static crosshair is now drawn during sbar stage (where it should be), fixes the bug...
[xonotic/darkplaces.git] / 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_speeds = {0, "r_speeds","0"};
55 cvar_t r_fullbright = {0, "r_fullbright","0"};
56 cvar_t r_wateralpha = {CVAR_SAVE, "r_wateralpha","1"};
57 cvar_t r_dynamic = {CVAR_SAVE, "r_dynamic","1"};
58 cvar_t r_fullbrights = {CVAR_SAVE, "r_fullbrights", "1"};
59
60 cvar_t gl_fogenable = {0, "gl_fogenable", "0"};
61 cvar_t gl_fogdensity = {0, "gl_fogdensity", "0.25"};
62 cvar_t gl_fogred = {0, "gl_fogred","0.3"};
63 cvar_t gl_foggreen = {0, "gl_foggreen","0.3"};
64 cvar_t gl_fogblue = {0, "gl_fogblue","0.3"};
65 cvar_t gl_fogstart = {0, "gl_fogstart", "0"};
66 cvar_t gl_fogend = {0, "gl_fogend","0"};
67
68 cvar_t r_textureunits = {0, "r_textureunits", "32"};
69
70 void R_ModulateColors(float *in, float *out, int verts, float r, float g, float b)
71 {
72         int i;
73         for (i = 0;i < verts;i++)
74         {
75                 out[0] = in[0] * r;
76                 out[1] = in[1] * g;
77                 out[2] = in[2] * b;
78                 out[3] = in[3];
79                 in += 4;
80                 out += 4;
81         }
82 }
83
84 void R_FillColors(float *out, int verts, float r, float g, float b, float a)
85 {
86         int i;
87         for (i = 0;i < verts;i++)
88         {
89                 out[0] = r;
90                 out[1] = g;
91                 out[2] = b;
92                 out[3] = a;
93                 out += 4;
94         }
95 }
96
97 /*
98 ====================
99 R_TimeRefresh_f
100
101 For program optimization
102 ====================
103 */
104 qboolean intimerefresh = 0;
105 static void R_TimeRefresh_f (void)
106 {
107         int i;
108         float start, stop, time;
109
110         intimerefresh = 1;
111         start = Sys_DoubleTime ();
112         for (i = 0;i < 128;i++)
113         {
114                 r_refdef.viewangles[0] = 0;
115                 r_refdef.viewangles[1] = i/128.0*360.0;
116                 r_refdef.viewangles[2] = 0;
117                 CL_UpdateScreen();
118         }
119
120         stop = Sys_DoubleTime ();
121         intimerefresh = 0;
122         time = stop-start;
123         Con_Printf ("%f seconds (%f fps)\n", time, 128/time);
124 }
125
126 vec3_t fogcolor;
127 vec_t fogdensity;
128 float fog_density, fog_red, fog_green, fog_blue;
129 qboolean fogenabled;
130 qboolean oldgl_fogenable;
131 void R_SetupFog(void)
132 {
133         if (gamemode == GAME_NEHAHRA)
134         {
135                 if (gl_fogenable.integer)
136                 {
137                         oldgl_fogenable = true;
138                         fog_density = gl_fogdensity.value;
139                         fog_red = gl_fogred.value;
140                         fog_green = gl_foggreen.value;
141                         fog_blue = gl_fogblue.value;
142                 }
143                 else if (oldgl_fogenable)
144                 {
145                         oldgl_fogenable = false;
146                         fog_density = 0;
147                         fog_red = 0;
148                         fog_green = 0;
149                         fog_blue = 0;
150                 }
151         }
152         if (fog_density)
153         {
154                 fogcolor[0] = fog_red   = bound(0.0f, fog_red  , 1.0f);
155                 fogcolor[1] = fog_green = bound(0.0f, fog_green, 1.0f);
156                 fogcolor[2] = fog_blue  = bound(0.0f, fog_blue , 1.0f);
157         }
158         if (fog_density)
159         {
160                 fogenabled = true;
161                 fogdensity = -4000.0f / (fog_density * fog_density);
162                 // fog color was already set
163         }
164         else
165                 fogenabled = false;
166 }
167
168 // FIXME: move this to client?
169 void FOG_clear(void)
170 {
171         if (gamemode == GAME_NEHAHRA)
172         {
173                 Cvar_Set("gl_fogenable", "0");
174                 Cvar_Set("gl_fogdensity", "0.2");
175                 Cvar_Set("gl_fogred", "0.3");
176                 Cvar_Set("gl_foggreen", "0.3");
177                 Cvar_Set("gl_fogblue", "0.3");
178         }
179         fog_density = fog_red = fog_green = fog_blue = 0.0f;
180 }
181
182 // FIXME: move this to client?
183 void FOG_registercvars(void)
184 {
185         if (gamemode == GAME_NEHAHRA)
186         {
187                 Cvar_RegisterVariable (&gl_fogenable);
188                 Cvar_RegisterVariable (&gl_fogdensity);
189                 Cvar_RegisterVariable (&gl_fogred);
190                 Cvar_RegisterVariable (&gl_foggreen);
191                 Cvar_RegisterVariable (&gl_fogblue);
192                 Cvar_RegisterVariable (&gl_fogstart);
193                 Cvar_RegisterVariable (&gl_fogend);
194         }
195 }
196
197 void gl_main_start(void)
198 {
199 }
200
201 void gl_main_shutdown(void)
202 {
203 }
204
205 extern void CL_ParseEntityLump(char *entitystring);
206 void gl_main_newmap(void)
207 {
208         if (cl.worldmodel && cl.worldmodel->entities)
209                 CL_ParseEntityLump(cl.worldmodel->entities);
210         r_framecount = 1;
211 }
212
213 void GL_Main_Init(void)
214 {
215         Matrix4x4_CreateIdentity(&r_identitymatrix);
216 // FIXME: move this to client?
217         FOG_registercvars();
218         Cmd_AddCommand ("timerefresh", R_TimeRefresh_f);
219         Cvar_RegisterVariable (&r_drawentities);
220         Cvar_RegisterVariable (&r_drawviewmodel);
221         Cvar_RegisterVariable (&r_speeds);
222         Cvar_RegisterVariable (&r_fullbrights);
223         Cvar_RegisterVariable (&r_wateralpha);
224         Cvar_RegisterVariable (&r_dynamic);
225         Cvar_RegisterVariable (&r_fullbright);
226         Cvar_RegisterVariable (&r_textureunits);
227         if (gamemode == GAME_NEHAHRA)
228                 Cvar_SetValue("r_fullbrights", 0);
229         R_RegisterModule("GL_Main", gl_main_start, gl_main_shutdown, gl_main_newmap);
230 }
231
232 vec3_t r_farclip_origin;
233 vec3_t r_farclip_direction;
234 vec_t r_farclip_directiondist;
235 vec_t r_farclip_meshfarclip;
236 int r_farclip_directionbit0;
237 int r_farclip_directionbit1;
238 int r_farclip_directionbit2;
239
240 // start a farclip measuring session
241 void R_FarClip_Start(vec3_t origin, vec3_t direction, vec_t startfarclip)
242 {
243         VectorCopy(origin, r_farclip_origin);
244         VectorCopy(direction, r_farclip_direction);
245         r_farclip_directiondist = DotProduct(r_farclip_origin, r_farclip_direction);
246         r_farclip_directionbit0 = r_farclip_direction[0] < 0;
247         r_farclip_directionbit1 = r_farclip_direction[1] < 0;
248         r_farclip_directionbit2 = r_farclip_direction[2] < 0;
249         r_farclip_meshfarclip = r_farclip_directiondist + startfarclip;
250 }
251
252 // enlarge farclip to accomodate box
253 void R_FarClip_Box(vec3_t mins, vec3_t maxs)
254 {
255         float d;
256         d = (r_farclip_directionbit0 ? mins[0] : maxs[0]) * r_farclip_direction[0]
257           + (r_farclip_directionbit1 ? mins[1] : maxs[1]) * r_farclip_direction[1]
258           + (r_farclip_directionbit2 ? mins[2] : maxs[2]) * r_farclip_direction[2];
259         if (r_farclip_meshfarclip < d)
260                 r_farclip_meshfarclip = d;
261 }
262
263 // return farclip value
264 float R_FarClip_Finish(void)
265 {
266         return r_farclip_meshfarclip - r_farclip_directiondist;
267 }
268
269 /*
270 ===============
271 R_NewMap
272 ===============
273 */
274 void R_NewMap (void)
275 {
276         R_Modules_NewMap();
277 }
278
279 extern void R_Textures_Init(void);
280 extern void Mod_RenderInit(void);
281 extern void GL_Draw_Init(void);
282 extern void GL_Main_Init(void);
283 extern void GL_Models_Init(void);
284 extern void R_Sky_Init(void);
285 extern void GL_Surf_Init(void);
286 extern void R_Crosshairs_Init(void);
287 extern void R_Light_Init(void);
288 extern void R_Particles_Init(void);
289 extern void R_Explosion_Init(void);
290 extern void ui_init(void);
291 extern void gl_backend_init(void);
292 extern void Sbar_Init(void);
293
294 void Render_Init(void)
295 {
296         R_Modules_Shutdown();
297         R_Textures_Init();
298         Mod_RenderInit();
299         gl_backend_init();
300         R_MeshQueue_Init();
301         GL_Draw_Init();
302         GL_Main_Init();
303         GL_Models_Init();
304         R_Sky_Init();
305         GL_Surf_Init();
306         R_Crosshairs_Init();
307         R_Light_Init();
308         R_Particles_Init();
309         R_Explosion_Init();
310         ui_init();
311         Sbar_Init();
312         R_Modules_Start();
313 }
314
315 /*
316 ===============
317 GL_Init
318 ===============
319 */
320 extern char *ENGINE_EXTENSIONS;
321 void GL_Init (void)
322 {
323         VID_CheckExtensions();
324
325         // LordHavoc: report supported extensions
326         Con_Printf ("\nengine extensions: %s\n", ENGINE_EXTENSIONS);
327
328         qglCullFace(GL_FRONT);
329         qglEnable(GL_TEXTURE_2D);
330 }
331
332 int R_CullBox(const vec3_t emins, const vec3_t emaxs)
333 {
334         int i;
335         mplane_t *p;
336         for (i = 0;i < 4;i++)
337         {
338                 p = frustum + i;
339                 switch(p->signbits)
340                 {
341                 default:
342                 case 0:
343                         if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
344                                 return true;
345                         break;
346                 case 1:
347                         if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
348                                 return true;
349                         break;
350                 case 2:
351                         if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
352                                 return true;
353                         break;
354                 case 3:
355                         if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
356                                 return true;
357                         break;
358                 case 4:
359                         if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
360                                 return true;
361                         break;
362                 case 5:
363                         if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
364                                 return true;
365                         break;
366                 case 6:
367                         if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
368                                 return true;
369                         break;
370                 case 7:
371                         if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
372                                 return true;
373                         break;
374                 }
375         }
376         return false;
377 }
378
379 int R_NotCulledBox(const vec3_t emins, const vec3_t emaxs)
380 {
381         int i;
382         mplane_t *p;
383         for (i = 0;i < 4;i++)
384         {
385                 p = frustum + i;
386                 switch(p->signbits)
387                 {
388                 default:
389                 case 0:
390                         if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
391                                 return false;
392                         break;
393                 case 1:
394                         if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
395                                 return false;
396                         break;
397                 case 2:
398                         if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
399                                 return false;
400                         break;
401                 case 3:
402                         if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
403                                 return false;
404                         break;
405                 case 4:
406                         if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
407                                 return false;
408                         break;
409                 case 5:
410                         if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
411                                 return false;
412                         break;
413                 case 6:
414                         if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
415                                 return false;
416                         break;
417                 case 7:
418                         if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
419                                 return false;
420                         break;
421                 }
422         }
423         return true;
424 }
425
426
427 //==================================================================================
428
429 static void R_MarkEntities (void)
430 {
431         int i;
432         vec3_t v;
433         entity_render_t *ent;
434
435         ent = &cl_entities[0].render;
436         Matrix4x4_CreateIdentity(&ent->matrix);
437         Matrix4x4_CreateIdentity(&ent->inversematrix);
438
439         if (cl.worldmodel)
440                 R_FarClip_Box(cl.worldmodel->normalmins, cl.worldmodel->normalmaxs);
441
442         if (!r_drawentities.integer)
443                 return;
444
445         for (i = 0;i < r_refdef.numentities;i++)
446         {
447                 ent = r_refdef.entities[i];
448                 Mod_CheckLoaded(ent->model);
449
450                 // move view-relative models to where they should be
451                 if (ent->flags & RENDER_VIEWMODEL)
452                 {
453                         // remove flag so it will not be repeated incase RelinkEntities is not called again for a while
454                         ent->flags -= RENDER_VIEWMODEL;
455                         // transform origin
456                         VectorCopy(ent->origin, v);
457                         ent->origin[0] = v[0] * vpn[0] + v[1] * vright[0] + v[2] * vup[0] + r_origin[0];
458                         ent->origin[1] = v[0] * vpn[1] + v[1] * vright[1] + v[2] * vup[1] + r_origin[1];
459                         ent->origin[2] = v[0] * vpn[2] + v[1] * vright[2] + v[2] * vup[2] + r_origin[2];
460                         // adjust angles
461                         VectorAdd(ent->angles, r_refdef.viewangles, ent->angles);
462                 }
463
464                 if (R_CullBox(ent->mins, ent->maxs))
465                         continue;
466
467                 ent->visframe = r_framecount;
468                 VectorCopy(ent->angles, v);
469                 if (!ent->model || ent->model->type != mod_brush)
470                         v[0] = -v[0];
471                 Matrix4x4_CreateFromQuakeEntity(&ent->matrix, ent->origin[0], ent->origin[1], ent->origin[2], v[0], v[1], v[2], ent->scale);
472                 Matrix4x4_Invert_Simple(&ent->inversematrix, &ent->matrix);
473                 R_LerpAnimation(ent);
474                 R_UpdateEntLights(ent);
475                 R_FarClip_Box(ent->mins, ent->maxs);
476         }
477 }
478
479 // only used if skyrendermasked, and normally returns false
480 int R_DrawBrushModelsSky (void)
481 {
482         int i, sky;
483         entity_render_t *ent;
484
485         if (!r_drawentities.integer)
486                 return false;
487
488         sky = false;
489         for (i = 0;i < r_refdef.numentities;i++)
490         {
491                 ent = r_refdef.entities[i];
492                 if (ent->visframe == r_framecount && ent->model && ent->model->DrawSky)
493                 {
494                         ent->model->DrawSky(ent);
495                         sky = true;
496                 }
497         }
498         return sky;
499 }
500
501 /*
502 =============
503 R_DrawViewModel
504 =============
505 */
506 void R_DrawViewModel (void)
507 {
508         entity_render_t *ent;
509
510         // FIXME: move these checks to client
511         if (!r_drawviewmodel.integer || chase_active.integer || envmap || !r_drawentities.integer || cl.items & IT_INVISIBILITY || cl.stats[STAT_HEALTH] <= 0 || !cl.viewent.render.model)
512                 return;
513
514         ent = &cl.viewent.render;
515         Mod_CheckLoaded(ent->model);
516         R_LerpAnimation(ent);
517         Matrix4x4_CreateFromQuakeEntity(&ent->matrix, ent->origin[0], ent->origin[1], ent->origin[2], -ent->angles[0], ent->angles[1], ent->angles[2], ent->scale);
518         Matrix4x4_Invert_Simple(&ent->inversematrix, &ent->matrix);
519         R_UpdateEntLights(ent);
520         ent->model->Draw(ent);
521 }
522
523 void R_DrawNoModel(entity_render_t *ent);
524 void R_DrawModels (void)
525 {
526         int i;
527         entity_render_t *ent;
528
529         if (!r_drawentities.integer)
530                 return;
531
532         R_DrawViewModel();
533         for (i = 0;i < r_refdef.numentities;i++)
534         {
535                 ent = r_refdef.entities[i];
536                 if (ent->visframe == r_framecount)
537                 {
538                         if (ent->model)
539                         {
540                                 if (ent->model->Draw)
541                                         ent->model->Draw(ent);
542                         }
543                         else
544                                 R_DrawNoModel(ent);
545                 }
546         }
547 }
548
549 static void R_SetFrustum (void)
550 {
551         int i;
552
553         // LordHavoc: note to all quake engine coders, the special case for 90
554         // degrees assumed a square view (wrong), so I removed it, Quake2 has it
555         // disabled as well.
556         // rotate VPN right by FOV_X/2 degrees
557         RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_refdef.fov_x / 2 ) );
558         // rotate VPN left by FOV_X/2 degrees
559         RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_refdef.fov_x / 2 );
560         // rotate VPN up by FOV_X/2 degrees
561         RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_refdef.fov_y / 2 );
562         // rotate VPN down by FOV_X/2 degrees
563         RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_refdef.fov_y / 2 ) );
564
565         for (i = 0;i < 4;i++)
566         {
567                 frustum[i].type = PLANE_ANYZ;
568                 frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
569                 PlaneClassify(&frustum[i]);
570         }
571 }
572
573 /*
574 ===============
575 R_SetupFrame
576 ===============
577 */
578 static void R_SetupFrame (void)
579 {
580 // don't allow cheats in multiplayer
581         if (cl.maxclients > 1)
582         {
583                 if (r_fullbright.integer != 0)
584                         Cvar_Set ("r_fullbright", "0");
585                 if (r_ambient.value != 0)
586                         Cvar_Set ("r_ambient", "0");
587         }
588
589         r_framecount++;
590
591 // build the transformation matrix for the given view angles
592         VectorCopy (r_refdef.vieworg, r_origin);
593
594         AngleVectors (r_refdef.viewangles, vpn, vright, vup);
595
596         R_AnimateLight ();
597 }
598
599
600 static void R_BlendView(void)
601 {
602         rmeshstate_t m;
603         float r;
604
605         if (r_refdef.viewblend[3] < 0.01f)
606                 return;
607
608         memset(&m, 0, sizeof(m));
609         m.blendfunc1 = GL_SRC_ALPHA;
610         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
611         m.depthdisable = true; // magic
612         R_Mesh_Matrix(&r_identitymatrix);
613         R_Mesh_State(&m);
614
615         varray_color[0] = varray_color[4] = varray_color[8] = r_refdef.viewblend[0];
616         varray_color[1] = varray_color[5] = varray_color[9] = r_refdef.viewblend[1];
617         varray_color[2] = varray_color[6] = varray_color[10] = r_refdef.viewblend[2];
618         varray_color[3] = varray_color[7] = varray_color[11] = r_refdef.viewblend[3];
619         r = 64000;
620         varray_vertex[0] = r_origin[0] + vpn[0] * 1.5 - vright[0] * r - vup[0] * r;
621         varray_vertex[1] = r_origin[1] + vpn[1] * 1.5 - vright[1] * r - vup[1] * r;
622         varray_vertex[2] = r_origin[2] + vpn[2] * 1.5 - vright[2] * r - vup[2] * r;
623         r *= 3;
624         varray_vertex[4] = varray_vertex[0] + vup[0] * r;
625         varray_vertex[5] = varray_vertex[1] + vup[1] * r;
626         varray_vertex[6] = varray_vertex[2] + vup[2] * r;
627         varray_vertex[8] = varray_vertex[0] + vright[0] * r;
628         varray_vertex[9] = varray_vertex[1] + vright[1] * r;
629         varray_vertex[10] = varray_vertex[2] + vright[2] * r;
630         R_Mesh_Draw(3, 1, polygonelements);
631 }
632
633 /*
634 ================
635 R_RenderView
636
637 r_refdef must be set before the first call
638 ================
639 */
640 void R_RenderView (void)
641 {
642         entity_render_t *world;
643         if (!r_refdef.entities/* || !cl.worldmodel*/)
644                 return; //Host_Error ("R_RenderView: NULL worldmodel");
645
646         world = &cl_entities[0].render;
647
648         // FIXME: move to client
649         R_MoveExplosions();
650         R_TimeReport("mexplosion");
651
652         R_Textures_Frame();
653         R_SetupFrame();
654         R_SetFrustum();
655         R_SetupFog();
656         R_SkyStartFrame();
657         R_BuildLightList();
658         R_TimeReport("setup");
659
660         R_FarClip_Start(r_origin, vpn, 768.0f);
661         R_MarkEntities();
662         r_farclip = R_FarClip_Finish() + 256.0f;
663         R_TimeReport("markentity");
664
665         GL_SetupView_ViewPort(r_refdef.x, r_refdef.y, r_refdef.width, r_refdef.height);
666         GL_SetupView_Mode_Perspective((double) r_refdef.height / r_refdef.width, r_refdef.fov_x, r_refdef.fov_y, 1.0f, r_farclip);
667         GL_SetupView_Orientation_FromEntity (r_refdef.vieworg, r_refdef.viewangles);
668         GL_DepthFunc(GL_LEQUAL);
669         
670         R_Mesh_Start();
671         R_MeshQueue_BeginScene();
672
673         if (R_DrawBrushModelsSky())
674                 R_TimeReport("bmodelsky");
675
676         // must occur early because it can draw sky
677         R_DrawWorld(world);
678         R_TimeReport("world");
679
680         // don't let sound skip if going slow
681         if (!intimerefresh && !r_speeds.integer)
682                 S_ExtraUpdate ();
683
684         R_DrawModels();
685         R_TimeReport("models");
686
687         R_DrawParticles();
688         R_TimeReport("particles");
689
690         R_DrawExplosions();
691         R_TimeReport("explosions");
692
693         R_MeshQueue_RenderTransparent();
694         R_TimeReport("drawtrans");
695
696         R_DrawCoronas();
697         R_TimeReport("coronas");
698
699         R_DrawWorldCrosshair();
700         R_TimeReport("crosshair");
701
702         R_BlendView();
703         R_TimeReport("blendview");
704
705         R_MeshQueue_Render();
706         R_MeshQueue_EndScene();
707         R_Mesh_Finish();
708         R_TimeReport("meshfinish");
709 }
710
711 /*
712 void R_DrawBBoxMesh(vec3_t mins, vec3_t maxs, float cr, float cg, float cb, float ca)
713 {
714         int i;
715         float *v, *c, f1, f2, diff[3];
716         rmeshstate_t m;
717         m.blendfunc1 = GL_SRC_ALPHA;
718         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
719         R_Mesh_Matrix(&r_identitymatrix);
720         R_Mesh_State(&m);
721
722         varray_vertex[ 0] = mins[0];varray_vertex[ 1] = mins[1];varray_vertex[ 2] = mins[2];
723         varray_vertex[ 4] = maxs[0];varray_vertex[ 5] = mins[1];varray_vertex[ 6] = mins[2];
724         varray_vertex[ 8] = mins[0];varray_vertex[ 9] = maxs[1];varray_vertex[10] = mins[2];
725         varray_vertex[12] = maxs[0];varray_vertex[13] = maxs[1];varray_vertex[14] = mins[2];
726         varray_vertex[16] = mins[0];varray_vertex[17] = mins[1];varray_vertex[18] = maxs[2];
727         varray_vertex[20] = maxs[0];varray_vertex[21] = mins[1];varray_vertex[22] = maxs[2];
728         varray_vertex[24] = mins[0];varray_vertex[25] = maxs[1];varray_vertex[26] = maxs[2];
729         varray_vertex[28] = maxs[0];varray_vertex[29] = maxs[1];varray_vertex[30] = maxs[2];
730         varray_color[ 0] = varray_color[ 4] = varray_color[ 8] = varray_color[12] = varray_color[16] = varray_color[20] = varray_color[24] = varray_color[28] = cr * r_colorscale;
731         varray_color[ 1] = varray_color[ 5] = varray_color[ 9] = varray_color[13] = varray_color[17] = varray_color[21] = varray_color[25] = varray_color[29] = cg * r_colorscale;
732         varray_color[ 2] = varray_color[ 6] = varray_color[10] = varray_color[14] = varray_color[18] = varray_color[22] = varray_color[26] = varray_color[30] = cb * r_colorscale;
733         varray_color[ 3] = varray_color[ 7] = varray_color[11] = varray_color[15] = varray_color[19] = varray_color[23] = varray_color[27] = varray_color[31] = ca;
734         if (fogenabled)
735         {
736                 for (i = 0, v = varray_vertex, c = varray_color;i < 8;i++, v += 4, c += 4)
737                 {
738                         VectorSubtract(v, r_origin, diff);
739                         f2 = exp(fogdensity/DotProduct(diff, diff));
740                         f1 = 1 - f2;
741                         f2 *= r_colorscale;
742                         c[0] = c[0] * f1 + fogcolor[0] * f2;
743                         c[1] = c[1] * f1 + fogcolor[1] * f2;
744                         c[2] = c[2] * f1 + fogcolor[2] * f2;
745                 }
746         }
747         R_Mesh_Draw(8, 12);
748 }
749 */
750
751 void R_DrawNoModelCallback(const void *calldata1, int calldata2)
752 {
753         const entity_render_t *ent = calldata1;
754         int i, element[24];
755         float f1, f2, *c, diff[3];
756         rmeshstate_t m;
757         memset(&m, 0, sizeof(m));
758         if (ent->flags & EF_ADDITIVE)
759         {
760                 m.blendfunc1 = GL_SRC_ALPHA;
761                 m.blendfunc2 = GL_ONE;
762         }
763         else if (ent->alpha < 1)
764         {
765                 m.blendfunc1 = GL_SRC_ALPHA;
766                 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
767         }
768         else
769         {
770                 m.blendfunc1 = GL_ONE;
771                 m.blendfunc2 = GL_ZERO;
772         }
773         R_Mesh_Matrix(&ent->matrix);
774         R_Mesh_State(&m);
775
776         element[ 0] = 5;element[ 1] = 2;element[ 2] = 0;
777         element[ 3] = 5;element[ 4] = 1;element[ 5] = 2;
778         element[ 6] = 5;element[ 7] = 0;element[ 8] = 3;
779         element[ 9] = 5;element[10] = 3;element[11] = 1;
780         element[12] = 0;element[13] = 2;element[14] = 4;
781         element[15] = 2;element[16] = 1;element[17] = 4;
782         element[18] = 3;element[19] = 0;element[20] = 4;
783         element[21] = 1;element[22] = 3;element[23] = 4;
784         varray_vertex[ 0] = -16;varray_vertex[ 1] =   0;varray_vertex[ 2] =   0;
785         varray_vertex[ 4] =  16;varray_vertex[ 5] =   0;varray_vertex[ 6] =   0;
786         varray_vertex[ 8] =   0;varray_vertex[ 9] = -16;varray_vertex[10] =   0;
787         varray_vertex[12] =   0;varray_vertex[13] =  16;varray_vertex[14] =   0;
788         varray_vertex[16] =   0;varray_vertex[17] =   0;varray_vertex[18] = -16;
789         varray_vertex[20] =   0;varray_vertex[21] =   0;varray_vertex[22] =  16;
790         varray_color[ 0] = 0.00f;varray_color[ 1] = 0.00f;varray_color[ 2] = 0.50f;varray_color[ 3] = ent->alpha;
791         varray_color[ 4] = 0.00f;varray_color[ 5] = 0.00f;varray_color[ 6] = 0.50f;varray_color[ 7] = ent->alpha;
792         varray_color[ 8] = 0.00f;varray_color[ 9] = 0.50f;varray_color[10] = 0.00f;varray_color[11] = ent->alpha;
793         varray_color[12] = 0.00f;varray_color[13] = 0.50f;varray_color[14] = 0.00f;varray_color[15] = ent->alpha;
794         varray_color[16] = 0.50f;varray_color[17] = 0.00f;varray_color[18] = 0.00f;varray_color[19] = ent->alpha;
795         varray_color[20] = 0.50f;varray_color[21] = 0.00f;varray_color[22] = 0.00f;varray_color[23] = ent->alpha;
796         if (fogenabled)
797         {
798                 VectorSubtract(ent->origin, r_origin, diff);
799                 f2 = exp(fogdensity/DotProduct(diff, diff));
800                 f1 = 1 - f2;
801                 for (i = 0, c = varray_color;i < 6;i++, c += 4)
802                 {
803                         c[0] = (c[0] * f1 + fogcolor[0] * f2) * r_colorscale;
804                         c[1] = (c[1] * f1 + fogcolor[1] * f2) * r_colorscale;
805                         c[2] = (c[2] * f1 + fogcolor[2] * f2) * r_colorscale;
806                 }
807         }
808         else
809         {
810                 for (i = 0, c = varray_color;i < 6;i++, c += 4)
811                 {
812                         c[0] *= r_colorscale;
813                         c[1] *= r_colorscale;
814                         c[2] *= r_colorscale;
815                 }
816         }
817         R_Mesh_Draw(6, 8, element);
818 }
819
820 void R_DrawNoModel(entity_render_t *ent)
821 {
822         //if ((ent->effects & EF_ADDITIVE) || (ent->alpha < 1))
823                 R_MeshQueue_AddTransparent(ent->origin, R_DrawNoModelCallback, ent, 0);
824         //else
825         //      R_DrawNoModelCallback(ent, 0);
826 }
827
828 void R_CalcBeamVerts (float *vert, vec3_t org1, vec3_t org2, float width)
829 {
830         vec3_t right1, right2, diff, normal;
831
832         VectorSubtract (org2, org1, normal);
833         VectorNormalizeFast (normal);
834
835         // calculate 'right' vector for start
836         VectorSubtract (r_origin, org1, diff);
837         VectorNormalizeFast (diff);
838         CrossProduct (normal, diff, right1);
839
840         // calculate 'right' vector for end
841         VectorSubtract (r_origin, org2, diff);
842         VectorNormalizeFast (diff);
843         CrossProduct (normal, diff, right2);
844
845         vert[ 0] = org1[0] + width * right1[0];
846         vert[ 1] = org1[1] + width * right1[1];
847         vert[ 2] = org1[2] + width * right1[2];
848         vert[ 4] = org1[0] - width * right1[0];
849         vert[ 5] = org1[1] - width * right1[1];
850         vert[ 6] = org1[2] - width * right1[2];
851         vert[ 8] = org2[0] - width * right2[0];
852         vert[ 9] = org2[1] - width * right2[1];
853         vert[10] = org2[2] - width * right2[2];
854         vert[12] = org2[0] + width * right2[0];
855         vert[13] = org2[1] + width * right2[1];
856         vert[14] = org2[2] + width * right2[2];
857 }