
1073 static void R_BlendView(void)
1074 {
1075         rmeshstate_t m;
1076         float r;
1077
1078         if (r_refdef.viewblend[3] < 0.01f)
1079                 return;
1080
1081         memset(&m, 0, sizeof(m));
1082         m.blendfunc1 = GL_SRC_ALPHA;
1083         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1084         m.depthdisable = true; // magic
1085         R_Mesh_Matrix(&r_identitymatrix);
1086         R_Mesh_State(&m);
1087
1088         r = 64000;
1089         varray_vertex[0] = r_origin[0] + vpn[0] * 1.5 - vright[0] * r - vup[0] * r;
1090         varray_vertex[1] = r_origin[1] + vpn[1] * 1.5 - vright[1] * r - vup[1] * r;
1091         varray_vertex[2] = r_origin[2] + vpn[2] * 1.5 - vright[2] * r - vup[2] * r;
1092         r *= 3;
1093         varray_vertex[4] = varray_vertex[0] + vup[0] * r;
1094         varray_vertex[5] = varray_vertex[1] + vup[1] * r;
1095         varray_vertex[6] = varray_vertex[2] + vup[2] * r;
1096         varray_vertex[8] = varray_vertex[0] + vright[0] * r;
1097         varray_vertex[9] = varray_vertex[1] + vright[1] * r;
1098         varray_vertex[10] = varray_vertex[2] + vright[2] * r;
1099         GL_Color(r_refdef.viewblend[0], r_refdef.viewblend[1], r_refdef.viewblend[2], r_refdef.viewblend[3]);
1100         R_Mesh_Draw(3, 1, polygonelements);
1101 }
1102
1103 /*
1104 ================
1105 R_RenderView
1106
1107 r_refdef must be set before the first call
1108 ================
1109 */
1110 void R_RenderView (void)
1111 {
1112         entity_render_t *world;
1113         if (!r_refdef.entities/* || !cl.worldmodel*/)
1114                 return; //Host_Error ("R_RenderView: NULL worldmodel");
1115
1116         world = &cl_entities[0].render;
1117
1118         // FIXME: move to client
1119         R_MoveExplosions();
1120         R_TimeReport("mexplosion");
1121
1122         R_Textures_Frame();
1123         R_SetupFrame();
1124         R_SetFrustum();
1125         R_SetupFog();
1126         R_SkyStartFrame();
1127         R_BuildLightList();
1128         R_TimeReport("setup");
1129
1130         R_FarClip_Start(r_origin, vpn, 768.0f);
1131         R_MarkEntities();
1132         r_farclip = R_FarClip_Finish() + 16384.0f;//256.0f;
1133         R_TimeReport("markentity");
1134
1135         GL_SetupView_ViewPort(r_refdef.x, r_refdef.y, r_refdef.width, r_refdef.height);
1136         GL_SetupView_Mode_Perspective((double) r_refdef.height / r_refdef.width, r_refdef.fov_x, r_refdef.fov_y, 1.0f, r_farclip);
1137         GL_SetupView_Orientation_FromEntity (r_refdef.vieworg, r_refdef.viewangles);
1138         qglDepthFunc(GL_LEQUAL);
1139
1140         R_Mesh_Start();
1141         R_MeshQueue_BeginScene();
1142
1143         if (r_shadows.integer == 3 && !vid_stencil.integer)
1144         {
1145                 Con_Printf("Stencil not enabled, turning off r_shadows 3\n");
1146                 Cvar_SetValueQuick(&r_shadows, 0);
1147         }
1148
1149         if (R_DrawBrushModelsSky())
1150                 R_TimeReport("bmodelsky");
1151
1152         // must occur early because it can draw sky
1153         R_DrawWorld(world);
1154         R_TimeReport("world");
1155
1156         // don't let sound skip if going slow
1157         if (!intimerefresh && !r_speeds.integer)
1158                 S_ExtraUpdate ();
1159
1160         R_DrawModels();
1161         R_TimeReport("models");
1162
1163         if (r_shadows.integer == 3)
1164                 R_ShadowVolumeLighting();
1165
1166         R_DrawParticles();
1167         R_TimeReport("particles");
1168
1169         R_DrawExplosions();
1170         R_TimeReport("explosions");
1171
1172         R_MeshQueue_RenderTransparent();
1173         R_TimeReport("drawtrans");
1174
1175         R_DrawCoronas();
1176         R_TimeReport("coronas");
1177
1178         R_DrawWorldCrosshair();
1179         R_TimeReport("crosshair");
1180
1181         R_BlendView();
1182         R_TimeReport("blendview");
1183
1184         R_MeshQueue_Render();
1185         R_MeshQueue_EndScene();
1186         if (r_shadows.integer == 1)
1187         {
1188                 R_DrawFakeShadows();
1189                 R_TimeReport("fakeshadows");
1190         }
1191         if (r_shadows.integer == 2)
1192         {
1193                 R_DrawShadowVolumes();
1194                 R_TimeReport("shadowvolumes");
1195         }
1196         R_Mesh_Finish();
1197         R_TimeReport("meshfinish");
1198 }
1199
1200 /*
1201 void R_DrawBBoxMesh(vec3_t mins, vec3_t maxs, float cr, float cg, float cb, float ca)
1202 {
1203         int i;
1204         float *v, *c, f1, f2, diff[3];
1205         rmeshstate_t m;
1206         m.blendfunc1 = GL_SRC_ALPHA;
1207         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1208         R_Mesh_Matrix(&r_identitymatrix);
1209         R_Mesh_State(&m);
1210
1211         varray_vertex[ 0] = mins[0];varray_vertex[ 1] = mins[1];varray_vertex[ 2] = mins[2];
1212         varray_vertex[ 4] = maxs[0];varray_vertex[ 5] = mins[1];varray_vertex[ 6] = mins[2];
1213         varray_vertex[ 8] = mins[0];varray_vertex[ 9] = maxs[1];varray_vertex[10] = mins[2];
1214         varray_vertex[12] = maxs[0];varray_vertex[13] = maxs[1];varray_vertex[14] = mins[2];
1215         varray_vertex[16] = mins[0];varray_vertex[17] = mins[1];varray_vertex[18] = maxs[2];
1216         varray_vertex[20] = maxs[0];varray_vertex[21] = mins[1];varray_vertex[22] = maxs[2];
1217         varray_vertex[24] = mins[0];varray_vertex[25] = maxs[1];varray_vertex[26] = maxs[2];
1218         varray_vertex[28] = maxs[0];varray_vertex[29] = maxs[1];varray_vertex[30] = maxs[2];
1219         R_FillColors(varray_color, 8, cr * r_colorscale, cg * r_colorscale, cb * r_colorscale, ca);
1220         if (fogenabled)
1221         {
1222                 for (i = 0, v = varray_vertex, c = varray_color;i < 8;i++, v += 4, c += 4)
1223                 {
1224                         VectorSubtract(v, r_origin, diff);
1225                         f2 = exp(fogdensity/DotProduct(diff, diff));
1226                         f1 = 1 - f2;
1227                         f2 *= r_colorscale;
1228                         c[0] = c[0] * f1 + fogcolor[0] * f2;
1229                         c[1] = c[1] * f1 + fogcolor[1] * f2;
1230                         c[2] = c[2] * f1 + fogcolor[2] * f2;
1231                 }
1232         }
1233         GL_UseColorArray();
1234         R_Mesh_Draw(8, 12);
1235 }
1236 */
1237
1238 void R_DrawNoModelCallback(const void *calldata1, int calldata2)
1239 {
1240         const entity_render_t *ent = calldata1;
1241         int i, element[24];
1242         float f1, f2, *c, diff[3];
1243         rmeshstate_t m;
1244         memset(&m, 0, sizeof(m));
1245         if (ent->flags & EF_ADDITIVE)
1246         {
1247                 m.blendfunc1 = GL_SRC_ALPHA;
1248                 m.blendfunc2 = GL_ONE;
1249         }
1250         else if (ent->alpha < 1)
1251         {
1252                 m.blendfunc1 = GL_SRC_ALPHA;
1253                 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1254         }
1255         else
1256         {
1257                 m.blendfunc1 = GL_ONE;
1258                 m.blendfunc2 = GL_ZERO;
1259         }
1260         R_Mesh_Matrix(&ent->matrix);
1261         R_Mesh_State(&m);
1262
1263         element[ 0] = 5;element[ 1] = 2;element[ 2] = 0;
1264         element[ 3] = 5;element[ 4] = 1;element[ 5] = 2;
1265         element[ 6] = 5;element[ 7] = 0;element[ 8] = 3;
1266         element[ 9] = 5;element[10] = 3;element[11] = 1;
1267         element[12] = 0;element[13] = 2;element[14] = 4;
1268         element[15] = 2;element[16] = 1;element[17] = 4;
1269         element[18] = 3;element[19] = 0;element[20] = 4;
1270         element[21] = 1;element[22] = 3;element[23] = 4;
1271         varray_vertex[ 0] = -16;varray_vertex[ 1] =   0;varray_vertex[ 2] =   0;
1272         varray_vertex[ 4] =  16;varray_vertex[ 5] =   0;varray_vertex[ 6] =   0;
1273         varray_vertex[ 8] =   0;varray_vertex[ 9] = -16;varray_vertex[10] =   0;
1274         varray_vertex[12] =   0;varray_vertex[13] =  16;varray_vertex[14] =   0;
1275         varray_vertex[16] =   0;varray_vertex[17] =   0;varray_vertex[18] = -16;
1276         varray_vertex[20] =   0;varray_vertex[21] =   0;varray_vertex[22] =  16;
1277         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;
1278         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;
1279         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;
1280         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;
1281         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;
1282         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;
1283         if (fogenabled)
1284         {
1285                 VectorSubtract(ent->origin, r_origin, diff);
1286                 f2 = exp(fogdensity/DotProduct(diff, diff));
1287                 f1 = 1 - f2;
1288                 for (i = 0, c = varray_color;i < 6;i++, c += 4)
1289                 {
1290                         c[0] = (c[0] * f1 + fogcolor[0] * f2) * r_colorscale;
1291                         c[1] = (c[1] * f1 + fogcolor[1] * f2) * r_colorscale;
1292                         c[2] = (c[2] * f1 + fogcolor[2] * f2) * r_colorscale;
1293                 }
1294         }
1295         else
1296         {
1297                 for (i = 0, c = varray_color;i < 6;i++, c += 4)
1298                 {
1299                         c[0] *= r_colorscale;
1300                         c[1] *= r_colorscale;
1301                         c[2] *= r_colorscale;
1302                 }
1303         }
1304         GL_UseColorArray();
1305         R_Mesh_Draw(6, 8, element);
1306 }
1307
1308 void R_DrawNoModel(entity_render_t *ent)
1309 {
1310         //if ((ent->effects & EF_ADDITIVE) || (ent->alpha < 1))
1311                 R_MeshQueue_AddTransparent(ent->origin, R_DrawNoModelCallback, ent, 0);
1312         //else
1313         //      R_DrawNoModelCallback(ent, 0);
1314 }
1315
1316 void R_CalcBeamVerts (float *vert, vec3_t org1, vec3_t org2, float width)
1317 {
1318         vec3_t right1, right2, diff, normal;
1319
1320         VectorSubtract (org2, org1, normal);
1321         VectorNormalizeFast (normal);
1322
1323         // calculate 'right' vector for start
1324         VectorSubtract (r_origin, org1, diff);
1325         VectorNormalizeFast (diff);
1326         CrossProduct (normal, diff, right1);
1327
1328         // calculate 'right' vector for end
1329         VectorSubtract (r_origin, org2, diff);
1330         VectorNormalizeFast (diff);
1331         CrossProduct (normal, diff, right2);
1332
1333         vert[ 0] = org1[0] + width * right1[0];
1334         vert[ 1] = org1[1] + width * right1[1];
1335         vert[ 2] = org1[2] + width * right1[2];
1336         vert[ 4] = org1[0] - width * right1[0];
1337         vert[ 5] = org1[1] - width * right1[1];
1338         vert[ 6] = org1[2] - width * right1[2];
1339         vert[ 8] = org2[0] - width * right2[0];
1340         vert[ 9] = org2[1] - width * right2[1];
1341         vert[10] = org2[2] - width * right2[2];
1342         vert[12] = org2[0] + width * right2[0];
1343         vert[13] = org2[1] + width * right2[1];
1344         vert[14] = org2[2] + width * right2[2];
1345 }