r_shadow.c

   1
   2 /*
   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)
   9
  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.
  15
  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).
  22
  23 Patent warning:
  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).
  29
  30
  31
  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).
  38
  39
  40
  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
  46 in some ideal cases).
  47
  48
  49
  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.
  60
  61
  62
  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.
  69
  70
  71
  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.
  80
  81
  82
  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
  89 texturing).
  90
  91
  92
  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).
  96
  97
  98
  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.
 103
 104
 105
 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
 114 this however).
 115
 116
 117
 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
 127 other areas).
 128
 129
 130
 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.
 135 */
 136
 137 #include "quakedef.h"
 138 #include "r_shadow.h"
 139 #include "cl_collision.h"
 140 #include "portals.h"
 141 #include "image.h"
 142
 143 extern void R_Shadow_EditLights_Init(void);
 144
 145 typedef enum r_shadow_rendermode_e
 146 {
 147         R_SHADOW_RENDERMODE_NONE,
 148         R_SHADOW_RENDERMODE_ZPASS_STENCIL,
 149         R_SHADOW_RENDERMODE_ZPASS_SEPARATESTENCIL,
 150         R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE,
 151         R_SHADOW_RENDERMODE_ZFAIL_STENCIL,
 152         R_SHADOW_RENDERMODE_ZFAIL_SEPARATESTENCIL,
 153         R_SHADOW_RENDERMODE_ZFAIL_STENCILTWOSIDE,
 154         R_SHADOW_RENDERMODE_LIGHT_VERTEX,
 155         R_SHADOW_RENDERMODE_LIGHT_DOT3,
 156         R_SHADOW_RENDERMODE_LIGHT_GLSL,
 157         R_SHADOW_RENDERMODE_VISIBLEVOLUMES,
 158         R_SHADOW_RENDERMODE_VISIBLELIGHTING,
 159 }
 160 r_shadow_rendermode_t;
 161
 162 r_shadow_rendermode_t r_shadow_rendermode = R_SHADOW_RENDERMODE_NONE;
 163 r_shadow_rendermode_t r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_NONE;
 164 r_shadow_rendermode_t r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_NONE;
 165 r_shadow_rendermode_t r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_NONE;
 166
 167 int maxshadowtriangles;
 168 int *shadowelements;
 169
 170 int maxshadowvertices;
 171 float *shadowvertex3f;
 172
 173 int maxshadowmark;
 174 int numshadowmark;
 175 int *shadowmark;
 176 int *shadowmarklist;
 177 int shadowmarkcount;
 178
 179 int maxvertexupdate;
 180 int *vertexupdate;
 181 int *vertexremap;
 182 int vertexupdatenum;
 183
 184 int r_shadow_buffer_numleafpvsbytes;
 185 unsigned char *r_shadow_buffer_visitingleafpvs;
 186 unsigned char *r_shadow_buffer_leafpvs;
 187 int *r_shadow_buffer_leaflist;
 188
 189 int r_shadow_buffer_numsurfacepvsbytes;
 190 unsigned char *r_shadow_buffer_surfacepvs;
 191 int *r_shadow_buffer_surfacelist;
 192
 193 int r_shadow_buffer_numshadowtrispvsbytes;
 194 unsigned char *r_shadow_buffer_shadowtrispvs;
 195 int r_shadow_buffer_numlighttrispvsbytes;
 196 unsigned char *r_shadow_buffer_lighttrispvs;
 197
 198 rtexturepool_t *r_shadow_texturepool;
 199 rtexture_t *r_shadow_attenuationgradienttexture;
 200 rtexture_t *r_shadow_attenuation2dtexture;
 201 rtexture_t *r_shadow_attenuation3dtexture;
 202 rtexture_t *r_shadow_lightcorona;
 203
 204 // lights are reloaded when this changes
 205 char r_shadow_mapname[MAX_QPATH];
 206
 207 // used only for light filters (cubemaps)
 208 rtexturepool_t *r_shadow_filters_texturepool;
 209
 210 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"};
 211 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"};
 212 cvar_t r_shadow_debuglight = {0, "r_shadow_debuglight", "-1", "renders only one light, for level design purposes or debugging"};
 213 cvar_t r_shadow_usenormalmap = {CVAR_SAVE, "r_shadow_usenormalmap", "1", "enables use of directional shading on lights"};
 214 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)"};
 215 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"};
 216 cvar_t r_shadow_glossintensity = {0, "r_shadow_glossintensity", "1", "how bright textured glossmaps should look if r_shadow_gloss is 1 or 2"};
 217 cvar_t r_shadow_glossexponent = {0, "r_shadow_glossexponent", "32", "how 'sharp' the gloss should appear (specular power)"};
 218 cvar_t r_shadow_glossexact = {0, "r_shadow_glossexact", "0", "use exact reflection math for gloss (slightly slower, but should look a tad better)"};
 219 cvar_t r_shadow_lightattenuationdividebias = {0, "r_shadow_lightattenuationdividebias", "1", "changes attenuation texture generation"};
 220 cvar_t r_shadow_lightattenuationlinearscale = {0, "r_shadow_lightattenuationlinearscale", "2", "changes attenuation texture generation"};
 221 cvar_t r_shadow_lightintensityscale = {0, "r_shadow_lightintensityscale", "1", "renders all world lights brighter or darker"};
 222 cvar_t r_shadow_lightradiusscale = {0, "r_shadow_lightradiusscale", "1", "renders all world lights larger or smaller"};
 223 cvar_t r_shadow_portallight = {0, "r_shadow_portallight", "1", "use portal culling to exactly determine lit triangles when compiling world lights"};
 224 cvar_t r_shadow_projectdistance = {0, "r_shadow_projectdistance", "1000000", "how far to cast shadows"};
 225 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)"};
 226 cvar_t r_shadow_realtime_dlight = {CVAR_SAVE, "r_shadow_realtime_dlight", "1", "enables rendering of dynamic lights such as explosions and rocket light"};
 227 cvar_t r_shadow_realtime_dlight_shadows = {CVAR_SAVE, "r_shadow_realtime_dlight_shadows", "1", "enables rendering of shadows from dynamic lights"};
 228 cvar_t r_shadow_realtime_dlight_svbspculling = {0, "r_shadow_realtime_dlight_svbspculling", "0", "enables svbsp optimization on dynamic lights (very slow!)"};
 229 cvar_t r_shadow_realtime_dlight_portalculling = {0, "r_shadow_realtime_dlight_portalculling", "0", "enables portal optimization on dynamic lights (slow!)"};
 230 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)"};
 231 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"};
 232 cvar_t r_shadow_realtime_world_shadows = {CVAR_SAVE, "r_shadow_realtime_world_shadows", "1", "enables rendering of shadows from world lights"};
 233 cvar_t r_shadow_realtime_world_compile = {0, "r_shadow_realtime_world_compile", "1", "enables compilation of world lights for higher performance rendering"};
 234 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"};
 235 cvar_t r_shadow_realtime_world_compilesvbsp = {0, "r_shadow_realtime_world_compilesvbsp", "1", "enables svbsp optimization during compilation"};
 236 cvar_t r_shadow_realtime_world_compileportalculling = {0, "r_shadow_realtime_world_compileportalculling", "1", "enables portal-based culling optimization during compilation"};
 237 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)"};
 238 cvar_t r_shadow_culltriangles = {0, "r_shadow_culltriangles", "1", "performs more expensive tests to remove unnecessary triangles of lit surfaces"};
 239 cvar_t r_shadow_polygonfactor = {0, "r_shadow_polygonfactor", "0", "how much to enlarge shadow volume polygons when rendering (should be 0!)"};
 240 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)"};
 241 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)"};
 242 cvar_t r_coronas = {CVAR_SAVE, "r_coronas", "1", "brightness of corona flare effects around certain lights, 0 disables corona effects"};
 243 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"};
 244 cvar_t r_coronas_occlusionquery = {CVAR_SAVE, "r_coronas_occlusionquery", "1", "use GL_ARB_occlusion_query extension if supported (fades coronas according to visibility)"};
 245 cvar_t gl_flashblend = {CVAR_SAVE, "gl_flashblend", "0", "render bright coronas for dynamic lights instead of actual lighting, fast but ugly"};
 246 cvar_t gl_ext_separatestencil = {0, "gl_ext_separatestencil", "1", "make use of OpenGL 2.0 glStencilOpSeparate or GL_ATI_separate_stencil extension"};
 247 cvar_t gl_ext_stenciltwoside = {0, "gl_ext_stenciltwoside", "1", "make use of GL_EXT_stenciltwoside extension (NVIDIA only)"};
 248 cvar_t r_editlights = {0, "r_editlights", "0", "enables .rtlights file editing mode"};
 249 cvar_t r_editlights_cursordistance = {0, "r_editlights_cursordistance", "1024", "maximum distance of cursor from eye"};
 250 cvar_t r_editlights_cursorpushback = {0, "r_editlights_cursorpushback", "0", "how far to pull the cursor back toward the eye"};
 251 cvar_t r_editlights_cursorpushoff = {0, "r_editlights_cursorpushoff", "4", "how far to push the cursor off the impacted surface"};
 252 cvar_t r_editlights_cursorgrid = {0, "r_editlights_cursorgrid", "4", "snaps cursor to this grid size"};
 253 cvar_t r_editlights_quakelightsizescale = {CVAR_SAVE, "r_editlights_quakelightsizescale", "1", "changes size of light entities loaded from a map"};
 254
 255 // note the table actually includes one more value, just to avoid the need to clamp the distance index due to minor math error
 256 #define ATTENTABLESIZE 256
 257 // 1D gradient, 2D circle and 3D sphere attenuation textures
 258 #define ATTEN1DSIZE 32
 259 #define ATTEN2DSIZE 64
 260 #define ATTEN3DSIZE 32
 261
 262 static float r_shadow_attendividebias; // r_shadow_lightattenuationdividebias
 263 static float r_shadow_attenlinearscale; // r_shadow_lightattenuationlinearscale
 264 static float r_shadow_attentable[ATTENTABLESIZE+1];
 265
 266 rtlight_t *r_shadow_compilingrtlight;
 267 static memexpandablearray_t r_shadow_worldlightsarray;
 268 dlight_t *r_shadow_selectedlight;
 269 dlight_t r_shadow_bufferlight;
 270 vec3_t r_editlights_cursorlocation;
 271
 272 extern int con_vislines;
 273
 274 typedef struct cubemapinfo_s
 275 {
 276         char basename[64];
 277         rtexture_t *texture;
 278 }
 279 cubemapinfo_t;
 280
 281 #define MAX_CUBEMAPS 256
 282 static int numcubemaps;
 283 static cubemapinfo_t cubemaps[MAX_CUBEMAPS];
 284
 285 void R_Shadow_UncompileWorldLights(void);
 286 void R_Shadow_ClearWorldLights(void);
 287 void R_Shadow_SaveWorldLights(void);
 288 void R_Shadow_LoadWorldLights(void);
 289 void R_Shadow_LoadLightsFile(void);
 290 void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void);
 291 void R_Shadow_EditLights_Reload_f(void);
 292 void R_Shadow_ValidateCvars(void);
 293 static void R_Shadow_MakeTextures(void);
 294
 295 // VorteX: custom editor light sprites
 296 #define EDLIGHTSPRSIZE                  8
 297 cachepic_t *r_editlights_sprcursor;
 298 cachepic_t *r_editlights_sprlight;
 299 cachepic_t *r_editlights_sprnoshadowlight;
 300 cachepic_t *r_editlights_sprcubemaplight;
 301 cachepic_t *r_editlights_sprcubemapnoshadowlight;
 302 cachepic_t *r_editlights_sprselection;
 303
 304 void r_shadow_start(void)
 305 {
 306         // allocate vertex processing arrays
 307         numcubemaps = 0;
 308         r_shadow_attenuationgradienttexture = NULL;
 309         r_shadow_attenuation2dtexture = NULL;
 310         r_shadow_attenuation3dtexture = NULL;
 311         r_shadow_texturepool = NULL;
 312         r_shadow_filters_texturepool = NULL;
 313         R_Shadow_ValidateCvars();
 314         R_Shadow_MakeTextures();
 315         maxshadowtriangles = 0;
 316         shadowelements = NULL;
 317         maxshadowvertices = 0;
 318         shadowvertex3f = NULL;
 319         maxvertexupdate = 0;
 320         vertexupdate = NULL;
 321         vertexremap = NULL;
 322         vertexupdatenum = 0;
 323         maxshadowmark = 0;
 324         numshadowmark = 0;
 325         shadowmark = NULL;
 326         shadowmarklist = NULL;
 327         shadowmarkcount = 0;
 328         r_shadow_buffer_numleafpvsbytes = 0;
 329         r_shadow_buffer_visitingleafpvs = NULL;
 330         r_shadow_buffer_leafpvs = NULL;
 331         r_shadow_buffer_leaflist = NULL;
 332         r_shadow_buffer_numsurfacepvsbytes = 0;
 333         r_shadow_buffer_surfacepvs = NULL;
 334         r_shadow_buffer_surfacelist = NULL;
 335         r_shadow_buffer_numshadowtrispvsbytes = 0;
 336         r_shadow_buffer_shadowtrispvs = NULL;
 337         r_shadow_buffer_numlighttrispvsbytes = 0;
 338         r_shadow_buffer_lighttrispvs = NULL;
 339 }
 340
 341 void r_shadow_shutdown(void)
 342 {
 343         R_Shadow_UncompileWorldLights();
 344         numcubemaps = 0;
 345         r_shadow_attenuationgradienttexture = NULL;
 346         r_shadow_attenuation2dtexture = NULL;
 347         r_shadow_attenuation3dtexture = NULL;
 348         R_FreeTexturePool(&r_shadow_texturepool);
 349         R_FreeTexturePool(&r_shadow_filters_texturepool);
 350         maxshadowtriangles = 0;
 351         if (shadowelements)
 352                 Mem_Free(shadowelements);
 353         shadowelements = NULL;
 354         if (shadowvertex3f)
 355                 Mem_Free(shadowvertex3f);
 356         shadowvertex3f = NULL;
 357         maxvertexupdate = 0;
 358         if (vertexupdate)
 359                 Mem_Free(vertexupdate);
 360         vertexupdate = NULL;
 361         if (vertexremap)
 362                 Mem_Free(vertexremap);
 363         vertexremap = NULL;
 364         vertexupdatenum = 0;
 365         maxshadowmark = 0;
 366         numshadowmark = 0;
 367         if (shadowmark)
 368                 Mem_Free(shadowmark);
 369         shadowmark = NULL;
 370         if (shadowmarklist)
 371                 Mem_Free(shadowmarklist);
 372         shadowmarklist = NULL;
 373         shadowmarkcount = 0;
 374         r_shadow_buffer_numleafpvsbytes = 0;
 375         if (r_shadow_buffer_visitingleafpvs)
 376                 Mem_Free(r_shadow_buffer_visitingleafpvs);
 377         r_shadow_buffer_visitingleafpvs = NULL;
 378         if (r_shadow_buffer_leafpvs)
 379                 Mem_Free(r_shadow_buffer_leafpvs);
 380         r_shadow_buffer_leafpvs = NULL;
 381         if (r_shadow_buffer_leaflist)
 382                 Mem_Free(r_shadow_buffer_leaflist);
 383         r_shadow_buffer_leaflist = NULL;
 384         r_shadow_buffer_numsurfacepvsbytes = 0;
 385         if (r_shadow_buffer_surfacepvs)
 386                 Mem_Free(r_shadow_buffer_surfacepvs);
 387         r_shadow_buffer_surfacepvs = NULL;
 388         if (r_shadow_buffer_surfacelist)
 389                 Mem_Free(r_shadow_buffer_surfacelist);
 390         r_shadow_buffer_surfacelist = NULL;
 391         r_shadow_buffer_numshadowtrispvsbytes = 0;
 392         if (r_shadow_buffer_shadowtrispvs)
 393                 Mem_Free(r_shadow_buffer_shadowtrispvs);
 394         r_shadow_buffer_numlighttrispvsbytes = 0;
 395         if (r_shadow_buffer_lighttrispvs)
 396                 Mem_Free(r_shadow_buffer_lighttrispvs);
 397 }
 398
 399 void r_shadow_newmap(void)
 400 {
 401         if (cl.worldmodel && strncmp(cl.worldmodel->name, r_shadow_mapname, sizeof(r_shadow_mapname)))
 402                 R_Shadow_EditLights_Reload_f();
 403 }
 404
 405 void R_Shadow_Help_f(void)
 406 {
 407         Con_Printf(
 408 "Documentation on r_shadow system:\n"
 409 "Settings:\n"
 410 "r_shadow_bumpscale_basetexture : base texture as bumpmap with this scale\n"
 411 "r_shadow_bumpscale_bumpmap : depth scale for bumpmap conversion\n"
 412 "r_shadow_debuglight : render only this light number (-1 = all)\n"
 413 "r_shadow_gloss 0/1/2 : no gloss, gloss textures only, force gloss\n"
 414 "r_shadow_gloss2intensity : brightness of forced gloss\n"
 415 "r_shadow_glossintensity : brightness of textured gloss\n"
 416 "r_shadow_lightattenuationlinearscale : used to generate attenuation texture\n"
 417 "r_shadow_lightattenuationdividebias : used to generate attenuation texture\n"
 418 "r_shadow_lightintensityscale : scale rendering brightness of all lights\n"
 419 "r_shadow_lightradiusscale : scale rendering radius of all lights\n"
 420 "r_shadow_portallight : use portal visibility for static light precomputation\n"
 421 "r_shadow_projectdistance : shadow volume projection distance\n"
 422 "r_shadow_realtime_dlight : use high quality dynamic lights in normal mode\n"
 423 "r_shadow_realtime_dlight_shadows : cast shadows from dlights\n"
 424 "r_shadow_realtime_world : use high quality world lighting mode\n"
 425 "r_shadow_realtime_world_lightmaps : use lightmaps in addition to lights\n"
 426 "r_shadow_realtime_world_shadows : cast shadows from world lights\n"
 427 "r_shadow_realtime_world_compile : compile surface/visibility information\n"
 428 "r_shadow_realtime_world_compileshadow : compile shadow geometry\n"
 429 "r_shadow_scissor : use scissor optimization\n"
 430 "r_shadow_polygonfactor : nudge shadow volumes closer/further\n"
 431 "r_shadow_polygonoffset : nudge shadow volumes closer/further\n"
 432 "r_shadow_texture3d : use 3d attenuation texture (if hardware supports)\n"
 433 "r_showlighting : useful for performance testing; bright = slow!\n"
 434 "r_showshadowvolumes : useful for performance testing; bright = slow!\n"
 435 "Commands:\n"
 436 "r_shadow_help : this help\n"
 437         );
 438 }
 439
 440 void R_Shadow_Init(void)
 441 {
 442         Cvar_RegisterVariable(&r_shadow_bumpscale_basetexture);
 443         Cvar_RegisterVariable(&r_shadow_bumpscale_bumpmap);
 444         Cvar_RegisterVariable(&r_shadow_usenormalmap);
 445         Cvar_RegisterVariable(&r_shadow_debuglight);
 446         Cvar_RegisterVariable(&r_shadow_gloss);
 447         Cvar_RegisterVariable(&r_shadow_gloss2intensity);
 448         Cvar_RegisterVariable(&r_shadow_glossintensity);
 449         Cvar_RegisterVariable(&r_shadow_glossexponent);
 450         Cvar_RegisterVariable(&r_shadow_glossexact);
 451         Cvar_RegisterVariable(&r_shadow_lightattenuationdividebias);
 452         Cvar_RegisterVariable(&r_shadow_lightattenuationlinearscale);
 453         Cvar_RegisterVariable(&r_shadow_lightintensityscale);
 454         Cvar_RegisterVariable(&r_shadow_lightradiusscale);
 455         Cvar_RegisterVariable(&r_shadow_portallight);
 456         Cvar_RegisterVariable(&r_shadow_projectdistance);
 457         Cvar_RegisterVariable(&r_shadow_frontsidecasting);
 458         Cvar_RegisterVariable(&r_shadow_realtime_dlight);
 459         Cvar_RegisterVariable(&r_shadow_realtime_dlight_shadows);
 460         Cvar_RegisterVariable(&r_shadow_realtime_dlight_svbspculling);
 461         Cvar_RegisterVariable(&r_shadow_realtime_dlight_portalculling);
 462         Cvar_RegisterVariable(&r_shadow_realtime_world);
 463         Cvar_RegisterVariable(&r_shadow_realtime_world_lightmaps);
 464         Cvar_RegisterVariable(&r_shadow_realtime_world_shadows);
 465         Cvar_RegisterVariable(&r_shadow_realtime_world_compile);
 466         Cvar_RegisterVariable(&r_shadow_realtime_world_compileshadow);
 467         Cvar_RegisterVariable(&r_shadow_realtime_world_compilesvbsp);
 468         Cvar_RegisterVariable(&r_shadow_realtime_world_compileportalculling);
 469         Cvar_RegisterVariable(&r_shadow_scissor);
 470         Cvar_RegisterVariable(&r_shadow_culltriangles);
 471         Cvar_RegisterVariable(&r_shadow_polygonfactor);
 472         Cvar_RegisterVariable(&r_shadow_polygonoffset);
 473         Cvar_RegisterVariable(&r_shadow_texture3d);
 474         Cvar_RegisterVariable(&r_coronas);
 475         Cvar_RegisterVariable(&r_coronas_occlusionsizescale);
 476         Cvar_RegisterVariable(&r_coronas_occlusionquery);
 477         Cvar_RegisterVariable(&gl_flashblend);
 478         Cvar_RegisterVariable(&gl_ext_separatestencil);
 479         Cvar_RegisterVariable(&gl_ext_stenciltwoside);
 480         if (gamemode == GAME_TENEBRAE)
 481         {
 482                 Cvar_SetValue("r_shadow_gloss", 2);
 483                 Cvar_SetValue("r_shadow_bumpscale_basetexture", 4);
 484         }
 485         Cmd_AddCommand("r_shadow_help", R_Shadow_Help_f, "prints documentation on console commands and variables used by realtime lighting and shadowing system");
 486         R_Shadow_EditLights_Init();
 487         Mem_ExpandableArray_NewArray(&r_shadow_worldlightsarray, r_main_mempool, sizeof(dlight_t), 128);
 488         maxshadowtriangles = 0;
 489         shadowelements = NULL;
 490         maxshadowvertices = 0;
 491         shadowvertex3f = NULL;
 492         maxvertexupdate = 0;
 493         vertexupdate = NULL;
 494         vertexremap = NULL;
 495         vertexupdatenum = 0;
 496         maxshadowmark = 0;
 497         numshadowmark = 0;
 498         shadowmark = NULL;
 499         shadowmarklist = NULL;
 500         shadowmarkcount = 0;
 501         r_shadow_buffer_numleafpvsbytes = 0;
 502         r_shadow_buffer_visitingleafpvs = NULL;
 503         r_shadow_buffer_leafpvs = NULL;
 504         r_shadow_buffer_leaflist = NULL;
 505         r_shadow_buffer_numsurfacepvsbytes = 0;
 506         r_shadow_buffer_surfacepvs = NULL;
 507         r_shadow_buffer_surfacelist = NULL;
 508         r_shadow_buffer_shadowtrispvs = NULL;
 509         r_shadow_buffer_lighttrispvs = NULL;
 510         R_RegisterModule("R_Shadow", r_shadow_start, r_shadow_shutdown, r_shadow_newmap);
 511 }
 512
 513 matrix4x4_t matrix_attenuationxyz =
 514 {
 515         {
 516                 {0.5, 0.0, 0.0, 0.5},
 517                 {0.0, 0.5, 0.0, 0.5},
 518                 {0.0, 0.0, 0.5, 0.5},
 519                 {0.0, 0.0, 0.0, 1.0}
 520         }
 521 };
 522
 523 matrix4x4_t matrix_attenuationz =
 524 {
 525         {
 526                 {0.0, 0.0, 0.5, 0.5},
 527                 {0.0, 0.0, 0.0, 0.5},
 528                 {0.0, 0.0, 0.0, 0.5},
 529                 {0.0, 0.0, 0.0, 1.0}
 530         }
 531 };
 532
 533 void R_Shadow_ResizeShadowArrays(int numvertices, int numtriangles)
 534 {
 535         // make sure shadowelements is big enough for this volume
 536         if (maxshadowtriangles < numtriangles)
 537         {
 538                 maxshadowtriangles = numtriangles;
 539                 if (shadowelements)
 540                         Mem_Free(shadowelements);
 541                 shadowelements = (int *)Mem_Alloc(r_main_mempool, maxshadowtriangles * sizeof(int[24]));
 542         }
 543         // make sure shadowvertex3f is big enough for this volume
 544         if (maxshadowvertices < numvertices)
 545         {
 546                 maxshadowvertices = numvertices;
 547                 if (shadowvertex3f)
 548                         Mem_Free(shadowvertex3f);
 549                 shadowvertex3f = (float *)Mem_Alloc(r_main_mempool, maxshadowvertices * sizeof(float[6]));
 550         }
 551 }
 552
 553 static void R_Shadow_EnlargeLeafSurfaceTrisBuffer(int numleafs, int numsurfaces, int numshadowtriangles, int numlighttriangles)
 554 {
 555         int numleafpvsbytes = (((numleafs + 7) >> 3) + 255) & ~255;
 556         int numsurfacepvsbytes = (((numsurfaces + 7) >> 3) + 255) & ~255;
 557         int numshadowtrispvsbytes = (((numshadowtriangles + 7) >> 3) + 255) & ~255;
 558         int numlighttrispvsbytes = (((numlighttriangles + 7) >> 3) + 255) & ~255;
 559         if (r_shadow_buffer_numleafpvsbytes < numleafpvsbytes)
 560         {
 561                 if (r_shadow_buffer_visitingleafpvs)
 562                         Mem_Free(r_shadow_buffer_visitingleafpvs);
 563                 if (r_shadow_buffer_leafpvs)
 564                         Mem_Free(r_shadow_buffer_leafpvs);
 565                 if (r_shadow_buffer_leaflist)
 566                         Mem_Free(r_shadow_buffer_leaflist);
 567                 r_shadow_buffer_numleafpvsbytes = numleafpvsbytes;
 568                 r_shadow_buffer_visitingleafpvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numleafpvsbytes);
 569                 r_shadow_buffer_leafpvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numleafpvsbytes);
 570                 r_shadow_buffer_leaflist = (int *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numleafpvsbytes * 8 * sizeof(*r_shadow_buffer_leaflist));
 571         }
 572         if (r_shadow_buffer_numsurfacepvsbytes < numsurfacepvsbytes)
 573         {
 574                 if (r_shadow_buffer_surfacepvs)
 575                         Mem_Free(r_shadow_buffer_surfacepvs);
 576                 if (r_shadow_buffer_surfacelist)
 577                         Mem_Free(r_shadow_buffer_surfacelist);
 578                 r_shadow_buffer_numsurfacepvsbytes = numsurfacepvsbytes;
 579                 r_shadow_buffer_surfacepvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numsurfacepvsbytes);
 580                 r_shadow_buffer_surfacelist = (int *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numsurfacepvsbytes * 8 * sizeof(*r_shadow_buffer_surfacelist));
 581         }
 582         if (r_shadow_buffer_numshadowtrispvsbytes < numshadowtrispvsbytes)
 583         {
 584                 if (r_shadow_buffer_shadowtrispvs)
 585                         Mem_Free(r_shadow_buffer_shadowtrispvs);
 586                 r_shadow_buffer_numshadowtrispvsbytes = numshadowtrispvsbytes;
 587                 r_shadow_buffer_shadowtrispvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numshadowtrispvsbytes);
 588         }
 589         if (r_shadow_buffer_numlighttrispvsbytes < numlighttrispvsbytes)
 590         {
 591                 if (r_shadow_buffer_lighttrispvs)
 592                         Mem_Free(r_shadow_buffer_lighttrispvs);
 593                 r_shadow_buffer_numlighttrispvsbytes = numlighttrispvsbytes;
 594                 r_shadow_buffer_lighttrispvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numlighttrispvsbytes);
 595         }
 596 }
 597
 598 void R_Shadow_PrepareShadowMark(int numtris)
 599 {
 600         // make sure shadowmark is big enough for this volume
 601         if (maxshadowmark < numtris)
 602         {
 603                 maxshadowmark = numtris;
 604                 if (shadowmark)
 605                         Mem_Free(shadowmark);
 606                 if (shadowmarklist)
 607                         Mem_Free(shadowmarklist);
 608                 shadowmark = (int *)Mem_Alloc(r_main_mempool, maxshadowmark * sizeof(*shadowmark));
 609                 shadowmarklist = (int *)Mem_Alloc(r_main_mempool, maxshadowmark * sizeof(*shadowmarklist));
 610                 shadowmarkcount = 0;
 611         }
 612         shadowmarkcount++;
 613         // if shadowmarkcount wrapped we clear the array and adjust accordingly
 614         if (shadowmarkcount == 0)
 615         {
 616                 shadowmarkcount = 1;
 617                 memset(shadowmark, 0, maxshadowmark * sizeof(*shadowmark));
 618         }
 619         numshadowmark = 0;
 620 }
 621
 622 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)
 623 {
 624         int i, j;
 625         int outtriangles = 0, outvertices = 0;
 626         const int *element;
 627         const float *vertex;
 628         float ratio, direction[3], projectvector[3];
 629
 630         if (projectdirection)
 631                 VectorScale(projectdirection, projectdistance, projectvector);
 632         else
 633                 VectorClear(projectvector);
 634
 635         // create the vertices
 636         if (projectdirection)
 637         {
 638                 for (i = 0;i < numshadowmarktris;i++)
 639                 {
 640                         element = inelement3i + shadowmarktris[i] * 3;
 641                         for (j = 0;j < 3;j++)
 642                         {
 643                                 if (vertexupdate[element[j]] != vertexupdatenum)
 644                                 {
 645                                         vertexupdate[element[j]] = vertexupdatenum;
 646                                         vertexremap[element[j]] = outvertices;
 647                                         vertex = invertex3f + element[j] * 3;
 648                                         // project one copy of the vertex according to projectvector
 649                                         VectorCopy(vertex, outvertex3f);
 650                                         VectorAdd(vertex, projectvector, (outvertex3f + 3));
 651                                         outvertex3f += 6;
 652                                         outvertices += 2;
 653                                 }
 654                         }
 655                 }
 656         }
 657         else
 658         {
 659                 for (i = 0;i < numshadowmarktris;i++)
 660                 {
 661                         element = inelement3i + shadowmarktris[i] * 3;
 662                         for (j = 0;j < 3;j++)
 663                         {
 664                                 if (vertexupdate[element[j]] != vertexupdatenum)
 665                                 {
 666                                         vertexupdate[element[j]] = vertexupdatenum;
 667                                         vertexremap[element[j]] = outvertices;
 668                                         vertex = invertex3f + element[j] * 3;
 669                                         // project one copy of the vertex to the sphere radius of the light
 670                                         // (FIXME: would projecting it to the light box be better?)
 671                                         VectorSubtract(vertex, projectorigin, direction);
 672                                         ratio = projectdistance / VectorLength(direction);
 673                                         VectorCopy(vertex, outvertex3f);
 674                                         VectorMA(projectorigin, ratio, direction, (outvertex3f + 3));
 675                                         outvertex3f += 6;
 676                                         outvertices += 2;
 677                                 }
 678                         }
 679                 }
 680         }
 681
 682         if (r_shadow_frontsidecasting.integer)
 683         {
 684                 for (i = 0;i < numshadowmarktris;i++)
 685                 {
 686                         int remappedelement[3];
 687                         int markindex;
 688                         const int *neighbortriangle;
 689
 690                         markindex = shadowmarktris[i] * 3;
 691                         element = inelement3i + markindex;
 692                         neighbortriangle = inneighbor3i + markindex;
 693                         // output the front and back triangles
 694                         outelement3i[0] = vertexremap[element[0]];
 695                         outelement3i[1] = vertexremap[element[1]];
 696                         outelement3i[2] = vertexremap[element[2]];
 697                         outelement3i[3] = vertexremap[element[2]] + 1;
 698                         outelement3i[4] = vertexremap[element[1]] + 1;
 699                         outelement3i[5] = vertexremap[element[0]] + 1;
 700
 701                         outelement3i += 6;
 702                         outtriangles += 2;
 703                         // output the sides (facing outward from this triangle)
 704                         if (shadowmark[neighbortriangle[0]] != shadowmarkcount)
 705                         {
 706                                 remappedelement[0] = vertexremap[element[0]];
 707                                 remappedelement[1] = vertexremap[element[1]];
 708                                 outelement3i[0] = remappedelement[1];
 709                                 outelement3i[1] = remappedelement[0];
 710                                 outelement3i[2] = remappedelement[0] + 1;
 711                                 outelement3i[3] = remappedelement[1];
 712                                 outelement3i[4] = remappedelement[0] + 1;
 713                                 outelement3i[5] = remappedelement[1] + 1;
 714
 715                                 outelement3i += 6;
 716                                 outtriangles += 2;
 717                         }
 718                         if (shadowmark[neighbortriangle[1]] != shadowmarkcount)
 719                         {
 720                                 remappedelement[1] = vertexremap[element[1]];
 721                                 remappedelement[2] = vertexremap[element[2]];
 722                                 outelement3i[0] = remappedelement[2];
 723                                 outelement3i[1] = remappedelement[1];
 724                                 outelement3i[2] = remappedelement[1] + 1;
 725                                 outelement3i[3] = remappedelement[2];
 726                                 outelement3i[4] = remappedelement[1] + 1;
 727                                 outelement3i[5] = remappedelement[2] + 1;
 728
 729                                 outelement3i += 6;
 730                                 outtriangles += 2;
 731                         }
 732                         if (shadowmark[neighbortriangle[2]] != shadowmarkcount)
 733                         {
 734                                 remappedelement[0] = vertexremap[element[0]];
 735                                 remappedelement[2] = vertexremap[element[2]];
 736                                 outelement3i[0] = remappedelement[0];
 737                                 outelement3i[1] = remappedelement[2];
 738                                 outelement3i[2] = remappedelement[2] + 1;
 739                                 outelement3i[3] = remappedelement[0];
 740                                 outelement3i[4] = remappedelement[2] + 1;
 741                                 outelement3i[5] = remappedelement[0] + 1;
 742
 743                                 outelement3i += 6;
 744                                 outtriangles += 2;
 745                         }
 746                 }
 747         }
 748         else
 749         {
 750                 for (i = 0;i < numshadowmarktris;i++)
 751                 {
 752                         int remappedelement[3];
 753                         int markindex;
 754                         const int *neighbortriangle;
 755
 756                         markindex = shadowmarktris[i] * 3;
 757                         element = inelement3i + markindex;
 758                         neighbortriangle = inneighbor3i + markindex;
 759                         // output the front and back triangles
 760                         outelement3i[0] = vertexremap[element[2]];
 761                         outelement3i[1] = vertexremap[element[1]];
 762                         outelement3i[2] = vertexremap[element[0]];
 763                         outelement3i[3] = vertexremap[element[0]] + 1;
 764                         outelement3i[4] = vertexremap[element[1]] + 1;
 765                         outelement3i[5] = vertexremap[element[2]] + 1;
 766
 767                         outelement3i += 6;
 768                         outtriangles += 2;
 769                         // output the sides (facing outward from this triangle)
 770                         if (shadowmark[neighbortriangle[0]] != shadowmarkcount)
 771                         {
 772                                 remappedelement[0] = vertexremap[element[0]];
 773                                 remappedelement[1] = vertexremap[element[1]];
 774                                 outelement3i[0] = remappedelement[0];
 775                                 outelement3i[1] = remappedelement[1];
 776                                 outelement3i[2] = remappedelement[1] + 1;
 777                                 outelement3i[3] = remappedelement[0];
 778                                 outelement3i[4] = remappedelement[1] + 1;
 779                                 outelement3i[5] = remappedelement[0] + 1;
 780
 781                                 outelement3i += 6;
 782                                 outtriangles += 2;
 783                         }
 784                         if (shadowmark[neighbortriangle[1]] != shadowmarkcount)
 785                         {
 786                                 remappedelement[1] = vertexremap[element[1]];
 787                                 remappedelement[2] = vertexremap[element[2]];
 788                                 outelement3i[0] = remappedelement[1];
 789                                 outelement3i[1] = remappedelement[2];
 790                                 outelement3i[2] = remappedelement[2] + 1;
 791                                 outelement3i[3] = remappedelement[1];
 792                                 outelement3i[4] = remappedelement[2] + 1;
 793                                 outelement3i[5] = remappedelement[1] + 1;
 794
 795                                 outelement3i += 6;
 796                                 outtriangles += 2;
 797                         }
 798                         if (shadowmark[neighbortriangle[2]] != shadowmarkcount)
 799                         {
 800                                 remappedelement[0] = vertexremap[element[0]];
 801                                 remappedelement[2] = vertexremap[element[2]];
 802                                 outelement3i[0] = remappedelement[2];
 803                                 outelement3i[1] = remappedelement[0];
 804                                 outelement3i[2] = remappedelement[0] + 1;
 805                                 outelement3i[3] = remappedelement[2];
 806                                 outelement3i[4] = remappedelement[0] + 1;
 807                                 outelement3i[5] = remappedelement[2] + 1;
 808
 809                                 outelement3i += 6;
 810                                 outtriangles += 2;
 811                         }
 812                 }
 813         }
 814         if (outnumvertices)
 815                 *outnumvertices = outvertices;
 816         return outtriangles;
 817 }
 818
 819 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)
 820 {
 821         int i, j, k;
 822         int outtriangles = 0, outvertices = 0;
 823         const int *element;
 824         const float *vertex;
 825         float ratio, direction[3], projectvector[3];
 826         qboolean side[4];
 827
 828         if (projectdirection)
 829                 VectorScale(projectdirection, projectdistance, projectvector);
 830         else
 831                 VectorClear(projectvector);
 832
 833         for (i = 0;i < numshadowmarktris;i++)
 834         {
 835                 int remappedelement[3];
 836                 int markindex;
 837                 const int *neighbortriangle;
 838
 839                 markindex = shadowmarktris[i] * 3;
 840                 neighbortriangle = inneighbor3i + markindex;
 841                 side[0] = shadowmark[neighbortriangle[0]] == shadowmarkcount;
 842                 side[1] = shadowmark[neighbortriangle[1]] == shadowmarkcount;
 843                 side[2] = shadowmark[neighbortriangle[2]] == shadowmarkcount;
 844                 if (side[0] + side[1] + side[2] == 0)
 845                         continue;
 846
 847                 side[3] = side[0];
 848                 element = inelement3i + markindex;
 849
 850                 // create the vertices
 851                 for (j = 0;j < 3;j++)
 852                 {
 853                         if (side[j] + side[j+1] == 0)
 854                                 continue;
 855                         k = element[j];
 856                         if (vertexupdate[k] != vertexupdatenum)
 857                         {
 858                                 vertexupdate[k] = vertexupdatenum;
 859                                 vertexremap[k] = outvertices;
 860                                 vertex = invertex3f + k * 3;
 861                                 VectorCopy(vertex, outvertex3f);
 862                                 if (projectdirection)
 863                                 {
 864                                         // project one copy of the vertex according to projectvector
 865                                         VectorAdd(vertex, projectvector, (outvertex3f + 3));
 866                                 }
 867                                 else
 868                                 {
 869                                         // project one copy of the vertex to the sphere radius of the light
 870                                         // (FIXME: would projecting it to the light box be better?)
 871                                         VectorSubtract(vertex, projectorigin, direction);
 872                                         ratio = projectdistance / VectorLength(direction);
 873                                         VectorMA(projectorigin, ratio, direction, (outvertex3f + 3));
 874                                 }
 875                                 outvertex3f += 6;
 876                                 outvertices += 2;
 877                         }
 878                 }
 879
 880                 // output the sides (facing outward from this triangle)
 881                 if (!side[0])
 882                 {
 883                         remappedelement[0] = vertexremap[element[0]];
 884                         remappedelement[1] = vertexremap[element[1]];
 885                         outelement3i[0] = remappedelement[1];
 886                         outelement3i[1] = remappedelement[0];
 887                         outelement3i[2] = remappedelement[0] + 1;
 888                         outelement3i[3] = remappedelement[1];
 889                         outelement3i[4] = remappedelement[0] + 1;
 890                         outelement3i[5] = remappedelement[1] + 1;
 891
 892                         outelement3i += 6;
 893                         outtriangles += 2;
 894                 }
 895                 if (!side[1])
 896                 {
 897                         remappedelement[1] = vertexremap[element[1]];
 898                         remappedelement[2] = vertexremap[element[2]];
 899                         outelement3i[0] = remappedelement[2];
 900                         outelement3i[1] = remappedelement[1];
 901                         outelement3i[2] = remappedelement[1] + 1;
 902                         outelement3i[3] = remappedelement[2];
 903                         outelement3i[4] = remappedelement[1] + 1;
 904                         outelement3i[5] = remappedelement[2] + 1;
 905
 906                         outelement3i += 6;
 907                         outtriangles += 2;
 908                 }
 909                 if (!side[2])
 910                 {
 911                         remappedelement[0] = vertexremap[element[0]];
 912                         remappedelement[2] = vertexremap[element[2]];
 913                         outelement3i[0] = remappedelement[0];
 914                         outelement3i[1] = remappedelement[2];
 915                         outelement3i[2] = remappedelement[2] + 1;
 916                         outelement3i[3] = remappedelement[0];
 917                         outelement3i[4] = remappedelement[2] + 1;
 918                         outelement3i[5] = remappedelement[0] + 1;
 919
 920                         outelement3i += 6;
 921                         outtriangles += 2;
 922                 }
 923         }
 924         if (outnumvertices)
 925                 *outnumvertices = outvertices;
 926         return outtriangles;
 927 }
 928
 929 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)
 930 {
 931         int t, tend;
 932         const int *e;
 933         const float *v[3];
 934         float normal[3];
 935         if (!BoxesOverlap(lightmins, lightmaxs, surfacemins, surfacemaxs))
 936                 return;
 937         tend = firsttriangle + numtris;
 938         if (BoxInsideBox(surfacemins, surfacemaxs, lightmins, lightmaxs))
 939         {
 940                 // surface box entirely inside light box, no box cull
 941                 if (projectdirection)
 942                 {
 943                         for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
 944                         {
 945                                 TriangleNormal(invertex3f + e[0] * 3, invertex3f + e[1] * 3, invertex3f + e[2] * 3, normal);
 946                                 if (r_shadow_frontsidecasting.integer == (DotProduct(normal, projectdirection) < 0))
 947                                         shadowmarklist[numshadowmark++] = t;
 948                         }
 949                 }
 950                 else
 951                 {
 952                         for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
 953                                 if (r_shadow_frontsidecasting.integer == PointInfrontOfTriangle(projectorigin, invertex3f + e[0] * 3, invertex3f + e[1] * 3, invertex3f + e[2] * 3))
 954                                         shadowmarklist[numshadowmark++] = t;
 955                 }
 956         }
 957         else
 958         {
 959                 // surface box not entirely inside light box, cull each triangle
 960                 if (projectdirection)
 961                 {
 962                         for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
 963                         {
 964                                 v[0] = invertex3f + e[0] * 3;
 965                                 v[1] = invertex3f + e[1] * 3;
 966                                 v[2] = invertex3f + e[2] * 3;
 967                                 TriangleNormal(v[0], v[1], v[2], normal);
 968                                 if (r_shadow_frontsidecasting.integer == (DotProduct(normal, projectdirection) < 0)
 969                                  && TriangleOverlapsBox(v[0], v[1], v[2], lightmins, lightmaxs))
 970                                         shadowmarklist[numshadowmark++] = t;
 971                         }
 972                 }
 973                 else
 974                 {
 975                         for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
 976                         {
 977                                 v[0] = invertex3f + e[0] * 3;
 978                                 v[1] = invertex3f + e[1] * 3;
 979                                 v[2] = invertex3f + e[2] * 3;
 980                                 if (r_shadow_frontsidecasting.integer == PointInfrontOfTriangle(projectorigin, v[0], v[1], v[2])
 981                                  && TriangleOverlapsBox(v[0], v[1], v[2], lightmins, lightmaxs))
 982                                         shadowmarklist[numshadowmark++] = t;
 983                         }
 984                 }
 985         }
 986 }
 987
 988 qboolean R_Shadow_UseZPass(vec3_t mins, vec3_t maxs)
 989 {
 990 #if 1
 991         return false;
 992 #else
 993         if (r_shadow_compilingrtlight || !r_shadow_frontsidecasting.integer || !r_shadow_usezpassifpossible.integer)
 994                 return false;
 995         // check if the shadow volume intersects the near plane
 996         //
 997         // a ray between the eye and light origin may intersect the caster,
 998         // indicating that the shadow may touch the eye location, however we must
 999         // test the near plane (a polygon), not merely the eye location, so it is
1000         // easiest to enlarge the caster bounding shape slightly for this.
1001         // TODO
1002         return true;
1003 #endif
1004 }
1005
1006 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)
1007 {
1008         int i, tris, outverts;
1009         if (projectdistance < 0.1)
1010         {
1011                 Con_Printf("R_Shadow_Volume: projectdistance %f\n", projectdistance);
1012                 return;
1013         }
1014         if (!numverts || !nummarktris)
1015                 return;
1016         // make sure shadowelements is big enough for this volume
1017         if (maxshadowtriangles < nummarktris || maxshadowvertices < numverts)
1018                 R_Shadow_ResizeShadowArrays((numverts + 255) & ~255, (nummarktris + 255) & ~255);
1019
1020         if (maxvertexupdate < numverts)
1021         {
1022                 maxvertexupdate = numverts;
1023                 if (vertexupdate)
1024                         Mem_Free(vertexupdate);
1025                 if (vertexremap)
1026                         Mem_Free(vertexremap);
1027                 vertexupdate = (int *)Mem_Alloc(r_main_mempool, maxvertexupdate * sizeof(int));
1028                 vertexremap = (int *)Mem_Alloc(r_main_mempool, maxvertexupdate * sizeof(int));
1029                 vertexupdatenum = 0;
1030         }
1031         vertexupdatenum++;
1032         if (vertexupdatenum == 0)
1033         {
1034                 vertexupdatenum = 1;
1035                 memset(vertexupdate, 0, maxvertexupdate * sizeof(int));
1036                 memset(vertexremap, 0, maxvertexupdate * sizeof(int));
1037         }
1038
1039         for (i = 0;i < nummarktris;i++)
1040                 shadowmark[marktris[i]] = shadowmarkcount;
1041
1042         if (r_shadow_compilingrtlight)
1043         {
1044                 // if we're compiling an rtlight, capture the mesh
1045                 //tris = R_Shadow_ConstructShadowVolume_ZPass(numverts, numtris, elements, neighbors, invertex3f, &outverts, shadowelements, shadowvertex3f, projectorigin, projectdirection, projectdistance, nummarktris, marktris);
1046                 //Mod_ShadowMesh_AddMesh(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_zpass, NULL, NULL, NULL, shadowvertex3f, NULL, NULL, NULL, NULL, tris, shadowelements);
1047                 tris = R_Shadow_ConstructShadowVolume_ZFail(numverts, numtris, elements, neighbors, invertex3f, &outverts, shadowelements, shadowvertex3f, projectorigin, projectdirection, projectdistance, nummarktris, marktris);
1048                 Mod_ShadowMesh_AddMesh(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_zfail, NULL, NULL, NULL, shadowvertex3f, NULL, NULL, NULL, NULL, tris, shadowelements);
1049         }
1050         else
1051         {
1052                 // decide which type of shadow to generate and set stencil mode
1053                 R_Shadow_RenderMode_StencilShadowVolumes(R_Shadow_UseZPass(trismins, trismaxs));
1054                 // generate the sides or a solid volume, depending on type
1055                 if (r_shadow_rendermode >= R_SHADOW_RENDERMODE_ZPASS_STENCIL && r_shadow_rendermode <= R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE)
1056                         tris = R_Shadow_ConstructShadowVolume_ZPass(numverts, numtris, elements, neighbors, invertex3f, &outverts, shadowelements, shadowvertex3f, projectorigin, projectdirection, projectdistance, nummarktris, marktris);
1057                 else
1058                         tris = R_Shadow_ConstructShadowVolume_ZFail(numverts, numtris, elements, neighbors, invertex3f, &outverts, shadowelements, shadowvertex3f, projectorigin, projectdirection, projectdistance, nummarktris, marktris);
1059                 r_refdef.stats.lights_dynamicshadowtriangles += tris;
1060                 r_refdef.stats.lights_shadowtriangles += tris;
1061                 CHECKGLERROR
1062                 R_Mesh_VertexPointer(shadowvertex3f, 0, 0);
1063                 GL_LockArrays(0, outverts);
1064                 if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZPASS_STENCIL)
1065                 {
1066                         // increment stencil if frontface is infront of depthbuffer
1067                         GL_CullFace(r_refdef.view.cullface_front);
1068                         qglStencilOp(GL_KEEP, GL_KEEP, GL_DECR);CHECKGLERROR
1069                         R_Mesh_Draw(0, outverts, 0, tris, shadowelements, NULL, 0, 0);
1070                         // decrement stencil if backface is infront of depthbuffer
1071                         GL_CullFace(r_refdef.view.cullface_back);
1072                         qglStencilOp(GL_KEEP, GL_KEEP, GL_INCR);CHECKGLERROR
1073                 }
1074                 else if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZFAIL_STENCIL)
1075                 {
1076                         // decrement stencil if backface is behind depthbuffer
1077                         GL_CullFace(r_refdef.view.cullface_front);
1078                         qglStencilOp(GL_KEEP, GL_DECR, GL_KEEP);CHECKGLERROR
1079                         R_Mesh_Draw(0, outverts, 0, tris, shadowelements, NULL, 0, 0);
1080                         // increment stencil if frontface is behind depthbuffer
1081                         GL_CullFace(r_refdef.view.cullface_back);
1082                         qglStencilOp(GL_KEEP, GL_INCR, GL_KEEP);CHECKGLERROR
1083                 }
1084                 R_Mesh_Draw(0, outverts, 0, tris, shadowelements, NULL, 0, 0);
1085                 GL_LockArrays(0, 0);
1086                 CHECKGLERROR
1087         }
1088 }
1089
1090 static void R_Shadow_MakeTextures_MakeCorona(void)
1091 {
1092         float dx, dy;
1093         int x, y, a;
1094         unsigned char pixels[32][32][4];
1095         for (y = 0;y < 32;y++)
1096         {
1097                 dy = (y - 15.5f) * (1.0f / 16.0f);
1098                 for (x = 0;x < 32;x++)
1099                 {
1100                         dx = (x - 15.5f) * (1.0f / 16.0f);
1101                         a = (int)(((1.0f / (dx * dx + dy * dy + 0.2f)) - (1.0f / (1.0f + 0.2))) * 32.0f / (1.0f / (1.0f + 0.2)));
1102                         a = bound(0, a, 255);
1103                         pixels[y][x][0] = a;
1104                         pixels[y][x][1] = a;
1105                         pixels[y][x][2] = a;
1106                         pixels[y][x][3] = 255;
1107                 }
1108         }
1109         r_shadow_lightcorona = R_LoadTexture2D(r_shadow_texturepool, "lightcorona", 32, 32, &pixels[0][0][0], TEXTYPE_BGRA, TEXF_PRECACHE | TEXF_FORCELINEAR, NULL);
1110 }
1111
1112 static unsigned int R_Shadow_MakeTextures_SamplePoint(float x, float y, float z)
1113 {
1114         float dist = sqrt(x*x+y*y+z*z);
1115         float intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
1116         // note this code could suffer byte order issues except that it is multiplying by an integer that reads the same both ways
1117         return (unsigned char)bound(0, intensity * 256.0f, 255) * 0x01010101;
1118 }
1119
1120 static void R_Shadow_MakeTextures(void)
1121 {
1122         int x, y, z;
1123         float intensity, dist;
1124         unsigned int *data;
1125         R_FreeTexturePool(&r_shadow_texturepool);
1126         r_shadow_texturepool = R_AllocTexturePool();
1127         r_shadow_attenlinearscale = r_shadow_lightattenuationlinearscale.value;
1128         r_shadow_attendividebias = r_shadow_lightattenuationdividebias.value;
1129         data = (unsigned int *)Mem_Alloc(tempmempool, max(max(ATTEN3DSIZE*ATTEN3DSIZE*ATTEN3DSIZE, ATTEN2DSIZE*ATTEN2DSIZE), ATTEN1DSIZE) * 4);
1130         // the table includes one additional value to avoid the need to clamp indexing due to minor math errors
1131         for (x = 0;x <= ATTENTABLESIZE;x++)
1132         {
1133                 dist = (x + 0.5f) * (1.0f / ATTENTABLESIZE) * (1.0f / 0.9375);
1134                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
1135                 r_shadow_attentable[x] = bound(0, intensity, 1);
1136         }
1137         // 1D gradient texture
1138         for (x = 0;x < ATTEN1DSIZE;x++)
1139                 data[x] = R_Shadow_MakeTextures_SamplePoint((x + 0.5f) * (1.0f / ATTEN1DSIZE) * (1.0f / 0.9375), 0, 0);
1140         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);
1141         // 2D circle texture
1142         for (y = 0;y < ATTEN2DSIZE;y++)
1143                 for (x = 0;x < ATTEN2DSIZE;x++)
1144                         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);
1145         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);
1146         // 3D sphere texture
1147         if (r_shadow_texture3d.integer && gl_texture3d)
1148         {
1149                 for (z = 0;z < ATTEN3DSIZE;z++)
1150                         for (y = 0;y < ATTEN3DSIZE;y++)
1151                                 for (x = 0;x < ATTEN3DSIZE;x++)
1152                                         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));
1153                 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);
1154         }
1155         else
1156                 r_shadow_attenuation3dtexture = NULL;
1157         Mem_Free(data);
1158
1159         R_Shadow_MakeTextures_MakeCorona();
1160
1161         // Editor light sprites
1162         r_editlights_sprcursor = Draw_CachePic ("gfx/editlights/cursor");
1163         r_editlights_sprlight = Draw_CachePic ("gfx/editlights/light");
1164         r_editlights_sprnoshadowlight = Draw_CachePic ("gfx/editlights/noshadow");
1165         r_editlights_sprcubemaplight = Draw_CachePic ("gfx/editlights/cubemaplight");
1166         r_editlights_sprcubemapnoshadowlight = Draw_CachePic ("gfx/editlights/cubemapnoshadowlight");
1167         r_editlights_sprselection = Draw_CachePic ("gfx/editlights/selection");
1168 }
1169
1170 void R_Shadow_ValidateCvars(void)
1171 {
1172         if (r_shadow_texture3d.integer && !gl_texture3d)
1173                 Cvar_SetValueQuick(&r_shadow_texture3d, 0);
1174         if (gl_ext_separatestencil.integer && !gl_support_separatestencil)
1175                 Cvar_SetValueQuick(&gl_ext_separatestencil, 0);
1176         if (gl_ext_stenciltwoside.integer && !gl_support_stenciltwoside)
1177                 Cvar_SetValueQuick(&gl_ext_stenciltwoside, 0);
1178 }
1179
1180 void R_Shadow_RenderMode_Begin(void)
1181 {
1182         R_Shadow_ValidateCvars();
1183
1184         if (!r_shadow_attenuation2dtexture
1185          || (!r_shadow_attenuation3dtexture && r_shadow_texture3d.integer)
1186          || r_shadow_lightattenuationdividebias.value != r_shadow_attendividebias
1187          || r_shadow_lightattenuationlinearscale.value != r_shadow_attenlinearscale)
1188                 R_Shadow_MakeTextures();
1189
1190         CHECKGLERROR
1191         R_Mesh_ColorPointer(NULL, 0, 0);
1192         R_Mesh_ResetTextureState();
1193         GL_BlendFunc(GL_ONE, GL_ZERO);
1194         GL_DepthRange(0, 1);
1195         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
1196         GL_DepthTest(true);
1197         GL_DepthMask(false);
1198         GL_Color(0, 0, 0, 1);
1199         GL_Scissor(r_refdef.view.x, r_refdef.view.y, r_refdef.view.width, r_refdef.view.height);
1200
1201         r_shadow_rendermode = R_SHADOW_RENDERMODE_NONE;
1202
1203         if (gl_ext_separatestencil.integer)
1204         {
1205                 r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_ZPASS_SEPARATESTENCIL;
1206                 r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_ZFAIL_SEPARATESTENCIL;
1207         }
1208         else if (gl_ext_stenciltwoside.integer)
1209         {
1210                 r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE;
1211                 r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_ZFAIL_STENCILTWOSIDE;
1212         }
1213         else
1214         {
1215                 r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_ZPASS_STENCIL;
1216                 r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_ZFAIL_STENCIL;
1217         }
1218
1219         if (r_glsl.integer && gl_support_fragment_shader)
1220                 r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_GLSL;
1221         else if (gl_dot3arb && gl_texturecubemap && r_textureunits.integer >= 2 && gl_combine.integer && gl_stencil)
1222                 r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_DOT3;
1223         else
1224                 r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_VERTEX;
1225 }
1226
1227 void R_Shadow_RenderMode_ActiveLight(const rtlight_t *rtlight)
1228 {
1229         rsurface.rtlight = rtlight;
1230 }
1231
1232 void R_Shadow_RenderMode_Reset(void)
1233 {
1234         CHECKGLERROR
1235         if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE || r_shadow_rendermode == R_SHADOW_RENDERMODE_ZFAIL_STENCILTWOSIDE)
1236         {
1237                 qglDisable(GL_STENCIL_TEST_TWO_SIDE_EXT);CHECKGLERROR
1238         }
1239         R_Mesh_ColorPointer(NULL, 0, 0);
1240         R_Mesh_ResetTextureState();
1241         GL_DepthRange(0, 1);
1242         GL_DepthTest(true);
1243         GL_DepthMask(false);
1244         qglDepthFunc(GL_LEQUAL);CHECKGLERROR
1245         GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);CHECKGLERROR
1246         qglDisable(GL_STENCIL_TEST);CHECKGLERROR
1247         qglStencilMask(~0);CHECKGLERROR
1248         qglStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);CHECKGLERROR
1249         qglStencilFunc(GL_ALWAYS, 128, ~0);CHECKGLERROR
1250         GL_CullFace(r_refdef.view.cullface_back);
1251         GL_Color(1, 1, 1, 1);
1252         GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
1253         GL_BlendFunc(GL_ONE, GL_ZERO);
1254         R_SetupGenericShader(false);
1255 }
1256
1257 void R_Shadow_ClearStencil(void)
1258 {
1259         CHECKGLERROR
1260         GL_Clear(GL_STENCIL_BUFFER_BIT);
1261         r_refdef.stats.lights_clears++;
1262 }
1263
1264 void R_Shadow_RenderMode_StencilShadowVolumes(qboolean zpass)
1265 {
1266         r_shadow_rendermode_t mode = zpass ? r_shadow_shadowingrendermode_zpass : r_shadow_shadowingrendermode_zfail;
1267         if (r_shadow_rendermode == mode)
1268                 return;
1269         CHECKGLERROR
1270         R_Shadow_RenderMode_Reset();
1271         GL_ColorMask(0, 0, 0, 0);
1272         GL_PolygonOffset(r_refdef.shadowpolygonfactor, r_refdef.shadowpolygonoffset);CHECKGLERROR
1273         R_SetupDepthOrShadowShader();
1274         qglDepthFunc(GL_LESS);CHECKGLERROR
1275         qglEnable(GL_STENCIL_TEST);CHECKGLERROR
1276         r_shadow_rendermode = mode;
1277         switch(mode)
1278         {
1279         default:
1280                 break;
1281         case R_SHADOW_RENDERMODE_ZPASS_SEPARATESTENCIL:
1282                 GL_CullFace(GL_NONE);
1283                 qglStencilOpSeparate(r_refdef.view.cullface_front, GL_KEEP, GL_KEEP, GL_INCR);CHECKGLERROR
1284                 qglStencilOpSeparate(r_refdef.view.cullface_back, GL_KEEP, GL_KEEP, GL_DECR);CHECKGLERROR
1285                 break;
1286         case R_SHADOW_RENDERMODE_ZFAIL_SEPARATESTENCIL:
1287                 GL_CullFace(GL_NONE);
1288                 qglStencilOpSeparate(r_refdef.view.cullface_front, GL_KEEP, GL_INCR, GL_KEEP);CHECKGLERROR
1289                 qglStencilOpSeparate(r_refdef.view.cullface_back, GL_KEEP, GL_DECR, GL_KEEP);CHECKGLERROR
1290                 break;
1291         case R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE:
1292                 GL_CullFace(GL_NONE);
1293                 qglEnable(GL_STENCIL_TEST_TWO_SIDE_EXT);CHECKGLERROR
1294                 qglActiveStencilFaceEXT(r_refdef.view.cullface_front);CHECKGLERROR
1295                 qglStencilMask(~0);CHECKGLERROR
1296                 qglStencilOp(GL_KEEP, GL_KEEP, GL_INCR);CHECKGLERROR
1297                 qglActiveStencilFaceEXT(r_refdef.view.cullface_back);CHECKGLERROR
1298                 qglStencilMask(~0);CHECKGLERROR
1299                 qglStencilOp(GL_KEEP, GL_KEEP, GL_DECR);CHECKGLERROR
1300                 break;
1301         case R_SHADOW_RENDERMODE_ZFAIL_STENCILTWOSIDE:
1302                 GL_CullFace(GL_NONE);
1303                 qglEnable(GL_STENCIL_TEST_TWO_SIDE_EXT);CHECKGLERROR
1304                 qglActiveStencilFaceEXT(r_refdef.view.cullface_front);CHECKGLERROR
1305                 qglStencilMask(~0);CHECKGLERROR
1306                 qglStencilOp(GL_KEEP, GL_INCR, GL_KEEP);CHECKGLERROR
1307                 qglActiveStencilFaceEXT(r_refdef.view.cullface_back);CHECKGLERROR
1308                 qglStencilMask(~0);CHECKGLERROR
1309                 qglStencilOp(GL_KEEP, GL_DECR, GL_KEEP);CHECKGLERROR
1310                 break;
1311         }
1312 }
1313
1314 void R_Shadow_RenderMode_Lighting(qboolean stenciltest, qboolean transparent)
1315 {
1316         CHECKGLERROR
1317         R_Shadow_RenderMode_Reset();
1318         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1319         if (!transparent)
1320         {
1321                 qglDepthFunc(GL_EQUAL);CHECKGLERROR
1322         }
1323         if (stenciltest)
1324         {
1325                 qglEnable(GL_STENCIL_TEST);CHECKGLERROR
1326                 // only draw light where this geometry was already rendered AND the
1327                 // stencil is 128 (values other than this mean shadow)
1328                 qglStencilFunc(GL_EQUAL, 128, ~0);CHECKGLERROR
1329         }
1330         r_shadow_rendermode = r_shadow_lightingrendermode;
1331         // do global setup needed for the chosen lighting mode
1332         if (r_shadow_rendermode == R_SHADOW_RENDERMODE_LIGHT_GLSL)
1333         {
1334                 R_Mesh_TexBindCubeMap(GL20TU_CUBE, R_GetTexture(rsurface.rtlight->currentcubemap)); // light filter
1335                 GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 0);
1336         }
1337         else if (r_shadow_rendermode == R_SHADOW_RENDERMODE_LIGHT_VERTEX)
1338                 R_Mesh_ColorPointer(rsurface.array_color4f, 0, 0);
1339         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
1340 }
1341
1342 void R_Shadow_RenderMode_VisibleShadowVolumes(void)
1343 {
1344         CHECKGLERROR
1345         R_Shadow_RenderMode_Reset();
1346         GL_BlendFunc(GL_ONE, GL_ONE);
1347         GL_DepthRange(0, 1);
1348         GL_DepthTest(r_showshadowvolumes.integer < 2);
1349         GL_Color(0.0, 0.0125 * r_refdef.view.colorscale, 0.1 * r_refdef.view.colorscale, 1);
1350         GL_PolygonOffset(r_refdef.shadowpolygonfactor, r_refdef.shadowpolygonoffset);CHECKGLERROR
1351         GL_CullFace(GL_NONE);
1352         r_shadow_rendermode = R_SHADOW_RENDERMODE_VISIBLEVOLUMES;
1353 }
1354
1355 void R_Shadow_RenderMode_VisibleLighting(qboolean stenciltest, qboolean transparent)
1356 {
1357         CHECKGLERROR
1358         R_Shadow_RenderMode_Reset();
1359         GL_BlendFunc(GL_ONE, GL_ONE);
1360         GL_DepthRange(0, 1);
1361         GL_DepthTest(r_showlighting.integer < 2);
1362         GL_Color(0.1 * r_refdef.view.colorscale, 0.0125 * r_refdef.view.colorscale, 0, 1);
1363         if (!transparent)
1364         {
1365                 qglDepthFunc(GL_EQUAL);CHECKGLERROR
1366         }
1367         if (stenciltest)
1368         {
1369                 qglEnable(GL_STENCIL_TEST);CHECKGLERROR
1370                 qglStencilFunc(GL_EQUAL, 128, ~0);CHECKGLERROR
1371         }
1372         r_shadow_rendermode = R_SHADOW_RENDERMODE_VISIBLELIGHTING;
1373 }
1374
1375 void R_Shadow_RenderMode_End(void)
1376 {
1377         CHECKGLERROR
1378         R_Shadow_RenderMode_Reset();
1379         R_Shadow_RenderMode_ActiveLight(NULL);
1380         GL_DepthMask(true);
1381         GL_Scissor(r_refdef.view.x, r_refdef.view.y, r_refdef.view.width, r_refdef.view.height);
1382         r_shadow_rendermode = R_SHADOW_RENDERMODE_NONE;
1383 }
1384
1385 int bboxedges[12][2] =
1386 {
1387         // top
1388         {0, 1}, // +X
1389         {0, 2}, // +Y
1390         {1, 3}, // Y, +X
1391         {2, 3}, // X, +Y
1392         // bottom
1393         {4, 5}, // +X
1394         {4, 6}, // +Y
1395         {5, 7}, // Y, +X
1396         {6, 7}, // X, +Y
1397         // verticals
1398         {0, 4}, // +Z
1399         {1, 5}, // X, +Z
1400         {2, 6}, // Y, +Z
1401         {3, 7}, // XY, +Z
1402 };
1403
1404 qboolean R_Shadow_ScissorForBBox(const float *mins, const float *maxs)
1405 {
1406         int i, ix1, iy1, ix2, iy2;
1407         float x1, y1, x2, y2;
1408         vec4_t v, v2;
1409         float vertex[20][3];
1410         int j, k;
1411         vec4_t plane4f;
1412         int numvertices;
1413         float corner[8][4];
1414         float dist[8];
1415         int sign[8];
1416         float f;
1417
1418         if (!r_shadow_scissor.integer)
1419                 return false;
1420
1421         // if view is inside the light box, just say yes it's visible
1422         if (BoxesOverlap(r_refdef.view.origin, r_refdef.view.origin, mins, maxs))
1423         {
1424                 GL_Scissor(r_refdef.view.x, r_refdef.view.y, r_refdef.view.width, r_refdef.view.height);
1425                 return false;
1426         }
1427
1428         x1 = y1 = x2 = y2 = 0;
1429
1430         // transform all corners that are infront of the nearclip plane
1431         VectorNegate(r_refdef.view.frustum[4].normal, plane4f);
1432         plane4f[3] = r_refdef.view.frustum[4].dist;
1433         numvertices = 0;
1434         for (i = 0;i < 8;i++)
1435         {
1436                 Vector4Set(corner[i], (i & 1) ? maxs[0] : mins[0], (i & 2) ? maxs[1] : mins[1], (i & 4) ? maxs[2] : mins[2], 1);
1437                 dist[i] = DotProduct4(corner[i], plane4f);
1438                 sign[i] = dist[i] > 0;
1439                 if (!sign[i])
1440                 {
1441                         VectorCopy(corner[i], vertex[numvertices]);
1442                         numvertices++;
1443                 }
1444         }
1445         // if some points are behind the nearclip, add clipped edge points to make
1446         // sure that the scissor boundary is complete
1447         if (numvertices > 0 && numvertices < 8)
1448         {
1449                 // add clipped edge points
1450                 for (i = 0;i < 12;i++)
1451                 {
1452                         j = bboxedges[i][0];
1453                         k = bboxedges[i][1];
1454                         if (sign[j] != sign[k])
1455                         {
1456                                 f = dist[j] / (dist[j] - dist[k]);
1457                                 VectorLerp(corner[j], f, corner[k], vertex[numvertices]);
1458                                 numvertices++;
1459                         }
1460                 }
1461         }
1462
1463         // if we have no points to check, the light is behind the view plane
1464         if (!numvertices)
1465                 return true;
1466
1467         // if we have some points to transform, check what screen area is covered
1468         x1 = y1 = x2 = y2 = 0;
1469         v[3] = 1.0f;
1470         //Con_Printf("%i vertices to transform...\n", numvertices);
1471         for (i = 0;i < numvertices;i++)
1472         {
1473                 VectorCopy(vertex[i], v);
1474                 GL_TransformToScreen(v, v2);
1475                 //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]);
1476                 if (i)
1477                 {
1478                         if (x1 > v2[0]) x1 = v2[0];
1479                         if (x2 < v2[0]) x2 = v2[0];
1480                         if (y1 > v2[1]) y1 = v2[1];
1481                         if (y2 < v2[1]) y2 = v2[1];
1482                 }
1483                 else
1484                 {
1485                         x1 = x2 = v2[0];
1486                         y1 = y2 = v2[1];
1487                 }
1488         }
1489
1490         // now convert the scissor rectangle to integer screen coordinates
1491         ix1 = (int)(x1 - 1.0f);
1492         iy1 = (int)(y1 - 1.0f);
1493         ix2 = (int)(x2 + 1.0f);
1494         iy2 = (int)(y2 + 1.0f);
1495         //Con_Printf("%f %f %f %f\n", x1, y1, x2, y2);
1496
1497         // clamp it to the screen
1498         if (ix1 < r_refdef.view.x) ix1 = r_refdef.view.x;
1499         if (iy1 < r_refdef.view.y) iy1 = r_refdef.view.y;
1500         if (ix2 > r_refdef.view.x + r_refdef.view.width) ix2 = r_refdef.view.x + r_refdef.view.width;
1501         if (iy2 > r_refdef.view.y + r_refdef.view.height) iy2 = r_refdef.view.y + r_refdef.view.height;
1502
1503         // if it is inside out, it's not visible
1504         if (ix2 <= ix1 || iy2 <= iy1)
1505                 return true;
1506
1507         // the light area is visible, set up the scissor rectangle
1508         GL_Scissor(ix1, iy1, ix2 - ix1, iy2 - iy1);
1509         //qglScissor(ix1, iy1, ix2 - ix1, iy2 - iy1);CHECKGLERROR
1510         //qglEnable(GL_SCISSOR_TEST);CHECKGLERROR
1511         r_refdef.stats.lights_scissored++;
1512         return false;
1513 }
1514
1515 static void R_Shadow_RenderLighting_Light_Vertex_Shading(int firstvertex, int numverts, int numtriangles, const int *element3i, const float *diffusecolor, const float *ambientcolor)
1516 {
1517         float *vertex3f = rsurface.vertex3f + 3 * firstvertex;
1518         float *normal3f = rsurface.normal3f + 3 * firstvertex;
1519         float *color4f = rsurface.array_color4f + 4 * firstvertex;
1520         float dist, dot, distintensity, shadeintensity, v[3], n[3];
1521         if (r_textureunits.integer >= 3)
1522         {
1523                 if (VectorLength2(diffusecolor) > 0)
1524                 {
1525                         for (;numverts > 0;numverts--, vertex3f += 3, normal3f += 3, color4f += 4)
1526                         {
1527                                 Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v);
1528                                 Matrix4x4_Transform3x3(&rsurface.entitytolight, normal3f, n);
1529                                 if ((dot = DotProduct(n, v)) < 0)
1530                                 {
1531                                         shadeintensity = -dot / sqrt(VectorLength2(v) * VectorLength2(n));
1532                                         VectorMA(ambientcolor, shadeintensity, diffusecolor, color4f);
1533                                 }
1534                                 else
1535                                         VectorCopy(ambientcolor, color4f);
1536                                 if (r_refdef.fogenabled)
1537                                 {
1538                                         float f;
1539                                         f = FogPoint_Model(vertex3f);
1540                                         VectorScale(color4f, f, color4f);
1541                                 }
1542                                 color4f[3] = 1;
1543                         }
1544                 }
1545                 else
1546                 {
1547                         for (;numverts > 0;numverts--, vertex3f += 3, color4f += 4)
1548                         {
1549                                 VectorCopy(ambientcolor, color4f);
1550                                 if (r_refdef.fogenabled)
1551                                 {
1552                                         float f;
1553                                         Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v);
1554                                         f = FogPoint_Model(vertex3f);
1555                                         VectorScale(color4f, f, color4f);
1556                                 }
1557                                 color4f[3] = 1;
1558                         }
1559                 }
1560         }
1561         else if (r_textureunits.integer >= 2)
1562         {
1563                 if (VectorLength2(diffusecolor) > 0)
1564                 {
1565                         for (;numverts > 0;numverts--, vertex3f += 3, normal3f += 3, color4f += 4)
1566                         {
1567                                 Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v);
1568                                 if ((dist = fabs(v[2])) < 1 && (distintensity = r_shadow_attentable[(int)(dist * ATTENTABLESIZE)]))
1569                                 {
1570                                         Matrix4x4_Transform3x3(&rsurface.entitytolight, normal3f, n);
1571                                         if ((dot = DotProduct(n, v)) < 0)
1572                                         {
1573                                                 shadeintensity = -dot / sqrt(VectorLength2(v) * VectorLength2(n));
1574                                                 color4f[0] = (ambientcolor[0] + shadeintensity * diffusecolor[0]) * distintensity;
1575                                                 color4f[1] = (ambientcolor[1] + shadeintensity * diffusecolor[1]) * distintensity;
1576                                                 color4f[2] = (ambientcolor[2] + shadeintensity * diffusecolor[2]) * distintensity;
1577                                         }
1578                                         else
1579                                         {
1580                                                 color4f[0] = ambientcolor[0] * distintensity;
1581                                                 color4f[1] = ambientcolor[1] * distintensity;
1582                                                 color4f[2] = ambientcolor[2] * distintensity;
1583                                         }
1584                                         if (r_refdef.fogenabled)
1585                                         {
1586                                                 float f;
1587                                                 f = FogPoint_Model(vertex3f);
1588                                                 VectorScale(color4f, f, color4f);
1589                                         }
1590                                 }
1591                                 else
1592                                         VectorClear(color4f);
1593                                 color4f[3] = 1;
1594                         }
1595                 }
1596                 else
1597                 {
1598                         for (;numverts > 0;numverts--, vertex3f += 3, color4f += 4)
1599                         {
1600                                 Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v);
1601                                 if ((dist = fabs(v[2])) < 1 && (distintensity = r_shadow_attentable[(int)(dist * ATTENTABLESIZE)]))
1602                                 {
1603                                         color4f[0] = ambientcolor[0] * distintensity;
1604                                         color4f[1] = ambientcolor[1] * distintensity;
1605                                         color4f[2] = ambientcolor[2] * distintensity;
1606                                         if (r_refdef.fogenabled)
1607                                         {
1608                                                 float f;
1609                                                 f = FogPoint_Model(vertex3f);
1610                                                 VectorScale(color4f, f, color4f);
1611                                         }
1612                                 }
1613                                 else
1614                                         VectorClear(color4f);
1615                                 color4f[3] = 1;
1616                         }
1617                 }
1618         }
1619         else
1620         {
1621                 if (VectorLength2(diffusecolor) > 0)
1622                 {
1623                         for (;numverts > 0;numverts--, vertex3f += 3, normal3f += 3, color4f += 4)
1624                         {
1625                                 Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v);
1626                                 if ((dist = VectorLength(v)) < 1 && (distintensity = r_shadow_attentable[(int)(dist * ATTENTABLESIZE)]))
1627                                 {
1628                                         distintensity = (1 - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
1629                                         Matrix4x4_Transform3x3(&rsurface.entitytolight, normal3f, n);
1630                                         if ((dot = DotProduct(n, v)) < 0)
1631                                         {
1632                                                 shadeintensity = -dot / sqrt(VectorLength2(v) * VectorLength2(n));
1633                                                 color4f[0] = (ambientcolor[0] + shadeintensity * diffusecolor[0]) * distintensity;
1634                                                 color4f[1] = (ambientcolor[1] + shadeintensity * diffusecolor[1]) * distintensity;
1635                                                 color4f[2] = (ambientcolor[2] + shadeintensity * diffusecolor[2]) * distintensity;
1636                                         }
1637                                         else
1638                                         {
1639                                                 color4f[0] = ambientcolor[0] * distintensity;
1640                                                 color4f[1] = ambientcolor[1] * distintensity;
1641                                                 color4f[2] = ambientcolor[2] * distintensity;
1642                                         }
1643                                         if (r_refdef.fogenabled)
1644                                         {
1645                                                 float f;
1646                                                 f = FogPoint_Model(vertex3f);
1647                                                 VectorScale(color4f, f, color4f);
1648                                         }
1649                                 }
1650                                 else
1651                                         VectorClear(color4f);
1652                                 color4f[3] = 1;
1653                         }
1654                 }
1655                 else
1656                 {
1657                         for (;numverts > 0;numverts--, vertex3f += 3, color4f += 4)
1658                         {
1659                                 Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v);
1660                                 if ((dist = VectorLength(v)) < 1 && (distintensity = r_shadow_attentable[(int)(dist * ATTENTABLESIZE)]))
1661                                 {
1662                                         distintensity = (1 - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
1663                                         color4f[0] = ambientcolor[0] * distintensity;
1664                                         color4f[1] = ambientcolor[1] * distintensity;
1665                                         color4f[2] = ambientcolor[2] * distintensity;
1666                                         if (r_refdef.fogenabled)
1667                                         {
1668                                                 float f;
1669                                                 f = FogPoint_Model(vertex3f);
1670                                                 VectorScale(color4f, f, color4f);
1671                                         }
1672                                 }
1673                                 else
1674                                         VectorClear(color4f);
1675                                 color4f[3] = 1;
1676                         }
1677                 }
1678         }
1679 }
1680
1681 // TODO: use glTexGen instead of feeding vertices to texcoordpointer?
1682
1683 static void R_Shadow_GenTexCoords_Diffuse_NormalCubeMap(int firstvertex, int numvertices, int numtriangles, const int *element3i)
1684 {
1685         int i;
1686         float       *out3f     = rsurface.array_texcoord3f + 3 * firstvertex;
1687         const float *vertex3f  = rsurface.vertex3f         + 3 * firstvertex;
1688         const float *svector3f = rsurface.svector3f        + 3 * firstvertex;
1689         const float *tvector3f = rsurface.tvector3f        + 3 * firstvertex;
1690         const float *normal3f  = rsurface.normal3f         + 3 * firstvertex;
1691         float lightdir[3];
1692         for (i = 0;i < numvertices;i++, vertex3f += 3, svector3f += 3, tvector3f += 3, normal3f += 3, out3f += 3)
1693         {
1694                 VectorSubtract(rsurface.entitylightorigin, vertex3f, lightdir);
1695                 // the cubemap normalizes this for us
1696                 out3f[0] = DotProduct(svector3f, lightdir);
1697                 out3f[1] = DotProduct(tvector3f, lightdir);
1698                 out3f[2] = DotProduct(normal3f, lightdir);
1699         }
1700 }
1701
1702 static void R_Shadow_GenTexCoords_Specular_NormalCubeMap(int firstvertex, int numvertices, int numtriangles, const int *element3i)
1703 {
1704         int i;
1705         float       *out3f     = rsurface.array_texcoord3f + 3 * firstvertex;
1706         const float *vertex3f  = rsurface.vertex3f         + 3 * firstvertex;
1707         const float *svector3f = rsurface.svector3f        + 3 * firstvertex;
1708         const float *tvector3f = rsurface.tvector3f        + 3 * firstvertex;
1709         const float *normal3f  = rsurface.normal3f         + 3 * firstvertex;
1710         float lightdir[3], eyedir[3], halfdir[3];
1711         for (i = 0;i < numvertices;i++, vertex3f += 3, svector3f += 3, tvector3f += 3, normal3f += 3, out3f += 3)
1712         {
1713                 VectorSubtract(rsurface.entitylightorigin, vertex3f, lightdir);
1714                 VectorNormalize(lightdir);
1715                 VectorSubtract(rsurface.modelorg, vertex3f, eyedir);
1716                 VectorNormalize(eyedir);
1717                 VectorAdd(lightdir, eyedir, halfdir);
1718                 // the cubemap normalizes this for us
1719                 out3f[0] = DotProduct(svector3f, halfdir);
1720                 out3f[1] = DotProduct(tvector3f, halfdir);
1721                 out3f[2] = DotProduct(normal3f, halfdir);
1722         }
1723 }
1724
1725 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)
1726 {
1727         // used to display how many times a surface is lit for level design purposes
1728         R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
1729 }
1730
1731 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)
1732 {
1733         // ARB2 GLSL shader path (GFFX5200, Radeon 9500)
1734         R_SetupSurfaceShader(lightcolorbase, false, ambientscale, diffusescale, specularscale, RSURFPASS_RTLIGHT);
1735         if ((rsurface.texture->currentmaterialflags & MATERIALFLAG_VERTEXTEXTUREBLEND))
1736                 R_Mesh_ColorPointer(rsurface.modellightmapcolor4f, rsurface.modellightmapcolor4f_bufferobject, rsurface.modellightmapcolor4f_bufferoffset);
1737         else
1738                 R_Mesh_ColorPointer(NULL, 0, 0);
1739         R_Mesh_TexMatrix(0, &rsurface.texture->currenttexmatrix);
1740         R_Mesh_TexMatrix(1, &rsurface.texture->currentbackgroundtexmatrix);
1741         R_Mesh_TexBind(GL20TU_NORMAL, R_GetTexture(rsurface.texture->currentskinframe->nmap));
1742         R_Mesh_TexBind(GL20TU_COLOR, R_GetTexture(rsurface.texture->basetexture));
1743         R_Mesh_TexBind(GL20TU_GLOSS, R_GetTexture(rsurface.texture->glosstexture));
1744         if (rsurface.texture->backgroundcurrentskinframe)
1745         {
1746                 R_Mesh_TexBind(GL20TU_SECONDARY_NORMAL, R_GetTexture(rsurface.texture->backgroundcurrentskinframe->nmap));
1747                 R_Mesh_TexBind(GL20TU_SECONDARY_COLOR, R_GetTexture(rsurface.texture->backgroundbasetexture));
1748                 R_Mesh_TexBind(GL20TU_SECONDARY_GLOSS, R_GetTexture(rsurface.texture->backgroundglosstexture));
1749                 R_Mesh_TexBind(GL20TU_SECONDARY_GLOW, R_GetTexture(rsurface.texture->backgroundcurrentskinframe->glow));
1750         }
1751         //R_Mesh_TexBindCubeMap(GL20TU_CUBE, R_GetTexture(rsurface.rtlight->currentcubemap));
1752         R_Mesh_TexBind(GL20TU_FOGMASK, R_GetTexture(r_texture_fogattenuation));
1753         if(rsurface.texture->colormapping)
1754         {
1755                 R_Mesh_TexBind(GL20TU_PANTS, R_GetTexture(rsurface.texture->currentskinframe->pants));
1756                 R_Mesh_TexBind(GL20TU_SHIRT, R_GetTexture(rsurface.texture->currentskinframe->shirt));
1757         }
1758         R_Mesh_TexBind(GL20TU_ATTENUATION, R_GetTexture(r_shadow_attenuationgradienttexture));
1759         R_Mesh_TexCoordPointer(0, 2, rsurface.texcoordtexture2f, rsurface.texcoordtexture2f_bufferobject, rsurface.texcoordtexture2f_bufferoffset);
1760         R_Mesh_TexCoordPointer(1, 3, rsurface.svector3f, rsurface.svector3f_bufferobject, rsurface.svector3f_bufferoffset);
1761         R_Mesh_TexCoordPointer(2, 3, rsurface.tvector3f, rsurface.tvector3f_bufferobject, rsurface.tvector3f_bufferoffset);
1762         R_Mesh_TexCoordPointer(3, 3, rsurface.normal3f, rsurface.normal3f_bufferobject, rsurface.normal3f_bufferoffset);
1763         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
1764         {
1765                 qglDepthFunc(GL_EQUAL);CHECKGLERROR
1766         }
1767         R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
1768         if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST)
1769         {
1770                 qglDepthFunc(GL_LEQUAL);CHECKGLERROR
1771         }
1772 }
1773
1774 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)
1775 {
1776         // shared final code for all the dot3 layers
1777         int renders;
1778         GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 0);
1779         for (renders = 0;renders < 64 && (r > 0 || g > 0 || b > 0);renders++, r--, g--, b--)
1780         {
1781                 GL_Color(bound(0, r, 1), bound(0, g, 1), bound(0, b, 1), 1);
1782                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
1783         }
1784 }
1785
1786 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)
1787 {
1788         rmeshstate_t m;
1789         // colorscale accounts for how much we multiply the brightness
1790         // during combine.
1791         //
1792         // mult is how many times the final pass of the lighting will be
1793         // performed to get more brightness than otherwise possible.
1794         //
1795         // Limit mult to 64 for sanity sake.
1796         GL_Color(1,1,1,1);
1797         if (r_shadow_texture3d.integer && rsurface.rtlight->currentcubemap != r_texture_whitecube && r_textureunits.integer >= 4)
1798         {
1799                 // 3 3D combine path (Geforce3, Radeon 8500)
1800                 memset(&m, 0, sizeof(m));
1801                 m.tex3d[0] = R_GetTexture(r_shadow_attenuation3dtexture);
1802                 m.pointer_texcoord3f[0] = rsurface.vertex3f;
1803                 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
1804                 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
1805                 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
1806                 m.tex[1] = R_GetTexture(basetexture);
1807                 m.pointer_texcoord[1] = rsurface.texcoordtexture2f;
1808                 m.pointer_texcoord_bufferobject[1] = rsurface.texcoordtexture2f_bufferobject;
1809                 m.pointer_texcoord_bufferoffset[1] = rsurface.texcoordtexture2f_bufferoffset;
1810                 m.texmatrix[1] = rsurface.texture->currenttexmatrix;
1811                 m.texcubemap[2] = R_GetTexture(rsurface.rtlight->currentcubemap);
1812                 m.pointer_texcoord3f[2] = rsurface.vertex3f;
1813                 m.pointer_texcoord_bufferobject[2] = rsurface.vertex3f_bufferobject;
1814                 m.pointer_texcoord_bufferoffset[2] = rsurface.vertex3f_bufferoffset;
1815                 m.texmatrix[2] = rsurface.entitytolight;
1816                 GL_BlendFunc(GL_ONE, GL_ONE);
1817         }
1818         else if (r_shadow_texture3d.integer && rsurface.rtlight->currentcubemap == r_texture_whitecube && r_textureunits.integer >= 2)
1819         {
1820                 // 2 3D combine path (Geforce3, original Radeon)
1821                 memset(&m, 0, sizeof(m));
1822                 m.tex3d[0] = R_GetTexture(r_shadow_attenuation3dtexture);
1823                 m.pointer_texcoord3f[0] = rsurface.vertex3f;
1824                 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
1825                 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
1826                 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
1827                 m.tex[1] = R_GetTexture(basetexture);
1828                 m.pointer_texcoord[1] = rsurface.texcoordtexture2f;
1829                 m.pointer_texcoord_bufferobject[1] = rsurface.texcoordtexture2f_bufferobject;
1830                 m.pointer_texcoord_bufferoffset[1] = rsurface.texcoordtexture2f_bufferoffset;
1831                 m.texmatrix[1] = rsurface.texture->currenttexmatrix;
1832                 GL_BlendFunc(GL_ONE, GL_ONE);
1833         }
1834         else if (r_textureunits.integer >= 4 && rsurface.rtlight->currentcubemap != r_texture_whitecube)
1835         {
1836                 // 4 2D combine path (Geforce3, Radeon 8500)
1837                 memset(&m, 0, sizeof(m));
1838                 m.tex[0] = R_GetTexture(r_shadow_attenuation2dtexture);
1839                 m.pointer_texcoord3f[0] = rsurface.vertex3f;
1840                 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
1841                 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
1842                 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
1843                 m.tex[1] = R_GetTexture(r_shadow_attenuation2dtexture);
1844                 m.pointer_texcoord3f[1] = rsurface.vertex3f;
1845                 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
1846                 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
1847                 m.texmatrix[1] = rsurface.entitytoattenuationz;
1848                 m.tex[2] = R_GetTexture(basetexture);
1849                 m.pointer_texcoord[2] = rsurface.texcoordtexture2f;
1850                 m.pointer_texcoord_bufferobject[2] = rsurface.texcoordtexture2f_bufferobject;
1851                 m.pointer_texcoord_bufferoffset[2] = rsurface.texcoordtexture2f_bufferoffset;
1852                 m.texmatrix[2] = rsurface.texture->currenttexmatrix;
1853                 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
1854                 {
1855                         m.texcubemap[3] = R_GetTexture(rsurface.rtlight->currentcubemap);
1856                         m.pointer_texcoord3f[3] = rsurface.vertex3f;
1857                         m.pointer_texcoord_bufferobject[3] = rsurface.vertex3f_bufferobject;
1858                         m.pointer_texcoord_bufferoffset[3] = rsurface.vertex3f_bufferoffset;
1859                         m.texmatrix[3] = rsurface.entitytolight;
1860                 }
1861                 GL_BlendFunc(GL_ONE, GL_ONE);
1862         }
1863         else if (r_textureunits.integer >= 3 && rsurface.rtlight->currentcubemap == r_texture_whitecube)
1864         {
1865                 // 3 2D combine path (Geforce3, original Radeon)
1866                 memset(&m, 0, sizeof(m));
1867                 m.tex[0] = R_GetTexture(r_shadow_attenuation2dtexture);
1868                 m.pointer_texcoord3f[0] = rsurface.vertex3f;
1869                 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
1870                 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
1871                 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
1872                 m.tex[1] = R_GetTexture(r_shadow_attenuation2dtexture);
1873                 m.pointer_texcoord3f[1] = rsurface.vertex3f;
1874                 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
1875                 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
1876                 m.texmatrix[1] = rsurface.entitytoattenuationz;
1877                 m.tex[2] = R_GetTexture(basetexture);
1878                 m.pointer_texcoord[2] = rsurface.texcoordtexture2f;
1879                 m.pointer_texcoord_bufferobject[2] = rsurface.texcoordtexture2f_bufferobject;
1880                 m.pointer_texcoord_bufferoffset[2] = rsurface.texcoordtexture2f_bufferoffset;
1881                 m.texmatrix[2] = rsurface.texture->currenttexmatrix;
1882                 GL_BlendFunc(GL_ONE, GL_ONE);
1883         }
1884         else
1885         {
1886                 // 2/2/2 2D combine path (any dot3 card)
1887                 memset(&m, 0, sizeof(m));
1888                 m.tex[0] = R_GetTexture(r_shadow_attenuation2dtexture);
1889                 m.pointer_texcoord3f[0] = rsurface.vertex3f;
1890                 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
1891                 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
1892                 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
1893                 m.tex[1] = R_GetTexture(r_shadow_attenuation2dtexture);
1894                 m.pointer_texcoord3f[1] = rsurface.vertex3f;
1895                 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
1896                 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
1897                 m.texmatrix[1] = rsurface.entitytoattenuationz;
1898                 R_Mesh_TextureState(&m);
1899                 GL_ColorMask(0,0,0,1);
1900                 GL_BlendFunc(GL_ONE, GL_ZERO);
1901                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
1902
1903                 // second pass
1904                 memset(&m, 0, sizeof(m));
1905                 m.tex[0] = R_GetTexture(basetexture);
1906                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
1907                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
1908                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
1909                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
1910                 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
1911                 {
1912                         m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
1913                         m.pointer_texcoord3f[1] = rsurface.vertex3f;
1914                         m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
1915                         m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
1916                         m.texmatrix[1] = rsurface.entitytolight;
1917                 }
1918                 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
1919         }
1920         // this final code is shared
1921         R_Mesh_TextureState(&m);
1922         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);
1923 }
1924
1925 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)
1926 {
1927         rmeshstate_t m;
1928         // colorscale accounts for how much we multiply the brightness
1929         // during combine.
1930         //
1931         // mult is how many times the final pass of the lighting will be
1932         // performed to get more brightness than otherwise possible.
1933         //
1934         // Limit mult to 64 for sanity sake.
1935         GL_Color(1,1,1,1);
1936         // generate normalization cubemap texcoords
1937         R_Shadow_GenTexCoords_Diffuse_NormalCubeMap(firstvertex, numvertices, numtriangles, element3i);
1938         if (r_shadow_texture3d.integer && r_textureunits.integer >= 4)
1939         {
1940                 // 3/2 3D combine path (Geforce3, Radeon 8500)
1941                 memset(&m, 0, sizeof(m));
1942                 m.tex[0] = R_GetTexture(normalmaptexture);
1943                 m.texcombinergb[0] = GL_REPLACE;
1944                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
1945                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
1946                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
1947                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
1948                 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
1949                 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
1950                 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
1951                 m.pointer_texcoord_bufferobject[1] = 0;
1952                 m.pointer_texcoord_bufferoffset[1] = 0;
1953                 m.tex3d[2] = R_GetTexture(r_shadow_attenuation3dtexture);
1954                 m.pointer_texcoord3f[2] = rsurface.vertex3f;
1955                 m.pointer_texcoord_bufferobject[2] = rsurface.vertex3f_bufferobject;
1956                 m.pointer_texcoord_bufferoffset[2] = rsurface.vertex3f_bufferoffset;
1957                 m.texmatrix[2] = rsurface.entitytoattenuationxyz;
1958                 R_Mesh_TextureState(&m);
1959                 GL_ColorMask(0,0,0,1);
1960                 GL_BlendFunc(GL_ONE, GL_ZERO);
1961                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
1962
1963                 // second pass
1964                 memset(&m, 0, sizeof(m));
1965                 m.tex[0] = R_GetTexture(basetexture);
1966                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
1967                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
1968                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
1969                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
1970                 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
1971                 {
1972                         m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
1973                         m.pointer_texcoord3f[1] = rsurface.vertex3f;
1974                         m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
1975                         m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
1976                         m.texmatrix[1] = rsurface.entitytolight;
1977                 }
1978                 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
1979         }
1980         else if (r_shadow_texture3d.integer && r_textureunits.integer >= 2 && rsurface.rtlight->currentcubemap != r_texture_whitecube)
1981         {
1982                 // 1/2/2 3D combine path (original Radeon)
1983                 memset(&m, 0, sizeof(m));
1984                 m.tex3d[0] = R_GetTexture(r_shadow_attenuation3dtexture);
1985                 m.pointer_texcoord3f[0] = rsurface.vertex3f;
1986                 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
1987                 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
1988                 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
1989                 R_Mesh_TextureState(&m);
1990                 GL_ColorMask(0,0,0,1);
1991                 GL_BlendFunc(GL_ONE, GL_ZERO);
1992                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
1993
1994                 // second pass
1995                 memset(&m, 0, sizeof(m));
1996                 m.tex[0] = R_GetTexture(normalmaptexture);
1997                 m.texcombinergb[0] = GL_REPLACE;
1998                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
1999                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2000                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2001                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2002                 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
2003                 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
2004                 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
2005                 m.pointer_texcoord_bufferobject[1] = 0;
2006                 m.pointer_texcoord_bufferoffset[1] = 0;
2007                 R_Mesh_TextureState(&m);
2008                 GL_BlendFunc(GL_DST_ALPHA, GL_ZERO);
2009                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2010
2011                 // second pass
2012                 memset(&m, 0, sizeof(m));
2013                 m.tex[0] = R_GetTexture(basetexture);
2014                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2015                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2016                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2017                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2018                 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
2019                 {
2020                         m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
2021                         m.pointer_texcoord3f[1] = rsurface.vertex3f;
2022                         m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2023                         m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2024                         m.texmatrix[1] = rsurface.entitytolight;
2025                 }
2026                 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
2027         }
2028         else if (r_shadow_texture3d.integer && r_textureunits.integer >= 2 && rsurface.rtlight->currentcubemap == r_texture_whitecube)
2029         {
2030                 // 2/2 3D combine path (original Radeon)
2031                 memset(&m, 0, sizeof(m));
2032                 m.tex[0] = R_GetTexture(normalmaptexture);
2033                 m.texcombinergb[0] = GL_REPLACE;
2034                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2035                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2036                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2037                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2038                 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
2039                 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
2040                 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
2041                 m.pointer_texcoord_bufferobject[1] = 0;
2042                 m.pointer_texcoord_bufferoffset[1] = 0;
2043                 R_Mesh_TextureState(&m);
2044                 GL_ColorMask(0,0,0,1);
2045                 GL_BlendFunc(GL_ONE, GL_ZERO);
2046                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2047
2048                 // second pass
2049                 memset(&m, 0, sizeof(m));
2050                 m.tex[0] = R_GetTexture(basetexture);
2051                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2052                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2053                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2054                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2055                 m.tex3d[1] = R_GetTexture(r_shadow_attenuation3dtexture);
2056                 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2057                 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2058                 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2059                 m.texmatrix[1] = rsurface.entitytoattenuationxyz;
2060                 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
2061         }
2062         else if (r_textureunits.integer >= 4)
2063         {
2064                 // 4/2 2D combine path (Geforce3, Radeon 8500)
2065                 memset(&m, 0, sizeof(m));
2066                 m.tex[0] = R_GetTexture(normalmaptexture);
2067                 m.texcombinergb[0] = GL_REPLACE;
2068                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2069                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2070                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2071                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2072                 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
2073                 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
2074                 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
2075                 m.pointer_texcoord_bufferobject[1] = 0;
2076                 m.pointer_texcoord_bufferoffset[1] = 0;
2077                 m.tex[2] = R_GetTexture(r_shadow_attenuation2dtexture);
2078                 m.pointer_texcoord3f[2] = rsurface.vertex3f;
2079                 m.pointer_texcoord_bufferobject[2] = rsurface.vertex3f_bufferobject;
2080                 m.pointer_texcoord_bufferoffset[2] = rsurface.vertex3f_bufferoffset;
2081                 m.texmatrix[2] = rsurface.entitytoattenuationxyz;
2082                 m.tex[3] = R_GetTexture(r_shadow_attenuation2dtexture);
2083                 m.pointer_texcoord3f[3] = rsurface.vertex3f;
2084                 m.pointer_texcoord_bufferobject[3] = rsurface.vertex3f_bufferobject;
2085                 m.pointer_texcoord_bufferoffset[3] = rsurface.vertex3f_bufferoffset;
2086                 m.texmatrix[3] = rsurface.entitytoattenuationz;
2087                 R_Mesh_TextureState(&m);
2088                 GL_ColorMask(0,0,0,1);
2089                 GL_BlendFunc(GL_ONE, GL_ZERO);
2090                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2091
2092                 // second pass
2093                 memset(&m, 0, sizeof(m));
2094                 m.tex[0] = R_GetTexture(basetexture);
2095                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2096                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2097                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2098                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2099                 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
2100                 {
2101                         m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
2102                         m.pointer_texcoord3f[1] = rsurface.vertex3f;
2103                         m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2104                         m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2105                         m.texmatrix[1] = rsurface.entitytolight;
2106                 }
2107                 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
2108         }
2109         else
2110         {
2111                 // 2/2/2 2D combine path (any dot3 card)
2112                 memset(&m, 0, sizeof(m));
2113                 m.tex[0] = R_GetTexture(r_shadow_attenuation2dtexture);
2114                 m.pointer_texcoord3f[0] = rsurface.vertex3f;
2115                 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
2116                 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
2117                 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
2118                 m.tex[1] = R_GetTexture(r_shadow_attenuation2dtexture);
2119                 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2120                 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
2121                 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
2122                 m.texmatrix[1] = rsurface.entitytoattenuationz;
2123                 R_Mesh_TextureState(&m);
2124                 GL_ColorMask(0,0,0,1);
2125                 GL_BlendFunc(GL_ONE, GL_ZERO);
2126                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2127
2128                 // second pass
2129                 memset(&m, 0, sizeof(m));
2130                 m.tex[0] = R_GetTexture(normalmaptexture);
2131                 m.texcombinergb[0] = GL_REPLACE;
2132                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2133                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2134                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2135                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2136                 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
2137                 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
2138                 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
2139                 m.pointer_texcoord_bufferobject[1] = 0;
2140                 m.pointer_texcoord_bufferoffset[1] = 0;
2141                 R_Mesh_TextureState(&m);
2142                 GL_BlendFunc(GL_DST_ALPHA, GL_ZERO);
2143                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2144
2145                 // second pass
2146                 memset(&m, 0, sizeof(m));
2147                 m.tex[0] = R_GetTexture(basetexture);
2148                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2149                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2150                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2151                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2152                 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
2153                 {
2154                         m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
2155                         m.pointer_texcoord3f[1] = rsurface.vertex3f;
2156                         m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2157                         m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2158                         m.texmatrix[1] = rsurface.entitytolight;
2159                 }
2160                 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
2161         }
2162         // this final code is shared
2163         R_Mesh_TextureState(&m);
2164         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);
2165 }
2166
2167 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)
2168 {
2169         float glossexponent;
2170         rmeshstate_t m;
2171         // FIXME: detect blendsquare!
2172         //if (!gl_support_blendsquare)
2173         //      return;
2174         GL_Color(1,1,1,1);
2175         // generate normalization cubemap texcoords
2176         R_Shadow_GenTexCoords_Specular_NormalCubeMap(firstvertex, numvertices, numtriangles, element3i);
2177         if (r_shadow_texture3d.integer && r_textureunits.integer >= 2 && rsurface.rtlight->currentcubemap != r_texture_whitecube)
2178         {
2179                 // 2/0/0/1/2 3D combine blendsquare path
2180                 memset(&m, 0, sizeof(m));
2181                 m.tex[0] = R_GetTexture(normalmaptexture);
2182                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2183                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2184                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2185                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2186                 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
2187                 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
2188                 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
2189                 m.pointer_texcoord_bufferobject[1] = 0;
2190                 m.pointer_texcoord_bufferoffset[1] = 0;
2191                 R_Mesh_TextureState(&m);
2192                 GL_ColorMask(0,0,0,1);
2193                 // this squares the result
2194                 GL_BlendFunc(GL_SRC_ALPHA, GL_ZERO);
2195                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2196
2197                 // second and third pass
2198                 R_Mesh_ResetTextureState();
2199                 // square alpha in framebuffer a few times to make it shiny
2200                 GL_BlendFunc(GL_ZERO, GL_DST_ALPHA);
2201                 for (glossexponent = 2;glossexponent * 2 <= r_shadow_glossexponent.value;glossexponent *= 2)
2202                         R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2203
2204                 // fourth pass
2205                 memset(&m, 0, sizeof(m));
2206                 m.tex3d[0] = R_GetTexture(r_shadow_attenuation3dtexture);
2207                 m.pointer_texcoord3f[0] = rsurface.vertex3f;
2208                 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
2209                 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
2210                 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
2211                 R_Mesh_TextureState(&m);
2212                 GL_BlendFunc(GL_DST_ALPHA, GL_ZERO);
2213                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2214
2215                 // fifth pass
2216                 memset(&m, 0, sizeof(m));
2217                 m.tex[0] = R_GetTexture(glosstexture);
2218                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2219                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2220                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2221                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2222                 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
2223                 {
2224                         m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
2225                         m.pointer_texcoord3f[1] = rsurface.vertex3f;
2226                         m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2227                         m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2228                         m.texmatrix[1] = rsurface.entitytolight;
2229                 }
2230                 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
2231         }
2232         else if (r_shadow_texture3d.integer && r_textureunits.integer >= 2 && rsurface.rtlight->currentcubemap == r_texture_whitecube /* && gl_support_blendsquare*/) // FIXME: detect blendsquare!
2233         {
2234                 // 2/0/0/2 3D combine blendsquare path
2235                 memset(&m, 0, sizeof(m));
2236                 m.tex[0] = R_GetTexture(normalmaptexture);
2237                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2238                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2239                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2240                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2241                 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
2242                 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
2243                 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
2244                 m.pointer_texcoord_bufferobject[1] = 0;
2245                 m.pointer_texcoord_bufferoffset[1] = 0;
2246                 R_Mesh_TextureState(&m);
2247                 GL_ColorMask(0,0,0,1);
2248                 // this squares the result
2249                 GL_BlendFunc(GL_SRC_ALPHA, GL_ZERO);
2250                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2251
2252                 // second and third pass
2253                 R_Mesh_ResetTextureState();
2254                 // square alpha in framebuffer a few times to make it shiny
2255                 GL_BlendFunc(GL_ZERO, GL_DST_ALPHA);
2256                 for (glossexponent = 2;glossexponent * 2 <= r_shadow_glossexponent.value;glossexponent *= 2)
2257                         R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2258
2259                 // fourth pass
2260                 memset(&m, 0, sizeof(m));
2261                 m.tex[0] = R_GetTexture(glosstexture);
2262                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2263                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2264                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2265                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2266                 m.tex3d[1] = R_GetTexture(r_shadow_attenuation3dtexture);
2267                 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2268                 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2269                 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2270                 m.texmatrix[1] = rsurface.entitytoattenuationxyz;
2271                 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
2272         }
2273         else
2274         {
2275                 // 2/0/0/2/2 2D combine blendsquare path
2276                 memset(&m, 0, sizeof(m));
2277                 m.tex[0] = R_GetTexture(normalmaptexture);
2278                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2279                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2280                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2281                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2282                 m.texcubemap[1] = R_GetTexture(r_texture_normalizationcube);
2283                 m.texcombinergb[1] = GL_DOT3_RGBA_ARB;
2284                 m.pointer_texcoord3f[1] = rsurface.array_texcoord3f;
2285                 m.pointer_texcoord_bufferobject[1] = 0;
2286                 m.pointer_texcoord_bufferoffset[1] = 0;
2287                 R_Mesh_TextureState(&m);
2288                 GL_ColorMask(0,0,0,1);
2289                 // this squares the result
2290                 GL_BlendFunc(GL_SRC_ALPHA, GL_ZERO);
2291                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2292
2293                 // second and third pass
2294                 R_Mesh_ResetTextureState();
2295                 // square alpha in framebuffer a few times to make it shiny
2296                 GL_BlendFunc(GL_ZERO, GL_DST_ALPHA);
2297                 for (glossexponent = 2;glossexponent * 2 <= r_shadow_glossexponent.value;glossexponent *= 2)
2298                         R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2299
2300                 // fourth pass
2301                 memset(&m, 0, sizeof(m));
2302                 m.tex[0] = R_GetTexture(r_shadow_attenuation2dtexture);
2303                 m.pointer_texcoord3f[0] = rsurface.vertex3f;
2304                 m.pointer_texcoord_bufferobject[0] = rsurface.vertex3f_bufferobject;
2305                 m.pointer_texcoord_bufferoffset[0] = rsurface.vertex3f_bufferoffset;
2306                 m.texmatrix[0] = rsurface.entitytoattenuationxyz;
2307                 m.tex[1] = R_GetTexture(r_shadow_attenuation2dtexture);
2308                 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2309                 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2310                 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2311                 m.texmatrix[1] = rsurface.entitytoattenuationz;
2312                 R_Mesh_TextureState(&m);
2313                 GL_BlendFunc(GL_DST_ALPHA, GL_ZERO);
2314                 R_Mesh_Draw(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject);
2315
2316                 // fifth pass
2317                 memset(&m, 0, sizeof(m));
2318                 m.tex[0] = R_GetTexture(glosstexture);
2319                 m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2320                 m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2321                 m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2322                 m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2323                 if (rsurface.rtlight->currentcubemap != r_texture_whitecube)
2324                 {
2325                         m.texcubemap[1] = R_GetTexture(rsurface.rtlight->currentcubemap);
2326                         m.pointer_texcoord3f[1] = rsurface.vertex3f;
2327                         m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2328                         m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2329                         m.texmatrix[1] = rsurface.entitytolight;
2330                 }
2331                 GL_BlendFunc(GL_DST_ALPHA, GL_ONE);
2332         }
2333         // this final code is shared
2334         R_Mesh_TextureState(&m);
2335         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);
2336 }
2337
2338 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)
2339 {
2340         // ARB path (any Geforce, any Radeon)
2341         qboolean doambient = ambientscale > 0;
2342         qboolean dodiffuse = diffusescale > 0;
2343         qboolean dospecular = specularscale > 0;
2344         if (!doambient && !dodiffuse && !dospecular)
2345                 return;
2346         R_Mesh_ColorPointer(NULL, 0, 0);
2347         if (doambient)
2348                 R_Shadow_RenderLighting_Light_Dot3_AmbientPass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase, basetexture, ambientscale * r_refdef.view.colorscale);
2349         if (dodiffuse)
2350                 R_Shadow_RenderLighting_Light_Dot3_DiffusePass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase, basetexture, normalmaptexture, diffusescale * r_refdef.view.colorscale);
2351         if (dopants)
2352         {
2353                 if (doambient)
2354                         R_Shadow_RenderLighting_Light_Dot3_AmbientPass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorpants, pantstexture, ambientscale * r_refdef.view.colorscale);
2355                 if (dodiffuse)
2356                         R_Shadow_RenderLighting_Light_Dot3_DiffusePass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorpants, pantstexture, normalmaptexture, diffusescale * r_refdef.view.colorscale);
2357         }
2358         if (doshirt)
2359         {
2360                 if (doambient)
2361                         R_Shadow_RenderLighting_Light_Dot3_AmbientPass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorshirt, shirttexture, ambientscale * r_refdef.view.colorscale);
2362                 if (dodiffuse)
2363                         R_Shadow_RenderLighting_Light_Dot3_DiffusePass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorshirt, shirttexture, normalmaptexture, diffusescale * r_refdef.view.colorscale);
2364         }
2365         if (dospecular)
2366                 R_Shadow_RenderLighting_Light_Dot3_SpecularPass(firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, element3i_bufferobject, element3s_bufferobject, lightcolorbase, glosstexture, normalmaptexture, specularscale * r_refdef.view.colorscale);
2367 }
2368
2369 static void R_Shadow_RenderLighting_Light_Vertex_Pass(int firstvertex, int numvertices, int numtriangles, const int *element3i, vec3_t diffusecolor2, vec3_t ambientcolor2)
2370 {
2371         int renders;
2372         int i;
2373         int stop;
2374         int newfirstvertex;
2375         int newlastvertex;
2376         int newnumtriangles;
2377         int *newe;
2378         const int *e;
2379         float *c;
2380         int maxtriangles = 4096;
2381         int newelements[4096*3];
2382         R_Shadow_RenderLighting_Light_Vertex_Shading(firstvertex, numvertices, numtriangles, element3i, diffusecolor2, ambientcolor2);
2383         for (renders = 0;renders < 64;renders++)
2384         {
2385                 stop = true;
2386                 newfirstvertex = 0;
2387                 newlastvertex = 0;
2388                 newnumtriangles = 0;
2389                 newe = newelements;
2390                 // due to low fillrate on the cards this vertex lighting path is
2391                 // designed for, we manually cull all triangles that do not
2392                 // contain a lit vertex
2393                 // this builds batches of triangles from multiple surfaces and
2394                 // renders them at once
2395                 for (i = 0, e = element3i;i < numtriangles;i++, e += 3)
2396                 {
2397                         if (VectorLength2(rsurface.array_color4f + e[0] * 4) + VectorLength2(rsurface.array_color4f + e[1] * 4) + VectorLength2(rsurface.array_color4f + e[2] * 4) >= 0.01)
2398                         {
2399                                 if (newnumtriangles)
2400                                 {
2401                                         newfirstvertex = min(newfirstvertex, e[0]);
2402                                         newlastvertex  = max(newlastvertex, e[0]);
2403                                 }
2404                                 else
2405                                 {
2406                                         newfirstvertex = e[0];
2407                                         newlastvertex = e[0];
2408                                 }
2409                                 newfirstvertex = min(newfirstvertex, e[1]);
2410                                 newlastvertex  = max(newlastvertex, e[1]);
2411                                 newfirstvertex = min(newfirstvertex, e[2]);
2412                                 newlastvertex  = max(newlastvertex, e[2]);
2413                                 newe[0] = e[0];
2414                                 newe[1] = e[1];
2415                                 newe[2] = e[2];
2416                                 newnumtriangles++;
2417                                 newe += 3;
2418                                 if (newnumtriangles >= maxtriangles)
2419                                 {
2420                                         R_Mesh_Draw(newfirstvertex, newlastvertex - newfirstvertex + 1, 0, newnumtriangles, newelements, NULL, 0, 0);
2421                                         newnumtriangles = 0;
2422                                         newe = newelements;
2423                                         stop = false;
2424                                 }
2425                         }
2426                 }
2427                 if (newnumtriangles >= 1)
2428                 {
2429                         R_Mesh_Draw(newfirstvertex, newlastvertex - newfirstvertex + 1, 0, newnumtriangles, newelements, NULL, 0, 0);
2430                         stop = false;
2431                 }
2432                 // if we couldn't find any lit triangles, exit early
2433                 if (stop)
2434                         break;
2435                 // now reduce the intensity for the next overbright pass
2436                 // we have to clamp to 0 here incase the drivers have improper
2437                 // handling of negative colors
2438                 // (some old drivers even have improper handling of >1 color)
2439                 stop = true;
2440                 for (i = 0, c = rsurface.array_color4f + 4 * firstvertex;i < numvertices;i++, c += 4)
2441                 {
2442                         if (c[0] > 1 || c[1] > 1 || c[2] > 1)
2443                         {
2444                                 c[0] = max(0, c[0] - 1);
2445                                 c[1] = max(0, c[1] - 1);
2446                                 c[2] = max(0, c[2] - 1);
2447                                 stop = false;
2448                         }
2449                         else
2450                                 VectorClear(c);
2451                 }
2452                 // another check...
2453                 if (stop)
2454                         break;
2455         }
2456 }
2457
2458 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)
2459 {
2460         // OpenGL 1.1 path (anything)
2461         float ambientcolorbase[3], diffusecolorbase[3];
2462         float ambientcolorpants[3], diffusecolorpants[3];
2463         float ambientcolorshirt[3], diffusecolorshirt[3];
2464         rmeshstate_t m;
2465         VectorScale(lightcolorbase, ambientscale * 2 * r_refdef.view.colorscale, ambientcolorbase);
2466         VectorScale(lightcolorbase, diffusescale * 2 * r_refdef.view.colorscale, diffusecolorbase);
2467         VectorScale(lightcolorpants, ambientscale * 2 * r_refdef.view.colorscale, ambientcolorpants);
2468         VectorScale(lightcolorpants, diffusescale * 2 * r_refdef.view.colorscale, diffusecolorpants);
2469         VectorScale(lightcolorshirt, ambientscale * 2 * r_refdef.view.colorscale, ambientcolorshirt);
2470         VectorScale(lightcolorshirt, diffusescale * 2 * r_refdef.view.colorscale, diffusecolorshirt);
2471         memset(&m, 0, sizeof(m));
2472         m.tex[0] = R_GetTexture(basetexture);
2473         m.texmatrix[0] = rsurface.texture->currenttexmatrix;
2474         m.pointer_texcoord[0] = rsurface.texcoordtexture2f;
2475         m.pointer_texcoord_bufferobject[0] = rsurface.texcoordtexture2f_bufferobject;
2476         m.pointer_texcoord_bufferoffset[0] = rsurface.texcoordtexture2f_bufferoffset;
2477         if (r_textureunits.integer >= 2)
2478         {
2479                 // voodoo2 or TNT
2480                 m.tex[1] = R_GetTexture(r_shadow_attenuation2dtexture);
2481                 m.texmatrix[1] = rsurface.entitytoattenuationxyz;
2482                 m.pointer_texcoord3f[1] = rsurface.vertex3f;
2483                 m.pointer_texcoord_bufferobject[1] = rsurface.vertex3f_bufferobject;
2484                 m.pointer_texcoord_bufferoffset[1] = rsurface.vertex3f_bufferoffset;
2485                 if (r_textureunits.integer >= 3)
2486                 {
2487                         // Voodoo4 or Kyro (or Geforce3/Radeon with gl_combine off)
2488                         m.tex[2] = R_GetTexture(r_shadow_attenuation2dtexture);
2489                         m.texmatrix[2] = rsurface.entitytoattenuationz;
2490                         m.pointer_texcoord3f[2] = rsurface.vertex3f;
2491                         m.pointer_texcoord_bufferobject[2] = rsurface.vertex3f_bufferobject;
2492                         m.pointer_texcoord_bufferoffset[2] = rsurface.vertex3f_bufferoffset;
2493                 }
2494         }
2495         R_Mesh_TextureState(&m);
2496         //R_Mesh_TexBind(0, R_GetTexture(basetexture));
2497         R_Shadow_RenderLighting_Light_Vertex_Pass(firstvertex, numvertices, numtriangles, element3i, diffusecolorbase, ambientcolorbase);
2498         if (dopants)
2499         {
2500                 R_Mesh_TexBind(0, R_GetTexture(pantstexture));
2501                 R_Shadow_RenderLighting_Light_Vertex_Pass(firstvertex, numvertices, numtriangles, element3i, diffusecolorpants, ambientcolorpants);
2502         }
2503         if (doshirt)
2504         {
2505                 R_Mesh_TexBind(0, R_GetTexture(shirttexture));
2506                 R_Shadow_RenderLighting_Light_Vertex_Pass(firstvertex, numvertices, numtriangles, element3i, diffusecolorshirt, ambientcolorshirt);
2507         }
2508 }
2509
2510 extern cvar_t gl_lightmaps;
2511 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)
2512 {
2513         float ambientscale, diffusescale, specularscale;
2514         vec3_t lightcolorbase, lightcolorpants, lightcolorshirt;
2515         rtexture_t *nmap;
2516         // calculate colors to render this texture with
2517         lightcolorbase[0] = rsurface.rtlight->currentcolor[0] * rsurface.texture->dlightcolor[0];
2518         lightcolorbase[1] = rsurface.rtlight->currentcolor[1] * rsurface.texture->dlightcolor[1];
2519         lightcolorbase[2] = rsurface.rtlight->currentcolor[2] * rsurface.texture->dlightcolor[2];
2520         ambientscale = rsurface.rtlight->ambientscale;
2521         diffusescale = rsurface.rtlight->diffusescale;
2522         specularscale = rsurface.rtlight->specularscale * rsurface.texture->specularscale;
2523         if (!r_shadow_usenormalmap.integer)
2524         {
2525                 ambientscale += 1.0f * diffusescale;
2526                 diffusescale = 0;
2527                 specularscale = 0;
2528         }
2529         if ((ambientscale + diffusescale) * VectorLength2(lightcolorbase) + specularscale * VectorLength2(lightcolorbase) < (1.0f / 1048576.0f))
2530                 return;
2531         RSurf_SetupDepthAndCulling();
2532         nmap = rsurface.texture->currentskinframe->nmap;
2533         if (gl_lightmaps.integer)
2534                 nmap = r_texture_blanknormalmap;
2535         if (rsurface.texture->colormapping && !gl_lightmaps.integer)
2536         {
2537                 qboolean dopants = rsurface.texture->currentskinframe->pants != NULL && VectorLength2(rsurface.colormap_pantscolor) >= (1.0f / 1048576.0f);
2538                 qboolean doshirt = rsurface.texture->currentskinframe->shirt != NULL && VectorLength2(rsurface.colormap_shirtcolor) >= (1.0f / 1048576.0f);
2539                 if (dopants)
2540                 {
2541                         lightcolorpants[0] = lightcolorbase[0] * rsurface.colormap_pantscolor[0];
2542                         lightcolorpants[1] = lightcolorbase[1] * rsurface.colormap_pantscolor[1];
2543                         lightcolorpants[2] = lightcolorbase[2] * rsurface.colormap_pantscolor[2];
2544                 }
2545                 else
2546                         VectorClear(lightcolorpants);
2547                 if (doshirt)
2548                 {
2549                         lightcolorshirt[0] = lightcolorbase[0] * rsurface.colormap_shirtcolor[0];
2550                         lightcolorshirt[1] = lightcolorbase[1] * rsurface.colormap_shirtcolor[1];
2551                         lightcolorshirt[2] = lightcolorbase[2] * rsurface.colormap_shirtcolor[2];
2552                 }
2553                 else
2554                         VectorClear(lightcolorshirt);
2555                 switch (r_shadow_rendermode)
2556                 {
2557                 case R_SHADOW_RENDERMODE_VISIBLELIGHTING:
2558                         GL_DepthTest(!(rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST) && !r_showdisabledepthtest.integer);
2559                         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);
2560                         break;
2561                 case R_SHADOW_RENDERMODE_LIGHT_GLSL:
2562                         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);
2563                         break;
2564                 case R_SHADOW_RENDERMODE_LIGHT_DOT3:
2565                         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);
2566                         break;
2567                 case R_SHADOW_RENDERMODE_LIGHT_VERTEX:
2568                         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);
2569                         break;
2570                 default:
2571                         Con_Printf("R_Shadow_RenderLighting: unknown r_shadow_rendermode %i\n", r_shadow_rendermode);
2572                         break;
2573                 }
2574         }
2575         else
2576         {
2577                 switch (r_shadow_rendermode)
2578                 {
2579                 case R_SHADOW_RENDERMODE_VISIBLELIGHTING:
2580                         GL_DepthTest(!(rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST) && !r_showdisabledepthtest.integer);
2581                         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);
2582                         break;
2583                 case R_SHADOW_RENDERMODE_LIGHT_GLSL:
2584                         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);
2585                         break;
2586                 case R_SHADOW_RENDERMODE_LIGHT_DOT3:
2587                         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);
2588                         break;
2589                 case R_SHADOW_RENDERMODE_LIGHT_VERTEX:
2590                         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);
2591                         break;
2592                 default:
2593                         Con_Printf("R_Shadow_RenderLighting: unknown r_shadow_rendermode %i\n", r_shadow_rendermode);
2594                         break;
2595                 }
2596         }
2597 }
2598
2599 void R_RTLight_Update(rtlight_t *rtlight, int isstatic, matrix4x4_t *matrix, vec3_t color, int style, const char *cubemapname, qboolean shadow, vec_t corona, vec_t coronasizescale, vec_t ambientscale, vec_t diffusescale, vec_t specularscale, int flags)
2600 {
2601         matrix4x4_t tempmatrix = *matrix;
2602         Matrix4x4_Scale(&tempmatrix, r_shadow_lightradiusscale.value, 1);
2603
2604         // if this light has been compiled before, free the associated data
2605         R_RTLight_Uncompile(rtlight);
2606
2607         // clear it completely to avoid any lingering data
2608         memset(rtlight, 0, sizeof(*rtlight));
2609
2610         // copy the properties
2611         rtlight->matrix_lighttoworld = tempmatrix;
2612         Matrix4x4_Invert_Simple(&rtlight->matrix_worldtolight, &tempmatrix);
2613         Matrix4x4_OriginFromMatrix(&tempmatrix, rtlight->shadoworigin);
2614         rtlight->radius = Matrix4x4_ScaleFromMatrix(&tempmatrix);
2615         VectorCopy(color, rtlight->color);
2616         rtlight->cubemapname[0] = 0;
2617         if (cubemapname && cubemapname[0])
2618                 strlcpy(rtlight->cubemapname, cubemapname, sizeof(rtlight->cubemapname));
2619         rtlight->shadow = shadow;
2620         rtlight->corona = corona;
2621         rtlight->style = style;
2622         rtlight->isstatic = isstatic;
2623         rtlight->coronasizescale = coronasizescale;
2624         rtlight->ambientscale = ambientscale;
2625         rtlight->diffusescale = diffusescale;
2626         rtlight->specularscale = specularscale;
2627         rtlight->flags = flags;
2628
2629         // compute derived data
2630         //rtlight->cullradius = rtlight->radius;
2631         //rtlight->cullradius2 = rtlight->radius * rtlight->radius;
2632         rtlight->cullmins[0] = rtlight->shadoworigin[0] - rtlight->radius;
2633         rtlight->cullmins[1] = rtlight->shadoworigin[1] - rtlight->radius;
2634         rtlight->cullmins[2] = rtlight->shadoworigin[2] - rtlight->radius;
2635         rtlight->cullmaxs[0] = rtlight->shadoworigin[0] + rtlight->radius;
2636         rtlight->cullmaxs[1] = rtlight->shadoworigin[1] + rtlight->radius;
2637         rtlight->cullmaxs[2] = rtlight->shadoworigin[2] + rtlight->radius;
2638 }
2639
2640 // compiles rtlight geometry
2641 // (undone by R_FreeCompiledRTLight, which R_UpdateLight calls)
2642 void R_RTLight_Compile(rtlight_t *rtlight)
2643 {
2644         int i;
2645         int numsurfaces, numleafs, numleafpvsbytes, numshadowtrispvsbytes, numlighttrispvsbytes;
2646         int lighttris, shadowtris, shadowzpasstris, shadowzfailtris;
2647         entity_render_t *ent = r_refdef.scene.worldentity;
2648         dp_model_t *model = r_refdef.scene.worldmodel;
2649         unsigned char *data;
2650         shadowmesh_t *mesh;
2651
2652         // compile the light
2653         rtlight->compiled = true;
2654         rtlight->static_numleafs = 0;
2655         rtlight->static_numleafpvsbytes = 0;
2656         rtlight->static_leaflist = NULL;
2657         rtlight->static_leafpvs = NULL;
2658         rtlight->static_numsurfaces = 0;
2659         rtlight->static_surfacelist = NULL;
2660         rtlight->cullmins[0] = rtlight->shadoworigin[0] - rtlight->radius;
2661         rtlight->cullmins[1] = rtlight->shadoworigin[1] - rtlight->radius;
2662         rtlight->cullmins[2] = rtlight->shadoworigin[2] - rtlight->radius;
2663         rtlight->cullmaxs[0] = rtlight->shadoworigin[0] + rtlight->radius;
2664         rtlight->cullmaxs[1] = rtlight->shadoworigin[1] + rtlight->radius;
2665         rtlight->cullmaxs[2] = rtlight->shadoworigin[2] + rtlight->radius;
2666
2667         if (model && model->GetLightInfo)
2668         {
2669                 // this variable must be set for the CompileShadowVolume code
2670                 r_shadow_compilingrtlight = rtlight;
2671                 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);
2672                 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);
2673                 numleafpvsbytes = (model->brush.num_leafs + 7) >> 3;
2674                 numshadowtrispvsbytes = ((model->brush.shadowmesh ? model->brush.shadowmesh->numtriangles : model->surfmesh.num_triangles) + 7) >> 3;
2675                 numlighttrispvsbytes = (model->surfmesh.num_triangles + 7) >> 3;
2676                 data = (unsigned char *)Mem_Alloc(r_main_mempool, sizeof(int) * numsurfaces + sizeof(int) * numleafs + numleafpvsbytes + numshadowtrispvsbytes + numlighttrispvsbytes);
2677                 rtlight->static_numsurfaces = numsurfaces;
2678                 rtlight->static_surfacelist = (int *)data;data += sizeof(int) * numsurfaces;
2679                 rtlight->static_numleafs = numleafs;
2680                 rtlight->static_leaflist = (int *)data;data += sizeof(int) * numleafs;
2681                 rtlight->static_numleafpvsbytes = numleafpvsbytes;
2682                 rtlight->static_leafpvs = (unsigned char *)data;data += numleafpvsbytes;
2683                 rtlight->static_numshadowtrispvsbytes = numshadowtrispvsbytes;
2684                 rtlight->static_shadowtrispvs = (unsigned char *)data;data += numshadowtrispvsbytes;
2685                 rtlight->static_numlighttrispvsbytes = numlighttrispvsbytes;
2686                 rtlight->static_lighttrispvs = (unsigned char *)data;data += numlighttrispvsbytes;
2687                 if (rtlight->static_numsurfaces)
2688                         memcpy(rtlight->static_surfacelist, r_shadow_buffer_surfacelist, rtlight->static_numsurfaces * sizeof(*rtlight->static_surfacelist));
2689                 if (rtlight->static_numleafs)
2690                         memcpy(rtlight->static_leaflist, r_shadow_buffer_leaflist, rtlight->static_numleafs * sizeof(*rtlight->static_leaflist));
2691                 if (rtlight->static_numleafpvsbytes)
2692                         memcpy(rtlight->static_leafpvs, r_shadow_buffer_leafpvs, rtlight->static_numleafpvsbytes);
2693                 if (rtlight->static_numshadowtrispvsbytes)
2694                         memcpy(rtlight->static_shadowtrispvs, r_shadow_buffer_shadowtrispvs, rtlight->static_numshadowtrispvsbytes);
2695                 if (rtlight->static_numlighttrispvsbytes)
2696                         memcpy(rtlight->static_lighttrispvs, r_shadow_buffer_lighttrispvs, rtlight->static_numlighttrispvsbytes);
2697                 if (model->CompileShadowVolume && rtlight->shadow)
2698                         model->CompileShadowVolume(ent, rtlight->shadoworigin, NULL, rtlight->radius, numsurfaces, r_shadow_buffer_surfacelist);
2699                 // now we're done compiling the rtlight
2700                 r_shadow_compilingrtlight = NULL;
2701         }
2702
2703
2704         // use smallest available cullradius - box radius or light radius
2705         //rtlight->cullradius = RadiusFromBoundsAndOrigin(rtlight->cullmins, rtlight->cullmaxs, rtlight->shadoworigin);
2706         //rtlight->cullradius = min(rtlight->cullradius, rtlight->radius);
2707
2708         shadowzpasstris = 0;
2709         if (rtlight->static_meshchain_shadow_zpass)
2710                 for (mesh = rtlight->static_meshchain_shadow_zpass;mesh;mesh = mesh->next)
2711                         shadowzpasstris += mesh->numtriangles;
2712
2713         shadowzfailtris = 0;
2714         if (rtlight->static_meshchain_shadow_zfail)
2715                 for (mesh = rtlight->static_meshchain_shadow_zfail;mesh;mesh = mesh->next)
2716                         shadowzfailtris += mesh->numtriangles;
2717
2718         lighttris = 0;
2719         if (rtlight->static_numlighttrispvsbytes)
2720                 for (i = 0;i < rtlight->static_numlighttrispvsbytes*8;i++)
2721                         if (CHECKPVSBIT(rtlight->static_lighttrispvs, i))
2722                                 lighttris++;
2723
2724         shadowtris = 0;
2725         if (rtlight->static_numlighttrispvsbytes)
2726                 for (i = 0;i < rtlight->static_numshadowtrispvsbytes*8;i++)
2727                         if (CHECKPVSBIT(rtlight->static_shadowtrispvs, i))
2728                                 shadowtris++;
2729
2730         if (developer.integer >= 10)
2731                 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);
2732 }
2733
2734 void R_RTLight_Uncompile(rtlight_t *rtlight)
2735 {
2736         if (rtlight->compiled)
2737         {
2738                 if (rtlight->static_meshchain_shadow_zpass)
2739                         Mod_ShadowMesh_Free(rtlight->static_meshchain_shadow_zpass);
2740                 rtlight->static_meshchain_shadow_zpass = NULL;
2741                 if (rtlight->static_meshchain_shadow_zfail)
2742                         Mod_ShadowMesh_Free(rtlight->static_meshchain_shadow_zfail);
2743                 rtlight->static_meshchain_shadow_zfail = NULL;
2744                 // these allocations are grouped
2745                 if (rtlight->static_surfacelist)
2746                         Mem_Free(rtlight->static_surfacelist);
2747                 rtlight->static_numleafs = 0;
2748                 rtlight->static_numleafpvsbytes = 0;
2749                 rtlight->static_leaflist = NULL;
2750                 rtlight->static_leafpvs = NULL;
2751                 rtlight->static_numsurfaces = 0;
2752                 rtlight->static_surfacelist = NULL;
2753                 rtlight->static_numshadowtrispvsbytes = 0;
2754                 rtlight->static_shadowtrispvs = NULL;
2755                 rtlight->static_numlighttrispvsbytes = 0;
2756                 rtlight->static_lighttrispvs = NULL;
2757                 rtlight->compiled = false;
2758         }
2759 }
2760
2761 void R_Shadow_UncompileWorldLights(void)
2762 {
2763         size_t lightindex;
2764         dlight_t *light;
2765         size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
2766         for (lightindex = 0;lightindex < range;lightindex++)
2767         {
2768                 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
2769                 if (!light)
2770                         continue;
2771                 R_RTLight_Uncompile(&light->rtlight);
2772         }
2773 }
2774
2775 void R_Shadow_ComputeShadowCasterCullingPlanes(rtlight_t *rtlight)
2776 {
2777         int i, j;
2778         mplane_t plane;
2779         // reset the count of frustum planes
2780         // see rsurface.rtlight_frustumplanes definition for how much this array
2781         // can hold
2782         rsurface.rtlight_numfrustumplanes = 0;
2783
2784         // haven't implemented a culling path for ortho rendering
2785         if (!r_refdef.view.useperspective)
2786         {
2787                 // check if the light is on screen and copy the 4 planes if it is
2788                 for (i = 0;i < 4;i++)
2789                         if (PlaneDiff(rtlight->shadoworigin, &r_refdef.view.frustum[i]) < -0.03125)
2790                                 break;
2791                 if (i == 4)
2792                         for (i = 0;i < 4;i++)
2793                                 rsurface.rtlight_frustumplanes[rsurface.rtlight_numfrustumplanes++] = r_refdef.view.frustum[i];
2794                 return;
2795         }
2796
2797 #if 1
2798         // generate a deformed frustum that includes the light origin, this is
2799         // used to cull shadow casting surfaces that can not possibly cast a
2800         // shadow onto the visible light-receiving surfaces, which can be a
2801         // performance gain
2802         //
2803         // if the light origin is onscreen the result will be 4 planes exactly
2804         // if the light origin is offscreen on only one axis the result will
2805         // be exactly 5 planes (split-side case)
2806         // if the light origin is offscreen on two axes the result will be
2807         // exactly 4 planes (stretched corner case)
2808         for (i = 0;i < 4;i++)
2809         {
2810                 // quickly reject standard frustum planes that put the light
2811                 // origin outside the frustum
2812                 if (PlaneDiff(rtlight->shadoworigin, &r_refdef.view.frustum[i]) < -0.03125)
2813                         continue;
2814                 // copy the plane
2815                 rsurface.rtlight_frustumplanes[rsurface.rtlight_numfrustumplanes++] = r_refdef.view.frustum[i];
2816         }
2817         // if all the standard frustum planes were accepted, the light is onscreen
2818         // otherwise we need to generate some more planes below...
2819         if (rsurface.rtlight_numfrustumplanes < 4)
2820         {
2821                 // at least one of the stock frustum planes failed, so we need to
2822                 // create one or two custom planes to enclose the light origin
2823                 for (i = 0;i < 4;i++)
2824                 {
2825                         // create a plane using the view origin and light origin, and a
2826                         // single point from the frustum corner set
2827                         TriangleNormal(r_refdef.view.origin, r_refdef.view.frustumcorner[i], rtlight->shadoworigin, plane.normal);
2828                         VectorNormalize(plane.normal);
2829                         plane.dist = DotProduct(r_refdef.view.origin, plane.normal);
2830                         // see if this plane is backwards and flip it if so
2831                         for (j = 0;j < 4;j++)
2832                                 if (j != i && DotProduct(r_refdef.view.frustumcorner[j], plane.normal) - plane.dist < -0.03125)
2833                                         break;
2834                         if (j < 4)
2835                         {
2836                                 VectorNegate(plane.normal, plane.normal);
2837                                 plane.dist *= -1;
2838                                 // flipped plane, test again to see if it is now valid
2839                                 for (j = 0;j < 4;j++)
2840                                         if (j != i && DotProduct(r_refdef.view.frustumcorner[j], plane.normal) - plane.dist < -0.03125)
2841                                                 break;
2842                                 // if the plane is still not valid, then it is dividing the
2843                                 // frustum and has to be rejected
2844                                 if (j < 4)
2845                                         continue;
2846                         }
2847                         // we have created a valid plane, compute extra info
2848                         PlaneClassify(&plane);
2849                         // copy the plane
2850                         rsurface.rtlight_frustumplanes[rsurface.rtlight_numfrustumplanes++] = plane;
2851 #if 1
2852                         // if we've found 5 frustum planes then we have constructed a
2853                         // proper split-side case and do not need to keep searching for
2854                         // planes to enclose the light origin
2855                         if (rsurface.rtlight_numfrustumplanes == 5)
2856                                 break;
2857 #endif
2858                 }
2859         }
2860 #endif
2861
2862 #if 0
2863         for (i = 0;i < rsurface.rtlight_numfrustumplanes;i++)
2864         {
2865                 plane = rsurface.rtlight_frustumplanes[i];
2866                 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));
2867         }
2868 #endif
2869
2870 #if 0
2871         // now add the light-space box planes if the light box is rotated, as any
2872         // caster outside the oriented light box is irrelevant (even if it passed
2873         // the worldspace light box, which is axial)
2874         if (rtlight->matrix_lighttoworld.m[0][0] != 1 || rtlight->matrix_lighttoworld.m[1][1] != 1 || rtlight->matrix_lighttoworld.m[2][2] != 1)
2875         {
2876                 for (i = 0;i < 6;i++)
2877                 {
2878                         vec3_t v;
2879                         VectorClear(v);
2880                         v[i >> 1] = (i & 1) ? -1 : 1;
2881                         Matrix4x4_Transform(&rtlight->matrix_lighttoworld, v, plane.normal);
2882                         VectorSubtract(plane.normal, rtlight->shadoworigin, plane.normal);
2883                         plane.dist = VectorNormalizeLength(plane.normal);
2884                         plane.dist += DotProduct(plane.normal, rtlight->shadoworigin);
2885                         rsurface.rtlight_frustumplanes[rsurface.rtlight_numfrustumplanes++] = plane;
2886                 }
2887         }
2888 #endif
2889
2890 #if 0
2891         // add the world-space reduced box planes
2892         for (i = 0;i < 6;i++)
2893         {
2894                 VectorClear(plane.normal);
2895                 plane.normal[i >> 1] = (i & 1) ? -1 : 1;
2896                 plane.dist = (i & 1) ? -rsurface.rtlight_cullmaxs[i >> 1] : rsurface.rtlight_cullmins[i >> 1];
2897                 rsurface.rtlight_frustumplanes[rsurface.rtlight_numfrustumplanes++] = plane;
2898         }
2899 #endif
2900
2901 #if 0
2902         {
2903         int j, oldnum;
2904         vec3_t points[8];
2905         vec_t bestdist;
2906         // reduce all plane distances to tightly fit the rtlight cull box, which
2907         // is in worldspace
2908         VectorSet(points[0], rsurface.rtlight_cullmins[0], rsurface.rtlight_cullmins[1], rsurface.rtlight_cullmins[2]);
2909         VectorSet(points[1], rsurface.rtlight_cullmaxs[0], rsurface.rtlight_cullmins[1], rsurface.rtlight_cullmins[2]);
2910         VectorSet(points[2], rsurface.rtlight_cullmins[0], rsurface.rtlight_cullmaxs[1], rsurface.rtlight_cullmins[2]);
2911         VectorSet(points[3], rsurface.rtlight_cullmaxs[0], rsurface.rtlight_cullmaxs[1], rsurface.rtlight_cullmins[2]);
2912         VectorSet(points[4], rsurface.rtlight_cullmins[0], rsurface.rtlight_cullmins[1], rsurface.rtlight_cullmaxs[2]);
2913         VectorSet(points[5], rsurface.rtlight_cullmaxs[0], rsurface.rtlight_cullmins[1], rsurface.rtlight_cullmaxs[2]);
2914         VectorSet(points[6], rsurface.rtlight_cullmins[0], rsurface.rtlight_cullmaxs[1], rsurface.rtlight_cullmaxs[2]);
2915         VectorSet(points[7], rsurface.rtlight_cullmaxs[0], rsurface.rtlight_cullmaxs[1], rsurface.rtlight_cullmaxs[2]);
2916         oldnum = rsurface.rtlight_numfrustumplanes;
2917         rsurface.rtlight_numfrustumplanes = 0;
2918         for (j = 0;j < oldnum;j++)
2919         {
2920                 // find the nearest point on the box to this plane
2921                 bestdist = DotProduct(rsurface.rtlight_frustumplanes[j].normal, points[0]);
2922                 for (i = 1;i < 8;i++)
2923                 {
2924                         dist = DotProduct(rsurface.rtlight_frustumplanes[j].normal, points[i]);
2925                         if (bestdist > dist)
2926                                 bestdist = dist;
2927                 }
2928                 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);
2929                 // if the nearest point is near or behind the plane, we want this
2930                 // plane, otherwise the plane is useless as it won't cull anything
2931                 if (rsurface.rtlight_frustumplanes[j].dist < bestdist + 0.03125)
2932                 {
2933                         PlaneClassify(&rsurface.rtlight_frustumplanes[j]);
2934                         rsurface.rtlight_frustumplanes[rsurface.rtlight_numfrustumplanes++] = rsurface.rtlight_frustumplanes[j];
2935                 }
2936         }
2937         }
2938 #endif
2939 }
2940
2941 void R_Shadow_DrawWorldShadow(int numsurfaces, int *surfacelist, const unsigned char *trispvs)
2942 {
2943         qboolean zpass;
2944         shadowmesh_t *mesh;
2945         int t, tend;
2946         int surfacelistindex;
2947         msurface_t *surface;
2948
2949         RSurf_ActiveWorldEntity();
2950         if (rsurface.rtlight->compiled && r_shadow_realtime_world_compile.integer && r_shadow_realtime_world_compileshadow.integer)
2951         {
2952                 CHECKGLERROR
2953                 zpass = R_Shadow_UseZPass(r_refdef.scene.worldmodel->normalmins, r_refdef.scene.worldmodel->normalmaxs);
2954                 R_Shadow_RenderMode_StencilShadowVolumes(zpass);
2955                 mesh = zpass ? rsurface.rtlight->static_meshchain_shadow_zpass : rsurface.rtlight->static_meshchain_shadow_zfail;
2956                 for (;mesh;mesh = mesh->next)
2957                 {
2958                         r_refdef.stats.lights_shadowtriangles += mesh->numtriangles;
2959                         R_Mesh_VertexPointer(mesh->vertex3f, mesh->vbo, mesh->vbooffset_vertex3f);
2960                         GL_LockArrays(0, mesh->numverts);
2961                         if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZPASS_STENCIL)
2962                         {
2963                                 // increment stencil if frontface is infront of depthbuffer
2964                                 GL_CullFace(r_refdef.view.cullface_back);
2965                                 qglStencilOp(GL_KEEP, GL_KEEP, GL_INCR);CHECKGLERROR
2966                                 R_Mesh_Draw(0, mesh->numverts, 0, mesh->numtriangles, mesh->element3i, mesh->element3s, mesh->ebo3i, mesh->ebo3s);
2967                                 // decrement stencil if backface is infront of depthbuffer
2968                                 GL_CullFace(r_refdef.view.cullface_front);
2969                                 qglStencilOp(GL_KEEP, GL_KEEP, GL_DECR);CHECKGLERROR
2970                         }
2971                         else if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZFAIL_STENCIL)
2972                         {
2973                                 // decrement stencil if backface is behind depthbuffer
2974                                 GL_CullFace(r_refdef.view.cullface_front);
2975                                 qglStencilOp(GL_KEEP, GL_DECR, GL_KEEP);CHECKGLERROR
2976                                 R_Mesh_Draw(0, mesh->numverts, 0, mesh->numtriangles, mesh->element3i, mesh->element3s, mesh->ebo3i, mesh->ebo3s);
2977                                 // increment stencil if frontface is behind depthbuffer
2978                                 GL_CullFace(r_refdef.view.cullface_back);
2979                                 qglStencilOp(GL_KEEP, GL_INCR, GL_KEEP);CHECKGLERROR
2980                         }
2981                         R_Mesh_Draw(0, mesh->numverts, 0, mesh->numtriangles, mesh->element3i, mesh->element3s, mesh->ebo3i, mesh->ebo3s);
2982                         GL_LockArrays(0, 0);
2983                 }
2984                 CHECKGLERROR
2985         }
2986         else if (numsurfaces && r_refdef.scene.worldmodel->brush.shadowmesh && r_shadow_culltriangles.integer)
2987         {
2988                 R_Shadow_PrepareShadowMark(r_refdef.scene.worldmodel->brush.shadowmesh->numtriangles);
2989                 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
2990                 {
2991                         surface = r_refdef.scene.worldmodel->data_surfaces + surfacelist[surfacelistindex];
2992                         for (t = surface->num_firstshadowmeshtriangle, tend = t + surface->num_triangles;t < tend;t++)
2993                                 if (CHECKPVSBIT(trispvs, t))
2994                                         shadowmarklist[numshadowmark++] = t;
2995                 }
2996                 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);
2997         }
2998         else if (numsurfaces)
2999                 r_refdef.scene.worldmodel->DrawShadowVolume(r_refdef.scene.worldentity, rsurface.rtlight->shadoworigin, NULL, rsurface.rtlight->radius, numsurfaces, surfacelist, rsurface.rtlight_cullmins, rsurface.rtlight_cullmaxs);
3000
3001         rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
3002 }
3003
3004 void R_Shadow_DrawEntityShadow(entity_render_t *ent)
3005 {
3006         vec3_t relativeshadoworigin, relativeshadowmins, relativeshadowmaxs;
3007         vec_t relativeshadowradius;
3008         RSurf_ActiveModelEntity(ent, false, false);
3009         Matrix4x4_Transform(&ent->inversematrix, rsurface.rtlight->shadoworigin, relativeshadoworigin);
3010         relativeshadowradius = rsurface.rtlight->radius / ent->scale;
3011         relativeshadowmins[0] = relativeshadoworigin[0] - relativeshadowradius;
3012         relativeshadowmins[1] = relativeshadoworigin[1] - relativeshadowradius;
3013         relativeshadowmins[2] = relativeshadoworigin[2] - relativeshadowradius;
3014         relativeshadowmaxs[0] = relativeshadoworigin[0] + relativeshadowradius;
3015         relativeshadowmaxs[1] = relativeshadoworigin[1] + relativeshadowradius;
3016         relativeshadowmaxs[2] = relativeshadoworigin[2] + relativeshadowradius;
3017         ent->model->DrawShadowVolume(ent, relativeshadoworigin, NULL, relativeshadowradius, ent->model->nummodelsurfaces, ent->model->sortedmodelsurfaces, relativeshadowmins, relativeshadowmaxs);
3018         rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
3019 }
3020
3021 void R_Shadow_SetupEntityLight(const entity_render_t *ent)
3022 {
3023         // set up properties for rendering light onto this entity
3024         RSurf_ActiveModelEntity(ent, true, true);
3025         GL_AlphaTest(false);
3026         Matrix4x4_Concat(&rsurface.entitytolight, &rsurface.rtlight->matrix_worldtolight, &ent->matrix);
3027         Matrix4x4_Concat(&rsurface.entitytoattenuationxyz, &matrix_attenuationxyz, &rsurface.entitytolight);
3028         Matrix4x4_Concat(&rsurface.entitytoattenuationz, &matrix_attenuationz, &rsurface.entitytolight);
3029         Matrix4x4_Transform(&ent->inversematrix, rsurface.rtlight->shadoworigin, rsurface.entitylightorigin);
3030         if (r_shadow_lightingrendermode == R_SHADOW_RENDERMODE_LIGHT_GLSL)
3031                 R_Mesh_TexMatrix(3, &rsurface.entitytolight);
3032 }
3033
3034 void R_Shadow_DrawWorldLight(int numsurfaces, int *surfacelist, const unsigned char *trispvs)
3035 {
3036         if (!r_refdef.scene.worldmodel->DrawLight)
3037                 return;
3038
3039         // set up properties for rendering light onto this entity
3040         RSurf_ActiveWorldEntity();
3041         GL_AlphaTest(false);
3042         rsurface.entitytolight = rsurface.rtlight->matrix_worldtolight;
3043         Matrix4x4_Concat(&rsurface.entitytoattenuationxyz, &matrix_attenuationxyz, &rsurface.entitytolight);
3044         Matrix4x4_Concat(&rsurface.entitytoattenuationz, &matrix_attenuationz, &rsurface.entitytolight);
3045         VectorCopy(rsurface.rtlight->shadoworigin, rsurface.entitylightorigin);
3046         if (r_shadow_lightingrendermode == R_SHADOW_RENDERMODE_LIGHT_GLSL)
3047                 R_Mesh_TexMatrix(3, &rsurface.entitytolight);
3048
3049         r_refdef.scene.worldmodel->DrawLight(r_refdef.scene.worldentity, numsurfaces, surfacelist, trispvs);
3050
3051         rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
3052 }
3053
3054 void R_Shadow_DrawEntityLight(entity_render_t *ent)
3055 {
3056         dp_model_t *model = ent->model;
3057         if (!model->DrawLight)
3058                 return;
3059
3060         R_Shadow_SetupEntityLight(ent);
3061
3062         model->DrawLight(ent, model->nummodelsurfaces, model->sortedmodelsurfaces, NULL);
3063
3064         rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
3065 }
3066
3067 void R_DrawRTLight(rtlight_t *rtlight, qboolean visible)
3068 {
3069         int i;
3070         float f;
3071         int numleafs, numsurfaces;
3072         int *leaflist, *surfacelist;
3073         unsigned char *leafpvs, *shadowtrispvs, *lighttrispvs;
3074         int numlightentities;
3075         int numlightentities_noselfshadow;
3076         int numshadowentities;
3077         int numshadowentities_noselfshadow;
3078         static entity_render_t *lightentities[MAX_EDICTS];
3079         static entity_render_t *lightentities_noselfshadow[MAX_EDICTS];
3080         static entity_render_t *shadowentities[MAX_EDICTS];
3081         static entity_render_t *shadowentities_noselfshadow[MAX_EDICTS];
3082
3083         // skip lights that don't light because of ambientscale+diffusescale+specularscale being 0 (corona only lights)
3084         // skip lights that are basically invisible (color 0 0 0)
3085         if (VectorLength2(rtlight->color) * (rtlight->ambientscale + rtlight->diffusescale + rtlight->specularscale) < (1.0f / 1048576.0f))
3086                 return;
3087
3088         // loading is done before visibility checks because loading should happen
3089         // all at once at the start of a level, not when it stalls gameplay.
3090         // (especially important to benchmarks)
3091         // compile light
3092         if (rtlight->isstatic && !rtlight->compiled && r_shadow_realtime_world_compile.integer)
3093                 R_RTLight_Compile(rtlight);
3094         // load cubemap
3095         rtlight->currentcubemap = rtlight->cubemapname[0] ? R_Shadow_Cubemap(rtlight->cubemapname) : r_texture_whitecube;
3096
3097         // look up the light style value at this time
3098         f = (rtlight->style >= 0 ? r_refdef.scene.rtlightstylevalue[rtlight->style] : 1) * r_shadow_lightintensityscale.value;
3099         VectorScale(rtlight->color, f, rtlight->currentcolor);
3100         /*
3101         if (rtlight->selected)
3102         {
3103                 f = 2 + sin(realtime * M_PI * 4.0);
3104                 VectorScale(rtlight->currentcolor, f, rtlight->currentcolor);
3105         }
3106         */
3107
3108         // if lightstyle is currently off, don't draw the light
3109         if (VectorLength2(rtlight->currentcolor) < (1.0f / 1048576.0f))
3110                 return;
3111
3112         // if the light box is offscreen, skip it
3113         if (R_CullBox(rtlight->cullmins, rtlight->cullmaxs))
3114                 return;
3115
3116         VectorCopy(rtlight->cullmins, rsurface.rtlight_cullmins);
3117         VectorCopy(rtlight->cullmaxs, rsurface.rtlight_cullmaxs);
3118
3119         if (rtlight->compiled && r_shadow_realtime_world_compile.integer)
3120         {
3121                 // compiled light, world available and can receive realtime lighting
3122                 // retrieve leaf information
3123                 numleafs = rtlight->static_numleafs;
3124                 leaflist = rtlight->static_leaflist;
3125                 leafpvs = rtlight->static_leafpvs;
3126                 numsurfaces = rtlight->static_numsurfaces;
3127                 surfacelist = rtlight->static_surfacelist;
3128                 shadowtrispvs = rtlight->static_shadowtrispvs;
3129                 lighttrispvs = rtlight->static_lighttrispvs;
3130         }
3131         else if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->GetLightInfo)
3132         {
3133                 // dynamic light, world available and can receive realtime lighting
3134                 // calculate lit surfaces and leafs
3135                 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);
3136                 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);
3137                 leaflist = r_shadow_buffer_leaflist;
3138                 leafpvs = r_shadow_buffer_leafpvs;
3139                 surfacelist = r_shadow_buffer_surfacelist;
3140                 shadowtrispvs = r_shadow_buffer_shadowtrispvs;
3141                 lighttrispvs = r_shadow_buffer_lighttrispvs;
3142                 // if the reduced leaf bounds are offscreen, skip it
3143                 if (R_CullBox(rsurface.rtlight_cullmins, rsurface.rtlight_cullmaxs))
3144                         return;
3145         }
3146         else
3147         {
3148                 // no world
3149                 numleafs = 0;
3150                 leaflist = NULL;
3151                 leafpvs = NULL;
3152                 numsurfaces = 0;
3153                 surfacelist = NULL;
3154                 shadowtrispvs = NULL;
3155                 lighttrispvs = NULL;
3156         }
3157         // check if light is illuminating any visible leafs
3158         if (numleafs)
3159         {
3160                 for (i = 0;i < numleafs;i++)
3161                         if (r_refdef.viewcache.world_leafvisible[leaflist[i]])
3162                                 break;
3163                 if (i == numleafs)
3164                         return;
3165         }
3166         // set up a scissor rectangle for this light
3167         if (R_Shadow_ScissorForBBox(rsurface.rtlight_cullmins, rsurface.rtlight_cullmaxs))
3168                 return;
3169
3170         R_Shadow_ComputeShadowCasterCullingPlanes(rtlight);
3171
3172         // make a list of lit entities and shadow casting entities
3173         numlightentities = 0;
3174         numlightentities_noselfshadow = 0;
3175         numshadowentities = 0;
3176         numshadowentities_noselfshadow = 0;
3177         // add dynamic entities that are lit by the light
3178         if (r_drawentities.integer)
3179         {
3180                 for (i = 0;i < r_refdef.scene.numentities;i++)
3181                 {
3182                         dp_model_t *model;
3183                         entity_render_t *ent = r_refdef.scene.entities[i];
3184                         vec3_t org;
3185                         if (!BoxesOverlap(ent->mins, ent->maxs, rsurface.rtlight_cullmins, rsurface.rtlight_cullmaxs))
3186                                 continue;
3187                         // skip the object entirely if it is not within the valid
3188                         // shadow-casting region (which includes the lit region)
3189                         if (R_CullBoxCustomPlanes(ent->mins, ent->maxs, rsurface.rtlight_numfrustumplanes, rsurface.rtlight_frustumplanes))
3190                                 continue;
3191                         if (!(model = ent->model))
3192                                 continue;
3193                         if (r_refdef.viewcache.entityvisible[i] && model->DrawLight && (ent->flags & RENDER_LIGHT))
3194                         {
3195                                 // this entity wants to receive light, is visible, and is
3196                                 // inside the light box
3197                                 // TODO: check if the surfaces in the model can receive light
3198                                 // so now check if it's in a leaf seen by the light
3199                                 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))
3200                                         continue;
3201                                 if (ent->flags & RENDER_NOSELFSHADOW)
3202                                         lightentities_noselfshadow[numlightentities_noselfshadow++] = ent;
3203                                 else
3204                                         lightentities[numlightentities++] = ent;
3205                                 // since it is lit, it probably also casts a shadow...
3206                                 // about the VectorDistance2 - light emitting entities should not cast their own shadow
3207                                 Matrix4x4_OriginFromMatrix(&ent->matrix, org);
3208                                 if ((ent->flags & RENDER_SHADOW) && model->DrawShadowVolume && VectorDistance2(org, rtlight->shadoworigin) > 0.1)
3209                                 {
3210                                         // note: exterior models without the RENDER_NOSELFSHADOW
3211                                         // flag still create a RENDER_NOSELFSHADOW shadow but
3212                                         // are lit normally, this means that they are
3213                                         // self-shadowing but do not shadow other
3214                                         // RENDER_NOSELFSHADOW entities such as the gun
3215                                         // (very weird, but keeps the player shadow off the gun)
3216                                         if (ent->flags & (RENDER_NOSELFSHADOW | RENDER_EXTERIORMODEL))
3217                                                 shadowentities_noselfshadow[numshadowentities_noselfshadow++] = ent;
3218                                         else
3219                                                 shadowentities[numshadowentities++] = ent;
3220                                 }
3221                         }
3222                         else if (ent->flags & RENDER_SHADOW)
3223                         {
3224                                 // this entity is not receiving light, but may still need to
3225                                 // cast a shadow...
3226                                 // TODO: check if the surfaces in the model can cast shadow
3227                                 // now check if it is in a leaf seen by the light
3228                                 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))
3229                                         continue;
3230                                 // about the VectorDistance2 - light emitting entities should not cast their own shadow
3231                                 Matrix4x4_OriginFromMatrix(&ent->matrix, org);
3232                                 if ((ent->flags & RENDER_SHADOW) && model->DrawShadowVolume && VectorDistance2(org, rtlight->shadoworigin) > 0.1)
3233                                 {
3234                                         if (ent->flags & (RENDER_NOSELFSHADOW | RENDER_EXTERIORMODEL))
3235                                                 shadowentities_noselfshadow[numshadowentities_noselfshadow++] = ent;
3236                                         else
3237                                                 shadowentities[numshadowentities++] = ent;
3238                                 }
3239                         }
3240                 }
3241         }
3242
3243         // return if there's nothing at all to light
3244         if (!numlightentities && !numsurfaces)
3245                 return;
3246
3247         // don't let sound skip if going slow
3248         if (r_refdef.scene.extraupdate)
3249                 S_ExtraUpdate ();
3250
3251         // make this the active rtlight for rendering purposes
3252         R_Shadow_RenderMode_ActiveLight(rtlight);
3253         // count this light in the r_speeds
3254         r_refdef.stats.lights++;
3255
3256         if (r_showshadowvolumes.integer && r_refdef.view.showdebug && numsurfaces + numshadowentities + numshadowentities_noselfshadow && rtlight->shadow && (rtlight->isstatic ? r_refdef.scene.rtworldshadows : r_refdef.scene.rtdlightshadows))
3257         {
3258                 // optionally draw visible shape of the shadow volumes
3259                 // for performance analysis by level designers
3260                 R_Shadow_RenderMode_VisibleShadowVolumes();
3261                 if (numsurfaces)
3262                         R_Shadow_DrawWorldShadow(numsurfaces, surfacelist, shadowtrispvs);
3263                 for (i = 0;i < numshadowentities;i++)
3264                         R_Shadow_DrawEntityShadow(shadowentities[i]);
3265                 for (i = 0;i < numshadowentities_noselfshadow;i++)
3266                         R_Shadow_DrawEntityShadow(shadowentities_noselfshadow[i]);
3267         }
3268
3269         if (gl_stencil && numsurfaces + numshadowentities + numshadowentities_noselfshadow && rtlight->shadow && (rtlight->isstatic ? r_refdef.scene.rtworldshadows : r_refdef.scene.rtdlightshadows))
3270         {
3271                 // draw stencil shadow volumes to mask off pixels that are in shadow
3272                 // so that they won't receive lighting
3273                 R_Shadow_ClearStencil();
3274                 if (numsurfaces)
3275                         R_Shadow_DrawWorldShadow(numsurfaces, surfacelist, shadowtrispvs);
3276                 for (i = 0;i < numshadowentities;i++)
3277                         R_Shadow_DrawEntityShadow(shadowentities[i]);
3278                 if (numlightentities_noselfshadow)
3279                 {
3280                         // draw lighting in the unmasked areas
3281                         R_Shadow_RenderMode_Lighting(true, false);
3282                         for (i = 0;i < numlightentities_noselfshadow;i++)
3283                                 R_Shadow_DrawEntityLight(lightentities_noselfshadow[i]);
3284
3285                         // optionally draw the illuminated areas
3286                         // for performance analysis by level designers
3287                         if (r_showlighting.integer && r_refdef.view.showdebug)
3288                         {
3289                                 R_Shadow_RenderMode_VisibleLighting(!r_showdisabledepthtest.integer, false);
3290                                 for (i = 0;i < numlightentities_noselfshadow;i++)
3291                                         R_Shadow_DrawEntityLight(lightentities_noselfshadow[i]);
3292                         }
3293                 }
3294                 for (i = 0;i < numshadowentities_noselfshadow;i++)
3295                         R_Shadow_DrawEntityShadow(shadowentities_noselfshadow[i]);
3296
3297                 if (numsurfaces + numlightentities)
3298                 {
3299                         // draw lighting in the unmasked areas
3300                         R_Shadow_RenderMode_Lighting(true, false);
3301                         if (numsurfaces)
3302                                 R_Shadow_DrawWorldLight(numsurfaces, surfacelist, lighttrispvs);
3303                         for (i = 0;i < numlightentities;i++)
3304                                 R_Shadow_DrawEntityLight(lightentities[i]);
3305
3306                         // optionally draw the illuminated areas
3307                         // for performance analysis by level designers
3308                         if (r_showlighting.integer && r_refdef.view.showdebug)
3309                         {
3310                                 R_Shadow_RenderMode_VisibleLighting(!r_showdisabledepthtest.integer, false);
3311                                 if (numsurfaces)
3312                                         R_Shadow_DrawWorldLight(numsurfaces, surfacelist, lighttrispvs);
3313                                 for (i = 0;i < numlightentities;i++)
3314                                         R_Shadow_DrawEntityLight(lightentities[i]);
3315                         }
3316                 }
3317         }
3318         else
3319         {
3320                 if (numsurfaces + numlightentities)
3321                 {
3322                         // draw lighting in the unmasked areas
3323                         R_Shadow_RenderMode_Lighting(false, false);
3324                         if (numsurfaces)
3325                                 R_Shadow_DrawWorldLight(numsurfaces, surfacelist, lighttrispvs);
3326                         for (i = 0;i < numlightentities;i++)
3327                                 R_Shadow_DrawEntityLight(lightentities[i]);
3328                         for (i = 0;i < numlightentities_noselfshadow;i++)
3329                                 R_Shadow_DrawEntityLight(lightentities_noselfshadow[i]);
3330
3331                         // optionally draw the illuminated areas
3332                         // for performance analysis by level designers
3333                         if (r_showlighting.integer && r_refdef.view.showdebug)
3334                         {
3335                                 R_Shadow_RenderMode_VisibleLighting(false, false);
3336                                 if (numsurfaces)
3337                                         R_Shadow_DrawWorldLight(numsurfaces, surfacelist, lighttrispvs);
3338                                 for (i = 0;i < numlightentities;i++)
3339                                         R_Shadow_DrawEntityLight(lightentities[i]);
3340                                 for (i = 0;i < numlightentities_noselfshadow;i++)
3341                                         R_Shadow_DrawEntityLight(lightentities_noselfshadow[i]);
3342                         }
3343                 }
3344         }
3345 }
3346
3347 void R_Shadow_DrawLightSprites(void);
3348 void R_ShadowVolumeLighting(qboolean visible)
3349 {
3350         int flag;
3351         int lnum;
3352         size_t lightindex;
3353         dlight_t *light;
3354         size_t range;
3355
3356         if (r_editlights.integer)
3357                 R_Shadow_DrawLightSprites();
3358
3359         R_Shadow_RenderMode_Begin();
3360
3361         flag = r_refdef.scene.rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE;
3362         if (r_shadow_debuglight.integer >= 0)
3363         {
3364                 lightindex = r_shadow_debuglight.integer;
3365                 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
3366                 if (light && (light->flags & flag))
3367                         R_DrawRTLight(&light->rtlight, visible);
3368         }
3369         else
3370         {
3371                 range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
3372                 for (lightindex = 0;lightindex < range;lightindex++)
3373                 {
3374                         light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
3375                         if (light && (light->flags & flag))
3376                                 R_DrawRTLight(&light->rtlight, visible);
3377                 }
3378         }
3379         if (r_refdef.scene.rtdlight)
3380                 for (lnum = 0;lnum < r_refdef.scene.numlights;lnum++)
3381                         R_DrawRTLight(r_refdef.scene.lights[lnum], visible);
3382
3383         R_Shadow_RenderMode_End();
3384 }
3385
3386 extern void R_SetupView(qboolean allowwaterclippingplane);
3387 extern cvar_t r_shadows;
3388 extern cvar_t r_shadows_throwdistance;
3389 void R_DrawModelShadows(void)
3390 {
3391         int i;
3392         float relativethrowdistance;
3393         entity_render_t *ent;
3394         vec3_t relativelightorigin;
3395         vec3_t relativelightdirection;
3396         vec3_t relativeshadowmins, relativeshadowmaxs;
3397         vec3_t tmp;
3398         float vertex3f[12];
3399
3400         if (!r_drawentities.integer || !gl_stencil)
3401                 return;
3402
3403         CHECKGLERROR
3404         GL_Scissor(r_refdef.view.x, r_refdef.view.y, r_refdef.view.width, r_refdef.view.height);
3405
3406         r_shadow_rendermode = R_SHADOW_RENDERMODE_NONE;
3407
3408         if (gl_ext_separatestencil.integer)
3409         {
3410                 r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_ZPASS_SEPARATESTENCIL;
3411                 r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_ZFAIL_SEPARATESTENCIL;
3412         }
3413         else if (gl_ext_stenciltwoside.integer)
3414         {
3415                 r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE;
3416                 r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_ZFAIL_STENCILTWOSIDE;
3417         }
3418         else
3419         {
3420                 r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_ZPASS_STENCIL;
3421                 r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_ZFAIL_STENCIL;
3422         }
3423
3424         R_Shadow_ClearStencil();
3425
3426         for (i = 0;i < r_refdef.scene.numentities;i++)
3427         {
3428                 ent = r_refdef.scene.entities[i];
3429                 // cast shadows from anything that is not a submodel of the map
3430                 if (ent->model && ent->model->DrawShadowVolume != NULL && !ent->model->brush.submodel && (ent->flags & RENDER_SHADOW))
3431                 {
3432                         relativethrowdistance = r_shadows_throwdistance.value * Matrix4x4_ScaleFromMatrix(&ent->inversematrix);
3433                         VectorSet(relativeshadowmins, -relativethrowdistance, -relativethrowdistance, -relativethrowdistance);
3434                         VectorSet(relativeshadowmaxs, relativethrowdistance, relativethrowdistance, relativethrowdistance);
3435
3436                         if(r_shadows.integer == 2)
3437                         {
3438                                 // 2: simpler mode, throw shadows always DOWN
3439                                 VectorSet(tmp, 0, 0, -1);
3440                                 Matrix4x4_Transform3x3(&ent->inversematrix, tmp, relativelightdirection);
3441                         }
3442                         else
3443                         {
3444                                 if(ent->entitynumber != 0)
3445                                 {
3446                                         // networked entity - might be attached in some way (then we should use the parent's light direction, to not tear apart attached entities)
3447                                         int entnum, entnum2, recursion;
3448                                         entnum = entnum2 = ent->entitynumber;
3449                                         for(recursion = 32; recursion > 0; --recursion)
3450                                         {
3451                                                 entnum2 = cl.entities[entnum].state_current.tagentity;
3452                                                 if(entnum2 >= 1 && entnum2 < cl.num_entities && cl.entities_active[entnum2])
3453                                                         entnum = entnum2;
3454                                                 else
3455                                                         break;
3456                                         }
3457                                         if(recursion && recursion != 32) // if we followed a valid non-empty attachment chain
3458                                         {
3459                                                 VectorNegate(cl.entities[entnum].render.modellight_lightdir, relativelightdirection);
3460                                                 // transform into modelspace of OUR entity
3461                                                 Matrix4x4_Transform3x3(&cl.entities[entnum].render.matrix, relativelightdirection, tmp);
3462                                                 Matrix4x4_Transform3x3(&ent->inversematrix, tmp, relativelightdirection);
3463                                         }
3464                                         else
3465                                                 VectorNegate(ent->modellight_lightdir, relativelightdirection);
3466                                 }
3467                                 else
3468                                         VectorNegate(ent->modellight_lightdir, relativelightdirection);
3469                         }
3470
3471                         VectorScale(relativelightdirection, -relativethrowdistance, relativelightorigin);
3472                         RSurf_ActiveModelEntity(ent, false, false);
3473                         ent->model->DrawShadowVolume(ent, relativelightorigin, relativelightdirection, relativethrowdistance, ent->model->nummodelsurfaces, ent->model->sortedmodelsurfaces, relativeshadowmins, relativeshadowmaxs);
3474                         rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
3475                 }
3476         }
3477
3478         // not really the right mode, but this will disable any silly stencil features
3479         R_Shadow_RenderMode_VisibleLighting(true, true);
3480
3481         // vertex coordinates for a quad that covers the screen exactly
3482         vertex3f[0] = 0;vertex3f[1] = 0;vertex3f[2] = 0;
3483         vertex3f[3] = 1;vertex3f[4] = 0;vertex3f[5] = 0;
3484         vertex3f[6] = 1;vertex3f[7] = 1;vertex3f[8] = 0;
3485         vertex3f[9] = 0;vertex3f[10] = 1;vertex3f[11] = 0;
3486
3487         // set up ortho view for rendering this pass
3488         GL_SetupView_Mode_Ortho(0, 0, 1, 1, -10, 100);
3489         GL_Scissor(r_refdef.view.x, r_refdef.view.y, r_refdef.view.width, r_refdef.view.height);
3490         GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
3491         GL_ScissorTest(true);
3492         R_Mesh_Matrix(&identitymatrix);
3493         R_Mesh_ResetTextureState();
3494         R_Mesh_VertexPointer(vertex3f, 0, 0);
3495         R_Mesh_ColorPointer(NULL, 0, 0);
3496
3497         // set up a 50% darkening blend on shadowed areas
3498         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
3499         GL_DepthRange(0, 1);
3500         GL_DepthTest(false);
3501         GL_DepthMask(false);
3502         GL_PolygonOffset(0, 0);CHECKGLERROR
3503         GL_Color(0, 0, 0, 0.5);
3504         GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
3505         qglDepthFunc(GL_ALWAYS);CHECKGLERROR
3506         qglEnable(GL_STENCIL_TEST);CHECKGLERROR
3507         qglStencilMask(~0);CHECKGLERROR
3508         qglStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);CHECKGLERROR
3509         qglStencilFunc(GL_NOTEQUAL, 128, ~0);CHECKGLERROR
3510
3511         // apply the blend to the shadowed areas
3512         R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
3513
3514         // restoring the perspective view is done by R_RenderScene
3515         //R_SetupView(true);
3516
3517         // restore other state to normal
3518         R_Shadow_RenderMode_End();
3519 }
3520
3521 void R_BeginCoronaQuery(rtlight_t *rtlight, float scale, qboolean usequery)
3522 {
3523         float zdist;
3524         vec3_t centerorigin;
3525         // if it's too close, skip it
3526         if (VectorLength(rtlight->color) < (1.0f / 256.0f))
3527                 return;
3528         zdist = (DotProduct(rtlight->shadoworigin, r_refdef.view.forward) - DotProduct(r_refdef.view.origin, r_refdef.view.forward));
3529         if (zdist < 32)
3530                 return;
3531         if (usequery && r_numqueries + 2 <= r_maxqueries)
3532         {
3533                 rtlight->corona_queryindex_allpixels = r_queries[r_numqueries++];
3534                 rtlight->corona_queryindex_visiblepixels = r_queries[r_numqueries++];
3535                 VectorMA(r_refdef.view.origin, zdist, r_refdef.view.forward, centerorigin);
3536
3537                 CHECKGLERROR
3538                 // 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
3539                 qglBeginQueryARB(GL_SAMPLES_PASSED_ARB, rtlight->corona_queryindex_allpixels);
3540                 qglDepthFunc(GL_ALWAYS);
3541                 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);
3542                 qglEndQueryARB(GL_SAMPLES_PASSED_ARB);
3543                 qglDepthFunc(GL_LEQUAL);
3544                 qglBeginQueryARB(GL_SAMPLES_PASSED_ARB, rtlight->corona_queryindex_visiblepixels);
3545                 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);
3546                 qglEndQueryARB(GL_SAMPLES_PASSED_ARB);
3547                 CHECKGLERROR
3548         }
3549         rtlight->corona_visibility = bound(0, (zdist - 32) / 32, 1);
3550 }
3551
3552 void R_DrawCorona(rtlight_t *rtlight, float cscale, float scale)
3553 {
3554         vec3_t color;
3555         GLint allpixels = 0, visiblepixels = 0;
3556         // now we have to check the query result
3557         if (rtlight->corona_queryindex_visiblepixels)
3558         {
3559                 CHECKGLERROR
3560                 qglGetQueryObjectivARB(rtlight->corona_queryindex_visiblepixels, GL_QUERY_RESULT_ARB, &visiblepixels);
3561                 qglGetQueryObjectivARB(rtlight->corona_queryindex_allpixels, GL_QUERY_RESULT_ARB, &allpixels);
3562                 CHECKGLERROR
3563                 //Con_Printf("%i of %i pixels\n", (int)visiblepixels, (int)allpixels);
3564                 if (visiblepixels < 1 || allpixels < 1)
3565                         return;
3566                 rtlight->corona_visibility *= bound(0, (float)visiblepixels / (float)allpixels, 1);
3567                 cscale *= rtlight->corona_visibility;
3568         }
3569         else
3570         {
3571                 // FIXME: these traces should scan all render entities instead of cl.world
3572                 if (CL_Move(r_refdef.view.origin, vec3_origin, vec3_origin, rtlight->shadoworigin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction < 1)
3573                         return;
3574         }
3575         VectorScale(rtlight->color, cscale, color);
3576         if (VectorLength(color) > (1.0f / 256.0f))
3577                 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);
3578 }
3579
3580 void R_DrawCoronas(void)
3581 {
3582         int i, flag;
3583         qboolean usequery;
3584         size_t lightindex;
3585         dlight_t *light;
3586         rtlight_t *rtlight;
3587         size_t range;
3588         if (r_coronas.value < (1.0f / 256.0f) && !gl_flashblend.integer)
3589                 return;
3590         if (r_waterstate.renderingscene)
3591                 return;
3592         flag = r_refdef.scene.rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE;
3593         R_Mesh_Matrix(&identitymatrix);
3594
3595         range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
3596
3597         // check occlusion of coronas
3598         // use GL_ARB_occlusion_query if available
3599         // otherwise use raytraces
3600         r_numqueries = 0;
3601         usequery = gl_support_arb_occlusion_query && r_coronas_occlusionquery.integer;
3602         if (usequery)
3603         {
3604                 GL_ColorMask(0,0,0,0);
3605                 if (r_maxqueries < (range + r_refdef.scene.numlights) * 2)
3606                 if (r_maxqueries < R_MAX_OCCLUSION_QUERIES)
3607                 {
3608                         i = r_maxqueries;
3609                         r_maxqueries = (range + r_refdef.scene.numlights) * 4;
3610                         r_maxqueries = min(r_maxqueries, R_MAX_OCCLUSION_QUERIES);
3611                         CHECKGLERROR
3612                         qglGenQueriesARB(r_maxqueries - i, r_queries + i);
3613                         CHECKGLERROR
3614                 }
3615         }
3616         for (lightindex = 0;lightindex < range;lightindex++)
3617         {
3618                 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
3619                 if (!light)
3620                         continue;
3621                 rtlight = &light->rtlight;
3622                 rtlight->corona_visibility = 0;
3623                 rtlight->corona_queryindex_visiblepixels = 0;
3624                 rtlight->corona_queryindex_allpixels = 0;
3625                 if (!(rtlight->flags & flag))
3626                         continue;
3627                 if (rtlight->corona <= 0)
3628                         continue;
3629                 if (r_shadow_debuglight.integer >= 0 && r_shadow_debuglight.integer != (int)lightindex)
3630                         continue;
3631                 R_BeginCoronaQuery(rtlight, rtlight->radius * rtlight->coronasizescale * r_coronas_occlusionsizescale.value, usequery);
3632         }
3633         for (i = 0;i < r_refdef.scene.numlights;i++)
3634         {
3635                 rtlight = r_refdef.scene.lights[i];
3636                 rtlight->corona_visibility = 0;
3637                 rtlight->corona_queryindex_visiblepixels = 0;
3638                 rtlight->corona_queryindex_allpixels = 0;
3639                 if (!(rtlight->flags & flag))
3640                         continue;
3641                 if (rtlight->corona <= 0)
3642                         continue;
3643                 R_BeginCoronaQuery(rtlight, rtlight->radius * rtlight->coronasizescale * r_coronas_occlusionsizescale.value, usequery);
3644         }
3645         if (usequery)
3646                 GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
3647
3648         // now draw the coronas using the query data for intensity info
3649         for (lightindex = 0;lightindex < range;lightindex++)
3650         {
3651                 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
3652                 if (!light)
3653                         continue;
3654                 rtlight = &light->rtlight;
3655                 if (rtlight->corona_visibility <= 0)
3656                         continue;
3657                 R_DrawCorona(rtlight, rtlight->corona * r_coronas.value * 0.25f, rtlight->radius * rtlight->coronasizescale);
3658         }
3659         for (i = 0;i < r_refdef.scene.numlights;i++)
3660         {
3661                 rtlight = r_refdef.scene.lights[i];
3662                 if (rtlight->corona_visibility <= 0)
3663                         continue;
3664                 if (gl_flashblend.integer)
3665                         R_DrawCorona(rtlight, rtlight->corona, rtlight->radius * rtlight->coronasizescale * 2.0f);
3666                 else
3667                         R_DrawCorona(rtlight, rtlight->corona * r_coronas.value * 0.25f, rtlight->radius * rtlight->coronasizescale);
3668         }
3669 }
3670
3671
3672
3673 //static char *suffix[6] = {"ft", "bk", "rt", "lf", "up", "dn"};
3674 typedef struct suffixinfo_s
3675 {
3676         char *suffix;
3677         qboolean flipx, flipy, flipdiagonal;
3678 }
3679 suffixinfo_t;
3680 static suffixinfo_t suffix[3][6] =
3681 {
3682         {
3683                 {"px",   false, false, false},
3684                 {"nx",   false, false, false},
3685                 {"py",   false, false, false},
3686                 {"ny",   false, false, false},
3687                 {"pz",   false, false, false},
3688                 {"nz",   false, false, false}
3689         },
3690         {
3691                 {"posx", false, false, false},
3692                 {"negx", false, false, false},
3693                 {"posy", false, false, false},
3694                 {"negy", false, false, false},
3695                 {"posz", false, false, false},
3696                 {"negz", false, false, false}
3697         },
3698         {
3699                 {"rt",    true, false,  true},
3700                 {"lf",   false,  true,  true},
3701                 {"ft",    true,  true, false},
3702                 {"bk",   false, false, false},
3703                 {"up",    true, false,  true},
3704                 {"dn",    true, false,  true}
3705         }
3706 };
3707
3708 static int componentorder[4] = {0, 1, 2, 3};
3709
3710 rtexture_t *R_Shadow_LoadCubemap(const char *basename)
3711 {
3712         int i, j, cubemapsize;
3713         unsigned char *cubemappixels, *image_buffer;
3714         rtexture_t *cubemaptexture;
3715         char name[256];
3716         // must start 0 so the first loadimagepixels has no requested width/height
3717         cubemapsize = 0;
3718         cubemappixels = NULL;
3719         cubemaptexture = NULL;
3720         // keep trying different suffix groups (posx, px, rt) until one loads
3721         for (j = 0;j < 3 && !cubemappixels;j++)
3722         {
3723                 // load the 6 images in the suffix group
3724                 for (i = 0;i < 6;i++)
3725                 {
3726                         // generate an image name based on the base and and suffix
3727                         dpsnprintf(name, sizeof(name), "%s%s", basename, suffix[j][i].suffix);
3728                         // load it
3729                         if ((image_buffer = loadimagepixelsbgra(name, false, false)))
3730                         {
3731                                 // an image loaded, make sure width and height are equal
3732                                 if (image_width == image_height && (!cubemappixels || image_width == cubemapsize))
3733                                 {
3734                                         // if this is the first image to load successfully, allocate the cubemap memory
3735                                         if (!cubemappixels && image_width >= 1)
3736                                         {
3737                                                 cubemapsize = image_width;
3738                                                 // note this clears to black, so unavailable sides are black
3739                                                 cubemappixels = (unsigned char *)Mem_Alloc(tempmempool, 6*cubemapsize*cubemapsize*4);
3740                                         }
3741                                         // copy the image with any flipping needed by the suffix (px and posx types don't need flipping)
3742                                         if (cubemappixels)
3743                                                 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);
3744                                 }
3745                                 else
3746                                         Con_Printf("Cubemap image \"%s\" (%ix%i) is not square, OpenGL requires square cubemaps.\n", name, image_width, image_height);
3747                                 // free the image
3748                                 Mem_Free(image_buffer);
3749                         }
3750                 }
3751         }
3752         // if a cubemap loaded, upload it
3753         if (cubemappixels)
3754         {
3755                 if (developer_loading.integer)
3756                         Con_Printf("loading cubemap \"%s\"\n", basename);
3757
3758                 if (!r_shadow_filters_texturepool)
3759                         r_shadow_filters_texturepool = R_AllocTexturePool();
3760                 cubemaptexture = R_LoadTextureCubeMap(r_shadow_filters_texturepool, basename, cubemapsize, cubemappixels, TEXTYPE_BGRA, TEXF_PRECACHE | (gl_texturecompression_lightcubemaps.integer ? TEXF_COMPRESS : 0) | TEXF_FORCELINEAR, NULL);
3761                 Mem_Free(cubemappixels);
3762         }
3763         else
3764         {
3765                 Con_DPrintf("failed to load cubemap \"%s\"\n", basename);
3766                 if (developer_loading.integer)
3767                 {
3768                         Con_Printf("(tried tried images ");
3769                         for (j = 0;j < 3;j++)
3770                                 for (i = 0;i < 6;i++)
3771                                         Con_Printf("%s\"%s%s.tga\"", j + i > 0 ? ", " : "", basename, suffix[j][i].suffix);
3772                         Con_Print(" and was unable to find any of them).\n");
3773                 }
3774         }
3775         return cubemaptexture;
3776 }
3777
3778 rtexture_t *R_Shadow_Cubemap(const char *basename)
3779 {
3780         int i;
3781         for (i = 0;i < numcubemaps;i++)
3782                 if (!strcasecmp(cubemaps[i].basename, basename))
3783                         return cubemaps[i].texture ? cubemaps[i].texture : r_texture_whitecube;
3784         if (i >= MAX_CUBEMAPS)
3785                 return r_texture_whitecube;
3786         numcubemaps++;
3787         strlcpy(cubemaps[i].basename, basename, sizeof(cubemaps[i].basename));
3788         cubemaps[i].texture = R_Shadow_LoadCubemap(cubemaps[i].basename);
3789         return cubemaps[i].texture;
3790 }
3791
3792 void R_Shadow_FreeCubemaps(void)
3793 {
3794         int i;
3795         for (i = 0;i < numcubemaps;i++)
3796         {
3797                 if (developer_loading.integer)
3798                         Con_Printf("unloading cubemap \"%s\"\n", cubemaps[i].basename);
3799                 if (cubemaps[i].texture)
3800                         R_FreeTexture(cubemaps[i].texture);
3801         }
3802
3803         numcubemaps = 0;
3804         R_FreeTexturePool(&r_shadow_filters_texturepool);
3805 }
3806
3807 dlight_t *R_Shadow_NewWorldLight(void)
3808 {
3809         return (dlight_t *)Mem_ExpandableArray_AllocRecord(&r_shadow_worldlightsarray);
3810 }
3811
3812 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)
3813 {
3814         matrix4x4_t matrix;
3815         // validate parameters
3816         if (style < 0 || style >= MAX_LIGHTSTYLES)
3817         {
3818                 Con_Printf("R_Shadow_NewWorldLight: invalid light style number %i, must be >= 0 and < %i\n", light->style, MAX_LIGHTSTYLES);
3819                 style = 0;
3820         }
3821         if (!cubemapname)
3822                 cubemapname = "";
3823
3824         // copy to light properties
3825         VectorCopy(origin, light->origin);
3826         light->angles[0] = angles[0] - 360 * floor(angles[0] / 360);
3827         light->angles[1] = angles[1] - 360 * floor(angles[1] / 360);
3828         light->angles[2] = angles[2] - 360 * floor(angles[2] / 360);
3829         light->color[0] = max(color[0], 0);
3830         light->color[1] = max(color[1], 0);
3831         light->color[2] = max(color[2], 0);
3832         light->radius = max(radius, 0);
3833         light->style = style;
3834         light->shadow = shadowenable;
3835         light->corona = corona;
3836         strlcpy(light->cubemapname, cubemapname, sizeof(light->cubemapname));
3837         light->coronasizescale = coronasizescale;
3838         light->ambientscale = ambientscale;
3839         light->diffusescale = diffusescale;
3840         light->specularscale = specularscale;
3841         light->flags = flags;
3842
3843         // update renderable light data
3844         Matrix4x4_CreateFromQuakeEntity(&matrix, light->origin[0], light->origin[1], light->origin[2], light->angles[0], light->angles[1], light->angles[2], light->radius);
3845         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);
3846 }
3847
3848 void R_Shadow_FreeWorldLight(dlight_t *light)
3849 {
3850         if (r_shadow_selectedlight == light)
3851                 r_shadow_selectedlight = NULL;
3852         R_RTLight_Uncompile(&light->rtlight);
3853         Mem_ExpandableArray_FreeRecord(&r_shadow_worldlightsarray, light);
3854 }
3855
3856 void R_Shadow_ClearWorldLights(void)
3857 {
3858         size_t lightindex;
3859         dlight_t *light;
3860         size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
3861         for (lightindex = 0;lightindex < range;lightindex++)
3862         {
3863                 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
3864                 if (light)
3865                         R_Shadow_FreeWorldLight(light);
3866         }
3867         r_shadow_selectedlight = NULL;
3868         R_Shadow_FreeCubemaps();
3869 }
3870
3871 void R_Shadow_SelectLight(dlight_t *light)
3872 {
3873         if (r_shadow_selectedlight)
3874                 r_shadow_selectedlight->selected = false;
3875         r_shadow_selectedlight = light;
3876         if (r_shadow_selectedlight)
3877                 r_shadow_selectedlight->selected = true;
3878 }
3879
3880 void R_Shadow_DrawCursor_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
3881 {
3882         // this is never batched (there can be only one)
3883         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);
3884 }
3885
3886 void R_Shadow_DrawLightSprite_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
3887 {
3888         float intensity;
3889         float s;
3890         vec3_t spritecolor;
3891         cachepic_t *pic;
3892
3893         // this is never batched (due to the ent parameter changing every time)
3894         // so numsurfaces == 1 and surfacelist[0] == lightnumber
3895         const dlight_t *light = (dlight_t *)ent;
3896         s = EDLIGHTSPRSIZE;
3897         intensity = 0.5f;
3898         VectorScale(light->color, intensity, spritecolor);
3899         if (VectorLength(spritecolor) < 0.1732f)
3900                 VectorSet(spritecolor, 0.1f, 0.1f, 0.1f);
3901         if (VectorLength(spritecolor) > 1.0f)
3902                 VectorNormalize(spritecolor);
3903
3904         // draw light sprite
3905         if (light->cubemapname[0] && !light->shadow)
3906                 pic = r_editlights_sprcubemapnoshadowlight;
3907         else if (light->cubemapname[0])
3908                 pic = r_editlights_sprcubemaplight;
3909         else if (!light->shadow)
3910                 pic = r_editlights_sprnoshadowlight;
3911         else
3912                 pic = r_editlights_sprlight;
3913         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);
3914         // draw selection sprite if light is selected
3915         if (light->selected)
3916                 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);
3917         // VorteX todo: add normalmode/realtime mode light overlay sprites?
3918 }
3919
3920 void R_Shadow_DrawLightSprites(void)
3921 {
3922         size_t lightindex;
3923         dlight_t *light;
3924         size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
3925         for (lightindex = 0;lightindex < range;lightindex++)
3926         {
3927                 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
3928                 if (light)
3929                         R_MeshQueue_AddTransparent(light->origin, R_Shadow_DrawLightSprite_TransparentCallback, (entity_render_t *)light, 5, &light->rtlight);
3930         }
3931         R_MeshQueue_AddTransparent(r_editlights_cursorlocation, R_Shadow_DrawCursor_TransparentCallback, NULL, 0, NULL);
3932 }
3933
3934 void R_Shadow_SelectLightInView(void)
3935 {
3936         float bestrating, rating, temp[3];
3937         dlight_t *best;
3938         size_t lightindex;
3939         dlight_t *light;
3940         size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
3941         best = NULL;
3942         bestrating = 0;
3943         for (lightindex = 0;lightindex < range;lightindex++)
3944         {
3945                 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
3946                 if (!light)
3947                         continue;
3948                 VectorSubtract(light->origin, r_refdef.view.origin, temp);
3949                 rating = (DotProduct(temp, r_refdef.view.forward) / sqrt(DotProduct(temp, temp)));
3950                 if (rating >= 0.95)
3951                 {
3952                         rating /= (1 + 0.0625f * sqrt(DotProduct(temp, temp)));
3953                         if (bestrating < rating && CL_Move(light->origin, vec3_origin, vec3_origin, r_refdef.view.origin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction == 1.0f)
3954                         {
3955                                 bestrating = rating;
3956                                 best = light;
3957                         }
3958                 }
3959         }
3960         R_Shadow_SelectLight(best);
3961 }
3962
3963 void R_Shadow_LoadWorldLights(void)
3964 {
3965         int n, a, style, shadow, flags;
3966         char tempchar, *lightsstring, *s, *t, name[MAX_QPATH], cubemapname[MAX_QPATH];
3967         float origin[3], radius, color[3], angles[3], corona, coronasizescale, ambientscale, diffusescale, specularscale;
3968         if (cl.worldmodel == NULL)
3969         {
3970                 Con_Print("No map loaded.\n");
3971                 return;
3972         }
3973         FS_StripExtension (cl.worldmodel->name, name, sizeof (name));
3974         strlcat (name, ".rtlights", sizeof (name));
3975         lightsstring = (char *)FS_LoadFile(name, tempmempool, false, NULL);
3976         if (lightsstring)
3977         {
3978                 s = lightsstring;
3979                 n = 0;
3980                 while (*s)
3981                 {
3982                         t = s;
3983                         /*
3984                         shadow = true;
3985                         for (;COM_Parse(t, true) && strcmp(
3986                         if (COM_Parse(t, true))
3987                         {
3988                                 if (com_token[0] == '!')
3989                                 {
3990                                         shadow = false;
3991                                         origin[0] = atof(com_token+1);
3992                                 }
3993                                 else
3994                                         origin[0] = atof(com_token);
3995                                 if (Com_Parse(t
3996                         }
3997                         */
3998                         t = s;
3999                         while (*s && *s != '\n' && *s != '\r')
4000                                 s++;
4001                         if (!*s)
4002                                 break;
4003                         tempchar = *s;
4004                         shadow = true;
4005                         // check for modifier flags
4006                         if (*t == '!')
4007                         {
4008                                 shadow = false;
4009                                 t++;
4010                         }
4011                         *s = 0;
4012 #if _MSC_VER >= 1400
4013 #define sscanf sscanf_s
4014 #endif
4015                         cubemapname[sizeof(cubemapname)-1] = 0;
4016 #if MAX_QPATH != 128
4017 #error update this code if MAX_QPATH changes
4018 #endif
4019                         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
4020 #if _MSC_VER >= 1400
4021 , sizeof(cubemapname)
4022 #endif
4023 , &corona, &angles[0], &angles[1], &angles[2], &coronasizescale, &ambientscale, &diffusescale, &specularscale, &flags);
4024                         *s = tempchar;
4025                         if (a < 18)
4026                                 flags = LIGHTFLAG_REALTIMEMODE;
4027                         if (a < 17)
4028                                 specularscale = 1;
4029                         if (a < 16)
4030                                 diffusescale = 1;
4031                         if (a < 15)
4032                                 ambientscale = 0;
4033                         if (a < 14)
4034                                 coronasizescale = 0.25f;
4035                         if (a < 13)
4036                                 VectorClear(angles);
4037                         if (a < 10)
4038                                 corona = 0;
4039                         if (a < 9 || !strcmp(cubemapname, "\"\""))
4040                                 cubemapname[0] = 0;
4041                         // remove quotes on cubemapname
4042                         if (cubemapname[0] == '"' && cubemapname[strlen(cubemapname) - 1] == '"')
4043                         {
4044                                 size_t namelen;
4045                                 namelen = strlen(cubemapname) - 2;
4046                                 memmove(cubemapname, cubemapname + 1, namelen);
4047                                 cubemapname[namelen] = '\0';
4048                         }
4049                         if (a < 8)
4050                         {
4051                                 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);
4052                                 break;
4053                         }
4054                         R_Shadow_UpdateWorldLight(R_Shadow_NewWorldLight(), origin, angles, color, radius, corona, style, shadow, cubemapname, coronasizescale, ambientscale, diffusescale, specularscale, flags);
4055                         if (*s == '\r')
4056                                 s++;
4057                         if (*s == '\n')
4058                                 s++;
4059                         n++;
4060                 }
4061                 if (*s)
4062                         Con_Printf("invalid rtlights file \"%s\"\n", name);
4063                 Mem_Free(lightsstring);
4064         }
4065 }
4066
4067 void R_Shadow_SaveWorldLights(void)
4068 {
4069         size_t lightindex;
4070         dlight_t *light;
4071         size_t bufchars, bufmaxchars;
4072         char *buf, *oldbuf;
4073         char name[MAX_QPATH];
4074         char line[MAX_INPUTLINE];
4075         size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked, assuming the dpsnprintf mess doesn't screw it up...
4076         // I hate lines which are 3 times my screen size :( --blub
4077         if (!range)
4078                 return;
4079         if (cl.worldmodel == NULL)
4080         {
4081                 Con_Print("No map loaded.\n");
4082                 return;
4083         }
4084         FS_StripExtension (cl.worldmodel->name, name, sizeof (name));
4085         strlcat (name, ".rtlights", sizeof (name));
4086         bufchars = bufmaxchars = 0;
4087         buf = NULL;
4088         for (lightindex = 0;lightindex < range;lightindex++)
4089         {
4090                 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
4091                 if (!light)
4092                         continue;
4093                 if (light->coronasizescale != 0.25f || light->ambientscale != 0 || light->diffusescale != 1 || light->specularscale != 1 || light->flags != LIGHTFLAG_REALTIMEMODE)
4094                         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);
4095                 else if (light->cubemapname[0] || light->corona || light->angles[0] || light->angles[1] || light->angles[2])
4096                         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]);
4097                 else
4098                         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);
4099                 if (bufchars + strlen(line) > bufmaxchars)
4100                 {
4101                         bufmaxchars = bufchars + strlen(line) + 2048;
4102                         oldbuf = buf;
4103                         buf = (char *)Mem_Alloc(tempmempool, bufmaxchars);
4104                         if (oldbuf)
4105                         {
4106                                 if (bufchars)
4107                                         memcpy(buf, oldbuf, bufchars);
4108                                 Mem_Free(oldbuf);
4109                         }
4110                 }
4111                 if (strlen(line))
4112                 {
4113                         memcpy(buf + bufchars, line, strlen(line));
4114                         bufchars += strlen(line);
4115                 }
4116         }
4117         if (bufchars)
4118                 FS_WriteFile(name, buf, (fs_offset_t)bufchars);
4119         if (buf)
4120                 Mem_Free(buf);
4121 }
4122
4123 void R_Shadow_LoadLightsFile(void)
4124 {
4125         int n, a, style;
4126         char tempchar, *lightsstring, *s, *t, name[MAX_QPATH];
4127         float origin[3], radius, color[3], subtract, spotdir[3], spotcone, falloff, distbias;
4128         if (cl.worldmodel == NULL)
4129         {
4130                 Con_Print("No map loaded.\n");
4131                 return;
4132         }
4133         FS_StripExtension (cl.worldmodel->name, name, sizeof (name));
4134         strlcat (name, ".lights", sizeof (name));
4135         lightsstring = (char *)FS_LoadFile(name, tempmempool, false, NULL);
4136         if (lightsstring)
4137         {
4138                 s = lightsstring;
4139                 n = 0;
4140                 while (*s)
4141                 {
4142                         t = s;
4143                         while (*s && *s != '\n' && *s != '\r')
4144                                 s++;
4145                         if (!*s)
4146                                 break;
4147                         tempchar = *s;
4148                         *s = 0;
4149                         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);
4150                         *s = tempchar;
4151                         if (a < 14)
4152                         {
4153                                 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);
4154                                 break;
4155                         }
4156                         radius = sqrt(DotProduct(color, color) / (falloff * falloff * 8192.0f * 8192.0f));
4157                         radius = bound(15, radius, 4096);
4158                         VectorScale(color, (2.0f / (8388608.0f)), color);
4159                         R_Shadow_UpdateWorldLight(R_Shadow_NewWorldLight(), origin, vec3_origin, color, radius, 0, style, true, NULL, 0.25, 0, 1, 1, LIGHTFLAG_REALTIMEMODE);
4160                         if (*s == '\r')
4161                                 s++;
4162                         if (*s == '\n')
4163                                 s++;
4164                         n++;
4165                 }
4166                 if (*s)
4167                         Con_Printf("invalid lights file \"%s\"\n", name);
4168                 Mem_Free(lightsstring);
4169         }
4170 }
4171
4172 // tyrlite/hmap2 light types in the delay field
4173 typedef enum lighttype_e {LIGHTTYPE_MINUSX, LIGHTTYPE_RECIPX, LIGHTTYPE_RECIPXX, LIGHTTYPE_NONE, LIGHTTYPE_SUN, LIGHTTYPE_MINUSXX} lighttype_t;
4174
4175 void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void)
4176 {
4177         int entnum, style, islight, skin, pflags, effects, type, n;
4178         char *entfiledata;
4179         const char *data;
4180         float origin[3], angles[3], radius, color[3], light[4], fadescale, lightscale, originhack[3], overridecolor[3], vec[4];
4181         char key[256], value[MAX_INPUTLINE];
4182
4183         if (cl.worldmodel == NULL)
4184         {
4185                 Con_Print("No map loaded.\n");
4186                 return;
4187         }
4188         // try to load a .ent file first
4189         FS_StripExtension (cl.worldmodel->name, key, sizeof (key));
4190         strlcat (key, ".ent", sizeof (key));
4191         data = entfiledata = (char *)FS_LoadFile(key, tempmempool, true, NULL);
4192         // and if that is not found, fall back to the bsp file entity string
4193         if (!data)
4194                 data = cl.worldmodel->brush.entities;
4195         if (!data)
4196                 return;
4197         for (entnum = 0;COM_ParseToken_Simple(&data, false, false) && com_token[0] == '{';entnum++)
4198         {
4199                 type = LIGHTTYPE_MINUSX;
4200                 origin[0] = origin[1] = origin[2] = 0;
4201                 originhack[0] = originhack[1] = originhack[2] = 0;
4202                 angles[0] = angles[1] = angles[2] = 0;
4203                 color[0] = color[1] = color[2] = 1;
4204                 light[0] = light[1] = light[2] = 1;light[3] = 300;
4205                 overridecolor[0] = overridecolor[1] = overridecolor[2] = 1;
4206                 fadescale = 1;
4207                 lightscale = 1;
4208                 style = 0;
4209                 skin = 0;
4210                 pflags = 0;
4211                 effects = 0;
4212                 islight = false;
4213                 while (1)
4214                 {
4215                         if (!COM_ParseToken_Simple(&data, false, false))
4216                                 break; // error
4217                         if (com_token[0] == '}')
4218                                 break; // end of entity
4219                         if (com_token[0] == '_')
4220                                 strlcpy(key, com_token + 1, sizeof(key));
4221                         else
4222                                 strlcpy(key, com_token, sizeof(key));
4223                         while (key[strlen(key)-1] == ' ') // remove trailing spaces
4224                                 key[strlen(key)-1] = 0;
4225                         if (!COM_ParseToken_Simple(&data, false, false))
4226                                 break; // error
4227                         strlcpy(value, com_token, sizeof(value));
4228
4229                         // now that we have the key pair worked out...
4230                         if (!strcmp("light", key))
4231                         {
4232                                 n = sscanf(value, "%f %f %f %f", &vec[0], &vec[1], &vec[2], &vec[3]);
4233                                 if (n == 1)
4234                                 {
4235                                         // quake
4236                                         light[0] = vec[0] * (1.0f / 256.0f);
4237                                         light[1] = vec[0] * (1.0f / 256.0f);
4238                                         light[2] = vec[0] * (1.0f / 256.0f);
4239                                         light[3] = vec[0];
4240                                 }
4241                                 else if (n == 4)
4242                                 {
4243                                         // halflife
4244                                         light[0] = vec[0] * (1.0f / 255.0f);
4245                                         light[1] = vec[1] * (1.0f / 255.0f);
4246                                         light[2] = vec[2] * (1.0f / 255.0f);
4247                                         light[3] = vec[3];
4248                                 }
4249                         }
4250                         else if (!strcmp("delay", key))
4251                                 type = atoi(value);
4252                         else if (!strcmp("origin", key))
4253                                 sscanf(value, "%f %f %f", &origin[0], &origin[1], &origin[2]);
4254                         else if (!strcmp("angle", key))
4255                                 angles[0] = 0, angles[1] = atof(value), angles[2] = 0;
4256                         else if (!strcmp("angles", key))
4257                                 sscanf(value, "%f %f %f", &angles[0], &angles[1], &angles[2]);
4258                         else if (!strcmp("color", key))
4259                                 sscanf(value, "%f %f %f", &color[0], &color[1], &color[2]);
4260                         else if (!strcmp("wait", key))
4261                                 fadescale = atof(value);
4262                         else if (!strcmp("classname", key))
4263                         {
4264                                 if (!strncmp(value, "light", 5))
4265                                 {
4266                                         islight = true;
4267                                         if (!strcmp(value, "light_fluoro"))
4268                                         {
4269                                                 originhack[0] = 0;
4270                                                 originhack[1] = 0;
4271                                                 originhack[2] = 0;
4272                                                 overridecolor[0] = 1;
4273                                                 overridecolor[1] = 1;
4274                                                 overridecolor[2] = 1;
4275                                         }
4276                                         if (!strcmp(value, "light_fluorospark"))
4277                                         {
4278                                                 originhack[0] = 0;
4279                                                 originhack[1] = 0;
4280                                                 originhack[2] = 0;
4281                                                 overridecolor[0] = 1;
4282                                                 overridecolor[1] = 1;
4283                                                 overridecolor[2] = 1;
4284                                         }
4285                                         if (!strcmp(value, "light_globe"))
4286                                         {
4287                                                 originhack[0] = 0;
4288                                                 originhack[1] = 0;
4289                                                 originhack[2] = 0;
4290                                                 overridecolor[0] = 1;
4291                                                 overridecolor[1] = 0.8;
4292                                                 overridecolor[2] = 0.4;
4293                                         }
4294                                         if (!strcmp(value, "light_flame_large_yellow"))
4295                                         {
4296                                                 originhack[0] = 0;
4297                                                 originhack[1] = 0;
4298                                                 originhack[2] = 0;
4299                                                 overridecolor[0] = 1;
4300                                                 overridecolor[1] = 0.5;
4301                                                 overridecolor[2] = 0.1;
4302                                         }
4303                                         if (!strcmp(value, "light_flame_small_yellow"))
4304                                         {
4305                                                 originhack[0] = 0;
4306                                                 originhack[1] = 0;
4307                                                 originhack[2] = 0;
4308                                                 overridecolor[0] = 1;
4309                                                 overridecolor[1] = 0.5;
4310                                                 overridecolor[2] = 0.1;
4311                                         }
4312                                         if (!strcmp(value, "light_torch_small_white"))
4313                                         {
4314                                                 originhack[0] = 0;
4315                                                 originhack[1] = 0;
4316                                                 originhack[2] = 0;
4317                                                 overridecolor[0] = 1;
4318                                                 overridecolor[1] = 0.5;
4319                                                 overridecolor[2] = 0.1;
4320                                         }
4321                                         if (!strcmp(value, "light_torch_small_walltorch"))
4322                                         {
4323                                                 originhack[0] = 0;
4324                                                 originhack[1] = 0;
4325                                                 originhack[2] = 0;
4326                                                 overridecolor[0] = 1;
4327                                                 overridecolor[1] = 0.5;
4328                                                 overridecolor[2] = 0.1;
4329                                         }
4330                                 }
4331                         }
4332                         else if (!strcmp("style", key))
4333                                 style = atoi(value);
4334                         else if (!strcmp("skin", key))
4335                                 skin = (int)atof(value);
4336                         else if (!strcmp("pflags", key))
4337                                 pflags = (int)atof(value);
4338                         else if (!strcmp("effects", key))
4339                                 effects = (int)atof(value);
4340                         else if (cl.worldmodel->type == mod_brushq3)
4341                         {
4342                                 if (!strcmp("scale", key))
4343                                         lightscale = atof(value);
4344                                 if (!strcmp("fade", key))
4345                                         fadescale = atof(value);
4346                         }
4347                 }
4348                 if (!islight)
4349                         continue;
4350                 if (lightscale <= 0)
4351                         lightscale = 1;
4352                 if (fadescale <= 0)
4353                         fadescale = 1;
4354                 if (color[0] == color[1] && color[0] == color[2])
4355                 {
4356                         color[0] *= overridecolor[0];
4357                         color[1] *= overridecolor[1];
4358                         color[2] *= overridecolor[2];
4359                 }
4360                 radius = light[3] * r_editlights_quakelightsizescale.value * lightscale / fadescale;
4361                 color[0] = color[0] * light[0];
4362                 color[1] = color[1] * light[1];
4363                 color[2] = color[2] * light[2];
4364                 switch (type)
4365                 {
4366                 case LIGHTTYPE_MINUSX:
4367                         break;
4368                 case LIGHTTYPE_RECIPX:
4369                         radius *= 2;
4370                         VectorScale(color, (1.0f / 16.0f), color);
4371                         break;
4372                 case LIGHTTYPE_RECIPXX:
4373                         radius *= 2;
4374                         VectorScale(color, (1.0f / 16.0f), color);
4375                         break;
4376                 default:
4377                 case LIGHTTYPE_NONE:
4378                         break;
4379                 case LIGHTTYPE_SUN:
4380                         break;
4381                 case LIGHTTYPE_MINUSXX:
4382                         break;
4383                 }
4384                 VectorAdd(origin, originhack, origin);
4385                 if (radius >= 1)
4386                         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);
4387         }
4388         if (entfiledata)
4389                 Mem_Free(entfiledata);
4390 }
4391
4392
4393 void R_Shadow_SetCursorLocationForView(void)
4394 {
4395         vec_t dist, push;
4396         vec3_t dest, endpos;
4397         trace_t trace;
4398         VectorMA(r_refdef.view.origin, r_editlights_cursordistance.value, r_refdef.view.forward, dest);
4399         trace = CL_Move(r_refdef.view.origin, vec3_origin, vec3_origin, dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false);
4400         if (trace.fraction < 1)
4401         {
4402                 dist = trace.fraction * r_editlights_cursordistance.value;
4403                 push = r_editlights_cursorpushback.value;
4404                 if (push > dist)
4405                         push = dist;
4406                 push = -push;
4407                 VectorMA(trace.endpos, push, r_refdef.view.forward, endpos);
4408                 VectorMA(endpos, r_editlights_cursorpushoff.value, trace.plane.normal, endpos);
4409         }
4410         else
4411         {
4412                 VectorClear( endpos );
4413         }
4414         r_editlights_cursorlocation[0] = floor(endpos[0] / r_editlights_cursorgrid.value + 0.5f) * r_editlights_cursorgrid.value;
4415         r_editlights_cursorlocation[1] = floor(endpos[1] / r_editlights_cursorgrid.value + 0.5f) * r_editlights_cursorgrid.value;
4416         r_editlights_cursorlocation[2] = floor(endpos[2] / r_editlights_cursorgrid.value + 0.5f) * r_editlights_cursorgrid.value;
4417 }
4418
4419 void R_Shadow_UpdateWorldLightSelection(void)
4420 {
4421         if (r_editlights.integer)
4422         {
4423                 R_Shadow_SetCursorLocationForView();
4424                 R_Shadow_SelectLightInView();
4425         }
4426         else
4427                 R_Shadow_SelectLight(NULL);
4428 }
4429
4430 void R_Shadow_EditLights_Clear_f(void)
4431 {
4432         R_Shadow_ClearWorldLights();
4433 }
4434
4435 void R_Shadow_EditLights_Reload_f(void)
4436 {
4437         if (!cl.worldmodel)
4438                 return;
4439         strlcpy(r_shadow_mapname, cl.worldmodel->name, sizeof(r_shadow_mapname));
4440         R_Shadow_ClearWorldLights();
4441         R_Shadow_LoadWorldLights();
4442         if (!Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray))
4443         {
4444                 R_Shadow_LoadLightsFile();
4445                 if (!Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray))
4446                         R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite();
4447         }
4448 }
4449
4450 void R_Shadow_EditLights_Save_f(void)
4451 {
4452         if (!cl.worldmodel)
4453                 return;
4454         R_Shadow_SaveWorldLights();
4455 }
4456
4457 void R_Shadow_EditLights_ImportLightEntitiesFromMap_f(void)
4458 {
4459         R_Shadow_ClearWorldLights();
4460         R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite();
4461 }
4462
4463 void R_Shadow_EditLights_ImportLightsFile_f(void)
4464 {
4465         R_Shadow_ClearWorldLights();
4466         R_Shadow_LoadLightsFile();
4467 }
4468
4469 void R_Shadow_EditLights_Spawn_f(void)
4470 {
4471         vec3_t color;
4472         if (!r_editlights.integer)
4473         {
4474                 Con_Print("Cannot spawn light when not in editing mode.  Set r_editlights to 1.\n");
4475                 return;
4476         }
4477         if (Cmd_Argc() != 1)
4478         {
4479                 Con_Print("r_editlights_spawn does not take parameters\n");
4480                 return;
4481         }
4482         color[0] = color[1] = color[2] = 1;
4483         R_Shadow_UpdateWorldLight(R_Shadow_NewWorldLight(), r_editlights_cursorlocation, vec3_origin, color, 200, 0, 0, true, NULL, 0.25, 0, 1, 1, LIGHTFLAG_REALTIMEMODE);
4484 }
4485
4486 void R_Shadow_EditLights_Edit_f(void)
4487 {
4488         vec3_t origin, angles, color;
4489         vec_t radius, corona, coronasizescale, ambientscale, diffusescale, specularscale;
4490         int style, shadows, flags, normalmode, realtimemode;
4491         char cubemapname[MAX_INPUTLINE];
4492         if (!r_editlights.integer)
4493         {
4494                 Con_Print("Cannot spawn light when not in editing mode.  Set r_editlights to 1.\n");
4495                 return;
4496         }
4497         if (!r_shadow_selectedlight)
4498         {
4499                 Con_Print("No selected light.\n");
4500                 return;
4501         }
4502         VectorCopy(r_shadow_selectedlight->origin, origin);
4503         VectorCopy(r_shadow_selectedlight->angles, angles);
4504         VectorCopy(r_shadow_selectedlight->color, color);
4505         radius = r_shadow_selectedlight->radius;
4506         style = r_shadow_selectedlight->style;
4507         if (r_shadow_selectedlight->cubemapname)
4508                 strlcpy(cubemapname, r_shadow_selectedlight->cubemapname, sizeof(cubemapname));
4509         else
4510                 cubemapname[0] = 0;
4511         shadows = r_shadow_selectedlight->shadow;
4512         corona = r_shadow_selectedlight->corona;
4513         coronasizescale = r_shadow_selectedlight->coronasizescale;
4514         ambientscale = r_shadow_selectedlight->ambientscale;
4515         diffusescale = r_shadow_selectedlight->diffusescale;
4516         specularscale = r_shadow_selectedlight->specularscale;
4517         flags = r_shadow_selectedlight->flags;
4518         normalmode = (flags & LIGHTFLAG_NORMALMODE) != 0;
4519         realtimemode = (flags & LIGHTFLAG_REALTIMEMODE) != 0;
4520         if (!strcmp(Cmd_Argv(1), "origin"))
4521         {
4522                 if (Cmd_Argc() != 5)
4523                 {
4524                         Con_Printf("usage: r_editlights_edit %s x y z\n", Cmd_Argv(1));
4525                         return;
4526                 }
4527                 origin[0] = atof(Cmd_Argv(2));
4528                 origin[1] = atof(Cmd_Argv(3));
4529                 origin[2] = atof(Cmd_Argv(4));
4530         }
4531         else if (!strcmp(Cmd_Argv(1), "originx"))
4532         {
4533                 if (Cmd_Argc() != 3)
4534                 {
4535                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4536                         return;
4537                 }
4538                 origin[0] = atof(Cmd_Argv(2));
4539         }
4540         else if (!strcmp(Cmd_Argv(1), "originy"))
4541         {
4542                 if (Cmd_Argc() != 3)
4543                 {
4544                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4545                         return;
4546                 }
4547                 origin[1] = atof(Cmd_Argv(2));
4548         }
4549         else if (!strcmp(Cmd_Argv(1), "originz"))
4550         {
4551                 if (Cmd_Argc() != 3)
4552                 {
4553                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4554                         return;
4555                 }
4556                 origin[2] = atof(Cmd_Argv(2));
4557         }
4558         else if (!strcmp(Cmd_Argv(1), "move"))
4559         {
4560                 if (Cmd_Argc() != 5)
4561                 {
4562                         Con_Printf("usage: r_editlights_edit %s x y z\n", Cmd_Argv(1));
4563                         return;
4564                 }
4565                 origin[0] += atof(Cmd_Argv(2));
4566                 origin[1] += atof(Cmd_Argv(3));
4567                 origin[2] += atof(Cmd_Argv(4));
4568         }
4569         else if (!strcmp(Cmd_Argv(1), "movex"))
4570         {
4571                 if (Cmd_Argc() != 3)
4572                 {
4573                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4574                         return;
4575                 }
4576                 origin[0] += atof(Cmd_Argv(2));
4577         }
4578         else if (!strcmp(Cmd_Argv(1), "movey"))
4579         {
4580                 if (Cmd_Argc() != 3)
4581                 {
4582                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4583                         return;
4584                 }
4585                 origin[1] += atof(Cmd_Argv(2));
4586         }
4587         else if (!strcmp(Cmd_Argv(1), "movez"))
4588         {
4589                 if (Cmd_Argc() != 3)
4590                 {
4591                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4592                         return;
4593                 }
4594                 origin[2] += atof(Cmd_Argv(2));
4595         }
4596         else if (!strcmp(Cmd_Argv(1), "angles"))
4597         {
4598                 if (Cmd_Argc() != 5)
4599                 {
4600                         Con_Printf("usage: r_editlights_edit %s x y z\n", Cmd_Argv(1));
4601                         return;
4602                 }
4603                 angles[0] = atof(Cmd_Argv(2));
4604                 angles[1] = atof(Cmd_Argv(3));
4605                 angles[2] = atof(Cmd_Argv(4));
4606         }
4607         else if (!strcmp(Cmd_Argv(1), "anglesx"))
4608         {
4609                 if (Cmd_Argc() != 3)
4610                 {
4611                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4612                         return;
4613                 }
4614                 angles[0] = atof(Cmd_Argv(2));
4615         }
4616         else if (!strcmp(Cmd_Argv(1), "anglesy"))
4617         {
4618                 if (Cmd_Argc() != 3)
4619                 {
4620                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4621                         return;
4622                 }
4623                 angles[1] = atof(Cmd_Argv(2));
4624         }
4625         else if (!strcmp(Cmd_Argv(1), "anglesz"))
4626         {
4627                 if (Cmd_Argc() != 3)
4628                 {
4629                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4630                         return;
4631                 }
4632                 angles[2] = atof(Cmd_Argv(2));
4633         }
4634         else if (!strcmp(Cmd_Argv(1), "color"))
4635         {
4636                 if (Cmd_Argc() != 5)
4637                 {
4638                         Con_Printf("usage: r_editlights_edit %s red green blue\n", Cmd_Argv(1));
4639                         return;
4640                 }
4641                 color[0] = atof(Cmd_Argv(2));
4642                 color[1] = atof(Cmd_Argv(3));
4643                 color[2] = atof(Cmd_Argv(4));
4644         }
4645         else if (!strcmp(Cmd_Argv(1), "radius"))
4646         {
4647                 if (Cmd_Argc() != 3)
4648                 {
4649                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4650                         return;
4651                 }
4652                 radius = atof(Cmd_Argv(2));
4653         }
4654         else if (!strcmp(Cmd_Argv(1), "colorscale"))
4655         {
4656                 if (Cmd_Argc() == 3)
4657                 {
4658                         double scale = atof(Cmd_Argv(2));
4659                         color[0] *= scale;
4660                         color[1] *= scale;
4661                         color[2] *= scale;
4662                 }
4663                 else
4664                 {
4665                         if (Cmd_Argc() != 5)
4666                         {
4667                                 Con_Printf("usage: r_editlights_edit %s red green blue  (OR grey instead of red green blue)\n", Cmd_Argv(1));
4668                                 return;
4669                         }
4670                         color[0] *= atof(Cmd_Argv(2));
4671                         color[1] *= atof(Cmd_Argv(3));
4672                         color[2] *= atof(Cmd_Argv(4));
4673                 }
4674         }
4675         else if (!strcmp(Cmd_Argv(1), "radiusscale") || !strcmp(Cmd_Argv(1), "sizescale"))
4676         {
4677                 if (Cmd_Argc() != 3)
4678                 {
4679                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4680                         return;
4681                 }
4682                 radius *= atof(Cmd_Argv(2));
4683         }
4684         else if (!strcmp(Cmd_Argv(1), "style"))
4685         {
4686                 if (Cmd_Argc() != 3)
4687                 {
4688                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4689                         return;
4690                 }
4691                 style = atoi(Cmd_Argv(2));
4692         }
4693         else if (!strcmp(Cmd_Argv(1), "cubemap"))
4694         {
4695                 if (Cmd_Argc() > 3)
4696                 {
4697                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4698                         return;
4699                 }
4700                 if (Cmd_Argc() == 3)
4701                         strlcpy(cubemapname, Cmd_Argv(2), sizeof(cubemapname));
4702                 else
4703                         cubemapname[0] = 0;
4704         }
4705         else if (!strcmp(Cmd_Argv(1), "shadows"))
4706         {
4707                 if (Cmd_Argc() != 3)
4708                 {
4709                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4710                         return;
4711                 }
4712                 shadows = Cmd_Argv(2)[0] == 'y' || Cmd_Argv(2)[0] == 'Y' || Cmd_Argv(2)[0] == 't' || atoi(Cmd_Argv(2));
4713         }
4714         else if (!strcmp(Cmd_Argv(1), "corona"))
4715         {
4716                 if (Cmd_Argc() != 3)
4717                 {
4718                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4719                         return;
4720                 }
4721                 corona = atof(Cmd_Argv(2));
4722         }
4723         else if (!strcmp(Cmd_Argv(1), "coronasize"))
4724         {
4725                 if (Cmd_Argc() != 3)
4726                 {
4727                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4728                         return;
4729                 }
4730                 coronasizescale = atof(Cmd_Argv(2));
4731         }
4732         else if (!strcmp(Cmd_Argv(1), "ambient"))
4733         {
4734                 if (Cmd_Argc() != 3)
4735                 {
4736                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4737                         return;
4738                 }
4739                 ambientscale = atof(Cmd_Argv(2));
4740         }
4741         else if (!strcmp(Cmd_Argv(1), "diffuse"))
4742         {
4743                 if (Cmd_Argc() != 3)
4744                 {
4745                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4746                         return;
4747                 }
4748                 diffusescale = atof(Cmd_Argv(2));
4749         }
4750         else if (!strcmp(Cmd_Argv(1), "specular"))
4751         {
4752                 if (Cmd_Argc() != 3)
4753                 {
4754                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4755                         return;
4756                 }
4757                 specularscale = atof(Cmd_Argv(2));
4758         }
4759         else if (!strcmp(Cmd_Argv(1), "normalmode"))
4760         {
4761                 if (Cmd_Argc() != 3)
4762                 {
4763                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4764                         return;
4765                 }
4766                 normalmode = Cmd_Argv(2)[0] == 'y' || Cmd_Argv(2)[0] == 'Y' || Cmd_Argv(2)[0] == 't' || atoi(Cmd_Argv(2));
4767         }
4768         else if (!strcmp(Cmd_Argv(1), "realtimemode"))
4769         {
4770                 if (Cmd_Argc() != 3)
4771                 {
4772                         Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1));
4773                         return;
4774                 }
4775                 realtimemode = Cmd_Argv(2)[0] == 'y' || Cmd_Argv(2)[0] == 'Y' || Cmd_Argv(2)[0] == 't' || atoi(Cmd_Argv(2));
4776         }
4777         else
4778         {
4779                 Con_Print("usage: r_editlights_edit [property] [value]\n");
4780                 Con_Print("Selected light's properties:\n");
4781                 Con_Printf("Origin       : %f %f %f\n", r_shadow_selectedlight->origin[0], r_shadow_selectedlight->origin[1], r_shadow_selectedlight->origin[2]);
4782                 Con_Printf("Angles       : %f %f %f\n", r_shadow_selectedlight->angles[0], r_shadow_selectedlight->angles[1], r_shadow_selectedlight->angles[2]);
4783                 Con_Printf("Color        : %f %f %f\n", r_shadow_selectedlight->color[0], r_shadow_selectedlight->color[1], r_shadow_selectedlight->color[2]);
4784                 Con_Printf("Radius       : %f\n", r_shadow_selectedlight->radius);
4785                 Con_Printf("Corona       : %f\n", r_shadow_selectedlight->corona);
4786                 Con_Printf("Style        : %i\n", r_shadow_selectedlight->style);
4787                 Con_Printf("Shadows      : %s\n", r_shadow_selectedlight->shadow ? "yes" : "no");
4788                 Con_Printf("Cubemap      : %s\n", r_shadow_selectedlight->cubemapname);
4789                 Con_Printf("CoronaSize   : %f\n", r_shadow_selectedlight->coronasizescale);
4790                 Con_Printf("Ambient      : %f\n", r_shadow_selectedlight->ambientscale);
4791                 Con_Printf("Diffuse      : %f\n", r_shadow_selectedlight->diffusescale);
4792                 Con_Printf("Specular     : %f\n", r_shadow_selectedlight->specularscale);
4793                 Con_Printf("NormalMode   : %s\n", (r_shadow_selectedlight->flags & LIGHTFLAG_NORMALMODE) ? "yes" : "no");
4794                 Con_Printf("RealTimeMode : %s\n", (r_shadow_selectedlight->flags & LIGHTFLAG_REALTIMEMODE) ? "yes" : "no");
4795                 return;
4796         }
4797         flags = (normalmode ? LIGHTFLAG_NORMALMODE : 0) | (realtimemode ? LIGHTFLAG_REALTIMEMODE : 0);
4798         R_Shadow_UpdateWorldLight(r_shadow_selectedlight, origin, angles, color, radius, corona, style, shadows, cubemapname, coronasizescale, ambientscale, diffusescale, specularscale, flags);
4799 }
4800
4801 void R_Shadow_EditLights_EditAll_f(void)
4802 {
4803         size_t lightindex;
4804         dlight_t *light;
4805         size_t range;
4806
4807         if (!r_editlights.integer)
4808         {
4809                 Con_Print("Cannot edit lights when not in editing mode. Set r_editlights to 1.\n");
4810                 return;
4811         }
4812
4813         // EditLights doesn't seem to have a "remove" command or something so:
4814         range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
4815         for (lightindex = 0;lightindex < range;lightindex++)
4816         {
4817                 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
4818                 if (!light)
4819                         continue;
4820                 R_Shadow_SelectLight(light);
4821                 R_Shadow_EditLights_Edit_f();
4822         }
4823 }
4824
4825 void R_Shadow_EditLights_DrawSelectedLightProperties(void)
4826 {
4827         int lightnumber, lightcount;
4828         size_t lightindex, range;
4829         dlight_t *light;
4830         float x, y;
4831         char temp[256];
4832         if (!r_editlights.integer)
4833                 return;
4834         x = vid_conwidth.value - 240;
4835         y = 5;
4836         DrawQ_Pic(x-5, y-5, NULL, 250, 155, 0, 0, 0, 0.75, 0);
4837         lightnumber = -1;
4838         lightcount = 0;
4839         range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
4840         for (lightindex = 0;lightindex < range;lightindex++)
4841         {
4842                 light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
4843                 if (!light)
4844                         continue;
4845                 if (light == r_shadow_selectedlight)
4846                         lightnumber = lightindex;
4847                 lightcount++;
4848         }
4849         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;
4850         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;
4851         y += 8;
4852         if (r_shadow_selectedlight == NULL)
4853                 return;
4854         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;
4855         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;
4856         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;
4857         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;
4858         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;
4859         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;
4860         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;
4861         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;
4862         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;
4863         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;
4864         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;
4865         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;
4866         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;
4867         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;
4868         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;
4869 }
4870
4871 void R_Shadow_EditLights_ToggleShadow_f(void)
4872 {
4873         if (!r_editlights.integer)
4874         {
4875                 Con_Print("Cannot spawn light when not in editing mode.  Set r_editlights to 1.\n");
4876                 return;
4877         }
4878         if (!r_shadow_selectedlight)
4879         {
4880                 Con_Print("No selected light.\n");
4881                 return;
4882         }
4883         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);
4884 }
4885
4886 void R_Shadow_EditLights_ToggleCorona_f(void)
4887 {
4888         if (!r_editlights.integer)
4889         {
4890                 Con_Print("Cannot spawn light when not in editing mode.  Set r_editlights to 1.\n");
4891                 return;
4892         }
4893         if (!r_shadow_selectedlight)
4894         {
4895                 Con_Print("No selected light.\n");
4896                 return;
4897         }
4898         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);
4899 }
4900
4901 void R_Shadow_EditLights_Remove_f(void)
4902 {
4903         if (!r_editlights.integer)
4904         {
4905                 Con_Print("Cannot remove light when not in editing mode.  Set r_editlights to 1.\n");
4906                 return;
4907         }
4908         if (!r_shadow_selectedlight)
4909         {
4910                 Con_Print("No selected light.\n");
4911                 return;
4912         }
4913         R_Shadow_FreeWorldLight(r_shadow_selectedlight);
4914         r_shadow_selectedlight = NULL;
4915 }
4916
4917 void R_Shadow_EditLights_Help_f(void)
4918 {
4919         Con_Print(
4920 "Documentation on r_editlights system:\n"
4921 "Settings:\n"
4922 "r_editlights : enable/disable editing mode\n"
4923 "r_editlights_cursordistance : maximum distance of cursor from eye\n"
4924 "r_editlights_cursorpushback : push back cursor this far from surface\n"
4925 "r_editlights_cursorpushoff : push cursor off surface this far\n"
4926 "r_editlights_cursorgrid : snap cursor to grid of this size\n"
4927 "r_editlights_quakelightsizescale : imported quake light entity size scaling\n"
4928 "Commands:\n"
4929 "r_editlights_help : this help\n"
4930 "r_editlights_clear : remove all lights\n"
4931 "r_editlights_reload : reload .rtlights, .lights file, or entities\n"
4932 "r_editlights_save : save to .rtlights file\n"
4933 "r_editlights_spawn : create a light with default settings\n"
4934 "r_editlights_edit command : edit selected light - more documentation below\n"
4935 "r_editlights_remove : remove selected light\n"
4936 "r_editlights_toggleshadow : toggles on/off selected light's shadow property\n"
4937 "r_editlights_importlightentitiesfrommap : reload light entities\n"
4938 "r_editlights_importlightsfile : reload .light file (produced by hlight)\n"
4939 "Edit commands:\n"
4940 "origin x y z : set light location\n"
4941 "originx x: set x component of light location\n"
4942 "originy y: set y component of light location\n"
4943 "originz z: set z component of light location\n"
4944 "move x y z : adjust light location\n"
4945 "movex x: adjust x component of light location\n"
4946 "movey y: adjust y component of light location\n"
4947 "movez z: adjust z component of light location\n"
4948 "angles x y z : set light angles\n"
4949 "anglesx x: set x component of light angles\n"
4950 "anglesy y: set y component of light angles\n"
4951 "anglesz z: set z component of light angles\n"
4952 "color r g b : set color of light (can be brighter than 1 1 1)\n"
4953 "radius radius : set radius (size) of light\n"
4954 "colorscale grey : multiply color of light (1 does nothing)\n"
4955 "colorscale r g b : multiply color of light (1 1 1 does nothing)\n"
4956 "radiusscale scale : multiply radius (size) of light (1 does nothing)\n"
4957 "sizescale scale : multiply radius (size) of light (1 does nothing)\n"
4958 "style style : set lightstyle of light (flickering patterns, switches, etc)\n"
4959 "cubemap basename : set filter cubemap of light (not yet supported)\n"
4960 "shadows 1/0 : turn on/off shadows\n"
4961 "corona n : set corona intensity\n"
4962 "coronasize n : set corona size (0-1)\n"
4963 "ambient n : set ambient intensity (0-1)\n"
4964 "diffuse n : set diffuse intensity (0-1)\n"
4965 "specular n : set specular intensity (0-1)\n"
4966 "normalmode 1/0 : turn on/off rendering of this light in rtworld 0 mode\n"
4967 "realtimemode 1/0 : turn on/off rendering of this light in rtworld 1 mode\n"
4968 "<nothing> : print light properties to console\n"
4969         );
4970 }
4971
4972 void R_Shadow_EditLights_CopyInfo_f(void)
4973 {
4974         if (!r_editlights.integer)
4975         {
4976                 Con_Print("Cannot copy light info when not in editing mode.  Set r_editlights to 1.\n");
4977                 return;
4978         }
4979         if (!r_shadow_selectedlight)
4980         {
4981                 Con_Print("No selected light.\n");
4982                 return;
4983         }
4984         VectorCopy(r_shadow_selectedlight->angles, r_shadow_bufferlight.angles);
4985         VectorCopy(r_shadow_selectedlight->color, r_shadow_bufferlight.color);
4986         r_shadow_bufferlight.radius = r_shadow_selectedlight->radius;
4987         r_shadow_bufferlight.style = r_shadow_selectedlight->style;
4988         if (r_shadow_selectedlight->cubemapname)
4989                 strlcpy(r_shadow_bufferlight.cubemapname, r_shadow_selectedlight->cubemapname, sizeof(r_shadow_bufferlight.cubemapname));
4990         else
4991                 r_shadow_bufferlight.cubemapname[0] = 0;
4992         r_shadow_bufferlight.shadow = r_shadow_selectedlight->shadow;
4993         r_shadow_bufferlight.corona = r_shadow_selectedlight->corona;
4994         r_shadow_bufferlight.coronasizescale = r_shadow_selectedlight->coronasizescale;
4995         r_shadow_bufferlight.ambientscale = r_shadow_selectedlight->ambientscale;
4996         r_shadow_bufferlight.diffusescale = r_shadow_selectedlight->diffusescale;
4997         r_shadow_bufferlight.specularscale = r_shadow_selectedlight->specularscale;
4998         r_shadow_bufferlight.flags = r_shadow_selectedlight->flags;
4999 }
5000
5001 void R_Shadow_EditLights_PasteInfo_f(void)
5002 {
5003         if (!r_editlights.integer)
5004         {
5005                 Con_Print("Cannot paste light info when not in editing mode.  Set r_editlights to 1.\n");
5006                 return;
5007         }
5008         if (!r_shadow_selectedlight)
5009         {
5010                 Con_Print("No selected light.\n");
5011                 return;
5012         }
5013         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);
5014 }
5015
5016 void R_Shadow_EditLights_Init(void)
5017 {
5018         Cvar_RegisterVariable(&r_editlights);
5019         Cvar_RegisterVariable(&r_editlights_cursordistance);
5020         Cvar_RegisterVariable(&r_editlights_cursorpushback);
5021         Cvar_RegisterVariable(&r_editlights_cursorpushoff);
5022         Cvar_RegisterVariable(&r_editlights_cursorgrid);
5023         Cvar_RegisterVariable(&r_editlights_quakelightsizescale);
5024         Cmd_AddCommand("r_editlights_help", R_Shadow_EditLights_Help_f, "prints documentation on console commands and variables in rtlight editing system");
5025         Cmd_AddCommand("r_editlights_clear", R_Shadow_EditLights_Clear_f, "removes all world lights (let there be darkness!)");
5026         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)");
5027         Cmd_AddCommand("r_editlights_save", R_Shadow_EditLights_Save_f, "save .rtlights file for current level");
5028         Cmd_AddCommand("r_editlights_spawn", R_Shadow_EditLights_Spawn_f, "creates a light with default properties (let there be light!)");
5029         Cmd_AddCommand("r_editlights_edit", R_Shadow_EditLights_Edit_f, "changes a property on the selected light");
5030         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)");
5031         Cmd_AddCommand("r_editlights_remove", R_Shadow_EditLights_Remove_f, "remove selected light");
5032         Cmd_AddCommand("r_editlights_toggleshadow", R_Shadow_EditLights_ToggleShadow_f, "toggle on/off the shadow option on the selected light");
5033         Cmd_AddCommand("r_editlights_togglecorona", R_Shadow_EditLights_ToggleCorona_f, "toggle on/off the corona option on the selected light");
5034         Cmd_AddCommand("r_editlights_importlightentitiesfrommap", R_Shadow_EditLights_ImportLightEntitiesFromMap_f, "load lights from .ent file or map entities (ignoring .rtlights or .lights file)");
5035         Cmd_AddCommand("r_editlights_importlightsfile", R_Shadow_EditLights_ImportLightsFile_f, "load lights from .lights file (ignoring .rtlights or .ent files and map entities)");
5036         Cmd_AddCommand("r_editlights_copyinfo", R_Shadow_EditLights_CopyInfo_f, "store a copy of all properties (except origin) of the selected light");
5037         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)");
5038 }
5039
5040
5041
5042 /*
5043 =============================================================================
5044
5045 LIGHT SAMPLING
5046
5047 =============================================================================
5048 */
5049
5050 void R_CompleteLightPoint(vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const vec3_t p, int dynamic)
5051 {
5052         VectorClear(diffusecolor);
5053         VectorClear(diffusenormal);
5054
5055         if (!r_fullbright.integer && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.LightPoint)
5056         {
5057                 ambientcolor[0] = ambientcolor[1] = ambientcolor[2] = r_refdef.scene.ambient * (2.0f / 128.0f);
5058                 r_refdef.scene.worldmodel->brush.LightPoint(r_refdef.scene.worldmodel, p, ambientcolor, diffusecolor, diffusenormal);
5059         }
5060         else
5061                 VectorSet(ambientcolor, 1, 1, 1);
5062
5063         if (dynamic)
5064         {
5065                 int i;
5066                 float f, v[3];
5067                 rtlight_t *light;
5068                 for (i = 0;i < r_refdef.scene.numlights;i++)
5069                 {
5070                         light = r_refdef.scene.lights[i];
5071                         Matrix4x4_Transform(&light->matrix_worldtolight, p, v);
5072                         f = 1 - VectorLength2(v);
5073                         if (f > 0 && CL_Move(p, vec3_origin, vec3_origin, light->shadoworigin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction == 1)
5074                                 VectorMA(ambientcolor, f, light->currentcolor, ambientcolor);
5075                 }
5076         }
5077 }