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_trippy;
59 extern cvar_t r_lerpsprites;
60 extern cvar_t r_lerpmodels;
61 extern cvar_t r_lerplightstyles;
62 extern cvar_t r_waterscroll;
64 extern cvar_t developer_texturelogging;
66 // shadow volume bsp struct with automatically growing nodes buffer
67 extern svbsp_t r_svbsp;
69 typedef struct rmesh_s
71 // vertices of this mesh
79 float *texcoordlightmap2f;
81 // triangles of this mesh
91 // useful functions for rendering
92 void R_ModulateColors(float *in, float *out, int verts, float r, float g, float b);
93 void R_FillColors(float *out, int verts, float r, float g, float b, float a);
94 int R_Mesh_AddVertex3f(rmesh_t *mesh, const float *v);
95 void R_Mesh_AddPolygon3f(rmesh_t *mesh, int numvertices, float *vertex3f);
96 void R_Mesh_AddBrushMeshFromPlanes(rmesh_t *mesh, int numplanes, mplane_t *planes);
98 #define TOP_RANGE 16 // soldier uniform colors
99 #define BOTTOM_RANGE 96
101 //=============================================================================
103 extern cvar_t r_nearclip;
105 // forces all rendering to draw triangle outlines
106 extern cvar_t r_showoverdraw;
107 extern cvar_t r_showtris;
108 extern cvar_t r_shownormals;
109 extern cvar_t r_showlighting;
110 extern cvar_t r_showshadowvolumes;
111 extern cvar_t r_showcollisionbrushes;
112 extern cvar_t r_showcollisionbrushes_polygonfactor;
113 extern cvar_t r_showcollisionbrushes_polygonoffset;
114 extern cvar_t r_showdisabledepthtest;
119 extern cvar_t r_drawentities;
120 extern cvar_t r_draw2d;
121 extern qboolean r_draw2d_force;
122 extern cvar_t r_drawviewmodel;
123 extern cvar_t r_drawworld;
124 extern cvar_t r_speeds;
125 extern cvar_t r_fullbright;
126 extern cvar_t r_wateralpha;
127 extern cvar_t r_dynamic;
130 void R_UpdateVariables(void); // must call after setting up most of r_refdef, but before calling R_RenderView
131 void R_RenderView(void); // must set r_refdef and call R_UpdateVariables first
133 typedef enum r_refdef_scene_type_s {
137 } r_refdef_scene_type_t;
139 void R_SelectScene( r_refdef_scene_type_t scenetype );
140 r_refdef_scene_t * R_GetScenePointer( r_refdef_scene_type_t scenetype );
142 void R_SkinFrame_PrepareForPurge(void);
143 void R_SkinFrame_MarkUsed(skinframe_t *skinframe);
144 void R_SkinFrame_Purge(void);
145 // set last to NULL to start from the beginning
146 skinframe_t *R_SkinFrame_FindNextByName( skinframe_t *last, const char *name );
147 skinframe_t *R_SkinFrame_Find(const char *name, int textureflags, int comparewidth, int compareheight, int comparecrc, qboolean add);
148 skinframe_t *R_SkinFrame_LoadExternal(const char *name, int textureflags, qboolean complain);
149 skinframe_t *R_SkinFrame_LoadInternalBGRA(const char *name, int textureflags, const unsigned char *skindata, int width, int height, qboolean sRGB);
150 skinframe_t *R_SkinFrame_LoadInternalQuake(const char *name, int textureflags, int loadpantsandshirt, int loadglowtexture, const unsigned char *skindata, int width, int height);
151 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);
152 skinframe_t *R_SkinFrame_LoadMissing(void);
154 rtexture_t *R_GetCubemap(const char *basename);
156 void R_View_WorldVisibility(qboolean forcenovis);
157 void R_DrawDecals(void);
158 void R_DrawParticles(void);
159 void R_DrawExplosions(void);
161 #define gl_solid_format 3
162 #define gl_alpha_format 4
164 int R_CullBox(const vec3_t mins, const vec3_t maxs);
165 int R_CullBoxCustomPlanes(const vec3_t mins, const vec3_t maxs, int numplanes, const mplane_t *planes);
167 #include "r_modules.h"
169 #include "meshqueue.h"
171 void R_FrameData_Reset(void);
172 void R_FrameData_NewFrame(void);
173 void *R_FrameData_Alloc(size_t size);
174 void *R_FrameData_Store(size_t size, void *data);
175 void R_FrameData_SetMark(void);
176 void R_FrameData_ReturnToMark(void);
178 void R_AnimCache_Free(void);
179 void R_AnimCache_ClearCache(void);
180 qboolean R_AnimCache_GetEntity(entity_render_t *ent, qboolean wantnormals, qboolean wanttangents);
181 void R_AnimCache_CacheVisibleEntities(void);
183 #include "r_lerpanim.h"
185 extern cvar_t r_render;
186 extern cvar_t r_renderview;
187 extern cvar_t r_waterwarp;
189 extern cvar_t r_textureunits;
191 extern cvar_t r_glsl_offsetmapping;
192 extern cvar_t r_glsl_offsetmapping_reliefmapping;
193 extern cvar_t r_glsl_offsetmapping_scale;
194 extern cvar_t r_glsl_offsetmapping_lod;
195 extern cvar_t r_glsl_offsetmapping_lod_distance;
196 extern cvar_t r_glsl_deluxemapping;
198 extern cvar_t gl_polyblend;
199 extern cvar_t gl_dither;
201 extern cvar_t cl_deathfade;
203 extern cvar_t r_smoothnormals_areaweighting;
205 extern cvar_t r_test;
207 #include "gl_backend.h"
209 extern rtexture_t *r_texture_blanknormalmap;
210 extern rtexture_t *r_texture_white;
211 extern rtexture_t *r_texture_grey128;
212 extern rtexture_t *r_texture_black;
213 extern rtexture_t *r_texture_notexture;
214 extern rtexture_t *r_texture_whitecube;
215 extern rtexture_t *r_texture_normalizationcube;
216 extern rtexture_t *r_texture_fogattenuation;
217 extern rtexture_t *r_texture_fogheighttexture;
219 extern unsigned int r_queries[MAX_OCCLUSION_QUERIES];
220 extern unsigned int r_numqueries;
221 extern unsigned int r_maxqueries;
223 void R_TimeReport(const char *name);
226 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);
228 void R_CalcBeam_Vertex3f(float *vert, const vec3_t org1, const vec3_t org2, float width);
229 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);
231 extern mempool_t *r_main_mempool;
233 typedef struct rsurfacestate_s
235 // current model array pointers
236 // these may point to processing buffers if model is animated,
237 // otherwise they point to static data.
238 // these are not directly used for rendering, they are just another level
241 // these either point at array_model* buffers (if the model is animated)
242 // or the model->surfmesh.data_* buffers (if the model is not animated)
244 // these are only set when an entity render begins, they do not change on
245 // a per surface basis.
247 // this indicates the model* arrays are pointed at array_model* buffers
248 // (in other words, the model has been animated in software)
249 qboolean modelgeneratedvertex;
250 float *modelvertex3f;
251 const r_meshbuffer_t *modelvertex3f_vertexbuffer;
252 size_t modelvertex3f_bufferoffset;
253 float *modelsvector3f;
254 const r_meshbuffer_t *modelsvector3f_vertexbuffer;
255 size_t modelsvector3f_bufferoffset;
256 float *modeltvector3f;
257 const r_meshbuffer_t *modeltvector3f_vertexbuffer;
258 size_t modeltvector3f_bufferoffset;
259 float *modelnormal3f;
260 const r_meshbuffer_t *modelnormal3f_vertexbuffer;
261 size_t modelnormal3f_bufferoffset;
262 float *modellightmapcolor4f;
263 const r_meshbuffer_t *modellightmapcolor4f_vertexbuffer;
264 size_t modellightmapcolor4f_bufferoffset;
265 float *modeltexcoordtexture2f;
266 const r_meshbuffer_t *modeltexcoordtexture2f_vertexbuffer;
267 size_t modeltexcoordtexture2f_bufferoffset;
268 float *modeltexcoordlightmap2f;
269 const r_meshbuffer_t *modeltexcoordlightmap2f_vertexbuffer;
270 size_t modeltexcoordlightmap2f_bufferoffset;
271 r_vertexmesh_t *modelvertexmesh;
272 const r_meshbuffer_t *modelvertexmeshbuffer;
273 const r_meshbuffer_t *modelvertex3fbuffer;
275 const r_meshbuffer_t *modelelement3i_indexbuffer;
276 size_t modelelement3i_bufferoffset;
277 unsigned short *modelelement3s;
278 const r_meshbuffer_t *modelelement3s_indexbuffer;
279 size_t modelelement3s_bufferoffset;
280 int *modellightmapoffsets;
281 int modelnumvertices;
282 int modelnumtriangles;
283 const msurface_t *modelsurfaces;
284 // current rendering array pointers
285 // these may point to any of several different buffers depending on how
286 // much processing was needed to prepare this model for rendering
287 // these usually equal the model* pointers, they only differ if
288 // deformvertexes is used in a q3 shader, and consequently these can
289 // change on a per-surface basis (according to rsurface.texture)
290 qboolean batchgeneratedvertex;
291 int batchfirstvertex;
292 int batchnumvertices;
293 int batchfirsttriangle;
294 int batchnumtriangles;
295 r_vertexmesh_t *batchvertexmesh;
296 const r_meshbuffer_t *batchvertexmeshbuffer;
297 const r_meshbuffer_t *batchvertex3fbuffer;
298 float *batchvertex3f;
299 const r_meshbuffer_t *batchvertex3f_vertexbuffer;
300 size_t batchvertex3f_bufferoffset;
301 float *batchsvector3f;
302 const r_meshbuffer_t *batchsvector3f_vertexbuffer;
303 size_t batchsvector3f_bufferoffset;
304 float *batchtvector3f;
305 const r_meshbuffer_t *batchtvector3f_vertexbuffer;
306 size_t batchtvector3f_bufferoffset;
307 float *batchnormal3f;
308 const r_meshbuffer_t *batchnormal3f_vertexbuffer;
309 size_t batchnormal3f_bufferoffset;
310 float *batchlightmapcolor4f;
311 const r_meshbuffer_t *batchlightmapcolor4f_vertexbuffer;
312 size_t batchlightmapcolor4f_bufferoffset;
313 float *batchtexcoordtexture2f;
314 const r_meshbuffer_t *batchtexcoordtexture2f_vertexbuffer;
315 size_t batchtexcoordtexture2f_bufferoffset;
316 float *batchtexcoordlightmap2f;
317 const r_meshbuffer_t *batchtexcoordlightmap2f_vertexbuffer;
318 size_t batchtexcoordlightmap2f_bufferoffset;
320 const r_meshbuffer_t *batchelement3i_indexbuffer;
321 size_t batchelement3i_bufferoffset;
322 unsigned short *batchelement3s;
323 const r_meshbuffer_t *batchelement3s_indexbuffer;
324 size_t batchelement3s_bufferoffset;
325 // rendering pass processing arrays in GL11 and GL13 paths
327 const r_meshbuffer_t *passcolor4f_vertexbuffer;
328 size_t passcolor4f_bufferoffset;
330 // some important fields from the entity
334 int ent_alttextures; // used by q1bsp animated textures (pressed buttons)
335 double shadertime; // r_refdef.scene.time - ent->shadertime
336 // transform matrices to render this entity and effects on this entity
338 matrix4x4_t inversematrix;
339 // scale factors for transforming lengths into/out of entity space
341 float inversematrixscale;
342 // animation blending state from entity
343 frameblend_t frameblend[MAX_FRAMEBLENDS];
344 skeleton_t *skeleton;
345 // directional model shading state from entity
346 vec3_t modellight_ambient;
347 vec3_t modellight_diffuse;
348 vec3_t modellight_lightdir;
349 // colormapping state from entity (these are black if colormapping is off)
350 vec3_t colormap_pantscolor;
351 vec3_t colormap_shirtcolor;
352 // special coloring of ambient/diffuse textures (gloss not affected)
353 // colormod[3] is the alpha of the entity
355 // special coloring of glow textures
357 // view location in model space
358 vec3_t localvieworigin;
359 // polygon offset data for submodels
360 float basepolygonfactor;
361 float basepolygonoffset;
362 // current textures in batching code
364 rtexture_t *lightmaptexture;
365 rtexture_t *deluxemaptexture;
366 // whether lightmapping is active on this batch
367 // (otherwise vertex colored)
368 qboolean uselightmaptexture;
369 // fog plane in model space for direct application to vertices
371 float fogmasktabledistmultiplier;
374 float fogplaneviewdist;
377 // light currently being rendered
378 const rtlight_t *rtlight;
380 // this is the location of the light in entity space
381 vec3_t entitylightorigin;
382 // this transforms entity coordinates to light filter cubemap coordinates
383 // (also often used for other purposes)
384 matrix4x4_t entitytolight;
385 // based on entitytolight this transforms -1 to +1 to 0 to 1 for purposes
386 // of attenuation texturing in full 3D (Z result often ignored)
387 matrix4x4_t entitytoattenuationxyz;
388 // this transforms only the Z to S, and T is always 0.5
389 matrix4x4_t entitytoattenuationz;
391 // user wavefunc parameters (from csqc)
392 float userwavefunc_param[Q3WAVEFUNC_USER_COUNT];
394 // pointer to an entity_render_t used only by R_GetCurrentTexture and
395 // RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity as a unique id within
396 // each frame (see r_frame also)
397 entity_render_t *entity;
401 extern rsurfacestate_t rsurface;
403 void R_HDR_UpdateIrisAdaptation(const vec3_t point);
405 void RSurf_ActiveWorldEntity(void);
406 void RSurf_ActiveModelEntity(const entity_render_t *ent, qboolean wantnormals, qboolean wanttangents, qboolean prepass);
407 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);
408 void RSurf_SetupDepthAndCulling(void);
410 void R_Mesh_ResizeArrays(int newvertices);
412 texture_t *R_GetCurrentTexture(texture_t *t);
413 void R_DrawWorldSurfaces(qboolean skysurfaces, qboolean writedepth, qboolean depthonly, qboolean debug, qboolean prepass);
414 void R_DrawModelSurfaces(entity_render_t *ent, qboolean skysurfaces, qboolean writedepth, qboolean depthonly, qboolean debug, qboolean prepass);
415 void R_AddWaterPlanes(entity_render_t *ent);
416 void R_DrawCustomSurface(skinframe_t *skinframe, const matrix4x4_t *texmatrix, int materialflags, int firstvertex, int numvertices, int firsttriangle, int numtriangles, qboolean writedepth, qboolean prepass);
417 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);
419 #define BATCHNEED_VERTEXMESH_VERTEX (1<< 1) // set up rsurface.batchvertexmesh
420 #define BATCHNEED_VERTEXMESH_NORMAL (1<< 2) // set up normals in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchnormal3f if BATCHNEED_ARRAYS
421 #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
422 #define BATCHNEED_VERTEXMESH_VERTEXCOLOR (1<< 4) // set up vertex colors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchlightmapcolor4f if BATCHNEED_ARRAYS
423 #define BATCHNEED_VERTEXMESH_TEXCOORD (1<< 5) // set up vertex colors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchlightmapcolor4f if BATCHNEED_ARRAYS
424 #define BATCHNEED_VERTEXMESH_LIGHTMAP (1<< 6) // set up vertex colors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchlightmapcolor4f if BATCHNEED_ARRAYS
425 #define BATCHNEED_ARRAY_VERTEX (1<< 7) // set up rsurface.batchvertex3f and optionally others
426 #define BATCHNEED_ARRAY_NORMAL (1<< 8) // set up normals in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchnormal3f if BATCHNEED_ARRAYS
427 #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
428 #define BATCHNEED_ARRAY_VERTEXCOLOR (1<<10) // set up vertex colors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchlightmapcolor4f if BATCHNEED_ARRAYS
429 #define BATCHNEED_ARRAY_TEXCOORD (1<<11) // set up vertex colors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchlightmapcolor4f if BATCHNEED_ARRAYS
430 #define BATCHNEED_ARRAY_LIGHTMAP (1<<12) // set up vertex colors in rsurface.batchvertexmesh if BATCHNEED_MESH, set up rsurface.batchlightmapcolor4f if BATCHNEED_ARRAYS
431 #define BATCHNEED_NOGAPS (1<<13) // force vertex copying (no gaps)
432 void RSurf_PrepareVerticesForBatch(int batchneed, int texturenumsurfaces, const msurface_t **texturesurfacelist);
433 void RSurf_DrawBatch(void);
435 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);
437 typedef enum rsurfacepass_e
440 RSURFPASS_BACKGROUND,
442 RSURFPASS_DEFERREDGEOMETRY
446 void R_SetupShader_Generic(rtexture_t *first, rtexture_t *second, int texturemode, int rgbscale, qboolean usegamma, qboolean notrippy);
447 void R_SetupShader_DepthOrShadow(qboolean notrippy);
448 void R_SetupShader_ShowDepth(qboolean notrippy);
449 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, qboolean notrippy);
450 void R_SetupShader_DeferredLight(const rtlight_t *rtlight);
452 typedef struct r_waterstate_waterplane_s
454 rtexture_t *texture_refraction;
455 rtexture_t *texture_reflection;
456 rtexture_t *texture_camera;
458 int materialflags; // combined flags of all water surfaces on this plane
459 unsigned char pvsbits[(MAX_MAP_LEAFS+7)>>3]; // FIXME: buffer overflow on huge maps
464 r_waterstate_waterplane_t;
466 typedef struct r_waterstate_s
470 qboolean renderingscene; // true while rendering a refraction or reflection texture, disables water surfaces
471 qboolean renderingrefraction;
473 int waterwidth, waterheight;
474 int texturewidth, textureheight;
475 int camerawidth, cameraheight;
477 int maxwaterplanes; // same as MAX_WATERPLANES
479 r_waterstate_waterplane_t waterplanes[MAX_WATERPLANES];
481 float screenscale[2];
482 float screencenter[2];
486 extern r_waterstate_t r_waterstate;