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 extern qbyte r_pvsbits[(MAX_MAP_LEAFS+7)>>3];
26 extern matrix4x4_t r_identitymatrix;
29 extern float ixtable[4096];
31 // far clip distance for scene
32 extern float r_farclip;
35 extern void FOG_clear(void);
36 extern float fog_density, fog_red, fog_green, fog_blue;
40 extern cvar_t r_skyscroll1;
41 extern cvar_t r_skyscroll2;
42 extern int skyrendernow, skyrendermasked;
43 extern int R_SetSkyBox(const char *sky);
44 extern void R_SkyStartFrame(void);
45 extern void R_Sky(void);
46 extern void R_ResetQuakeSky(void);
47 extern void R_ResetSkyBox(void);
49 // SHOWLMP stuff (Nehahra)
50 extern void SHOWLMP_decodehide(void);
51 extern void SHOWLMP_decodeshow(void);
52 extern void SHOWLMP_drawall(void);
53 extern void SHOWLMP_clear(void);
55 // render profiling stuff
56 extern qboolean intimerefresh;
57 extern char r_speeds_string[1024];
60 extern cvar_t r_ambient;
62 // model rendering stuff
63 extern float *aliasvert;
64 extern float *aliasvertnorm;
65 extern float *aliasvertcolor;
68 extern cvar_t r_novis;
70 // detail texture stuff
71 extern cvar_t r_detailtextures;
73 extern cvar_t r_lerpsprites;
74 extern cvar_t r_lerpmodels;
75 extern cvar_t r_waterscroll;
76 extern cvar_t r_watershader;
78 // useful functions for rendering
79 void R_ModulateColors(float *in, float *out, int verts, float r, float g, float b);
80 void R_FillColors(float *out, int verts, float r, float g, float b, float a);
82 #define TOP_RANGE 16 // soldier uniform colors
83 #define BOTTOM_RANGE 96
85 //=============================================================================
87 extern int r_framecount;
88 extern mplane_t frustum[4];
89 extern int c_alias_polys, c_light_polys, c_faces, c_nodes, c_leafs, c_models, c_bmodels, c_sprites, c_particles, c_dlights;
91 // forces all rendering to draw triangle outlines
92 extern cvar_t r_showtris;
93 extern int r_showtrispass;
98 extern vec3_t r_vieworigin;
99 extern vec3_t r_viewforward;
100 extern vec3_t r_viewleft;
101 extern vec3_t r_viewright;
102 extern vec3_t r_viewup;
106 extern int r_view_width;
107 extern int r_view_height;
108 extern int r_view_depth;
109 extern float r_view_fov_x;
110 extern float r_view_fov_y;
111 extern matrix4x4_t r_view_matrix;
113 extern mleaf_t *r_viewleaf, *r_oldviewleaf;
114 extern unsigned short d_lightstylevalue[256]; // 8.8 fraction of base light value
116 extern qboolean envmap;
118 extern cvar_t r_drawentities;
119 extern cvar_t r_drawviewmodel;
120 extern cvar_t r_speeds;
121 extern cvar_t r_fullbright;
122 extern cvar_t r_wateralpha;
123 extern cvar_t r_dynamic;
124 extern cvar_t r_drawcollisionbrushes;
127 void R_UpdateWorld(void); // needs no r_refdef
128 void R_RenderView(void); // must call R_UpdateWorld and set r_refdef first
131 void R_InitSky (qbyte *src, int bytesperpixel); // called at level load
133 void R_WorldVisibility(entity_render_t *ent);
134 void R_DrawWorld(entity_render_t *ent);
135 void R_DrawParticles(void);
136 void R_DrawExplosions(void);
138 #define gl_solid_format 3
139 #define gl_alpha_format 4
143 int R_CullBox(const vec3_t mins, const vec3_t maxs);
144 #define VIS_CullBox(mins,maxs) (R_CullBox((mins), (maxs)) || (cl.worldmodel && cl.worldmodel->brush.BoxTouchingPVS && !cl.worldmodel->brush.BoxTouchingPVS(cl.worldmodel, r_pvsbits, (mins), (maxs))))
146 extern qboolean fogenabled;
147 extern vec3_t fogcolor;
148 extern vec_t fogdensity;
149 #define calcfog(v) (exp(-(fogdensity*fogdensity*(((v)[0] - r_vieworigin[0])*((v)[0] - r_vieworigin[0])+((v)[1] - r_vieworigin[1])*((v)[1] - r_vieworigin[1])+((v)[2] - r_vieworigin[2])*((v)[2] - r_vieworigin[2])))))
150 #define calcfogbyte(v) ((qbyte) (bound(0, ((int) ((float) (calcfog((v)) * 255.0f))), 255)))
152 #include "r_modules.h"
154 #include "meshqueue.h"
156 #include "r_lerpanim.h"
158 extern cvar_t r_render;
159 extern cvar_t r_waterwarp;
161 extern cvar_t r_textureunits;
162 extern cvar_t gl_polyblend;
163 extern cvar_t gl_dither;
165 #include "gl_backend.h"
169 void R_TimeReport(char *name);
170 void R_TimeReport_Start(void);
171 void R_TimeReport_End(void);
174 void R_Stain(const vec3_t origin, float radius, int cr1, int cg1, int cb1, int ca1, int cr2, int cg2, int cb2, int ca2);
176 void R_DrawWorldCrosshair(void);
177 void R_Draw2DCrosshair(void);
179 void R_CalcBeam_Vertex3f(float *vert, const vec3_t org1, const vec3_t org2, float width);
180 void R_DrawSprite(int blendfunc1, int blendfunc2, rtexture_t *texture, int depthdisable, const vec3_t origin, const vec3_t left, const vec3_t up, float scalex1, float scalex2, float scaley1, float scaley2, float cr, float cg, float cb, float ca);