2 Copyright (C) 1996-1997 Id Software, Inc.
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.
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.
13 See the GNU General Public License for more details.
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.
24 // used for dlight push checking and other things
29 matrix4x4_t r_identitymatrix;
31 int c_alias_polys, c_light_polys, c_faces, c_nodes, c_leafs, c_models, c_bmodels, c_sprites, c_particles, c_dlights;
33 // true during envmap command capture
49 // 8.8 fraction of base light value
50 unsigned short d_lightstylevalue[256];
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"};
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"};
68 cvar_t r_textureunits = {0, "r_textureunits", "32"};
70 void R_ModulateColors(float *in, float *out, int verts, float r, float g, float b)
73 for (i = 0;i < verts;i++)
84 void R_FillColors(float *out, int verts, float r, float g, float b, float a)
87 for (i = 0;i < verts;i++)
101 For program optimization
104 qboolean intimerefresh = 0;
105 static void R_TimeRefresh_f (void)
108 float start, stop, time;
111 start = Sys_DoubleTime ();
112 for (i = 0;i < 128;i++)
114 r_refdef.viewangles[0] = 0;
115 r_refdef.viewangles[1] = i/128.0*360.0;
116 r_refdef.viewangles[2] = 0;
120 stop = Sys_DoubleTime ();
123 Con_Printf ("%f seconds (%f fps)\n", time, 128/time);
128 float fog_density, fog_red, fog_green, fog_blue;
130 qboolean oldgl_fogenable;
131 void R_SetupFog(void)
133 if (gamemode == GAME_NEHAHRA)
135 if (gl_fogenable.integer)
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;
143 else if (oldgl_fogenable)
145 oldgl_fogenable = false;
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);
161 fogdensity = -4000.0f / (fog_density * fog_density);
162 // fog color was already set
168 // FIXME: move this to client?
171 if (gamemode == GAME_NEHAHRA)
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");
179 fog_density = fog_red = fog_green = fog_blue = 0.0f;
182 // FIXME: move this to client?
183 void FOG_registercvars(void)
185 if (gamemode == GAME_NEHAHRA)
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);
197 void gl_main_start(void)
201 void gl_main_shutdown(void)
205 extern void CL_ParseEntityLump(char *entitystring);
206 void gl_main_newmap(void)
208 if (cl.worldmodel && cl.worldmodel->entities)
209 CL_ParseEntityLump(cl.worldmodel->entities);
213 void GL_Main_Init(void)
215 Matrix4x4_CreateIdentity(&r_identitymatrix);
216 // FIXME: move this to client?
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);
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;
240 // start a farclip measuring session
241 void R_FarClip_Start(vec3_t origin, vec3_t direction, vec_t startfarclip)
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;
252 // enlarge farclip to accomodate box
253 void R_FarClip_Box(vec3_t mins, vec3_t maxs)
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;
263 // return farclip value
264 float R_FarClip_Finish(void)
266 return r_farclip_meshfarclip - r_farclip_directiondist;
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);
293 void Render_Init(void)
295 R_Modules_Shutdown();
318 extern char *ENGINE_EXTENSIONS;
321 VID_CheckExtensions();
323 // LordHavoc: report supported extensions
324 Con_Printf ("\nengine extensions: %s\n", ENGINE_EXTENSIONS);
326 qglCullFace(GL_FRONT);
327 qglEnable(GL_TEXTURE_2D);
330 int R_CullBox(const vec3_t emins, const vec3_t emaxs)
334 for (i = 0;i < 4;i++)
341 if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
345 if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
349 if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
353 if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
357 if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
361 if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
365 if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
369 if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
377 int R_NotCulledBox(const vec3_t emins, const vec3_t emaxs)
381 for (i = 0;i < 4;i++)
388 if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
392 if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2] < p->dist)
396 if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
400 if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2] < p->dist)
404 if (p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
408 if (p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2] < p->dist)
412 if (p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
416 if (p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2] < p->dist)
425 //==================================================================================
427 static void R_MarkEntities (void)
431 entity_render_t *ent;
433 ent = &cl_entities[0].render;
434 Matrix4x4_CreateIdentity(&ent->matrix);
435 Matrix4x4_CreateIdentity(&ent->inversematrix);
438 R_FarClip_Box(cl.worldmodel->normalmins, cl.worldmodel->normalmaxs);
440 if (!r_drawentities.integer)
443 for (i = 0;i < r_refdef.numentities;i++)
445 ent = r_refdef.entities[i];
446 Mod_CheckLoaded(ent->model);
448 // move view-relative models to where they should be
449 if (ent->flags & RENDER_VIEWMODEL)
451 // remove flag so it will not be repeated incase RelinkEntities is not called again for a while
452 ent->flags -= RENDER_VIEWMODEL;
454 VectorCopy(ent->origin, v);
455 ent->origin[0] = v[0] * vpn[0] + v[1] * vright[0] + v[2] * vup[0] + r_origin[0];
456 ent->origin[1] = v[0] * vpn[1] + v[1] * vright[1] + v[2] * vup[1] + r_origin[1];
457 ent->origin[2] = v[0] * vpn[2] + v[1] * vright[2] + v[2] * vup[2] + r_origin[2];
459 VectorAdd(ent->angles, r_refdef.viewangles, ent->angles);
462 if (R_CullBox(ent->mins, ent->maxs))
465 ent->visframe = r_framecount;
466 VectorCopy(ent->angles, v);
467 if (!ent->model || ent->model->type != mod_brush)
469 Matrix4x4_CreateFromQuakeEntity(&ent->matrix, ent->origin[0], ent->origin[1], ent->origin[2], v[0], v[1], v[2], ent->scale);
470 Matrix4x4_Invert_Simple(&ent->inversematrix, &ent->matrix);
471 R_LerpAnimation(ent);
472 R_UpdateEntLights(ent);
473 R_FarClip_Box(ent->mins, ent->maxs);
477 // only used if skyrendermasked, and normally returns false
478 int R_DrawBrushModelsSky (void)
481 entity_render_t *ent;
483 if (!r_drawentities.integer)
487 for (i = 0;i < r_refdef.numentities;i++)
489 ent = r_refdef.entities[i];
490 if (ent->visframe == r_framecount && ent->model && ent->model->DrawSky)
492 ent->model->DrawSky(ent);
504 void R_DrawViewModel (void)
506 entity_render_t *ent;
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)
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);
521 void R_DrawNoModel(entity_render_t *ent);
522 void R_DrawModels (void)
525 entity_render_t *ent;
527 if (!r_drawentities.integer)
531 for (i = 0;i < r_refdef.numentities;i++)
533 ent = r_refdef.entities[i];
534 if (ent->visframe == r_framecount)
538 if (ent->model->Draw)
539 ent->model->Draw(ent);
547 static void R_SetFrustum (void)
551 // LordHavoc: note to all quake engine coders, the special case for 90
552 // degrees assumed a square view (wrong), so I removed it, Quake2 has it
554 // rotate VPN right by FOV_X/2 degrees
555 RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_refdef.fov_x / 2 ) );
556 // rotate VPN left by FOV_X/2 degrees
557 RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_refdef.fov_x / 2 );
558 // rotate VPN up by FOV_X/2 degrees
559 RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_refdef.fov_y / 2 );
560 // rotate VPN down by FOV_X/2 degrees
561 RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_refdef.fov_y / 2 ) );
563 for (i = 0;i < 4;i++)
565 frustum[i].type = PLANE_ANYZ;
566 frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
567 PlaneClassify(&frustum[i]);
576 static void R_SetupFrame (void)
578 // don't allow cheats in multiplayer
579 if (cl.maxclients > 1)
581 if (r_fullbright.integer != 0)
582 Cvar_Set ("r_fullbright", "0");
583 if (r_ambient.value != 0)
584 Cvar_Set ("r_ambient", "0");
589 // build the transformation matrix for the given view angles
590 VectorCopy (r_refdef.vieworg, r_origin);
592 AngleVectors (r_refdef.viewangles, vpn, vright, vup);
598 static void R_BlendView(void)
603 if (r_refdef.viewblend[3] < 0.01f)
606 memset(&m, 0, sizeof(m));
607 m.blendfunc1 = GL_SRC_ALPHA;
608 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
609 m.wantoverbright = false;
610 m.depthdisable = true; // magic
611 R_Mesh_Matrix(&r_identitymatrix);
614 varray_color[0] = varray_color[4] = varray_color[8] = r_refdef.viewblend[0];
615 varray_color[1] = varray_color[5] = varray_color[9] = r_refdef.viewblend[1];
616 varray_color[2] = varray_color[6] = varray_color[10] = r_refdef.viewblend[2];
617 varray_color[3] = varray_color[7] = varray_color[11] = r_refdef.viewblend[3];
619 varray_vertex[0] = r_origin[0] + vpn[0] * 1.5 - vright[0] * r - vup[0] * r;
620 varray_vertex[1] = r_origin[1] + vpn[1] * 1.5 - vright[1] * r - vup[1] * r;
621 varray_vertex[2] = r_origin[2] + vpn[2] * 1.5 - vright[2] * r - vup[2] * r;
623 varray_vertex[4] = varray_vertex[0] + vup[0] * r;
624 varray_vertex[5] = varray_vertex[1] + vup[1] * r;
625 varray_vertex[6] = varray_vertex[2] + vup[2] * r;
626 varray_vertex[8] = varray_vertex[0] + vright[0] * r;
627 varray_vertex[9] = varray_vertex[1] + vright[1] * r;
628 varray_vertex[10] = varray_vertex[2] + vright[2] * r;
629 R_Mesh_Draw(3, 1, polygonelements);
636 r_refdef must be set before the first call
639 void R_RenderView (void)
641 entity_render_t *world;
642 if (!r_refdef.entities/* || !cl.worldmodel*/)
643 return; //Host_Error ("R_RenderView: NULL worldmodel");
645 world = &cl_entities[0].render;
647 // FIXME: move to client
649 R_TimeReport("mexplosion");
657 R_TimeReport("setup");
659 R_FarClip_Start(r_origin, vpn, 768.0f);
661 r_farclip = R_FarClip_Finish() + 256.0f;
662 R_TimeReport("markentity");
664 GL_SetupView_ViewPort(r_refdef.x, r_refdef.y, r_refdef.width, r_refdef.height);
665 GL_SetupView_Mode_Perspective((double) r_refdef.height / r_refdef.width, r_refdef.fov_x, r_refdef.fov_y, 1.0f, r_farclip);
666 GL_SetupView_Orientation_FromEntity (r_refdef.vieworg, r_refdef.viewangles);
667 GL_DepthFunc(GL_LEQUAL);
670 R_MeshQueue_BeginScene();
672 if (R_DrawBrushModelsSky())
673 R_TimeReport("bmodelsky");
675 // must occur early because it can draw sky
677 R_TimeReport("world");
679 // don't let sound skip if going slow
680 if (!intimerefresh && !r_speeds.integer)
684 R_TimeReport("models");
687 R_TimeReport("particles");
690 R_TimeReport("explosions");
692 R_MeshQueue_RenderTransparent();
693 R_TimeReport("drawtrans");
696 R_TimeReport("coronas");
699 R_TimeReport("crosshair");
702 R_TimeReport("blendview");
704 R_MeshQueue_Render();
705 R_MeshQueue_EndScene();
707 R_TimeReport("meshfinish");
711 void R_DrawBBoxMesh(vec3_t mins, vec3_t maxs, float cr, float cg, float cb, float ca)
714 float *v, *c, f1, f2, diff[3];
716 m.blendfunc1 = GL_SRC_ALPHA;
717 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
718 m.wantoverbright = false;
719 R_Mesh_Matrix(&r_identitymatrix);
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 * mesh_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 * mesh_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 * mesh_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;
736 for (i = 0, v = varray_vertex, c = varray_color;i < 8;i++, v += 4, c += 4)
738 VectorSubtract(v, r_origin, diff);
739 f2 = exp(fogdensity/DotProduct(diff, diff));
741 f2 *= mesh_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;
751 void R_DrawNoModelCallback(const void *calldata1, int calldata2)
753 const entity_render_t *ent = calldata1;
755 float f1, f2, *c, diff[3];
757 memset(&m, 0, sizeof(m));
758 if (ent->flags & EF_ADDITIVE)
760 m.blendfunc1 = GL_SRC_ALPHA;
761 m.blendfunc2 = GL_ONE;
763 else if (ent->alpha < 1)
765 m.blendfunc1 = GL_SRC_ALPHA;
766 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
770 m.blendfunc1 = GL_ONE;
771 m.blendfunc2 = GL_ZERO;
773 m.wantoverbright = false;
774 R_Mesh_Matrix(&ent->matrix);
777 element[ 0] = 5;element[ 1] = 2;element[ 2] = 0;
778 element[ 3] = 5;element[ 4] = 1;element[ 5] = 2;
779 element[ 6] = 5;element[ 7] = 0;element[ 8] = 3;
780 element[ 9] = 5;element[10] = 3;element[11] = 1;
781 element[12] = 0;element[13] = 2;element[14] = 4;
782 element[15] = 2;element[16] = 1;element[17] = 4;
783 element[18] = 3;element[19] = 0;element[20] = 4;
784 element[21] = 1;element[22] = 3;element[23] = 4;
785 varray_vertex[ 0] = -16;varray_vertex[ 1] = 0;varray_vertex[ 2] = 0;
786 varray_vertex[ 4] = 16;varray_vertex[ 5] = 0;varray_vertex[ 6] = 0;
787 varray_vertex[ 8] = 0;varray_vertex[ 9] = -16;varray_vertex[10] = 0;
788 varray_vertex[12] = 0;varray_vertex[13] = 16;varray_vertex[14] = 0;
789 varray_vertex[16] = 0;varray_vertex[17] = 0;varray_vertex[18] = -16;
790 varray_vertex[20] = 0;varray_vertex[21] = 0;varray_vertex[22] = 16;
791 varray_color[ 0] = 0.00f;varray_color[ 1] = 0.00f;varray_color[ 2] = 0.50f;varray_color[ 3] = ent->alpha;
792 varray_color[ 4] = 0.00f;varray_color[ 5] = 0.00f;varray_color[ 6] = 0.50f;varray_color[ 7] = ent->alpha;
793 varray_color[ 8] = 0.00f;varray_color[ 9] = 0.50f;varray_color[10] = 0.00f;varray_color[11] = ent->alpha;
794 varray_color[12] = 0.00f;varray_color[13] = 0.50f;varray_color[14] = 0.00f;varray_color[15] = ent->alpha;
795 varray_color[16] = 0.50f;varray_color[17] = 0.00f;varray_color[18] = 0.00f;varray_color[19] = ent->alpha;
796 varray_color[20] = 0.50f;varray_color[21] = 0.00f;varray_color[22] = 0.00f;varray_color[23] = ent->alpha;
799 VectorSubtract(ent->origin, r_origin, diff);
800 f2 = exp(fogdensity/DotProduct(diff, diff));
802 for (i = 0, c = varray_color;i < 6;i++, c += 4)
804 c[0] = (c[0] * f1 + fogcolor[0] * f2) * mesh_colorscale;
805 c[1] = (c[1] * f1 + fogcolor[1] * f2) * mesh_colorscale;
806 c[2] = (c[2] * f1 + fogcolor[2] * f2) * mesh_colorscale;
811 for (i = 0, c = varray_color;i < 6;i++, c += 4)
813 c[0] *= mesh_colorscale;
814 c[1] *= mesh_colorscale;
815 c[2] *= mesh_colorscale;
818 R_Mesh_Draw(6, 8, element);
821 void R_DrawNoModel(entity_render_t *ent)
823 //if ((ent->effects & EF_ADDITIVE) || (ent->alpha < 1))
824 R_MeshQueue_AddTransparent(ent->origin, R_DrawNoModelCallback, ent, 0);
826 // R_DrawNoModelCallback(ent, 0);