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 // flag arrays used for visibility checking on world model
25 // (all other entities have no per-surface/per-leaf visibility checks)
26 // TODO: dynamic resize according to r_refdef.worldmodel->brush.num_clusters
27 qbyte r_pvsbits[(32768+7)>>3];
28 // TODO: dynamic resize according to r_refdef.worldmodel->brush.num_leafs
29 qbyte r_worldleafvisible[32768];
30 // TODO: dynamic resize according to r_refdef.worldmodel->num_surfaces
31 qbyte r_worldsurfacevisible[262144];
33 extern matrix4x4_t r_identitymatrix;
36 extern float ixtable[4096];
38 // far clip distance for scene
39 extern float r_farclip;
42 extern void FOG_clear(void);
43 extern float fog_density, fog_red, fog_green, fog_blue;
47 extern cvar_t r_skyscroll1;
48 extern cvar_t r_skyscroll2;
49 extern int skyrendernow, skyrendermasked;
50 extern int R_SetSkyBox(const char *sky);
51 extern void R_SkyStartFrame(void);
52 extern void R_Sky(void);
53 extern void R_ResetSkyBox(void);
55 // SHOWLMP stuff (Nehahra)
56 extern void SHOWLMP_decodehide(void);
57 extern void SHOWLMP_decodeshow(void);
58 extern void SHOWLMP_drawall(void);
59 extern void SHOWLMP_clear(void);
61 // render profiling stuff
62 extern char r_speeds_string[1024];
65 extern cvar_t r_ambient;
66 extern cvar_t gl_flashblend;
69 extern cvar_t r_novis;
71 extern cvar_t r_lerpsprites;
72 extern cvar_t r_lerpmodels;
73 extern cvar_t r_waterscroll;
75 extern cvar_t developer_texturelogging;
77 typedef struct rmesh_s
79 // vertices of this mesh
87 float *texcoordlightmap2f;
89 // triangles of this mesh
99 // useful functions for rendering
100 void R_ModulateColors(float *in, float *out, int verts, float r, float g, float b);
101 void R_FillColors(float *out, int verts, float r, float g, float b, float a);
102 int R_Mesh_AddVertex3f(rmesh_t *mesh, const float *v);
103 void R_Mesh_AddPolygon3f(rmesh_t *mesh, int numvertices, float *vertex3f);
104 void R_Mesh_AddBrushMeshFromPlanes(rmesh_t *mesh, int numplanes, mplane_t *planes);
106 #define TOP_RANGE 16 // soldier uniform colors
107 #define BOTTOM_RANGE 96
109 //=============================================================================
111 extern int r_framecount;
112 extern mplane_t frustum[5];
114 extern int c_alias_polys, c_light_polys, c_faces, c_nodes, c_leafs, c_models, c_bmodels, c_sprites, c_particles, c_dlights, c_meshs, c_meshelements, c_rt_lights, c_rt_clears, c_rt_scissored, c_rt_shadowmeshes, c_rt_shadowtris, c_rt_lightmeshes, c_rt_lighttris, c_rtcached_shadowmeshes, c_rtcached_shadowtris, c_bloom, c_bloomcopies, c_bloomcopypixels, c_bloomdraws, c_bloomdrawpixels;
116 // brightness of world lightmaps and related lighting
117 // (often reduced when world rtlights are enabled)
118 extern float r_lightmapintensity;
119 // whether to draw world lights realtime, dlights realtime, and their shadows
120 extern qboolean r_rtworld;
121 extern qboolean r_rtworldshadows;
122 extern qboolean r_rtdlight;
123 extern qboolean r_rtdlightshadows;
125 // forces all rendering to draw triangle outlines
126 extern cvar_t r_showtris;
127 extern int r_showtrispass;
132 extern vec3_t r_vieworigin;
133 extern vec3_t r_viewforward;
134 extern vec3_t r_viewleft;
135 extern vec3_t r_viewright;
136 extern vec3_t r_viewup;
140 extern int r_view_width;
141 extern int r_view_height;
142 extern int r_view_depth;
143 extern float r_view_fov_x;
144 extern float r_view_fov_y;
145 extern matrix4x4_t r_view_matrix;
147 extern mleaf_t *r_viewleaf, *r_oldviewleaf;
148 extern unsigned short d_lightstylevalue[256]; // 8.8 fraction of base light value
150 extern qboolean envmap;
152 extern cvar_t r_drawentities;
153 extern cvar_t r_drawviewmodel;
154 extern cvar_t r_speeds;
155 extern cvar_t r_fullbright;
156 extern cvar_t r_wateralpha;
157 extern cvar_t r_dynamic;
158 extern cvar_t r_drawcollisionbrushes;
161 void R_UpdateWorld(void); // needs no r_refdef
162 void R_RenderView(void); // must call R_UpdateWorld and set r_refdef first
165 void R_InitSky (qbyte *src, int bytesperpixel); // called at level load
167 void R_WorldVisibility();
168 void R_DrawParticles(void);
169 void R_DrawExplosions(void);
171 #define gl_solid_format 3
172 #define gl_alpha_format 4
174 int R_CullBox(const vec3_t mins, const vec3_t maxs);
176 extern qboolean fogenabled;
177 extern vec3_t fogcolor;
178 extern vec_t fogdensity;
179 #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])))))
180 #define calcfogbyte(v) ((qbyte) (bound(0, ((int) ((float) (calcfog((v)) * 255.0f))), 255)))
182 #include "r_modules.h"
184 #include "meshqueue.h"
186 #include "r_lerpanim.h"
188 extern cvar_t r_render;
189 extern cvar_t r_waterwarp;
191 extern cvar_t r_textureunits;
192 extern cvar_t gl_polyblend;
193 extern cvar_t gl_dither;
195 extern cvar_t r_smoothnormals_areaweighting;
197 #include "gl_backend.h"
201 extern rtexture_t *r_texture_blanknormalmap;
202 extern rtexture_t *r_texture_white;
203 extern rtexture_t *r_texture_black;
204 extern rtexture_t *r_texture_notexture;
205 extern rtexture_t *r_texture_whitecube;
206 extern rtexture_t *r_texture_normalizationcube;
208 void R_TimeReport(char *name);
209 void R_TimeReport_Start(void);
210 void R_TimeReport_End(void);
213 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);
215 void R_DrawWorldCrosshair(void);
216 void R_Draw2DCrosshair(void);
218 void R_CalcBeam_Vertex3f(float *vert, const vec3_t org1, const vec3_t org2, float width);
219 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);
221 struct entity_render_s;
224 void R_UpdateTextureInfo(const entity_render_t *ent, texture_t *t);
225 void R_UpdateAllTextureInfo(entity_render_t *ent);
226 void R_QueueTextureSurfaceList(entity_render_t *ent, struct texture_s *texture, int texturenumsurfaces, const struct msurface_s **texturesurfacelist, const vec3_t modelorg);
227 void R_DrawSurfaces(entity_render_t *ent, qboolean skysurfaces);