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_speeds = {0, "r_speeds","0"};
  56 cvar_t r_fullbright = {0, "r_fullbright","0"};
  57 cvar_t r_wateralpha = {CVAR_SAVE, "r_wateralpha","1"};
  58 cvar_t r_dynamic = {CVAR_SAVE, "r_dynamic","1"};
  59 cvar_t r_fullbrights = {CVAR_SAVE, "r_fullbrights", "1"};
  60
  61 cvar_t gl_fogenable = {0, "gl_fogenable", "0"};
  62 cvar_t gl_fogdensity = {0, "gl_fogdensity", "0.25"};
  63 cvar_t gl_fogred = {0, "gl_fogred","0.3"};
  64 cvar_t gl_foggreen = {0, "gl_foggreen","0.3"};
  65 cvar_t gl_fogblue = {0, "gl_fogblue","0.3"};
  66 cvar_t gl_fogstart = {0, "gl_fogstart", "0"};
  67 cvar_t gl_fogend = {0, "gl_fogend","0"};
  68
  69 cvar_t r_textureunits = {0, "r_textureunits", "32"};
  70
  71 void R_ModulateColors(float *in, float *out, int verts, float r, float g, float b)
  72 {
  73         int i;
  74         for (i = 0;i < verts;i++)
  75         {
  76                 out[0] = in[0] * r;
  77                 out[1] = in[1] * g;
  78                 out[2] = in[2] * b;
  79                 out[3] = in[3];
  80                 in += 4;
  81                 out += 4;
  82         }
  83 }
  84
  85 void R_FillColors(float *out, int verts, float r, float g, float b, float a)
  86 {
  87         int i;
  88         for (i = 0;i < verts;i++)
  89         {
  90                 out[0] = r;
  91                 out[1] = g;
  92                 out[2] = b;
  93                 out[3] = a;
  94                 out += 4;
  95         }
  96 }
  97
  98 /*
  99 ====================
 100 R_TimeRefresh_f
 101
 102 For program optimization
 103 ====================
 104 */
 105 qboolean intimerefresh = 0;
 106 static void R_TimeRefresh_f (void)
 107 {
 108         int i;
 109         float start, stop, time;
 110
 111         intimerefresh = 1;
 112         start = Sys_DoubleTime ();
 113         for (i = 0;i < 128;i++)
 114         {
 115                 r_refdef.viewangles[0] = 0;
 116                 r_refdef.viewangles[1] = i/128.0*360.0;
 117                 r_refdef.viewangles[2] = 0;
 118                 CL_UpdateScreen();
 119         }
 120
 121         stop = Sys_DoubleTime ();
 122         intimerefresh = 0;
 123         time = stop-start;
 124         Con_Printf ("%f seconds (%f fps)\n", time, 128/time);
 125 }
 126
 127 vec3_t fogcolor;
 128 vec_t fogdensity;
 129 float fog_density, fog_red, fog_green, fog_blue;
 130 qboolean fogenabled;
 131 qboolean oldgl_fogenable;
 132 void R_SetupFog(void)
 133 {
 134         if (gamemode == GAME_NEHAHRA)
 135         {
 136                 if (gl_fogenable.integer)
 137                 {
 138                         oldgl_fogenable = true;
 139                         fog_density = gl_fogdensity.value;
 140                         fog_red = gl_fogred.value;
 141                         fog_green = gl_foggreen.value;
 142                         fog_blue = gl_fogblue.value;
 143                 }
 144                 else if (oldgl_fogenable)
 145                 {
 146                         oldgl_fogenable = false;
 147                         fog_density = 0;
 148                         fog_red = 0;
 149                         fog_green = 0;
 150                         fog_blue = 0;
 151                 }
 152         }
 153         if (fog_density)
 154         {
 155                 fogcolor[0] = fog_red   = bound(0.0f, fog_red  , 1.0f);
 156                 fogcolor[1] = fog_green = bound(0.0f, fog_green, 1.0f);
 157                 fogcolor[2] = fog_blue  = bound(0.0f, fog_blue , 1.0f);
 158         }
 159         if (fog_density)
 160         {
 161                 fogenabled = true;
 162                 fogdensity = -4000.0f / (fog_density * fog_density);
 163                 // fog color was already set
 164         }
 165         else
 166                 fogenabled = false;
 167 }
 168
 169 // FIXME: move this to client?
 170 void FOG_clear(void)
 171 {
 172         if (gamemode == GAME_NEHAHRA)
 173         {
 174                 Cvar_Set("gl_fogenable", "0");
 175                 Cvar_Set("gl_fogdensity", "0.2");
 176                 Cvar_Set("gl_fogred", "0.3");
 177                 Cvar_Set("gl_foggreen", "0.3");
 178                 Cvar_Set("gl_fogblue", "0.3");
 179         }
 180         fog_density = fog_red = fog_green = fog_blue = 0.0f;
 181 }
 182
 183 // FIXME: move this to client?
 184 void FOG_registercvars(void)
 185 {
 186         if (gamemode == GAME_NEHAHRA)
 187         {
 188                 Cvar_RegisterVariable (&gl_fogenable);
 189                 Cvar_RegisterVariable (&gl_fogdensity);
 190                 Cvar_RegisterVariable (&gl_fogred);
 191                 Cvar_RegisterVariable (&gl_foggreen);
 192                 Cvar_RegisterVariable (&gl_fogblue);
 193                 Cvar_RegisterVariable (&gl_fogstart);
 194                 Cvar_RegisterVariable (&gl_fogend);
 195         }
 196 }
 197
 198 void gl_main_start(void)
 199 {
 200 }
 201
 202 void gl_main_shutdown(void)
 203 {
 204 }
 205
 206 extern void CL_ParseEntityLump(char *entitystring);
 207 void gl_main_newmap(void)
 208 {
 209         if (cl.worldmodel && cl.worldmodel->entities)
 210                 CL_ParseEntityLump(cl.worldmodel->entities);
 211         r_framecount = 1;
 212 }
 213
 214 void GL_Main_Init(void)
 215 {
 216         Matrix4x4_CreateIdentity(&r_identitymatrix);
 217 // FIXME: move this to client?
 218         FOG_registercvars();
 219         Cmd_AddCommand ("timerefresh", R_TimeRefresh_f);
 220         Cvar_RegisterVariable (&r_drawentities);
 221         Cvar_RegisterVariable (&r_drawviewmodel);
 222         Cvar_RegisterVariable (&r_shadows);
 223         Cvar_RegisterVariable (&r_speeds);
 224         Cvar_RegisterVariable (&r_fullbrights);
 225         Cvar_RegisterVariable (&r_wateralpha);
 226         Cvar_RegisterVariable (&r_dynamic);
 227         Cvar_RegisterVariable (&r_fullbright);
 228         Cvar_RegisterVariable (&r_textureunits);
 229         if (gamemode == GAME_NEHAHRA)
 230                 Cvar_SetValue("r_fullbrights", 0);
 231         R_RegisterModule("GL_Main", gl_main_start, gl_main_shutdown, gl_main_newmap);
 232 }
 233
 234 vec3_t r_farclip_origin;
 235 vec3_t r_farclip_direction;
 236 vec_t r_farclip_directiondist;
 237 vec_t r_farclip_meshfarclip;
 238 int r_farclip_directionbit0;
 239 int r_farclip_directionbit1;
 240 int r_farclip_directionbit2;
 241
 242 // start a farclip measuring session
 243 void R_FarClip_Start(vec3_t origin, vec3_t direction, vec_t startfarclip)
 244 {
 245         VectorCopy(origin, r_farclip_origin);
 246         VectorCopy(direction, r_farclip_direction);
 247         r_farclip_directiondist = DotProduct(r_farclip_origin, r_farclip_direction);
 248         r_farclip_directionbit0 = r_farclip_direction[0] < 0;
 249         r_farclip_directionbit1 = r_farclip_direction[1] < 0;
 250         r_farclip_directionbit2 = r_farclip_direction[2] < 0;
 251         r_farclip_meshfarclip = r_farclip_directiondist + startfarclip;
 252 }
 253
 254 // enlarge farclip to accomodate box
 255 void R_FarClip_Box(vec3_t mins, vec3_t maxs)
 256 {
 257         float d;
 258         d = (r_farclip_directionbit0 ? mins[0] : maxs[0]) * r_farclip_direction[0]
 259           + (r_farclip_directionbit1 ? mins[1] : maxs[1]) * r_farclip_direction[1]
 260           + (r_farclip_directionbit2 ? mins[2] : maxs[2]) * r_farclip_direction[2];
 261         if (r_farclip_meshfarclip < d)
 262                 r_farclip_meshfarclip = d;
 263 }
 264
 265 // return farclip value
 266 float R_FarClip_Finish(void)
 267 {
 268         return r_farclip_meshfarclip - r_farclip_directiondist;
 269 }
 270
 271 /*
 272 ===============
 273 R_NewMap
 274 ===============
 275 */
 276 void R_NewMap (void)
 277 {
 278         R_Modules_NewMap();
 279 }
 280
 281 extern void R_Textures_Init(void);
 282 extern void Mod_RenderInit(void);
 283 extern void GL_Draw_Init(void);
 284 extern void GL_Main_Init(void);
 285 extern void R_Shadow_Init(void);
 286 extern void GL_Models_Init(void);
 287 extern void R_Sky_Init(void);
 288 extern void GL_Surf_Init(void);
 289 extern void R_Crosshairs_Init(void);
 290 extern void R_Light_Init(void);
 291 extern void R_Particles_Init(void);
 292 extern void R_Explosion_Init(void);
 293 extern void ui_init(void);
 294 extern void gl_backend_init(void);
 295 extern void Sbar_Init(void);
 296
 297 void Render_Init(void)
 298 {
 299         R_Textures_Init();
 300         Mod_RenderInit();
 301         gl_backend_init();
 302         R_MeshQueue_Init();
 303         GL_Draw_Init();
 304         GL_Main_Init();
 305         R_Shadow_Init();
 306         GL_Models_Init();
 307         R_Sky_Init();
 308         GL_Surf_Init();
 309         R_Crosshairs_Init();
 310         R_Light_Init();
 311         R_Particles_Init();
 312         R_Explosion_Init();
 313         ui_init();
 314         Sbar_Init();
 315 }
 316
 317 /*
 318 ===============
 319 GL_Init
 320 ===============
 321 */
 322 extern char *ENGINE_EXTENSIONS;
 323 void GL_Init (void)
 324 {
 325         VID_CheckExtensions();
 326
 327         // LordHavoc: report supported extensions
 328         Con_Printf ("\nengine extensions: %s\n", ENGINE_EXTENSIONS);
 329 }
 330
 331 int R_CullBox(const vec3_t emins, const vec3_t emaxs)
 332 {
 333         int i;
 334         mplane_t *p;
 335         for (i = 0;i < 4;i++)
 336         {
 337                 p = frustum + i;
 338                 switch(p->signbits)
 339                 {
 340                 default:
 341                 case 0:
 342                         if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
 343                                 return true;
 344                         break;
 345                 case 1:
 346                         if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
 347                                 return true;
 348                         break;
 349                 case 2:
 350                         if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
 351                                 return true;
 352                         break;
 353                 case 3:
 354                         if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
 355                                 return true;
 356                         break;
 357                 case 4:
 358                         if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
 359                                 return true;
 360                         break;
 361                 case 5:
 362                         if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
 363                                 return true;
 364                         break;
 365                 case 6:
 366                         if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
 367                                 return true;
 368                         break;
 369                 case 7:
 370                         if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
 371                                 return true;
 372                         break;
 373                 }
 374         }
 375         return false;
 376 }
 377
 378 int R_NotCulledBox(const vec3_t emins, const vec3_t emaxs)
 379 {
 380         int i;
 381         mplane_t *p;
 382         for (i = 0;i < 4;i++)
 383         {
 384                 p = frustum + i;
 385                 switch(p->signbits)
 386                 {
 387                 default:
 388                 case 0:
 389                         if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
 390                                 return false;
 391                         break;
 392                 case 1:
 393                         if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
 394                                 return false;
 395                         break;
 396                 case 2:
 397                         if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
 398                                 return false;
 399                         break;
 400                 case 3:
 401                         if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
 402                                 return false;
 403                         break;
 404                 case 4:
 405                         if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
 406                                 return false;
 407                         break;
 408                 case 5:
 409                         if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
 410                                 return false;
 411                         break;
 412                 case 6:
 413                         if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
 414                                 return false;
 415                         break;
 416                 case 7:
 417                         if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
 418                                 return false;
 419                         break;
 420                 }
 421         }
 422         return true;
 423 }
 424
 425
 426 //==================================================================================
 427
 428 static void R_MarkEntities (void)
 429 {
 430         int i;
 431         vec3_t v;
 432         entity_render_t *ent;
 433
 434         ent = &cl_entities[0].render;
 435         Matrix4x4_CreateIdentity(&ent->matrix);
 436         Matrix4x4_CreateIdentity(&ent->inversematrix);
 437
 438         if (cl.worldmodel)
 439                 R_FarClip_Box(cl.worldmodel->normalmins, cl.worldmodel->normalmaxs);
 440
 441         if (!r_drawentities.integer)
 442                 return;
 443
 444         for (i = 0;i < r_refdef.numentities;i++)
 445         {
 446                 ent = r_refdef.entities[i];
 447                 Mod_CheckLoaded(ent->model);
 448
 449                 // move view-relative models to where they should be
 450                 if (ent->flags & RENDER_VIEWMODEL)
 451                 {
 452                         // remove flag so it will not be repeated incase RelinkEntities is not called again for a while
 453                         ent->flags -= RENDER_VIEWMODEL;
 454                         // transform origin
 455                         VectorCopy(ent->origin, v);
 456                         ent->origin[0] = v[0] * vpn[0] + v[1] * vright[0] + v[2] * vup[0] + r_origin[0];
 457                         ent->origin[1] = v[0] * vpn[1] + v[1] * vright[1] + v[2] * vup[1] + r_origin[1];
 458                         ent->origin[2] = v[0] * vpn[2] + v[1] * vright[2] + v[2] * vup[2] + r_origin[2];
 459                         // adjust angles
 460                         VectorAdd(ent->angles, r_refdef.viewangles, ent->angles);
 461                 }
 462
 463                 ent->visframe = r_framecount;
 464                 VectorCopy(ent->angles, v);
 465                 if (!ent->model || ent->model->type != mod_brush)
 466                         v[0] = -v[0];
 467                 Matrix4x4_CreateFromQuakeEntity(&ent->matrix, ent->origin[0], ent->origin[1], ent->origin[2], v[0], v[1], v[2], ent->scale);
 468                 Matrix4x4_Invert_Simple(&ent->inversematrix, &ent->matrix);
 469                 R_LerpAnimation(ent);
 470                 R_UpdateEntLights(ent);
 471                 if (R_CullBox(ent->mins, ent->maxs))
 472                         continue;
 473                 R_FarClip_Box(ent->mins, ent->maxs);
 474         }
 475 }
 476
 477 // only used if skyrendermasked, and normally returns false
 478 int R_DrawBrushModelsSky (void)
 479 {
 480         int i, sky;
 481         entity_render_t *ent;
 482
 483         if (!r_drawentities.integer)
 484                 return false;
 485
 486         sky = false;
 487         for (i = 0;i < r_refdef.numentities;i++)
 488         {
 489                 ent = r_refdef.entities[i];
 490                 if (ent->visframe == r_framecount && ent->model && ent->model->DrawSky)
 491                 {
 492                         ent->model->DrawSky(ent);
 493                         sky = true;
 494                 }
 495         }
 496         return sky;
 497 }
 498
 499 /*
 500 =============
 501 R_DrawViewModel
 502 =============
 503 */
 504 void R_DrawViewModel (void)
 505 {
 506         entity_render_t *ent;
 507
 508         // FIXME: move these checks to client
 509         if (!r_drawviewmodel.integer || chase_active.integer || envmap || !r_drawentities.integer || cl.items & IT_INVISIBILITY || cl.stats[STAT_HEALTH] <= 0 || !cl.viewent.render.model)
 510                 return;
 511
 512         ent = &cl.viewent.render;
 513         Mod_CheckLoaded(ent->model);
 514         R_LerpAnimation(ent);
 515         Matrix4x4_CreateFromQuakeEntity(&ent->matrix, ent->origin[0], ent->origin[1], ent->origin[2], -ent->angles[0], ent->angles[1], ent->angles[2], ent->scale);
 516         Matrix4x4_Invert_Simple(&ent->inversematrix, &ent->matrix);
 517         R_UpdateEntLights(ent);
 518         ent->model->Draw(ent);
 519 }
 520
 521 void R_DrawNoModel(entity_render_t *ent);
 522 void R_DrawModels (void)
 523 {
 524         int i;
 525         entity_render_t *ent;
 526
 527         if (!r_drawentities.integer)
 528                 return;
 529
 530         R_DrawViewModel();
 531         for (i = 0;i < r_refdef.numentities;i++)
 532         {
 533                 ent = r_refdef.entities[i];
 534                 if (ent->visframe == r_framecount)
 535                 {
 536                         if (ent->model)
 537                         {
 538                                 if (ent->model->Draw)
 539                                         ent->model->Draw(ent);
 540                         }
 541                         else
 542                                 R_DrawNoModel(ent);
 543                 }
 544         }
 545 }
 546
 547 void R_DrawFakeShadows (void)
 548 {
 549         int i;
 550         entity_render_t *ent;
 551
 552         if (!r_drawentities.integer)
 553                 return;
 554
 555         ent = &cl_entities[0].render;
 556         if (ent->model && ent->model->DrawFakeShadow)
 557                 ent->model->DrawFakeShadow(ent);
 558         for (i = 0;i < r_refdef.numentities;i++)
 559         {
 560                 ent = r_refdef.entities[i];
 561                 if (ent->model && ent->model->DrawFakeShadow)
 562                         ent->model->DrawFakeShadow(ent);
 563         }
 564 }
 565
 566 static void R_SetFrustum (void)
 567 {
 568         int i;
 569
 570         // LordHavoc: note to all quake engine coders, the special case for 90
 571         // degrees assumed a square view (wrong), so I removed it, Quake2 has it
 572         // disabled as well.
 573         // rotate VPN right by FOV_X/2 degrees
 574         RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_refdef.fov_x / 2 ) );
 575         // rotate VPN left by FOV_X/2 degrees
 576         RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_refdef.fov_x / 2 );
 577         // rotate VPN up by FOV_X/2 degrees
 578         RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_refdef.fov_y / 2 );
 579         // rotate VPN down by FOV_X/2 degrees
 580         RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_refdef.fov_y / 2 ) );
 581
 582         for (i = 0;i < 4;i++)
 583         {
 584                 frustum[i].type = PLANE_ANYZ;
 585                 frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
 586                 PlaneClassify(&frustum[i]);
 587         }
 588 }
 589
 590 /*
 591 ===============
 592 R_SetupFrame
 593 ===============
 594 */
 595 static void R_SetupFrame (void)
 596 {
 597 // don't allow cheats in multiplayer
 598         if (cl.maxclients > 1)
 599         {
 600                 if (r_fullbright.integer != 0)
 601                         Cvar_Set ("r_fullbright", "0");
 602                 if (r_ambient.value != 0)
 603                         Cvar_Set ("r_ambient", "0");
 604         }
 605
 606         r_framecount++;
 607
 608 // build the transformation matrix for the given view angles
 609         VectorCopy (r_refdef.vieworg, r_origin);
 610
 611         AngleVectors (r_refdef.viewangles, vpn, vright, vup);
 612
 613         R_AnimateLight ();
 614 }
 615
 616
 617 static void R_BlendView(void)
 618 {
 619         rmeshstate_t m;
 620         float r;
 621
 622         if (r_refdef.viewblend[3] < 0.01f)
 623                 return;
 624
 625         memset(&m, 0, sizeof(m));
 626         m.blendfunc1 = GL_SRC_ALPHA;
 627         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 628         m.depthdisable = true; // magic
 629         R_Mesh_Matrix(&r_identitymatrix);
 630         R_Mesh_State(&m);
 631
 632         r = 64000;
 633         varray_vertex[0] = r_origin[0] + vpn[0] * 1.5 - vright[0] * r - vup[0] * r;
 634         varray_vertex[1] = r_origin[1] + vpn[1] * 1.5 - vright[1] * r - vup[1] * r;
 635         varray_vertex[2] = r_origin[2] + vpn[2] * 1.5 - vright[2] * r - vup[2] * r;
 636         r *= 3;
 637         varray_vertex[4] = varray_vertex[0] + vup[0] * r;
 638         varray_vertex[5] = varray_vertex[1] + vup[1] * r;
 639         varray_vertex[6] = varray_vertex[2] + vup[2] * r;
 640         varray_vertex[8] = varray_vertex[0] + vright[0] * r;
 641         varray_vertex[9] = varray_vertex[1] + vright[1] * r;
 642         varray_vertex[10] = varray_vertex[2] + vright[2] * r;
 643         GL_Color(r_refdef.viewblend[0], r_refdef.viewblend[1], r_refdef.viewblend[2], r_refdef.viewblend[3]);
 644         R_Mesh_Draw(3, 1, polygonelements);
 645 }
 646
 647 /*
 648 ================
 649 R_RenderView
 650
 651 r_refdef must be set before the first call
 652 ================
 653 */
 654 void R_RenderView (void)
 655 {
 656         entity_render_t *world;
 657         if (!r_refdef.entities/* || !cl.worldmodel*/)
 658                 return; //Host_Error ("R_RenderView: NULL worldmodel");
 659
 660         world = &cl_entities[0].render;
 661
 662         // FIXME: move to client
 663         R_MoveExplosions();
 664         R_TimeReport("mexplosion");
 665
 666         R_Textures_Frame();
 667         R_SetupFrame();
 668         R_SetFrustum();
 669         R_SetupFog();
 670         R_SkyStartFrame();
 671         R_BuildLightList();
 672         R_TimeReport("setup");
 673
 674         R_FarClip_Start(r_origin, vpn, 768.0f);
 675         R_MarkEntities();
 676         r_farclip = R_FarClip_Finish() + 256.0f;
 677         R_TimeReport("markentity");
 678
 679         GL_SetupView_ViewPort(r_refdef.x, r_refdef.y, r_refdef.width, r_refdef.height);
 680         GL_SetupView_Mode_Perspective((double) r_refdef.height / r_refdef.width, r_refdef.fov_x, r_refdef.fov_y, 1.0f, r_farclip);
 681         GL_SetupView_Orientation_FromEntity (r_refdef.vieworg, r_refdef.viewangles);
 682         qglDepthFunc(GL_LEQUAL);
 683
 684         R_Mesh_Start();
 685         R_MeshQueue_BeginScene();
 686
 687         if (R_DrawBrushModelsSky())
 688                 R_TimeReport("bmodelsky");
 689
 690         // must occur early because it can draw sky
 691         R_DrawWorld(world);
 692         R_TimeReport("world");
 693
 694         // don't let sound skip if going slow
 695         if (!intimerefresh && !r_speeds.integer)
 696                 S_ExtraUpdate ();
 697
 698         R_DrawModels();
 699         R_TimeReport("models");
 700
 701         R_DrawParticles();
 702         R_TimeReport("particles");
 703
 704         R_DrawExplosions();
 705         R_TimeReport("explosions");
 706
 707         R_MeshQueue_RenderTransparent();
 708         R_TimeReport("drawtrans");
 709
 710         R_DrawCoronas();
 711         R_TimeReport("coronas");
 712
 713         R_DrawWorldCrosshair();
 714         R_TimeReport("crosshair");
 715
 716         R_BlendView();
 717         R_TimeReport("blendview");
 718
 719         R_MeshQueue_Render();
 720         R_MeshQueue_EndScene();
 721         if (r_shadows.integer)
 722         {
 723                 R_DrawFakeShadows();
 724                 R_TimeReport("fakeshadows");
 725         }
 726         R_Mesh_Finish();
 727         R_TimeReport("meshfinish");
 728 }
 729
 730 /*
 731 void R_DrawBBoxMesh(vec3_t mins, vec3_t maxs, float cr, float cg, float cb, float ca)
 732 {
 733         int i;
 734         float *v, *c, f1, f2, diff[3];
 735         rmeshstate_t m;
 736         m.blendfunc1 = GL_SRC_ALPHA;
 737         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 738         R_Mesh_Matrix(&r_identitymatrix);
 739         R_Mesh_State(&m);
 740
 741         varray_vertex[ 0] = mins[0];varray_vertex[ 1] = mins[1];varray_vertex[ 2] = mins[2];
 742         varray_vertex[ 4] = maxs[0];varray_vertex[ 5] = mins[1];varray_vertex[ 6] = mins[2];
 743         varray_vertex[ 8] = mins[0];varray_vertex[ 9] = maxs[1];varray_vertex[10] = mins[2];
 744         varray_vertex[12] = maxs[0];varray_vertex[13] = maxs[1];varray_vertex[14] = mins[2];
 745         varray_vertex[16] = mins[0];varray_vertex[17] = mins[1];varray_vertex[18] = maxs[2];
 746         varray_vertex[20] = maxs[0];varray_vertex[21] = mins[1];varray_vertex[22] = maxs[2];
 747         varray_vertex[24] = mins[0];varray_vertex[25] = maxs[1];varray_vertex[26] = maxs[2];
 748         varray_vertex[28] = maxs[0];varray_vertex[29] = maxs[1];varray_vertex[30] = maxs[2];
 749         R_FillColors(varray_color, 8, cr * r_colorscale, cg * r_colorscale, cb * r_colorscale, ca);
 750         if (fogenabled)
 751         {
 752                 for (i = 0, v = varray_vertex, c = varray_color;i < 8;i++, v += 4, c += 4)
 753                 {
 754                         VectorSubtract(v, r_origin, diff);
 755                         f2 = exp(fogdensity/DotProduct(diff, diff));
 756                         f1 = 1 - f2;
 757                         f2 *= r_colorscale;
 758                         c[0] = c[0] * f1 + fogcolor[0] * f2;
 759                         c[1] = c[1] * f1 + fogcolor[1] * f2;
 760                         c[2] = c[2] * f1 + fogcolor[2] * f2;
 761                 }
 762         }
 763         GL_UseColorArray();
 764         R_Mesh_Draw(8, 12);
 765 }
 766 */
 767
 768 void R_DrawNoModelCallback(const void *calldata1, int calldata2)
 769 {
 770         const entity_render_t *ent = calldata1;
 771         int i, element[24];
 772         float f1, f2, *c, diff[3];
 773         rmeshstate_t m;
 774         memset(&m, 0, sizeof(m));
 775         if (ent->flags & EF_ADDITIVE)
 776         {
 777                 m.blendfunc1 = GL_SRC_ALPHA;
 778                 m.blendfunc2 = GL_ONE;
 779         }
 780         else if (ent->alpha < 1)
 781         {
 782                 m.blendfunc1 = GL_SRC_ALPHA;
 783                 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 784         }
 785         else
 786         {
 787                 m.blendfunc1 = GL_ONE;
 788                 m.blendfunc2 = GL_ZERO;
 789         }
 790         R_Mesh_Matrix(&ent->matrix);
 791         R_Mesh_State(&m);
 792
 793         element[ 0] = 5;element[ 1] = 2;element[ 2] = 0;
 794         element[ 3] = 5;element[ 4] = 1;element[ 5] = 2;
 795         element[ 6] = 5;element[ 7] = 0;element[ 8] = 3;
 796         element[ 9] = 5;element[10] = 3;element[11] = 1;
 797         element[12] = 0;element[13] = 2;element[14] = 4;
 798         element[15] = 2;element[16] = 1;element[17] = 4;
 799         element[18] = 3;element[19] = 0;element[20] = 4;
 800         element[21] = 1;element[22] = 3;element[23] = 4;
 801         varray_vertex[ 0] = -16;varray_vertex[ 1] =   0;varray_vertex[ 2] =   0;
 802         varray_vertex[ 4] =  16;varray_vertex[ 5] =   0;varray_vertex[ 6] =   0;
 803         varray_vertex[ 8] =   0;varray_vertex[ 9] = -16;varray_vertex[10] =   0;
 804         varray_vertex[12] =   0;varray_vertex[13] =  16;varray_vertex[14] =   0;
 805         varray_vertex[16] =   0;varray_vertex[17] =   0;varray_vertex[18] = -16;
 806         varray_vertex[20] =   0;varray_vertex[21] =   0;varray_vertex[22] =  16;
 807         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;
 808         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;
 809         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;
 810         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;
 811         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;
 812         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;
 813         if (fogenabled)
 814         {
 815                 VectorSubtract(ent->origin, r_origin, diff);
 816                 f2 = exp(fogdensity/DotProduct(diff, diff));
 817                 f1 = 1 - f2;
 818                 for (i = 0, c = varray_color;i < 6;i++, c += 4)
 819                 {
 820                         c[0] = (c[0] * f1 + fogcolor[0] * f2) * r_colorscale;
 821                         c[1] = (c[1] * f1 + fogcolor[1] * f2) * r_colorscale;
 822                         c[2] = (c[2] * f1 + fogcolor[2] * f2) * r_colorscale;
 823                 }
 824         }
 825         else
 826         {
 827                 for (i = 0, c = varray_color;i < 6;i++, c += 4)
 828                 {
 829                         c[0] *= r_colorscale;
 830                         c[1] *= r_colorscale;
 831                         c[2] *= r_colorscale;
 832                 }
 833         }
 834         GL_UseColorArray();
 835         R_Mesh_Draw(6, 8, element);
 836 }
 837
 838 void R_DrawNoModel(entity_render_t *ent)
 839 {
 840         //if ((ent->effects & EF_ADDITIVE) || (ent->alpha < 1))
 841                 R_MeshQueue_AddTransparent(ent->origin, R_DrawNoModelCallback, ent, 0);
 842         //else
 843         //      R_DrawNoModelCallback(ent, 0);
 844 }
 845
 846 void R_CalcBeamVerts (float *vert, vec3_t org1, vec3_t org2, float width)
 847 {
 848         vec3_t right1, right2, diff, normal;
 849
 850         VectorSubtract (org2, org1, normal);
 851         VectorNormalizeFast (normal);
 852
 853         // calculate 'right' vector for start
 854         VectorSubtract (r_origin, org1, diff);
 855         VectorNormalizeFast (diff);
 856         CrossProduct (normal, diff, right1);
 857
 858         // calculate 'right' vector for end
 859         VectorSubtract (r_origin, org2, diff);
 860         VectorNormalizeFast (diff);
 861         CrossProduct (normal, diff, right2);
 862
 863         vert[ 0] = org1[0] + width * right1[0];
 864         vert[ 1] = org1[1] + width * right1[1];
 865         vert[ 2] = org1[2] + width * right1[2];
 866         vert[ 4] = org1[0] - width * right1[0];
 867         vert[ 5] = org1[1] - width * right1[1];
 868         vert[ 6] = org1[2] - width * right1[2];
 869         vert[ 8] = org2[0] - width * right2[0];
 870         vert[ 9] = org2[1] - width * right2[1];
 871         vert[10] = org2[2] - width * right2[2];
 872         vert[12] = org2[0] + width * right2[0];
 873         vert[13] = org2[1] + width * right2[1];
 874         vert[14] = org2[2] + width * right2[2];
 875 }