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.
27 extern float ixtable[4096];
30 extern void FOG_clear(void);
34 extern cvar_t r_skyscroll1;
35 extern cvar_t r_skyscroll2;
36 extern int skyrenderlater, skyrendermasked;
37 extern int R_SetSkyBox(const char *sky);
38 extern void R_SkyStartFrame(void);
39 extern void R_Sky(void);
40 extern void R_ResetSkyBox(void);
42 // SHOWLMP stuff (Nehahra)
43 extern void SHOWLMP_decodehide(void);
44 extern void SHOWLMP_decodeshow(void);
45 extern void SHOWLMP_drawall(void);
47 // render profiling stuff
48 extern int r_timereport_active;
51 extern cvar_t r_ambient;
52 extern cvar_t gl_flashblend;
55 extern cvar_t r_novis;
57 extern cvar_t r_lerpsprites;
58 extern cvar_t r_lerpmodels;
59 extern cvar_t r_lerplightstyles;
60 extern cvar_t r_waterscroll;
62 extern cvar_t developer_texturelogging;
64 // shadow volume bsp struct with automatically growing nodes buffer
65 extern svbsp_t r_svbsp;
67 typedef struct rmesh_s
69 // vertices of this mesh
77 float *texcoordlightmap2f;
79 // triangles of this mesh
89 // useful functions for rendering
90 void R_ModulateColors(float *in, float *out, int verts, float r, float g, float b);
91 void R_FillColors(float *out, int verts, float r, float g, float b, float a);
92 int R_Mesh_AddVertex3f(rmesh_t *mesh, const float *v);
93 void R_Mesh_AddPolygon3f(rmesh_t *mesh, int numvertices, float *vertex3f);
94 void R_Mesh_AddBrushMeshFromPlanes(rmesh_t *mesh, int numplanes, mplane_t *planes);
96 #define TOP_RANGE 16 // soldier uniform colors
97 #define BOTTOM_RANGE 96
99 //=============================================================================
101 extern cvar_t r_nearclip;
103 // forces all rendering to draw triangle outlines
104 extern cvar_t r_showtris;
105 extern cvar_t r_shownormals;
106 extern cvar_t r_showlighting;
107 extern cvar_t r_showshadowvolumes;
108 extern cvar_t r_showcollisionbrushes;
109 extern cvar_t r_showcollisionbrushes_polygonfactor;
110 extern cvar_t r_showcollisionbrushes_polygonoffset;
111 extern cvar_t r_showdisabledepthtest;
116 extern cvar_t r_drawentities;
117 extern cvar_t r_draw2d;
118 extern qboolean r_draw2d_force;
119 extern cvar_t r_drawviewmodel;
120 extern cvar_t r_drawworld;
121 extern cvar_t r_speeds;
122 extern cvar_t r_fullbright;
123 extern cvar_t r_wateralpha;
124 extern cvar_t r_dynamic;
127 void R_UpdateVariables(void); // must call after setting up most of r_refdef, but before calling R_RenderView
128 void R_RenderView(void); // must set r_refdef and call R_UpdateVariables first
130 typedef enum r_refdef_scene_type_s {
134 } r_refdef_scene_type_t;
136 void R_SelectScene( r_refdef_scene_type_t scenetype );
137 r_refdef_scene_t * R_GetScenePointer( r_refdef_scene_type_t scenetype );
139 void R_SkinFrame_PrepareForPurge(void);
140 void R_SkinFrame_MarkUsed(skinframe_t *skinframe);
141 void R_SkinFrame_Purge(void);
142 // set last to NULL to start from the beginning
143 skinframe_t *R_SkinFrame_FindNextByName( skinframe_t *last, const char *name );
144 skinframe_t *R_SkinFrame_Find(const char *name, int textureflags, int comparewidth, int compareheight, int comparecrc, qboolean add);
145 skinframe_t *R_SkinFrame_LoadExternal(const char *name, int textureflags, qboolean complain);
146 skinframe_t *R_SkinFrame_LoadInternalBGRA(const char *name, int textureflags, const unsigned char *skindata, int width, int height);
147 skinframe_t *R_SkinFrame_LoadInternalQuake(const char *name, int textureflags, int loadpantsandshirt, int loadglowtexture, const unsigned char *skindata, int width, int height);
148 skinframe_t *R_SkinFrame_LoadInternal8bit(const char *name, int textureflags, const unsigned char *skindata, int width, int height, const unsigned int *palette, const unsigned int *alphapalette);
149 skinframe_t *R_SkinFrame_LoadMissing(void);
151 rtexture_t *R_GetCubemap(const char *basename);
153 void R_View_WorldVisibility(qboolean forcenovis);
154 void R_DrawDecals(void);
155 void R_DrawParticles(void);
156 void R_DrawExplosions(void);
158 #define gl_solid_format 3
159 #define gl_alpha_format 4
161 int R_CullBox(const vec3_t mins, const vec3_t maxs);
162 int R_CullBoxCustomPlanes(const vec3_t mins, const vec3_t maxs, int numplanes, const mplane_t *planes);
164 #include "r_modules.h"
166 #include "meshqueue.h"
168 void R_FrameData_Reset(void);
169 void R_FrameData_NewFrame(void);
170 void *R_FrameData_Alloc(size_t size);
171 void *R_FrameData_Store(size_t size, void *data);
172 void R_FrameData_SetMark(void);
173 void R_FrameData_ReturnToMark(void);
175 void R_AnimCache_Free(void);
176 void R_AnimCache_ClearCache(void);
177 qboolean R_AnimCache_GetEntity(entity_render_t *ent, qboolean wantnormals, qboolean wanttangents);
178 void R_AnimCache_CacheVisibleEntities(void);
180 #include "r_lerpanim.h"
182 extern cvar_t r_render;
183 extern cvar_t r_renderview;
184 extern cvar_t r_waterwarp;
186 extern cvar_t r_textureunits;
188 extern cvar_t r_glsl_offsetmapping;
189 extern cvar_t r_glsl_offsetmapping_reliefmapping;
190 extern cvar_t r_glsl_offsetmapping_scale;
191 extern cvar_t r_glsl_deluxemapping;
193 extern cvar_t gl_polyblend;
194 extern cvar_t gl_dither;
196 extern cvar_t cl_deathfade;
198 extern cvar_t r_smoothnormals_areaweighting;
200 extern cvar_t r_test;
202 extern cvar_t r_texture_convertsRGB_2d;
203 extern cvar_t r_texture_convertsRGB_skin;
204 extern cvar_t r_texture_convertsRGB_cubemap;
205 extern cvar_t r_texture_convertsRGB_skybox;
206 extern cvar_t r_texture_convertsRGB_particles;
208 #include "gl_backend.h"
210 extern rtexture_t *r_texture_blanknormalmap;
211 extern rtexture_t *r_texture_white;
212 extern rtexture_t *r_texture_grey128;
213 extern rtexture_t *r_texture_black;
214 extern rtexture_t *r_texture_notexture;
215 extern rtexture_t *r_texture_whitecube;
216 extern rtexture_t *r_texture_normalizationcube;
217 extern rtexture_t *r_texture_fogattenuation;
218 extern rtexture_t *r_texture_fogheighttexture;
220 extern unsigned int r_queries[MAX_OCCLUSION_QUERIES];
221 extern unsigned int r_numqueries;
222 extern unsigned int r_maxqueries;
224 void R_TimeReport(const char *name);
227 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);
229 void R_CalcBeam_Vertex3f(float *vert, const vec3_t org1, const vec3_t org2, float width);
230 void R_CalcSprite_Vertex3f(float *vertex3f, const vec3_t origin, const vec3_t left, const vec3_t up, float scalex1, float scalex2, float scaley1, float scaley2);
232 extern mempool_t *r_main_mempool;
234 typedef struct rsurfacestate_s
236 // current model array pointers
237 // these may point to processing buffers if model is animated,
238 // otherwise they point to static data.
239 // these are not directly used for rendering, they are just another level
242 // these either point at array_model* buffers (if the model is animated)
243 // or the model->surfmesh.data_* buffers (if the model is not animated)
245 // these are only set when an entity render begins, they do not change on
246 // a per surface basis.
248 // this indicates the model* arrays are pointed at array_model* buffers
249 // (in other words, the model has been animated in software)
250 qboolean modelgeneratedvertex;
251 float *modelvertex3f;
252 const r_meshbuffer_t *modelvertex3f_vertexbuffer;
253 size_t modelvertex3f_bufferoffset;
254 float *modelsvector3f;
255 const r_meshbuffer_t *modelsvector3f_vertexbuffer;
256 size_t modelsvector3f_bufferoffset;
257 float *modeltvector3f;
258 const r_meshbuffer_t *modeltvector3f_vertexbuffer;
259 size_t modeltvector3f_bufferoffset;
260 float *modelnormal3f;
261 const r_meshbuffer_t *modelnormal3f_vertexbuffer;
262 size_t modelnormal3f_bufferoffset;
263 float *modellightmapcolor4f;
264 const r_meshbuffer_t *modellightmapcolor4f_vertexbuffer;
265 size_t modellightmapcolor4f_bufferoffset;
266 float *modeltexcoordtexture2f;
267 const r_meshbuffer_t *modeltexcoordtexture2f_vertexbuffer;
268 size_t modeltexcoordtexture2f_bufferoffset;
269 float *modeltexcoordlightmap2f;
270 const r_meshbuffer_t *modeltexcoordlightmap2f_vertexbuffer;
271 size_t modeltexcoordlightmap2f_bufferoffset;
272 r_vertexmesh_t *modelvertexmesh;
273 const r_meshbuffer_t *modelvertexmeshbuffer;
274 const r_meshbuffer_t *modelvertex3fbuffer;
276 const r_meshbuffer_t *modelelement3i_indexbuffer;
277 size_t modelelement3i_bufferoffset;
278 unsigned short *modelelement3s;
279 const r_meshbuffer_t *modelelement3s_indexbuffer;
280 size_t modelelement3s_bufferoffset;
281 int *modellightmapoffsets;
282 int modelnumvertices;
283 int modelnumtriangles;
284 const msurface_t *modelsurfaces;
285 // current rendering array pointers
286 // these may point to any of several different buffers depending on how
287 // much processing was needed to prepare this model for rendering
288 // these usually equal the model* pointers, they only differ if
289 // deformvertexes is used in a q3 shader, and consequently these can
290 // change on a per-surface basis (according to rsurface.texture)
291 qboolean batchgeneratedvertex;
292 int batchfirstvertex;
293 int batchnumvertices;
294 int batchfirsttriangle;
295 int batchnumtriangles;
296 r_vertexmesh_t *batchvertexmesh;
297 const r_meshbuffer_t *batchvertexmeshbuffer;
298 const r_meshbuffer_t *batchvertex3fbuffer;
299 float *batchvertex3f;
300 const r_meshbuffer_t *batchvertex3f_vertexbuffer;
301 size_t batchvertex3f_bufferoffset;
302 float *batchsvector3f;
303 const r_meshbuffer_t *batchsvector3f_vertexbuffer;
304 size_t batchsvector3f_bufferoffset;
305 float *batchtvector3f;
306 const r_meshbuffer_t *batchtvector3f_vertexbuffer;
307 size_t batchtvector3f_bufferoffset;
308 float *batchnormal3f;
309 const r_meshbuffer_t *batchnormal3f_vertexbuffer;
310 size_t batchnormal3f_bufferoffset;
311 float *batchlightmapcolor4f;
312 const r_meshbuffer_t *batchlightmapcolor4f_vertexbuffer;
313 size_t batchlightmapcolor4f_bufferoffset;
314 float *batchtexcoordtexture2f;
315 const r_meshbuffer_t *batchtexcoordtexture2f_vertexbuffer;
316 size_t batchtexcoordtexture2f_bufferoffset;
317 float *batchtexcoordlightmap2f;
318 const r_meshbuffer_t *batchtexcoordlightmap2f_vertexbuffer;
319 size_t batchtexcoordlightmap2f_bufferoffset;
321 const r_meshbuffer_t *batchelement3i_indexbuffer;
322 size_t batchelement3i_bufferoffset;
323 unsigned short *batchelement3s;
324 const r_meshbuffer_t *batchelement3s_indexbuffer;
325 size_t batchelement3s_bufferoffset;
326 // rendering pass processing arrays in GL11 and GL13 paths
328 const r_meshbuffer_t *passcolor4f_vertexbuffer;
329 size_t passcolor4f_bufferoffset;
331 // some important fields from the entity
335 float ent_shadertime;
336 int ent_alttextures; // used by q1bsp animated textures (pressed buttons)
337 // transform matrices to render this entity and effects on this entity
339 matrix4x4_t inversematrix;
340 // scale factors for transforming lengths into/out of entity space
342 float inversematrixscale;
343 // animation blending state from entity
344 frameblend_t frameblend[MAX_FRAMEBLENDS];
345 skeleton_t *skeleton;
346 // directional model shading state from entity
347 vec3_t modellight_ambient;
348 vec3_t modellight_diffuse;
349 vec3_t modellight_lightdir;
350 // colormapping state from entity (these are black if colormapping is off)
351 vec3_t colormap_pantscolor;
352 vec3_t colormap_shirtcolor;
353 // special coloring of ambient/diffuse textures (gloss not affected)
354 // colormod[3] is the alpha of the entity
356 // special coloring of glow textures
358 // view location in model space
359 vec3_t localvieworigin;
360 // polygon offset data for submodels
361 float basepolygonfactor;
362 float basepolygonoffset;
363 // current textures in batching code
365 rtexture_t *lightmaptexture;
366 rtexture_t *deluxemaptexture;
367 // whether lightmapping is active on this batch
368 // (otherwise vertex colored)
369 qboolean uselightmaptexture;
370 // fog plane in model space for direct application to vertices
372 float fogmasktabledistmultiplier;
375 float fogplaneviewdist;
378 // light currently being rendered
379 const rtlight_t *rtlight;
381 // this is the location of the light in entity space
382 vec3_t entitylightorigin;
383 // this transforms entity coordinates to light filter cubemap coordinates
384 // (also often used for other purposes)
385 matrix4x4_t entitytolight;
386 // based on entitytolight this transforms -1 to +1 to 0 to 1 for purposes
387 // of attenuation texturing in full 3D (Z result often ignored)
388 matrix4x4_t entitytoattenuationxyz;
389 // this transforms only the Z to S, and T is always 0.5
390 matrix4x4_t entitytoattenuationz;
392 // user wavefunc parameters (from csqc)
393 float userwavefunc_param[Q3WAVEFUNC_USER_COUNT];
395 // pointer to an entity_render_t used only by R_GetCurrentTexture and
396 // RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity as a unique id within
397 // each frame (see r_frame also)
398 entity_render_t *entity;
402 extern rsurfacestate_t rsurface;
404 void R_HDR_UpdateIrisAdaptation(const vec3_t point);
406 void RSurf_ActiveWorldEntity(void);
407 void RSurf_ActiveModelEntity(const entity_render_t *ent, qboolean wantnormals, qboolean wanttangents, qboolean prepass);
408 void RSurf_ActiveCustomEntity(const matrix4x4_t *matrix, const matrix4x4_t *inversematrix, int entflags, double shadertime, float r, float g, float b, float a, int numvertices, const float *vertex3f, const float *texcoord2f, const float *normal3f, const float *svector3f, const float *tvector3f, const float *color4f, int numtriangles, const int *element3i, const unsigned short *element3s, qboolean wantnormals, qboolean wanttangents);
409 void RSurf_SetupDepthAndCulling(void);
411 void R_Mesh_ResizeArrays(int newvertices);
413 texture_t *R_GetCurrentTexture(texture_t *t);
414 void R_DrawWorldSurfaces(qboolean skysurfaces, qboolean writedepth, qboolean depthonly, qboolean debug, qboolean prepass);
415 void R_DrawModelSurfaces(entity_render_t *ent, qboolean skysurfaces, qboolean writedepth, qboolean depthonly, qboolean debug, qboolean prepass);
416 void R_AddWaterPlanes(entity_render_t *ent);
417 void R_DrawCustomSurface(skinframe_t *skinframe, const matrix4x4_t *texmatrix, int materialflags, int firstvertex, int numvertices, int firsttriangle, int numtriangles, qboolean writedepth, qboolean prepass);
418 void R_DrawCustomSurface_Texture(texture_t *texture, const matrix4x4_t *texmatrix, int materialflags, int firstvertex, int numvertices, int firsttriangle, int numtriangles, qboolean writedepth, qboolean prepass);
420 #define BATCHNEED_VERTEXMESH_VERTEX (1<< 1) // set up rsurface.batchvertexmesh
421 #define BATCHNEED_VERTEXMESH_NORMAL (1<< 2) // set up normals in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchnormal3f if BATCHNEED_ARRAYS
422 #define BATCHNEED_VERTEXMESH_VECTOR (1<< 3) // set up vectors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchsvector3f and rsurface.batchtvector3f if BATCHNEED_ARRAYS
423 #define BATCHNEED_VERTEXMESH_VERTEXCOLOR (1<< 4) // set up vertex colors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchlightmapcolor4f if BATCHNEED_ARRAYS
424 #define BATCHNEED_VERTEXMESH_TEXCOORD (1<< 5) // set up vertex colors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchlightmapcolor4f if BATCHNEED_ARRAYS
425 #define BATCHNEED_VERTEXMESH_LIGHTMAP (1<< 6) // set up vertex colors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchlightmapcolor4f if BATCHNEED_ARRAYS
426 #define BATCHNEED_ARRAY_VERTEX (1<< 7) // set up rsurface.batchvertex3f and optionally others
427 #define BATCHNEED_ARRAY_NORMAL (1<< 8) // set up normals in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchnormal3f if BATCHNEED_ARRAYS
428 #define BATCHNEED_ARRAY_VECTOR (1<< 9) // set up vectors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchsvector3f and rsurface.batchtvector3f if BATCHNEED_ARRAYS
429 #define BATCHNEED_ARRAY_VERTEXCOLOR (1<<10) // set up vertex colors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchlightmapcolor4f if BATCHNEED_ARRAYS
430 #define BATCHNEED_ARRAY_TEXCOORD (1<<11) // set up vertex colors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchlightmapcolor4f if BATCHNEED_ARRAYS
431 #define BATCHNEED_ARRAY_LIGHTMAP (1<<12) // set up vertex colors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchlightmapcolor4f if BATCHNEED_ARRAYS
432 #define BATCHNEED_NOGAPS (1<<13) // force vertex copying (no gaps)
433 void RSurf_PrepareVerticesForBatch(int batchneed, int texturenumsurfaces, const msurface_t **texturesurfacelist);
434 void RSurf_DrawBatch(void);
436 void R_DecalSystem_SplatEntities(const vec3_t org, const vec3_t normal, float r, float g, float b, float a, float s1, float t1, float s2, float t2, float size);
438 typedef enum rsurfacepass_e
441 RSURFPASS_BACKGROUND,
443 RSURFPASS_DEFERREDGEOMETRY
447 void R_SetupShader_Generic(rtexture_t *first, rtexture_t *second, int texturemode, int rgbscale);
448 void R_SetupShader_DepthOrShadow(void);
449 void R_SetupShader_ShowDepth(void);
450 void R_SetupShader_Surface(const vec3_t lightcolorbase, qboolean modellighting, float ambientscale, float diffusescale, float specularscale, rsurfacepass_t rsurfacepass, int texturenumsurfaces, const msurface_t **texturesurfacelist, void *waterplane);
451 void R_SetupShader_DeferredLight(const rtlight_t *rtlight);
452 void R_SetupShader_DeferredBounceLight(void);
454 typedef struct r_waterstate_waterplane_s
456 rtexture_t *texture_refraction;
457 rtexture_t *texture_reflection;
458 rtexture_t *texture_camera;
460 int materialflags; // combined flags of all water surfaces on this plane
461 unsigned char pvsbits[(MAX_MAP_LEAFS+7)>>3]; // FIXME: buffer overflow on huge maps
466 r_waterstate_waterplane_t;
468 typedef struct r_waterstate_s
472 qboolean renderingscene; // true while rendering a refraction or reflection texture, disables water surfaces
473 qboolean renderingrefraction;
475 int waterwidth, waterheight;
476 int texturewidth, textureheight;
477 int camerawidth, cameraheight;
479 int maxwaterplanes; // same as MAX_WATERPLANES
481 r_waterstate_waterplane_t waterplanes[MAX_WATERPLANES];
483 float screenscale[2];
484 float screencenter[2];
488 extern r_waterstate_t r_waterstate;