3 Terminology: Stencil Shadow Volume (sometimes called Stencil Shadows)
4 An extrusion of the lit faces, beginning at the original geometry and ending
5 further from the light source than the original geometry (presumably at least
6 as far as the light's radius, if the light has a radius at all), capped at
7 both front and back to avoid any problems (extrusion from dark faces also
8 works but has a different set of problems)
10 This is normally rendered using Carmack's Reverse technique, in which
11 backfaces behind zbuffer (zfail) increment the stencil, and frontfaces behind
12 zbuffer (zfail) decrement the stencil, the result is a stencil value of zero
13 where shadows did not intersect the visible geometry, suitable as a stencil
14 mask for rendering lighting everywhere but shadow.
16 In our case to hopefully avoid the Creative Labs patent, we draw the backfaces
17 as decrement and the frontfaces as increment, and we redefine the DepthFunc to
18 GL_LESS (the patent uses GL_GEQUAL) which causes zfail when behind surfaces
19 and zpass when infront (the patent draws where zpass with a GL_GEQUAL test),
20 additionally we clear stencil to 128 to avoid the need for the unclamped
21 incr/decr extension (not related to patent).
24 This algorithm may be covered by Creative's patent (US Patent #6384822),
25 however that patent is quite specific about increment on backfaces and
26 decrement on frontfaces where zpass with GL_GEQUAL depth test, which is
27 opposite this implementation and partially opposite Carmack's Reverse paper
28 (which uses GL_LESS, but increments on backfaces and decrements on frontfaces).
32 Terminology: Stencil Light Volume (sometimes called Light Volumes)
33 Similar to a Stencil Shadow Volume, but inverted; rather than containing the
34 areas in shadow it contains the areas in light, this can only be built
35 quickly for certain limited cases (such as portal visibility from a point),
36 but is quite useful for some effects (sunlight coming from sky polygons is
37 one possible example, translucent occluders is another example).
41 Terminology: Optimized Stencil Shadow Volume
42 A Stencil Shadow Volume that has been processed sufficiently to ensure it has
43 no duplicate coverage of areas (no need to shadow an area twice), often this
44 greatly improves performance but is an operation too costly to use on moving
45 lights (however completely optimal Stencil Light Volumes can be constructed
50 Terminology: Per Pixel Lighting (sometimes abbreviated PPL)
51 Per pixel evaluation of lighting equations, at a bare minimum this involves
52 DOT3 shading of diffuse lighting (per pixel dotproduct of negated incidence
53 vector and surface normal, using a texture of the surface bumps, called a
54 NormalMap) if supported by hardware; in our case there is support for cards
55 which are incapable of DOT3, the quality is quite poor however. Additionally
56 it is desirable to have specular evaluation per pixel, per vertex
57 normalization of specular halfangle vectors causes noticable distortion but
58 is unavoidable on hardware without GL_ARB_fragment_program or
59 GL_ARB_fragment_shader.
63 Terminology: Normalization CubeMap
64 A cubemap containing normalized dot3-encoded (vectors of length 1 or less
65 encoded as RGB colors) for any possible direction, this technique allows per
66 pixel calculation of incidence vector for per pixel lighting purposes, which
67 would not otherwise be possible per pixel without GL_ARB_fragment_program or
68 GL_ARB_fragment_shader.
72 Terminology: 2D+1D Attenuation Texturing
73 A very crude approximation of light attenuation with distance which results
74 in cylindrical light shapes which fade vertically as a streak (some games
75 such as Doom3 allow this to be rotated to be less noticable in specific
76 cases), the technique is simply modulating lighting by two 2D textures (which
77 can be the same) on different axes of projection (XY and Z, typically), this
78 is the second best technique available without 3D Attenuation Texturing,
79 GL_ARB_fragment_program or GL_ARB_fragment_shader technology.
83 Terminology: 2D+1D Inverse Attenuation Texturing
84 A clever method described in papers on the Abducted engine, this has a squared
85 distance texture (bright on the outside, black in the middle), which is used
86 twice using GL_ADD blending, the result of this is used in an inverse modulate
87 (GL_ONE_MINUS_DST_ALPHA, GL_ZERO) to implement the equation
88 lighting*=(1-((X*X+Y*Y)+(Z*Z))) which is spherical (unlike 2D+1D attenuation
93 Terminology: 3D Attenuation Texturing
94 A slightly crude approximation of light attenuation with distance, its flaws
95 are limited radius and resolution (performance tradeoffs).
99 Terminology: 3D Attenuation-Normalization Texturing
100 A 3D Attenuation Texture merged with a Normalization CubeMap, by making the
101 vectors shorter the lighting becomes darker, a very effective optimization of
102 diffuse lighting if 3D Attenuation Textures are already used.
106 Terminology: Light Cubemap Filtering
107 A technique for modeling non-uniform light distribution according to
108 direction, for example a lantern may use a cubemap to describe the light
109 emission pattern of the cage around the lantern (as well as soot buildup
110 discoloring the light in certain areas), often also used for softened grate
111 shadows and light shining through a stained glass window (done crudely by
112 texturing the lighting with a cubemap), another good example would be a disco
113 light. This technique is used heavily in many games (Doom3 does not support
118 Terminology: Light Projection Filtering
119 A technique for modeling shadowing of light passing through translucent
120 surfaces, allowing stained glass windows and other effects to be done more
121 elegantly than possible with Light Cubemap Filtering by applying an occluder
122 texture to the lighting combined with a stencil light volume to limit the lit
123 area, this technique is used by Doom3 for spotlights and flashlights, among
124 other things, this can also be used more generally to render light passing
125 through multiple translucent occluders in a scene (using a light volume to
126 describe the area beyond the occluder, and thus mask off rendering of all
131 Terminology: Doom3 Lighting
132 A combination of Stencil Shadow Volume, Per Pixel Lighting, Normalization
133 CubeMap, 2D+1D Attenuation Texturing, and Light Projection Filtering, as
134 demonstrated by the game Doom3.
137 #include "quakedef.h"
138 #include "r_shadow.h"
139 #include "cl_collision.h"
143 #define R_SHADOW_SHADOWMAP_NUMCUBEMAPS 8
145 extern void R_Shadow_EditLights_Init(void);
147 typedef enum r_shadow_rendermode_e
149 R_SHADOW_RENDERMODE_NONE,
150 R_SHADOW_RENDERMODE_ZPASS_STENCIL,
151 R_SHADOW_RENDERMODE_ZPASS_SEPARATESTENCIL,
152 R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE,
153 R_SHADOW_RENDERMODE_ZFAIL_STENCIL,
154 R_SHADOW_RENDERMODE_ZFAIL_SEPARATESTENCIL,
155 R_SHADOW_RENDERMODE_ZFAIL_STENCILTWOSIDE,
156 R_SHADOW_RENDERMODE_LIGHT_VERTEX,
157 R_SHADOW_RENDERMODE_LIGHT_DOT3,
158 R_SHADOW_RENDERMODE_LIGHT_GLSL,
159 R_SHADOW_RENDERMODE_VISIBLEVOLUMES,
160 R_SHADOW_RENDERMODE_VISIBLELIGHTING,
161 R_SHADOW_RENDERMODE_SHADOWMAP2D,
162 R_SHADOW_RENDERMODE_SHADOWMAPRECTANGLE,
163 R_SHADOW_RENDERMODE_SHADOWMAPCUBESIDE,
165 r_shadow_rendermode_t;
167 typedef enum r_shadow_shadowmode_e
169 R_SHADOW_SHADOWMODE_STENCIL,
170 R_SHADOW_SHADOWMODE_SHADOWMAP2D,
171 R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE,
172 R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE
174 r_shadow_shadowmode_t;
176 r_shadow_rendermode_t r_shadow_rendermode = R_SHADOW_RENDERMODE_NONE;
177 r_shadow_rendermode_t r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_NONE;
178 r_shadow_rendermode_t r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_NONE;
179 r_shadow_rendermode_t r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_NONE;
180 qboolean r_shadow_usingshadowmaprect;
181 qboolean r_shadow_usingshadowmap2d;
182 qboolean r_shadow_usingshadowmapcube;
183 int r_shadow_shadowmapside;
184 float r_shadow_shadowmap_texturescale[2];
185 float r_shadow_shadowmap_parameters[4];
187 int r_shadow_drawbuffer;
188 int r_shadow_readbuffer;
190 int r_shadow_cullface_front, r_shadow_cullface_back;
191 GLuint r_shadow_fborectangle;
192 GLuint r_shadow_fbocubeside[R_SHADOW_SHADOWMAP_NUMCUBEMAPS];
193 GLuint r_shadow_fbo2d;
194 r_shadow_shadowmode_t r_shadow_shadowmode;
195 int r_shadow_shadowmapfilterquality;
196 int r_shadow_shadowmaptexturetype;
197 int r_shadow_shadowmapdepthbits;
198 int r_shadow_shadowmapmaxsize;
199 qboolean r_shadow_shadowmapvsdct;
200 qboolean r_shadow_shadowmapsampler;
201 int r_shadow_shadowmappcf;
202 int r_shadow_shadowmapborder;
203 int r_shadow_lightscissor[4];
205 int maxshadowtriangles;
208 int maxshadowvertices;
209 float *shadowvertex3f;
219 unsigned char *shadowsides;
220 int *shadowsideslist;
227 int r_shadow_buffer_numleafpvsbytes;
228 unsigned char *r_shadow_buffer_visitingleafpvs;
229 unsigned char *r_shadow_buffer_leafpvs;
230 int *r_shadow_buffer_leaflist;
232 int r_shadow_buffer_numsurfacepvsbytes;
233 unsigned char *r_shadow_buffer_surfacepvs;
234 int *r_shadow_buffer_surfacelist;
235 unsigned char *r_shadow_buffer_surfacesides;
237 int r_shadow_buffer_numshadowtrispvsbytes;
238 unsigned char *r_shadow_buffer_shadowtrispvs;
239 int r_shadow_buffer_numlighttrispvsbytes;
240 unsigned char *r_shadow_buffer_lighttrispvs;
242 rtexturepool_t *r_shadow_texturepool;
243 rtexture_t *r_shadow_attenuationgradienttexture;
244 rtexture_t *r_shadow_attenuation2dtexture;
245 rtexture_t *r_shadow_attenuation3dtexture;
246 rtexture_t *r_shadow_lightcorona;
247 rtexture_t *r_shadow_shadowmaprectangletexture;
248 rtexture_t *r_shadow_shadowmap2dtexture;
249 rtexture_t *r_shadow_shadowmapcubetexture[R_SHADOW_SHADOWMAP_NUMCUBEMAPS];
250 rtexture_t *r_shadow_shadowmapvsdcttexture;
251 int r_shadow_shadowmapsize; // changes for each light based on distance
252 int r_shadow_shadowmaplod; // changes for each light based on distance
254 // lights are reloaded when this changes
255 char r_shadow_mapname[MAX_QPATH];
257 // used only for light filters (cubemaps)
258 rtexturepool_t *r_shadow_filters_texturepool;
260 cvar_t r_shadow_bumpscale_basetexture = {0, "r_shadow_bumpscale_basetexture", "0", "generate fake bumpmaps from diffuse textures at this bumpyness, try 4 to match tenebrae, higher values increase depth, requires r_restart to take effect"};
261 cvar_t r_shadow_bumpscale_bumpmap = {0, "r_shadow_bumpscale_bumpmap", "4", "what magnitude to interpret _bump.tga textures as, higher values increase depth, requires r_restart to take effect"};
262 cvar_t r_shadow_debuglight = {0, "r_shadow_debuglight", "-1", "renders only one light, for level design purposes or debugging"};
263 cvar_t r_shadow_dot3 = {CVAR_SAVE, "r_shadow_dot3", "0", "enables use of (slow) per pixel lighting on GL1.3 hardware"};
264 cvar_t r_shadow_usenormalmap = {CVAR_SAVE, "r_shadow_usenormalmap", "1", "enables use of directional shading on lights"};
265 cvar_t r_shadow_gloss = {CVAR_SAVE, "r_shadow_gloss", "1", "0 disables gloss (specularity) rendering, 1 uses gloss if textures are found, 2 forces a flat metallic specular effect on everything without textures (similar to tenebrae)"};
266 cvar_t r_shadow_gloss2intensity = {0, "r_shadow_gloss2intensity", "0.125", "how bright the forced flat gloss should look if r_shadow_gloss is 2"};
267 cvar_t r_shadow_glossintensity = {0, "r_shadow_glossintensity", "1", "how bright textured glossmaps should look if r_shadow_gloss is 1 or 2"};
268 cvar_t r_shadow_glossexponent = {0, "r_shadow_glossexponent", "32", "how 'sharp' the gloss should appear (specular power)"};
269 cvar_t r_shadow_gloss2exponent = {0, "r_shadow_gloss2exponent", "32", "same as r_shadow_glossexponent but for forced gloss (gloss 2) surfaces"};
270 cvar_t r_shadow_glossexact = {0, "r_shadow_glossexact", "0", "use exact reflection math for gloss (slightly slower, but should look a tad better)"};
271 cvar_t r_shadow_lightattenuationdividebias = {0, "r_shadow_lightattenuationdividebias", "1", "changes attenuation texture generation"};
272 cvar_t r_shadow_lightattenuationlinearscale = {0, "r_shadow_lightattenuationlinearscale", "2", "changes attenuation texture generation"};
273 cvar_t r_shadow_lightintensityscale = {0, "r_shadow_lightintensityscale", "1", "renders all world lights brighter or darker"};
274 cvar_t r_shadow_lightradiusscale = {0, "r_shadow_lightradiusscale", "1", "renders all world lights larger or smaller"};
275 cvar_t r_shadow_portallight = {0, "r_shadow_portallight", "1", "use portal culling to exactly determine lit triangles when compiling world lights"};
276 cvar_t r_shadow_projectdistance = {0, "r_shadow_projectdistance", "1000000", "how far to cast shadows"};
277 cvar_t r_shadow_frontsidecasting = {0, "r_shadow_frontsidecasting", "1", "whether to cast shadows from illuminated triangles (front side of model) or unlit triangles (back side of model)"};
278 cvar_t r_shadow_realtime_dlight = {CVAR_SAVE, "r_shadow_realtime_dlight", "1", "enables rendering of dynamic lights such as explosions and rocket light"};
279 cvar_t r_shadow_realtime_dlight_shadows = {CVAR_SAVE, "r_shadow_realtime_dlight_shadows", "1", "enables rendering of shadows from dynamic lights"};
280 cvar_t r_shadow_realtime_dlight_svbspculling = {0, "r_shadow_realtime_dlight_svbspculling", "0", "enables svbsp optimization on dynamic lights (very slow!)"};
281 cvar_t r_shadow_realtime_dlight_portalculling = {0, "r_shadow_realtime_dlight_portalculling", "0", "enables portal optimization on dynamic lights (slow!)"};
282 cvar_t r_shadow_realtime_world = {CVAR_SAVE, "r_shadow_realtime_world", "0", "enables rendering of full world lighting (whether loaded from the map, or a .rtlights file, or a .ent file, or a .lights file produced by hlight)"};
283 cvar_t r_shadow_realtime_world_lightmaps = {CVAR_SAVE, "r_shadow_realtime_world_lightmaps", "0", "brightness to render lightmaps when using full world lighting, try 0.5 for a tenebrae-like appearance"};
284 cvar_t r_shadow_realtime_world_shadows = {CVAR_SAVE, "r_shadow_realtime_world_shadows", "1", "enables rendering of shadows from world lights"};
285 cvar_t r_shadow_realtime_world_compile = {0, "r_shadow_realtime_world_compile", "1", "enables compilation of world lights for higher performance rendering"};
286 cvar_t r_shadow_realtime_world_compileshadow = {0, "r_shadow_realtime_world_compileshadow", "1", "enables compilation of shadows from world lights for higher performance rendering"};
287 cvar_t r_shadow_realtime_world_compilesvbsp = {0, "r_shadow_realtime_world_compilesvbsp", "1", "enables svbsp optimization during compilation"};
288 cvar_t r_shadow_realtime_world_compileportalculling = {0, "r_shadow_realtime_world_compileportalculling", "1", "enables portal-based culling optimization during compilation"};
289 cvar_t r_shadow_scissor = {0, "r_shadow_scissor", "1", "use scissor optimization of light rendering (restricts rendering to the portion of the screen affected by the light)"};
290 cvar_t r_shadow_shadowmapping = {CVAR_SAVE, "r_shadow_shadowmapping", "0", "enables use of shadowmapping (depth texture sampling) instead of stencil shadow volumes, requires gl_fbo 1"};
291 cvar_t r_shadow_shadowmapping_texturetype = {CVAR_SAVE, "r_shadow_shadowmapping_texturetype", "-1", "shadowmap texture types: -1 = auto-select, 0 = 2D, 1 = rectangle, 2 = cubemap"};
292 cvar_t r_shadow_shadowmapping_filterquality = {CVAR_SAVE, "r_shadow_shadowmapping_filterquality", "-1", "shadowmap filter modes: -1 = auto-select, 0 = no filtering, 1 = bilinear, 2 = bilinear 2x2 blur (fast), 3 = 3x3 blur (moderate), 4 = 4x4 blur (slow)"};
293 cvar_t r_shadow_shadowmapping_depthbits = {CVAR_SAVE, "r_shadow_shadowmapping_depthbits", "24", "requested minimum shadowmap texture depth bits"};
294 cvar_t r_shadow_shadowmapping_vsdct = {CVAR_SAVE, "r_shadow_shadowmapping_vsdct", "1", "enables use of virtual shadow depth cube texture"};
295 cvar_t r_shadow_shadowmapping_minsize = {CVAR_SAVE, "r_shadow_shadowmapping_minsize", "32", "shadowmap size limit"};
296 cvar_t r_shadow_shadowmapping_maxsize = {CVAR_SAVE, "r_shadow_shadowmapping_maxsize", "512", "shadowmap size limit"};
297 cvar_t r_shadow_shadowmapping_precision = {CVAR_SAVE, "r_shadow_shadowmapping_precision", "1", "makes shadowmaps have a maximum resolution of this number of pixels per light source radius unit such that, for example, at precision 0.5 a light with radius 200 will have a maximum resolution of 100 pixels"};
298 //cvar_t r_shadow_shadowmapping_lod_bias = {CVAR_SAVE, "r_shadow_shadowmapping_lod_bias", "16", "shadowmap size bias"};
299 //cvar_t r_shadow_shadowmapping_lod_scale = {CVAR_SAVE, "r_shadow_shadowmapping_lod_scale", "128", "shadowmap size scaling parameter"};
300 cvar_t r_shadow_shadowmapping_bordersize = {CVAR_SAVE, "r_shadow_shadowmapping_bordersize", "4", "shadowmap size bias for filtering"};
301 cvar_t r_shadow_shadowmapping_nearclip = {CVAR_SAVE, "r_shadow_shadowmapping_nearclip", "1", "shadowmap nearclip in world units"};
302 cvar_t r_shadow_shadowmapping_bias = {CVAR_SAVE, "r_shadow_shadowmapping_bias", "0.03", "shadowmap bias parameter (this is multiplied by nearclip * 1024 / lodsize)"};
303 cvar_t r_shadow_shadowmapping_polygonfactor = {CVAR_SAVE, "r_shadow_shadowmapping_polygonfactor", "2", "slope-dependent shadowmapping bias"};
304 cvar_t r_shadow_shadowmapping_polygonoffset = {CVAR_SAVE, "r_shadow_shadowmapping_polygonoffset", "0", "constant shadowmapping bias"};
305 cvar_t r_shadow_culltriangles = {0, "r_shadow_culltriangles", "1", "performs more expensive tests to remove unnecessary triangles of lit surfaces"};
306 cvar_t r_shadow_polygonfactor = {0, "r_shadow_polygonfactor", "0", "how much to enlarge shadow volume polygons when rendering (should be 0!)"};
307 cvar_t r_shadow_polygonoffset = {0, "r_shadow_polygonoffset", "1", "how much to push shadow volumes into the distance when rendering, to reduce chances of zfighting artifacts (should not be less than 0)"};
308 cvar_t r_shadow_texture3d = {0, "r_shadow_texture3d", "1", "use 3D voxel textures for spherical attenuation rather than cylindrical (does not affect r_glsl lighting)"};
309 cvar_t r_coronas = {CVAR_SAVE, "r_coronas", "1", "brightness of corona flare effects around certain lights, 0 disables corona effects"};
310 cvar_t r_coronas_occlusionsizescale = {CVAR_SAVE, "r_coronas_occlusionsizescale", "0.1", "size of light source for corona occlusion checksm the proportion of hidden pixels controls corona intensity"};
311 cvar_t r_coronas_occlusionquery = {CVAR_SAVE, "r_coronas_occlusionquery", "1", "use GL_ARB_occlusion_query extension if supported (fades coronas according to visibility)"};
312 cvar_t gl_flashblend = {CVAR_SAVE, "gl_flashblend", "0", "render bright coronas for dynamic lights instead of actual lighting, fast but ugly"};
313 cvar_t gl_ext_separatestencil = {0, "gl_ext_separatestencil", "1", "make use of OpenGL 2.0 glStencilOpSeparate or GL_ATI_separate_stencil extension"};
314 cvar_t gl_ext_stenciltwoside = {0, "gl_ext_stenciltwoside", "1", "make use of GL_EXT_stenciltwoside extension (NVIDIA only)"};
315 cvar_t r_editlights = {0, "r_editlights", "0", "enables .rtlights file editing mode"};
316 cvar_t r_editlights_cursordistance = {0, "r_editlights_cursordistance", "1024", "maximum distance of cursor from eye"};
317 cvar_t r_editlights_cursorpushback = {0, "r_editlights_cursorpushback", "0", "how far to pull the cursor back toward the eye"};
318 cvar_t r_editlights_cursorpushoff = {0, "r_editlights_cursorpushoff", "4", "how far to push the cursor off the impacted surface"};
319 cvar_t r_editlights_cursorgrid = {0, "r_editlights_cursorgrid", "4", "snaps cursor to this grid size"};
320 cvar_t r_editlights_quakelightsizescale = {CVAR_SAVE, "r_editlights_quakelightsizescale", "1", "changes size of light entities loaded from a map"};
322 // note the table actually includes one more value, just to avoid the need to clamp the distance index due to minor math error
323 #define ATTENTABLESIZE 256
324 // 1D gradient, 2D circle and 3D sphere attenuation textures
325 #define ATTEN1DSIZE 32
326 #define ATTEN2DSIZE 64
327 #define ATTEN3DSIZE 32
329 static float r_shadow_attendividebias; // r_shadow_lightattenuationdividebias
330 static float r_shadow_attenlinearscale; // r_shadow_lightattenuationlinearscale
331 static float r_shadow_attentable[ATTENTABLESIZE+1];
333 rtlight_t *r_shadow_compilingrtlight;
334 static memexpandablearray_t r_shadow_worldlightsarray;
335 dlight_t *r_shadow_selectedlight;
336 dlight_t r_shadow_bufferlight;
337 vec3_t r_editlights_cursorlocation;
339 extern int con_vislines;
341 typedef struct cubemapinfo_s
348 #define MAX_CUBEMAPS 256
349 static int numcubemaps;
350 static cubemapinfo_t cubemaps[MAX_CUBEMAPS];
352 void R_Shadow_UncompileWorldLights(void);
353 void R_Shadow_ClearWorldLights(void);
354 void R_Shadow_SaveWorldLights(void);
355 void R_Shadow_LoadWorldLights(void);
356 void R_Shadow_LoadLightsFile(void);
357 void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void);
358 void R_Shadow_EditLights_Reload_f(void);
359 void R_Shadow_ValidateCvars(void);
360 static void R_Shadow_MakeTextures(void);
362 // VorteX: custom editor light sprites
363 #define EDLIGHTSPRSIZE 8
364 cachepic_t *r_editlights_sprcursor;
365 cachepic_t *r_editlights_sprlight;
366 cachepic_t *r_editlights_sprnoshadowlight;
367 cachepic_t *r_editlights_sprcubemaplight;
368 cachepic_t *r_editlights_sprcubemapnoshadowlight;
369 cachepic_t *r_editlights_sprselection;
370 extern cvar_t gl_max_size;
372 void R_Shadow_SetShadowMode(void)
374 r_shadow_shadowmapmaxsize = bound(1, r_shadow_shadowmapping_maxsize.integer, gl_max_size.integer / 4);
375 r_shadow_shadowmapvsdct = r_shadow_shadowmapping_vsdct.integer != 0;
376 r_shadow_shadowmapfilterquality = r_shadow_shadowmapping_filterquality.integer;
377 r_shadow_shadowmaptexturetype = r_shadow_shadowmapping_texturetype.integer;
378 r_shadow_shadowmapdepthbits = r_shadow_shadowmapping_depthbits.integer;
379 r_shadow_shadowmapborder = bound(0, r_shadow_shadowmapping_bordersize.integer, 16);
380 r_shadow_shadowmaplod = -1;
381 r_shadow_shadowmapsize = 0;
382 r_shadow_shadowmapsampler = false;
383 r_shadow_shadowmappcf = 0;
384 r_shadow_shadowmode = R_SHADOW_SHADOWMODE_STENCIL;
385 if(r_shadow_shadowmapping.integer && r_glsl.integer && gl_support_fragment_shader && gl_support_ext_framebuffer_object)
387 if(r_shadow_shadowmapfilterquality < 0)
389 if(strstr(gl_vendor, "NVIDIA"))
391 r_shadow_shadowmapsampler = gl_support_arb_shadow;
392 r_shadow_shadowmappcf = 1;
394 else if(gl_support_amd_texture_texture4 || gl_support_arb_texture_gather)
395 r_shadow_shadowmappcf = 1;
396 else if(strstr(gl_vendor, "ATI"))
397 r_shadow_shadowmappcf = 1;
399 r_shadow_shadowmapsampler = gl_support_arb_shadow;
403 switch (r_shadow_shadowmapfilterquality)
406 r_shadow_shadowmapsampler = gl_support_arb_shadow;
409 r_shadow_shadowmapsampler = gl_support_arb_shadow;
410 r_shadow_shadowmappcf = 1;
413 r_shadow_shadowmappcf = 1;
416 r_shadow_shadowmappcf = 2;
420 switch (r_shadow_shadowmaptexturetype)
423 r_shadow_shadowmode = R_SHADOW_SHADOWMODE_SHADOWMAP2D;
426 r_shadow_shadowmode = R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE;
429 r_shadow_shadowmode = R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE;
432 if((gl_support_amd_texture_texture4 || gl_support_arb_texture_gather) && r_shadow_shadowmappcf && !r_shadow_shadowmapsampler)
433 r_shadow_shadowmode = R_SHADOW_SHADOWMODE_SHADOWMAP2D;
434 else if(gl_texturerectangle)
435 r_shadow_shadowmode = R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE;
437 r_shadow_shadowmode = R_SHADOW_SHADOWMODE_SHADOWMAP2D;
443 void R_Shadow_FreeShadowMaps(void)
447 R_Shadow_SetShadowMode();
449 if (r_shadow_fborectangle)
450 qglDeleteFramebuffersEXT(1, &r_shadow_fborectangle);
451 r_shadow_fborectangle = 0;
455 qglDeleteFramebuffersEXT(1, &r_shadow_fbo2d);
458 for (i = 0;i < R_SHADOW_SHADOWMAP_NUMCUBEMAPS;i++)
459 if (r_shadow_fbocubeside[i])
460 qglDeleteFramebuffersEXT(1, &r_shadow_fbocubeside[i]);
461 memset(r_shadow_fbocubeside, 0, sizeof(r_shadow_fbocubeside));
464 if (r_shadow_shadowmaprectangletexture)
465 R_FreeTexture(r_shadow_shadowmaprectangletexture);
466 r_shadow_shadowmaprectangletexture = NULL;
468 if (r_shadow_shadowmap2dtexture)
469 R_FreeTexture(r_shadow_shadowmap2dtexture);
470 r_shadow_shadowmap2dtexture = NULL;
472 for (i = 0;i < R_SHADOW_SHADOWMAP_NUMCUBEMAPS;i++)
473 if (r_shadow_shadowmapcubetexture[i])
474 R_FreeTexture(r_shadow_shadowmapcubetexture[i]);
475 memset(r_shadow_shadowmapcubetexture, 0, sizeof(r_shadow_shadowmapcubetexture));
477 if (r_shadow_shadowmapvsdcttexture)
478 R_FreeTexture(r_shadow_shadowmapvsdcttexture);
479 r_shadow_shadowmapvsdcttexture = NULL;
484 void r_shadow_start(void)
486 // allocate vertex processing arrays
488 r_shadow_attenuationgradienttexture = NULL;
489 r_shadow_attenuation2dtexture = NULL;
490 r_shadow_attenuation3dtexture = NULL;
491 r_shadow_shadowmode = R_SHADOW_SHADOWMODE_STENCIL;
492 r_shadow_shadowmaprectangletexture = NULL;
493 r_shadow_shadowmap2dtexture = NULL;
494 memset(r_shadow_shadowmapcubetexture, 0, sizeof(r_shadow_shadowmapcubetexture));
495 r_shadow_shadowmapvsdcttexture = NULL;
496 r_shadow_shadowmapmaxsize = 0;
497 r_shadow_shadowmapsize = 0;
498 r_shadow_shadowmaplod = 0;
499 r_shadow_shadowmapfilterquality = -1;
500 r_shadow_shadowmaptexturetype = -1;
501 r_shadow_shadowmapdepthbits = 0;
502 r_shadow_shadowmapvsdct = false;
503 r_shadow_shadowmapsampler = false;
504 r_shadow_shadowmappcf = 0;
505 r_shadow_fborectangle = 0;
507 memset(r_shadow_fbocubeside, 0, sizeof(r_shadow_fbocubeside));
509 R_Shadow_FreeShadowMaps();
511 r_shadow_texturepool = NULL;
512 r_shadow_filters_texturepool = NULL;
513 R_Shadow_ValidateCvars();
514 R_Shadow_MakeTextures();
515 maxshadowtriangles = 0;
516 shadowelements = NULL;
517 maxshadowvertices = 0;
518 shadowvertex3f = NULL;
526 shadowmarklist = NULL;
531 shadowsideslist = NULL;
532 r_shadow_buffer_numleafpvsbytes = 0;
533 r_shadow_buffer_visitingleafpvs = NULL;
534 r_shadow_buffer_leafpvs = NULL;
535 r_shadow_buffer_leaflist = NULL;
536 r_shadow_buffer_numsurfacepvsbytes = 0;
537 r_shadow_buffer_surfacepvs = NULL;
538 r_shadow_buffer_surfacelist = NULL;
539 r_shadow_buffer_surfacesides = NULL;
540 r_shadow_buffer_numshadowtrispvsbytes = 0;
541 r_shadow_buffer_shadowtrispvs = NULL;
542 r_shadow_buffer_numlighttrispvsbytes = 0;
543 r_shadow_buffer_lighttrispvs = NULL;
546 void r_shadow_shutdown(void)
549 R_Shadow_UncompileWorldLights();
551 R_Shadow_FreeShadowMaps();
555 r_shadow_attenuationgradienttexture = NULL;
556 r_shadow_attenuation2dtexture = NULL;
557 r_shadow_attenuation3dtexture = NULL;
558 R_FreeTexturePool(&r_shadow_texturepool);
559 R_FreeTexturePool(&r_shadow_filters_texturepool);
560 maxshadowtriangles = 0;
562 Mem_Free(shadowelements);
563 shadowelements = NULL;
565 Mem_Free(shadowvertex3f);
566 shadowvertex3f = NULL;
569 Mem_Free(vertexupdate);
572 Mem_Free(vertexremap);
578 Mem_Free(shadowmark);
581 Mem_Free(shadowmarklist);
582 shadowmarklist = NULL;
587 Mem_Free(shadowsides);
590 Mem_Free(shadowsideslist);
591 shadowsideslist = NULL;
592 r_shadow_buffer_numleafpvsbytes = 0;
593 if (r_shadow_buffer_visitingleafpvs)
594 Mem_Free(r_shadow_buffer_visitingleafpvs);
595 r_shadow_buffer_visitingleafpvs = NULL;
596 if (r_shadow_buffer_leafpvs)
597 Mem_Free(r_shadow_buffer_leafpvs);
598 r_shadow_buffer_leafpvs = NULL;
599 if (r_shadow_buffer_leaflist)
600 Mem_Free(r_shadow_buffer_leaflist);
601 r_shadow_buffer_leaflist = NULL;
602 r_shadow_buffer_numsurfacepvsbytes = 0;
603 if (r_shadow_buffer_surfacepvs)
604 Mem_Free(r_shadow_buffer_surfacepvs);
605 r_shadow_buffer_surfacepvs = NULL;
606 if (r_shadow_buffer_surfacelist)
607 Mem_Free(r_shadow_buffer_surfacelist);
608 r_shadow_buffer_surfacelist = NULL;
609 if (r_shadow_buffer_surfacesides)
610 Mem_Free(r_shadow_buffer_surfacesides);
611 r_shadow_buffer_surfacesides = NULL;
612 r_shadow_buffer_numshadowtrispvsbytes = 0;
613 if (r_shadow_buffer_shadowtrispvs)
614 Mem_Free(r_shadow_buffer_shadowtrispvs);
615 r_shadow_buffer_numlighttrispvsbytes = 0;
616 if (r_shadow_buffer_lighttrispvs)
617 Mem_Free(r_shadow_buffer_lighttrispvs);
620 void r_shadow_newmap(void)
622 if (cl.worldmodel && strncmp(cl.worldmodel->name, r_shadow_mapname, sizeof(r_shadow_mapname)))
623 R_Shadow_EditLights_Reload_f();
626 void R_Shadow_Help_f(void)
629 "Documentation on r_shadow system:\n"
631 "r_shadow_bumpscale_basetexture : base texture as bumpmap with this scale\n"
632 "r_shadow_bumpscale_bumpmap : depth scale for bumpmap conversion\n"
633 "r_shadow_debuglight : render only this light number (-1 = all)\n"
634 "r_shadow_gloss 0/1/2 : no gloss, gloss textures only, force gloss\n"
635 "r_shadow_gloss2intensity : brightness of forced gloss\n"
636 "r_shadow_glossintensity : brightness of textured gloss\n"
637 "r_shadow_lightattenuationlinearscale : used to generate attenuation texture\n"
638 "r_shadow_lightattenuationdividebias : used to generate attenuation texture\n"
639 "r_shadow_lightintensityscale : scale rendering brightness of all lights\n"
640 "r_shadow_lightradiusscale : scale rendering radius of all lights\n"
641 "r_shadow_portallight : use portal visibility for static light precomputation\n"
642 "r_shadow_projectdistance : shadow volume projection distance\n"
643 "r_shadow_realtime_dlight : use high quality dynamic lights in normal mode\n"
644 "r_shadow_realtime_dlight_shadows : cast shadows from dlights\n"
645 "r_shadow_realtime_world : use high quality world lighting mode\n"
646 "r_shadow_realtime_world_lightmaps : use lightmaps in addition to lights\n"
647 "r_shadow_realtime_world_shadows : cast shadows from world lights\n"
648 "r_shadow_realtime_world_compile : compile surface/visibility information\n"
649 "r_shadow_realtime_world_compileshadow : compile shadow geometry\n"
650 "r_shadow_scissor : use scissor optimization\n"
651 "r_shadow_polygonfactor : nudge shadow volumes closer/further\n"
652 "r_shadow_polygonoffset : nudge shadow volumes closer/further\n"
653 "r_shadow_texture3d : use 3d attenuation texture (if hardware supports)\n"
654 "r_showlighting : useful for performance testing; bright = slow!\n"
655 "r_showshadowvolumes : useful for performance testing; bright = slow!\n"
657 "r_shadow_help : this help\n"
661 void R_Shadow_Init(void)
663 Cvar_RegisterVariable(&r_shadow_bumpscale_basetexture);
664 Cvar_RegisterVariable(&r_shadow_bumpscale_bumpmap);
665 Cvar_RegisterVariable(&r_shadow_dot3);
666 Cvar_RegisterVariable(&r_shadow_usenormalmap);
667 Cvar_RegisterVariable(&r_shadow_debuglight);
668 Cvar_RegisterVariable(&r_shadow_gloss);
669 Cvar_RegisterVariable(&r_shadow_gloss2intensity);
670 Cvar_RegisterVariable(&r_shadow_glossintensity);
671 Cvar_RegisterVariable(&r_shadow_glossexponent);
672 Cvar_RegisterVariable(&r_shadow_gloss2exponent);
673 Cvar_RegisterVariable(&r_shadow_glossexact);
674 Cvar_RegisterVariable(&r_shadow_lightattenuationdividebias);
675 Cvar_RegisterVariable(&r_shadow_lightattenuationlinearscale);
676 Cvar_RegisterVariable(&r_shadow_lightintensityscale);
677 Cvar_RegisterVariable(&r_shadow_lightradiusscale);
678 Cvar_RegisterVariable(&r_shadow_portallight);
679 Cvar_RegisterVariable(&r_shadow_projectdistance);
680 Cvar_RegisterVariable(&r_shadow_frontsidecasting);
681 Cvar_RegisterVariable(&r_shadow_realtime_dlight);
682 Cvar_RegisterVariable(&r_shadow_realtime_dlight_shadows);
683 Cvar_RegisterVariable(&r_shadow_realtime_dlight_svbspculling);
684 Cvar_RegisterVariable(&r_shadow_realtime_dlight_portalculling);
685 Cvar_RegisterVariable(&r_shadow_realtime_world);
686 Cvar_RegisterVariable(&r_shadow_realtime_world_lightmaps);
687 Cvar_RegisterVariable(&r_shadow_realtime_world_shadows);
688 Cvar_RegisterVariable(&r_shadow_realtime_world_compile);
689 Cvar_RegisterVariable(&r_shadow_realtime_world_compileshadow);
690 Cvar_RegisterVariable(&r_shadow_realtime_world_compilesvbsp);
691 Cvar_RegisterVariable(&r_shadow_realtime_world_compileportalculling);
692 Cvar_RegisterVariable(&r_shadow_scissor);
693 Cvar_RegisterVariable(&r_shadow_shadowmapping);
694 Cvar_RegisterVariable(&r_shadow_shadowmapping_vsdct);
695 Cvar_RegisterVariable(&r_shadow_shadowmapping_texturetype);
696 Cvar_RegisterVariable(&r_shadow_shadowmapping_filterquality);
697 Cvar_RegisterVariable(&r_shadow_shadowmapping_depthbits);
698 Cvar_RegisterVariable(&r_shadow_shadowmapping_precision);
699 Cvar_RegisterVariable(&r_shadow_shadowmapping_maxsize);
700 Cvar_RegisterVariable(&r_shadow_shadowmapping_minsize);
701 // Cvar_RegisterVariable(&r_shadow_shadowmapping_lod_bias);
702 // Cvar_RegisterVariable(&r_shadow_shadowmapping_lod_scale);
703 Cvar_RegisterVariable(&r_shadow_shadowmapping_bordersize);
704 Cvar_RegisterVariable(&r_shadow_shadowmapping_nearclip);
705 Cvar_RegisterVariable(&r_shadow_shadowmapping_bias);
706 Cvar_RegisterVariable(&r_shadow_shadowmapping_polygonfactor);
707 Cvar_RegisterVariable(&r_shadow_shadowmapping_polygonoffset);
708 Cvar_RegisterVariable(&r_shadow_culltriangles);
709 Cvar_RegisterVariable(&r_shadow_polygonfactor);
710 Cvar_RegisterVariable(&r_shadow_polygonoffset);
711 Cvar_RegisterVariable(&r_shadow_texture3d);
712 Cvar_RegisterVariable(&r_coronas);
713 Cvar_RegisterVariable(&r_coronas_occlusionsizescale);
714 Cvar_RegisterVariable(&r_coronas_occlusionquery);
715 Cvar_RegisterVariable(&gl_flashblend);
716 Cvar_RegisterVariable(&gl_ext_separatestencil);
717 Cvar_RegisterVariable(&gl_ext_stenciltwoside);
718 if (gamemode == GAME_TENEBRAE)
720 Cvar_SetValue("r_shadow_gloss", 2);
721 Cvar_SetValue("r_shadow_bumpscale_basetexture", 4);
723 Cmd_AddCommand("r_shadow_help", R_Shadow_Help_f, "prints documentation on console commands and variables used by realtime lighting and shadowing system");
724 R_Shadow_EditLights_Init();
725 Mem_ExpandableArray_NewArray(&r_shadow_worldlightsarray, r_main_mempool, sizeof(dlight_t), 128);
726 maxshadowtriangles = 0;
727 shadowelements = NULL;
728 maxshadowvertices = 0;
729 shadowvertex3f = NULL;
737 shadowmarklist = NULL;
742 shadowsideslist = NULL;
743 r_shadow_buffer_numleafpvsbytes = 0;
744 r_shadow_buffer_visitingleafpvs = NULL;
745 r_shadow_buffer_leafpvs = NULL;
746 r_shadow_buffer_leaflist = NULL;
747 r_shadow_buffer_numsurfacepvsbytes = 0;
748 r_shadow_buffer_surfacepvs = NULL;
749 r_shadow_buffer_surfacelist = NULL;
750 r_shadow_buffer_surfacesides = NULL;
751 r_shadow_buffer_shadowtrispvs = NULL;
752 r_shadow_buffer_lighttrispvs = NULL;
753 R_RegisterModule("R_Shadow", r_shadow_start, r_shadow_shutdown, r_shadow_newmap);
756 matrix4x4_t matrix_attenuationxyz =
759 {0.5, 0.0, 0.0, 0.5},
760 {0.0, 0.5, 0.0, 0.5},
761 {0.0, 0.0, 0.5, 0.5},
766 matrix4x4_t matrix_attenuationz =
769 {0.0, 0.0, 0.5, 0.5},
770 {0.0, 0.0, 0.0, 0.5},
771 {0.0, 0.0, 0.0, 0.5},
776 void R_Shadow_ResizeShadowArrays(int numvertices, int numtriangles, int vertscale, int triscale)
778 numvertices = ((numvertices + 255) & ~255) * vertscale;
779 numtriangles = ((numtriangles + 255) & ~255) * triscale;
780 // make sure shadowelements is big enough for this volume
781 if (maxshadowtriangles < numtriangles)
783 maxshadowtriangles = numtriangles;
785 Mem_Free(shadowelements);
786 shadowelements = (int *)Mem_Alloc(r_main_mempool, maxshadowtriangles * sizeof(int[3]));
788 // make sure shadowvertex3f is big enough for this volume
789 if (maxshadowvertices < numvertices)
791 maxshadowvertices = numvertices;
793 Mem_Free(shadowvertex3f);
794 shadowvertex3f = (float *)Mem_Alloc(r_main_mempool, maxshadowvertices * sizeof(float[3]));
798 static void R_Shadow_EnlargeLeafSurfaceTrisBuffer(int numleafs, int numsurfaces, int numshadowtriangles, int numlighttriangles)
800 int numleafpvsbytes = (((numleafs + 7) >> 3) + 255) & ~255;
801 int numsurfacepvsbytes = (((numsurfaces + 7) >> 3) + 255) & ~255;
802 int numshadowtrispvsbytes = (((numshadowtriangles + 7) >> 3) + 255) & ~255;
803 int numlighttrispvsbytes = (((numlighttriangles + 7) >> 3) + 255) & ~255;
804 if (r_shadow_buffer_numleafpvsbytes < numleafpvsbytes)
806 if (r_shadow_buffer_visitingleafpvs)
807 Mem_Free(r_shadow_buffer_visitingleafpvs);
808 if (r_shadow_buffer_leafpvs)
809 Mem_Free(r_shadow_buffer_leafpvs);
810 if (r_shadow_buffer_leaflist)
811 Mem_Free(r_shadow_buffer_leaflist);
812 r_shadow_buffer_numleafpvsbytes = numleafpvsbytes;
813 r_shadow_buffer_visitingleafpvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numleafpvsbytes);
814 r_shadow_buffer_leafpvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numleafpvsbytes);
815 r_shadow_buffer_leaflist = (int *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numleafpvsbytes * 8 * sizeof(*r_shadow_buffer_leaflist));
817 if (r_shadow_buffer_numsurfacepvsbytes < numsurfacepvsbytes)
819 if (r_shadow_buffer_surfacepvs)
820 Mem_Free(r_shadow_buffer_surfacepvs);
821 if (r_shadow_buffer_surfacelist)
822 Mem_Free(r_shadow_buffer_surfacelist);
823 if (r_shadow_buffer_surfacesides)
824 Mem_Free(r_shadow_buffer_surfacesides);
825 r_shadow_buffer_numsurfacepvsbytes = numsurfacepvsbytes;
826 r_shadow_buffer_surfacepvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numsurfacepvsbytes);
827 r_shadow_buffer_surfacelist = (int *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numsurfacepvsbytes * 8 * sizeof(*r_shadow_buffer_surfacelist));
828 r_shadow_buffer_surfacesides = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numsurfacepvsbytes * 8 * sizeof(*r_shadow_buffer_surfacelist));
830 if (r_shadow_buffer_numshadowtrispvsbytes < numshadowtrispvsbytes)
832 if (r_shadow_buffer_shadowtrispvs)
833 Mem_Free(r_shadow_buffer_shadowtrispvs);
834 r_shadow_buffer_numshadowtrispvsbytes = numshadowtrispvsbytes;
835 r_shadow_buffer_shadowtrispvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numshadowtrispvsbytes);
837 if (r_shadow_buffer_numlighttrispvsbytes < numlighttrispvsbytes)
839 if (r_shadow_buffer_lighttrispvs)
840 Mem_Free(r_shadow_buffer_lighttrispvs);
841 r_shadow_buffer_numlighttrispvsbytes = numlighttrispvsbytes;
842 r_shadow_buffer_lighttrispvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numlighttrispvsbytes);
846 void R_Shadow_PrepareShadowMark(int numtris)
848 // make sure shadowmark is big enough for this volume
849 if (maxshadowmark < numtris)
851 maxshadowmark = numtris;
853 Mem_Free(shadowmark);
855 Mem_Free(shadowmarklist);
856 shadowmark = (int *)Mem_Alloc(r_main_mempool, maxshadowmark * sizeof(*shadowmark));
857 shadowmarklist = (int *)Mem_Alloc(r_main_mempool, maxshadowmark * sizeof(*shadowmarklist));
861 // if shadowmarkcount wrapped we clear the array and adjust accordingly
862 if (shadowmarkcount == 0)
865 memset(shadowmark, 0, maxshadowmark * sizeof(*shadowmark));
870 void R_Shadow_PrepareShadowSides(int numtris)
872 if (maxshadowsides < numtris)
874 maxshadowsides = numtris;
876 Mem_Free(shadowsides);
878 Mem_Free(shadowsideslist);
879 shadowsides = (unsigned char *)Mem_Alloc(r_main_mempool, maxshadowsides * sizeof(*shadowsides));
880 shadowsideslist = (int *)Mem_Alloc(r_main_mempool, maxshadowsides * sizeof(*shadowsideslist));
885 static int R_Shadow_ConstructShadowVolume_ZFail(int innumvertices, int innumtris, const int *inelement3i, const int *inneighbor3i, const float *invertex3f, int *outnumvertices, int *outelement3i, float *outvertex3f, const float *projectorigin, const float *projectdirection, float projectdistance, int numshadowmarktris, const int *shadowmarktris)
888 int outtriangles = 0, outvertices = 0;
891 float ratio, direction[3], projectvector[3];
893 if (projectdirection)
894 VectorScale(projectdirection, projectdistance, projectvector);
896 VectorClear(projectvector);
898 // create the vertices
899 if (projectdirection)
901 for (i = 0;i < numshadowmarktris;i++)
903 element = inelement3i + shadowmarktris[i] * 3;
904 for (j = 0;j < 3;j++)
906 if (vertexupdate[element[j]] != vertexupdatenum)
908 vertexupdate[element[j]] = vertexupdatenum;
909 vertexremap[element[j]] = outvertices;
910 vertex = invertex3f + element[j] * 3;
911 // project one copy of the vertex according to projectvector
912 VectorCopy(vertex, outvertex3f);
913 VectorAdd(vertex, projectvector, (outvertex3f + 3));
922 for (i = 0;i < numshadowmarktris;i++)
924 element = inelement3i + shadowmarktris[i] * 3;
925 for (j = 0;j < 3;j++)
927 if (vertexupdate[element[j]] != vertexupdatenum)
929 vertexupdate[element[j]] = vertexupdatenum;
930 vertexremap[element[j]] = outvertices;
931 vertex = invertex3f + element[j] * 3;
932 // project one copy of the vertex to the sphere radius of the light
933 // (FIXME: would projecting it to the light box be better?)
934 VectorSubtract(vertex, projectorigin, direction);
935 ratio = projectdistance / VectorLength(direction);
936 VectorCopy(vertex, outvertex3f);
937 VectorMA(projectorigin, ratio, direction, (outvertex3f + 3));
945 if (r_shadow_frontsidecasting.integer)
947 for (i = 0;i < numshadowmarktris;i++)
949 int remappedelement[3];
951 const int *neighbortriangle;
953 markindex = shadowmarktris[i] * 3;
954 element = inelement3i + markindex;
955 neighbortriangle = inneighbor3i + markindex;
956 // output the front and back triangles
957 outelement3i[0] = vertexremap[element[0]];
958 outelement3i[1] = vertexremap[element[1]];
959 outelement3i[2] = vertexremap[element[2]];
960 outelement3i[3] = vertexremap[element[2]] + 1;
961 outelement3i[4] = vertexremap[element[1]] + 1;
962 outelement3i[5] = vertexremap[element[0]] + 1;
966 // output the sides (facing outward from this triangle)
967 if (shadowmark[neighbortriangle[0]] != shadowmarkcount)
969 remappedelement[0] = vertexremap[element[0]];
970 remappedelement[1] = vertexremap[element[1]];
971 outelement3i[0] = remappedelement[1];
972 outelement3i[1] = remappedelement[0];
973 outelement3i[2] = remappedelement[0] + 1;
974 outelement3i[3] = remappedelement[1];
975 outelement3i[4] = remappedelement[0] + 1;
976 outelement3i[5] = remappedelement[1] + 1;
981 if (shadowmark[neighbortriangle[1]] != shadowmarkcount)
983 remappedelement[1] = vertexremap[element[1]];
984 remappedelement[2] = vertexremap[element[2]];
985 outelement3i[0] = remappedelement[2];
986 outelement3i[1] = remappedelement[1];
987 outelement3i[2] = remappedelement[1] + 1;
988 outelement3i[3] = remappedelement[2];
989 outelement3i[4] = remappedelement[1] + 1;
990 outelement3i[5] = remappedelement[2] + 1;
995 if (shadowmark[neighbortriangle[2]] != shadowmarkcount)
997 remappedelement[0] = vertexremap[element[0]];
998 remappedelement[2] = vertexremap[element[2]];
999 outelement3i[0] = remappedelement[0];
1000 outelement3i[1] = remappedelement[2];
1001 outelement3i[2] = remappedelement[2] + 1;
1002 outelement3i[3] = remappedelement[0];
1003 outelement3i[4] = remappedelement[2] + 1;
1004 outelement3i[5] = remappedelement[0] + 1;
1013 for (i = 0;i < numshadowmarktris;i++)
1015 int remappedelement[3];
1017 const int *neighbortriangle;
1019 markindex = shadowmarktris[i] * 3;
1020 element = inelement3i + markindex;
1021 neighbortriangle = inneighbor3i + markindex;
1022 // output the front and back triangles
1023 outelement3i[0] = vertexremap[element[2]];
1024 outelement3i[1] = vertexremap[element[1]];
1025 outelement3i[2] = vertexremap[element[0]];
1026 outelement3i[3] = vertexremap[element[0]] + 1;
1027 outelement3i[4] = vertexremap[element[1]] + 1;
1028 outelement3i[5] = vertexremap[element[2]] + 1;
1032 // output the sides (facing outward from this triangle)
1033 if (shadowmark[neighbortriangle[0]] != shadowmarkcount)
1035 remappedelement[0] = vertexremap[element[0]];
1036 remappedelement[1] = vertexremap[element[1]];
1037 outelement3i[0] = remappedelement[0];
1038 outelement3i[1] = remappedelement[1];
1039 outelement3i[2] = remappedelement[1] + 1;
1040 outelement3i[3] = remappedelement[0];
1041 outelement3i[4] = remappedelement[1] + 1;
1042 outelement3i[5] = remappedelement[0] + 1;
1047 if (shadowmark[neighbortriangle[1]] != shadowmarkcount)
1049 remappedelement[1] = vertexremap[element[1]];
1050 remappedelement[2] = vertexremap[element[2]];
1051 outelement3i[0] = remappedelement[1];
1052 outelement3i[1] = remappedelement[2];
1053 outelement3i[2] = remappedelement[2] + 1;
1054 outelement3i[3] = remappedelement[1];
1055 outelement3i[4] = remappedelement[2] + 1;
1056 outelement3i[5] = remappedelement[1] + 1;
1061 if (shadowmark[neighbortriangle[2]] != shadowmarkcount)
1063 remappedelement[0] = vertexremap[element[0]];
1064 remappedelement[2] = vertexremap[element[2]];
1065 outelement3i[0] = remappedelement[2];
1066 outelement3i[1] = remappedelement[0];
1067 outelement3i[2] = remappedelement[0] + 1;
1068 outelement3i[3] = remappedelement[2];
1069 outelement3i[4] = remappedelement[0] + 1;
1070 outelement3i[5] = remappedelement[2] + 1;
1078 *outnumvertices = outvertices;
1079 return outtriangles;
1082 static int R_Shadow_ConstructShadowVolume_ZPass(int innumvertices, int innumtris, const int *inelement3i, const int *inneighbor3i, const float *invertex3f, int *outnumvertices, int *outelement3i, float *outvertex3f, const float *projectorigin, const float *projectdirection, float projectdistance, int numshadowmarktris, const int *shadowmarktris)
1085 int outtriangles = 0, outvertices = 0;
1087 const float *vertex;
1088 float ratio, direction[3], projectvector[3];
1091 if (projectdirection)
1092 VectorScale(projectdirection, projectdistance, projectvector);
1094 VectorClear(projectvector);
1096 for (i = 0;i < numshadowmarktris;i++)
1098 int remappedelement[3];
1100 const int *neighbortriangle;
1102 markindex = shadowmarktris[i] * 3;
1103 neighbortriangle = inneighbor3i + markindex;
1104 side[0] = shadowmark[neighbortriangle[0]] == shadowmarkcount;
1105 side[1] = shadowmark[neighbortriangle[1]] == shadowmarkcount;
1106 side[2] = shadowmark[neighbortriangle[2]] == shadowmarkcount;
1107 if (side[0] + side[1] + side[2] == 0)
1111 element = inelement3i + markindex;
1113 // create the vertices
1114 for (j = 0;j < 3;j++)
1116 if (side[j] + side[j+1] == 0)
1119 if (vertexupdate[k] != vertexupdatenum)
1121 vertexupdate[k] = vertexupdatenum;
1122 vertexremap[k] = outvertices;
1123 vertex = invertex3f + k * 3;
1124 VectorCopy(vertex, outvertex3f);
1125 if (projectdirection)
1127 // project one copy of the vertex according to projectvector
1128 VectorAdd(vertex, projectvector, (outvertex3f + 3));
1132 // project one copy of the vertex to the sphere radius of the light
1133 // (FIXME: would projecting it to the light box be better?)
1134 VectorSubtract(vertex, projectorigin, direction);
1135 ratio = projectdistance / VectorLength(direction);
1136 VectorMA(projectorigin, ratio, direction, (outvertex3f + 3));
1143 // output the sides (facing outward from this triangle)
1146 remappedelement[0] = vertexremap[element[0]];
1147 remappedelement[1] = vertexremap[element[1]];
1148 outelement3i[0] = remappedelement[1];
1149 outelement3i[1] = remappedelement[0];
1150 outelement3i[2] = remappedelement[0] + 1;
1151 outelement3i[3] = remappedelement[1];
1152 outelement3i[4] = remappedelement[0] + 1;
1153 outelement3i[5] = remappedelement[1] + 1;
1160 remappedelement[1] = vertexremap[element[1]];
1161 remappedelement[2] = vertexremap[element[2]];
1162 outelement3i[0] = remappedelement[2];
1163 outelement3i[1] = remappedelement[1];
1164 outelement3i[2] = remappedelement[1] + 1;
1165 outelement3i[3] = remappedelement[2];
1166 outelement3i[4] = remappedelement[1] + 1;
1167 outelement3i[5] = remappedelement[2] + 1;
1174 remappedelement[0] = vertexremap[element[0]];
1175 remappedelement[2] = vertexremap[element[2]];
1176 outelement3i[0] = remappedelement[0];
1177 outelement3i[1] = remappedelement[2];
1178 outelement3i[2] = remappedelement[2] + 1;
1179 outelement3i[3] = remappedelement[0];
1180 outelement3i[4] = remappedelement[2] + 1;
1181 outelement3i[5] = remappedelement[0] + 1;
1188 *outnumvertices = outvertices;
1189 return outtriangles;
1192 void R_Shadow_MarkVolumeFromBox(int firsttriangle, int numtris, const float *invertex3f, const int *elements, const vec3_t projectorigin, const vec3_t projectdirection, const vec3_t lightmins, const vec3_t lightmaxs, const vec3_t surfacemins, const vec3_t surfacemaxs)
1198 if (!BoxesOverlap(lightmins, lightmaxs, surfacemins, surfacemaxs))
1200 tend = firsttriangle + numtris;
1201 if (BoxInsideBox(surfacemins, surfacemaxs, lightmins, lightmaxs))
1203 // surface box entirely inside light box, no box cull
1204 if (projectdirection)
1206 for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
1208 TriangleNormal(invertex3f + e[0] * 3, invertex3f + e[1] * 3, invertex3f + e[2] * 3, normal);
1209 if (r_shadow_frontsidecasting.integer == (DotProduct(normal, projectdirection) < 0))
1210 shadowmarklist[numshadowmark++] = t;
1215 for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
1216 if (r_shadow_frontsidecasting.integer == PointInfrontOfTriangle(projectorigin, invertex3f + e[0] * 3, invertex3f + e[1] * 3, invertex3f + e[2] * 3))
1217 shadowmarklist[numshadowmark++] = t;
1222 // surface box not entirely inside light box, cull each triangle
1223 if (projectdirection)
1225 for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
1227 v[0] = invertex3f + e[0] * 3;
1228 v[1] = invertex3f + e[1] * 3;
1229 v[2] = invertex3f + e[2] * 3;
1230 TriangleNormal(v[0], v[1], v[2], normal);
1231 if (r_shadow_frontsidecasting.integer == (DotProduct(normal, projectdirection) < 0)
1232 && TriangleOverlapsBox(v[0], v[1], v[2], lightmins, lightmaxs))
1233 shadowmarklist[numshadowmark++] = t;
1238 for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
1240 v[0] = invertex3f + e[0] * 3;
1241 v[1] = invertex3f + e[1] * 3;
1242 v[2] = invertex3f + e[2] * 3;
1243 if (r_shadow_frontsidecasting.integer == PointInfrontOfTriangle(projectorigin, v[0], v[1], v[2])
1244 && TriangleOverlapsBox(v[0], v[1], v[2], lightmins, lightmaxs))
1245 shadowmarklist[numshadowmark++] = t;
1251 qboolean R_Shadow_UseZPass(vec3_t mins, vec3_t maxs)
1256 if (r_shadow_compilingrtlight || !r_shadow_frontsidecasting.integer || !r_shadow_usezpassifpossible.integer)
1258 // check if the shadow volume intersects the near plane
1260 // a ray between the eye and light origin may intersect the caster,
1261 // indicating that the shadow may touch the eye location, however we must
1262 // test the near plane (a polygon), not merely the eye location, so it is
1263 // easiest to enlarge the caster bounding shape slightly for this.
1269 void R_Shadow_VolumeFromList(int numverts, int numtris, const float *invertex3f, const int *elements, const int *neighbors, const vec3_t projectorigin, const vec3_t projectdirection, float projectdistance, int nummarktris, const int *marktris, vec3_t trismins, vec3_t trismaxs)
1271 int i, tris, outverts;
1272 if (projectdistance < 0.1)
1274 Con_Printf("R_Shadow_Volume: projectdistance %f\n", projectdistance);
1277 if (!numverts || !nummarktris)
1279 // make sure shadowelements is big enough for this volume
1280 if (maxshadowtriangles < nummarktris*8 || maxshadowvertices < numverts*2)
1281 R_Shadow_ResizeShadowArrays(numverts, nummarktris, 2, 8);
1283 if (maxvertexupdate < numverts)
1285 maxvertexupdate = numverts;
1287 Mem_Free(vertexupdate);
1289 Mem_Free(vertexremap);
1290 vertexupdate = (int *)Mem_Alloc(r_main_mempool, maxvertexupdate * sizeof(int));
1291 vertexremap = (int *)Mem_Alloc(r_main_mempool, maxvertexupdate * sizeof(int));
1292 vertexupdatenum = 0;
1295 if (vertexupdatenum == 0)
1297 vertexupdatenum = 1;
1298 memset(vertexupdate, 0, maxvertexupdate * sizeof(int));
1299 memset(vertexremap, 0, maxvertexupdate * sizeof(int));
1302 for (i = 0;i < nummarktris;i++)
1303 shadowmark[marktris[i]] = shadowmarkcount;
1305 if (r_shadow_compilingrtlight)
1307 // if we're compiling an rtlight, capture the mesh
1308 //tris = R_Shadow_ConstructShadowVolume_ZPass(numverts, numtris, elements, neighbors, invertex3f, &outverts, shadowelements, shadowvertex3f, projectorigin, projectdirection, projectdistance, nummarktris, marktris);
1309 //Mod_ShadowMesh_AddMesh(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_zpass, NULL, NULL, NULL, shadowvertex3f, NULL, NULL, NULL, NULL, tris, shadowelements);
1310 tris = R_Shadow_ConstructShadowVolume_ZFail(numverts, numtris, elements, neighbors, invertex3f, &outverts, shadowelements, shadowvertex3f, projectorigin, projectdirection, projectdistance, nummarktris, marktris);
1311 Mod_ShadowMesh_AddMesh(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_zfail, NULL, NULL, NULL, shadowvertex3f, NULL, NULL, NULL, NULL, tris, shadowelements);
1315 // decide which type of shadow to generate and set stencil mode
1316 R_Shadow_RenderMode_StencilShadowVolumes(R_Shadow_UseZPass(trismins, trismaxs));
1317 // generate the sides or a solid volume, depending on type
1318 if (r_shadow_rendermode >= R_SHADOW_RENDERMODE_ZPASS_STENCIL && r_shadow_rendermode <= R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE)
1319 tris = R_Shadow_ConstructShadowVolume_ZPass(numverts, numtris, elements, neighbors, invertex3f, &outverts, shadowelements, shadowvertex3f, projectorigin, projectdirection, projectdistance, nummarktris, marktris);
1321 tris = R_Shadow_ConstructShadowVolume_ZFail(numverts, numtris, elements, neighbors, invertex3f, &outverts, shadowelements, shadowvertex3f, projectorigin, projectdirection, projectdistance, nummarktris, marktris);
1322 r_refdef.stats.lights_dynamicshadowtriangles += tris;
1323 r_refdef.stats.lights_shadowtriangles += tris;
1325 R_Mesh_VertexPointer(shadowvertex3f, 0, 0);
1326 GL_LockArrays(0, outverts);
1327 if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZPASS_STENCIL)
1329 // increment stencil if frontface is infront of depthbuffer
1330 GL_CullFace(r_refdef.view.cullface_front);
1331 qglStencilOp(GL_KEEP, GL_KEEP, GL_DECR);CHECKGLERROR
1332 R_Mesh_Draw(0, outverts, 0, tris, shadowelements, NULL, 0, 0);
1333 // decrement stencil if backface is infront of depthbuffer
1334 GL_CullFace(r_refdef.view.cullface_back);
1335 qglStencilOp(GL_KEEP, GL_KEEP, GL_INCR);CHECKGLERROR
1337 else if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZFAIL_STENCIL)
1339 // decrement stencil if backface is behind depthbuffer
1340 GL_CullFace(r_refdef.view.cullface_front);
1341 qglStencilOp(GL_KEEP, GL_DECR, GL_KEEP);CHECKGLERROR
1342 R_Mesh_Draw(0, outverts, 0, tris, shadowelements, NULL, 0, 0);
1343 // increment stencil if frontface is behind depthbuffer
1344 GL_CullFace(r_refdef.view.cullface_back);
1345 qglStencilOp(GL_KEEP, GL_INCR, GL_KEEP);CHECKGLERROR
1347 R_Mesh_Draw(0, outverts, 0, tris, shadowelements, NULL, 0, 0);
1348 GL_LockArrays(0, 0);
1353 int R_Shadow_CalcTriangleSideMask(const vec3_t p1, const vec3_t p2, const vec3_t p3, float bias)
1355 // p1, p2, p3 are in the cubemap's local coordinate system
1356 // bias = border/(size - border)
1359 float dp1 = p1[0] + p1[1], dn1 = p1[0] - p1[1], ap1 = fabs(dp1), an1 = fabs(dn1),
1360 dp2 = p2[0] + p2[1], dn2 = p2[0] - p2[1], ap2 = fabs(dp2), an2 = fabs(dn2),
1361 dp3 = p3[0] + p3[1], dn3 = p3[0] - p3[1], ap3 = fabs(dp3), an3 = fabs(dn3);
1362 if(ap1 > bias*an1 && ap2 > bias*an2 && ap3 > bias*an3)
1364 | (dp1 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2))
1365 | (dp2 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2))
1366 | (dp3 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2));
1367 if(an1 > bias*ap1 && an2 > bias*ap2 && an3 > bias*ap3)
1369 | (dn1 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2))
1370 | (dn2 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2))
1371 | (dn3 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2));
1373 dp1 = p1[1] + p1[2], dn1 = p1[1] - p1[2], ap1 = fabs(dp1), an1 = fabs(dn1),
1374 dp2 = p2[1] + p2[2], dn2 = p2[1] - p2[2], ap2 = fabs(dp2), an2 = fabs(dn2),
1375 dp3 = p3[1] + p3[2], dn3 = p3[1] - p3[2], ap3 = fabs(dp3), an3 = fabs(dn3);
1376 if(ap1 > bias*an1 && ap2 > bias*an2 && ap3 > bias*an3)
1378 | (dp1 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4))
1379 | (dp2 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4))
1380 | (dp3 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4));
1381 if(an1 > bias*ap1 && an2 > bias*ap2 && an3 > bias*ap3)
1383 | (dn1 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4))
1384 | (dn2 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4))
1385 | (dn3 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4));
1387 dp1 = p1[2] + p1[0], dn1 = p1[2] - p1[0], ap1 = fabs(dp1), an1 = fabs(dn1),
1388 dp2 = p2[2] + p2[0], dn2 = p2[2] - p2[0], ap2 = fabs(dp2), an2 = fabs(dn2),
1389 dp3 = p3[2] + p3[0], dn3 = p3[2] - p3[0], ap3 = fabs(dp3), an3 = fabs(dn3);
1390 if(ap1 > bias*an1 && ap2 > bias*an2 && ap3 > bias*an3)
1392 | (dp1 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0))
1393 | (dp2 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0))
1394 | (dp3 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0));
1395 if(an1 > bias*ap1 && an2 > bias*ap2 && an3 > bias*ap3)
1397 | (dn1 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0))
1398 | (dn2 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0))
1399 | (dn3 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0));
1404 int R_Shadow_CalcBBoxSideMask(const vec3_t mins, const vec3_t maxs, const matrix4x4_t *worldtolight, const matrix4x4_t *radiustolight, float bias)
1406 vec3_t center, radius, lightcenter, lightradius, pmin, pmax;
1407 float dp1, dn1, ap1, an1, dp2, dn2, ap2, an2;
1410 VectorSubtract(maxs, mins, radius);
1411 VectorScale(radius, 0.5f, radius);
1412 VectorAdd(mins, radius, center);
1413 Matrix4x4_Transform(worldtolight, center, lightcenter);
1414 Matrix4x4_Transform3x3(radiustolight, radius, lightradius);
1415 VectorSubtract(lightcenter, lightradius, pmin);
1416 VectorAdd(lightcenter, lightradius, pmax);
1418 dp1 = pmax[0] + pmax[1], dn1 = pmax[0] - pmin[1], ap1 = fabs(dp1), an1 = fabs(dn1),
1419 dp2 = pmin[0] + pmin[1], dn2 = pmin[0] - pmax[1], ap2 = fabs(dp2), an2 = fabs(dn2);
1420 if(ap1 > bias*an1 && ap2 > bias*an2)
1422 | (dp1 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2))
1423 | (dp2 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2));
1424 if(an1 > bias*ap1 && an2 > bias*ap2)
1426 | (dn1 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2))
1427 | (dn2 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2));
1429 dp1 = pmax[1] + pmax[2], dn1 = pmax[1] - pmin[2], ap1 = fabs(dp1), an1 = fabs(dn1),
1430 dp2 = pmin[1] + pmin[2], dn2 = pmin[1] - pmax[2], ap2 = fabs(dp2), an2 = fabs(dn2);
1431 if(ap1 > bias*an1 && ap2 > bias*an2)
1433 | (dp1 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4))
1434 | (dp2 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4));
1435 if(an1 > bias*ap1 && an2 > bias*ap2)
1437 | (dn1 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4))
1438 | (dn2 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4));
1440 dp1 = pmax[2] + pmax[0], dn1 = pmax[2] - pmin[0], ap1 = fabs(dp1), an1 = fabs(dn1),
1441 dp2 = pmin[2] + pmin[0], dn2 = pmin[2] - pmax[0], ap2 = fabs(dp2), an2 = fabs(dn2);
1442 if(ap1 > bias*an1 && ap2 > bias*an2)
1444 | (dp1 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0))
1445 | (dp2 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0));
1446 if(an1 > bias*ap1 && an2 > bias*ap2)
1448 | (dn1 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0))
1449 | (dn2 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0));
1454 #define R_Shadow_CalcEntitySideMask(ent, worldtolight, radiustolight, bias) R_Shadow_CalcBBoxSideMask((ent)->mins, (ent)->maxs, worldtolight, radiustolight, bias)
1456 int R_Shadow_CalcSphereSideMask(const vec3_t p, float radius, float bias)
1458 // p is in the cubemap's local coordinate system
1459 // bias = border/(size - border)
1460 float dxyp = p[0] + p[1], dxyn = p[0] - p[1], axyp = fabs(dxyp), axyn = fabs(dxyn);
1461 float dyzp = p[1] + p[2], dyzn = p[1] - p[2], ayzp = fabs(dyzp), ayzn = fabs(dyzn);
1462 float dzxp = p[2] + p[0], dzxn = p[2] - p[0], azxp = fabs(dzxp), azxn = fabs(dzxn);
1464 if(axyp > bias*axyn + radius) mask &= dxyp < 0 ? ~((1<<0)|(1<<2)) : ~((2<<0)|(2<<2));
1465 if(axyn > bias*axyp + radius) mask &= dxyn < 0 ? ~((1<<0)|(2<<2)) : ~((2<<0)|(1<<2));
1466 if(ayzp > bias*ayzn + radius) mask &= dyzp < 0 ? ~((1<<2)|(1<<4)) : ~((2<<2)|(2<<4));
1467 if(ayzn > bias*ayzp + radius) mask &= dyzn < 0 ? ~((1<<2)|(2<<4)) : ~((2<<2)|(1<<4));
1468 if(azxp > bias*azxn + radius) mask &= dzxp < 0 ? ~((1<<4)|(1<<0)) : ~((2<<4)|(2<<0));
1469 if(azxn > bias*azxp + radius) mask &= dzxn < 0 ? ~((1<<4)|(2<<0)) : ~((2<<4)|(1<<0));
1473 int R_Shadow_CullFrustumSides(rtlight_t *rtlight, float size, float border)
1477 int sides = 0x3F, masks[6] = { 3<<4, 3<<4, 3<<0, 3<<0, 3<<2, 3<<2 };
1478 float scale = (size - 2*border)/size, len;
1479 float bias = border / (float)(size - border), dp, dn, ap, an;
1480 // check if cone enclosing side would cross frustum plane
1481 scale = 2 / (scale*scale + 2);
1482 for (i = 0;i < 5;i++)
1484 if (PlaneDiff(rtlight->shadoworigin, &r_refdef.view.frustum[i]) > -0.03125)
1486 Matrix4x4_Transform3x3(&rtlight->matrix_worldtolight, r_refdef.view.frustum[i].normal, n);
1487 len = scale*VectorLength2(n);
1488 if(n[0]*n[0] > len) sides &= n[0] < 0 ? ~(1<<0) : ~(2 << 0);
1489 if(n[1]*n[1] > len) sides &= n[1] < 0 ? ~(1<<2) : ~(2 << 2);
1490 if(n[2]*n[2] > len) sides &= n[2] < 0 ? ~(1<<4) : ~(2 << 4);
1492 if (PlaneDiff(rtlight->shadoworigin, &r_refdef.view.frustum[4]) >= r_refdef.farclip - r_refdef.nearclip + 0.03125)
1494 Matrix4x4_Transform3x3(&rtlight->matrix_worldtolight, r_refdef.view.frustum[4].normal, n);
1495 len = scale*VectorLength(n);
1496 if(n[0]*n[0] > len) sides &= n[0] >= 0 ? ~(1<<0) : ~(2 << 0);
1497 if(n[1]*n[1] > len) sides &= n[1] >= 0 ? ~(1<<2) : ~(2 << 2);
1498 if(n[2]*n[2] > len) sides &= n[2] >= 0 ? ~(1<<4) : ~(2 << 4);
1500 // this next test usually clips off more sides than the former, but occasionally clips fewer/different ones, so do both and combine results
1501 // check if frustum corners/origin cross plane sides
1502 for (i = 0;i < 5;i++)
1504 Matrix4x4_Transform(&rtlight->matrix_worldtolight, !i ? r_refdef.view.origin : r_refdef.view.frustumcorner[i-1], p);
1505 dp = p[0] + p[1], dn = p[0] - p[1], ap = fabs(dp), an = fabs(dn),
1506 masks[0] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2));
1507 masks[1] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2));
1508 dp = p[1] + p[2], dn = p[1] - p[2], ap = fabs(dp), an = fabs(dn),
1509 masks[2] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4));
1510 masks[3] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4));
1511 dp = p[2] + p[0], dn = p[2] - p[0], ap = fabs(dp), an = fabs(dn),
1512 masks[4] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0));
1513 masks[5] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0));
1515 return sides & masks[0] & masks[1] & masks[2] & masks[3] & masks[4] & masks[5];
1518 int R_Shadow_ChooseSidesFromBox(int firsttriangle, int numtris, const float *invertex3f, const int *elements, const matrix4x4_t *worldtolight, const vec3_t projectorigin, const vec3_t projectdirection, const vec3_t lightmins, const vec3_t lightmaxs, const vec3_t surfacemins, const vec3_t surfacemaxs, int *totals)
1526 int mask, surfacemask = 0;
1527 if (!BoxesOverlap(lightmins, lightmaxs, surfacemins, surfacemaxs))
1529 bias = r_shadow_shadowmapborder / (float)(r_shadow_shadowmapmaxsize - r_shadow_shadowmapborder);
1530 tend = firsttriangle + numtris;
1531 if (BoxInsideBox(surfacemins, surfacemaxs, lightmins, lightmaxs))
1533 // surface box entirely inside light box, no box cull
1534 if (projectdirection)
1536 for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
1538 v[0] = invertex3f + e[0] * 3, v[1] = invertex3f + e[1] * 3, v[2] = invertex3f + e[2] * 3;
1539 TriangleNormal(v[0], v[1], v[2], normal);
1540 if (r_shadow_frontsidecasting.integer == (DotProduct(normal, projectdirection) < 0))
1542 Matrix4x4_Transform(worldtolight, v[0], p[0]), Matrix4x4_Transform(worldtolight, v[1], p[1]), Matrix4x4_Transform(worldtolight, v[2], p[2]);
1543 mask = R_Shadow_CalcTriangleSideMask(p[0], p[1], p[2], bias);
1544 surfacemask |= mask;
1547 totals[0] += mask&1, totals[1] += (mask>>1)&1, totals[2] += (mask>>2)&1, totals[3] += (mask>>3)&1, totals[4] += (mask>>4)&1, totals[5] += mask>>5;
1548 shadowsides[numshadowsides] = mask;
1549 shadowsideslist[numshadowsides++] = t;
1556 for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
1558 v[0] = invertex3f + e[0] * 3, v[1] = invertex3f + e[1] * 3, v[2] = invertex3f + e[2] * 3;
1559 if (r_shadow_frontsidecasting.integer == PointInfrontOfTriangle(projectorigin, v[0], v[1], v[2]))
1561 Matrix4x4_Transform(worldtolight, v[0], p[0]), Matrix4x4_Transform(worldtolight, v[1], p[1]), Matrix4x4_Transform(worldtolight, v[2], p[2]);
1562 mask = R_Shadow_CalcTriangleSideMask(p[0], p[1], p[2], bias);
1563 surfacemask |= mask;
1566 totals[0] += mask&1, totals[1] += (mask>>1)&1, totals[2] += (mask>>2)&1, totals[3] += (mask>>3)&1, totals[4] += (mask>>4)&1, totals[5] += mask>>5;
1567 shadowsides[numshadowsides] = mask;
1568 shadowsideslist[numshadowsides++] = t;
1576 // surface box not entirely inside light box, cull each triangle
1577 if (projectdirection)
1579 for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
1581 v[0] = invertex3f + e[0] * 3, v[1] = invertex3f + e[1] * 3, v[2] = invertex3f + e[2] * 3;
1582 TriangleNormal(v[0], v[1], v[2], normal);
1583 if (r_shadow_frontsidecasting.integer == (DotProduct(normal, projectdirection) < 0)
1584 && TriangleOverlapsBox(v[0], v[1], v[2], lightmins, lightmaxs))
1586 Matrix4x4_Transform(worldtolight, v[0], p[0]), Matrix4x4_Transform(worldtolight, v[1], p[1]), Matrix4x4_Transform(worldtolight, v[2], p[2]);
1587 mask = R_Shadow_CalcTriangleSideMask(p[0], p[1], p[2], bias);
1588 surfacemask |= mask;
1591 totals[0] += mask&1, totals[1] += (mask>>1)&1, totals[2] += (mask>>2)&1, totals[3] += (mask>>3)&1, totals[4] += (mask>>4)&1, totals[5] += mask>>5;
1592 shadowsides[numshadowsides] = mask;
1593 shadowsideslist[numshadowsides++] = t;
1600 for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
1602 v[0] = invertex3f + e[0] * 3, v[1] = invertex3f + e[1] * 3, v[2] = invertex3f + e[2] * 3;
1603 if (r_shadow_frontsidecasting.integer == PointInfrontOfTriangle(projectorigin, v[0], v[1], v[2])
1604 && TriangleOverlapsBox(v[0], v[1], v[2], lightmins, lightmaxs))
1606 Matrix4x4_Transform(worldtolight, v[0], p[0]), Matrix4x4_Transform(worldtolight, v[1], p[1]), Matrix4x4_Transform(worldtolight, v[2], p[2]);
1607 mask = R_Shadow_CalcTriangleSideMask(p[0], p[1], p[2], bias);
1608 surfacemask |= mask;
1611 totals[0] += mask&1, totals[1] += (mask>>1)&1, totals[2] += (mask>>2)&1, totals[3] += (mask>>3)&1, totals[4] += (mask>>4)&1, totals[5] += mask>>5;
1612 shadowsides[numshadowsides] = mask;
1613 shadowsideslist[numshadowsides++] = t;
1622 void R_Shadow_ShadowMapFromList(int numverts, int numtris, const float *vertex3f, const int *elements, int numsidetris, const int *sidetotals, const unsigned char *sides, const int *sidetris)
1624 int i, j, outtriangles = 0;
1625 int *outelement3i[6];
1626 if (!numverts || !numsidetris || !r_shadow_compilingrtlight)
1628 outtriangles = sidetotals[0] + sidetotals[1] + sidetotals[2] + sidetotals[3] + sidetotals[4] + sidetotals[5];
1629 // make sure shadowelements is big enough for this mesh
1630 if (maxshadowtriangles < outtriangles)
1631 R_Shadow_ResizeShadowArrays(0, outtriangles, 0, 1);
1633 // compute the offset and size of the separate index lists for each cubemap side
1635 for (i = 0;i < 6;i++)
1637 outelement3i[i] = shadowelements + outtriangles * 3;
1638 r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap->sideoffsets[i] = outtriangles;
1639 r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap->sidetotals[i] = sidetotals[i];
1640 outtriangles += sidetotals[i];
1643 // gather up the (sparse) triangles into separate index lists for each cubemap side
1644 for (i = 0;i < numsidetris;i++)
1646 const int *element = elements + sidetris[i] * 3;
1647 for (j = 0;j < 6;j++)
1649 if (sides[i] & (1 << j))
1651 outelement3i[j][0] = element[0];
1652 outelement3i[j][1] = element[1];
1653 outelement3i[j][2] = element[2];
1654 outelement3i[j] += 3;
1659 Mod_ShadowMesh_AddMesh(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap, NULL, NULL, NULL, vertex3f, NULL, NULL, NULL, NULL, outtriangles, shadowelements);
1662 static void R_Shadow_MakeTextures_MakeCorona(void)
1666 unsigned char pixels[32][32][4];
1667 for (y = 0;y < 32;y++)
1669 dy = (y - 15.5f) * (1.0f / 16.0f);
1670 for (x = 0;x < 32;x++)
1672 dx = (x - 15.5f) * (1.0f / 16.0f);
1673 a = (int)(((1.0f / (dx * dx + dy * dy + 0.2f)) - (1.0f / (1.0f + 0.2))) * 32.0f / (1.0f / (1.0f + 0.2)));
1674 a = bound(0, a, 255);
1675 pixels[y][x][0] = a;
1676 pixels[y][x][1] = a;
1677 pixels[y][x][2] = a;
1678 pixels[y][x][3] = 255;
1681 r_shadow_lightcorona = R_LoadTexture2D(r_shadow_texturepool, "lightcorona", 32, 32, &pixels[0][0][0], TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_FORCELINEAR, NULL);
1684 static unsigned int R_Shadow_MakeTextures_SamplePoint(float x, float y, float z)
1686 float dist = sqrt(x*x+y*y+z*z);
1687 float intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
1688 // note this code could suffer byte order issues except that it is multiplying by an integer that reads the same both ways
1689 return (unsigned char)bound(0, intensity * 256.0f, 255) * 0x01010101;
1692 static void R_Shadow_MakeTextures(void)
1695 float intensity, dist;
1697 R_Shadow_FreeShadowMaps();
1698 R_FreeTexturePool(&r_shadow_texturepool);
1699 r_shadow_texturepool = R_AllocTexturePool();
1700 r_shadow_attenlinearscale = r_shadow_lightattenuationlinearscale.value;
1701 r_shadow_attendividebias = r_shadow_lightattenuationdividebias.value;
1702 data = (unsigned int *)Mem_Alloc(tempmempool, max(max(ATTEN3DSIZE*ATTEN3DSIZE*ATTEN3DSIZE, ATTEN2DSIZE*ATTEN2DSIZE), ATTEN1DSIZE) * 4);
1703 // the table includes one additional value to avoid the need to clamp indexing due to minor math errors
1704 for (x = 0;x <= ATTENTABLESIZE;x++)
1706 dist = (x + 0.5f) * (1.0f / ATTENTABLESIZE) * (1.0f / 0.9375);
1707 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
1708 r_shadow_attentable[x] = bound(0, intensity, 1);
1710 // 1D gradient texture
1711 for (x = 0;x < ATTEN1DSIZE;x++)
1712 data[x] = R_Shadow_MakeTextures_SamplePoint((x + 0.5f) * (1.0f / ATTEN1DSIZE) * (1.0f / 0.9375), 0, 0);
1713 r_shadow_attenuationgradienttexture = R_LoadTexture2D(r_shadow_texturepool, "attenuation1d", ATTEN1DSIZE, 1, (unsigned char *)data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_CLAMP | TEXF_ALPHA | TEXF_FORCELINEAR, NULL);
1714 // 2D circle texture
1715 for (y = 0;y < ATTEN2DSIZE;y++)
1716 for (x = 0;x < ATTEN2DSIZE;x++)
1717 data[y*ATTEN2DSIZE+x] = R_Shadow_MakeTextures_SamplePoint(((x + 0.5f) * (2.0f / ATTEN2DSIZE) - 1.0f) * (1.0f / 0.9375), ((y + 0.5f) * (2.0f / ATTEN2DSIZE) - 1.0f) * (1.0f / 0.9375), 0);
1718 r_shadow_attenuation2dtexture = R_LoadTexture2D(r_shadow_texturepool, "attenuation2d", ATTEN2DSIZE, ATTEN2DSIZE, (unsigned char *)data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_CLAMP | TEXF_ALPHA | TEXF_FORCELINEAR, NULL);
1719 // 3D sphere texture
1720 if (r_shadow_texture3d.integer && gl_texture3d)
1722 for (z = 0;z < ATTEN3DSIZE;z++)
1723 for (y = 0;y < ATTEN3DSIZE;y++)
1724 for (x = 0;x < ATTEN3DSIZE;x++)
1725 data[(z*ATTEN3DSIZE+y)*ATTEN3DSIZE+x] = R_Shadow_MakeTextures_SamplePoint(((x + 0.5f) * (2.0f / ATTEN3DSIZE) - 1.0f) * (1.0f / 0.9375), ((y + 0.5f) * (2.0f / ATTEN3DSIZE) - 1.0f) * (1.0f / 0.9375), ((z + 0.5f) * (2.0f / ATTEN3DSIZE) - 1.0f) * (1.0f / 0.9375));
1726 r_shadow_attenuation3dtexture = R_LoadTexture3D(r_shadow_texturepool, "attenuation3d", ATTEN3DSIZE, ATTEN3DSIZE, ATTEN3DSIZE, (unsigned char *)data, TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_CLAMP | TEXF_ALPHA | TEXF_FORCELINEAR, NULL);
1729 r_shadow_attenuation3dtexture = NULL;
1732 R_Shadow_MakeTextures_MakeCorona();
1734 // Editor light sprites
1735 r_editlights_sprcursor = Draw_CachePic ("gfx/editlights/cursor");
1736 r_editlights_sprlight = Draw_CachePic ("gfx/editlights/light");
1737 r_editlights_sprnoshadowlight = Draw_CachePic ("gfx/editlights/noshadow");
1738 r_editlights_sprcubemaplight = Draw_CachePic ("gfx/editlights/cubemaplight");
1739 r_editlights_sprcubemapnoshadowlight = Draw_CachePic ("gfx/editlights/cubemapnoshadowlight");
1740 r_editlights_sprselection = Draw_CachePic ("gfx/editlights/selection");
1743 void R_Shadow_ValidateCvars(void)
1745 if (r_shadow_texture3d.integer && !gl_texture3d)
1746 Cvar_SetValueQuick(&r_shadow_texture3d, 0);
1747 if (gl_ext_separatestencil.integer && !gl_support_separatestencil)
1748 Cvar_SetValueQuick(&gl_ext_separatestencil, 0);
1749 if (gl_ext_stenciltwoside.integer && !gl_support_stenciltwoside)
1750 Cvar_SetValueQuick(&gl_ext_stenciltwoside, 0);
1753 void R_Shadow_RenderMode_Begin(void)
1759 R_Shadow_ValidateCvars();
1761 if (!r_shadow_attenuation2dtexture
1762 || (!r_shadow_attenuation3dtexture && r_shadow_texture3d.integer)
1763 || r_shadow_lightattenuationdividebias.value != r_shadow_attendividebias
1764 || r_shadow_lightattenuationlinearscale.value != r_shadow_attenlinearscale)
1765 R_Shadow_MakeTextures();
1768 R_Mesh_ColorPointer(NULL, 0, 0);
1769 R_Mesh_ResetTextureState();
1770 GL_BlendFunc(GL_ONE, GL_ZERO);
1771 GL_DepthRange(0, 1);
1772 GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
1774 GL_DepthMask(false);
1775 GL_Color(0, 0, 0, 1);
1776 GL_Scissor(r_refdef.view.viewport.x, r_refdef.view.viewport.y, r_refdef.view.viewport.width, r_refdef.view.viewport.height);
1778 r_shadow_rendermode = R_SHADOW_RENDERMODE_NONE;
1780 if (gl_ext_separatestencil.integer)
1782 r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_ZPASS_SEPARATESTENCIL;
1783 r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_ZFAIL_SEPARATESTENCIL;
1785 else if (gl_ext_stenciltwoside.integer)
1787 r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE;
1788 r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_ZFAIL_STENCILTWOSIDE;
1792 r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_ZPASS_STENCIL;
1793 r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_ZFAIL_STENCIL;
1796 if (r_glsl.integer && gl_support_fragment_shader)
1797 r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_GLSL;
1798 else if (gl_dot3arb && gl_texturecubemap && r_shadow_dot3.integer && gl_stencil)
1799 r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_DOT3;
1801 r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_VERTEX;
1805 qglGetIntegerv(GL_DRAW_BUFFER, &drawbuffer);CHECKGLERROR
1806 qglGetIntegerv(GL_READ_BUFFER, &readbuffer);CHECKGLERROR
1807 r_shadow_drawbuffer = drawbuffer;
1808 r_shadow_readbuffer = readbuffer;
1810 r_shadow_cullface_front = r_refdef.view.cullface_front;
1811 r_shadow_cullface_back = r_refdef.view.cullface_back;
1814 void R_Shadow_RenderMode_ActiveLight(const rtlight_t *rtlight)
1816 rsurface.rtlight = rtlight;
1819 void R_Shadow_RenderMode_Reset(void)
1822 if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE || r_shadow_rendermode == R_SHADOW_RENDERMODE_ZFAIL_STENCILTWOSIDE)
1824 qglDisable(GL_STENCIL_TEST_TWO_SIDE_EXT);CHECKGLERROR
1826 if (gl_support_ext_framebuffer_object)
1828 qglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);CHECKGLERROR
1831 qglDrawBuffer(r_shadow_drawbuffer);CHECKGLERROR
1832 qglReadBuffer(r_shadow_readbuffer);CHECKGLERROR
1834 R_SetViewport(&r_refdef.view.viewport);
1835 GL_Scissor(r_shadow_lightscissor[0], r_shadow_lightscissor[1], r_shadow_lightscissor[2], r_shadow_lightscissor[3]);
1836 R_Mesh_ColorPointer(NULL, 0, 0);
1837 R_Mesh_ResetTextureState();
1838 GL_DepthRange(0, 1);
1840 GL_DepthMask(false);
1841 qglDepthFunc(GL_LEQUAL);CHECKGLERROR
1842 GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);CHECKGLERROR
1843 qglDisable(GL_STENCIL_TEST);CHECKGLERROR
1844 qglStencilMask(~0);CHECKGLERROR
1845 qglStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);CHECKGLERROR
1846 qglStencilFunc(GL_ALWAYS, 128, ~0);CHECKGLERROR
1847 r_refdef.view.cullface_front = r_shadow_cullface_front;
1848 r_refdef.view.cullface_back = r_shadow_cullface_back;
1849 GL_CullFace(r_refdef.view.cullface_back);
1850 GL_Color(1, 1, 1, 1);
1851 GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
1852 GL_BlendFunc(GL_ONE, GL_ZERO);
1853 R_SetupGenericShader(false);
1854 r_shadow_usingshadowmaprect = false;
1855 r_shadow_usingshadowmapcube = false;
1856 r_shadow_usingshadowmap2d = false;
1860 void R_Shadow_ClearStencil(void)
1863 GL_Clear(GL_STENCIL_BUFFER_BIT);
1864 r_refdef.stats.lights_clears++;
1867 void R_Shadow_RenderMode_StencilShadowVolumes(qboolean zpass)
1869 r_shadow_rendermode_t mode = zpass ? r_shadow_shadowingrendermode_zpass : r_shadow_shadowingrendermode_zfail;
1870 if (r_shadow_rendermode == mode)
1873 R_Shadow_RenderMode_Reset();
1874 GL_ColorMask(0, 0, 0, 0);
1875 GL_PolygonOffset(r_refdef.shadowpolygonfactor, r_refdef.shadowpolygonoffset);CHECKGLERROR
1876 R_SetupDepthOrShadowShader();
1877 qglDepthFunc(GL_LESS);CHECKGLERROR
1878 qglEnable(GL_STENCIL_TEST);CHECKGLERROR
1879 r_shadow_rendermode = mode;
1884 case R_SHADOW_RENDERMODE_ZPASS_SEPARATESTENCIL:
1885 GL_CullFace(GL_NONE);
1886 qglStencilOpSeparate(r_refdef.view.cullface_front, GL_KEEP, GL_KEEP, GL_INCR);CHECKGLERROR
1887 qglStencilOpSeparate(r_refdef.view.cullface_back, GL_KEEP, GL_KEEP, GL_DECR);CHECKGLERROR
1889 case R_SHADOW_RENDERMODE_ZFAIL_SEPARATESTENCIL:
1890 GL_CullFace(GL_NONE);
1891 qglStencilOpSeparate(r_refdef.view.cullface_front, GL_KEEP, GL_INCR, GL_KEEP);CHECKGLERROR
1892 qglStencilOpSeparate(r_refdef.view.cullface_back, GL_KEEP, GL_DECR, GL_KEEP);CHECKGLERROR
1894 case R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE:
1895 GL_CullFace(GL_NONE);
1896 qglEnable(GL_STENCIL_TEST_TWO_SIDE_EXT);CHECKGLERROR
1897 qglActiveStencilFaceEXT(r_refdef.view.cullface_front);CHECKGLERROR
1898 qglStencilMask(~0);CHECKGLERROR
1899 qglStencilOp(GL_KEEP, GL_KEEP, GL_INCR);CHECKGLERROR
1900 qglActiveStencilFaceEXT(r_refdef.view.cullface_back);CHECKGLERROR
1901 qglStencilMask(~0);CHECKGLERROR
1902 qglStencilOp(GL_KEEP, GL_KEEP, GL_DECR);CHECKGLERROR
1904 case R_SHADOW_RENDERMODE_ZFAIL_STENCILTWOSIDE:
1905 GL_CullFace(GL_NONE);
1906 qglEnable(GL_STENCIL_TEST_TWO_SIDE_EXT);CHECKGLERROR
1907 qglActiveStencilFaceEXT(r_refdef.view.cullface_front);CHECKGLERROR
1908 qglStencilMask(~0);CHECKGLERROR
1909 qglStencilOp(GL_KEEP, GL_INCR, GL_KEEP);CHECKGLERROR
1910 qglActiveStencilFaceEXT(r_refdef.view.cullface_back);CHECKGLERROR
1911 qglStencilMask(~0);CHECKGLERROR
1912 qglStencilOp(GL_KEEP, GL_DECR, GL_KEEP);CHECKGLERROR
1917 static void R_Shadow_MakeVSDCT(void)
1919 // maps to a 2x3 texture rectangle with normalized coordinates
1924 // stores abs(dir.xy), offset.xy/2.5
1925 unsigned char data[4*6] =
1927 255, 0, 0x33, 0x33, // +X: <1, 0>, <0.5, 0.5>
1928 255, 0, 0x99, 0x33, // -X: <1, 0>, <1.5, 0.5>
1929 0, 255, 0x33, 0x99, // +Y: <0, 1>, <0.5, 1.5>
1930 0, 255, 0x99, 0x99, // -Y: <0, 1>, <1.5, 1.5>
1931 0, 0, 0x33, 0xFF, // +Z: <0, 0>, <0.5, 2.5>
1932 0, 0, 0x99, 0xFF, // -Z: <0, 0>, <1.5, 2.5>
1934 r_shadow_shadowmapvsdcttexture = R_LoadTextureCubeMap(r_shadow_texturepool, "shadowmapvsdct", 1, data, TEXTYPE_RGBA, TEXF_ALWAYSPRECACHE | TEXF_FORCENEAREST | TEXF_CLAMP | TEXF_ALPHA, NULL);
1937 void R_Shadow_RenderMode_ShadowMap(int side, qboolean clear, int size)
1941 float nearclip, farclip, bias;
1942 r_viewport_t viewport;
1945 maxsize = r_shadow_shadowmapmaxsize;
1946 nearclip = r_shadow_shadowmapping_nearclip.value / rsurface.rtlight->radius;
1948 bias = r_shadow_shadowmapping_bias.value * nearclip * (1024.0f / size);// * rsurface.rtlight->radius;
1949 r_shadow_shadowmap_parameters[2] = 0.5f + 0.5f * (farclip + nearclip) / (farclip - nearclip);
1950 r_shadow_shadowmap_parameters[3] = -nearclip * farclip / (farclip - nearclip) - 0.5f * bias;
1951 r_shadow_shadowmapside = side;
1952 r_shadow_shadowmapsize = size;
1953 if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAP2D)
1955 r_shadow_shadowmap_parameters[0] = 0.5f * (size - r_shadow_shadowmapborder);
1956 r_shadow_shadowmap_parameters[1] = r_shadow_shadowmapvsdct ? 2.5f*size : size;
1957 R_Viewport_InitRectSideView(&viewport, &rsurface.rtlight->matrix_lighttoworld, side, size, r_shadow_shadowmapborder, nearclip, farclip, NULL);
1958 if (r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAP2D) goto init_done;
1960 // complex unrolled cube approach (more flexible)
1961 if (r_shadow_shadowmapvsdct && !r_shadow_shadowmapvsdcttexture)
1962 R_Shadow_MakeVSDCT();
1963 if (!r_shadow_shadowmap2dtexture)
1966 int w = maxsize*2, h = gl_support_arb_texture_non_power_of_two ? maxsize*3 : maxsize*4;
1967 r_shadow_shadowmap2dtexture = R_LoadTextureShadowMap2D(r_shadow_texturepool, "shadowmap", w, h, r_shadow_shadowmapdepthbits, r_shadow_shadowmapsampler);
1968 qglGenFramebuffersEXT(1, &r_shadow_fbo2d);CHECKGLERROR
1969 qglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, r_shadow_fbo2d);CHECKGLERROR
1970 qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_2D, R_GetTexture(r_shadow_shadowmap2dtexture), 0);CHECKGLERROR
1971 // render depth into the fbo, do not render color at all
1972 qglDrawBuffer(GL_NONE);CHECKGLERROR
1973 qglReadBuffer(GL_NONE);CHECKGLERROR
1974 status = qglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);CHECKGLERROR
1975 if (status != GL_FRAMEBUFFER_COMPLETE_EXT && r_shadow_shadowmapping.integer)
1977 Con_Printf("R_Shadow_RenderMode_ShadowMap: glCheckFramebufferStatusEXT returned %i\n", status);
1978 Cvar_SetValueQuick(&r_shadow_shadowmapping, 0);
1983 if (r_shadow_shadowmap2dtexture) fbo = r_shadow_fbo2d;
1984 r_shadow_shadowmap_texturescale[0] = 1.0f / R_TextureWidth(r_shadow_shadowmap2dtexture);
1985 r_shadow_shadowmap_texturescale[1] = 1.0f / R_TextureHeight(r_shadow_shadowmap2dtexture);
1986 r_shadow_rendermode = R_SHADOW_RENDERMODE_SHADOWMAP2D;
1988 else if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE)
1990 r_shadow_shadowmap_parameters[0] = 0.5f * (size - r_shadow_shadowmapborder);
1991 r_shadow_shadowmap_parameters[1] = r_shadow_shadowmapvsdct ? 2.5f*size : size;
1992 R_Viewport_InitRectSideView(&viewport, &rsurface.rtlight->matrix_lighttoworld, side, size, r_shadow_shadowmapborder, nearclip, farclip, NULL);
1993 if (r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAPRECTANGLE) goto init_done;
1995 // complex unrolled cube approach (more flexible)
1996 if (r_shadow_shadowmapvsdct && !r_shadow_shadowmapvsdcttexture)
1997 R_Shadow_MakeVSDCT();
1998 if (!r_shadow_shadowmaprectangletexture)
2001 r_shadow_shadowmaprectangletexture = R_LoadTextureShadowMapRectangle(r_shadow_texturepool, "shadowmap", maxsize*2, maxsize*3, r_shadow_shadowmapdepthbits, r_shadow_shadowmapsampler);
2002 qglGenFramebuffersEXT(1, &r_shadow_fborectangle);CHECKGLERROR
2003 qglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, r_shadow_fborectangle);CHECKGLERROR
2004 qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_RECTANGLE_ARB, R_GetTexture(r_shadow_shadowmaprectangletexture), 0);CHECKGLERROR
2005 // render depth into the fbo, do not render color at all
2006 qglDrawBuffer(GL_NONE);CHECKGLERROR
2007 qglReadBuffer(GL_NONE);CHECKGLERROR
2008 status = qglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);CHECKGLERROR
2009 if (status != GL_FRAMEBUFFER_COMPLETE_EXT && r_shadow_shadowmapping.integer)
2011 Con_Printf("R_Shadow_RenderMode_ShadowMap: glCheckFramebufferStatusEXT returned %i\n", status);
2012 Cvar_SetValueQuick(&r_shadow_shadowmapping, 0);
2017 if(r_shadow_shadowmaprectangletexture) fbo = r_shadow_fborectangle;
2018 r_shadow_shadowmap_texturescale[0] = 1.0f;
2019 r_shadow_shadowmap_texturescale[1] = 1.0f;
2020 r_shadow_rendermode = R_SHADOW_RENDERMODE_SHADOWMAPRECTANGLE;
2022 else if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE)
2024 r_shadow_shadowmap_parameters[0] = 1.0f;
2025 r_shadow_shadowmap_parameters[1] = 1.0f;
2026 R_Viewport_InitCubeSideView(&viewport, &rsurface.rtlight->matrix_lighttoworld, side, size, nearclip, farclip, NULL);
2027 if (r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAPCUBESIDE) goto init_done;
2029 // simple cube approach
2030 if (!r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod])
2033 r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod] = R_LoadTextureShadowMapCube(r_shadow_texturepool, "shadowmapcube", size, r_shadow_shadowmapdepthbits, r_shadow_shadowmapsampler);
2034 qglGenFramebuffersEXT(1, &r_shadow_fbocubeside[r_shadow_shadowmaplod]);CHECKGLERROR
2035 qglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, r_shadow_fbocubeside[r_shadow_shadowmaplod]);CHECKGLERROR
2036 qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + side, R_GetTexture(r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod]), 0);CHECKGLERROR
2037 // render depth into the fbo, do not render color at all
2038 qglDrawBuffer(GL_NONE);CHECKGLERROR
2039 qglReadBuffer(GL_NONE);CHECKGLERROR
2040 status = qglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);CHECKGLERROR
2041 if (status != GL_FRAMEBUFFER_COMPLETE_EXT && r_shadow_shadowmapping.integer)
2043 Con_Printf("R_Shadow_RenderMode_ShadowMap: glCheckFramebufferStatusEXT returned %i\n", status);
2044 Cvar_SetValueQuick(&r_shadow_shadowmapping, 0);
2049 if (r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod]) fbo = r_shadow_fbocubeside[r_shadow_shadowmaplod];
2050 r_shadow_shadowmap_texturescale[0] = 0.0f;
2051 r_shadow_shadowmap_texturescale[1] = 0.0f;
2052 r_shadow_rendermode = R_SHADOW_RENDERMODE_SHADOWMAPCUBESIDE;
2055 R_Shadow_RenderMode_Reset();
2058 qglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);CHECKGLERROR
2059 R_SetupDepthOrShadowShader();
2063 R_SetupShowDepthShader();
2064 qglClearColor(1,1,1,1);CHECKGLERROR
2067 GL_PolygonOffset(r_shadow_shadowmapping_polygonfactor.value, r_shadow_shadowmapping_polygonoffset.value);
2074 R_SetViewport(&viewport);
2075 GL_Scissor(viewport.x, viewport.y, viewport.width, viewport.height);
2076 if(r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAP2D || r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAPRECTANGLE)
2078 int flipped = (side&1)^(side>>2);
2079 r_refdef.view.cullface_front = flipped ? r_shadow_cullface_back : r_shadow_cullface_front;
2080 r_refdef.view.cullface_back = flipped ? r_shadow_cullface_front : r_shadow_cullface_back;
2081 GL_CullFace(r_refdef.view.cullface_back);
2083 else if(r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAPCUBESIDE)
2085 qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + side, R_GetTexture(r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod]), 0);CHECKGLERROR
2088 qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
2092 void R_Shadow_RenderMode_Lighting(qboolean stenciltest, qboolean transparent, qboolean shadowmapping)
2096 r_shadow_lightscissor[0] = r_refdef.view.viewport.x;
2097 r_shadow_lightscissor[1] = r_refdef.view.viewport.y;
2098 r_shadow_lightscissor[2] = r_refdef.view.viewport.width;
2099 r_shadow_lightscissor[3] = r_refdef.view.viewport.height;
2102 R_Shadow_RenderMode_Reset();
2103 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
2106 qglDepthFunc(GL_EQUAL);CHECKGLERROR
2110 qglEnable(GL_STENCIL_TEST);CHECKGLERROR
2111 // only draw light where this geometry was already rendered AND the
2112 // stencil is 128 (values other than this mean shadow)
2113 qglStencilFunc(GL_EQUAL, 128, ~0);CHECKGLERROR
2115 r_shadow_rendermode = r_shadow_lightingrendermode;
2116 // do global setup needed for the chosen lighting mode
2117 if (r_shadow_rendermode == R_SHADOW_RENDERMODE_LIGHT_GLSL)
2119 R_Mesh_TexBindCubeMap(GL20TU_CUBE, R_GetTexture(rsurface.rtlight->currentcubemap)); // light filter
2120 GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 0);
2124 if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAP2D)
2126 r_shadow_usingshadowmap2d = true;
2127 R_Mesh_TexBind(GL20TU_SHADOWMAP2D, R_GetTexture(r_shadow_shadowmap2dtexture));
2130 else if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE)
2132 r_shadow_usingshadowmaprect = true;
2133 R_Mesh_TexBindRectangle(GL20TU_SHADOWMAPRECT, R_GetTexture(r_shadow_shadowmaprectangletexture));
2136 else if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE)
2138 r_shadow_usingshadowmapcube = true;
2139 R_Mesh_TexBindCubeMap(GL20TU_SHADOWMAPCUBE, R_GetTexture(r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod]));
2143 if (r_shadow_shadowmapvsdct && (r_shadow_usingshadowmap2d || r_shadow_usingshadowmaprect))
2145 R_Mesh_TexBindCubeMap(GL20TU_CUBEPROJECTION, R_GetTexture(r_shadow_shadowmapvsdcttexture));
2150 else if (r_shadow_rendermode == R_SHADOW_RENDERMODE_LIGHT_VERTEX)
2151 R_Mesh_ColorPointer(rsurface.array_color4f, 0, 0);
2152 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
2156 void R_Shadow_RenderMode_VisibleShadowVolumes(void)
2159 R_Shadow_RenderMode_Reset();
2160 GL_BlendFunc(GL_ONE, GL_ONE);
2161 GL_DepthRange(0, 1);
2162 GL_DepthTest(r_showshadowvolumes.integer < 2);
2163 GL_Color(0.0, 0.0125 * r_refdef.view.colorscale, 0.1 * r_refdef.view.colorscale, 1);
2164 GL_PolygonOffset(r_refdef.shadowpolygonfactor, r_refdef.shadowpolygonoffset);CHECKGLERROR
2165 GL_CullFace(GL_NONE);
2166 r_shadow_rendermode = R_SHADOW_RENDERMODE_VISIBLEVOLUMES;
2169 void R_Shadow_RenderMode_VisibleLighting(qboolean stenciltest, qboolean transparent)
2172 R_Shadow_RenderMode_Reset();
2173 GL_BlendFunc(GL_ONE, GL_ONE);
2174 GL_DepthRange(0, 1);
2175 GL_DepthTest(r_showlighting.integer < 2);
2176 GL_Color(0.1 * r_refdef.view.colorscale, 0.0125 * r_refdef.view.colorscale, 0, 1);
2179 qglDepthFunc(GL_EQUAL);CHECKGLERROR
2183 qglEnable(GL_STENCIL_TEST);CHECKGLERROR
2184 qglStencilFunc(GL_EQUAL, 128, ~0);CHECKGLERROR
2186 r_shadow_rendermode = R_SHADOW_RENDERMODE_VISIBLELIGHTING;
2189 void R_Shadow_RenderMode_End(void)
2192 R_Shadow_RenderMode_Reset();
2193 R_Shadow_RenderMode_ActiveLight(NULL);
2195 GL_Scissor(r_refdef.view.viewport.x, r_refdef.view.viewport.y, r_refdef.view.viewport.width, r_refdef.view.viewport.height);
2196 r_shadow_rendermode = R_SHADOW_RENDERMODE_NONE;
2199 int bboxedges[12][2] =
2218 qboolean R_Shadow_ScissorForBBox(const float *mins, const float *maxs)
2220 int i, ix1, iy1, ix2, iy2;
2221 float x1, y1, x2, y2;
2223 float vertex[20][3];
2232 r_shadow_lightscissor[0] = r_refdef.view.viewport.x;
2233 r_shadow_lightscissor[1] = r_refdef.view.viewport.y;
2234 r_shadow_lightscissor[2] = r_refdef.view.viewport.width;
2235 r_shadow_lightscissor[3] = r_refdef.view.viewport.height;
2237 if (!r_shadow_scissor.integer)
2240 // if view is inside the light box, just say yes it's visible
2241 if (BoxesOverlap(r_refdef.view.origin, r_refdef.view.origin, mins, maxs))
2244 x1 = y1 = x2 = y2 = 0;
2246 // transform all corners that are infront of the nearclip plane
2247 VectorNegate(r_refdef.view.frustum[4].normal, plane4f);
2248 plane4f[3] = r_refdef.view.frustum[4].dist;
2250 for (i = 0;i < 8;i++)
2252 Vector4Set(corner[i], (i & 1) ? maxs[0] : mins[0], (i & 2) ? maxs[1] : mins[1], (i & 4) ? maxs[2] : mins[2], 1);
2253 dist[i] = DotProduct4(corner[i], plane4f);
2254 sign[i] = dist[i] > 0;
2257 VectorCopy(corner[i], vertex[numvertices]);
2261 // if some points are behind the nearclip, add clipped edge points to make
2262 // sure that the scissor boundary is complete
2263 if (numvertices > 0 && numvertices < 8)
2265 // add clipped edge points
2266 for (i = 0;i < 12;i++)
2268 j = bboxedges[i][0];
2269 k = bboxedges[i][1];
2270 if (sign[j] != sign[k])
2272 f = dist[j] / (dist[j] - dist[k]);
2273 VectorLerp(corner[j], f, corner[k], vertex[numvertices]);
2279 // if we have no points to check, the light is behind the view plane
2283 // if we have some points to transform, check what screen area is covered
2284 x1 = y1 = x2 = y2 = 0;
2286 //Con_Printf("%i vertices to transform...\n", numvertices);
2287 for (i = 0;i < numvertices;i++)
2289 VectorCopy(vertex[i], v);
2290 R_Viewport_TransformToScreen(&r_refdef.view.viewport, v, v2);
2291 //Con_Printf("%.3f %.3f %.3f %.3f transformed to %.3f %.3f %.3f %.3f\n", v[0], v[1], v[2], v[3], v2[0], v2[1], v2[2], v2[3]);
2294 if (x1 > v2[0]) x1 = v2[0];
2295 if (x2 < v2[0]) x2 = v2[0];
2296 if (y1 > v2[1]) y1 = v2[1];
2297 if (y2 < v2[1]) y2 = v2[1];
2306 // now convert the scissor rectangle to integer screen coordinates
2307 ix1 = (int)(x1 - 1.0f);
2308 iy1 = vid.height - (int)(y2 - 1.0f);
2309 ix2 = (int)(x2 + 1.0f);
2310 iy2 = vid.height - (int)(y1 + 1.0f);
2311 //Con_Printf("%f %f %f %f\n", x1, y1, x2, y2);
2313 // clamp it to the screen
2314 if (ix1 < r_refdef.view.viewport.x) ix1 = r_refdef.view.viewport.x;
2315 if (iy1 < r_refdef.view.viewport.y) iy1 = r_refdef.view.viewport.y;
2316 if (ix2 > r_refdef.view.viewport.x + r_refdef.view.viewport.width) ix2 = r_refdef.view.viewport.x + r_refdef.view.viewport.width;
2317 if (iy2 > r_refdef.view.viewport.y + r_refdef.view.viewport.height) iy2 = r_refdef.view.viewport.y + r_refdef.view.viewport.height;
2319 // if it is inside out, it's not visible
2320 if (ix2 <= ix1 || iy2 <= iy1)
2323 // the light area is visible, set up the scissor rectangle
2324 r_shadow_lightscissor[0] = ix1;
2325 r_shadow_lightscissor[1] = iy1;
2326 r_shadow_lightscissor[2] = ix2 - ix1;
2327 r_shadow_lightscissor[3] = iy2 - iy1;
2329 r_refdef.stats.lights_scissored++;
2333 static void R_Shadow_RenderLighting_Light_Vertex_Shading(int firstvertex, int numverts, int numtriangles, const int *element3i, const float *diffusecolor, const float *ambientcolor)
2335 float *vertex3f = rsurface.vertex3f + 3 * firstvertex;
2336 float *normal3f = rsurface.normal3f + 3 * firstvertex;
2337 float *color4f = rsurface.array_color4f + 4 * firstvertex;
2338 float dist, dot, distintensity, shadeintensity, v[3], n[3];
2339 if (r_textureunits.integer >= 3)
2341 if (VectorLength2(diffusecolor) > 0)
2343 for (;numverts > 0;numverts--, vertex3f += 3, normal3f += 3, color4f += 4)
2345 Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v);
2346 Matrix4x4_Transform3x3(&rsurface.entitytolight, normal3f, n);
2347 if ((dot = DotProduct(n, v)) < 0)
2349 shadeintensity = -dot / sqrt(VectorLength2(v) * VectorLength2(n));
2350 VectorMA(ambientcolor, shadeintensity, diffusecolor, color4f);
2353 VectorCopy(ambientcolor, color4f);
2354 if (r_refdef.fogenabled)
2357 f = FogPoint_Model(vertex3f);
2358 VectorScale(color4f, f, color4f);
2365 for (;numverts > 0;numverts--, vertex3f += 3, color4f += 4)
2367 VectorCopy(ambientcolor, color4f);
2368 if (r_refdef.fogenabled)
2371 Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v);
2372 f = FogPoint_Model(vertex3f);
2373 VectorScale(color4f, f, color4f);
2379 else if (r_textureunits.integer >= 2)
2381 if (VectorLength2(diffusecolor) > 0)
2383 for (;numverts > 0;numverts--, vertex3f += 3, normal3f += 3, color4f += 4)
2385 Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v);
2386 if ((dist = fabs(v[2])) < 1 && (distintensity = r_shadow_attentable[(int)(dist * ATTENTABLESIZE)]))
2388 Matrix4x4_Transform3x3(&rsurface.entitytolight, normal3f, n);
2389 if ((dot = DotProduct(n, v)) < 0)
2391 shadeintensity = -dot / sqrt(VectorLength2(v) * VectorLength2(n));
2392 color4f[0] = (ambientcolor[0] + shadeintensity * diffusecolor[0]) * distintensity;
2393 color4f[1] = (ambientcolor[1] + shadeintensity * diffusecolor[1]) * distintensity;
2394 color4f[2] = (ambientcolor[2] + shadeintensity * diffusecolor[2]) * distintensity;
2398 color4f[0] = ambientcolor[0] * distintensity;
2399 color4f[1] = ambientcolor[1] * distintensity;
2400 color4f[2] = ambientcolor[2] * distintensity;
2402 if (r_refdef.fogenabled)
2405 f = FogPoint_Model(vertex3f);
2406 VectorScale(color4f, f, color4f);
2410 VectorClear(color4f);
2416 for (;numverts > 0;numverts--, vertex3f += 3, color4f += 4)
2418 Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v);
2419 if ((dist = fabs(v[2])) < 1 && (distintensity = r_shadow_attentable[(int)(dist * ATTENTABLESIZE)]))
2421 color4f[0] = ambientcolor[0] * distintensity;
2422 color4f[1] = ambientcolor[1] * distintensity;
2423 color4f[2] = ambientcolor[2] * distintensity;
2424 if (r_refdef.fogenabled)
2427 f = FogPoint_Model(vertex3f);
2428 VectorScale(color4f, f, color4f);
2432 VectorClear(color4f);
2439 if (VectorLength2(diffusecolor) > 0)
2441 for (;numverts > 0;numverts--, vertex3f += 3, normal3f += 3, color4f += 4)
2443 Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v);
2444 if ((dist = VectorLength(v)) < 1 && (distintensity = r_shadow_attentable[(int)(dist * ATTENTABLESIZE)]))
2446 distintensity = (1 - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
2447 Matrix4x4_Transform3x3(&rsurface.entitytolight, normal3f, n);
2448 if ((dot = DotProduct(n, v)) < 0)
2450 shadeintensity = -dot / sqrt(VectorLength2(v) * VectorLength2(n));
2451 color4f[0] = (ambientcolor[0] + shadeintensity * diffusecolor[0]) * distintensity;
2452 color4f[1] = (ambientcolor[1] + shadeintensity * diffusecolor[1]) * distintensity;
2453 color4f[2] = (ambientcolor[2] + shadeintensity * diffusecolor[2]) * distintensity;
2457 color4f[0] = ambientcolor[0] * distintensity;
2458 color4f[1] = ambientcolor[1] * distintensity;
2459 color4f[2] = ambientcolor[2] * distintensity;
2461 if (r_refdef.fogenabled)
2464 f = FogPoint_Model(vertex3f);
2465 VectorScale(color4f, f, color4f);
2469 VectorClear(color4f);
2475 for (;numverts > 0;numverts--, vertex3f += 3, color4f += 4)
2477 Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v);
2478 if ((dist = VectorLength(v)) < 1 && (distintensity = r_shadow_attentable[(int)(dist * ATTENTABLESIZE)]))
2480 distintensity = (1 - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
2481 color4f[0] = ambientcolor[0] * distintensity;
2482 color4f[1] = ambientcolor[1] * distintensity;
2483 color4f[2] = ambientcolor[2] * distintensity;
2484 if (r_refdef.fogenabled)
2487 f = FogPoint_Model(vertex3f);
2488 VectorScale(color4f, f, color4f);
2492 VectorClear(color4f);
2499 // TODO: use glTexGen instead of feeding vertices to texcoordpointer?
2501 static void R_Shadow_GenTexCoords_Diffuse_NormalCubeMap(int firstvertex, int numvertices, int numtriangles, const int *element3i)
2504 float *out3f = rsurface.array_texcoord3f + 3 * firstvertex;
2505 const float *vertex3f = rsurface.vertex3f + 3 * firstvertex;
2506 const float *svector3f = rsurface.svector3f + 3 * firstvertex;
2507 const float *tvector3f = rsurface.tvector3f + 3 * firstvertex;
2508 const float *normal3f = rsurface.normal3f + 3 * firstvertex;
2510 for (i = 0;i < numvertices;i++, vertex3f += 3, svector3f += 3, tvector3f += 3, normal3f += 3, out3f += 3)
2512 VectorSubtract(rsurface.entitylightorigin, vertex3f, lightdir);
2513 // the cubemap normalizes this for us
2514 out3f[0] = DotProduct(svector3f, lightdir);
2515 out3f[1] = DotProduct(tvector3f, lightdir);
2516 out3f[2] = DotProduct(normal3f, lightdir);
2520 static void R_Shadow_GenTexCoords_Specular_NormalCubeMap(int firstvertex, int numvertices, int numtriangles, const int *element3i)
2523 float *out3f = rsurface.array_texcoord3f + 3 * firstvertex;
2524 const float *vertex3f = rsurface.vertex3f + 3 * firstvertex;
2525 const float *svector3f = rsurface.svector3f + 3 * firstvertex;
2526 const float *tvector3f = rsurface.tvector3f + 3 * firstvertex;
2527 const float *normal3f = rsurface.normal3f + 3 * firstvertex;
2528 float lightdir[3], eyedir[3], halfdir[3];
2529 for (i = 0;i < numvertices;i++, vertex3f += 3, svector3f += 3, tvector3f += 3, normal3f += 3, out3f += 3)
2531 VectorSubtract(rsurface.entitylightorigin, vertex3f, lightdir);
2532 VectorNormalize(lightdir);
2533 VectorSubtract(rsurface.modelorg, vertex3f, eyedir);
2534 VectorNormalize(eyedir);
2535 VectorAdd(lightdir, eyedir, halfdir);
2536 // the cubemap normalizes this for us
2537 out3f[0] = DotProduct(svector3f, halfdir);
2538 out3f[1] = DotProduct(tvector3f, halfdir);
2539 out3f[2] = DotProduct(normal3f, halfdir);
2543 static void R_Shadow_RenderLighting_VisibleLighting(int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const unsigned short *element3s, int element3i_bufferobject, int element3s_bufferobject, const vec3_t lightcolorbase, const vec3_t lightcolorpants, const vec3_t lightcolorshirt, rtexture_t *basetexture, rtexture_t *pantstexture, rtexture_t *shirttexture, rtexture_t *normalmaptexture, rtexture_t *glosstexture, float ambientscale, float diffusescale, float specularscale, qboolean dopants, qboolean doshirt)
2545 // used to display how many times a surface is lit for level design purposes
2546 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2549 static void R_Shadow_RenderLighting_Light_GLSL(int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const unsigned short *element3s, int element3i_bufferobject, int element3s_bufferobject, const vec3_t lightcolorbase, const vec3_t lightcolorpants, const vec3_t lightcolorshirt, rtexture_t *basetexture, rtexture_t *pantstexture, rtexture_t *shirttexture, rtexture_t *normalmaptexture, rtexture_t *glosstexture, float ambientscale, float diffusescale, float specularscale, qboolean dopants, qboolean doshirt)
2551 // ARB2 GLSL shader path (GFFX5200, Radeon 9500)
2552 R_SetupSurfaceShader(lightcolorbase, false, ambientscale, diffusescale, specularscale, RSURFPASS_RTLIGHT);
2553 if ((rsurface.texture->currentmaterialflags & MATERIALFLAG_VERTEXTEXTUREBLEND))
2554 R_Mesh_ColorPointer(rsurface.modellightmapcolor4f, rsurface.modellightmapcolor4f_bufferobject, rsurface.modellightmapcolor4f_bufferoffset);
2556 R_Mesh_ColorPointer(NULL, 0, 0);
2557 R_Mesh_TexMatrix(0, &rsurface.texture->currenttexmatrix);
2558 R_Mesh_TexMatrix(1, &rsurface.texture->currentbackgroundtexmatrix);
2559 R_Mesh_TexBind(GL20TU_NORMAL, R_GetTexture(rsurface.texture->currentskinframe->nmap));
2560 R_Mesh_TexBind(GL20TU_COLOR, R_GetTexture(rsurface.texture->basetexture));
2561 R_Mesh_TexBind(GL20TU_GLOSS, R_GetTexture(rsurface.texture->glosstexture));
2562 if (rsurface.texture->backgroundcurrentskinframe)
2564 R_Mesh_TexBind(GL20TU_SECONDARY_NORMAL, R_GetTexture(rsurface.texture->backgroundcurrentskinframe->nmap));
2565 R_Mesh_TexBind(GL20TU_SECONDARY_COLOR, R_GetTexture(rsurface.texture->backgroundbasetexture));
2566 R_Mesh_TexBind(GL20TU_SECONDARY_GLOSS, R_GetTexture(rsurface.texture->backgroundglosstexture));
2567 R_Mesh_TexBind(GL20TU_SECONDARY_GLOW, R_GetTexture(rsurface.texture->backgroundcurrentskinframe->glow));
2569 //R_Mesh_TexBindCubeMap(GL20TU_CUBE, R_GetTexture(rsurface.rtlight->currentcubemap));
2570 R_Mesh_TexBind(GL20TU_FOGMASK, R_GetTexture(r_texture_fogattenuation));
2571 if(rsurface.texture->colormapping)
2573 R_Mesh_TexBind(GL20TU_PANTS, R_GetTexture(rsurface.texture->currentskinframe->pants));
2574 R_Mesh_TexBind(GL20TU_SHIRT, R_GetTexture(rsurface.texture->currentskinframe->shirt));
2576 R_Mesh_TexBind(GL20TU_ATTENUATION, R_GetTexture(r_shadow_attenuationgradienttexture));
2577 R_Mesh_TexCoordPointer(0, 2, rsurface.texcoordtexture2f, rsurface.texcoordtexture2f_bufferobject, rsurface.texcoordtexture2f_bufferoffset);
2578 R_Mesh_TexCoordPointer(1, 3, rsurface.svector3f, rsurface.svector3f_bufferobject, rsurface.svector3f_bufferoffset);
2579 R_Mesh_TexCoordPointer(2, 3, rsurface.tvector3f, rsurface.tvector3f_bufferobject, rsurface.tvector3f_bufferoffset);
2580 R_Mesh_TexCoordPointer(3, 3, rsurface.normal3f, rsurface.normal3f_bufferobject, rsurface.normal3f_bufferoffset);
2581 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
2583 qglDepthFunc(GL_EQUAL);CHECKGLERROR
2585 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2586 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
2588 qglDepthFunc(GL_LEQUAL);CHECKGLERROR
2592 static void R_Shadow_RenderLighting_Light_Dot3_Finalize(int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const unsigned short *element3s, int element3i_bufferobject, int element3s_bufferobject, float r, float g, float b)
2594 // shared final code for all the dot3 layers
2596 GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 0);
2597 for (renders = 0;renders < 64 && (r > 0 || g > 0 || b > 0);renders++, r--, g--, b--)
2599 GL_Color(bound(0, r, 1), bound(0, g, 1), bound(0, b, 1), 1);
2600 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2604 static void R_Shadow_RenderLighting_Light_Dot3_AmbientPass(int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const unsigned short *element3s, int element3i_bufferobject, int element3s_bufferobject, const vec3_t lightcolorbase, rtexture_t *basetexture, float colorscale)
2607 // colorscale accounts for how much we multiply the brightness
2610 // mult is how many times the final pass of the lighting will be
2611 // performed to get more brightness than otherwise possible.
2613 // Limit mult to 64 for sanity sake.
2615 if (r_shadow_texture3d.integer && rsurface.rtlight->currentcubemap != r_texture_whitecube && r_textureunits.integer >= 4)
2617 // 3 3D combine path (Geforce3, Radeon 8500)
2618 memset(&m, 0, sizeof(m));
2619 m.tex3d[0] = R_GetTexture(r_shadow_attenuation3dtexture);
2620 m.pointer_texcoord3f[0] = rsurface.vertex3f;
2621 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
2622 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
2623 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
2624 m.tex[1] = R_GetTexture(basetexture);
2625 m.pointer_texcoord[1] = rsurface.texcoordtexture2f;
2626 m.pointer_texcoord_bufferobject[1] = rsurface.texcoordtexture2f_bufferobject;
2627 m.pointer_texcoord_bufferoffset[1] = rsurface.texcoordtexture2f_bufferoffset;
2628 m.texmatrix[1] = rsurface.texture->currenttexmatrix;
2629 m.texcubemap[2] = R_GetTexture(rsurface.rtlight->currentcubemap);
2630 m.pointer_texcoord3f[2] = rsurface.vertex3f;
2631 m.pointer_texcoord_bufferobject[2] = rsurface.vertex3f_bufferobject;
2632 m.pointer_texcoord_bufferoffset[2] = rsurface.vertex3f_bufferoffset;
2633 m.texmatrix[2] = rsurface.entitytolight;
2634 GL_BlendFunc(GL_ONE, GL_ONE);
2636 else if (r_shadow_texture3d.integer && rsurface.rtlight->currentcubemap == r_texture_whitecube && r_textureunits.integer >= 2)
2638 // 2 3D combine path (Geforce3, original Radeon)
2639 memset(&m, 0, sizeof(m));
2640 m.tex3d[0] = R_GetTexture(r_shadow_attenuation3dtexture);
2641 m.pointer_texcoord3f[0] = rsurface.vertex3f;
2642 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
2643 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
2644 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
2645 m.tex[1] = R_GetTexture(basetexture);
2646 m.pointer_texcoord[1] = rsurface.texcoordtexture2f;
2647 m.pointer_texcoord_bufferobject[1] = rsurface.texcoordtexture2f_bufferobject;
2648 m.pointer_texcoord_bufferoffset[1] = rsurface.texcoordtexture2f_bufferoffset;
2649 m.texmatrix[1] = rsurface.texture->currenttexmatrix;
2650 GL_BlendFunc(GL_ONE, GL_ONE);
2652 else if (r_textureunits.integer >= 4 && rsurface.rtlight->currentcubemap != r_texture_whitecube)
2654 // 4 2D combine path (Geforce3, Radeon 8500)
2655 memset(&m, 0, sizeof(m));
2656 m.tex[0] = R_GetTexture(r_shadow_attenuation2dtexture);
2657 m.pointer_texcoord3f[0] = rsurface.vertex3f;
2658 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
2659 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
2660 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
2661 m.tex[1] = R_GetTexture(r_shadow_attenuation2dtexture);
2662 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2663 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2664 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2665 m.texmatrix[1] = rsurface.entitytoattenuationz;
2666 m.tex[2] = R_GetTexture(basetexture);
2667 m.pointer_texcoord[2] = rsurface.texcoordtexture2f;
2668 m.pointer_texcoord_bufferobject[2] = rsurface.texcoordtexture2f_bufferobject;
2669 m.pointer_texcoord_bufferoffset[2] = rsurface.texcoordtexture2f_bufferoffset;
2670 m.texmatrix[2] = rsurface.texture->currenttexmatrix;
2671 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
2673 m.texcubemap[3] = R_GetTexture(rsurface.rtlight->currentcubemap);
2674 m.pointer_texcoord3f[3] = rsurface.vertex3f;
2675 m.pointer_texcoord_bufferobject[3] = rsurface.vertex3f_bufferobject;
2676 m.pointer_texcoord_bufferoffset[3] = rsurface.vertex3f_bufferoffset;
2677 m.texmatrix[3] = rsurface.entitytolight;
2679 GL_BlendFunc(GL_ONE, GL_ONE);
2681 else if (r_textureunits.integer >= 3 && rsurface.rtlight->currentcubemap == r_texture_whitecube)
2683 // 3 2D combine path (Geforce3, original Radeon)
2684 memset(&m, 0, sizeof(m));
2685 m.tex[0] = R_GetTexture(r_shadow_attenuation2dtexture);
2686 m.pointer_texcoord3f[0] = rsurface.vertex3f;
2687 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
2688 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
2689 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
2690 m.tex[1] = R_GetTexture(r_shadow_attenuation2dtexture);
2691 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2692 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2693 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2694 m.texmatrix[1] = rsurface.entitytoattenuationz;
2695 m.tex[2] = R_GetTexture(basetexture);
2696 m.pointer_texcoord[2] = rsurface.texcoordtexture2f;
2697 m.pointer_texcoord_bufferobject[2] = rsurface.texcoordtexture2f_bufferobject;
2698 m.pointer_texcoord_bufferoffset[2] = rsurface.texcoordtexture2f_bufferoffset;
2699 m.texmatrix[2] = rsurface.texture->currenttexmatrix;
2700 GL_BlendFunc(GL_ONE, GL_ONE);
2704 // 2/2/2 2D combine path (any dot3 card)
2705 memset(&m, 0, sizeof(m));
2706 m.tex[0] = R_GetTexture(r_shadow_attenuation2dtexture);
2707 m.pointer_texcoord3f[0] = rsurface.vertex3f;
2708 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
2709 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
2710 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
2711 m.tex[1] = R_GetTexture(r_shadow_attenuation2dtexture);
2712 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2713 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2714 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2715 m.texmatrix[1] = rsurface.entitytoattenuationz;
2716 R_Mesh_TextureState(&m);
2717 GL_ColorMask(0,0,0,1);
2718 GL_BlendFunc(GL_ONE, GL_ZERO);
2719 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2722 memset(&m, 0, sizeof(m));
2723 m.tex[0] = R_GetTexture(basetexture);
2724 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2725 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2726 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2727 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2728 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
2730 m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
2731 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2732 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2733 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2734 m.texmatrix[1] = rsurface.entitytolight;
2736 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
2738 // this final code is shared
2739 R_Mesh_TextureState(&m);
2740 R_Shadow_RenderLighting_Light_Dot3_Finalize(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase[0] * colorscale, lightcolorbase[1] * colorscale, lightcolorbase[2] * colorscale);
2743 static void R_Shadow_RenderLighting_Light_Dot3_DiffusePass(int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const unsigned short *element3s, int element3i_bufferobject, int element3s_bufferobject, const vec3_t lightcolorbase, rtexture_t *basetexture, rtexture_t *normalmaptexture, float colorscale)
2746 // colorscale accounts for how much we multiply the brightness
2749 // mult is how many times the final pass of the lighting will be
2750 // performed to get more brightness than otherwise possible.
2752 // Limit mult to 64 for sanity sake.
2754 // generate normalization cubemap texcoords
2755 R_Shadow_GenTexCoords_Diffuse_NormalCubeMap(firstvertex, numvertices, numtriangles, element3i);
2756 if (r_shadow_texture3d.integer && r_textureunits.integer >= 4)
2758 // 3/2 3D combine path (Geforce3, Radeon 8500)
2759 memset(&m, 0, sizeof(m));
2760 m.tex[0] = R_GetTexture(normalmaptexture);
2761 m.texcombinergb[0] = GL_REPLACE;
2762 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2763 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2764 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2765 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2766 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
2767 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
2768 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
2769 m.pointer_texcoord_bufferobject[1] = 0;
2770 m.pointer_texcoord_bufferoffset[1] = 0;
2771 m.tex3d[2] = R_GetTexture(r_shadow_attenuation3dtexture);
2772 m.pointer_texcoord3f[2] = rsurface.vertex3f;
2773 m.pointer_texcoord_bufferobject[2] = rsurface.vertex3f_bufferobject;
2774 m.pointer_texcoord_bufferoffset[2] = rsurface.vertex3f_bufferoffset;
2775 m.texmatrix[2] = rsurface.entitytoattenuationxyz;
2776 R_Mesh_TextureState(&m);
2777 GL_ColorMask(0,0,0,1);
2778 GL_BlendFunc(GL_ONE, GL_ZERO);
2779 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2782 memset(&m, 0, sizeof(m));
2783 m.tex[0] = R_GetTexture(basetexture);
2784 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2785 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2786 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2787 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2788 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
2790 m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
2791 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2792 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2793 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2794 m.texmatrix[1] = rsurface.entitytolight;
2796 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
2798 else if (r_shadow_texture3d.integer && r_textureunits.integer >= 2 && rsurface.rtlight->currentcubemap != r_texture_whitecube)
2800 // 1/2/2 3D combine path (original Radeon)
2801 memset(&m, 0, sizeof(m));
2802 m.tex3d[0] = R_GetTexture(r_shadow_attenuation3dtexture);
2803 m.pointer_texcoord3f[0] = rsurface.vertex3f;
2804 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
2805 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
2806 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
2807 R_Mesh_TextureState(&m);
2808 GL_ColorMask(0,0,0,1);
2809 GL_BlendFunc(GL_ONE, GL_ZERO);
2810 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2813 memset(&m, 0, sizeof(m));
2814 m.tex[0] = R_GetTexture(normalmaptexture);
2815 m.texcombinergb[0] = GL_REPLACE;
2816 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2817 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2818 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2819 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2820 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
2821 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
2822 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
2823 m.pointer_texcoord_bufferobject[1] = 0;
2824 m.pointer_texcoord_bufferoffset[1] = 0;
2825 R_Mesh_TextureState(&m);
2826 GL_BlendFunc(GL_DST_ALPHA, GL_ZERO);
2827 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2830 memset(&m, 0, sizeof(m));
2831 m.tex[0] = R_GetTexture(basetexture);
2832 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2833 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2834 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2835 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2836 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
2838 m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
2839 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2840 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2841 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2842 m.texmatrix[1] = rsurface.entitytolight;
2844 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
2846 else if (r_shadow_texture3d.integer && r_textureunits.integer >= 2 && rsurface.rtlight->currentcubemap == r_texture_whitecube)
2848 // 2/2 3D combine path (original Radeon)
2849 memset(&m, 0, sizeof(m));
2850 m.tex[0] = R_GetTexture(normalmaptexture);
2851 m.texcombinergb[0] = GL_REPLACE;
2852 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2853 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2854 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2855 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2856 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
2857 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
2858 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
2859 m.pointer_texcoord_bufferobject[1] = 0;
2860 m.pointer_texcoord_bufferoffset[1] = 0;
2861 R_Mesh_TextureState(&m);
2862 GL_ColorMask(0,0,0,1);
2863 GL_BlendFunc(GL_ONE, GL_ZERO);
2864 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2867 memset(&m, 0, sizeof(m));
2868 m.tex[0] = R_GetTexture(basetexture);
2869 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2870 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2871 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2872 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2873 m.tex3d[1] = R_GetTexture(r_shadow_attenuation3dtexture);
2874 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2875 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2876 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2877 m.texmatrix[1] = rsurface.entitytoattenuationxyz;
2878 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
2880 else if (r_textureunits.integer >= 4)
2882 // 4/2 2D combine path (Geforce3, Radeon 8500)
2883 memset(&m, 0, sizeof(m));
2884 m.tex[0] = R_GetTexture(normalmaptexture);
2885 m.texcombinergb[0] = GL_REPLACE;
2886 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2887 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2888 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2889 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2890 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
2891 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
2892 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
2893 m.pointer_texcoord_bufferobject[1] = 0;
2894 m.pointer_texcoord_bufferoffset[1] = 0;
2895 m.tex[2] = R_GetTexture(r_shadow_attenuation2dtexture);
2896 m.pointer_texcoord3f[2] = rsurface.vertex3f;
2897 m.pointer_texcoord_bufferobject[2] = rsurface.vertex3f_bufferobject;
2898 m.pointer_texcoord_bufferoffset[2] = rsurface.vertex3f_bufferoffset;
2899 m.texmatrix[2] = rsurface.entitytoattenuationxyz;
2900 m.tex[3] = R_GetTexture(r_shadow_attenuation2dtexture);
2901 m.pointer_texcoord3f[3] = rsurface.vertex3f;
2902 m.pointer_texcoord_bufferobject[3] = rsurface.vertex3f_bufferobject;
2903 m.pointer_texcoord_bufferoffset[3] = rsurface.vertex3f_bufferoffset;
2904 m.texmatrix[3] = rsurface.entitytoattenuationz;
2905 R_Mesh_TextureState(&m);
2906 GL_ColorMask(0,0,0,1);
2907 GL_BlendFunc(GL_ONE, GL_ZERO);
2908 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2911 memset(&m, 0, sizeof(m));
2912 m.tex[0] = R_GetTexture(basetexture);
2913 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2914 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2915 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2916 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2917 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
2919 m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
2920 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2921 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2922 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2923 m.texmatrix[1] = rsurface.entitytolight;
2925 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
2929 // 2/2/2 2D combine path (any dot3 card)
2930 memset(&m, 0, sizeof(m));
2931 m.tex[0] = R_GetTexture(r_shadow_attenuation2dtexture);
2932 m.pointer_texcoord3f[0] = rsurface.vertex3f;
2933 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
2934 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
2935 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
2936 m.tex[1] = R_GetTexture(r_shadow_attenuation2dtexture);
2937 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2938 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
2939 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
2940 m.texmatrix[1] = rsurface.entitytoattenuationz;
2941 R_Mesh_TextureState(&m);
2942 GL_ColorMask(0,0,0,1);
2943 GL_BlendFunc(GL_ONE, GL_ZERO);
2944 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2947 memset(&m, 0, sizeof(m));
2948 m.tex[0] = R_GetTexture(normalmaptexture);
2949 m.texcombinergb[0] = GL_REPLACE;
2950 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2951 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2952 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2953 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2954 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
2955 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
2956 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
2957 m.pointer_texcoord_bufferobject[1] = 0;
2958 m.pointer_texcoord_bufferoffset[1] = 0;
2959 R_Mesh_TextureState(&m);
2960 GL_BlendFunc(GL_DST_ALPHA, GL_ZERO);
2961 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2964 memset(&m, 0, sizeof(m));
2965 m.tex[0] = R_GetTexture(basetexture);
2966 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2967 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2968 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2969 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2970 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
2972 m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
2973 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2974 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2975 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2976 m.texmatrix[1] = rsurface.entitytolight;
2978 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
2980 // this final code is shared
2981 R_Mesh_TextureState(&m);
2982 R_Shadow_RenderLighting_Light_Dot3_Finalize(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase[0] * colorscale, lightcolorbase[1] * colorscale, lightcolorbase[2] * colorscale);
2985 static void R_Shadow_RenderLighting_Light_Dot3_SpecularPass(int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const unsigned short *element3s, int element3i_bufferobject, int element3s_bufferobject, const vec3_t lightcolorbase, rtexture_t *glosstexture, rtexture_t *normalmaptexture, float colorscale)
2987 float glossexponent;
2989 // FIXME: detect blendsquare!
2990 //if (!gl_support_blendsquare)
2993 // generate normalization cubemap texcoords
2994 R_Shadow_GenTexCoords_Specular_NormalCubeMap(firstvertex, numvertices, numtriangles, element3i);
2995 if (r_shadow_texture3d.integer && r_textureunits.integer >= 2 && rsurface.rtlight->currentcubemap != r_texture_whitecube)
2997 // 2/0/0/1/2 3D combine blendsquare path
2998 memset(&m, 0, sizeof(m));
2999 m.tex[0] = R_GetTexture(normalmaptexture);
3000 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
3001 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
3002 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
3003 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
3004 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
3005 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
3006 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
3007 m.pointer_texcoord_bufferobject[1] = 0;
3008 m.pointer_texcoord_bufferoffset[1] = 0;
3009 R_Mesh_TextureState(&m);
3010 GL_ColorMask(0,0,0,1);
3011 // this squares the result
3012 GL_BlendFunc(GL_SRC_ALPHA, GL_ZERO);
3013 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
3015 // second and third pass
3016 R_Mesh_ResetTextureState();
3017 // square alpha in framebuffer a few times to make it shiny
3018 GL_BlendFunc(GL_ZERO, GL_DST_ALPHA);
3019 for (glossexponent = 2;glossexponent * 2 <= r_shadow_glossexponent.value;glossexponent *= 2)
3020 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
3023 memset(&m, 0, sizeof(m));
3024 m.tex3d[0] = R_GetTexture(r_shadow_attenuation3dtexture);
3025 m.pointer_texcoord3f[0] = rsurface.vertex3f;
3026 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
3027 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
3028 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
3029 R_Mesh_TextureState(&m);
3030 GL_BlendFunc(GL_DST_ALPHA, GL_ZERO);
3031 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
3034 memset(&m, 0, sizeof(m));
3035 m.tex[0] = R_GetTexture(glosstexture);
3036 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
3037 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
3038 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
3039 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
3040 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
3042 m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
3043 m.pointer_texcoord3f[1] = rsurface.vertex3f;
3044 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
3045 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
3046 m.texmatrix[1] = rsurface.entitytolight;
3048 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
3050 else if (r_shadow_texture3d.integer && r_textureunits.integer >= 2 && rsurface.rtlight->currentcubemap == r_texture_whitecube /* && gl_support_blendsquare*/) // FIXME: detect blendsquare!
3052 // 2/0/0/2 3D combine blendsquare path
3053 memset(&m, 0, sizeof(m));
3054 m.tex[0] = R_GetTexture(normalmaptexture);
3055 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
3056 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
3057 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
3058 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
3059 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
3060 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
3061 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
3062 m.pointer_texcoord_bufferobject[1] = 0;
3063 m.pointer_texcoord_bufferoffset[1] = 0;
3064 R_Mesh_TextureState(&m);
3065 GL_ColorMask(0,0,0,1);
3066 // this squares the result
3067 GL_BlendFunc(GL_SRC_ALPHA, GL_ZERO);
3068 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
3070 // second and third pass
3071 R_Mesh_ResetTextureState();
3072 // square alpha in framebuffer a few times to make it shiny
3073 GL_BlendFunc(GL_ZERO, GL_DST_ALPHA);
3074 for (glossexponent = 2;glossexponent * 2 <= r_shadow_glossexponent.value;glossexponent *= 2)
3075 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
3078 memset(&m, 0, sizeof(m));
3079 m.tex[0] = R_GetTexture(glosstexture);
3080 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
3081 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
3082 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
3083 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
3084 m.tex3d[1] = R_GetTexture(r_shadow_attenuation3dtexture);
3085 m.pointer_texcoord3f[1] = rsurface.vertex3f;
3086 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
3087 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
3088 m.texmatrix[1] = rsurface.entitytoattenuationxyz;
3089 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
3093 // 2/0/0/2/2 2D combine blendsquare path
3094 memset(&m, 0, sizeof(m));
3095 m.tex[0] = R_GetTexture(normalmaptexture);
3096 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
3097 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
3098 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
3099 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
3100 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
3101 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
3102 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
3103 m.pointer_texcoord_bufferobject[1] = 0;
3104 m.pointer_texcoord_bufferoffset[1] = 0;
3105 R_Mesh_TextureState(&m);
3106 GL_ColorMask(0,0,0,1);
3107 // this squares the result
3108 GL_BlendFunc(GL_SRC_ALPHA, GL_ZERO);
3109 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
3111 // second and third pass
3112 R_Mesh_ResetTextureState();
3113 // square alpha in framebuffer a few times to make it shiny
3114 GL_BlendFunc(GL_ZERO, GL_DST_ALPHA);
3115 for (glossexponent = 2;glossexponent * 2 <= r_shadow_glossexponent.value;glossexponent *= 2)
3116 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
3119 memset(&m, 0, sizeof(m));
3120 m.tex[0] = R_GetTexture(r_shadow_attenuation2dtexture);
3121 m.pointer_texcoord3f[0] = rsurface.vertex3f;
3122 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
3123 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
3124 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
3125 m.tex[1] = R_GetTexture(r_shadow_attenuation2dtexture);
3126 m.pointer_texcoord3f[1] = rsurface.vertex3f;
3127 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
3128 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
3129 m.texmatrix[1] = rsurface.entitytoattenuationz;
3130 R_Mesh_TextureState(&m);
3131 GL_BlendFunc(GL_DST_ALPHA, GL_ZERO);
3132 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
3135 memset(&m, 0, sizeof(m));
3136 m.tex[0] = R_GetTexture(glosstexture);
3137 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
3138 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
3139 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
3140 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
3141 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
3143 m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
3144 m.pointer_texcoord3f[1] = rsurface.vertex3f;
3145 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
3146 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
3147 m.texmatrix[1] = rsurface.entitytolight;
3149 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
3151 // this final code is shared
3152 R_Mesh_TextureState(&m);
3153 R_Shadow_RenderLighting_Light_Dot3_Finalize(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase[0] * colorscale, lightcolorbase[1] * colorscale, lightcolorbase[2] * colorscale);
3156 static void R_Shadow_RenderLighting_Light_Dot3(int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const unsigned short *element3s, int element3i_bufferobject, int element3s_bufferobject, const vec3_t lightcolorbase, const vec3_t lightcolorpants, const vec3_t lightcolorshirt, rtexture_t *basetexture, rtexture_t *pantstexture, rtexture_t *shirttexture, rtexture_t *normalmaptexture, rtexture_t *glosstexture, float ambientscale, float diffusescale, float specularscale, qboolean dopants, qboolean doshirt)
3158 // ARB path (any Geforce, any Radeon)
3159 qboolean doambient = ambientscale > 0;
3160 qboolean dodiffuse = diffusescale > 0;
3161 qboolean dospecular = specularscale > 0;
3162 if (!doambient && !dodiffuse && !dospecular)
3164 R_Mesh_ColorPointer(NULL, 0, 0);
3166 R_Shadow_RenderLighting_Light_Dot3_AmbientPass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase, basetexture, ambientscale * r_refdef.view.colorscale);
3168 R_Shadow_RenderLighting_Light_Dot3_DiffusePass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase, basetexture, normalmaptexture, diffusescale * r_refdef.view.colorscale);
3172 R_Shadow_RenderLighting_Light_Dot3_AmbientPass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorpants, pantstexture, ambientscale * r_refdef.view.colorscale);
3174 R_Shadow_RenderLighting_Light_Dot3_DiffusePass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorpants, pantstexture, normalmaptexture, diffusescale * r_refdef.view.colorscale);
3179 R_Shadow_RenderLighting_Light_Dot3_AmbientPass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorshirt, shirttexture, ambientscale * r_refdef.view.colorscale);
3181 R_Shadow_RenderLighting_Light_Dot3_DiffusePass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorshirt, shirttexture, normalmaptexture, diffusescale * r_refdef.view.colorscale);
3184 R_Shadow_RenderLighting_Light_Dot3_SpecularPass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase, glosstexture, normalmaptexture, specularscale * r_refdef.view.colorscale);
3187 static void R_Shadow_RenderLighting_Light_Vertex_Pass(int firstvertex, int numvertices, int numtriangles, const int *element3i, vec3_t diffusecolor2, vec3_t ambientcolor2)
3194 int newnumtriangles;
3198 int maxtriangles = 4096;
3199 int newelements[4096*3];
3200 R_Shadow_RenderLighting_Light_Vertex_Shading(firstvertex, numvertices, numtriangles, element3i, diffusecolor2, ambientcolor2);
3201 for (renders = 0;renders < 64;renders++)
3206 newnumtriangles = 0;
3208 // due to low fillrate on the cards this vertex lighting path is
3209 // designed for, we manually cull all triangles that do not
3210 // contain a lit vertex
3211 // this builds batches of triangles from multiple surfaces and
3212 // renders them at once
3213 for (i = 0, e = element3i;i < numtriangles;i++, e += 3)
3215 if (VectorLength2(rsurface.array_color4f + e[0] * 4) + VectorLength2(rsurface.array_color4f + e[1] * 4) + VectorLength2(rsurface.array_color4f + e[2] * 4) >= 0.01)
3217 if (newnumtriangles)
3219 newfirstvertex = min(newfirstvertex, e[0]);
3220 newlastvertex = max(newlastvertex, e[0]);
3224 newfirstvertex = e[0];
3225 newlastvertex = e[0];
3227 newfirstvertex = min(newfirstvertex, e[1]);
3228 newlastvertex = max(newlastvertex, e[1]);
3229 newfirstvertex = min(newfirstvertex, e[2]);
3230 newlastvertex = max(newlastvertex, e[2]);
3236 if (newnumtriangles >= maxtriangles)
3238 R_Mesh_Draw(newfirstvertex, newlastvertex - newfirstvertex + 1, 0, newnumtriangles, newelements, NULL, 0, 0);
3239 newnumtriangles = 0;
3245 if (newnumtriangles >= 1)
3247 R_Mesh_Draw(newfirstvertex, newlastvertex - newfirstvertex + 1, 0, newnumtriangles, newelements, NULL, 0, 0);
3250 // if we couldn't find any lit triangles, exit early
3253 // now reduce the intensity for the next overbright pass
3254 // we have to clamp to 0 here incase the drivers have improper
3255 // handling of negative colors
3256 // (some old drivers even have improper handling of >1 color)
3258 for (i = 0, c = rsurface.array_color4f + 4 * firstvertex;i < numvertices;i++, c += 4)
3260 if (c[0] > 1 || c[1] > 1 || c[2] > 1)
3262 c[0] = max(0, c[0] - 1);
3263 c[1] = max(0, c[1] - 1);
3264 c[2] = max(0, c[2] - 1);
3276 static void R_Shadow_RenderLighting_Light_Vertex(int firstvertex, int numvertices, int numtriangles, const int *element3i, const vec3_t lightcolorbase, const vec3_t lightcolorpants, const vec3_t lightcolorshirt, rtexture_t *basetexture, rtexture_t *pantstexture, rtexture_t *shirttexture, rtexture_t *normalmaptexture, rtexture_t *glosstexture, float ambientscale, float diffusescale, float specularscale, qboolean dopants, qboolean doshirt)
3278 // OpenGL 1.1 path (anything)
3279 float ambientcolorbase[3], diffusecolorbase[3];
3280 float ambientcolorpants[3], diffusecolorpants[3];
3281 float ambientcolorshirt[3], diffusecolorshirt[3];
3283 VectorScale(lightcolorbase, ambientscale * 2 * r_refdef.view.colorscale, ambientcolorbase);
3284 VectorScale(lightcolorbase, diffusescale * 2 * r_refdef.view.colorscale, diffusecolorbase);
3285 VectorScale(lightcolorpants, ambientscale * 2 * r_refdef.view.colorscale, ambientcolorpants);
3286 VectorScale(lightcolorpants, diffusescale * 2 * r_refdef.view.colorscale, diffusecolorpants);
3287 VectorScale(lightcolorshirt, ambientscale * 2 * r_refdef.view.colorscale, ambientcolorshirt);
3288 VectorScale(lightcolorshirt, diffusescale * 2 * r_refdef.view.colorscale, diffusecolorshirt);
3289 memset(&m, 0, sizeof(m));
3290 m.tex[0] = R_GetTexture(basetexture);
3291 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
3292 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
3293 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
3294 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
3295 if (r_textureunits.integer >= 2)
3298 m.tex[1] = R_GetTexture(r_shadow_attenuation2dtexture);
3299 m.texmatrix[1] = rsurface.entitytoattenuationxyz;
3300 m.pointer_texcoord3f[1] = rsurface.vertex3f;
3301 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
3302 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
3303 if (r_textureunits.integer >= 3)
3305 // Voodoo4 or Kyro (or Geforce3/Radeon with r_shadow_dot3 off)
3306 m.tex[2] = R_GetTexture(r_shadow_attenuation2dtexture);
3307 m.texmatrix[2] = rsurface.entitytoattenuationz;
3308 m.pointer_texcoord3f[2] = rsurface.vertex3f;
3309 m.pointer_texcoord_bufferobject[2] = rsurface.vertex3f_bufferobject;
3310 m.pointer_texcoord_bufferoffset[2] = rsurface.vertex3f_bufferoffset;
3313 R_Mesh_TextureState(&m);
3314 //R_Mesh_TexBind(0, R_GetTexture(basetexture));
3315 R_Shadow_RenderLighting_Light_Vertex_Pass(firstvertex, numvertices, numtriangles, element3i, diffusecolorbase, ambientcolorbase);
3318 R_Mesh_TexBind(0, R_GetTexture(pantstexture));
3319 R_Shadow_RenderLighting_Light_Vertex_Pass(firstvertex, numvertices, numtriangles, element3i, diffusecolorpants, ambientcolorpants);
3323 R_Mesh_TexBind(0, R_GetTexture(shirttexture));
3324 R_Shadow_RenderLighting_Light_Vertex_Pass(firstvertex, numvertices, numtriangles, element3i, diffusecolorshirt, ambientcolorshirt);
3328 extern cvar_t gl_lightmaps;
3329 void R_Shadow_RenderLighting(int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const unsigned short *element3s, int element3i_bufferobject, int element3s_bufferobject)
3331 float ambientscale, diffusescale, specularscale;
3332 vec3_t lightcolorbase, lightcolorpants, lightcolorshirt;
3334 // calculate colors to render this texture with
3335 lightcolorbase[0] = rsurface.rtlight->currentcolor[0] * rsurface.texture->dlightcolor[0];
3336 lightcolorbase[1] = rsurface.rtlight->currentcolor[1] * rsurface.texture->dlightcolor[1];
3337 lightcolorbase[2] = rsurface.rtlight->currentcolor[2] * rsurface.texture->dlightcolor[2];
3338 ambientscale = rsurface.rtlight->ambientscale;
3339 diffusescale = rsurface.rtlight->diffusescale;
3340 specularscale = rsurface.rtlight->specularscale * rsurface.texture->specularscale;
3341 if (!r_shadow_usenormalmap.integer)
3343 ambientscale += 1.0f * diffusescale;
3347 if ((ambientscale + diffusescale) * VectorLength2(lightcolorbase) + specularscale * VectorLength2(lightcolorbase) < (1.0f / 1048576.0f))
3349 RSurf_SetupDepthAndCulling();
3350 nmap = rsurface.texture->currentskinframe->nmap;
3351 if (gl_lightmaps.integer)
3352 nmap = r_texture_blanknormalmap;
3353 if (rsurface.texture->colormapping && !gl_lightmaps.integer)
3355 qboolean dopants = rsurface.texture->currentskinframe->pants != NULL && VectorLength2(rsurface.colormap_pantscolor) >= (1.0f / 1048576.0f);
3356 qboolean doshirt = rsurface.texture->currentskinframe->shirt != NULL && VectorLength2(rsurface.colormap_shirtcolor) >= (1.0f / 1048576.0f);
3359 lightcolorpants[0] = lightcolorbase[0] * rsurface.colormap_pantscolor[0];
3360 lightcolorpants[1] = lightcolorbase[1] * rsurface.colormap_pantscolor[1];
3361 lightcolorpants[2] = lightcolorbase[2] * rsurface.colormap_pantscolor[2];
3364 VectorClear(lightcolorpants);
3367 lightcolorshirt[0] = lightcolorbase[0] * rsurface.colormap_shirtcolor[0];
3368 lightcolorshirt[1] = lightcolorbase[1] * rsurface.colormap_shirtcolor[1];
3369 lightcolorshirt[2] = lightcolorbase[2] * rsurface.colormap_shirtcolor[2];
3372 VectorClear(lightcolorshirt);
3373 switch (r_shadow_rendermode)
3375 case R_SHADOW_RENDERMODE_VISIBLELIGHTING:
3376 GL_DepthTest(!(rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST) && !r_showdisabledepthtest.integer);
3377 R_Shadow_RenderLighting_VisibleLighting(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase, lightcolorpants, lightcolorshirt, rsurface.texture->basetexture, rsurface.texture->currentskinframe->pants, rsurface.texture->currentskinframe->shirt, nmap, rsurface.texture->glosstexture, ambientscale, diffusescale, specularscale, dopants, doshirt);
3379 case R_SHADOW_RENDERMODE_LIGHT_GLSL:
3380 R_Shadow_RenderLighting_Light_GLSL(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase, lightcolorpants, lightcolorshirt, rsurface.texture->basetexture, rsurface.texture->currentskinframe->pants, rsurface.texture->currentskinframe->shirt, nmap, rsurface.texture->glosstexture, ambientscale, diffusescale, specularscale, dopants, doshirt);
3382 case R_SHADOW_RENDERMODE_LIGHT_DOT3:
3383 R_Shadow_RenderLighting_Light_Dot3(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase, lightcolorpants, lightcolorshirt, rsurface.texture->basetexture, rsurface.texture->currentskinframe->pants, rsurface.texture->currentskinframe->shirt, nmap, rsurface.texture->glosstexture, ambientscale, diffusescale, specularscale, dopants, doshirt);
3385 case R_SHADOW_RENDERMODE_LIGHT_VERTEX:
3386 R_Shadow_RenderLighting_Light_Vertex(firstvertex, numvertices, numtriangles, element3i + firsttriangle * 3, lightcolorbase, lightcolorpants, lightcolorshirt, rsurface.texture->basetexture, rsurface.texture->currentskinframe->pants, rsurface.texture->currentskinframe->shirt, nmap, rsurface.texture->glosstexture, ambientscale, diffusescale, specularscale, dopants, doshirt);
3389 Con_Printf("R_Shadow_RenderLighting: unknown r_shadow_rendermode %i\n", r_shadow_rendermode);
3395 switch (r_shadow_rendermode)
3397 case R_SHADOW_RENDERMODE_VISIBLELIGHTING:
3398 GL_DepthTest(!(rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST) && !r_showdisabledepthtest.integer);
3399 R_Shadow_RenderLighting_VisibleLighting(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase, vec3_origin, vec3_origin, rsurface.texture->basetexture, r_texture_black, r_texture_black, nmap, rsurface.texture->glosstexture, ambientscale, diffusescale, specularscale, false, false);
3401 case R_SHADOW_RENDERMODE_LIGHT_GLSL:
3402 R_Shadow_RenderLighting_Light_GLSL(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase, vec3_origin, vec3_origin, rsurface.texture->basetexture, r_texture_black, r_texture_black, nmap, rsurface.texture->glosstexture, ambientscale, diffusescale, specularscale, false, false);
3404 case R_SHADOW_RENDERMODE_LIGHT_DOT3:
3405 R_Shadow_RenderLighting_Light_Dot3(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase, vec3_origin, vec3_origin, rsurface.texture->basetexture, r_texture_black, r_texture_black, nmap, rsurface.texture->glosstexture, ambientscale, diffusescale, specularscale, false, false);
3407 case R_SHADOW_RENDERMODE_LIGHT_VERTEX:
3408 R_Shadow_RenderLighting_Light_Vertex(firstvertex, numvertices, numtriangles, element3i + firsttriangle * 3, lightcolorbase, vec3_origin, vec3_origin, rsurface.texture->basetexture, r_texture_black, r_texture_black, nmap, rsurface.texture->glosstexture, ambientscale, diffusescale, specularscale, false, false);
3411 Con_Printf("R_Shadow_RenderLighting: unknown r_shadow_rendermode %i\n", r_shadow_rendermode);
3417 void R_RTLight_Update(rtlight_t *rtlight, int isstatic, matrix4x4_t *matrix, vec3_t color, int style, const char *cubemapname, int shadow, vec_t corona, vec_t coronasizescale, vec_t ambientscale, vec_t diffusescale, vec_t specularscale, int flags)
3419 matrix4x4_t tempmatrix = *matrix;
3420 Matrix4x4_Scale(&tempmatrix, r_shadow_lightradiusscale.value, 1);
3422 // if this light has been compiled before, free the associated data
3423 R_RTLight_Uncompile(rtlight);
3425 // clear it completely to avoid any lingering data
3426 memset(rtlight, 0, sizeof(*rtlight));
3428 // copy the properties
3429 rtlight->matrix_lighttoworld = tempmatrix;
3430 Matrix4x4_Invert_Simple(&rtlight->matrix_worldtolight, &tempmatrix);
3431 Matrix4x4_OriginFromMatrix(&tempmatrix, rtlight->shadoworigin);
3432 rtlight->radius = Matrix4x4_ScaleFromMatrix(&tempmatrix);
3433 VectorCopy(color, rtlight->color);
3434 rtlight->cubemapname[0] = 0;
3435 if (cubemapname && cubemapname[0])
3436 strlcpy(rtlight->cubemapname, cubemapname, sizeof(rtlight->cubemapname));
3437 rtlight->shadow = shadow;
3438 rtlight->corona = corona;
3439 rtlight->style = style;
3440 rtlight->isstatic = isstatic;
3441 rtlight->coronasizescale = coronasizescale;
3442 rtlight->ambientscale = ambientscale;
3443 rtlight->diffusescale = diffusescale;
3444 rtlight->specularscale = specularscale;
3445 rtlight->flags = flags;
3447 // compute derived data
3448 //rtlight->cullradius = rtlight->radius;
3449 //rtlight->cullradius2 = rtlight->radius * rtlight->radius;
3450 rtlight->cullmins[0] = rtlight->shadoworigin[0] - rtlight->radius;
3451 rtlight->cullmins[1] = rtlight->shadoworigin[1] - rtlight->radius;
3452 rtlight->cullmins[2] = rtlight->shadoworigin[2] - rtlight->radius;
3453 rtlight->cullmaxs[0] = rtlight->shadoworigin[0] + rtlight->radius;
3454 rtlight->cullmaxs[1] = rtlight->shadoworigin[1] + rtlight->radius;
3455 rtlight->cullmaxs[2] = rtlight->shadoworigin[2] + rtlight->radius;
3458 // compiles rtlight geometry
3459 // (undone by R_FreeCompiledRTLight, which R_UpdateLight calls)
3460 void R_RTLight_Compile(rtlight_t *rtlight)
3463 int numsurfaces, numleafs, numleafpvsbytes, numshadowtrispvsbytes, numlighttrispvsbytes;
3464 int lighttris, shadowtris, shadowzpasstris, shadowzfailtris;
3465 entity_render_t *ent = r_refdef.scene.worldentity;
3466 dp_model_t *model = r_refdef.scene.worldmodel;
3467 unsigned char *data;
3470 // compile the light
3471 rtlight->compiled = true;
3472 rtlight->shadowmode = rtlight->shadow ? (int)r_shadow_shadowmode : -1;
3473 rtlight->static_numleafs = 0;
3474 rtlight->static_numleafpvsbytes = 0;
3475 rtlight->static_leaflist = NULL;
3476 rtlight->static_leafpvs = NULL;
3477 rtlight->static_numsurfaces = 0;
3478 rtlight->static_surfacelist = NULL;
3479 rtlight->static_shadowmap_receivers = 0x3F;
3480 rtlight->static_shadowmap_casters = 0x3F;
3481 rtlight->cullmins[0] = rtlight->shadoworigin[0] - rtlight->radius;
3482 rtlight->cullmins[1] = rtlight->shadoworigin[1] - rtlight->radius;
3483 rtlight->cullmins[2] = rtlight->shadoworigin[2] - rtlight->radius;
3484 rtlight->cullmaxs[0] = rtlight->shadoworigin[0] + rtlight->radius;
3485 rtlight->cullmaxs[1] = rtlight->shadoworigin[1] + rtlight->radius;
3486 rtlight->cullmaxs[2] = rtlight->shadoworigin[2] + rtlight->radius;
3488 if (model && model->GetLightInfo)
3490 // this variable must be set for the CompileShadowVolume/CompileShadowMap code
3491 r_shadow_compilingrtlight = rtlight;
3492 R_Shadow_EnlargeLeafSurfaceTrisBuffer(model->brush.num_leafs, model->num_surfaces, model->brush.shadowmesh ? model->brush.shadowmesh->numtriangles : model->surfmesh.num_triangles, model->surfmesh.num_triangles);
3493 model->GetLightInfo(ent, rtlight->shadoworigin, rtlight->radius, rtlight->cullmins, rtlight->cullmaxs, r_shadow_buffer_leaflist, r_shadow_buffer_leafpvs, &numleafs, r_shadow_buffer_surfacelist, r_shadow_buffer_surfacepvs, &numsurfaces, r_shadow_buffer_shadowtrispvs, r_shadow_buffer_lighttrispvs, r_shadow_buffer_visitingleafpvs);
3494 numleafpvsbytes = (model->brush.num_leafs + 7) >> 3;
3495 numshadowtrispvsbytes = ((model->brush.shadowmesh ? model->brush.shadowmesh->numtriangles : model->surfmesh.num_triangles) + 7) >> 3;
3496 numlighttrispvsbytes = (model->surfmesh.num_triangles + 7) >> 3;
3497 data = (unsigned char *)Mem_Alloc(r_main_mempool, sizeof(int) * numsurfaces + sizeof(int) * numleafs + numleafpvsbytes + numshadowtrispvsbytes + numlighttrispvsbytes);
3498 rtlight->static_numsurfaces = numsurfaces;
3499 rtlight->static_surfacelist = (int *)data;data += sizeof(int) * numsurfaces;
3500 rtlight->static_numleafs = numleafs;
3501 rtlight->static_leaflist = (int *)data;data += sizeof(int) * numleafs;
3502 rtlight->static_numleafpvsbytes = numleafpvsbytes;
3503 rtlight->static_leafpvs = (unsigned char *)data;data += numleafpvsbytes;
3504 rtlight->static_numshadowtrispvsbytes = numshadowtrispvsbytes;
3505 rtlight->static_shadowtrispvs = (unsigned char *)data;data += numshadowtrispvsbytes;
3506 rtlight->static_numlighttrispvsbytes = numlighttrispvsbytes;
3507 rtlight->static_lighttrispvs = (unsigned char *)data;data += numlighttrispvsbytes;
3508 if (rtlight->static_numsurfaces)
3509 memcpy(rtlight->static_surfacelist, r_shadow_buffer_surfacelist, rtlight->static_numsurfaces * sizeof(*rtlight->static_surfacelist));
3510 if (rtlight->static_numleafs)
3511 memcpy(rtlight->static_leaflist, r_shadow_buffer_leaflist, rtlight->static_numleafs * sizeof(*rtlight->static_leaflist));
3512 if (rtlight->static_numleafpvsbytes)
3513 memcpy(rtlight->static_leafpvs, r_shadow_buffer_leafpvs, rtlight->static_numleafpvsbytes);
3514 if (rtlight->static_numshadowtrispvsbytes)
3515 memcpy(rtlight->static_shadowtrispvs, r_shadow_buffer_shadowtrispvs, rtlight->static_numshadowtrispvsbytes);
3516 if (rtlight->static_numlighttrispvsbytes)
3517 memcpy(rtlight->static_lighttrispvs, r_shadow_buffer_lighttrispvs, rtlight->static_numlighttrispvsbytes);
3518 switch (rtlight->shadowmode)
3520 case R_SHADOW_SHADOWMODE_SHADOWMAP2D:
3521 case R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE:
3522 case R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE:
3523 if (model->CompileShadowMap && rtlight->shadow)
3524 model->CompileShadowMap(ent, rtlight->shadoworigin, NULL, rtlight->radius, numsurfaces, r_shadow_buffer_surfacelist);
3527 if (model->CompileShadowVolume && rtlight->shadow)
3528 model->CompileShadowVolume(ent, rtlight->shadoworigin, NULL, rtlight->radius, numsurfaces, r_shadow_buffer_surfacelist);
3531 // now we're done compiling the rtlight
3532 r_shadow_compilingrtlight = NULL;
3536 // use smallest available cullradius - box radius or light radius
3537 //rtlight->cullradius = RadiusFromBoundsAndOrigin(rtlight->cullmins, rtlight->cullmaxs, rtlight->shadoworigin);
3538 //rtlight->cullradius = min(rtlight->cullradius, rtlight->radius);
3540 shadowzpasstris = 0;
3541 if (rtlight->static_meshchain_shadow_zpass)
3542 for (mesh = rtlight->static_meshchain_shadow_zpass;mesh;mesh = mesh->next)
3543 shadowzpasstris += mesh->numtriangles;
3545 shadowzfailtris = 0;
3546 if (rtlight->static_meshchain_shadow_zfail)
3547 for (mesh = rtlight->static_meshchain_shadow_zfail;mesh;mesh = mesh->next)
3548 shadowzfailtris += mesh->numtriangles;
3551 if (rtlight->static_numlighttrispvsbytes)
3552 for (i = 0;i < rtlight->static_numlighttrispvsbytes*8;i++)
3553 if (CHECKPVSBIT(rtlight->static_lighttrispvs, i))
3557 if (rtlight->static_numlighttrispvsbytes)
3558 for (i = 0;i < rtlight->static_numshadowtrispvsbytes*8;i++)
3559 if (CHECKPVSBIT(rtlight->static_shadowtrispvs, i))
3562 if (developer.integer >= 10)
3563 Con_Printf("static light built: %f %f %f : %f %f %f box, %i light triangles, %i shadow triangles, %i zpass/%i zfail compiled shadow volume triangles\n", rtlight->cullmins[0], rtlight->cullmins[1], rtlight->cullmins[2], rtlight->cullmaxs[0], rtlight->cullmaxs[1], rtlight->cullmaxs[2], lighttris, shadowtris, shadowzpasstris, shadowzfailtris);
3566 void R_RTLight_Uncompile(rtlight_t *rtlight)
3568 if (rtlight->compiled)
3570 if (rtlight->static_meshchain_shadow_zpass)
3571 Mod_ShadowMesh_Free(rtlight->static_meshchain_shadow_zpass);
3572 rtlight->static_meshchain_shadow_zpass = NULL;
3573 if (rtlight->static_meshchain_shadow_zfail)
3574 Mod_ShadowMesh_Free(rtlight->static_meshchain_shadow_zfail);
3575 rtlight->static_meshchain_shadow_zfail = NULL;
3576 if (rtlight->static_meshchain_shadow_shadowmap)
3577 Mod_ShadowMesh_Free(rtlight->static_meshchain_shadow_shadowmap);
3578 rtlight->static_meshchain_shadow_shadowmap = NULL;
3579 // these allocations are grouped
3580 if (rtlight->static_surfacelist)
3581 Mem_Free(rtlight->static_surfacelist);
3582 rtlight->static_numleafs = 0;
3583 rtlight->static_numleafpvsbytes = 0;
3584 rtlight->static_leaflist = NULL;
3585 rtlight->static_leafpvs = NULL;
3586 rtlight->static_numsurfaces = 0;
3587 rtlight->static_surfacelist = NULL;
3588 rtlight->static_numshadowtrispvsbytes = 0;
3589 rtlight->static_shadowtrispvs = NULL;
3590 rtlight->static_numlighttrispvsbytes = 0;
3591 rtlight->static_lighttrispvs = NULL;
3592 rtlight->compiled = false;
3596 void R_Shadow_UncompileWorldLights(void)
3600 size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
3601 for (lightindex = 0;lightindex < range;lightindex++)
3603 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
3606 R_RTLight_Uncompile(&light->rtlight);
3610 void R_Shadow_ComputeShadowCasterCullingPlanes(rtlight_t *rtlight)
3614 // reset the count of frustum planes
3615 // see rsurface.rtlight_frustumplanes definition for how much this array
3617 rsurface.rtlight_numfrustumplanes = 0;
3619 // haven't implemented a culling path for ortho rendering
3620 if (!r_refdef.view.useperspective)
3622 // check if the light is on screen and copy the 4 planes if it is
3623 for (i = 0;i < 4;i++)
3624 if (PlaneDiff(rtlight->shadoworigin, &r_refdef.view.frustum[i]) < -0.03125)
3627 for (i = 0;i < 4;i++)
3628 rsurface.rtlight_frustumplanes[rsurface.rtlight_numfrustumplanes++] = r_refdef.view.frustum[i];
3633 // generate a deformed frustum that includes the light origin, this is
3634 // used to cull shadow casting surfaces that can not possibly cast a
3635 // shadow onto the visible light-receiving surfaces, which can be a
3638 // if the light origin is onscreen the result will be 4 planes exactly
3639 // if the light origin is offscreen on only one axis the result will
3640 // be exactly 5 planes (split-side case)
3641 // if the light origin is offscreen on two axes the result will be
3642 // exactly 4 planes (stretched corner case)
3643 for (i = 0;i < 4;i++)
3645 // quickly reject standard frustum planes that put the light
3646 // origin outside the frustum
3647 if (PlaneDiff(rtlight->shadoworigin, &r_refdef.view.frustum[i]) < -0.03125)
3650 rsurface.rtlight_frustumplanes[rsurface.rtlight_numfrustumplanes++] = r_refdef.view.frustum[i];
3652 // if all the standard frustum planes were accepted, the light is onscreen
3653 // otherwise we need to generate some more planes below...
3654 if (rsurface.rtlight_numfrustumplanes < 4)
3656 // at least one of the stock frustum planes failed, so we need to
3657 // create one or two custom planes to enclose the light origin
3658 for (i = 0;i < 4;i++)
3660 // create a plane using the view origin and light origin, and a
3661 // single point from the frustum corner set
3662 TriangleNormal(r_refdef.view.origin, r_refdef.view.frustumcorner[i], rtlight->shadoworigin, plane.normal);
3663 VectorNormalize(plane.normal);
3664 plane.dist = DotProduct(r_refdef.view.origin, plane.normal);
3665 // see if this plane is backwards and flip it if so
3666 for (j = 0;j < 4;j++)
3667 if (j != i && DotProduct(r_refdef.view.frustumcorner[j], plane.normal) - plane.dist < -0.03125)
3671 VectorNegate(plane.normal, plane.normal);
3673 // flipped plane, test again to see if it is now valid
3674 for (j = 0;j < 4;j++)
3675 if (j != i && DotProduct(r_refdef.view.frustumcorner[j], plane.normal) - plane.dist < -0.03125)
3677 // if the plane is still not valid, then it is dividing the
3678 // frustum and has to be rejected
3682 // we have created a valid plane, compute extra info
3683 PlaneClassify(&plane);
3685 rsurface.rtlight_frustumplanes[rsurface.rtlight_numfrustumplanes++] = plane;
3687 // if we've found 5 frustum planes then we have constructed a
3688 // proper split-side case and do not need to keep searching for
3689 // planes to enclose the light origin
3690 if (rsurface.rtlight_numfrustumplanes == 5)
3698 for (i = 0;i < rsurface.rtlight_numfrustumplanes;i++)
3700 plane = rsurface.rtlight_frustumplanes[i];
3701 Con_Printf("light %p plane #%i %f %f %f : %f (%f %f %f %f %f)\n", rtlight, i, plane.normal[0], plane.normal[1], plane.normal[2], plane.dist, PlaneDiff(r_refdef.view.frustumcorner[0], &plane), PlaneDiff(r_refdef.view.frustumcorner[1], &plane), PlaneDiff(r_refdef.view.frustumcorner[2], &plane), PlaneDiff(r_refdef.view.frustumcorner[3], &plane), PlaneDiff(rtlight->shadoworigin, &plane));
3706 // now add the light-space box planes if the light box is rotated, as any
3707 // caster outside the oriented light box is irrelevant (even if it passed
3708 // the worldspace light box, which is axial)
3709 if (rtlight->matrix_lighttoworld.m[0][0] != 1 || rtlight->matrix_lighttoworld.m[1][1] != 1 || rtlight->matrix_lighttoworld.m[2][2] != 1)
3711 for (i = 0;i < 6;i++)
3715 v[i >> 1] = (i & 1) ? -1 : 1;
3716 Matrix4x4_Transform(&rtlight->matrix_lighttoworld, v, plane.normal);
3717 VectorSubtract(plane.normal, rtlight->shadoworigin, plane.normal);
3718 plane.dist = VectorNormalizeLength(plane.normal);
3719 plane.dist += DotProduct(plane.normal, rtlight->shadoworigin);
3720 rsurface.rtlight_frustumplanes[rsurface.rtlight_numfrustumplanes++] = plane;
3726 // add the world-space reduced box planes
3727 for (i = 0;i < 6;i++)
3729 VectorClear(plane.normal);
3730 plane.normal[i >> 1] = (i & 1) ? -1 : 1;
3731 plane.dist = (i & 1) ? -rsurface.rtlight_cullmaxs[i >> 1] : rsurface.rtlight_cullmins[i >> 1];
3732 rsurface.rtlight_frustumplanes[rsurface.rtlight_numfrustumplanes++] = plane;
3741 // reduce all plane distances to tightly fit the rtlight cull box, which
3743 VectorSet(points[0], rsurface.rtlight_cullmins[0], rsurface.rtlight_cullmins[1], rsurface.rtlight_cullmins[2]);
3744 VectorSet(points[1], rsurface.rtlight_cullmaxs[0], rsurface.rtlight_cullmins[1], rsurface.rtlight_cullmins[2]);
3745 VectorSet(points[2], rsurface.rtlight_cullmins[0], rsurface.rtlight_cullmaxs[1], rsurface.rtlight_cullmins[2]);
3746 VectorSet(points[3], rsurface.rtlight_cullmaxs[0], rsurface.rtlight_cullmaxs[1], rsurface.rtlight_cullmins[2]);
3747 VectorSet(points[4], rsurface.rtlight_cullmins[0], rsurface.rtlight_cullmins[1], rsurface.rtlight_cullmaxs[2]);
3748 VectorSet(points[5], rsurface.rtlight_cullmaxs[0], rsurface.rtlight_cullmins[1], rsurface.rtlight_cullmaxs[2]);
3749 VectorSet(points[6], rsurface.rtlight_cullmins[0], rsurface.rtlight_cullmaxs[1], rsurface.rtlight_cullmaxs[2]);
3750 VectorSet(points[7], rsurface.rtlight_cullmaxs[0], rsurface.rtlight_cullmaxs[1], rsurface.rtlight_cullmaxs[2]);
3751 oldnum = rsurface.rtlight_numfrustumplanes;
3752 rsurface.rtlight_numfrustumplanes = 0;
3753 for (j = 0;j < oldnum;j++)
3755 // find the nearest point on the box to this plane
3756 bestdist = DotProduct(rsurface.rtlight_frustumplanes[j].normal, points[0]);
3757 for (i = 1;i < 8;i++)
3759 dist = DotProduct(rsurface.rtlight_frustumplanes[j].normal, points[i]);
3760 if (bestdist > dist)
3763 Con_Printf("light %p %splane #%i %f %f %f : %f < %f\n", rtlight, rsurface.rtlight_frustumplanes[j].dist < bestdist + 0.03125 ? "^2" : "^1", j, rsurface.rtlight_frustumplanes[j].normal[0], rsurface.rtlight_frustumplanes[j].normal[1], rsurface.rtlight_frustumplanes[j].normal[2], rsurface.rtlight_frustumplanes[j].dist, bestdist);
3764 // if the nearest point is near or behind the plane, we want this
3765 // plane, otherwise the plane is useless as it won't cull anything
3766 if (rsurface.rtlight_frustumplanes[j].dist < bestdist + 0.03125)
3768 PlaneClassify(&rsurface.rtlight_frustumplanes[j]);
3769 rsurface.rtlight_frustumplanes[rsurface.rtlight_numfrustumplanes++] = rsurface.rtlight_frustumplanes[j];
3776 void R_Shadow_DrawWorldShadow_ShadowMap(int numsurfaces, int *surfacelist, const unsigned char *trispvs, const unsigned char *surfacesides)
3780 RSurf_ActiveWorldEntity();
3782 if (rsurface.rtlight->compiled && r_shadow_realtime_world_compile.integer && r_shadow_realtime_world_compileshadow.integer)
3785 GL_CullFace(GL_NONE);
3786 mesh = rsurface.rtlight->static_meshchain_shadow_shadowmap;
3787 for (;mesh;mesh = mesh->next)
3789 if (!mesh->sidetotals[r_shadow_shadowmapside])
3791 r_refdef.stats.lights_shadowtriangles += mesh->sidetotals[r_shadow_shadowmapside];
3792 R_Mesh_VertexPointer(mesh->vertex3f, mesh->vbo, mesh->vbooffset_vertex3f);
3793 R_Mesh_Draw(0, mesh->numverts, mesh->sideoffsets[r_shadow_shadowmapside], mesh->sidetotals[r_shadow_shadowmapside], mesh->element3i, mesh->element3s, mesh->ebo3i, mesh->ebo3s);
3797 else if (r_refdef.scene.worldentity->model)
3798 r_refdef.scene.worldmodel->DrawShadowMap(r_shadow_shadowmapside, r_refdef.scene.worldentity, rsurface.rtlight->shadoworigin, NULL, rsurface.rtlight->radius, numsurfaces, surfacelist, surfacesides, rsurface.rtlight_cullmins, rsurface.rtlight_cullmaxs);
3800 rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
3803 void R_Shadow_DrawWorldShadow_ShadowVolume(int numsurfaces, int *surfacelist, const unsigned char *trispvs)
3808 int surfacelistindex;
3809 msurface_t *surface;
3811 RSurf_ActiveWorldEntity();
3813 if (rsurface.rtlight->compiled && r_shadow_realtime_world_compile.integer && r_shadow_realtime_world_compileshadow.integer)
3816 zpass = R_Shadow_UseZPass(r_refdef.scene.worldmodel->normalmins, r_refdef.scene.worldmodel->normalmaxs);
3817 R_Shadow_RenderMode_StencilShadowVolumes(zpass);
3818 mesh = zpass ? rsurface.rtlight->static_meshchain_shadow_zpass : rsurface.rtlight->static_meshchain_shadow_zfail;
3819 for (;mesh;mesh = mesh->next)
3821 r_refdef.stats.lights_shadowtriangles += mesh->numtriangles;
3822 R_Mesh_VertexPointer(mesh->vertex3f, mesh->vbo, mesh->vbooffset_vertex3f);
3823 GL_LockArrays(0, mesh->numverts);
3824 if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZPASS_STENCIL)
3826 // increment stencil if frontface is infront of depthbuffer
3827 GL_CullFace(r_refdef.view.cullface_back);
3828 qglStencilOp(GL_KEEP, GL_KEEP, GL_INCR);CHECKGLERROR
3829 R_Mesh_Draw(0, mesh->numverts, 0, mesh->numtriangles, mesh->element3i, mesh->element3s, mesh->ebo3i, mesh->ebo3s);
3830 // decrement stencil if backface is infront of depthbuffer
3831 GL_CullFace(r_refdef.view.cullface_front);
3832 qglStencilOp(GL_KEEP, GL_KEEP, GL_DECR);CHECKGLERROR
3834 else if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZFAIL_STENCIL)
3836 // decrement stencil if backface is behind depthbuffer
3837 GL_CullFace(r_refdef.view.cullface_front);
3838 qglStencilOp(GL_KEEP, GL_DECR, GL_KEEP);CHECKGLERROR
3839 R_Mesh_Draw(0, mesh->numverts, 0, mesh->numtriangles, mesh->element3i, mesh->element3s, mesh->ebo3i, mesh->ebo3s);
3840 // increment stencil if frontface is behind depthbuffer
3841 GL_CullFace(r_refdef.view.cullface_back);
3842 qglStencilOp(GL_KEEP, GL_INCR, GL_KEEP);CHECKGLERROR
3844 R_Mesh_Draw(0, mesh->numverts, 0, mesh->numtriangles, mesh->element3i, mesh->element3s, mesh->ebo3i, mesh->ebo3s);
3845 GL_LockArrays(0, 0);
3849 else if (numsurfaces && r_refdef.scene.worldmodel->brush.shadowmesh && r_shadow_culltriangles.integer)
3851 R_Shadow_PrepareShadowMark(r_refdef.scene.worldmodel->brush.shadowmesh->numtriangles);
3852 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
3854 surface = r_refdef.scene.worldmodel->data_surfaces + surfacelist[surfacelistindex];
3855 for (t = surface->num_firstshadowmeshtriangle, tend = t + surface->num_triangles;t < tend;t++)
3856 if (CHECKPVSBIT(trispvs, t))
3857 shadowmarklist[numshadowmark++] = t;
3859 R_Shadow_VolumeFromList(r_refdef.scene.worldmodel->brush.shadowmesh->numverts, r_refdef.scene.worldmodel->brush.shadowmesh->numtriangles, r_refdef.scene.worldmodel->brush.shadowmesh->vertex3f, r_refdef.scene.worldmodel->brush.shadowmesh->element3i, r_refdef.scene.worldmodel->brush.shadowmesh->neighbor3i, rsurface.rtlight->shadoworigin, NULL, rsurface.rtlight->radius + r_refdef.scene.worldmodel->radius*2 + r_shadow_projectdistance.value, numshadowmark, shadowmarklist, r_refdef.scene.worldmodel->normalmins, r_refdef.scene.worldmodel->normalmaxs);
3861 else if (numsurfaces)
3862 r_refdef.scene.worldmodel->DrawShadowVolume(r_refdef.scene.worldentity, rsurface.rtlight->shadoworigin, NULL, rsurface.rtlight->radius, numsurfaces, surfacelist, rsurface.rtlight_cullmins, rsurface.rtlight_cullmaxs);
3864 rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
3867 void R_Shadow_DrawEntityShadow(entity_render_t *ent)
3869 vec3_t relativeshadoworigin, relativeshadowmins, relativeshadowmaxs;
3870 vec_t relativeshadowradius;
3871 RSurf_ActiveModelEntity(ent, false, false);
3872 Matrix4x4_Transform(&ent->inversematrix, rsurface.rtlight->shadoworigin, relativeshadoworigin);
3873 relativeshadowradius = rsurface.rtlight->radius / ent->scale;
3874 relativeshadowmins[0] = relativeshadoworigin[0] - relativeshadowradius;
3875 relativeshadowmins[1] = relativeshadoworigin[1] - relativeshadowradius;
3876 relativeshadowmins[2] = relativeshadoworigin[2] - relativeshadowradius;
3877 relativeshadowmaxs[0] = relativeshadoworigin[0] + relativeshadowradius;
3878 relativeshadowmaxs[1] = relativeshadoworigin[1] + relativeshadowradius;
3879 relativeshadowmaxs[2] = relativeshadoworigin[2] + relativeshadowradius;
3880 if (r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAPRECTANGLE || r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAPCUBESIDE || r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAP2D)
3882 ent->model->DrawShadowMap(r_shadow_shadowmapside, ent, relativeshadoworigin, NULL, relativeshadowradius, ent->model->nummodelsurfaces, ent->model->sortedmodelsurfaces, NULL, relativeshadowmins, relativeshadowmaxs);
3885 ent->model->DrawShadowVolume(ent, relativeshadoworigin, NULL, relativeshadowradius, ent->model->nummodelsurfaces, ent->model->sortedmodelsurfaces, relativeshadowmins, relativeshadowmaxs);
3886 rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
3889 void R_Shadow_SetupEntityLight(const entity_render_t *ent)
3891 // set up properties for rendering light onto this entity
3892 RSurf_ActiveModelEntity(ent, true, true);
3893 GL_AlphaTest(false);
3894 Matrix4x4_Concat(&rsurface.entitytolight, &rsurface.rtlight->matrix_worldtolight, &ent->matrix);
3895 Matrix4x4_Concat(&rsurface.entitytoattenuationxyz, &matrix_attenuationxyz, &rsurface.entitytolight);
3896 Matrix4x4_Concat(&rsurface.entitytoattenuationz, &matrix_attenuationz, &rsurface.entitytolight);
3897 Matrix4x4_Transform(&ent->inversematrix, rsurface.rtlight->shadoworigin, rsurface.entitylightorigin);
3898 if (r_shadow_lightingrendermode == R_SHADOW_RENDERMODE_LIGHT_GLSL)
3899 R_Mesh_TexMatrix(3, &rsurface.entitytolight);
3902 void R_Shadow_DrawWorldLight(int numsurfaces, int *surfacelist, const unsigned char *trispvs)
3904 if (!r_refdef.scene.worldmodel->DrawLight)
3907 // set up properties for rendering light onto this entity
3908 RSurf_ActiveWorldEntity();
3909 GL_AlphaTest(false);
3910 rsurface.entitytolight = rsurface.rtlight->matrix_worldtolight;
3911 Matrix4x4_Concat(&rsurface.entitytoattenuationxyz, &matrix_attenuationxyz, &rsurface.entitytolight);
3912 Matrix4x4_Concat(&rsurface.entitytoattenuationz, &matrix_attenuationz, &rsurface.entitytolight);
3913 VectorCopy(rsurface.rtlight->shadoworigin, rsurface.entitylightorigin);
3914 if (r_shadow_lightingrendermode == R_SHADOW_RENDERMODE_LIGHT_GLSL)
3915 R_Mesh_TexMatrix(3, &rsurface.entitytolight);
3917 r_refdef.scene.worldmodel->DrawLight(r_refdef.scene.worldentity, numsurfaces, surfacelist, trispvs);
3919 rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
3922 void R_Shadow_DrawEntityLight(entity_render_t *ent)
3924 dp_model_t *model = ent->model;
3925 if (!model->DrawLight)
3928 R_Shadow_SetupEntityLight(ent);
3930 model->DrawLight(ent, model->nummodelsurfaces, model->sortedmodelsurfaces, NULL);
3932 rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
3935 void R_DrawRTLight(rtlight_t *rtlight, qboolean visible)
3939 int numleafs, numsurfaces;
3940 int *leaflist, *surfacelist;
3941 unsigned char *leafpvs, *shadowtrispvs, *lighttrispvs, *surfacesides;
3942 int numlightentities;
3943 int numlightentities_noselfshadow;
3944 int numshadowentities;
3945 int numshadowentities_noselfshadow;
3946 static entity_render_t *lightentities[MAX_EDICTS];
3947 static entity_render_t *shadowentities[MAX_EDICTS];
3948 static unsigned char entitysides[MAX_EDICTS];
3949 int lightentities_noselfshadow;
3950 int shadowentities_noselfshadow;
3951 vec3_t nearestpoint;
3953 qboolean castshadows;
3956 // skip lights that don't light because of ambientscale+diffusescale+specularscale being 0 (corona only lights)
3957 // skip lights that are basically invisible (color 0 0 0)
3958 if (VectorLength2(rtlight->color) * (rtlight->ambientscale + rtlight->diffusescale + rtlight->specularscale) < (1.0f / 1048576.0f))
3961 // loading is done before visibility checks because loading should happen
3962 // all at once at the start of a level, not when it stalls gameplay.
3963 // (especially important to benchmarks)
3965 if (rtlight->isstatic && (!rtlight->compiled || (rtlight->shadow && rtlight->shadowmode != (int)r_shadow_shadowmode)) && r_shadow_realtime_world_compile.integer)
3967 if (rtlight->compiled)
3968 R_RTLight_Uncompile(rtlight);
3969 R_RTLight_Compile(rtlight);
3973 rtlight->currentcubemap = rtlight->cubemapname[0] ? R_Shadow_Cubemap(rtlight->cubemapname) : r_texture_whitecube;
3975 // look up the light style value at this time
3976 f = (rtlight->style >= 0 ? r_refdef.scene.rtlightstylevalue[rtlight->style] : 1) * r_shadow_lightintensityscale.value;
3977 VectorScale(rtlight->color, f, rtlight->currentcolor);
3979 if (rtlight->selected)
3981 f = 2 + sin(realtime * M_PI * 4.0);
3982 VectorScale(rtlight->currentcolor, f, rtlight->currentcolor);
3986 // if lightstyle is currently off, don't draw the light
3987 if (VectorLength2(rtlight->currentcolor) < (1.0f / 1048576.0f))
3990 // if the light box is offscreen, skip it
3991 if (R_CullBox(rtlight->cullmins, rtlight->cullmaxs))
3994 VectorCopy(rtlight->cullmins, rsurface.rtlight_cullmins);
3995 VectorCopy(rtlight->cullmaxs, rsurface.rtlight_cullmaxs);
3997 if (rtlight->compiled && r_shadow_realtime_world_compile.integer)
3999 // compiled light, world available and can receive realtime lighting
4000 // retrieve leaf information
4001 numleafs = rtlight->static_numleafs;
4002 leaflist = rtlight->static_leaflist;
4003 leafpvs = rtlight->static_leafpvs;
4004 numsurfaces = rtlight->static_numsurfaces;
4005 surfacelist = rtlight->static_surfacelist;
4006 surfacesides = NULL;
4007 shadowtrispvs = rtlight->static_shadowtrispvs;
4008 lighttrispvs = rtlight->static_lighttrispvs;
4010 else if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->GetLightInfo)
4012 // dynamic light, world available and can receive realtime lighting
4013 // calculate lit surfaces and leafs
4014 R_Shadow_EnlargeLeafSurfaceTrisBuffer(r_refdef.scene.worldmodel->brush.num_leafs, r_refdef.scene.worldmodel->num_surfaces, r_refdef.scene.worldmodel->brush.shadowmesh ? r_refdef.scene.worldmodel->brush.shadowmesh->numtriangles : r_refdef.scene.worldmodel->surfmesh.num_triangles, r_refdef.scene.worldmodel->surfmesh.num_triangles);
4015 r_refdef.scene.worldmodel->GetLightInfo(r_refdef.scene.worldentity, rtlight->shadoworigin, rtlight->radius, rsurface.rtlight_cullmins, rsurface.rtlight_cullmaxs, r_shadow_buffer_leaflist, r_shadow_buffer_leafpvs, &numleafs, r_shadow_buffer_surfacelist, r_shadow_buffer_surfacepvs, &numsurfaces, r_shadow_buffer_shadowtrispvs, r_shadow_buffer_lighttrispvs, r_shadow_buffer_visitingleafpvs);
4016 leaflist = r_shadow_buffer_leaflist;
4017 leafpvs = r_shadow_buffer_leafpvs;
4018 surfacelist = r_shadow_buffer_surfacelist;
4019 surfacesides = r_shadow_buffer_surfacesides;
4020 shadowtrispvs = r_shadow_buffer_shadowtrispvs;
4021 lighttrispvs = r_shadow_buffer_lighttrispvs;
4022 // if the reduced leaf bounds are offscreen, skip it
4023 if (R_CullBox(rsurface.rtlight_cullmins, rsurface.rtlight_cullmaxs))
4034 surfacesides = NULL;
4035 shadowtrispvs = NULL;
4036 lighttrispvs = NULL;
4038 // check if light is illuminating any visible leafs
4041 for (i = 0;i < numleafs;i++)
4042 if (r_refdef.viewcache.world_leafvisible[leaflist[i]])
4047 // set up a scissor rectangle for this light
4048 if (R_Shadow_ScissorForBBox(rsurface.rtlight_cullmins, rsurface.rtlight_cullmaxs))
4051 R_Shadow_ComputeShadowCasterCullingPlanes(rtlight);
4053 // make a list of lit entities and shadow casting entities
4054 numlightentities = 0;
4055 numlightentities_noselfshadow = 0;
4056 lightentities_noselfshadow = sizeof(lightentities)/sizeof(lightentities[0]) - 1;
4057 numshadowentities = 0;
4058 numshadowentities_noselfshadow = 0;
4059 shadowentities_noselfshadow = sizeof(shadowentities)/sizeof(shadowentities[0]) - 1;
4061 // add dynamic entities that are lit by the light
4062 if (r_drawentities.integer)
4064 for (i = 0;i < r_refdef.scene.numentities;i++)
4067 entity_render_t *ent = r_refdef.scene.entities[i];
4069 if (!BoxesOverlap(ent->mins, ent->maxs, rsurface.rtlight_cullmins, rsurface.rtlight_cullmaxs))
4071 // skip the object entirely if it is not within the valid
4072 // shadow-casting region (which includes the lit region)
4073 if (R_CullBoxCustomPlanes(ent->mins, ent->maxs, rsurface.rtlight_numfrustumplanes, rsurface.rtlight_frustumplanes))
4075 if (!(model = ent->model))
4077 if (r_refdef.viewcache.entityvisible[i] && model->DrawLight && (ent->flags & RENDER_LIGHT))
4079 // this entity wants to receive light, is visible, and is
4080 // inside the light box
4081 // TODO: check if the surfaces in the model can receive light
4082 // so now check if it's in a leaf seen by the light
4083 if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.BoxTouchingLeafPVS && !r_refdef.scene.worldmodel->brush.BoxTouchingLeafPVS(r_refdef.scene.worldmodel, leafpvs, ent->mins, ent->maxs))
4085 if (ent->flags & RENDER_NOSELFSHADOW)
4086 lightentities[lightentities_noselfshadow - numlightentities_noselfshadow++] = ent;
4088 lightentities[numlightentities++] = ent;
4089 // since it is lit, it probably also casts a shadow...
4090 // about the VectorDistance2 - light emitting entities should not cast their own shadow
4091 Matrix4x4_OriginFromMatrix(&ent->matrix, org);
4092 if ((ent->flags & RENDER_SHADOW) && model->DrawShadowVolume && VectorDistance2(org, rtlight->shadoworigin) > 0.1)
4094 // note: exterior models without the RENDER_NOSELFSHADOW
4095 // flag still create a RENDER_NOSELFSHADOW shadow but
4096 // are lit normally, this means that they are
4097 // self-shadowing but do not shadow other
4098 // RENDER_NOSELFSHADOW entities such as the gun
4099 // (very weird, but keeps the player shadow off the gun)
4100 if (ent->flags & (RENDER_NOSELFSHADOW | RENDER_EXTERIORMODEL))
4101 shadowentities[shadowentities_noselfshadow - numshadowentities_noselfshadow++] = ent;
4103 shadowentities[numshadowentities++] = ent;
4106 else if (ent->flags & RENDER_SHADOW)
4108 // this entity is not receiving light, but may still need to
4110 // TODO: check if the surfaces in the model can cast shadow
4111 // now check if it is in a leaf seen by the light
4112 if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.BoxTouchingLeafPVS && !r_refdef.scene.worldmodel->brush.BoxTouchingLeafPVS(r_refdef.scene.worldmodel, leafpvs, ent->mins, ent->maxs))
4114 // about the VectorDistance2 - light emitting entities should not cast their own shadow
4115 Matrix4x4_OriginFromMatrix(&ent->matrix, org);
4116 if ((ent->flags & RENDER_SHADOW) && model->DrawShadowVolume && VectorDistance2(org, rtlight->shadoworigin) > 0.1)
4118 if (ent->flags & (RENDER_NOSELFSHADOW | RENDER_EXTERIORMODEL))
4119 shadowentities[shadowentities_noselfshadow - numshadowentities_noselfshadow++] = ent;
4121 shadowentities[numshadowentities++] = ent;
4127 // return if there's nothing at all to light
4128 if (!numlightentities && !numsurfaces)
4131 // don't let sound skip if going slow
4132 if (r_refdef.scene.extraupdate)
4135 // make this the active rtlight for rendering purposes
4136 R_Shadow_RenderMode_ActiveLight(rtlight);
4137 // count this light in the r_speeds
4138 r_refdef.stats.lights++;
4140 if (r_showshadowvolumes.integer && r_refdef.view.showdebug && numsurfaces + numshadowentities + numshadowentities_noselfshadow && rtlight->shadow && (rtlight->isstatic ? r_refdef.scene.rtworldshadows : r_refdef.scene.rtdlightshadows))
4142 // optionally draw visible shape of the shadow volumes
4143 // for performance analysis by level designers
4144 R_Shadow_RenderMode_VisibleShadowVolumes();
4146 R_Shadow_DrawWorldShadow_ShadowVolume(numsurfaces, surfacelist, shadowtrispvs);
4147 for (i = 0;i < numshadowentities;i++)
4148 R_Shadow_DrawEntityShadow(shadowentities[i]);
4149 for (i = 0;i < numshadowentities_noselfshadow;i++)
4150 R_Shadow_DrawEntityShadow(shadowentities[shadowentities_noselfshadow - i]);
4153 if (r_showlighting.integer && r_refdef.view.showdebug && numsurfaces + numlightentities + numlightentities_noselfshadow)
4155 // optionally draw the illuminated areas
4156 // for performance analysis by level designers
4157 R_Shadow_RenderMode_VisibleLighting(false, false);
4159 R_Shadow_DrawWorldLight(numsurfaces, surfacelist, lighttrispvs);
4160 for (i = 0;i < numlightentities;i++)
4161 R_Shadow_DrawEntityLight(lightentities[i]);
4162 for (i = 0;i < numlightentities_noselfshadow;i++)
4163 R_Shadow_DrawEntityLight(lightentities[lightentities_noselfshadow - i]);
4166 castshadows = numsurfaces + numshadowentities + numshadowentities_noselfshadow > 0 && rtlight->shadow && (rtlight->isstatic ? r_refdef.scene.rtworldshadows : r_refdef.scene.rtdlightshadows);
4168 nearestpoint[0] = bound(rtlight->cullmins[0], r_refdef.view.origin[0], rtlight->cullmaxs[0]);
4169 nearestpoint[1] = bound(rtlight->cullmins[1], r_refdef.view.origin[1], rtlight->cullmaxs[1]);
4170 nearestpoint[2] = bound(rtlight->cullmins[2], r_refdef.view.origin[2], rtlight->cullmaxs[2]);
4171 distance = VectorDistance(nearestpoint, r_refdef.view.origin);
4173 lodlinear = (rtlight->radius * r_shadow_shadowmapping_precision.value) / sqrt(max(1.0f, distance/rtlight->radius));
4174 //lodlinear = (int)(r_shadow_shadowmapping_lod_bias.value + r_shadow_shadowmapping_lod_scale.value * rtlight->radius / max(1.0f, distance));
4175 lodlinear = bound(r_shadow_shadowmapping_minsize.integer, lodlinear, r_shadow_shadowmapmaxsize);
4177 if (castshadows && (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAP2D || r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE || r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE))
4183 int receivermask = 0;
4184 matrix4x4_t radiustolight = rtlight->matrix_worldtolight;
4185 Matrix4x4_Abs(&radiustolight);
4187 r_shadow_shadowmaplod = 0;
4188 for (i = 1;i < R_SHADOW_SHADOWMAP_NUMCUBEMAPS;i++)
4189 if ((r_shadow_shadowmapmaxsize >> i) > lodlinear)
4190 r_shadow_shadowmaplod = i;
4192 if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE)
4193 size = max(1, r_shadow_shadowmapmaxsize >> r_shadow_shadowmaplod);
4195 size = bound(r_shadow_shadowmapborder, lodlinear, r_shadow_shadowmapmaxsize);
4197 borderbias = r_shadow_shadowmapborder / (float)(size - r_shadow_shadowmapborder);
4201 if (rtlight->compiled && r_shadow_realtime_world_compile.integer && r_shadow_realtime_world_compileshadow.integer)
4203 castermask = rtlight->static_shadowmap_casters;
4204 receivermask = rtlight->static_shadowmap_receivers;
4208 for(i = 0;i < numsurfaces;i++)
4210 msurface_t *surface = r_refdef.scene.worldmodel->data_surfaces + surfacelist[i];
4211 surfacesides[i] = R_Shadow_CalcBBoxSideMask(surface->mins, surface->maxs, &rtlight->matrix_worldtolight, &radiustolight, borderbias);
4212 castermask |= surfacesides[i];
4213 receivermask |= surfacesides[i];
4217 if (receivermask < 0x3F)
4219 for (i = 0;i < numlightentities;i++)
4220 receivermask |= R_Shadow_CalcEntitySideMask(lightentities[i], &rtlight->matrix_worldtolight, &radiustolight, borderbias);
4221 if (receivermask < 0x3F)
4222 for(i = 0; i < numlightentities_noselfshadow;i++)
4223 receivermask |= R_Shadow_CalcEntitySideMask(lightentities[lightentities_noselfshadow - i], &rtlight->matrix_worldtolight, &radiustolight, borderbias);
4226 receivermask &= R_Shadow_CullFrustumSides(rtlight, size, r_shadow_shadowmapborder);
4230 for (i = 0;i < numshadowentities;i++)
4231 castermask |= (entitysides[i] = R_Shadow_CalcEntitySideMask(shadowentities[i], &rtlight->matrix_worldtolight, &radiustolight, borderbias));
4232 for (i = 0;i < numshadowentities_noselfshadow;i++)
4233 castermask |= (entitysides[shadowentities_noselfshadow - i] = R_Shadow_CalcEntitySideMask(shadowentities[shadowentities_noselfshadow - i], &rtlight->matrix_worldtolight, &radiustolight, borderbias));
4236 //Con_Printf("distance %f lodlinear %i (lod %i) size %i\n", distance, lodlinear, r_shadow_shadowmaplod, size);
4238 // render shadow casters into 6 sided depth texture
4239 for (side = 0;side < 6;side++) if (receivermask & (1 << side))
4241 R_Shadow_RenderMode_ShadowMap(side, true, size);
4242 if (! (castermask & (1 << side))) continue;
4244 R_Shadow_DrawWorldShadow_ShadowMap(numsurfaces, surfacelist, shadowtrispvs, surfacesides);
4245 for (i = 0;i < numshadowentities;i++) if (entitysides[i] & (1 << side))
4246 R_Shadow_DrawEntityShadow(shadowentities[i]);
4249 if (numlightentities_noselfshadow)
4251 // render lighting using the depth texture as shadowmap
4252 // draw lighting in the unmasked areas
4253 R_Shadow_RenderMode_Lighting(false, false, true);
4254 for (i = 0;i < numlightentities_noselfshadow;i++)
4255 R_Shadow_DrawEntityLight(lightentities[lightentities_noselfshadow - i]);
4258 // render shadow casters into 6 sided depth texture
4259 if (numshadowentities_noselfshadow)
4261 for (side = 0;side < 6;side++) if ((receivermask & castermask) & (1 << side))
4263 R_Shadow_RenderMode_ShadowMap(side, false, size);
4264 for (i = 0;i < numshadowentities_noselfshadow;i++) if (entitysides[shadowentities_noselfshadow - i] & (1 << side))
4265 R_Shadow_DrawEntityShadow(shadowentities[shadowentities_noselfshadow - i]);
4269 // render lighting using the depth texture as shadowmap
4270 // draw lighting in the unmasked areas
4271 R_Shadow_RenderMode_Lighting(false, false, true);
4272 // draw lighting in the unmasked areas
4274 R_Shadow_DrawWorldLight(numsurfaces, surfacelist, lighttrispvs);
4275 for (i = 0;i < numlightentities;i++)
4276 R_Shadow_DrawEntityLight(lightentities[i]);
4278 else if (castshadows && gl_stencil)
4280 // draw stencil shadow volumes to mask off pixels that are in shadow
4281 // so that they won't receive lighting
4282 GL_Scissor(r_shadow_lightscissor[0], r_shadow_lightscissor[1], r_shadow_lightscissor[2], r_shadow_lightscissor[3]);
4283 R_Shadow_ClearStencil();
4285 R_Shadow_DrawWorldShadow_ShadowVolume(numsurfaces, surfacelist, shadowtrispvs);
4286 for (i = 0;i < numshadowentities;i++)
4287 R_Shadow_DrawEntityShadow(shadowentities[i]);
4288 if (numlightentities_noselfshadow)
4290 // draw lighting in the unmasked areas
4291 R_Shadow_RenderMode_Lighting(true, false, false);
4292 for (i = 0;i < numlightentities_noselfshadow;i++)
4293 R_Shadow_DrawEntityLight(lightentities[lightentities_noselfshadow - i]);
4295 // optionally draw the illuminated areas
4296 // for performance analysis by level designers
4297 if (r_showlighting.integer && r_refdef.view.showdebug)
4299 R_Shadow_RenderMode_VisibleLighting(!r_showdisabledepthtest.integer, false);
4300 for (i = 0;i < numlightentities_noselfshadow;i++)
4301 R_Shadow_DrawEntityLight(lightentities[lightentities_noselfshadow - i]);
4304 for (i = 0;i < numshadowentities_noselfshadow;i++)
4305 R_Shadow_DrawEntityShadow(shadowentities[shadowentities_noselfshadow - i]);
4307 if (numsurfaces + numlightentities)
4309 // draw lighting in the unmasked areas
4310 R_Shadow_RenderMode_Lighting(true, false, false);
4312 R_Shadow_DrawWorldLight(numsurfaces, surfacelist, lighttrispvs);
4313 for (i = 0;i < numlightentities;i++)
4314 R_Shadow_DrawEntityLight(lightentities[i]);
4319 if (numsurfaces + numlightentities)
4321 // draw lighting in the unmasked areas
4322 R_Shadow_RenderMode_Lighting(false, false, false);
4324 R_Shadow_DrawWorldLight(numsurfaces, surfacelist, lighttrispvs);
4325 for (i = 0;i < numlightentities;i++)
4326 R_Shadow_DrawEntityLight(lightentities[i]);
4327 for (i = 0;i < numlightentities_noselfshadow;i++)
4328 R_Shadow_DrawEntityLight(lightentities[lightentities_noselfshadow - i]);
4333 void R_Shadow_DrawLightSprites(void);
4334 void R_ShadowVolumeLighting(qboolean visible)
4342 if (r_shadow_shadowmapmaxsize != bound(1, r_shadow_shadowmapping_maxsize.integer, gl_max_size.integer / 4) ||
4343 (r_shadow_shadowmode != R_SHADOW_SHADOWMODE_STENCIL) != (r_shadow_shadowmapping.integer && r_glsl.integer && gl_support_fragment_shader && gl_support_ext_framebuffer_object) ||
4344 r_shadow_shadowmapvsdct != (r_shadow_shadowmapping_vsdct.integer != 0) ||
4345 r_shadow_shadowmaptexturetype != r_shadow_shadowmapping_texturetype.integer ||
4346 r_shadow_shadowmapfilterquality != r_shadow_shadowmapping_filterquality.integer ||
4347 r_shadow_shadowmapdepthbits != r_shadow_shadowmapping_depthbits.integer ||
4348 r_shadow_shadowmapborder != bound(0, r_shadow_shadowmapping_bordersize.integer, 16))
4349 R_Shadow_FreeShadowMaps();
4351 if (r_editlights.integer)
4352 R_Shadow_DrawLightSprites();
4354 R_Shadow_RenderMode_Begin();
4356 flag = r_refdef.scene.rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE;
4357 if (r_shadow_debuglight.integer >= 0)
4359 lightindex = r_shadow_debuglight.integer;
4360 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
4361 if (light && (light->flags & flag))
4362 R_DrawRTLight(&light->rtlight, visible);
4366 range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
4367 for (lightindex = 0;lightindex < range;lightindex++)
4369 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
4370 if (light && (light->flags & flag))
4371 R_DrawRTLight(&light->rtlight, visible);
4374 if (r_refdef.scene.rtdlight)
4375 for (lnum = 0;lnum < r_refdef.scene.numlights;lnum++)
4376 R_DrawRTLight(r_refdef.scene.lights[lnum], visible);
4378 R_Shadow_RenderMode_End();
4381 extern const float r_screenvertex3f[12];
4382 extern void R_SetupView(qboolean allowwaterclippingplane);
4383 extern void R_ResetViewRendering3D(void);
4384 extern void R_ResetViewRendering2D(void);
4385 extern cvar_t r_shadows;
4386 extern cvar_t r_shadows_darken;
4387 extern cvar_t r_shadows_drawafterrtlighting;
4388 extern cvar_t r_shadows_castfrombmodels;
4389 extern cvar_t r_shadows_throwdistance;
4390 extern cvar_t r_shadows_throwdirection;
4391 void R_DrawModelShadows(void)
4394 float relativethrowdistance;
4395 entity_render_t *ent;
4396 vec3_t relativelightorigin;
4397 vec3_t relativelightdirection;
4398 vec3_t relativeshadowmins, relativeshadowmaxs;
4399 vec3_t tmp, shadowdir;
4401 if (!r_drawentities.integer || !gl_stencil)
4405 R_ResetViewRendering3D();
4406 //GL_Scissor(r_refdef.view.viewport.x, r_refdef.view.viewport.y, r_refdef.view.viewport.width, r_refdef.view.viewport.height);
4407 //GL_Scissor(r_refdef.view.x, vid.height - r_refdef.view.height - r_refdef.view.y, r_refdef.view.width, r_refdef.view.height);
4408 R_Shadow_RenderMode_Begin();
4409 R_Shadow_RenderMode_ActiveLight(NULL);
4410 r_shadow_lightscissor[0] = r_refdef.view.x;
4411 r_shadow_lightscissor[1] = vid.height - r_refdef.view.y - r_refdef.view.height;
4412 r_shadow_lightscissor[2] = r_refdef.view.width;
4413 r_shadow_lightscissor[3] = r_refdef.view.height;
4414 R_Shadow_RenderMode_StencilShadowVolumes(false);
4417 if (r_shadows.integer == 2)
4419 Math_atov(r_shadows_throwdirection.string, shadowdir);
4420 VectorNormalize(shadowdir);
4423 R_Shadow_ClearStencil();
4425 for (i = 0;i < r_refdef.scene.numentities;i++)
4427 ent = r_refdef.scene.entities[i];
4429 // cast shadows from anything of the map (submodels are optional)
4430 if (ent->model && ent->model->DrawShadowVolume != NULL && (!ent->model->brush.submodel || r_shadows_castfrombmodels.integer) && (ent->flags & RENDER_SHADOW))
4432 relativethrowdistance = r_shadows_throwdistance.value * Matrix4x4_ScaleFromMatrix(&ent->inversematrix);
4433 VectorSet(relativeshadowmins, -relativethrowdistance, -relativethrowdistance, -relativethrowdistance);
4434 VectorSet(relativeshadowmaxs, relativethrowdistance, relativethrowdistance, relativethrowdistance);
4435 if (r_shadows.integer == 2) // 2: simpler mode, throw shadows always in same direction
4436 Matrix4x4_Transform3x3(&ent->inversematrix, shadowdir, relativelightdirection);
4439 if(ent->entitynumber != 0)
4441 // networked entity - might be attached in some way (then we should use the parent's light direction, to not tear apart attached entities)
4442 int entnum, entnum2, recursion;
4443 entnum = entnum2 = ent->entitynumber;
4444 for(recursion = 32; recursion > 0; --recursion)
4446 entnum2 = cl.entities[entnum].state_current.tagentity;
4447 if(entnum2 >= 1 && entnum2 < cl.num_entities && cl.entities_active[entnum2])
4452 if(recursion && recursion != 32) // if we followed a valid non-empty attachment chain
4454 VectorNegate(cl.entities[entnum].render.modellight_lightdir, relativelightdirection);
4455 // transform into modelspace of OUR entity
4456 Matrix4x4_Transform3x3(&cl.entities[entnum].render.matrix, relativelightdirection, tmp);
4457 Matrix4x4_Transform3x3(&ent->inversematrix, tmp, relativelightdirection);
4460 VectorNegate(ent->modellight_lightdir, relativelightdirection);
4463 VectorNegate(ent->modellight_lightdir, relativelightdirection);
4466 VectorScale(relativelightdirection, -relativethrowdistance, relativelightorigin);
4467 RSurf_ActiveModelEntity(ent, false, false);
4468 ent->model->DrawShadowVolume(ent, relativelightorigin, relativelightdirection, relativethrowdistance, ent->model->nummodelsurfaces, ent->model->sortedmodelsurfaces, relativeshadowmins, relativeshadowmaxs);
4469 rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
4473 // not really the right mode, but this will disable any silly stencil features
4474 R_Shadow_RenderMode_End();
4476 // set up ortho view for rendering this pass
4477 //GL_Scissor(r_refdef.view.x, vid.height - r_refdef.view.height - r_refdef.view.y, r_refdef.view.width, r_refdef.view.height);
4478 //GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
4479 //GL_ScissorTest(true);
4480 //R_Mesh_Matrix(&identitymatrix);
4481 //R_Mesh_ResetTextureState();
4482 R_ResetViewRendering2D();
4483 R_Mesh_VertexPointer(r_screenvertex3f, 0, 0);
4484 R_Mesh_ColorPointer(NULL, 0, 0);
4485 R_SetupGenericShader(false);
4487 // set up a darkening blend on shadowed areas
4488 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
4489 //GL_DepthRange(0, 1);
4490 //GL_DepthTest(false);
4491 //GL_DepthMask(false);
4492 //GL_PolygonOffset(0, 0);CHECKGLERROR
4493 GL_Color(0, 0, 0, r_shadows_darken.value);
4494 //GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
4495 //qglDepthFunc(GL_ALWAYS);CHECKGLERROR
4496 qglEnable(GL_STENCIL_TEST);CHECKGLERROR
4497 qglStencilMask(~0);CHECKGLERROR
4498 qglStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);CHECKGLERROR
4499 qglStencilFunc(GL_NOTEQUAL, 128, ~0);CHECKGLERROR
4501 // apply the blend to the shadowed areas
4502 R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
4504 // restore the viewport
4505 R_SetViewport(&r_refdef.view.viewport);
4507 // restore other state to normal
4508 //R_Shadow_RenderMode_End();
4511 void R_BeginCoronaQuery(rtlight_t *rtlight, float scale, qboolean usequery)
4514 vec3_t centerorigin;
4515 // if it's too close, skip it
4516 if (VectorLength(rtlight->currentcolor) < (1.0f / 256.0f))
4518 zdist = (DotProduct(rtlight->shadoworigin, r_refdef.view.forward) - DotProduct(r_refdef.view.origin, r_refdef.view.forward));
4521 if (usequery && r_numqueries + 2 <= r_maxqueries)
4523 rtlight->corona_queryindex_allpixels = r_queries[r_numqueries++];
4524 rtlight->corona_queryindex_visiblepixels = r_queries[r_numqueries++];
4525 VectorMA(r_refdef.view.origin, zdist, r_refdef.view.forward, centerorigin);
4528 // NOTE: we can't disable depth testing using R_DrawSprite's depthdisable argument, which calls GL_DepthTest, as that's broken in the ATI drivers
4529 qglBeginQueryARB(GL_SAMPLES_PASSED_ARB, rtlight->corona_queryindex_allpixels);
4530 qglDepthFunc(GL_ALWAYS);
4531 R_DrawSprite(GL_ONE, GL_ZERO, r_shadow_lightcorona, NULL, false, false, centerorigin, r_refdef.view.right, r_refdef.view.up, scale, -scale, -scale, scale, 1, 1, 1, 1);
4532 qglEndQueryARB(GL_SAMPLES_PASSED_ARB);
4533 qglDepthFunc(GL_LEQUAL);
4534 qglBeginQueryARB(GL_SAMPLES_PASSED_ARB, rtlight->corona_queryindex_visiblepixels);
4535 R_DrawSprite(GL_ONE, GL_ZERO, r_shadow_lightcorona, NULL, false, false, rtlight->shadoworigin, r_refdef.view.right, r_refdef.view.up, scale, -scale, -scale, scale, 1, 1, 1, 1);
4536 qglEndQueryARB(GL_SAMPLES_PASSED_ARB);
4539 rtlight->corona_visibility = bound(0, (zdist - 32) / 32, 1);
4542 void R_DrawCorona(rtlight_t *rtlight, float cscale, float scale)
4545 GLint allpixels = 0, visiblepixels = 0;
4546 // now we have to check the query result
4547 if (rtlight->corona_queryindex_visiblepixels)
4550 qglGetQueryObjectivARB(rtlight->corona_queryindex_visiblepixels, GL_QUERY_RESULT_ARB, &visiblepixels);
4551 qglGetQueryObjectivARB(rtlight->corona_queryindex_allpixels, GL_QUERY_RESULT_ARB, &allpixels);
4553 //Con_Printf("%i of %i pixels\n", (int)visiblepixels, (int)allpixels);
4554 if (visiblepixels < 1 || allpixels < 1)
4556 rtlight->corona_visibility *= bound(0, (float)visiblepixels / (float)allpixels, 1);
4557 cscale *= rtlight->corona_visibility;
4561 // FIXME: these traces should scan all render entities instead of cl.world
4562 if (CL_TraceLine(r_refdef.view.origin, rtlight->shadoworigin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction < 1)
4565 VectorScale(rtlight->currentcolor, cscale, color);
4566 if (VectorLength(color) > (1.0f / 256.0f))
4567 R_DrawSprite(GL_ONE, GL_ONE, r_shadow_lightcorona, NULL, true, false, rtlight->shadoworigin, r_refdef.view.right, r_refdef.view.up, scale, -scale, -scale, scale, color[0], color[1], color[2], 1);
4570 void R_DrawCoronas(void)
4578 if (r_coronas.value < (1.0f / 256.0f) && !gl_flashblend.integer)
4580 if (r_waterstate.renderingscene)
4582 flag = r_refdef.scene.rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE;
4583 R_Mesh_Matrix(&identitymatrix);
4585 range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
4587 // check occlusion of coronas
4588 // use GL_ARB_occlusion_query if available
4589 // otherwise use raytraces
4591 usequery = gl_support_arb_occlusion_query && r_coronas_occlusionquery.integer;
4594 GL_ColorMask(0,0,0,0);
4595 if (r_maxqueries < (range + r_refdef.scene.numlights) * 2)
4596 if (r_maxqueries < R_MAX_OCCLUSION_QUERIES)
4599 r_maxqueries = (range + r_refdef.scene.numlights) * 4;
4600 r_maxqueries = min(r_maxqueries, R_MAX_OCCLUSION_QUERIES);
4602 qglGenQueriesARB(r_maxqueries - i, r_queries + i);
4606 for (lightindex = 0;lightindex < range;lightindex++)
4608 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
4611 rtlight = &light->rtlight;
4612 rtlight->corona_visibility = 0;
4613 rtlight->corona_queryindex_visiblepixels = 0;
4614 rtlight->corona_queryindex_allpixels = 0;
4615 if (!(rtlight->flags & flag))
4617 if (rtlight->corona <= 0)
4619 if (r_shadow_debuglight.integer >= 0 && r_shadow_debuglight.integer != (int)lightindex)
4621 R_BeginCoronaQuery(rtlight, rtlight->radius * rtlight->coronasizescale * r_coronas_occlusionsizescale.value, usequery);
4623 for (i = 0;i < r_refdef.scene.numlights;i++)
4625 rtlight = r_refdef.scene.lights[i];
4626 rtlight->corona_visibility = 0;
4627 rtlight->corona_queryindex_visiblepixels = 0;
4628 rtlight->corona_queryindex_allpixels = 0;
4629 if (!(rtlight->flags & flag))
4631 if (rtlight->corona <= 0)
4633 R_BeginCoronaQuery(rtlight, rtlight->radius * rtlight->coronasizescale * r_coronas_occlusionsizescale.value, usequery);
4636 GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
4638 // now draw the coronas using the query data for intensity info
4639 for (lightindex = 0;lightindex < range;lightindex++)
4641 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
4644 rtlight = &light->rtlight;
4645 if (rtlight->corona_visibility <= 0)
4647 R_DrawCorona(rtlight, rtlight->corona * r_coronas.value * 0.25f, rtlight->radius * rtlight->coronasizescale);
4649 for (i = 0;i < r_refdef.scene.numlights;i++)
4651 rtlight = r_refdef.scene.lights[i];
4652 if (rtlight->corona_visibility <= 0)
4654 if (gl_flashblend.integer)
4655 R_DrawCorona(rtlight, rtlight->corona, rtlight->radius * rtlight->coronasizescale * 2.0f);
4657 R_DrawCorona(rtlight, rtlight->corona * r_coronas.value * 0.25f, rtlight->radius * rtlight->coronasizescale);
4663 //static char *suffix[6] = {"ft", "bk", "rt", "lf", "up", "dn"};
4664 typedef struct suffixinfo_s
4667 qboolean flipx, flipy, flipdiagonal;
4670 static suffixinfo_t suffix[3][6] =
4673 {"px", false, false, false},
4674 {"nx", false, false, false},
4675 {"py", false, false, false},
4676 {"ny", false, false, false},
4677 {"pz", false, false, false},
4678 {"nz", false, false, false}
4681 {"posx", false, false, false},
4682 {"negx", false, false, false},
4683 {"posy", false, false, false},
4684 {"negy", false, false, false},
4685 {"posz", false, false, false},
4686 {"negz", false, false, false}
4689 {"rt", true, false, true},
4690 {"lf", false, true, true},
4691 {"ft", true, true, false},
4692 {"bk", false, false, false},
4693 {"up", true, false, true},
4694 {"dn", true, false, true}
4698 static int componentorder[4] = {0, 1, 2, 3};
4700 rtexture_t *R_Shadow_LoadCubemap(const char *basename)
4702 int i, j, cubemapsize;
4703 unsigned char *cubemappixels, *image_buffer;
4704 rtexture_t *cubemaptexture;
4706 // must start 0 so the first loadimagepixels has no requested width/height
4708 cubemappixels = NULL;
4709 cubemaptexture = NULL;
4710 // keep trying different suffix groups (posx, px, rt) until one loads
4711 for (j = 0;j < 3 && !cubemappixels;j++)
4713 // load the 6 images in the suffix group
4714 for (i = 0;i < 6;i++)
4716 // generate an image name based on the base and and suffix
4717 dpsnprintf(name, sizeof(name), "%s%s", basename, suffix[j][i].suffix);
4719 if ((image_buffer = loadimagepixelsbgra(name, false, false)))
4721 // an image loaded, make sure width and height are equal
4722 if (image_width == image_height && (!cubemappixels || image_width == cubemapsize))
4724 // if this is the first image to load successfully, allocate the cubemap memory
4725 if (!cubemappixels && image_width >= 1)
4727 cubemapsize = image_width;
4728 // note this clears to black, so unavailable sides are black
4729 cubemappixels = (unsigned char *)Mem_Alloc(tempmempool, 6*cubemapsize*cubemapsize*4);
4731 // copy the image with any flipping needed by the suffix (px and posx types don't need flipping)
4733 Image_CopyMux(cubemappixels+i*cubemapsize*cubemapsize*4, image_buffer, cubemapsize, cubemapsize, suffix[j][i].flipx, suffix[j][i].flipy, suffix[j][i].flipdiagonal, 4, 4, componentorder);
4736 Con_Printf("Cubemap image \"%s\" (%ix%i) is not square, OpenGL requires square cubemaps.\n", name, image_width, image_height);
4738 Mem_Free(image_buffer);
4742 // if a cubemap loaded, upload it
4745 if (developer_loading.integer)
4746 Con_Printf("loading cubemap \"%s\"\n", basename);
4748 if (!r_shadow_filters_texturepool)
4749 r_shadow_filters_texturepool = R_AllocTexturePool();
4750 cubemaptexture = R_LoadTextureCubeMap(r_shadow_filters_texturepool, basename, cubemapsize, cubemappixels, TEXTYPE_BGRA, TEXF_PRECACHE | (gl_texturecompression_lightcubemaps.integer ? TEXF_COMPRESS : 0) | TEXF_FORCELINEAR, NULL);
4751 Mem_Free(cubemappixels);
4755 Con_DPrintf("failed to load cubemap \"%s\"\n", basename);
4756 if (developer_loading.integer)
4758 Con_Printf("(tried tried images ");
4759 for (j = 0;j < 3;j++)
4760 for (i = 0;i < 6;i++)
4761 Con_Printf("%s\"%s%s.tga\"", j + i > 0 ? ", " : "", basename, suffix[j][i].suffix);
4762 Con_Print(" and was unable to find any of them).\n");
4765 return cubemaptexture;
4768 rtexture_t *R_Shadow_Cubemap(const char *basename)
4771 for (i = 0;i < numcubemaps;i++)
4772 if (!strcasecmp(cubemaps[i].basename, basename))
4773 return cubemaps[i].texture ? cubemaps[i].texture : r_texture_whitecube;
4774 if (i >= MAX_CUBEMAPS)
4775 return r_texture_whitecube;
4777 strlcpy(cubemaps[i].basename, basename, sizeof(cubemaps[i].basename));
4778 cubemaps[i].texture = R_Shadow_LoadCubemap(cubemaps[i].basename);
4779 return cubemaps[i].texture;
4782 void R_Shadow_FreeCubemaps(void)
4785 for (i = 0;i < numcubemaps;i++)
4787 if (developer_loading.integer)
4788 Con_Printf("unloading cubemap \"%s\"\n", cubemaps[i].basename);
4789 if (cubemaps[i].texture)
4790 R_FreeTexture(cubemaps[i].texture);
4794 R_FreeTexturePool(&r_shadow_filters_texturepool);
4797 dlight_t *R_Shadow_NewWorldLight(void)
4799 return (dlight_t *)Mem_ExpandableArray_AllocRecord(&r_shadow_worldlightsarray);
4802 void R_Shadow_UpdateWorldLight(dlight_t *light, vec3_t origin, vec3_t angles, vec3_t color, vec_t radius, vec_t corona, int style, int shadowenable, const char *cubemapname, vec_t coronasizescale, vec_t ambientscale, vec_t diffusescale, vec_t specularscale, int flags)
4805 // validate parameters
4806 if (style < 0 || style >= MAX_LIGHTSTYLES)
4808 Con_Printf("R_Shadow_NewWorldLight: invalid light style number %i, must be >= 0 and < %i\n", light->style, MAX_LIGHTSTYLES);
4814 // copy to light properties
4815 VectorCopy(origin, light->origin);
4816 light->angles[0] = angles[0] - 360 * floor(angles[0] / 360);
4817 light->angles[1] = angles[1] - 360 * floor(angles[1] / 360);
4818 light->angles[2] = angles[2] - 360 * floor(angles[2] / 360);
4819 light->color[0] = max(color[0], 0);
4820 light->color[1] = max(color[1], 0);
4821 light->color[2] = max(color[2], 0);
4822 light->radius = max(radius, 0);
4823 light->style = style;
4824 light->shadow = shadowenable;
4825 light->corona = corona;
4826 strlcpy(light->cubemapname, cubemapname, sizeof(light->cubemapname));
4827 light->coronasizescale = coronasizescale;
4828 light->ambientscale = ambientscale;
4829 light->diffusescale = diffusescale;
4830 light->specularscale = specularscale;
4831 light->flags = flags;
4833 // update renderable light data
4834 Matrix4x4_CreateFromQuakeEntity(&matrix, light->origin[0], light->origin[1], light->origin[2], light->angles[0], light->angles[1], light->angles[2], light->radius);
4835 R_RTLight_Update(&light->rtlight, true, &matrix, light->color, light->style, light->cubemapname[0] ? light->cubemapname : NULL, light->shadow, light->corona, light->coronasizescale, light->ambientscale, light->diffusescale, light->specularscale, light->flags);
4838 void R_Shadow_FreeWorldLight(dlight_t *light)
4840 if (r_shadow_selectedlight == light)
4841 r_shadow_selectedlight = NULL;
4842 R_RTLight_Uncompile(&light->rtlight);
4843 Mem_ExpandableArray_FreeRecord(&r_shadow_worldlightsarray, light);
4846 void R_Shadow_ClearWorldLights(void)
4850 size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
4851 for (lightindex = 0;lightindex < range;lightindex++)
4853 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
4855 R_Shadow_FreeWorldLight(light);
4857 r_shadow_selectedlight = NULL;
4858 R_Shadow_FreeCubemaps();
4861 void R_Shadow_SelectLight(dlight_t *light)
4863 if (r_shadow_selectedlight)
4864 r_shadow_selectedlight->selected = false;
4865 r_shadow_selectedlight = light;
4866 if (r_shadow_selectedlight)
4867 r_shadow_selectedlight->selected = true;
4870 void R_Shadow_DrawCursor_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
4872 // this is never batched (there can be only one)
4873 R_DrawSprite(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, r_editlights_sprcursor->tex, r_editlights_sprcursor->tex, false, false, r_editlights_cursorlocation, r_refdef.view.right, r_refdef.view.up, EDLIGHTSPRSIZE, -EDLIGHTSPRSIZE, -EDLIGHTSPRSIZE, EDLIGHTSPRSIZE, 1, 1, 1, 1);
4876 void R_Shadow_DrawLightSprite_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
4883 // this is never batched (due to the ent parameter changing every time)
4884 // so numsurfaces == 1 and surfacelist[0] == lightnumber
4885 const dlight_t *light = (dlight_t *)ent;
4888 VectorScale(light->color, intensity, spritecolor);
4889 if (VectorLength(spritecolor) < 0.1732f)
4890 VectorSet(spritecolor, 0.1f, 0.1f, 0.1f);
4891 if (VectorLength(spritecolor) > 1.0f)
4892 VectorNormalize(spritecolor);
4894 // draw light sprite
4895 if (light->cubemapname[0] && !light->shadow)
4896 pic = r_editlights_sprcubemapnoshadowlight;
4897 else if (light->cubemapname[0])
4898 pic = r_editlights_sprcubemaplight;
4899 else if (!light->shadow)
4900 pic = r_editlights_sprnoshadowlight;
4902 pic = r_editlights_sprlight;
4903 R_DrawSprite(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, pic->tex, pic->tex, false, false, light->origin, r_refdef.view.right, r_refdef.view.up, s, -s, -s, s, spritecolor[0], spritecolor[1], spritecolor[2], 1);
4904 // draw selection sprite if light is selected
4905 if (light->selected)
4906 R_DrawSprite(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, r_editlights_sprselection->tex, r_editlights_sprselection->tex, false, false, light->origin, r_refdef.view.right, r_refdef.view.up, s, -s, -s, s, 1, 1, 1, 1);
4907 // VorteX todo: add normalmode/realtime mode light overlay sprites?
4910 void R_Shadow_DrawLightSprites(void)
4914 size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
4915 for (lightindex = 0;lightindex < range;lightindex++)
4917 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
4919 R_MeshQueue_AddTransparent(light->origin, R_Shadow_DrawLightSprite_TransparentCallback, (entity_render_t *)light, 5, &light->rtlight);
4921 R_MeshQueue_AddTransparent(r_editlights_cursorlocation, R_Shadow_DrawCursor_TransparentCallback, NULL, 0, NULL);
4924 void R_Shadow_SelectLightInView(void)
4926 float bestrating, rating, temp[3];
4930 size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
4933 for (lightindex = 0;lightindex < range;lightindex++)
4935 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
4938 VectorSubtract(light->origin, r_refdef.view.origin, temp);
4939 rating = (DotProduct(temp, r_refdef.view.forward) / sqrt(DotProduct(temp, temp)));
4942 rating /= (1 + 0.0625f * sqrt(DotProduct(temp, temp)));
4943 if (bestrating < rating && CL_TraceLine(light->origin, r_refdef.view.origin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction == 1.0f)
4945 bestrating = rating;
4950 R_Shadow_SelectLight(best);
4953 void R_Shadow_LoadWorldLights(void)
4955 int n, a, style, shadow, flags;
4956 char tempchar, *lightsstring, *s, *t, name[MAX_QPATH], cubemapname[MAX_QPATH];
4957 float origin[3], radius, color[3], angles[3], corona, coronasizescale, ambientscale, diffusescale, specularscale;
4958 if (cl.worldmodel == NULL)
4960 Con_Print("No map loaded.\n");
4963 FS_StripExtension (cl.worldmodel->name, name, sizeof (name));
4964 strlcat (name, ".rtlights", sizeof (name));
4965 lightsstring = (char *)FS_LoadFile(name, tempmempool, false, NULL);
4975 for (;COM_Parse(t, true) && strcmp(
4976 if (COM_Parse(t, true))
4978 if (com_token[0] == '!')
4981 origin[0] = atof(com_token+1);
4984 origin[0] = atof(com_token);
4989 while (*s && *s != '\n' && *s != '\r')
4995 // check for modifier flags
5002 #if _MSC_VER >= 1400
5003 #define sscanf sscanf_s
5005 cubemapname[sizeof(cubemapname)-1] = 0;
5006 #if MAX_QPATH != 128
5007 #error update this code if MAX_QPATH changes
5009 a = sscanf(t, "%f %f %f %f %f %f %f %d %127s %f %f %f %f %f %f %f %f %i", &origin[0], &origin[1], &origin[2], &radius, &color[0], &color[1], &color[2], &style, cubemapname
5010 #if _MSC_VER >= 1400
5011 , sizeof(cubemapname)
5013 , &corona, &angles[0], &angles[1], &angles[2], &coronasizescale, &ambientscale, &diffusescale, &specularscale, &flags);
5016 flags = LIGHTFLAG_REALTIMEMODE;
5024 coronasizescale = 0.25f;
5026 VectorClear(angles);
5029 if (a < 9 || !strcmp(cubemapname, "\"\""))
5031 // remove quotes on cubemapname
5032 if (cubemapname[0] == '"' && cubemapname[strlen(cubemapname) - 1] == '"')
5035 namelen = strlen(cubemapname) - 2;
5036 memmove(cubemapname, cubemapname + 1, namelen);
5037 cubemapname[namelen] = '\0';
5041 Con_Printf("found %d parameters on line %i, should be 8 or more parameters (origin[0] origin[1] origin[2] radius color[0] color[1] color[2] style \"cubemapname\" corona angles[0] angles[1] angles[2] coronasizescale ambientscale diffusescale specularscale flags)\n", a, n + 1);
5044 R_Shadow_UpdateWorldLight(R_Shadow_NewWorldLight(), origin, angles, color, radius, corona, style, shadow, cubemapname, coronasizescale, ambientscale, diffusescale, specularscale, flags);
5052 Con_Printf("invalid rtlights file \"%s\"\n", name);
5053 Mem_Free(lightsstring);
5057 void R_Shadow_SaveWorldLights(void)
5061 size_t bufchars, bufmaxchars;
5063 char name[MAX_QPATH];
5064 char line[MAX_INPUTLINE];
5065 size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked, assuming the dpsnprintf mess doesn't screw it up...
5066 // I hate lines which are 3 times my screen size :( --blub
5069 if (cl.worldmodel == NULL)
5071 Con_Print("No map loaded.\n");
5074 FS_StripExtension (cl.worldmodel->name, name, sizeof (name));
5075 strlcat (name, ".rtlights", sizeof (name));
5076 bufchars = bufmaxchars = 0;
5078 for (lightindex = 0;lightindex < range;lightindex++)
5080 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
5083 if (light->coronasizescale != 0.25f || light->ambientscale != 0 || light->diffusescale != 1 || light->specularscale != 1 || light->flags != LIGHTFLAG_REALTIMEMODE)
5084 dpsnprintf(line, sizeof(line), "%s%f %f %f %f %f %f %f %d \"%s\" %f %f %f %f %f %f %f %f %i\n", light->shadow ? "" : "!", light->origin[0], light->origin[1], light->origin[2], light->radius, light->color[0], light->color[1], light->color[2], light->style, light->cubemapname, light->corona, light->angles[0], light->angles[1], light->angles[2], light->coronasizescale, light->ambientscale, light->diffusescale, light->specularscale, light->flags);
5085 else if (light->cubemapname[0] || light->corona || light->angles[0] || light->angles[1] || light->angles[2])
5086 dpsnprintf(line, sizeof(line), "%s%f %f %f %f %f %f %f %d \"%s\" %f %f %f %f\n", light->shadow ? "" : "!", light->origin[0], light->origin[1], light->origin[2], light->radius, light->color[0], light->color[1], light->color[2], light->style, light->cubemapname, light->corona, light->angles[0], light->angles[1], light->angles[2]);
5088 dpsnprintf(line, sizeof(line), "%s%f %f %f %f %f %f %f %d\n", light->shadow ? "" : "!", light->origin[0], light->origin[1], light->origin[2], light->radius, light->color[0], light->color[1], light->color[2], light->style);
5089 if (bufchars + strlen(line) > bufmaxchars)
5091 bufmaxchars = bufchars + strlen(line) + 2048;
5093 buf = (char *)Mem_Alloc(tempmempool, bufmaxchars);
5097 memcpy(buf, oldbuf, bufchars);
5103 memcpy(buf + bufchars, line, strlen(line));
5104 bufchars += strlen(line);
5108 FS_WriteFile(name, buf, (fs_offset_t)bufchars);
5113 void R_Shadow_LoadLightsFile(void)
5116 char tempchar, *lightsstring, *s, *t, name[MAX_QPATH];
5117 float origin[3], radius, color[3], subtract, spotdir[3], spotcone, falloff, distbias;
5118 if (cl.worldmodel == NULL)
5120 Con_Print("No map loaded.\n");
5123 FS_StripExtension (cl.worldmodel->name, name, sizeof (name));
5124 strlcat (name, ".lights", sizeof (name));
5125 lightsstring = (char *)FS_LoadFile(name, tempmempool, false, NULL);
5133 while (*s && *s != '\n' && *s != '\r')
5139 a = sscanf(t, "%f %f %f %f %f %f %f %f %f %f %f %f %f %d", &origin[0], &origin[1], &origin[2], &falloff, &color[0], &color[1], &color[2], &subtract, &spotdir[0], &spotdir[1], &spotdir[2], &spotcone, &distbias, &style);
5143 Con_Printf("invalid lights file, found %d parameters on line %i, should be 14 parameters (origin[0] origin[1] origin[2] falloff light[0] light[1] light[2] subtract spotdir[0] spotdir[1] spotdir[2] spotcone distancebias style)\n", a, n + 1);
5146 radius = sqrt(DotProduct(color, color) / (falloff * falloff * 8192.0f * 8192.0f));
5147 radius = bound(15, radius, 4096);
5148 VectorScale(color, (2.0f / (8388608.0f)), color);
5149 R_Shadow_UpdateWorldLight(R_Shadow_NewWorldLight(), origin, vec3_origin, color, radius, 0, style, true, NULL, 0.25, 0, 1, 1, LIGHTFLAG_REALTIMEMODE);
5157 Con_Printf("invalid lights file \"%s\"\n", name);
5158 Mem_Free(lightsstring);
5162 // tyrlite/hmap2 light types in the delay field
5163 typedef enum lighttype_e {LIGHTTYPE_MINUSX, LIGHTTYPE_RECIPX, LIGHTTYPE_RECIPXX, LIGHTTYPE_NONE, LIGHTTYPE_SUN, LIGHTTYPE_MINUSXX} lighttype_t;
5165 void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void)
5167 int entnum, style, islight, skin, pflags, effects, type, n;
5170 float origin[3], angles[3], radius, color[3], light[4], fadescale, lightscale, originhack[3], overridecolor[3], vec[4];
5171 char key[256], value[MAX_INPUTLINE];
5173 if (cl.worldmodel == NULL)
5175 Con_Print("No map loaded.\n");
5178 // try to load a .ent file first
5179 FS_StripExtension (cl.worldmodel->name, key, sizeof (key));
5180 strlcat (key, ".ent", sizeof (key));
5181 data = entfiledata = (char *)FS_LoadFile(key, tempmempool, true, NULL);
5182 // and if that is not found, fall back to the bsp file entity string
5184 data = cl.worldmodel->brush.entities;
5187 for (entnum = 0;COM_ParseToken_Simple(&data, false, false) && com_token[0] == '{';entnum++)
5189 type = LIGHTTYPE_MINUSX;
5190 origin[0] = origin[1] = origin[2] = 0;
5191 originhack[0] = originhack[1] = originhack[2] = 0;
5192 angles[0] = angles[1] = angles[2] = 0;
5193 color[0] = color[1] = color[2] = 1;
5194 light[0] = light[1] = light[2] = 1;light[3] = 300;
5195 overridecolor[0] = overridecolor[1] = overridecolor[2] = 1;
5205 if (!COM_ParseToken_Simple(&data, false, false))
5207 if (com_token[0] == '}')
5208 break; // end of entity
5209 if (com_token[0] == '_')
5210 strlcpy(key, com_token + 1, sizeof(key));
5212 strlcpy(key, com_token, sizeof(key));
5213 while (key[strlen(key)-1] == ' ') // remove trailing spaces
5214 key[strlen(key)-1] = 0;
5215 if (!COM_ParseToken_Simple(&data, false, false))
5217 strlcpy(value, com_token, sizeof(value));
5219 // now that we have the key pair worked out...
5220 if (!strcmp("light", key))
5222 n = sscanf(value, "%f %f %f %f", &vec[0], &vec[1], &vec[2], &vec[3]);
5226 light[0] = vec[0] * (1.0f / 256.0f);
5227 light[1] = vec[0] * (1.0f / 256.0f);
5228 light[2] = vec[0] * (1.0f / 256.0f);
5234 light[0] = vec[0] * (1.0f / 255.0f);
5235 light[1] = vec[1] * (1.0f / 255.0f);
5236 light[2] = vec[2] * (1.0f / 255.0f);
5240 else if (!strcmp("delay", key))
5242 else if (!strcmp("origin", key))
5243 sscanf(value, "%f %f %f", &origin[0], &origin[1], &origin[2]);
5244 else if (!strcmp("angle", key))
5245 angles[0] = 0, angles[1] = atof(value), angles[2] = 0;
5246 else if (!strcmp("angles", key))
5247 sscanf(value, "%f %f %f", &angles[0], &angles[1], &angles[2]);
5248 else if (!strcmp("color", key))
5249 sscanf(value, "%f %f %f", &color[0], &color[1], &color[2]);
5250 else if (!strcmp("wait", key))
5251 fadescale = atof(value);
5252 else if (!strcmp("classname", key))
5254 if (!strncmp(value, "light", 5))
5257 if (!strcmp(value, "light_fluoro"))
5262 overridecolor[0] = 1;
5263 overridecolor[1] = 1;
5264 overridecolor[2] = 1;
5266 if (!strcmp(value, "light_fluorospark"))
5271 overridecolor[0] = 1;
5272 overridecolor[1] = 1;
5273 overridecolor[2] = 1;
5275 if (!strcmp(value, "light_globe"))
5280 overridecolor[0] = 1;
5281 overridecolor[1] = 0.8;
5282 overridecolor[2] = 0.4;
5284 if (!strcmp(value, "light_flame_large_yellow"))
5289 overridecolor[0] = 1;
5290 overridecolor[1] = 0.5;
5291 overridecolor[2] = 0.1;
5293 if (!strcmp(value, "light_flame_small_yellow"))
5298 overridecolor[0] = 1;
5299 overridecolor[1] = 0.5;
5300 overridecolor[2] = 0.1;
5302 if (!strcmp(value, "light_torch_small_white"))
5307 overridecolor[0] = 1;
5308 overridecolor[1] = 0.5;
5309 overridecolor[2] = 0.1;
5311 if (!strcmp(value, "light_torch_small_walltorch"))
5316 overridecolor[0] = 1;
5317 overridecolor[1] = 0.5;
5318 overridecolor[2] = 0.1;
5322 else if (!strcmp("style", key))
5323 style = atoi(value);
5324 else if (!strcmp("skin", key))
5325 skin = (int)atof(value);
5326 else if (!strcmp("pflags", key))
5327 pflags = (int)atof(value);
5328 else if (!strcmp("effects", key))
5329 effects = (int)atof(value);
5330 else if (cl.worldmodel->type == mod_brushq3)
5332 if (!strcmp("scale", key))
5333 lightscale = atof(value);
5334 if (!strcmp("fade", key))
5335 fadescale = atof(value);
5340 if (lightscale <= 0)
5344 if (color[0] == color[1] && color[0] == color[2])
5346 color[0] *= overridecolor[0];
5347 color[1] *= overridecolor[1];
5348 color[2] *= overridecolor[2];
5350 radius = light[3] * r_editlights_quakelightsizescale.value * lightscale / fadescale;
5351 color[0] = color[0] * light[0];
5352 color[1] = color[1] * light[1];
5353 color[2] = color[2] * light[2];
5356 case LIGHTTYPE_MINUSX:
5358 case LIGHTTYPE_RECIPX:
5360 VectorScale(color, (1.0f / 16.0f), color);
5362 case LIGHTTYPE_RECIPXX:
5364 VectorScale(color, (1.0f / 16.0f), color);
5367 case LIGHTTYPE_NONE:
5371 case LIGHTTYPE_MINUSXX:
5374 VectorAdd(origin, originhack, origin);
5376 R_Shadow_UpdateWorldLight(R_Shadow_NewWorldLight(), origin, angles, color, radius, (pflags & PFLAGS_CORONA) != 0, style, (pflags & PFLAGS_NOSHADOW) == 0, skin >= 16 ? va("cubemaps/%i", skin) : NULL, 0.25, 0, 1, 1, LIGHTFLAG_REALTIMEMODE);
5379 Mem_Free(entfiledata);
5383 void R_Shadow_SetCursorLocationForView(void)
5386 vec3_t dest, endpos;
5388 VectorMA(r_refdef.view.origin, r_editlights_cursordistance.value, r_refdef.view.forward, dest);
5389 trace = CL_TraceLine(r_refdef.view.origin, dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false);
5390 if (trace.fraction < 1)
5392 dist = trace.fraction * r_editlights_cursordistance.value;
5393 push = r_editlights_cursorpushback.value;
5397 VectorMA(trace.endpos, push, r_refdef.view.forward, endpos);
5398 VectorMA(endpos, r_editlights_cursorpushoff.value, trace.plane.normal, endpos);
5402 VectorClear( endpos );
5404 r_editlights_cursorlocation[0] = floor(endpos[0] / r_editlights_cursorgrid.value + 0.5f) * r_editlights_cursorgrid.value;
5405 r_editlights_cursorlocation[1] = floor(endpos[1] / r_editlights_cursorgrid.value + 0.5f) * r_editlights_cursorgrid.value;
5406 r_editlights_cursorlocation[2] = floor(endpos[2] / r_editlights_cursorgrid.value + 0.5f) * r_editlights_cursorgrid.value;
5409 void R_Shadow_UpdateWorldLightSelection(void)
5411 if (r_editlights.integer)
5413 R_Shadow_SetCursorLocationForView();
5414 R_Shadow_SelectLightInView();
5417 R_Shadow_SelectLight(NULL);
5420 void R_Shadow_EditLights_Clear_f(void)
5422 R_Shadow_ClearWorldLights();
5425 void R_Shadow_EditLights_Reload_f(void)
5429 strlcpy(r_shadow_mapname, cl.worldmodel->name, sizeof(r_shadow_mapname));
5430 R_Shadow_ClearWorldLights();
5431 R_Shadow_LoadWorldLights();
5432 if (!Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray))
5434 R_Shadow_LoadLightsFile();
5435 if (!Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray))
5436 R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite();
5440 void R_Shadow_EditLights_Save_f(void)
5444 R_Shadow_SaveWorldLights();
5447 void R_Shadow_EditLights_ImportLightEntitiesFromMap_f(void)
5449 R_Shadow_ClearWorldLights();
5450 R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite();
5453 void R_Shadow_EditLights_ImportLightsFile_f(void)
5455 R_Shadow_ClearWorldLights();
5456 R_Shadow_LoadLightsFile();
5459 void R_Shadow_EditLights_Spawn_f(void)
5462 if (!r_editlights.integer)
5464 Con_Print("Cannot spawn light when not in editing mode. Set r_editlights to 1.\n");
5467 if (Cmd_Argc() != 1)
5469 Con_Print("r_editlights_spawn does not take parameters\n");
5472 color[0] = color[1] = color[2] = 1;
5473 R_Shadow_UpdateWorldLight(R_Shadow_NewWorldLight(), r_editlights_cursorlocation, vec3_origin, color, 200, 0, 0, true, NULL, 0.25, 0, 1, 1, LIGHTFLAG_REALTIMEMODE);
5476 void R_Shadow_EditLights_Edit_f(void)
5478 vec3_t origin, angles, color;
5479 vec_t radius, corona, coronasizescale, ambientscale, diffusescale, specularscale;
5480 int style, shadows, flags, normalmode, realtimemode;
5481 char cubemapname[MAX_INPUTLINE];
5482 if (!r_editlights.integer)
5484 Con_Print("Cannot spawn light when not in editing mode. Set r_editlights to 1.\n");
5487 if (!r_shadow_selectedlight)
5489 Con_Print("No selected light.\n");
5492 VectorCopy(r_shadow_selectedlight->origin, origin);
5493 VectorCopy(r_shadow_selectedlight->angles, angles);
5494 VectorCopy(r_shadow_selectedlight->color, color);
5495 radius = r_shadow_selectedlight->radius;
5496 style = r_shadow_selectedlight->style;
5497 if (r_shadow_selectedlight->cubemapname)
5498 strlcpy(cubemapname, r_shadow_selectedlight->cubemapname, sizeof(cubemapname));
5501 shadows = r_shadow_selectedlight->shadow;
5502 corona = r_shadow_selectedlight->corona;
5503 coronasizescale = r_shadow_selectedlight->coronasizescale;
5504 ambientscale = r_shadow_selectedlight->ambientscale;
5505 diffusescale = r_shadow_selectedlight->diffusescale;
5506 specularscale = r_shadow_selectedlight->specularscale;
5507 flags = r_shadow_selectedlight->flags;
5508 normalmode = (flags & LIGHTFLAG_NORMALMODE) != 0;
5509 realtimemode = (flags & LIGHTFLAG_REALTIMEMODE) != 0;
5510 if (!strcmp(Cmd_Argv(1), "origin"))
5512 if (Cmd_Argc() != 5)
5514 Con_Printf("usage: r_editlights_edit %s x y z\n", Cmd_Argv(1));
5517 origin[0] = atof(Cmd_Argv(2));
5518 origin[1] = atof(Cmd_Argv(3));
5519 origin[2] = atof(Cmd_Argv(4));
5521 else if (!strcmp(Cmd_Argv(1), "originx"))
5523 if (Cmd_Argc() != 3)
5525 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5528 origin[0] = atof(Cmd_Argv(2));
5530 else if (!strcmp(Cmd_Argv(1), "originy"))
5532 if (Cmd_Argc() != 3)
5534 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5537 origin[1] = atof(Cmd_Argv(2));
5539 else if (!strcmp(Cmd_Argv(1), "originz"))
5541 if (Cmd_Argc() != 3)
5543 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5546 origin[2] = atof(Cmd_Argv(2));
5548 else if (!strcmp(Cmd_Argv(1), "move"))
5550 if (Cmd_Argc() != 5)
5552 Con_Printf("usage: r_editlights_edit %s x y z\n", Cmd_Argv(1));
5555 origin[0] += atof(Cmd_Argv(2));
5556 origin[1] += atof(Cmd_Argv(3));
5557 origin[2] += atof(Cmd_Argv(4));
5559 else if (!strcmp(Cmd_Argv(1), "movex"))
5561 if (Cmd_Argc() != 3)
5563 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5566 origin[0] += atof(Cmd_Argv(2));
5568 else if (!strcmp(Cmd_Argv(1), "movey"))
5570 if (Cmd_Argc() != 3)
5572 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5575 origin[1] += atof(Cmd_Argv(2));
5577 else if (!strcmp(Cmd_Argv(1), "movez"))
5579 if (Cmd_Argc() != 3)
5581 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5584 origin[2] += atof(Cmd_Argv(2));
5586 else if (!strcmp(Cmd_Argv(1), "angles"))
5588 if (Cmd_Argc() != 5)
5590 Con_Printf("usage: r_editlights_edit %s x y z\n", Cmd_Argv(1));
5593 angles[0] = atof(Cmd_Argv(2));
5594 angles[1] = atof(Cmd_Argv(3));
5595 angles[2] = atof(Cmd_Argv(4));
5597 else if (!strcmp(Cmd_Argv(1), "anglesx"))
5599 if (Cmd_Argc() != 3)
5601 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5604 angles[0] = atof(Cmd_Argv(2));
5606 else if (!strcmp(Cmd_Argv(1), "anglesy"))
5608 if (Cmd_Argc() != 3)
5610 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5613 angles[1] = atof(Cmd_Argv(2));
5615 else if (!strcmp(Cmd_Argv(1), "anglesz"))
5617 if (Cmd_Argc() != 3)
5619 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5622 angles[2] = atof(Cmd_Argv(2));
5624 else if (!strcmp(Cmd_Argv(1), "color"))
5626 if (Cmd_Argc() != 5)
5628 Con_Printf("usage: r_editlights_edit %s red green blue\n", Cmd_Argv(1));
5631 color[0] = atof(Cmd_Argv(2));
5632 color[1] = atof(Cmd_Argv(3));
5633 color[2] = atof(Cmd_Argv(4));
5635 else if (!strcmp(Cmd_Argv(1), "radius"))
5637 if (Cmd_Argc() != 3)
5639 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5642 radius = atof(Cmd_Argv(2));
5644 else if (!strcmp(Cmd_Argv(1), "colorscale"))
5646 if (Cmd_Argc() == 3)
5648 double scale = atof(Cmd_Argv(2));
5655 if (Cmd_Argc() != 5)
5657 Con_Printf("usage: r_editlights_edit %s red green blue (OR grey instead of red green blue)\n", Cmd_Argv(1));
5660 color[0] *= atof(Cmd_Argv(2));
5661 color[1] *= atof(Cmd_Argv(3));
5662 color[2] *= atof(Cmd_Argv(4));
5665 else if (!strcmp(Cmd_Argv(1), "radiusscale") || !strcmp(Cmd_Argv(1), "sizescale"))
5667 if (Cmd_Argc() != 3)
5669 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5672 radius *= atof(Cmd_Argv(2));
5674 else if (!strcmp(Cmd_Argv(1), "style"))
5676 if (Cmd_Argc() != 3)
5678 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5681 style = atoi(Cmd_Argv(2));
5683 else if (!strcmp(Cmd_Argv(1), "cubemap"))
5687 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5690 if (Cmd_Argc() == 3)
5691 strlcpy(cubemapname, Cmd_Argv(2), sizeof(cubemapname));
5695 else if (!strcmp(Cmd_Argv(1), "shadows"))
5697 if (Cmd_Argc() != 3)
5699 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5702 shadows = Cmd_Argv(2)[0] == 'y' || Cmd_Argv(2)[0] == 'Y' || Cmd_Argv(2)[0] == 't' || atoi(Cmd_Argv(2));
5704 else if (!strcmp(Cmd_Argv(1), "corona"))
5706 if (Cmd_Argc() != 3)
5708 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5711 corona = atof(Cmd_Argv(2));
5713 else if (!strcmp(Cmd_Argv(1), "coronasize"))
5715 if (Cmd_Argc() != 3)
5717 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5720 coronasizescale = atof(Cmd_Argv(2));
5722 else if (!strcmp(Cmd_Argv(1), "ambient"))
5724 if (Cmd_Argc() != 3)
5726 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5729 ambientscale = atof(Cmd_Argv(2));
5731 else if (!strcmp(Cmd_Argv(1), "diffuse"))
5733 if (Cmd_Argc() != 3)
5735 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5738 diffusescale = atof(Cmd_Argv(2));
5740 else if (!strcmp(Cmd_Argv(1), "specular"))
5742 if (Cmd_Argc() != 3)
5744 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5747 specularscale = atof(Cmd_Argv(2));
5749 else if (!strcmp(Cmd_Argv(1), "normalmode"))
5751 if (Cmd_Argc() != 3)
5753 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5756 normalmode = Cmd_Argv(2)[0] == 'y' || Cmd_Argv(2)[0] == 'Y' || Cmd_Argv(2)[0] == 't' || atoi(Cmd_Argv(2));
5758 else if (!strcmp(Cmd_Argv(1), "realtimemode"))
5760 if (Cmd_Argc() != 3)
5762 Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
5765 realtimemode = Cmd_Argv(2)[0] == 'y' || Cmd_Argv(2)[0] == 'Y' || Cmd_Argv(2)[0] == 't' || atoi(Cmd_Argv(2));
5769 Con_Print("usage: r_editlights_edit [property] [value]\n");
5770 Con_Print("Selected light's properties:\n");
5771 Con_Printf("Origin : %f %f %f\n", r_shadow_selectedlight->origin[0], r_shadow_selectedlight->origin[1], r_shadow_selectedlight->origin[2]);
5772 Con_Printf("Angles : %f %f %f\n", r_shadow_selectedlight->angles[0], r_shadow_selectedlight->angles[1], r_shadow_selectedlight->angles[2]);
5773 Con_Printf("Color : %f %f %f\n", r_shadow_selectedlight->color[0], r_shadow_selectedlight->color[1], r_shadow_selectedlight->color[2]);
5774 Con_Printf("Radius : %f\n", r_shadow_selectedlight->radius);
5775 Con_Printf("Corona : %f\n", r_shadow_selectedlight->corona);
5776 Con_Printf("Style : %i\n", r_shadow_selectedlight->style);
5777 Con_Printf("Shadows : %s\n", r_shadow_selectedlight->shadow ? "yes" : "no");
5778 Con_Printf("Cubemap : %s\n", r_shadow_selectedlight->cubemapname);
5779 Con_Printf("CoronaSize : %f\n", r_shadow_selectedlight->coronasizescale);
5780 Con_Printf("Ambient : %f\n", r_shadow_selectedlight->ambientscale);
5781 Con_Printf("Diffuse : %f\n", r_shadow_selectedlight->diffusescale);
5782 Con_Printf("Specular : %f\n", r_shadow_selectedlight->specularscale);
5783 Con_Printf("NormalMode : %s\n", (r_shadow_selectedlight->flags & LIGHTFLAG_NORMALMODE) ? "yes" : "no");
5784 Con_Printf("RealTimeMode : %s\n", (r_shadow_selectedlight->flags & LIGHTFLAG_REALTIMEMODE) ? "yes" : "no");
5787 flags = (normalmode ? LIGHTFLAG_NORMALMODE : 0) | (realtimemode ? LIGHTFLAG_REALTIMEMODE : 0);
5788 R_Shadow_UpdateWorldLight(r_shadow_selectedlight, origin, angles, color, radius, corona, style, shadows, cubemapname, coronasizescale, ambientscale, diffusescale, specularscale, flags);
5791 void R_Shadow_EditLights_EditAll_f(void)
5797 if (!r_editlights.integer)
5799 Con_Print("Cannot edit lights when not in editing mode. Set r_editlights to 1.\n");
5803 // EditLights doesn't seem to have a "remove" command or something so:
5804 range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
5805 for (lightindex = 0;lightindex < range;lightindex++)
5807 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
5810 R_Shadow_SelectLight(light);
5811 R_Shadow_EditLights_Edit_f();
5815 void R_Shadow_EditLights_DrawSelectedLightProperties(void)
5817 int lightnumber, lightcount;
5818 size_t lightindex, range;
5822 if (!r_editlights.integer)
5824 x = vid_conwidth.value - 240;
5826 DrawQ_Pic(x-5, y-5, NULL, 250, 155, 0, 0, 0, 0.75, 0);
5829 range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
5830 for (lightindex = 0;lightindex < range;lightindex++)
5832 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
5835 if (light == r_shadow_selectedlight)
5836 lightnumber = lightindex;
5839 dpsnprintf(temp, sizeof(temp), "Cursor origin: %.0f %.0f %.0f", r_editlights_cursorlocation[0], r_editlights_cursorlocation[1], r_editlights_cursorlocation[2]); DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, false);y += 8;
5840 dpsnprintf(temp, sizeof(temp), "Total lights : %i active (%i total)", lightcount, (int)Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray)); DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, false);y += 8;
5842 if (r_shadow_selectedlight == NULL)
5844 dpsnprintf(temp, sizeof(temp), "Light #%i properties:", lightnumber);DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5845 dpsnprintf(temp, sizeof(temp), "Origin : %.0f %.0f %.0f\n", r_shadow_selectedlight->origin[0], r_shadow_selectedlight->origin[1], r_shadow_selectedlight->origin[2]);DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5846 dpsnprintf(temp, sizeof(temp), "Angles : %.0f %.0f %.0f\n", r_shadow_selectedlight->angles[0], r_shadow_selectedlight->angles[1], r_shadow_selectedlight->angles[2]);DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5847 dpsnprintf(temp, sizeof(temp), "Color : %.2f %.2f %.2f\n", r_shadow_selectedlight->color[0], r_shadow_selectedlight->color[1], r_shadow_selectedlight->color[2]);DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5848 dpsnprintf(temp, sizeof(temp), "Radius : %.0f\n", r_shadow_selectedlight->radius);DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5849 dpsnprintf(temp, sizeof(temp), "Corona : %.0f\n", r_shadow_selectedlight->corona);DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5850 dpsnprintf(temp, sizeof(temp), "Style : %i\n", r_shadow_selectedlight->style);DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5851 dpsnprintf(temp, sizeof(temp), "Shadows : %s\n", r_shadow_selectedlight->shadow ? "yes" : "no");DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5852 dpsnprintf(temp, sizeof(temp), "Cubemap : %s\n", r_shadow_selectedlight->cubemapname);DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5853 dpsnprintf(temp, sizeof(temp), "CoronaSize : %.2f\n", r_shadow_selectedlight->coronasizescale);DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5854 dpsnprintf(temp, sizeof(temp), "Ambient : %.2f\n", r_shadow_selectedlight->ambientscale);DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5855 dpsnprintf(temp, sizeof(temp), "Diffuse : %.2f\n", r_shadow_selectedlight->diffusescale);DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5856 dpsnprintf(temp, sizeof(temp), "Specular : %.2f\n", r_shadow_selectedlight->specularscale);DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5857 dpsnprintf(temp, sizeof(temp), "NormalMode : %s\n", (r_shadow_selectedlight->flags & LIGHTFLAG_NORMALMODE) ? "yes" : "no");DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5858 dpsnprintf(temp, sizeof(temp), "RealTimeMode : %s\n", (r_shadow_selectedlight->flags & LIGHTFLAG_REALTIMEMODE) ? "yes" : "no");DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true);y += 8;
5861 void R_Shadow_EditLights_ToggleShadow_f(void)
5863 if (!r_editlights.integer)
5865 Con_Print("Cannot spawn light when not in editing mode. Set r_editlights to 1.\n");
5868 if (!r_shadow_selectedlight)
5870 Con_Print("No selected light.\n");
5873 R_Shadow_UpdateWorldLight(r_shadow_selectedlight, r_shadow_selectedlight->origin, r_shadow_selectedlight->angles, r_shadow_selectedlight->color, r_shadow_selectedlight->radius, r_shadow_selectedlight->corona, r_shadow_selectedlight->style, !r_shadow_selectedlight->shadow, r_shadow_selectedlight->cubemapname, r_shadow_selectedlight->coronasizescale, r_shadow_selectedlight->ambientscale, r_shadow_selectedlight->diffusescale, r_shadow_selectedlight->specularscale, r_shadow_selectedlight->flags);
5876 void R_Shadow_EditLights_ToggleCorona_f(void)
5878 if (!r_editlights.integer)
5880 Con_Print("Cannot spawn light when not in editing mode. Set r_editlights to 1.\n");
5883 if (!r_shadow_selectedlight)
5885 Con_Print("No selected light.\n");
5888 R_Shadow_UpdateWorldLight(r_shadow_selectedlight, r_shadow_selectedlight->origin, r_shadow_selectedlight->angles, r_shadow_selectedlight->color, r_shadow_selectedlight->radius, !r_shadow_selectedlight->corona, r_shadow_selectedlight->style, r_shadow_selectedlight->shadow, r_shadow_selectedlight->cubemapname, r_shadow_selectedlight->coronasizescale, r_shadow_selectedlight->ambientscale, r_shadow_selectedlight->diffusescale, r_shadow_selectedlight->specularscale, r_shadow_selectedlight->flags);
5891 void R_Shadow_EditLights_Remove_f(void)
5893 if (!r_editlights.integer)
5895 Con_Print("Cannot remove light when not in editing mode. Set r_editlights to 1.\n");
5898 if (!r_shadow_selectedlight)
5900 Con_Print("No selected light.\n");
5903 R_Shadow_FreeWorldLight(r_shadow_selectedlight);
5904 r_shadow_selectedlight = NULL;
5907 void R_Shadow_EditLights_Help_f(void)
5910 "Documentation on r_editlights system:\n"
5912 "r_editlights : enable/disable editing mode\n"
5913 "r_editlights_cursordistance : maximum distance of cursor from eye\n"
5914 "r_editlights_cursorpushback : push back cursor this far from surface\n"
5915 "r_editlights_cursorpushoff : push cursor off surface this far\n"
5916 "r_editlights_cursorgrid : snap cursor to grid of this size\n"
5917 "r_editlights_quakelightsizescale : imported quake light entity size scaling\n"
5919 "r_editlights_help : this help\n"
5920 "r_editlights_clear : remove all lights\n"
5921 "r_editlights_reload : reload .rtlights, .lights file, or entities\n"
5922 "r_editlights_save : save to .rtlights file\n"
5923 "r_editlights_spawn : create a light with default settings\n"
5924 "r_editlights_edit command : edit selected light - more documentation below\n"
5925 "r_editlights_remove : remove selected light\n"
5926 "r_editlights_toggleshadow : toggles on/off selected light's shadow property\n"
5927 "r_editlights_importlightentitiesfrommap : reload light entities\n"
5928 "r_editlights_importlightsfile : reload .light file (produced by hlight)\n"
5930 "origin x y z : set light location\n"
5931 "originx x: set x component of light location\n"
5932 "originy y: set y component of light location\n"
5933 "originz z: set z component of light location\n"
5934 "move x y z : adjust light location\n"
5935 "movex x: adjust x component of light location\n"
5936 "movey y: adjust y component of light location\n"
5937 "movez z: adjust z component of light location\n"
5938 "angles x y z : set light angles\n"
5939 "anglesx x: set x component of light angles\n"
5940 "anglesy y: set y component of light angles\n"
5941 "anglesz z: set z component of light angles\n"
5942 "color r g b : set color of light (can be brighter than 1 1 1)\n"
5943 "radius radius : set radius (size) of light\n"
5944 "colorscale grey : multiply color of light (1 does nothing)\n"
5945 "colorscale r g b : multiply color of light (1 1 1 does nothing)\n"
5946 "radiusscale scale : multiply radius (size) of light (1 does nothing)\n"
5947 "sizescale scale : multiply radius (size) of light (1 does nothing)\n"
5948 "style style : set lightstyle of light (flickering patterns, switches, etc)\n"
5949 "cubemap basename : set filter cubemap of light (not yet supported)\n"
5950 "shadows 1/0 : turn on/off shadows\n"
5951 "corona n : set corona intensity\n"
5952 "coronasize n : set corona size (0-1)\n"
5953 "ambient n : set ambient intensity (0-1)\n"
5954 "diffuse n : set diffuse intensity (0-1)\n"
5955 "specular n : set specular intensity (0-1)\n"
5956 "normalmode 1/0 : turn on/off rendering of this light in rtworld 0 mode\n"
5957 "realtimemode 1/0 : turn on/off rendering of this light in rtworld 1 mode\n"
5958 "<nothing> : print light properties to console\n"
5962 void R_Shadow_EditLights_CopyInfo_f(void)
5964 if (!r_editlights.integer)
5966 Con_Print("Cannot copy light info when not in editing mode. Set r_editlights to 1.\n");
5969 if (!r_shadow_selectedlight)
5971 Con_Print("No selected light.\n");
5974 VectorCopy(r_shadow_selectedlight->angles, r_shadow_bufferlight.angles);
5975 VectorCopy(r_shadow_selectedlight->color, r_shadow_bufferlight.color);
5976 r_shadow_bufferlight.radius = r_shadow_selectedlight->radius;
5977 r_shadow_bufferlight.style = r_shadow_selectedlight->style;
5978 if (r_shadow_selectedlight->cubemapname)
5979 strlcpy(r_shadow_bufferlight.cubemapname, r_shadow_selectedlight->cubemapname, sizeof(r_shadow_bufferlight.cubemapname));
5981 r_shadow_bufferlight.cubemapname[0] = 0;
5982 r_shadow_bufferlight.shadow = r_shadow_selectedlight->shadow;
5983 r_shadow_bufferlight.corona = r_shadow_selectedlight->corona;
5984 r_shadow_bufferlight.coronasizescale = r_shadow_selectedlight->coronasizescale;
5985 r_shadow_bufferlight.ambientscale = r_shadow_selectedlight->ambientscale;
5986 r_shadow_bufferlight.diffusescale = r_shadow_selectedlight->diffusescale;
5987 r_shadow_bufferlight.specularscale = r_shadow_selectedlight->specularscale;
5988 r_shadow_bufferlight.flags = r_shadow_selectedlight->flags;
5991 void R_Shadow_EditLights_PasteInfo_f(void)
5993 if (!r_editlights.integer)
5995 Con_Print("Cannot paste light info when not in editing mode. Set r_editlights to 1.\n");
5998 if (!r_shadow_selectedlight)
6000 Con_Print("No selected light.\n");
6003 R_Shadow_UpdateWorldLight(r_shadow_selectedlight, r_shadow_selectedlight->origin, r_shadow_bufferlight.angles, r_shadow_bufferlight.color, r_shadow_bufferlight.radius, r_shadow_bufferlight.corona, r_shadow_bufferlight.style, r_shadow_bufferlight.shadow, r_shadow_bufferlight.cubemapname, r_shadow_bufferlight.coronasizescale, r_shadow_bufferlight.ambientscale, r_shadow_bufferlight.diffusescale, r_shadow_bufferlight.specularscale, r_shadow_bufferlight.flags);
6006 void R_Shadow_EditLights_Init(void)
6008 Cvar_RegisterVariable(&r_editlights);
6009 Cvar_RegisterVariable(&r_editlights_cursordistance);
6010 Cvar_RegisterVariable(&r_editlights_cursorpushback);
6011 Cvar_RegisterVariable(&r_editlights_cursorpushoff);
6012 Cvar_RegisterVariable(&r_editlights_cursorgrid);
6013 Cvar_RegisterVariable(&r_editlights_quakelightsizescale);
6014 Cmd_AddCommand("r_editlights_help", R_Shadow_EditLights_Help_f, "prints documentation on console commands and variables in rtlight editing system");
6015 Cmd_AddCommand("r_editlights_clear", R_Shadow_EditLights_Clear_f, "removes all world lights (let there be darkness!)");
6016 Cmd_AddCommand("r_editlights_reload", R_Shadow_EditLights_Reload_f, "reloads rtlights file (or imports from .lights file or .ent file or the map itself)");
6017 Cmd_AddCommand("r_editlights_save", R_Shadow_EditLights_Save_f, "save .rtlights file for current level");
6018 Cmd_AddCommand("r_editlights_spawn", R_Shadow_EditLights_Spawn_f, "creates a light with default properties (let there be light!)");
6019 Cmd_AddCommand("r_editlights_edit", R_Shadow_EditLights_Edit_f, "changes a property on the selected light");
6020 Cmd_AddCommand("r_editlights_editall", R_Shadow_EditLights_EditAll_f, "changes a property on ALL lights at once (tip: use radiusscale and colorscale to alter these properties)");
6021 Cmd_AddCommand("r_editlights_remove", R_Shadow_EditLights_Remove_f, "remove selected light");
6022 Cmd_AddCommand("r_editlights_toggleshadow", R_Shadow_EditLights_ToggleShadow_f, "toggle on/off the shadow option on the selected light");
6023 Cmd_AddCommand("r_editlights_togglecorona", R_Shadow_EditLights_ToggleCorona_f, "toggle on/off the corona option on the selected light");
6024 Cmd_AddCommand("r_editlights_importlightentitiesfrommap", R_Shadow_EditLights_ImportLightEntitiesFromMap_f, "load lights from .ent file or map entities (ignoring .rtlights or .lights file)");
6025 Cmd_AddCommand("r_editlights_importlightsfile", R_Shadow_EditLights_ImportLightsFile_f, "load lights from .lights file (ignoring .rtlights or .ent files and map entities)");
6026 Cmd_AddCommand("r_editlights_copyinfo", R_Shadow_EditLights_CopyInfo_f, "store a copy of all properties (except origin) of the selected light");
6027 Cmd_AddCommand("r_editlights_pasteinfo", R_Shadow_EditLights_PasteInfo_f, "apply the stored properties onto the selected light (making it exactly identical except for origin)");
6033 =============================================================================
6037 =============================================================================
6040 void R_CompleteLightPoint(vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const vec3_t p, int dynamic)
6042 VectorClear(diffusecolor);
6043 VectorClear(diffusenormal);
6045 if (!r_fullbright.integer && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.LightPoint)
6047 ambientcolor[0] = ambientcolor[1] = ambientcolor[2] = r_refdef.scene.ambient * (2.0f / 128.0f);
6048 r_refdef.scene.worldmodel->brush.LightPoint(r_refdef.scene.worldmodel, p, ambientcolor, diffusecolor, diffusenormal);
6051 VectorSet(ambientcolor, 1, 1, 1);
6058 for (i = 0;i < r_refdef.scene.numlights;i++)
6060 light = r_refdef.scene.lights[i];
6061 Matrix4x4_Transform(&light->matrix_worldtolight, p, v);
6062 f = 1 - VectorLength2(v);
6063 if (f > 0 && CL_TraceLine(p, light->shadoworigin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction == 1)
6064 VectorMA(ambientcolor, f, light->currentcolor, ambientcolor);