/* Terminology: Stencil Shadow Volume (sometimes called Stencil Shadows) An extrusion of the lit faces, beginning at the original geometry and ending further from the light source than the original geometry (presumably at least as far as the light's radius, if the light has a radius at all), capped at both front and back to avoid any problems (extrusion from dark faces also works but has a different set of problems) This is normally rendered using Carmack's Reverse technique, in which backfaces behind zbuffer (zfail) increment the stencil, and frontfaces behind zbuffer (zfail) decrement the stencil, the result is a stencil value of zero where shadows did not intersect the visible geometry, suitable as a stencil mask for rendering lighting everywhere but shadow. In our case to hopefully avoid the Creative Labs patent, we draw the backfaces as decrement and the frontfaces as increment, and we redefine the DepthFunc to GL_LESS (the patent uses GL_GEQUAL) which causes zfail when behind surfaces and zpass when infront (the patent draws where zpass with a GL_GEQUAL test), additionally we clear stencil to 128 to avoid the need for the unclamped incr/decr extension (not related to patent). Patent warning: This algorithm may be covered by Creative's patent (US Patent #6384822), however that patent is quite specific about increment on backfaces and decrement on frontfaces where zpass with GL_GEQUAL depth test, which is opposite this implementation and partially opposite Carmack's Reverse paper (which uses GL_LESS, but increments on backfaces and decrements on frontfaces). Terminology: Stencil Light Volume (sometimes called Light Volumes) Similar to a Stencil Shadow Volume, but inverted; rather than containing the areas in shadow it contains the areas in light, this can only be built quickly for certain limited cases (such as portal visibility from a point), but is quite useful for some effects (sunlight coming from sky polygons is one possible example, translucent occluders is another example). Terminology: Optimized Stencil Shadow Volume A Stencil Shadow Volume that has been processed sufficiently to ensure it has no duplicate coverage of areas (no need to shadow an area twice), often this greatly improves performance but is an operation too costly to use on moving lights (however completely optimal Stencil Light Volumes can be constructed in some ideal cases). Terminology: Per Pixel Lighting (sometimes abbreviated PPL) Per pixel evaluation of lighting equations, at a bare minimum this involves DOT3 shading of diffuse lighting (per pixel dotproduct of negated incidence vector and surface normal, using a texture of the surface bumps, called a NormalMap) if supported by hardware; in our case there is support for cards which are incapable of DOT3, the quality is quite poor however. Additionally it is desirable to have specular evaluation per pixel, per vertex normalization of specular halfangle vectors causes noticable distortion but is unavoidable on hardware without GL_ARB_fragment_program or GL_ARB_fragment_shader. Terminology: Normalization CubeMap A cubemap containing normalized dot3-encoded (vectors of length 1 or less encoded as RGB colors) for any possible direction, this technique allows per pixel calculation of incidence vector for per pixel lighting purposes, which would not otherwise be possible per pixel without GL_ARB_fragment_program or GL_ARB_fragment_shader. Terminology: 2D+1D Attenuation Texturing A very crude approximation of light attenuation with distance which results in cylindrical light shapes which fade vertically as a streak (some games such as Doom3 allow this to be rotated to be less noticable in specific cases), the technique is simply modulating lighting by two 2D textures (which can be the same) on different axes of projection (XY and Z, typically), this is the second best technique available without 3D Attenuation Texturing, GL_ARB_fragment_program or GL_ARB_fragment_shader technology. Terminology: 2D+1D Inverse Attenuation Texturing A clever method described in papers on the Abducted engine, this has a squared distance texture (bright on the outside, black in the middle), which is used twice using GL_ADD blending, the result of this is used in an inverse modulate (GL_ONE_MINUS_DST_ALPHA, GL_ZERO) to implement the equation lighting*=(1-((X*X+Y*Y)+(Z*Z))) which is spherical (unlike 2D+1D attenuation texturing). Terminology: 3D Attenuation Texturing A slightly crude approximation of light attenuation with distance, its flaws are limited radius and resolution (performance tradeoffs). Terminology: 3D Attenuation-Normalization Texturing A 3D Attenuation Texture merged with a Normalization CubeMap, by making the vectors shorter the lighting becomes darker, a very effective optimization of diffuse lighting if 3D Attenuation Textures are already used. Terminology: Light Cubemap Filtering A technique for modeling non-uniform light distribution according to direction, for example a lantern may use a cubemap to describe the light emission pattern of the cage around the lantern (as well as soot buildup discoloring the light in certain areas), often also used for softened grate shadows and light shining through a stained glass window (done crudely by texturing the lighting with a cubemap), another good example would be a disco light. This technique is used heavily in many games (Doom3 does not support this however). Terminology: Light Projection Filtering A technique for modeling shadowing of light passing through translucent surfaces, allowing stained glass windows and other effects to be done more elegantly than possible with Light Cubemap Filtering by applying an occluder texture to the lighting combined with a stencil light volume to limit the lit area, this technique is used by Doom3 for spotlights and flashlights, among other things, this can also be used more generally to render light passing through multiple translucent occluders in a scene (using a light volume to describe the area beyond the occluder, and thus mask off rendering of all other areas). Terminology: Doom3 Lighting A combination of Stencil Shadow Volume, Per Pixel Lighting, Normalization CubeMap, 2D+1D Attenuation Texturing, and Light Projection Filtering, as demonstrated by the game Doom3. */ #include "quakedef.h" #include "r_shadow.h" #include "cl_collision.h" #include "portals.h" #include "image.h" #ifdef SUPPORTD3D #include extern LPDIRECT3DDEVICE9 vid_d3d9dev; #endif extern void R_Shadow_EditLights_Init(void); typedef enum r_shadow_rendermode_e { R_SHADOW_RENDERMODE_NONE, R_SHADOW_RENDERMODE_ZPASS_STENCIL, R_SHADOW_RENDERMODE_ZPASS_SEPARATESTENCIL, R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE, R_SHADOW_RENDERMODE_ZFAIL_STENCIL, R_SHADOW_RENDERMODE_ZFAIL_SEPARATESTENCIL, R_SHADOW_RENDERMODE_ZFAIL_STENCILTWOSIDE, R_SHADOW_RENDERMODE_LIGHT_VERTEX, R_SHADOW_RENDERMODE_LIGHT_VERTEX2DATTEN, R_SHADOW_RENDERMODE_LIGHT_VERTEX2D1DATTEN, R_SHADOW_RENDERMODE_LIGHT_VERTEX3DATTEN, R_SHADOW_RENDERMODE_LIGHT_GLSL, R_SHADOW_RENDERMODE_VISIBLEVOLUMES, R_SHADOW_RENDERMODE_VISIBLELIGHTING, R_SHADOW_RENDERMODE_SHADOWMAP2D } r_shadow_rendermode_t; typedef enum r_shadow_shadowmode_e { R_SHADOW_SHADOWMODE_STENCIL, R_SHADOW_SHADOWMODE_SHADOWMAP2D } r_shadow_shadowmode_t; r_shadow_rendermode_t r_shadow_rendermode = R_SHADOW_RENDERMODE_NONE; r_shadow_rendermode_t r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_NONE; r_shadow_rendermode_t r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_NONE; r_shadow_rendermode_t r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_NONE; qboolean r_shadow_usingshadowmap2d; qboolean r_shadow_usingshadowmaportho; int r_shadow_shadowmapside; float r_shadow_shadowmap_texturescale[2]; float r_shadow_shadowmap_parameters[4]; #if 0 int r_shadow_drawbuffer; int r_shadow_readbuffer; #endif int r_shadow_cullface_front, r_shadow_cullface_back; GLuint r_shadow_fbo2d; r_shadow_shadowmode_t r_shadow_shadowmode; int r_shadow_shadowmapfilterquality; int r_shadow_shadowmapdepthbits; int r_shadow_shadowmapmaxsize; qboolean r_shadow_shadowmapvsdct; qboolean r_shadow_shadowmapsampler; int r_shadow_shadowmappcf; int r_shadow_shadowmapborder; matrix4x4_t r_shadow_shadowmapmatrix; int r_shadow_lightscissor[4]; qboolean r_shadow_usingdeferredprepass; int maxshadowtriangles; int *shadowelements; int maxshadowvertices; float *shadowvertex3f; int maxshadowmark; int numshadowmark; int *shadowmark; int *shadowmarklist; int shadowmarkcount; int maxshadowsides; int numshadowsides; unsigned char *shadowsides; int *shadowsideslist; int maxvertexupdate; int *vertexupdate; int *vertexremap; int vertexupdatenum; int r_shadow_buffer_numleafpvsbytes; unsigned char *r_shadow_buffer_visitingleafpvs; unsigned char *r_shadow_buffer_leafpvs; int *r_shadow_buffer_leaflist; int r_shadow_buffer_numsurfacepvsbytes; unsigned char *r_shadow_buffer_surfacepvs; int *r_shadow_buffer_surfacelist; unsigned char *r_shadow_buffer_surfacesides; int r_shadow_buffer_numshadowtrispvsbytes; unsigned char *r_shadow_buffer_shadowtrispvs; int r_shadow_buffer_numlighttrispvsbytes; unsigned char *r_shadow_buffer_lighttrispvs; rtexturepool_t *r_shadow_texturepool; rtexture_t *r_shadow_attenuationgradienttexture; rtexture_t *r_shadow_attenuation2dtexture; rtexture_t *r_shadow_attenuation3dtexture; skinframe_t *r_shadow_lightcorona; rtexture_t *r_shadow_shadowmap2dtexture; rtexture_t *r_shadow_shadowmap2dcolortexture; rtexture_t *r_shadow_shadowmapvsdcttexture; int r_shadow_shadowmapsize; // changes for each light based on distance int r_shadow_shadowmaplod; // changes for each light based on distance GLuint r_shadow_prepassgeometryfbo; GLuint r_shadow_prepasslightingfbo; int r_shadow_prepass_width; int r_shadow_prepass_height; rtexture_t *r_shadow_prepassgeometrydepthtexture; rtexture_t *r_shadow_prepassgeometrydepthcolortexture; rtexture_t *r_shadow_prepassgeometrynormalmaptexture; rtexture_t *r_shadow_prepasslightingdiffusetexture; rtexture_t *r_shadow_prepasslightingspeculartexture; // lights are reloaded when this changes char r_shadow_mapname[MAX_QPATH]; // used only for light filters (cubemaps) rtexturepool_t *r_shadow_filters_texturepool; static const GLenum r_shadow_prepasslightingdrawbuffers[2] = {GL_COLOR_ATTACHMENT0_EXT, GL_COLOR_ATTACHMENT1_EXT}; 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"}; 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"}; cvar_t r_shadow_debuglight = {0, "r_shadow_debuglight", "-1", "renders only one light, for level design purposes or debugging"}; cvar_t r_shadow_deferred = {CVAR_SAVE, "r_shadow_deferred", "0", "uses image-based lighting instead of geometry-based lighting, the method used renders a depth image and a normalmap image, renders lights into separate diffuse and specular images, and then combines this into the normal rendering, requires r_shadow_shadowmapping"}; cvar_t r_shadow_deferred_8bitrange = {CVAR_SAVE, "r_shadow_deferred_8bitrange", "2", "dynamic range of image-based lighting when using 32bit color (does not apply to fp)"}; //cvar_t r_shadow_deferred_fp = {CVAR_SAVE, "r_shadow_deferred_fp", "0", "use 16bit (1) or 32bit (2) floating point for accumulation of image-based lighting"}; cvar_t r_shadow_usebihculling = {0, "r_shadow_usebihculling", "1", "use BIH (Bounding Interval Hierarchy) for culling lit surfaces instead of BSP (Binary Space Partitioning)"}; cvar_t r_shadow_usenormalmap = {CVAR_SAVE, "r_shadow_usenormalmap", "1", "enables use of directional shading on lights"}; 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)"}; 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"}; cvar_t r_shadow_glossintensity = {0, "r_shadow_glossintensity", "1", "how bright textured glossmaps should look if r_shadow_gloss is 1 or 2"}; cvar_t r_shadow_glossexponent = {0, "r_shadow_glossexponent", "32", "how 'sharp' the gloss should appear (specular power)"}; cvar_t r_shadow_gloss2exponent = {0, "r_shadow_gloss2exponent", "32", "same as r_shadow_glossexponent but for forced gloss (gloss 2) surfaces"}; cvar_t r_shadow_glossexact = {0, "r_shadow_glossexact", "0", "use exact reflection math for gloss (slightly slower, but should look a tad better)"}; cvar_t r_shadow_lightattenuationdividebias = {0, "r_shadow_lightattenuationdividebias", "1", "changes attenuation texture generation"}; cvar_t r_shadow_lightattenuationlinearscale = {0, "r_shadow_lightattenuationlinearscale", "2", "changes attenuation texture generation"}; cvar_t r_shadow_lightintensityscale = {0, "r_shadow_lightintensityscale", "1", "renders all world lights brighter or darker"}; cvar_t r_shadow_lightradiusscale = {0, "r_shadow_lightradiusscale", "1", "renders all world lights larger or smaller"}; cvar_t r_shadow_projectdistance = {0, "r_shadow_projectdistance", "0", "how far to cast shadows"}; 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)"}; cvar_t r_shadow_realtime_dlight = {CVAR_SAVE, "r_shadow_realtime_dlight", "1", "enables rendering of dynamic lights such as explosions and rocket light"}; cvar_t r_shadow_realtime_dlight_shadows = {CVAR_SAVE, "r_shadow_realtime_dlight_shadows", "1", "enables rendering of shadows from dynamic lights"}; cvar_t r_shadow_realtime_dlight_svbspculling = {0, "r_shadow_realtime_dlight_svbspculling", "0", "enables svbsp optimization on dynamic lights (very slow!)"}; cvar_t r_shadow_realtime_dlight_portalculling = {0, "r_shadow_realtime_dlight_portalculling", "0", "enables portal optimization on dynamic lights (slow!)"}; 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)"}; 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"}; cvar_t r_shadow_realtime_world_shadows = {CVAR_SAVE, "r_shadow_realtime_world_shadows", "1", "enables rendering of shadows from world lights"}; cvar_t r_shadow_realtime_world_compile = {0, "r_shadow_realtime_world_compile", "1", "enables compilation of world lights for higher performance rendering"}; 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"}; cvar_t r_shadow_realtime_world_compilesvbsp = {0, "r_shadow_realtime_world_compilesvbsp", "1", "enables svbsp optimization during compilation (slower than compileportalculling but more exact)"}; cvar_t r_shadow_realtime_world_compileportalculling = {0, "r_shadow_realtime_world_compileportalculling", "0", "enables portal-based culling optimization during compilation (overrides compilesvbsp)"}; 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)"}; cvar_t r_shadow_shadowmapping = {CVAR_SAVE, "r_shadow_shadowmapping", "0", "enables use of shadowmapping (depth texture sampling) instead of stencil shadow volumes, requires gl_fbo 1"}; cvar_t r_shadow_shadowmapping_filterquality = {CVAR_SAVE, "r_shadow_shadowmapping_filterquality", "-1", "shadowmap filter modes: -1 = auto-select, 0 = no filtering, 1 = bilinear, 2 = bilinear 2x2 blur (fast), 3 = 3x3 blur (moderate), 4 = 4x4 blur (slow)"}; cvar_t r_shadow_shadowmapping_depthbits = {CVAR_SAVE, "r_shadow_shadowmapping_depthbits", "24", "requested minimum shadowmap texture depth bits"}; cvar_t r_shadow_shadowmapping_vsdct = {CVAR_SAVE, "r_shadow_shadowmapping_vsdct", "1", "enables use of virtual shadow depth cube texture"}; cvar_t r_shadow_shadowmapping_minsize = {CVAR_SAVE, "r_shadow_shadowmapping_minsize", "32", "shadowmap size limit"}; cvar_t r_shadow_shadowmapping_maxsize = {CVAR_SAVE, "r_shadow_shadowmapping_maxsize", "512", "shadowmap size limit"}; cvar_t r_shadow_shadowmapping_precision = {CVAR_SAVE, "r_shadow_shadowmapping_precision", "1", "makes shadowmaps have a maximum resolution of this number of pixels per light source radius unit such that, for example, at precision 0.5 a light with radius 200 will have a maximum resolution of 100 pixels"}; //cvar_t r_shadow_shadowmapping_lod_bias = {CVAR_SAVE, "r_shadow_shadowmapping_lod_bias", "16", "shadowmap size bias"}; //cvar_t r_shadow_shadowmapping_lod_scale = {CVAR_SAVE, "r_shadow_shadowmapping_lod_scale", "128", "shadowmap size scaling parameter"}; cvar_t r_shadow_shadowmapping_bordersize = {CVAR_SAVE, "r_shadow_shadowmapping_bordersize", "4", "shadowmap size bias for filtering"}; cvar_t r_shadow_shadowmapping_nearclip = {CVAR_SAVE, "r_shadow_shadowmapping_nearclip", "1", "shadowmap nearclip in world units"}; cvar_t r_shadow_shadowmapping_bias = {CVAR_SAVE, "r_shadow_shadowmapping_bias", "0.03", "shadowmap bias parameter (this is multiplied by nearclip * 1024 / lodsize)"}; cvar_t r_shadow_shadowmapping_polygonfactor = {CVAR_SAVE, "r_shadow_shadowmapping_polygonfactor", "2", "slope-dependent shadowmapping bias"}; cvar_t r_shadow_shadowmapping_polygonoffset = {CVAR_SAVE, "r_shadow_shadowmapping_polygonoffset", "0", "constant shadowmapping bias"}; cvar_t r_shadow_sortsurfaces = {0, "r_shadow_sortsurfaces", "1", "improve performance by sorting illuminated surfaces by texture"}; cvar_t r_shadow_polygonfactor = {0, "r_shadow_polygonfactor", "0", "how much to enlarge shadow volume polygons when rendering (should be 0!)"}; 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)"}; cvar_t r_shadow_texture3d = {0, "r_shadow_texture3d", "1", "use 3D voxel textures for spherical attenuation rather than cylindrical (does not affect OpenGL 2.0 render path)"}; cvar_t r_coronas = {CVAR_SAVE, "r_coronas", "1", "brightness of corona flare effects around certain lights, 0 disables corona effects"}; 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"}; cvar_t r_coronas_occlusionquery = {CVAR_SAVE, "r_coronas_occlusionquery", "1", "use GL_ARB_occlusion_query extension if supported (fades coronas according to visibility)"}; cvar_t gl_flashblend = {CVAR_SAVE, "gl_flashblend", "0", "render bright coronas for dynamic lights instead of actual lighting, fast but ugly"}; cvar_t gl_ext_separatestencil = {0, "gl_ext_separatestencil", "1", "make use of OpenGL 2.0 glStencilOpSeparate or GL_ATI_separate_stencil extension"}; cvar_t gl_ext_stenciltwoside = {0, "gl_ext_stenciltwoside", "1", "make use of GL_EXT_stenciltwoside extension (NVIDIA only)"}; cvar_t r_editlights = {0, "r_editlights", "0", "enables .rtlights file editing mode"}; cvar_t r_editlights_cursordistance = {0, "r_editlights_cursordistance", "1024", "maximum distance of cursor from eye"}; cvar_t r_editlights_cursorpushback = {0, "r_editlights_cursorpushback", "0", "how far to pull the cursor back toward the eye"}; cvar_t r_editlights_cursorpushoff = {0, "r_editlights_cursorpushoff", "4", "how far to push the cursor off the impacted surface"}; cvar_t r_editlights_cursorgrid = {0, "r_editlights_cursorgrid", "4", "snaps cursor to this grid size"}; cvar_t r_editlights_quakelightsizescale = {CVAR_SAVE, "r_editlights_quakelightsizescale", "1", "changes size of light entities loaded from a map"}; // note the table actually includes one more value, just to avoid the need to clamp the distance index due to minor math error #define ATTENTABLESIZE 256 // 1D gradient, 2D circle and 3D sphere attenuation textures #define ATTEN1DSIZE 32 #define ATTEN2DSIZE 64 #define ATTEN3DSIZE 32 static float r_shadow_attendividebias; // r_shadow_lightattenuationdividebias static float r_shadow_attenlinearscale; // r_shadow_lightattenuationlinearscale static float r_shadow_attentable[ATTENTABLESIZE+1]; rtlight_t *r_shadow_compilingrtlight; static memexpandablearray_t r_shadow_worldlightsarray; dlight_t *r_shadow_selectedlight; dlight_t r_shadow_bufferlight; vec3_t r_editlights_cursorlocation; qboolean r_editlights_lockcursor; extern int con_vislines; void R_Shadow_UncompileWorldLights(void); void R_Shadow_ClearWorldLights(void); void R_Shadow_SaveWorldLights(void); void R_Shadow_LoadWorldLights(void); void R_Shadow_LoadLightsFile(void); void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void); void R_Shadow_EditLights_Reload_f(void); void R_Shadow_ValidateCvars(void); static void R_Shadow_MakeTextures(void); #define EDLIGHTSPRSIZE 8 skinframe_t *r_editlights_sprcursor; skinframe_t *r_editlights_sprlight; skinframe_t *r_editlights_sprnoshadowlight; skinframe_t *r_editlights_sprcubemaplight; skinframe_t *r_editlights_sprcubemapnoshadowlight; skinframe_t *r_editlights_sprselection; void R_Shadow_SetShadowMode(void) { r_shadow_shadowmapmaxsize = bound(1, r_shadow_shadowmapping_maxsize.integer, (int)vid.maxtexturesize_2d / 4); r_shadow_shadowmapvsdct = r_shadow_shadowmapping_vsdct.integer != 0 && vid.renderpath == RENDERPATH_GL20; r_shadow_shadowmapfilterquality = r_shadow_shadowmapping_filterquality.integer; r_shadow_shadowmapdepthbits = r_shadow_shadowmapping_depthbits.integer; r_shadow_shadowmapborder = bound(0, r_shadow_shadowmapping_bordersize.integer, 16); r_shadow_shadowmaplod = -1; r_shadow_shadowmapsize = 0; r_shadow_shadowmapsampler = false; r_shadow_shadowmappcf = 0; r_shadow_shadowmode = R_SHADOW_SHADOWMODE_STENCIL; if ((r_shadow_shadowmapping.integer || r_shadow_deferred.integer) && vid.support.ext_framebuffer_object) { switch(vid.renderpath) { case RENDERPATH_GL20: if(r_shadow_shadowmapfilterquality < 0) { if(vid.support.amd_texture_texture4 || vid.support.arb_texture_gather) r_shadow_shadowmappcf = 1; else if(strstr(gl_vendor, "NVIDIA") || strstr(gl_renderer, "Radeon HD")) { r_shadow_shadowmapsampler = vid.support.arb_shadow; r_shadow_shadowmappcf = 1; } else if(strstr(gl_vendor, "ATI")) r_shadow_shadowmappcf = 1; else r_shadow_shadowmapsampler = vid.support.arb_shadow; } else { switch (r_shadow_shadowmapfilterquality) { case 1: r_shadow_shadowmapsampler = vid.support.arb_shadow; break; case 2: r_shadow_shadowmapsampler = vid.support.arb_shadow; r_shadow_shadowmappcf = 1; break; case 3: r_shadow_shadowmappcf = 1; break; case 4: r_shadow_shadowmappcf = 2; break; } } r_shadow_shadowmode = R_SHADOW_SHADOWMODE_SHADOWMAP2D; // Cg has very little choice in depth texture sampling if (vid.cgcontext) r_shadow_shadowmapsampler = false; break; case RENDERPATH_CGGL: case RENDERPATH_D3D9: case RENDERPATH_D3D10: case RENDERPATH_D3D11: r_shadow_shadowmapsampler = false; r_shadow_shadowmappcf = 1; r_shadow_shadowmode = R_SHADOW_SHADOWMODE_SHADOWMAP2D; break; case RENDERPATH_GL13: break; case RENDERPATH_GL11: break; } } } qboolean R_Shadow_ShadowMappingEnabled(void) { switch (r_shadow_shadowmode) { case R_SHADOW_SHADOWMODE_SHADOWMAP2D: return true; default: return false; } } void R_Shadow_FreeShadowMaps(void) { R_Shadow_SetShadowMode(); R_Mesh_DestroyFramebufferObject(r_shadow_fbo2d); r_shadow_fbo2d = 0; if (r_shadow_shadowmap2dtexture) R_FreeTexture(r_shadow_shadowmap2dtexture); r_shadow_shadowmap2dtexture = NULL; if (r_shadow_shadowmap2dcolortexture) R_FreeTexture(r_shadow_shadowmap2dcolortexture); r_shadow_shadowmap2dcolortexture = NULL; if (r_shadow_shadowmapvsdcttexture) R_FreeTexture(r_shadow_shadowmapvsdcttexture); r_shadow_shadowmapvsdcttexture = NULL; } void r_shadow_start(void) { // allocate vertex processing arrays r_shadow_attenuationgradienttexture = NULL; r_shadow_attenuation2dtexture = NULL; r_shadow_attenuation3dtexture = NULL; r_shadow_shadowmode = R_SHADOW_SHADOWMODE_STENCIL; r_shadow_shadowmap2dtexture = NULL; r_shadow_shadowmap2dcolortexture = NULL; r_shadow_shadowmapvsdcttexture = NULL; r_shadow_shadowmapmaxsize = 0; r_shadow_shadowmapsize = 0; r_shadow_shadowmaplod = 0; r_shadow_shadowmapfilterquality = -1; r_shadow_shadowmapdepthbits = 0; r_shadow_shadowmapvsdct = false; r_shadow_shadowmapsampler = false; r_shadow_shadowmappcf = 0; r_shadow_fbo2d = 0; R_Shadow_FreeShadowMaps(); r_shadow_texturepool = NULL; r_shadow_filters_texturepool = NULL; R_Shadow_ValidateCvars(); R_Shadow_MakeTextures(); maxshadowtriangles = 0; shadowelements = NULL; maxshadowvertices = 0; shadowvertex3f = NULL; maxvertexupdate = 0; vertexupdate = NULL; vertexremap = NULL; vertexupdatenum = 0; maxshadowmark = 0; numshadowmark = 0; shadowmark = NULL; shadowmarklist = NULL; shadowmarkcount = 0; maxshadowsides = 0; numshadowsides = 0; shadowsides = NULL; shadowsideslist = NULL; r_shadow_buffer_numleafpvsbytes = 0; r_shadow_buffer_visitingleafpvs = NULL; r_shadow_buffer_leafpvs = NULL; r_shadow_buffer_leaflist = NULL; r_shadow_buffer_numsurfacepvsbytes = 0; r_shadow_buffer_surfacepvs = NULL; r_shadow_buffer_surfacelist = NULL; r_shadow_buffer_surfacesides = NULL; r_shadow_buffer_numshadowtrispvsbytes = 0; r_shadow_buffer_shadowtrispvs = NULL; r_shadow_buffer_numlighttrispvsbytes = 0; r_shadow_buffer_lighttrispvs = NULL; r_shadow_usingdeferredprepass = false; r_shadow_prepass_width = r_shadow_prepass_height = 0; } static void R_Shadow_FreeDeferred(void); void r_shadow_shutdown(void) { CHECKGLERROR R_Shadow_UncompileWorldLights(); R_Shadow_FreeShadowMaps(); r_shadow_usingdeferredprepass = false; if (r_shadow_prepass_width) R_Shadow_FreeDeferred(); r_shadow_prepass_width = r_shadow_prepass_height = 0; CHECKGLERROR r_shadow_attenuationgradienttexture = NULL; r_shadow_attenuation2dtexture = NULL; r_shadow_attenuation3dtexture = NULL; R_FreeTexturePool(&r_shadow_texturepool); R_FreeTexturePool(&r_shadow_filters_texturepool); maxshadowtriangles = 0; if (shadowelements) Mem_Free(shadowelements); shadowelements = NULL; if (shadowvertex3f) Mem_Free(shadowvertex3f); shadowvertex3f = NULL; maxvertexupdate = 0; if (vertexupdate) Mem_Free(vertexupdate); vertexupdate = NULL; if (vertexremap) Mem_Free(vertexremap); vertexremap = NULL; vertexupdatenum = 0; maxshadowmark = 0; numshadowmark = 0; if (shadowmark) Mem_Free(shadowmark); shadowmark = NULL; if (shadowmarklist) Mem_Free(shadowmarklist); shadowmarklist = NULL; shadowmarkcount = 0; maxshadowsides = 0; numshadowsides = 0; if (shadowsides) Mem_Free(shadowsides); shadowsides = NULL; if (shadowsideslist) Mem_Free(shadowsideslist); shadowsideslist = NULL; r_shadow_buffer_numleafpvsbytes = 0; if (r_shadow_buffer_visitingleafpvs) Mem_Free(r_shadow_buffer_visitingleafpvs); r_shadow_buffer_visitingleafpvs = NULL; if (r_shadow_buffer_leafpvs) Mem_Free(r_shadow_buffer_leafpvs); r_shadow_buffer_leafpvs = NULL; if (r_shadow_buffer_leaflist) Mem_Free(r_shadow_buffer_leaflist); r_shadow_buffer_leaflist = NULL; r_shadow_buffer_numsurfacepvsbytes = 0; if (r_shadow_buffer_surfacepvs) Mem_Free(r_shadow_buffer_surfacepvs); r_shadow_buffer_surfacepvs = NULL; if (r_shadow_buffer_surfacelist) Mem_Free(r_shadow_buffer_surfacelist); r_shadow_buffer_surfacelist = NULL; if (r_shadow_buffer_surfacesides) Mem_Free(r_shadow_buffer_surfacesides); r_shadow_buffer_surfacesides = NULL; r_shadow_buffer_numshadowtrispvsbytes = 0; if (r_shadow_buffer_shadowtrispvs) Mem_Free(r_shadow_buffer_shadowtrispvs); r_shadow_buffer_numlighttrispvsbytes = 0; if (r_shadow_buffer_lighttrispvs) Mem_Free(r_shadow_buffer_lighttrispvs); } void r_shadow_newmap(void) { if (r_shadow_lightcorona) R_SkinFrame_MarkUsed(r_shadow_lightcorona); if (r_editlights_sprcursor) R_SkinFrame_MarkUsed(r_editlights_sprcursor); if (r_editlights_sprlight) R_SkinFrame_MarkUsed(r_editlights_sprlight); if (r_editlights_sprnoshadowlight) R_SkinFrame_MarkUsed(r_editlights_sprnoshadowlight); if (r_editlights_sprcubemaplight) R_SkinFrame_MarkUsed(r_editlights_sprcubemaplight); if (r_editlights_sprcubemapnoshadowlight) R_SkinFrame_MarkUsed(r_editlights_sprcubemapnoshadowlight); if (r_editlights_sprselection) R_SkinFrame_MarkUsed(r_editlights_sprselection); if (strncmp(cl.worldname, r_shadow_mapname, sizeof(r_shadow_mapname))) R_Shadow_EditLights_Reload_f(); } void R_Shadow_Init(void) { Cvar_RegisterVariable(&r_shadow_bumpscale_basetexture); Cvar_RegisterVariable(&r_shadow_bumpscale_bumpmap); Cvar_RegisterVariable(&r_shadow_usebihculling); Cvar_RegisterVariable(&r_shadow_usenormalmap); Cvar_RegisterVariable(&r_shadow_debuglight); Cvar_RegisterVariable(&r_shadow_deferred); Cvar_RegisterVariable(&r_shadow_deferred_8bitrange); // Cvar_RegisterVariable(&r_shadow_deferred_fp); Cvar_RegisterVariable(&r_shadow_gloss); Cvar_RegisterVariable(&r_shadow_gloss2intensity); Cvar_RegisterVariable(&r_shadow_glossintensity); Cvar_RegisterVariable(&r_shadow_glossexponent); Cvar_RegisterVariable(&r_shadow_gloss2exponent); Cvar_RegisterVariable(&r_shadow_glossexact); Cvar_RegisterVariable(&r_shadow_lightattenuationdividebias); Cvar_RegisterVariable(&r_shadow_lightattenuationlinearscale); Cvar_RegisterVariable(&r_shadow_lightintensityscale); Cvar_RegisterVariable(&r_shadow_lightradiusscale); Cvar_RegisterVariable(&r_shadow_projectdistance); Cvar_RegisterVariable(&r_shadow_frontsidecasting); Cvar_RegisterVariable(&r_shadow_realtime_dlight); Cvar_RegisterVariable(&r_shadow_realtime_dlight_shadows); Cvar_RegisterVariable(&r_shadow_realtime_dlight_svbspculling); Cvar_RegisterVariable(&r_shadow_realtime_dlight_portalculling); Cvar_RegisterVariable(&r_shadow_realtime_world); Cvar_RegisterVariable(&r_shadow_realtime_world_lightmaps); Cvar_RegisterVariable(&r_shadow_realtime_world_shadows); Cvar_RegisterVariable(&r_shadow_realtime_world_compile); Cvar_RegisterVariable(&r_shadow_realtime_world_compileshadow); Cvar_RegisterVariable(&r_shadow_realtime_world_compilesvbsp); Cvar_RegisterVariable(&r_shadow_realtime_world_compileportalculling); Cvar_RegisterVariable(&r_shadow_scissor); Cvar_RegisterVariable(&r_shadow_shadowmapping); Cvar_RegisterVariable(&r_shadow_shadowmapping_vsdct); Cvar_RegisterVariable(&r_shadow_shadowmapping_filterquality); Cvar_RegisterVariable(&r_shadow_shadowmapping_depthbits); Cvar_RegisterVariable(&r_shadow_shadowmapping_precision); Cvar_RegisterVariable(&r_shadow_shadowmapping_maxsize); Cvar_RegisterVariable(&r_shadow_shadowmapping_minsize); // Cvar_RegisterVariable(&r_shadow_shadowmapping_lod_bias); // Cvar_RegisterVariable(&r_shadow_shadowmapping_lod_scale); Cvar_RegisterVariable(&r_shadow_shadowmapping_bordersize); Cvar_RegisterVariable(&r_shadow_shadowmapping_nearclip); Cvar_RegisterVariable(&r_shadow_shadowmapping_bias); Cvar_RegisterVariable(&r_shadow_shadowmapping_polygonfactor); Cvar_RegisterVariable(&r_shadow_shadowmapping_polygonoffset); Cvar_RegisterVariable(&r_shadow_sortsurfaces); Cvar_RegisterVariable(&r_shadow_polygonfactor); Cvar_RegisterVariable(&r_shadow_polygonoffset); Cvar_RegisterVariable(&r_shadow_texture3d); Cvar_RegisterVariable(&r_coronas); Cvar_RegisterVariable(&r_coronas_occlusionsizescale); Cvar_RegisterVariable(&r_coronas_occlusionquery); Cvar_RegisterVariable(&gl_flashblend); Cvar_RegisterVariable(&gl_ext_separatestencil); Cvar_RegisterVariable(&gl_ext_stenciltwoside); if (gamemode == GAME_TENEBRAE) { Cvar_SetValue("r_shadow_gloss", 2); Cvar_SetValue("r_shadow_bumpscale_basetexture", 4); } R_Shadow_EditLights_Init(); Mem_ExpandableArray_NewArray(&r_shadow_worldlightsarray, r_main_mempool, sizeof(dlight_t), 128); maxshadowtriangles = 0; shadowelements = NULL; maxshadowvertices = 0; shadowvertex3f = NULL; maxvertexupdate = 0; vertexupdate = NULL; vertexremap = NULL; vertexupdatenum = 0; maxshadowmark = 0; numshadowmark = 0; shadowmark = NULL; shadowmarklist = NULL; shadowmarkcount = 0; maxshadowsides = 0; numshadowsides = 0; shadowsides = NULL; shadowsideslist = NULL; r_shadow_buffer_numleafpvsbytes = 0; r_shadow_buffer_visitingleafpvs = NULL; r_shadow_buffer_leafpvs = NULL; r_shadow_buffer_leaflist = NULL; r_shadow_buffer_numsurfacepvsbytes = 0; r_shadow_buffer_surfacepvs = NULL; r_shadow_buffer_surfacelist = NULL; r_shadow_buffer_surfacesides = NULL; r_shadow_buffer_shadowtrispvs = NULL; r_shadow_buffer_lighttrispvs = NULL; R_RegisterModule("R_Shadow", r_shadow_start, r_shadow_shutdown, r_shadow_newmap, NULL, NULL); } matrix4x4_t matrix_attenuationxyz = { { {0.5, 0.0, 0.0, 0.5}, {0.0, 0.5, 0.0, 0.5}, {0.0, 0.0, 0.5, 0.5}, {0.0, 0.0, 0.0, 1.0} } }; matrix4x4_t matrix_attenuationz = { { {0.0, 0.0, 0.5, 0.5}, {0.0, 0.0, 0.0, 0.5}, {0.0, 0.0, 0.0, 0.5}, {0.0, 0.0, 0.0, 1.0} } }; void R_Shadow_ResizeShadowArrays(int numvertices, int numtriangles, int vertscale, int triscale) { numvertices = ((numvertices + 255) & ~255) * vertscale; numtriangles = ((numtriangles + 255) & ~255) * triscale; // make sure shadowelements is big enough for this volume if (maxshadowtriangles < numtriangles) { maxshadowtriangles = numtriangles; if (shadowelements) Mem_Free(shadowelements); shadowelements = (int *)Mem_Alloc(r_main_mempool, maxshadowtriangles * sizeof(int[3])); } // make sure shadowvertex3f is big enough for this volume if (maxshadowvertices < numvertices) { maxshadowvertices = numvertices; if (shadowvertex3f) Mem_Free(shadowvertex3f); shadowvertex3f = (float *)Mem_Alloc(r_main_mempool, maxshadowvertices * sizeof(float[3])); } } static void R_Shadow_EnlargeLeafSurfaceTrisBuffer(int numleafs, int numsurfaces, int numshadowtriangles, int numlighttriangles) { int numleafpvsbytes = (((numleafs + 7) >> 3) + 255) & ~255; int numsurfacepvsbytes = (((numsurfaces + 7) >> 3) + 255) & ~255; int numshadowtrispvsbytes = (((numshadowtriangles + 7) >> 3) + 255) & ~255; int numlighttrispvsbytes = (((numlighttriangles + 7) >> 3) + 255) & ~255; if (r_shadow_buffer_numleafpvsbytes < numleafpvsbytes) { if (r_shadow_buffer_visitingleafpvs) Mem_Free(r_shadow_buffer_visitingleafpvs); if (r_shadow_buffer_leafpvs) Mem_Free(r_shadow_buffer_leafpvs); if (r_shadow_buffer_leaflist) Mem_Free(r_shadow_buffer_leaflist); r_shadow_buffer_numleafpvsbytes = numleafpvsbytes; r_shadow_buffer_visitingleafpvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numleafpvsbytes); r_shadow_buffer_leafpvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numleafpvsbytes); r_shadow_buffer_leaflist = (int *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numleafpvsbytes * 8 * sizeof(*r_shadow_buffer_leaflist)); } if (r_shadow_buffer_numsurfacepvsbytes < numsurfacepvsbytes) { if (r_shadow_buffer_surfacepvs) Mem_Free(r_shadow_buffer_surfacepvs); if (r_shadow_buffer_surfacelist) Mem_Free(r_shadow_buffer_surfacelist); if (r_shadow_buffer_surfacesides) Mem_Free(r_shadow_buffer_surfacesides); r_shadow_buffer_numsurfacepvsbytes = numsurfacepvsbytes; r_shadow_buffer_surfacepvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numsurfacepvsbytes); r_shadow_buffer_surfacelist = (int *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numsurfacepvsbytes * 8 * sizeof(*r_shadow_buffer_surfacelist)); r_shadow_buffer_surfacesides = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numsurfacepvsbytes * 8 * sizeof(*r_shadow_buffer_surfacelist)); } if (r_shadow_buffer_numshadowtrispvsbytes < numshadowtrispvsbytes) { if (r_shadow_buffer_shadowtrispvs) Mem_Free(r_shadow_buffer_shadowtrispvs); r_shadow_buffer_numshadowtrispvsbytes = numshadowtrispvsbytes; r_shadow_buffer_shadowtrispvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numshadowtrispvsbytes); } if (r_shadow_buffer_numlighttrispvsbytes < numlighttrispvsbytes) { if (r_shadow_buffer_lighttrispvs) Mem_Free(r_shadow_buffer_lighttrispvs); r_shadow_buffer_numlighttrispvsbytes = numlighttrispvsbytes; r_shadow_buffer_lighttrispvs = (unsigned char *)Mem_Alloc(r_main_mempool, r_shadow_buffer_numlighttrispvsbytes); } } void R_Shadow_PrepareShadowMark(int numtris) { // make sure shadowmark is big enough for this volume if (maxshadowmark < numtris) { maxshadowmark = numtris; if (shadowmark) Mem_Free(shadowmark); if (shadowmarklist) Mem_Free(shadowmarklist); shadowmark = (int *)Mem_Alloc(r_main_mempool, maxshadowmark * sizeof(*shadowmark)); shadowmarklist = (int *)Mem_Alloc(r_main_mempool, maxshadowmark * sizeof(*shadowmarklist)); shadowmarkcount = 0; } shadowmarkcount++; // if shadowmarkcount wrapped we clear the array and adjust accordingly if (shadowmarkcount == 0) { shadowmarkcount = 1; memset(shadowmark, 0, maxshadowmark * sizeof(*shadowmark)); } numshadowmark = 0; } void R_Shadow_PrepareShadowSides(int numtris) { if (maxshadowsides < numtris) { maxshadowsides = numtris; if (shadowsides) Mem_Free(shadowsides); if (shadowsideslist) Mem_Free(shadowsideslist); shadowsides = (unsigned char *)Mem_Alloc(r_main_mempool, maxshadowsides * sizeof(*shadowsides)); shadowsideslist = (int *)Mem_Alloc(r_main_mempool, maxshadowsides * sizeof(*shadowsideslist)); } numshadowsides = 0; } 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) { int i, j; int outtriangles = 0, outvertices = 0; const int *element; const float *vertex; float ratio, direction[3], projectvector[3]; if (projectdirection) VectorScale(projectdirection, projectdistance, projectvector); else VectorClear(projectvector); // create the vertices if (projectdirection) { for (i = 0;i < numshadowmarktris;i++) { element = inelement3i + shadowmarktris[i] * 3; for (j = 0;j < 3;j++) { if (vertexupdate[element[j]] != vertexupdatenum) { vertexupdate[element[j]] = vertexupdatenum; vertexremap[element[j]] = outvertices; vertex = invertex3f + element[j] * 3; // project one copy of the vertex according to projectvector VectorCopy(vertex, outvertex3f); VectorAdd(vertex, projectvector, (outvertex3f + 3)); outvertex3f += 6; outvertices += 2; } } } } else { for (i = 0;i < numshadowmarktris;i++) { element = inelement3i + shadowmarktris[i] * 3; for (j = 0;j < 3;j++) { if (vertexupdate[element[j]] != vertexupdatenum) { vertexupdate[element[j]] = vertexupdatenum; vertexremap[element[j]] = outvertices; vertex = invertex3f + element[j] * 3; // project one copy of the vertex to the sphere radius of the light // (FIXME: would projecting it to the light box be better?) VectorSubtract(vertex, projectorigin, direction); ratio = projectdistance / VectorLength(direction); VectorCopy(vertex, outvertex3f); VectorMA(projectorigin, ratio, direction, (outvertex3f + 3)); outvertex3f += 6; outvertices += 2; } } } } if (r_shadow_frontsidecasting.integer) { for (i = 0;i < numshadowmarktris;i++) { int remappedelement[3]; int markindex; const int *neighbortriangle; markindex = shadowmarktris[i] * 3; element = inelement3i + markindex; neighbortriangle = inneighbor3i + markindex; // output the front and back triangles outelement3i[0] = vertexremap[element[0]]; outelement3i[1] = vertexremap[element[1]]; outelement3i[2] = vertexremap[element[2]]; outelement3i[3] = vertexremap[element[2]] + 1; outelement3i[4] = vertexremap[element[1]] + 1; outelement3i[5] = vertexremap[element[0]] + 1; outelement3i += 6; outtriangles += 2; // output the sides (facing outward from this triangle) if (shadowmark[neighbortriangle[0]] != shadowmarkcount) { remappedelement[0] = vertexremap[element[0]]; remappedelement[1] = vertexremap[element[1]]; outelement3i[0] = remappedelement[1]; outelement3i[1] = remappedelement[0]; outelement3i[2] = remappedelement[0] + 1; outelement3i[3] = remappedelement[1]; outelement3i[4] = remappedelement[0] + 1; outelement3i[5] = remappedelement[1] + 1; outelement3i += 6; outtriangles += 2; } if (shadowmark[neighbortriangle[1]] != shadowmarkcount) { remappedelement[1] = vertexremap[element[1]]; remappedelement[2] = vertexremap[element[2]]; outelement3i[0] = remappedelement[2]; outelement3i[1] = remappedelement[1]; outelement3i[2] = remappedelement[1] + 1; outelement3i[3] = remappedelement[2]; outelement3i[4] = remappedelement[1] + 1; outelement3i[5] = remappedelement[2] + 1; outelement3i += 6; outtriangles += 2; } if (shadowmark[neighbortriangle[2]] != shadowmarkcount) { remappedelement[0] = vertexremap[element[0]]; remappedelement[2] = vertexremap[element[2]]; outelement3i[0] = remappedelement[0]; outelement3i[1] = remappedelement[2]; outelement3i[2] = remappedelement[2] + 1; outelement3i[3] = remappedelement[0]; outelement3i[4] = remappedelement[2] + 1; outelement3i[5] = remappedelement[0] + 1; outelement3i += 6; outtriangles += 2; } } } else { for (i = 0;i < numshadowmarktris;i++) { int remappedelement[3]; int markindex; const int *neighbortriangle; markindex = shadowmarktris[i] * 3; element = inelement3i + markindex; neighbortriangle = inneighbor3i + markindex; // output the front and back triangles outelement3i[0] = vertexremap[element[2]]; outelement3i[1] = vertexremap[element[1]]; outelement3i[2] = vertexremap[element[0]]; outelement3i[3] = vertexremap[element[0]] + 1; outelement3i[4] = vertexremap[element[1]] + 1; outelement3i[5] = vertexremap[element[2]] + 1; outelement3i += 6; outtriangles += 2; // output the sides (facing outward from this triangle) if (shadowmark[neighbortriangle[0]] != shadowmarkcount) { remappedelement[0] = vertexremap[element[0]]; remappedelement[1] = vertexremap[element[1]]; outelement3i[0] = remappedelement[0]; outelement3i[1] = remappedelement[1]; outelement3i[2] = remappedelement[1] + 1; outelement3i[3] = remappedelement[0]; outelement3i[4] = remappedelement[1] + 1; outelement3i[5] = remappedelement[0] + 1; outelement3i += 6; outtriangles += 2; } if (shadowmark[neighbortriangle[1]] != shadowmarkcount) { remappedelement[1] = vertexremap[element[1]]; remappedelement[2] = vertexremap[element[2]]; outelement3i[0] = remappedelement[1]; outelement3i[1] = remappedelement[2]; outelement3i[2] = remappedelement[2] + 1; outelement3i[3] = remappedelement[1]; outelement3i[4] = remappedelement[2] + 1; outelement3i[5] = remappedelement[1] + 1; outelement3i += 6; outtriangles += 2; } if (shadowmark[neighbortriangle[2]] != shadowmarkcount) { remappedelement[0] = vertexremap[element[0]]; remappedelement[2] = vertexremap[element[2]]; outelement3i[0] = remappedelement[2]; outelement3i[1] = remappedelement[0]; outelement3i[2] = remappedelement[0] + 1; outelement3i[3] = remappedelement[2]; outelement3i[4] = remappedelement[0] + 1; outelement3i[5] = remappedelement[2] + 1; outelement3i += 6; outtriangles += 2; } } } if (outnumvertices) *outnumvertices = outvertices; return outtriangles; } 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) { int i, j, k; int outtriangles = 0, outvertices = 0; const int *element; const float *vertex; float ratio, direction[3], projectvector[3]; qboolean side[4]; if (projectdirection) VectorScale(projectdirection, projectdistance, projectvector); else VectorClear(projectvector); for (i = 0;i < numshadowmarktris;i++) { int remappedelement[3]; int markindex; const int *neighbortriangle; markindex = shadowmarktris[i] * 3; neighbortriangle = inneighbor3i + markindex; side[0] = shadowmark[neighbortriangle[0]] == shadowmarkcount; side[1] = shadowmark[neighbortriangle[1]] == shadowmarkcount; side[2] = shadowmark[neighbortriangle[2]] == shadowmarkcount; if (side[0] + side[1] + side[2] == 0) continue; side[3] = side[0]; element = inelement3i + markindex; // create the vertices for (j = 0;j < 3;j++) { if (side[j] + side[j+1] == 0) continue; k = element[j]; if (vertexupdate[k] != vertexupdatenum) { vertexupdate[k] = vertexupdatenum; vertexremap[k] = outvertices; vertex = invertex3f + k * 3; VectorCopy(vertex, outvertex3f); if (projectdirection) { // project one copy of the vertex according to projectvector VectorAdd(vertex, projectvector, (outvertex3f + 3)); } else { // project one copy of the vertex to the sphere radius of the light // (FIXME: would projecting it to the light box be better?) VectorSubtract(vertex, projectorigin, direction); ratio = projectdistance / VectorLength(direction); VectorMA(projectorigin, ratio, direction, (outvertex3f + 3)); } outvertex3f += 6; outvertices += 2; } } // output the sides (facing outward from this triangle) if (!side[0]) { remappedelement[0] = vertexremap[element[0]]; remappedelement[1] = vertexremap[element[1]]; outelement3i[0] = remappedelement[1]; outelement3i[1] = remappedelement[0]; outelement3i[2] = remappedelement[0] + 1; outelement3i[3] = remappedelement[1]; outelement3i[4] = remappedelement[0] + 1; outelement3i[5] = remappedelement[1] + 1; outelement3i += 6; outtriangles += 2; } if (!side[1]) { remappedelement[1] = vertexremap[element[1]]; remappedelement[2] = vertexremap[element[2]]; outelement3i[0] = remappedelement[2]; outelement3i[1] = remappedelement[1]; outelement3i[2] = remappedelement[1] + 1; outelement3i[3] = remappedelement[2]; outelement3i[4] = remappedelement[1] + 1; outelement3i[5] = remappedelement[2] + 1; outelement3i += 6; outtriangles += 2; } if (!side[2]) { remappedelement[0] = vertexremap[element[0]]; remappedelement[2] = vertexremap[element[2]]; outelement3i[0] = remappedelement[0]; outelement3i[1] = remappedelement[2]; outelement3i[2] = remappedelement[2] + 1; outelement3i[3] = remappedelement[0]; outelement3i[4] = remappedelement[2] + 1; outelement3i[5] = remappedelement[0] + 1; outelement3i += 6; outtriangles += 2; } } if (outnumvertices) *outnumvertices = outvertices; return outtriangles; } 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) { int t, tend; const int *e; const float *v[3]; float normal[3]; if (!BoxesOverlap(lightmins, lightmaxs, surfacemins, surfacemaxs)) return; tend = firsttriangle + numtris; if (BoxInsideBox(surfacemins, surfacemaxs, lightmins, lightmaxs)) { // surface box entirely inside light box, no box cull if (projectdirection) { for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3) { TriangleNormal(invertex3f + e[0] * 3, invertex3f + e[1] * 3, invertex3f + e[2] * 3, normal); if (r_shadow_frontsidecasting.integer == (DotProduct(normal, projectdirection) < 0)) shadowmarklist[numshadowmark++] = t; } } else { for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3) if (r_shadow_frontsidecasting.integer == PointInfrontOfTriangle(projectorigin, invertex3f + e[0] * 3, invertex3f + e[1] * 3, invertex3f + e[2] * 3)) shadowmarklist[numshadowmark++] = t; } } else { // surface box not entirely inside light box, cull each triangle if (projectdirection) { for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3) { v[0] = invertex3f + e[0] * 3; v[1] = invertex3f + e[1] * 3; v[2] = invertex3f + e[2] * 3; TriangleNormal(v[0], v[1], v[2], normal); if (r_shadow_frontsidecasting.integer == (DotProduct(normal, projectdirection) < 0) && TriangleOverlapsBox(v[0], v[1], v[2], lightmins, lightmaxs)) shadowmarklist[numshadowmark++] = t; } } else { for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3) { v[0] = invertex3f + e[0] * 3; v[1] = invertex3f + e[1] * 3; v[2] = invertex3f + e[2] * 3; if (r_shadow_frontsidecasting.integer == PointInfrontOfTriangle(projectorigin, v[0], v[1], v[2]) && TriangleOverlapsBox(v[0], v[1], v[2], lightmins, lightmaxs)) shadowmarklist[numshadowmark++] = t; } } } } qboolean R_Shadow_UseZPass(vec3_t mins, vec3_t maxs) { #if 1 return false; #else if (r_shadow_compilingrtlight || !r_shadow_frontsidecasting.integer || !r_shadow_usezpassifpossible.integer) return false; // check if the shadow volume intersects the near plane // // a ray between the eye and light origin may intersect the caster, // indicating that the shadow may touch the eye location, however we must // test the near plane (a polygon), not merely the eye location, so it is // easiest to enlarge the caster bounding shape slightly for this. // TODO return true; #endif } 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) { int i, tris, outverts; if (projectdistance < 0.1) { Con_Printf("R_Shadow_Volume: projectdistance %f\n", projectdistance); return; } if (!numverts || !nummarktris) return; // make sure shadowelements is big enough for this volume if (maxshadowtriangles < nummarktris*8 || maxshadowvertices < numverts*2) R_Shadow_ResizeShadowArrays(numverts, nummarktris, 2, 8); if (maxvertexupdate < numverts) { maxvertexupdate = numverts; if (vertexupdate) Mem_Free(vertexupdate); if (vertexremap) Mem_Free(vertexremap); vertexupdate = (int *)Mem_Alloc(r_main_mempool, maxvertexupdate * sizeof(int)); vertexremap = (int *)Mem_Alloc(r_main_mempool, maxvertexupdate * sizeof(int)); vertexupdatenum = 0; } vertexupdatenum++; if (vertexupdatenum == 0) { vertexupdatenum = 1; memset(vertexupdate, 0, maxvertexupdate * sizeof(int)); memset(vertexremap, 0, maxvertexupdate * sizeof(int)); } for (i = 0;i < nummarktris;i++) shadowmark[marktris[i]] = shadowmarkcount; if (r_shadow_compilingrtlight) { // if we're compiling an rtlight, capture the mesh //tris = R_Shadow_ConstructShadowVolume_ZPass(numverts, numtris, elements, neighbors, invertex3f, &outverts, shadowelements, shadowvertex3f, projectorigin, projectdirection, projectdistance, nummarktris, marktris); //Mod_ShadowMesh_AddMesh(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_zpass, NULL, NULL, NULL, shadowvertex3f, NULL, NULL, NULL, NULL, tris, shadowelements); tris = R_Shadow_ConstructShadowVolume_ZFail(numverts, numtris, elements, neighbors, invertex3f, &outverts, shadowelements, shadowvertex3f, projectorigin, projectdirection, projectdistance, nummarktris, marktris); Mod_ShadowMesh_AddMesh(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_zfail, NULL, NULL, NULL, shadowvertex3f, NULL, NULL, NULL, NULL, tris, shadowelements); } else if (r_shadow_rendermode == R_SHADOW_RENDERMODE_VISIBLEVOLUMES) { tris = R_Shadow_ConstructShadowVolume_ZFail(numverts, numtris, elements, neighbors, invertex3f, &outverts, shadowelements, shadowvertex3f, projectorigin, projectdirection, projectdistance, nummarktris, marktris); R_Mesh_PrepareVertices_Position_Arrays(outverts, shadowvertex3f); R_Mesh_Draw(0, outverts, 0, tris, shadowelements, NULL, 0, NULL, NULL, 0); } else { // decide which type of shadow to generate and set stencil mode R_Shadow_RenderMode_StencilShadowVolumes(R_Shadow_UseZPass(trismins, trismaxs)); // generate the sides or a solid volume, depending on type if (r_shadow_rendermode >= R_SHADOW_RENDERMODE_ZPASS_STENCIL && r_shadow_rendermode <= R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE) tris = R_Shadow_ConstructShadowVolume_ZPass(numverts, numtris, elements, neighbors, invertex3f, &outverts, shadowelements, shadowvertex3f, projectorigin, projectdirection, projectdistance, nummarktris, marktris); else tris = R_Shadow_ConstructShadowVolume_ZFail(numverts, numtris, elements, neighbors, invertex3f, &outverts, shadowelements, shadowvertex3f, projectorigin, projectdirection, projectdistance, nummarktris, marktris); r_refdef.stats.lights_dynamicshadowtriangles += tris; r_refdef.stats.lights_shadowtriangles += tris; if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZPASS_STENCIL) { // increment stencil if frontface is infront of depthbuffer GL_CullFace(r_refdef.view.cullface_front); R_SetStencil(true, 255, GL_KEEP, GL_KEEP, GL_DECR, GL_ALWAYS, 128, 255); R_Mesh_Draw(0, outverts, 0, tris, shadowelements, NULL, 0, NULL, NULL, 0); // decrement stencil if backface is infront of depthbuffer GL_CullFace(r_refdef.view.cullface_back); R_SetStencil(true, 255, GL_KEEP, GL_KEEP, GL_INCR, GL_ALWAYS, 128, 255); } else if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZFAIL_STENCIL) { // decrement stencil if backface is behind depthbuffer GL_CullFace(r_refdef.view.cullface_front); R_SetStencil(true, 255, GL_KEEP, GL_DECR, GL_KEEP, GL_ALWAYS, 128, 255); R_Mesh_Draw(0, outverts, 0, tris, shadowelements, NULL, 0, NULL, NULL, 0); // increment stencil if frontface is behind depthbuffer GL_CullFace(r_refdef.view.cullface_back); R_SetStencil(true, 255, GL_KEEP, GL_INCR, GL_KEEP, GL_ALWAYS, 128, 255); } R_Mesh_PrepareVertices_Position_Arrays(outverts, shadowvertex3f); R_Mesh_Draw(0, outverts, 0, tris, shadowelements, NULL, 0, NULL, NULL, 0); } } int R_Shadow_CalcTriangleSideMask(const vec3_t p1, const vec3_t p2, const vec3_t p3, float bias) { // p1, p2, p3 are in the cubemap's local coordinate system // bias = border/(size - border) int mask = 0x3F; float dp1 = p1[0] + p1[1], dn1 = p1[0] - p1[1], ap1 = fabs(dp1), an1 = fabs(dn1), dp2 = p2[0] + p2[1], dn2 = p2[0] - p2[1], ap2 = fabs(dp2), an2 = fabs(dn2), dp3 = p3[0] + p3[1], dn3 = p3[0] - p3[1], ap3 = fabs(dp3), an3 = fabs(dn3); if(ap1 > bias*an1 && ap2 > bias*an2 && ap3 > bias*an3) mask &= (3<<4) | (dp1 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2)) | (dp2 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2)) | (dp3 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2)); if(an1 > bias*ap1 && an2 > bias*ap2 && an3 > bias*ap3) mask &= (3<<4) | (dn1 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2)) | (dn2 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2)) | (dn3 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2)); dp1 = p1[1] + p1[2], dn1 = p1[1] - p1[2], ap1 = fabs(dp1), an1 = fabs(dn1), dp2 = p2[1] + p2[2], dn2 = p2[1] - p2[2], ap2 = fabs(dp2), an2 = fabs(dn2), dp3 = p3[1] + p3[2], dn3 = p3[1] - p3[2], ap3 = fabs(dp3), an3 = fabs(dn3); if(ap1 > bias*an1 && ap2 > bias*an2 && ap3 > bias*an3) mask &= (3<<0) | (dp1 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4)) | (dp2 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4)) | (dp3 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4)); if(an1 > bias*ap1 && an2 > bias*ap2 && an3 > bias*ap3) mask &= (3<<0) | (dn1 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4)) | (dn2 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4)) | (dn3 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4)); dp1 = p1[2] + p1[0], dn1 = p1[2] - p1[0], ap1 = fabs(dp1), an1 = fabs(dn1), dp2 = p2[2] + p2[0], dn2 = p2[2] - p2[0], ap2 = fabs(dp2), an2 = fabs(dn2), dp3 = p3[2] + p3[0], dn3 = p3[2] - p3[0], ap3 = fabs(dp3), an3 = fabs(dn3); if(ap1 > bias*an1 && ap2 > bias*an2 && ap3 > bias*an3) mask &= (3<<2) | (dp1 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0)) | (dp2 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0)) | (dp3 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0)); if(an1 > bias*ap1 && an2 > bias*ap2 && an3 > bias*ap3) mask &= (3<<2) | (dn1 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0)) | (dn2 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0)) | (dn3 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0)); return mask; } int R_Shadow_CalcBBoxSideMask(const vec3_t mins, const vec3_t maxs, const matrix4x4_t *worldtolight, const matrix4x4_t *radiustolight, float bias) { vec3_t center, radius, lightcenter, lightradius, pmin, pmax; float dp1, dn1, ap1, an1, dp2, dn2, ap2, an2; int mask = 0x3F; VectorSubtract(maxs, mins, radius); VectorScale(radius, 0.5f, radius); VectorAdd(mins, radius, center); Matrix4x4_Transform(worldtolight, center, lightcenter); Matrix4x4_Transform3x3(radiustolight, radius, lightradius); VectorSubtract(lightcenter, lightradius, pmin); VectorAdd(lightcenter, lightradius, pmax); dp1 = pmax[0] + pmax[1], dn1 = pmax[0] - pmin[1], ap1 = fabs(dp1), an1 = fabs(dn1), dp2 = pmin[0] + pmin[1], dn2 = pmin[0] - pmax[1], ap2 = fabs(dp2), an2 = fabs(dn2); if(ap1 > bias*an1 && ap2 > bias*an2) mask &= (3<<4) | (dp1 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2)) | (dp2 >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2)); if(an1 > bias*ap1 && an2 > bias*ap2) mask &= (3<<4) | (dn1 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2)) | (dn2 >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2)); dp1 = pmax[1] + pmax[2], dn1 = pmax[1] - pmin[2], ap1 = fabs(dp1), an1 = fabs(dn1), dp2 = pmin[1] + pmin[2], dn2 = pmin[1] - pmax[2], ap2 = fabs(dp2), an2 = fabs(dn2); if(ap1 > bias*an1 && ap2 > bias*an2) mask &= (3<<0) | (dp1 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4)) | (dp2 >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4)); if(an1 > bias*ap1 && an2 > bias*ap2) mask &= (3<<0) | (dn1 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4)) | (dn2 >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4)); dp1 = pmax[2] + pmax[0], dn1 = pmax[2] - pmin[0], ap1 = fabs(dp1), an1 = fabs(dn1), dp2 = pmin[2] + pmin[0], dn2 = pmin[2] - pmax[0], ap2 = fabs(dp2), an2 = fabs(dn2); if(ap1 > bias*an1 && ap2 > bias*an2) mask &= (3<<2) | (dp1 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0)) | (dp2 >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0)); if(an1 > bias*ap1 && an2 > bias*ap2) mask &= (3<<2) | (dn1 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0)) | (dn2 >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0)); return mask; } #define R_Shadow_CalcEntitySideMask(ent, worldtolight, radiustolight, bias) R_Shadow_CalcBBoxSideMask((ent)->mins, (ent)->maxs, worldtolight, radiustolight, bias) int R_Shadow_CalcSphereSideMask(const vec3_t p, float radius, float bias) { // p is in the cubemap's local coordinate system // bias = border/(size - border) float dxyp = p[0] + p[1], dxyn = p[0] - p[1], axyp = fabs(dxyp), axyn = fabs(dxyn); float dyzp = p[1] + p[2], dyzn = p[1] - p[2], ayzp = fabs(dyzp), ayzn = fabs(dyzn); float dzxp = p[2] + p[0], dzxn = p[2] - p[0], azxp = fabs(dzxp), azxn = fabs(dzxn); int mask = 0x3F; if(axyp > bias*axyn + radius) mask &= dxyp < 0 ? ~((1<<0)|(1<<2)) : ~((2<<0)|(2<<2)); if(axyn > bias*axyp + radius) mask &= dxyn < 0 ? ~((1<<0)|(2<<2)) : ~((2<<0)|(1<<2)); if(ayzp > bias*ayzn + radius) mask &= dyzp < 0 ? ~((1<<2)|(1<<4)) : ~((2<<2)|(2<<4)); if(ayzn > bias*ayzp + radius) mask &= dyzn < 0 ? ~((1<<2)|(2<<4)) : ~((2<<2)|(1<<4)); if(azxp > bias*azxn + radius) mask &= dzxp < 0 ? ~((1<<4)|(1<<0)) : ~((2<<4)|(2<<0)); if(azxn > bias*azxp + radius) mask &= dzxn < 0 ? ~((1<<4)|(2<<0)) : ~((2<<4)|(1<<0)); return mask; } int R_Shadow_CullFrustumSides(rtlight_t *rtlight, float size, float border) { int i; vec3_t p, n; int sides = 0x3F, masks[6] = { 3<<4, 3<<4, 3<<0, 3<<0, 3<<2, 3<<2 }; float scale = (size - 2*border)/size, len; float bias = border / (float)(size - border), dp, dn, ap, an; // check if cone enclosing side would cross frustum plane scale = 2 / (scale*scale + 2); for (i = 0;i < 5;i++) { if (PlaneDiff(rtlight->shadoworigin, &r_refdef.view.frustum[i]) > -0.03125) continue; Matrix4x4_Transform3x3(&rtlight->matrix_worldtolight, r_refdef.view.frustum[i].normal, n); len = scale*VectorLength2(n); if(n[0]*n[0] > len) sides &= n[0] < 0 ? ~(1<<0) : ~(2 << 0); if(n[1]*n[1] > len) sides &= n[1] < 0 ? ~(1<<2) : ~(2 << 2); if(n[2]*n[2] > len) sides &= n[2] < 0 ? ~(1<<4) : ~(2 << 4); } if (PlaneDiff(rtlight->shadoworigin, &r_refdef.view.frustum[4]) >= r_refdef.farclip - r_refdef.nearclip + 0.03125) { Matrix4x4_Transform3x3(&rtlight->matrix_worldtolight, r_refdef.view.frustum[4].normal, n); len = scale*VectorLength(n); if(n[0]*n[0] > len) sides &= n[0] >= 0 ? ~(1<<0) : ~(2 << 0); if(n[1]*n[1] > len) sides &= n[1] >= 0 ? ~(1<<2) : ~(2 << 2); if(n[2]*n[2] > len) sides &= n[2] >= 0 ? ~(1<<4) : ~(2 << 4); } // this next test usually clips off more sides than the former, but occasionally clips fewer/different ones, so do both and combine results // check if frustum corners/origin cross plane sides #if 1 // infinite version, assumes frustum corners merely give direction and extend to infinite distance Matrix4x4_Transform(&rtlight->matrix_worldtolight, r_refdef.view.origin, p); dp = p[0] + p[1], dn = p[0] - p[1], ap = fabs(dp), an = fabs(dn); masks[0] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2)); masks[1] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2)); dp = p[1] + p[2], dn = p[1] - p[2], ap = fabs(dp), an = fabs(dn); masks[2] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4)); masks[3] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4)); dp = p[2] + p[0], dn = p[2] - p[0], ap = fabs(dp), an = fabs(dn); masks[4] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0)); masks[5] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0)); for (i = 0;i < 4;i++) { Matrix4x4_Transform(&rtlight->matrix_worldtolight, r_refdef.view.frustumcorner[i], n); VectorSubtract(n, p, n); dp = n[0] + n[1], dn = n[0] - n[1], ap = fabs(dp), an = fabs(dn); if(ap > 0) masks[0] |= dp >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2); if(an > 0) masks[1] |= dn >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2); dp = n[1] + n[2], dn = n[1] - n[2], ap = fabs(dp), an = fabs(dn); if(ap > 0) masks[2] |= dp >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4); if(an > 0) masks[3] |= dn >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4); dp = n[2] + n[0], dn = n[2] - n[0], ap = fabs(dp), an = fabs(dn); if(ap > 0) masks[4] |= dp >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0); if(an > 0) masks[5] |= dn >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0); } #else // finite version, assumes corners are a finite distance from origin dependent on far plane for (i = 0;i < 5;i++) { Matrix4x4_Transform(&rtlight->matrix_worldtolight, !i ? r_refdef.view.origin : r_refdef.view.frustumcorner[i-1], p); dp = p[0] + p[1], dn = p[0] - p[1], ap = fabs(dp), an = fabs(dn); masks[0] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2)); masks[1] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2)); dp = p[1] + p[2], dn = p[1] - p[2], ap = fabs(dp), an = fabs(dn); masks[2] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4)); masks[3] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4)); dp = p[2] + p[0], dn = p[2] - p[0], ap = fabs(dp), an = fabs(dn); masks[4] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0)); masks[5] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0)); } #endif return sides & masks[0] & masks[1] & masks[2] & masks[3] & masks[4] & masks[5]; } int R_Shadow_ChooseSidesFromBox(int firsttriangle, int numtris, const float *invertex3f, const int *elements, const matrix4x4_t *worldtolight, const vec3_t projectorigin, const vec3_t projectdirection, const vec3_t lightmins, const vec3_t lightmaxs, const vec3_t surfacemins, const vec3_t surfacemaxs, int *totals) { int t, tend; const int *e; const float *v[3]; float normal[3]; vec3_t p[3]; float bias; int mask, surfacemask = 0; if (!BoxesOverlap(lightmins, lightmaxs, surfacemins, surfacemaxs)) return 0; bias = r_shadow_shadowmapborder / (float)(r_shadow_shadowmapmaxsize - r_shadow_shadowmapborder); tend = firsttriangle + numtris; if (BoxInsideBox(surfacemins, surfacemaxs, lightmins, lightmaxs)) { // surface box entirely inside light box, no box cull if (projectdirection) { for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3) { v[0] = invertex3f + e[0] * 3, v[1] = invertex3f + e[1] * 3, v[2] = invertex3f + e[2] * 3; TriangleNormal(v[0], v[1], v[2], normal); if (r_shadow_frontsidecasting.integer == (DotProduct(normal, projectdirection) < 0)) { Matrix4x4_Transform(worldtolight, v[0], p[0]), Matrix4x4_Transform(worldtolight, v[1], p[1]), Matrix4x4_Transform(worldtolight, v[2], p[2]); mask = R_Shadow_CalcTriangleSideMask(p[0], p[1], p[2], bias); surfacemask |= mask; if(totals) { totals[0] += mask&1, totals[1] += (mask>>1)&1, totals[2] += (mask>>2)&1, totals[3] += (mask>>3)&1, totals[4] += (mask>>4)&1, totals[5] += mask>>5; shadowsides[numshadowsides] = mask; shadowsideslist[numshadowsides++] = t; } } } } else { for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3) { v[0] = invertex3f + e[0] * 3, v[1] = invertex3f + e[1] * 3, v[2] = invertex3f + e[2] * 3; if (r_shadow_frontsidecasting.integer == PointInfrontOfTriangle(projectorigin, v[0], v[1], v[2])) { Matrix4x4_Transform(worldtolight, v[0], p[0]), Matrix4x4_Transform(worldtolight, v[1], p[1]), Matrix4x4_Transform(worldtolight, v[2], p[2]); mask = R_Shadow_CalcTriangleSideMask(p[0], p[1], p[2], bias); surfacemask |= mask; if(totals) { totals[0] += mask&1, totals[1] += (mask>>1)&1, totals[2] += (mask>>2)&1, totals[3] += (mask>>3)&1, totals[4] += (mask>>4)&1, totals[5] += mask>>5; shadowsides[numshadowsides] = mask; shadowsideslist[numshadowsides++] = t; } } } } } else { // surface box not entirely inside light box, cull each triangle if (projectdirection) { for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3) { v[0] = invertex3f + e[0] * 3, v[1] = invertex3f + e[1] * 3, v[2] = invertex3f + e[2] * 3; TriangleNormal(v[0], v[1], v[2], normal); if (r_shadow_frontsidecasting.integer == (DotProduct(normal, projectdirection) < 0) && TriangleOverlapsBox(v[0], v[1], v[2], lightmins, lightmaxs)) { Matrix4x4_Transform(worldtolight, v[0], p[0]), Matrix4x4_Transform(worldtolight, v[1], p[1]), Matrix4x4_Transform(worldtolight, v[2], p[2]); mask = R_Shadow_CalcTriangleSideMask(p[0], p[1], p[2], bias); surfacemask |= mask; if(totals) { totals[0] += mask&1, totals[1] += (mask>>1)&1, totals[2] += (mask>>2)&1, totals[3] += (mask>>3)&1, totals[4] += (mask>>4)&1, totals[5] += mask>>5; shadowsides[numshadowsides] = mask; shadowsideslist[numshadowsides++] = t; } } } } else { for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3) { v[0] = invertex3f + e[0] * 3, v[1] = invertex3f + e[1] * 3, v[2] = invertex3f + e[2] * 3; if (r_shadow_frontsidecasting.integer == PointInfrontOfTriangle(projectorigin, v[0], v[1], v[2]) && TriangleOverlapsBox(v[0], v[1], v[2], lightmins, lightmaxs)) { Matrix4x4_Transform(worldtolight, v[0], p[0]), Matrix4x4_Transform(worldtolight, v[1], p[1]), Matrix4x4_Transform(worldtolight, v[2], p[2]); mask = R_Shadow_CalcTriangleSideMask(p[0], p[1], p[2], bias); surfacemask |= mask; if(totals) { totals[0] += mask&1, totals[1] += (mask>>1)&1, totals[2] += (mask>>2)&1, totals[3] += (mask>>3)&1, totals[4] += (mask>>4)&1, totals[5] += mask>>5; shadowsides[numshadowsides] = mask; shadowsideslist[numshadowsides++] = t; } } } } } return surfacemask; } void R_Shadow_ShadowMapFromList(int numverts, int numtris, const float *vertex3f, const int *elements, int numsidetris, const int *sidetotals, const unsigned char *sides, const int *sidetris) { int i, j, outtriangles = 0; int *outelement3i[6]; if (!numverts || !numsidetris || !r_shadow_compilingrtlight) return; outtriangles = sidetotals[0] + sidetotals[1] + sidetotals[2] + sidetotals[3] + sidetotals[4] + sidetotals[5]; // make sure shadowelements is big enough for this mesh if (maxshadowtriangles < outtriangles) R_Shadow_ResizeShadowArrays(0, outtriangles, 0, 1); // compute the offset and size of the separate index lists for each cubemap side outtriangles = 0; for (i = 0;i < 6;i++) { outelement3i[i] = shadowelements + outtriangles * 3; r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap->sideoffsets[i] = outtriangles; r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap->sidetotals[i] = sidetotals[i]; outtriangles += sidetotals[i]; } // gather up the (sparse) triangles into separate index lists for each cubemap side for (i = 0;i < numsidetris;i++) { const int *element = elements + sidetris[i] * 3; for (j = 0;j < 6;j++) { if (sides[i] & (1 << j)) { outelement3i[j][0] = element[0]; outelement3i[j][1] = element[1]; outelement3i[j][2] = element[2]; outelement3i[j] += 3; } } } Mod_ShadowMesh_AddMesh(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap, NULL, NULL, NULL, vertex3f, NULL, NULL, NULL, NULL, outtriangles, shadowelements); } static void R_Shadow_MakeTextures_MakeCorona(void) { float dx, dy; int x, y, a; unsigned char pixels[32][32][4]; for (y = 0;y < 32;y++) { dy = (y - 15.5f) * (1.0f / 16.0f); for (x = 0;x < 32;x++) { dx = (x - 15.5f) * (1.0f / 16.0f); a = (int)(((1.0f / (dx * dx + dy * dy + 0.2f)) - (1.0f / (1.0f + 0.2))) * 32.0f / (1.0f / (1.0f + 0.2))); a = bound(0, a, 255); pixels[y][x][0] = a; pixels[y][x][1] = a; pixels[y][x][2] = a; pixels[y][x][3] = 255; } } r_shadow_lightcorona = R_SkinFrame_LoadInternalBGRA("lightcorona", TEXF_FORCELINEAR, &pixels[0][0][0], 32, 32); } static unsigned int R_Shadow_MakeTextures_SamplePoint(float x, float y, float z) { float dist = sqrt(x*x+y*y+z*z); float intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0; // note this code could suffer byte order issues except that it is multiplying by an integer that reads the same both ways return (unsigned char)bound(0, intensity * 256.0f, 255) * 0x01010101; } static void R_Shadow_MakeTextures(void) { int x, y, z; float intensity, dist; unsigned int *data; R_Shadow_FreeShadowMaps(); R_FreeTexturePool(&r_shadow_texturepool); r_shadow_texturepool = R_AllocTexturePool(); r_shadow_attenlinearscale = r_shadow_lightattenuationlinearscale.value; r_shadow_attendividebias = r_shadow_lightattenuationdividebias.value; data = (unsigned int *)Mem_Alloc(tempmempool, max(max(ATTEN3DSIZE*ATTEN3DSIZE*ATTEN3DSIZE, ATTEN2DSIZE*ATTEN2DSIZE), ATTEN1DSIZE) * 4); // the table includes one additional value to avoid the need to clamp indexing due to minor math errors for (x = 0;x <= ATTENTABLESIZE;x++) { dist = (x + 0.5f) * (1.0f / ATTENTABLESIZE) * (1.0f / 0.9375); intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0; r_shadow_attentable[x] = bound(0, intensity, 1); } // 1D gradient texture for (x = 0;x < ATTEN1DSIZE;x++) data[x] = R_Shadow_MakeTextures_SamplePoint((x + 0.5f) * (1.0f / ATTEN1DSIZE) * (1.0f / 0.9375), 0, 0); r_shadow_attenuationgradienttexture = R_LoadTexture2D(r_shadow_texturepool, "attenuation1d", ATTEN1DSIZE, 1, (unsigned char *)data, TEXTYPE_BGRA, TEXF_CLAMP | TEXF_ALPHA | TEXF_FORCELINEAR, -1, NULL); // 2D circle texture for (y = 0;y < ATTEN2DSIZE;y++) for (x = 0;x < ATTEN2DSIZE;x++) 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); r_shadow_attenuation2dtexture = R_LoadTexture2D(r_shadow_texturepool, "attenuation2d", ATTEN2DSIZE, ATTEN2DSIZE, (unsigned char *)data, TEXTYPE_BGRA, TEXF_CLAMP | TEXF_ALPHA | TEXF_FORCELINEAR, -1, NULL); // 3D sphere texture if (r_shadow_texture3d.integer && vid.support.ext_texture_3d) { for (z = 0;z < ATTEN3DSIZE;z++) for (y = 0;y < ATTEN3DSIZE;y++) for (x = 0;x < ATTEN3DSIZE;x++) 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)); r_shadow_attenuation3dtexture = R_LoadTexture3D(r_shadow_texturepool, "attenuation3d", ATTEN3DSIZE, ATTEN3DSIZE, ATTEN3DSIZE, (unsigned char *)data, TEXTYPE_BGRA, TEXF_CLAMP | TEXF_ALPHA | TEXF_FORCELINEAR, -1, NULL); } else r_shadow_attenuation3dtexture = NULL; Mem_Free(data); R_Shadow_MakeTextures_MakeCorona(); // Editor light sprites r_editlights_sprcursor = R_SkinFrame_LoadInternal8bit("gfx/editlights/cursor", TEXF_ALPHA | TEXF_CLAMP, (const unsigned char *) "................" ".3............3." "..5...2332...5.." "...7.3....3.7..." "....7......7...." "...3.7....7.3..." "..2...7..7...2.." "..3..........3.." "..3..........3.." "..2...7..7...2.." "...3.7....7.3..." "....7......7...." "...7.3....3.7..." "..5...2332...5.." ".3............3." "................" , 16, 16, palette_bgra_embeddedpic, palette_bgra_embeddedpic); r_editlights_sprlight = R_SkinFrame_LoadInternal8bit("gfx/editlights/light", TEXF_ALPHA | TEXF_CLAMP, (const unsigned char *) "................" "................" "......1111......" "....11233211...." "...1234554321..." "...1356776531..." "..124677776421.." "..135777777531.." "..135777777531.." "..124677776421.." "...1356776531..." "...1234554321..." "....11233211...." "......1111......" "................" "................" , 16, 16, palette_bgra_embeddedpic, palette_bgra_embeddedpic); r_editlights_sprnoshadowlight = R_SkinFrame_LoadInternal8bit("gfx/editlights/noshadow", TEXF_ALPHA | TEXF_CLAMP, (const unsigned char *) "................" "................" "......1111......" "....11233211...." "...1234554321..." "...1356226531..." "..12462..26421.." "..1352....2531.." "..1352....2531.." "..12462..26421.." "...1356226531..." "...1234554321..." "....11233211...." "......1111......" "................" "................" , 16, 16, palette_bgra_embeddedpic, palette_bgra_embeddedpic); r_editlights_sprcubemaplight = R_SkinFrame_LoadInternal8bit("gfx/editlights/cubemaplight", TEXF_ALPHA | TEXF_CLAMP, (const unsigned char *) "................" "................" "......2772......" "....27755772...." "..277533335772.." "..753333333357.." "..777533335777.." "..735775577537.." "..733357753337.." "..733337733337.." "..753337733357.." "..277537735772.." "....27777772...." "......2772......" "................" "................" , 16, 16, palette_bgra_embeddedpic, palette_bgra_embeddedpic); r_editlights_sprcubemapnoshadowlight = R_SkinFrame_LoadInternal8bit("gfx/editlights/cubemapnoshadowlight", TEXF_ALPHA | TEXF_CLAMP, (const unsigned char *) "................" "................" "......2772......" "....27722772...." "..2772....2772.." "..72........27.." "..7772....2777.." "..7.27722772.7.." "..7...2772...7.." "..7....77....7.." "..72...77...27.." "..2772.77.2772.." "....27777772...." "......2772......" "................" "................" , 16, 16, palette_bgra_embeddedpic, palette_bgra_embeddedpic); r_editlights_sprselection = R_SkinFrame_LoadInternal8bit("gfx/editlights/selection", TEXF_ALPHA | TEXF_CLAMP, (unsigned char *) "................" ".777752..257777." ".742........247." ".72..........27." ".7............7." ".5............5." ".2............2." "................" "................" ".2............2." ".5............5." ".7............7." ".72..........27." ".742........247." ".777752..257777." "................" , 16, 16, palette_bgra_embeddedpic, palette_bgra_embeddedpic); } void R_Shadow_ValidateCvars(void) { if (r_shadow_texture3d.integer && !vid.support.ext_texture_3d) Cvar_SetValueQuick(&r_shadow_texture3d, 0); if (gl_ext_separatestencil.integer && !vid.support.ati_separate_stencil) Cvar_SetValueQuick(&gl_ext_separatestencil, 0); if (gl_ext_stenciltwoside.integer && !vid.support.ext_stencil_two_side) Cvar_SetValueQuick(&gl_ext_stenciltwoside, 0); } //static const r_vertexposition_t resetvertexposition[3] = {{0, 0, 0}}; void R_Shadow_RenderMode_Begin(void) { #if 0 GLint drawbuffer; GLint readbuffer; #endif R_Shadow_ValidateCvars(); if (!r_shadow_attenuation2dtexture || (!r_shadow_attenuation3dtexture && r_shadow_texture3d.integer) || r_shadow_lightattenuationdividebias.value != r_shadow_attendividebias || r_shadow_lightattenuationlinearscale.value != r_shadow_attenlinearscale) R_Shadow_MakeTextures(); CHECKGLERROR R_Mesh_ResetTextureState(); // R_Mesh_PrepareVertices_Position(0, resetvertexposition, NULL); GL_BlendFunc(GL_ONE, GL_ZERO); GL_DepthRange(0, 1); GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset); GL_DepthTest(true); GL_DepthMask(false); GL_Color(0, 0, 0, 1); GL_Scissor(r_refdef.view.viewport.x, r_refdef.view.viewport.y, r_refdef.view.viewport.width, r_refdef.view.viewport.height); r_shadow_rendermode = R_SHADOW_RENDERMODE_NONE; if (gl_ext_separatestencil.integer && vid.support.ati_separate_stencil) { r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_ZPASS_SEPARATESTENCIL; r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_ZFAIL_SEPARATESTENCIL; } else if (gl_ext_stenciltwoside.integer && vid.support.ext_stencil_two_side) { r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE; r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_ZFAIL_STENCILTWOSIDE; } else { r_shadow_shadowingrendermode_zpass = R_SHADOW_RENDERMODE_ZPASS_STENCIL; r_shadow_shadowingrendermode_zfail = R_SHADOW_RENDERMODE_ZFAIL_STENCIL; } switch(vid.renderpath) { case RENDERPATH_GL20: case RENDERPATH_CGGL: case RENDERPATH_D3D9: case RENDERPATH_D3D10: case RENDERPATH_D3D11: r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_GLSL; break; case RENDERPATH_GL13: case RENDERPATH_GL11: if (r_textureunits.integer >= 2 && vid.texunits >= 2 && r_shadow_texture3d.integer && r_shadow_attenuation3dtexture) r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_VERTEX3DATTEN; else if (r_textureunits.integer >= 3 && vid.texunits >= 3) r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_VERTEX2D1DATTEN; else if (r_textureunits.integer >= 2 && vid.texunits >= 2) r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_VERTEX2DATTEN; else r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_VERTEX; break; } CHECKGLERROR #if 0 qglGetIntegerv(GL_DRAW_BUFFER, &drawbuffer);CHECKGLERROR qglGetIntegerv(GL_READ_BUFFER, &readbuffer);CHECKGLERROR r_shadow_drawbuffer = drawbuffer; r_shadow_readbuffer = readbuffer; #endif r_shadow_cullface_front = r_refdef.view.cullface_front; r_shadow_cullface_back = r_refdef.view.cullface_back; } void R_Shadow_RenderMode_ActiveLight(const rtlight_t *rtlight) { rsurface.rtlight = rtlight; } void R_Shadow_RenderMode_Reset(void) { R_Mesh_ResetRenderTargets(); R_SetViewport(&r_refdef.view.viewport); GL_Scissor(r_shadow_lightscissor[0], r_shadow_lightscissor[1], r_shadow_lightscissor[2], r_shadow_lightscissor[3]); R_Mesh_ResetTextureState(); // R_Mesh_PrepareVertices_Position(0, resetvertexposition, NULL); GL_DepthRange(0, 1); GL_DepthTest(true); GL_DepthMask(false); GL_DepthFunc(GL_LEQUAL); GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);CHECKGLERROR r_refdef.view.cullface_front = r_shadow_cullface_front; r_refdef.view.cullface_back = r_shadow_cullface_back; GL_CullFace(r_refdef.view.cullface_back); GL_Color(1, 1, 1, 1); GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1); GL_BlendFunc(GL_ONE, GL_ZERO); R_SetupShader_Generic(NULL, NULL, GL_MODULATE, 1); r_shadow_usingshadowmap2d = false; r_shadow_usingshadowmaportho = false; R_SetStencil(false, 255, GL_KEEP, GL_KEEP, GL_KEEP, GL_ALWAYS, 128, 255); } void R_Shadow_ClearStencil(void) { GL_Clear(GL_STENCIL_BUFFER_BIT, NULL, 1.0f, 128); r_refdef.stats.lights_clears++; } void R_Shadow_RenderMode_StencilShadowVolumes(qboolean zpass) { r_shadow_rendermode_t mode = zpass ? r_shadow_shadowingrendermode_zpass : r_shadow_shadowingrendermode_zfail; if (r_shadow_rendermode == mode) return; R_Shadow_RenderMode_Reset(); GL_DepthFunc(GL_LESS); GL_ColorMask(0, 0, 0, 0); GL_PolygonOffset(r_refdef.shadowpolygonfactor, r_refdef.shadowpolygonoffset);CHECKGLERROR GL_CullFace(GL_NONE); R_SetupShader_DepthOrShadow(); r_shadow_rendermode = mode; switch(mode) { default: break; case R_SHADOW_RENDERMODE_ZPASS_STENCILTWOSIDE: case R_SHADOW_RENDERMODE_ZPASS_SEPARATESTENCIL: R_SetStencilSeparate(true, 255, GL_KEEP, GL_KEEP, GL_INCR, GL_KEEP, GL_KEEP, GL_DECR, GL_ALWAYS, GL_ALWAYS, 128, 255); break; case R_SHADOW_RENDERMODE_ZFAIL_STENCILTWOSIDE: case R_SHADOW_RENDERMODE_ZFAIL_SEPARATESTENCIL: R_SetStencilSeparate(true, 255, GL_KEEP, GL_INCR, GL_KEEP, GL_KEEP, GL_DECR, GL_KEEP, GL_ALWAYS, GL_ALWAYS, 128, 255); break; } } static void R_Shadow_MakeVSDCT(void) { // maps to a 2x3 texture rectangle with normalized coordinates // +- // XX // YY // ZZ // stores abs(dir.xy), offset.xy/2.5 unsigned char data[4*6] = { 255, 0, 0x33, 0x33, // +X: <1, 0>, <0.5, 0.5> 255, 0, 0x99, 0x33, // -X: <1, 0>, <1.5, 0.5> 0, 255, 0x33, 0x99, // +Y: <0, 1>, <0.5, 1.5> 0, 255, 0x99, 0x99, // -Y: <0, 1>, <1.5, 1.5> 0, 0, 0x33, 0xFF, // +Z: <0, 0>, <0.5, 2.5> 0, 0, 0x99, 0xFF, // -Z: <0, 0>, <1.5, 2.5> }; r_shadow_shadowmapvsdcttexture = R_LoadTextureCubeMap(r_shadow_texturepool, "shadowmapvsdct", 1, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_CLAMP | TEXF_ALPHA, -1, NULL); } static void R_Shadow_MakeShadowMap(int side, int size) { switch (r_shadow_shadowmode) { case R_SHADOW_SHADOWMODE_SHADOWMAP2D: if (r_shadow_shadowmap2dtexture) return; r_shadow_shadowmap2dtexture = R_LoadTextureShadowMap2D(r_shadow_texturepool, "shadowmap", size*2, size*(vid.support.arb_texture_non_power_of_two ? 3 : 4), r_shadow_shadowmapdepthbits, r_shadow_shadowmapsampler); r_shadow_shadowmap2dcolortexture = NULL; switch(vid.renderpath) { #ifdef SUPPORTD3D case RENDERPATH_D3D9: r_shadow_shadowmap2dcolortexture = R_LoadTexture2D(r_shadow_texturepool, "shadowmaprendertarget", size*2, size*(vid.support.arb_texture_non_power_of_two ? 3 : 4), NULL, TEXTYPE_BGRA, TEXF_RENDERTARGET | TEXF_FORCENEAREST | TEXF_CLAMP | TEXF_ALPHA, -1, NULL); r_shadow_fbo2d = R_Mesh_CreateFramebufferObject(r_shadow_shadowmap2dtexture, r_shadow_shadowmap2dcolortexture, NULL, NULL, NULL); break; #endif default: r_shadow_fbo2d = R_Mesh_CreateFramebufferObject(r_shadow_shadowmap2dtexture, NULL, NULL, NULL, NULL); break; } break; default: return; } // render depth into the fbo, do not render color at all // validate the fbo now if (qglDrawBuffer) { int status; qglDrawBuffer(GL_NONE);CHECKGLERROR qglReadBuffer(GL_NONE);CHECKGLERROR status = qglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);CHECKGLERROR if (status != GL_FRAMEBUFFER_COMPLETE_EXT && (r_shadow_shadowmapping.integer || r_shadow_deferred.integer)) { Con_Printf("R_Shadow_MakeShadowMap: glCheckFramebufferStatusEXT returned %i\n", status); Cvar_SetValueQuick(&r_shadow_shadowmapping, 0); Cvar_SetValueQuick(&r_shadow_deferred, 0); } } } void R_Shadow_RenderMode_ShadowMap(int side, int clear, int size) { float nearclip, farclip, bias; r_viewport_t viewport; int flipped; GLuint fbo = 0; float clearcolor[4]; nearclip = r_shadow_shadowmapping_nearclip.value / rsurface.rtlight->radius; farclip = 1.0f; bias = r_shadow_shadowmapping_bias.value * nearclip * (1024.0f / size);// * rsurface.rtlight->radius; r_shadow_shadowmap_parameters[1] = -nearclip * farclip / (farclip - nearclip) - 0.5f * bias; r_shadow_shadowmap_parameters[3] = 0.5f + 0.5f * (farclip + nearclip) / (farclip - nearclip); r_shadow_shadowmapside = side; r_shadow_shadowmapsize = size; r_shadow_shadowmap_parameters[0] = 0.5f * (size - r_shadow_shadowmapborder); r_shadow_shadowmap_parameters[2] = r_shadow_shadowmapvsdct ? 2.5f*size : size; R_Viewport_InitRectSideView(&viewport, &rsurface.rtlight->matrix_lighttoworld, side, size, r_shadow_shadowmapborder, nearclip, farclip, NULL); if (r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAP2D) goto init_done; // complex unrolled cube approach (more flexible) if (r_shadow_shadowmapvsdct && !r_shadow_shadowmapvsdcttexture) R_Shadow_MakeVSDCT(); if (!r_shadow_shadowmap2dtexture) R_Shadow_MakeShadowMap(side, r_shadow_shadowmapmaxsize); if (r_shadow_shadowmap2dtexture) fbo = r_shadow_fbo2d; r_shadow_shadowmap_texturescale[0] = 1.0f / R_TextureWidth(r_shadow_shadowmap2dtexture); r_shadow_shadowmap_texturescale[1] = 1.0f / R_TextureHeight(r_shadow_shadowmap2dtexture); r_shadow_rendermode = R_SHADOW_RENDERMODE_SHADOWMAP2D; R_Mesh_ResetTextureState(); R_Mesh_ResetRenderTargets(); R_Shadow_RenderMode_Reset(); if (fbo) { R_Mesh_SetRenderTargets(fbo, r_shadow_shadowmap2dtexture, r_shadow_shadowmap2dcolortexture, NULL, NULL, NULL); R_SetupShader_DepthOrShadow(); } else R_SetupShader_ShowDepth(); GL_PolygonOffset(r_shadow_shadowmapping_polygonfactor.value, r_shadow_shadowmapping_polygonoffset.value); GL_DepthMask(true); GL_DepthTest(true); init_done: R_SetViewport(&viewport); flipped = (side & 1) ^ (side >> 2); r_refdef.view.cullface_front = flipped ? r_shadow_cullface_back : r_shadow_cullface_front; r_refdef.view.cullface_back = flipped ? r_shadow_cullface_front : r_shadow_cullface_back; switch(vid.renderpath) { case RENDERPATH_GL11: case RENDERPATH_GL13: case RENDERPATH_GL20: case RENDERPATH_CGGL: GL_CullFace(r_refdef.view.cullface_back); // OpenGL lets us scissor larger than the viewport, so go ahead and clear all views at once if ((clear & ((2 << side) - 1)) == (1 << side)) // only clear if the side is the first in the mask { // get tightest scissor rectangle that encloses all viewports in the clear mask int x1 = clear & 0x15 ? 0 : size; int x2 = clear & 0x2A ? 2 * size : size; int y1 = clear & 0x03 ? 0 : (clear & 0xC ? size : 2 * size); int y2 = clear & 0x30 ? 3 * size : (clear & 0xC ? 2 * size : size); GL_Scissor(x1, y1, x2 - x1, y2 - y1); GL_Clear(GL_DEPTH_BUFFER_BIT, NULL, 1.0f, 0); } GL_Scissor(viewport.x, viewport.y, viewport.width, viewport.height); break; case RENDERPATH_D3D9: Vector4Set(clearcolor, 1,1,1,1); // completely different meaning than in OpenGL path r_shadow_shadowmap_parameters[1] = 0; r_shadow_shadowmap_parameters[3] = -bias; // we invert the cull mode because we flip the projection matrix // NOTE: this actually does nothing because the DrawShadowMap code sets it to doublesided... GL_CullFace(r_refdef.view.cullface_front); // D3D considers it an error to use a scissor larger than the viewport... clear just this view GL_Scissor(viewport.x, viewport.y, viewport.width, viewport.height); if (r_shadow_shadowmapsampler) { GL_ColorMask(0,0,0,0); if (clear) GL_Clear(GL_DEPTH_BUFFER_BIT, clearcolor, 1.0f, 0); } else { GL_ColorMask(1,1,1,1); if (clear) GL_Clear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT, clearcolor, 1.0f, 0); } break; case RENDERPATH_D3D10: case RENDERPATH_D3D11: // D3D considers it an error to use a scissor larger than the viewport... clear just this view GL_Scissor(viewport.x, viewport.y, viewport.width, viewport.height); GL_ColorMask(0,0,0,0); if (clear) GL_Clear(GL_DEPTH_BUFFER_BIT, NULL, 1.0f, 0); break; } } void R_Shadow_RenderMode_Lighting(qboolean stenciltest, qboolean transparent, qboolean shadowmapping) { R_Mesh_ResetTextureState(); R_Mesh_ResetRenderTargets(); if (transparent) { r_shadow_lightscissor[0] = r_refdef.view.viewport.x; r_shadow_lightscissor[1] = r_refdef.view.viewport.y; r_shadow_lightscissor[2] = r_refdef.view.viewport.width; r_shadow_lightscissor[3] = r_refdef.view.viewport.height; } R_Shadow_RenderMode_Reset(); GL_BlendFunc(GL_SRC_ALPHA, GL_ONE); if (!transparent) GL_DepthFunc(GL_EQUAL); // do global setup needed for the chosen lighting mode if (r_shadow_rendermode == R_SHADOW_RENDERMODE_LIGHT_GLSL) GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 0); r_shadow_usingshadowmap2d = shadowmapping; r_shadow_rendermode = r_shadow_lightingrendermode; // only draw light where this geometry was already rendered AND the // stencil is 128 (values other than this mean shadow) if (stenciltest) R_SetStencil(true, 255, GL_KEEP, GL_KEEP, GL_KEEP, GL_EQUAL, 128, 255); else R_SetStencil(false, 255, GL_KEEP, GL_KEEP, GL_KEEP, GL_ALWAYS, 128, 255); } static const unsigned short bboxelements[36] = { 5, 1, 3, 5, 3, 7, 6, 2, 0, 6, 0, 4, 7, 3, 2, 7, 2, 6, 4, 0, 1, 4, 1, 5, 4, 5, 7, 4, 7, 6, 1, 0, 2, 1, 2, 3, }; static const float bboxpoints[8][3] = { {-1,-1,-1}, { 1,-1,-1}, {-1, 1,-1}, { 1, 1,-1}, {-1,-1, 1}, { 1,-1, 1}, {-1, 1, 1}, { 1, 1, 1}, }; void R_Shadow_RenderMode_DrawDeferredLight(qboolean stenciltest, qboolean shadowmapping) { int i; float vertex3f[8*3]; const matrix4x4_t *matrix = &rsurface.rtlight->matrix_lighttoworld; // do global setup needed for the chosen lighting mode R_Shadow_RenderMode_Reset(); r_shadow_rendermode = r_shadow_lightingrendermode; R_EntityMatrix(&identitymatrix); GL_BlendFunc(GL_SRC_ALPHA, GL_ONE); // only draw light where this geometry was already rendered AND the // stencil is 128 (values other than this mean shadow) R_SetStencil(stenciltest, 255, GL_KEEP, GL_KEEP, GL_KEEP, GL_EQUAL, 128, 255); R_Mesh_SetRenderTargets(r_shadow_prepasslightingfbo, r_shadow_prepassgeometrydepthtexture, r_shadow_prepasslightingdiffusetexture, r_shadow_prepasslightingspeculartexture, NULL, NULL); r_shadow_usingshadowmap2d = shadowmapping; // render the lighting R_SetupShader_DeferredLight(rsurface.rtlight); for (i = 0;i < 8;i++) Matrix4x4_Transform(matrix, bboxpoints[i], vertex3f + i*3); GL_ColorMask(1,1,1,1); GL_DepthMask(false); GL_DepthRange(0, 1); GL_PolygonOffset(0, 0); GL_DepthTest(true); GL_DepthFunc(GL_GREATER); GL_CullFace(r_refdef.view.cullface_back); R_Mesh_PrepareVertices_Position_Arrays(8, vertex3f); R_Mesh_Draw(0, 8, 0, 12, NULL, NULL, 0, bboxelements, NULL, 0); } void R_Shadow_RenderMode_VisibleShadowVolumes(void) { R_Shadow_RenderMode_Reset(); GL_BlendFunc(GL_ONE, GL_ONE); GL_DepthRange(0, 1); GL_DepthTest(r_showshadowvolumes.integer < 2); GL_Color(0.0, 0.0125 * r_refdef.view.colorscale, 0.1 * r_refdef.view.colorscale, 1); GL_PolygonOffset(r_refdef.shadowpolygonfactor, r_refdef.shadowpolygonoffset);CHECKGLERROR GL_CullFace(GL_NONE); r_shadow_rendermode = R_SHADOW_RENDERMODE_VISIBLEVOLUMES; } void R_Shadow_RenderMode_VisibleLighting(qboolean stenciltest, qboolean transparent) { R_Shadow_RenderMode_Reset(); GL_BlendFunc(GL_ONE, GL_ONE); GL_DepthRange(0, 1); GL_DepthTest(r_showlighting.integer < 2); GL_Color(0.1 * r_refdef.view.colorscale, 0.0125 * r_refdef.view.colorscale, 0, 1); if (!transparent) GL_DepthFunc(GL_EQUAL); R_SetStencil(stenciltest, 255, GL_KEEP, GL_KEEP, GL_KEEP, GL_EQUAL, 128, 255); r_shadow_rendermode = R_SHADOW_RENDERMODE_VISIBLELIGHTING; } void R_Shadow_RenderMode_End(void) { R_Shadow_RenderMode_Reset(); R_Shadow_RenderMode_ActiveLight(NULL); GL_DepthMask(true); GL_Scissor(r_refdef.view.viewport.x, r_refdef.view.viewport.y, r_refdef.view.viewport.width, r_refdef.view.viewport.height); r_shadow_rendermode = R_SHADOW_RENDERMODE_NONE; } int bboxedges[12][2] = { // top {0, 1}, // +X {0, 2}, // +Y {1, 3}, // Y, +X {2, 3}, // X, +Y // bottom {4, 5}, // +X {4, 6}, // +Y {5, 7}, // Y, +X {6, 7}, // X, +Y // verticals {0, 4}, // +Z {1, 5}, // X, +Z {2, 6}, // Y, +Z {3, 7}, // XY, +Z }; qboolean R_Shadow_ScissorForBBox(const float *mins, const float *maxs) { if (!r_shadow_scissor.integer) { r_shadow_lightscissor[0] = r_refdef.view.viewport.x; r_shadow_lightscissor[1] = r_refdef.view.viewport.y; r_shadow_lightscissor[2] = r_refdef.view.viewport.width; r_shadow_lightscissor[3] = r_refdef.view.viewport.height; return false; } if(R_ScissorForBBox(mins, maxs, r_shadow_lightscissor)) return true; // invisible if(r_shadow_lightscissor[0] != r_refdef.view.viewport.x || r_shadow_lightscissor[1] != r_refdef.view.viewport.y || r_shadow_lightscissor[2] != r_refdef.view.viewport.width || r_shadow_lightscissor[3] != r_refdef.view.viewport.height) r_refdef.stats.lights_scissored++; return false; } static void R_Shadow_RenderLighting_Light_Vertex_Shading(int firstvertex, int numverts, const float *diffusecolor, const float *ambientcolor) { int i; const float *vertex3f; const float *normal3f; float *color4f; float dist, dot, distintensity, shadeintensity, v[3], n[3]; switch (r_shadow_rendermode) { case R_SHADOW_RENDERMODE_LIGHT_VERTEX3DATTEN: case R_SHADOW_RENDERMODE_LIGHT_VERTEX2D1DATTEN: if (VectorLength2(diffusecolor) > 0) { for (i = 0, vertex3f = rsurface.batchvertex3f + 3*firstvertex, normal3f = rsurface.batchnormal3f + 3*firstvertex, color4f = rsurface.array_passcolor4f + 4 * firstvertex;i < numverts;i++, vertex3f += 3, normal3f += 3, color4f += 4) { Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v); Matrix4x4_Transform3x3(&rsurface.entitytolight, normal3f, n); if ((dot = DotProduct(n, v)) < 0) { shadeintensity = -dot / sqrt(VectorLength2(v) * VectorLength2(n)); VectorMA(ambientcolor, shadeintensity, diffusecolor, color4f); } else VectorCopy(ambientcolor, color4f); if (r_refdef.fogenabled) { float f; f = RSurf_FogVertex(vertex3f); VectorScale(color4f, f, color4f); } color4f[3] = 1; } } else { for (i = 0, vertex3f = rsurface.batchvertex3f + 3*firstvertex, color4f = rsurface.array_passcolor4f + 4 * firstvertex;i < numverts;i++, vertex3f += 3, color4f += 4) { VectorCopy(ambientcolor, color4f); if (r_refdef.fogenabled) { float f; Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v); f = RSurf_FogVertex(vertex3f); VectorScale(color4f + 4*i, f, color4f); } color4f[3] = 1; } } break; case R_SHADOW_RENDERMODE_LIGHT_VERTEX2DATTEN: if (VectorLength2(diffusecolor) > 0) { for (i = 0, vertex3f = rsurface.batchvertex3f + 3*firstvertex, normal3f = rsurface.batchnormal3f + 3*firstvertex, color4f = rsurface.array_passcolor4f + 4 * firstvertex;i < numverts;i++, vertex3f += 3, normal3f += 3, color4f += 4) { Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v); if ((dist = fabs(v[2])) < 1 && (distintensity = r_shadow_attentable[(int)(dist * ATTENTABLESIZE)])) { Matrix4x4_Transform3x3(&rsurface.entitytolight, normal3f, n); if ((dot = DotProduct(n, v)) < 0) { shadeintensity = -dot / sqrt(VectorLength2(v) * VectorLength2(n)); color4f[0] = (ambientcolor[0] + shadeintensity * diffusecolor[0]) * distintensity; color4f[1] = (ambientcolor[1] + shadeintensity * diffusecolor[1]) * distintensity; color4f[2] = (ambientcolor[2] + shadeintensity * diffusecolor[2]) * distintensity; } else { color4f[0] = ambientcolor[0] * distintensity; color4f[1] = ambientcolor[1] * distintensity; color4f[2] = ambientcolor[2] * distintensity; } if (r_refdef.fogenabled) { float f; f = RSurf_FogVertex(vertex3f); VectorScale(color4f, f, color4f); } } else VectorClear(color4f); color4f[3] = 1; } } else { for (i = 0, vertex3f = rsurface.batchvertex3f + 3*firstvertex, color4f = rsurface.array_passcolor4f + 4 * firstvertex;i < numverts;i++, vertex3f += 3, color4f += 4) { Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v); if ((dist = fabs(v[2])) < 1 && (distintensity = r_shadow_attentable[(int)(dist * ATTENTABLESIZE)])) { color4f[0] = ambientcolor[0] * distintensity; color4f[1] = ambientcolor[1] * distintensity; color4f[2] = ambientcolor[2] * distintensity; if (r_refdef.fogenabled) { float f; f = RSurf_FogVertex(vertex3f); VectorScale(color4f, f, color4f); } } else VectorClear(color4f); color4f[3] = 1; } } break; case R_SHADOW_RENDERMODE_LIGHT_VERTEX: if (VectorLength2(diffusecolor) > 0) { for (i = 0, vertex3f = rsurface.batchvertex3f + 3*firstvertex, normal3f = rsurface.batchnormal3f + 3*firstvertex, color4f = rsurface.array_passcolor4f + 4 * firstvertex;i < numverts;i++, vertex3f += 3, normal3f += 3, color4f += 4) { Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v); if ((dist = VectorLength(v)) < 1 && (distintensity = r_shadow_attentable[(int)(dist * ATTENTABLESIZE)])) { distintensity = (1 - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist); Matrix4x4_Transform3x3(&rsurface.entitytolight, normal3f, n); if ((dot = DotProduct(n, v)) < 0) { shadeintensity = -dot / sqrt(VectorLength2(v) * VectorLength2(n)); color4f[0] = (ambientcolor[0] + shadeintensity * diffusecolor[0]) * distintensity; color4f[1] = (ambientcolor[1] + shadeintensity * diffusecolor[1]) * distintensity; color4f[2] = (ambientcolor[2] + shadeintensity * diffusecolor[2]) * distintensity; } else { color4f[0] = ambientcolor[0] * distintensity; color4f[1] = ambientcolor[1] * distintensity; color4f[2] = ambientcolor[2] * distintensity; } if (r_refdef.fogenabled) { float f; f = RSurf_FogVertex(vertex3f); VectorScale(color4f, f, color4f); } } else VectorClear(color4f); color4f[3] = 1; } } else { for (i = 0, vertex3f = rsurface.batchvertex3f + 3*firstvertex, color4f = rsurface.array_passcolor4f + 4 * firstvertex;i < numverts;i++, vertex3f += 3, color4f += 4) { Matrix4x4_Transform(&rsurface.entitytolight, vertex3f, v); if ((dist = VectorLength(v)) < 1 && (distintensity = r_shadow_attentable[(int)(dist * ATTENTABLESIZE)])) { distintensity = (1 - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist); color4f[0] = ambientcolor[0] * distintensity; color4f[1] = ambientcolor[1] * distintensity; color4f[2] = ambientcolor[2] * distintensity; if (r_refdef.fogenabled) { float f; f = RSurf_FogVertex(vertex3f); VectorScale(color4f, f, color4f); } } else VectorClear(color4f); color4f[3] = 1; } } break; default: break; } } static void R_Shadow_RenderLighting_VisibleLighting(int texturenumsurfaces, const msurface_t **texturesurfacelist) { // used to display how many times a surface is lit for level design purposes RSurf_PrepareVerticesForBatch(BATCHNEED_ARRAY_VERTEX | BATCHNEED_NOGAPS, texturenumsurfaces, texturesurfacelist); R_Mesh_PrepareVertices_Generic_Arrays(rsurface.batchnumvertices, rsurface.batchvertex3f, NULL, NULL); RSurf_DrawBatch(); } static void R_Shadow_RenderLighting_Light_GLSL(int texturenumsurfaces, const msurface_t **texturesurfacelist, const vec3_t lightcolor, float ambientscale, float diffusescale, float specularscale) { // ARB2 GLSL shader path (GFFX5200, Radeon 9500) R_SetupShader_Surface(lightcolor, false, ambientscale, diffusescale, specularscale, RSURFPASS_RTLIGHT, texturenumsurfaces, texturesurfacelist, NULL); if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST) GL_DepthFunc(GL_EQUAL); RSurf_DrawBatch(); if (rsurface.texture->currentmaterialflags & MATERIALFLAG_ALPHATEST) GL_DepthFunc(GL_LEQUAL); } static void R_Shadow_RenderLighting_Light_Vertex_Pass(int firstvertex, int numvertices, int numtriangles, const int *element3i, vec3_t diffusecolor2, vec3_t ambientcolor2) { int renders; int i; int stop; int newfirstvertex; int newlastvertex; int newnumtriangles; int *newe; const int *e; float *c; int maxtriangles = 4096; static int newelements[4096*3]; R_Shadow_RenderLighting_Light_Vertex_Shading(firstvertex, numvertices, diffusecolor2, ambientcolor2); for (renders = 0;renders < 4;renders++) { stop = true; newfirstvertex = 0; newlastvertex = 0; newnumtriangles = 0; newe = newelements; // due to low fillrate on the cards this vertex lighting path is // designed for, we manually cull all triangles that do not // contain a lit vertex // this builds batches of triangles from multiple surfaces and // renders them at once for (i = 0, e = element3i;i < numtriangles;i++, e += 3) { if (VectorLength2(rsurface.array_passcolor4f + e[0] * 4) + VectorLength2(rsurface.array_passcolor4f + e[1] * 4) + VectorLength2(rsurface.array_passcolor4f + e[2] * 4) >= 0.01) { if (newnumtriangles) { newfirstvertex = min(newfirstvertex, e[0]); newlastvertex = max(newlastvertex, e[0]); } else { newfirstvertex = e[0]; newlastvertex = e[0]; } newfirstvertex = min(newfirstvertex, e[1]); newlastvertex = max(newlastvertex, e[1]); newfirstvertex = min(newfirstvertex, e[2]); newlastvertex = max(newlastvertex, e[2]); newe[0] = e[0]; newe[1] = e[1]; newe[2] = e[2]; newnumtriangles++; newe += 3; if (newnumtriangles >= maxtriangles) { R_Mesh_Draw(newfirstvertex, newlastvertex - newfirstvertex + 1, 0, newnumtriangles, newelements, NULL, 0, NULL, NULL, 0); newnumtriangles = 0; newe = newelements; stop = false; } } } if (newnumtriangles >= 1) { R_Mesh_Draw(newfirstvertex, newlastvertex - newfirstvertex + 1, 0, newnumtriangles, newelements, NULL, 0, NULL, NULL, 0); stop = false; } // if we couldn't find any lit triangles, exit early if (stop) break; // now reduce the intensity for the next overbright pass // we have to clamp to 0 here incase the drivers have improper // handling of negative colors // (some old drivers even have improper handling of >1 color) stop = true; for (i = 0, c = rsurface.array_passcolor4f + 4 * firstvertex;i < numvertices;i++, c += 4) { if (c[0] > 1 || c[1] > 1 || c[2] > 1) { c[0] = max(0, c[0] - 1); c[1] = max(0, c[1] - 1); c[2] = max(0, c[2] - 1); stop = false; } else VectorClear(c); } // another check... if (stop) break; } } static void R_Shadow_RenderLighting_Light_Vertex(int texturenumsurfaces, const msurface_t **texturesurfacelist, const vec3_t lightcolor, float ambientscale, float diffusescale) { // OpenGL 1.1 path (anything) float ambientcolorbase[3], diffusecolorbase[3]; float ambientcolorpants[3], diffusecolorpants[3]; float ambientcolorshirt[3], diffusecolorshirt[3]; const float *surfacecolor = rsurface.texture->dlightcolor; const float *surfacepants = rsurface.colormap_pantscolor; const float *surfaceshirt = rsurface.colormap_shirtcolor; rtexture_t *basetexture = rsurface.texture->basetexture; rtexture_t *pantstexture = rsurface.texture->pantstexture; rtexture_t *shirttexture = rsurface.texture->shirttexture; qboolean dopants = pantstexture && VectorLength2(surfacepants) >= (1.0f / 1048576.0f); qboolean doshirt = shirttexture && VectorLength2(surfaceshirt) >= (1.0f / 1048576.0f); ambientscale *= 2 * r_refdef.view.colorscale; diffusescale *= 2 * r_refdef.view.colorscale; ambientcolorbase[0] = lightcolor[0] * ambientscale * surfacecolor[0];ambientcolorbase[1] = lightcolor[1] * ambientscale * surfacecolor[1];ambientcolorbase[2] = lightcolor[2] * ambientscale * surfacecolor[2]; diffusecolorbase[0] = lightcolor[0] * diffusescale * surfacecolor[0];diffusecolorbase[1] = lightcolor[1] * diffusescale * surfacecolor[1];diffusecolorbase[2] = lightcolor[2] * diffusescale * surfacecolor[2]; ambientcolorpants[0] = ambientcolorbase[0] * surfacepants[0];ambientcolorpants[1] = ambientcolorbase[1] * surfacepants[1];ambientcolorpants[2] = ambientcolorbase[2] * surfacepants[2]; diffusecolorpants[0] = diffusecolorbase[0] * surfacepants[0];diffusecolorpants[1] = diffusecolorbase[1] * surfacepants[1];diffusecolorpants[2] = diffusecolorbase[2] * surfacepants[2]; ambientcolorshirt[0] = ambientcolorbase[0] * surfaceshirt[0];ambientcolorshirt[1] = ambientcolorbase[1] * surfaceshirt[1];ambientcolorshirt[2] = ambientcolorbase[2] * surfaceshirt[2]; diffusecolorshirt[0] = diffusecolorbase[0] * surfaceshirt[0];diffusecolorshirt[1] = diffusecolorbase[1] * surfaceshirt[1];diffusecolorshirt[2] = diffusecolorbase[2] * surfaceshirt[2]; RSurf_PrepareVerticesForBatch(BATCHNEED_ARRAY_VERTEX | (diffusescale > 0 ? BATCHNEED_ARRAY_NORMAL : 0) | BATCHNEED_ARRAY_TEXCOORD, texturenumsurfaces, texturesurfacelist); R_Mesh_VertexPointer(3, GL_FLOAT, sizeof(float[3]), rsurface.batchvertex3f, rsurface.batchvertex3f_vertexbuffer, rsurface.batchvertex3f_bufferoffset); R_Mesh_ColorPointer(4, GL_FLOAT, sizeof(float[4]), rsurface.array_passcolor4f, 0, 0); R_Mesh_TexCoordPointer(0, 2, GL_FLOAT, sizeof(float[2]), rsurface.batchtexcoordtexture2f, rsurface.batchtexcoordtexture2f_vertexbuffer, rsurface.batchtexcoordtexture2f_bufferoffset); R_Mesh_TexBind(0, basetexture); R_Mesh_TexMatrix(0, &rsurface.texture->currenttexmatrix); R_Mesh_TexCombine(0, GL_MODULATE, GL_MODULATE, 1, 1); switch(r_shadow_rendermode) { case R_SHADOW_RENDERMODE_LIGHT_VERTEX3DATTEN: R_Mesh_TexBind(1, r_shadow_attenuation3dtexture); R_Mesh_TexMatrix(1, &rsurface.entitytoattenuationxyz); R_Mesh_TexCombine(1, GL_MODULATE, GL_MODULATE, 1, 1); R_Mesh_TexCoordPointer(1, 3, GL_FLOAT, sizeof(float[3]), rsurface.batchvertex3f, rsurface.batchvertex3f_vertexbuffer, rsurface.batchvertex3f_bufferoffset); break; case R_SHADOW_RENDERMODE_LIGHT_VERTEX2D1DATTEN: R_Mesh_TexBind(2, r_shadow_attenuation2dtexture); R_Mesh_TexMatrix(2, &rsurface.entitytoattenuationz); R_Mesh_TexCombine(2, GL_MODULATE, GL_MODULATE, 1, 1); R_Mesh_TexCoordPointer(2, 3, GL_FLOAT, sizeof(float[3]), rsurface.batchvertex3f, rsurface.batchvertex3f_vertexbuffer, rsurface.batchvertex3f_bufferoffset); // fall through case R_SHADOW_RENDERMODE_LIGHT_VERTEX2DATTEN: R_Mesh_TexBind(1, r_shadow_attenuation2dtexture); R_Mesh_TexMatrix(1, &rsurface.entitytoattenuationxyz); R_Mesh_TexCombine(1, GL_MODULATE, GL_MODULATE, 1, 1); R_Mesh_TexCoordPointer(1, 3, GL_FLOAT, sizeof(float[3]), rsurface.batchvertex3f, rsurface.batchvertex3f_vertexbuffer, rsurface.batchvertex3f_bufferoffset); break; case R_SHADOW_RENDERMODE_LIGHT_VERTEX: break; default: break; } //R_Mesh_TexBind(0, basetexture); R_Shadow_RenderLighting_Light_Vertex_Pass(rsurface.batchfirstvertex, rsurface.batchnumvertices, rsurface.batchnumtriangles, rsurface.batchelement3i + 3*rsurface.batchfirsttriangle, diffusecolorbase, ambientcolorbase); if (dopants) { R_Mesh_TexBind(0, pantstexture); R_Shadow_RenderLighting_Light_Vertex_Pass(rsurface.batchfirstvertex, rsurface.batchnumvertices, rsurface.batchnumtriangles, rsurface.batchelement3i + 3*rsurface.batchfirsttriangle, diffusecolorpants, ambientcolorpants); } if (doshirt) { R_Mesh_TexBind(0, shirttexture); R_Shadow_RenderLighting_Light_Vertex_Pass(rsurface.batchfirstvertex, rsurface.batchnumvertices, rsurface.batchnumtriangles, rsurface.batchelement3i + 3*rsurface.batchfirsttriangle, diffusecolorshirt, ambientcolorshirt); } } extern cvar_t gl_lightmaps; void R_Shadow_RenderLighting(int texturenumsurfaces, const msurface_t **texturesurfacelist) { float ambientscale, diffusescale, specularscale; qboolean negated; float lightcolor[3]; VectorCopy(rsurface.rtlight->currentcolor, lightcolor); ambientscale = rsurface.rtlight->ambientscale; diffusescale = rsurface.rtlight->diffusescale; specularscale = rsurface.rtlight->specularscale * rsurface.texture->specularscale; if (!r_shadow_usenormalmap.integer) { ambientscale += 1.0f * diffusescale; diffusescale = 0; specularscale = 0; } if ((ambientscale + diffusescale) * VectorLength2(lightcolor) + specularscale * VectorLength2(lightcolor) < (1.0f / 1048576.0f)) return; negated = (lightcolor[0] + lightcolor[1] + lightcolor[2] < 0) && vid.support.ext_blend_subtract; if(negated) { VectorNegate(lightcolor, lightcolor); switch(vid.renderpath) { case RENDERPATH_GL11: case RENDERPATH_GL13: case RENDERPATH_GL20: case RENDERPATH_CGGL: qglBlendEquationEXT(GL_FUNC_REVERSE_SUBTRACT_EXT); break; case RENDERPATH_D3D9: #ifdef SUPPORTD3D IDirect3DDevice9_SetRenderState(vid_d3d9dev, D3DRS_BLENDOP, D3DBLENDOP_SUBTRACT); #endif break; case RENDERPATH_D3D10: Con_DPrintf("FIXME D3D10 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; case RENDERPATH_D3D11: Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; } } RSurf_SetupDepthAndCulling(); switch (r_shadow_rendermode) { case R_SHADOW_RENDERMODE_VISIBLELIGHTING: GL_DepthTest(!(rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST) && !r_showdisabledepthtest.integer); R_Shadow_RenderLighting_VisibleLighting(texturenumsurfaces, texturesurfacelist); break; case R_SHADOW_RENDERMODE_LIGHT_GLSL: R_Shadow_RenderLighting_Light_GLSL(texturenumsurfaces, texturesurfacelist, lightcolor, ambientscale, diffusescale, specularscale); break; case R_SHADOW_RENDERMODE_LIGHT_VERTEX3DATTEN: case R_SHADOW_RENDERMODE_LIGHT_VERTEX2D1DATTEN: case R_SHADOW_RENDERMODE_LIGHT_VERTEX2DATTEN: case R_SHADOW_RENDERMODE_LIGHT_VERTEX: R_Shadow_RenderLighting_Light_Vertex(texturenumsurfaces, texturesurfacelist, lightcolor, ambientscale, diffusescale); break; default: Con_Printf("R_Shadow_RenderLighting: unknown r_shadow_rendermode %i\n", r_shadow_rendermode); break; } if(negated) { switch(vid.renderpath) { case RENDERPATH_GL11: case RENDERPATH_GL13: case RENDERPATH_GL20: case RENDERPATH_CGGL: qglBlendEquationEXT(GL_FUNC_ADD_EXT); break; case RENDERPATH_D3D9: #ifdef SUPPORTD3D IDirect3DDevice9_SetRenderState(vid_d3d9dev, D3DRS_BLENDOP, D3DBLENDOP_ADD); #endif break; case RENDERPATH_D3D10: Con_DPrintf("FIXME D3D10 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; case RENDERPATH_D3D11: Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; } } } void R_RTLight_Update(rtlight_t *rtlight, int isstatic, matrix4x4_t *matrix, vec3_t color, int style, const char *cubemapname, int shadow, vec_t corona, vec_t coronasizescale, vec_t ambientscale, vec_t diffusescale, vec_t specularscale, int flags) { matrix4x4_t tempmatrix = *matrix; Matrix4x4_Scale(&tempmatrix, r_shadow_lightradiusscale.value, 1); // if this light has been compiled before, free the associated data R_RTLight_Uncompile(rtlight); // clear it completely to avoid any lingering data memset(rtlight, 0, sizeof(*rtlight)); // copy the properties rtlight->matrix_lighttoworld = tempmatrix; Matrix4x4_Invert_Simple(&rtlight->matrix_worldtolight, &tempmatrix); Matrix4x4_OriginFromMatrix(&tempmatrix, rtlight->shadoworigin); rtlight->radius = Matrix4x4_ScaleFromMatrix(&tempmatrix); VectorCopy(color, rtlight->color); rtlight->cubemapname[0] = 0; if (cubemapname && cubemapname[0]) strlcpy(rtlight->cubemapname, cubemapname, sizeof(rtlight->cubemapname)); rtlight->shadow = shadow; rtlight->corona = corona; rtlight->style = style; rtlight->isstatic = isstatic; rtlight->coronasizescale = coronasizescale; rtlight->ambientscale = ambientscale; rtlight->diffusescale = diffusescale; rtlight->specularscale = specularscale; rtlight->flags = flags; // compute derived data //rtlight->cullradius = rtlight->radius; //rtlight->cullradius2 = rtlight->radius * rtlight->radius; rtlight->cullmins[0] = rtlight->shadoworigin[0] - rtlight->radius; rtlight->cullmins[1] = rtlight->shadoworigin[1] - rtlight->radius; rtlight->cullmins[2] = rtlight->shadoworigin[2] - rtlight->radius; rtlight->cullmaxs[0] = rtlight->shadoworigin[0] + rtlight->radius; rtlight->cullmaxs[1] = rtlight->shadoworigin[1] + rtlight->radius; rtlight->cullmaxs[2] = rtlight->shadoworigin[2] + rtlight->radius; } // compiles rtlight geometry // (undone by R_FreeCompiledRTLight, which R_UpdateLight calls) void R_RTLight_Compile(rtlight_t *rtlight) { int i; int numsurfaces, numleafs, numleafpvsbytes, numshadowtrispvsbytes, numlighttrispvsbytes; int lighttris, shadowtris, shadowzpasstris, shadowzfailtris; entity_render_t *ent = r_refdef.scene.worldentity; dp_model_t *model = r_refdef.scene.worldmodel; unsigned char *data; shadowmesh_t *mesh; // compile the light rtlight->compiled = true; rtlight->shadowmode = rtlight->shadow ? (int)r_shadow_shadowmode : -1; rtlight->static_numleafs = 0; rtlight->static_numleafpvsbytes = 0; rtlight->static_leaflist = NULL; rtlight->static_leafpvs = NULL; rtlight->static_numsurfaces = 0; rtlight->static_surfacelist = NULL; rtlight->static_shadowmap_receivers = 0x3F; rtlight->static_shadowmap_casters = 0x3F; rtlight->cullmins[0] = rtlight->shadoworigin[0] - rtlight->radius; rtlight->cullmins[1] = rtlight->shadoworigin[1] - rtlight->radius; rtlight->cullmins[2] = rtlight->shadoworigin[2] - rtlight->radius; rtlight->cullmaxs[0] = rtlight->shadoworigin[0] + rtlight->radius; rtlight->cullmaxs[1] = rtlight->shadoworigin[1] + rtlight->radius; rtlight->cullmaxs[2] = rtlight->shadoworigin[2] + rtlight->radius; if (model && model->GetLightInfo) { // this variable must be set for the CompileShadowVolume/CompileShadowMap code r_shadow_compilingrtlight = rtlight; 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, 0, NULL); numleafpvsbytes = (model->brush.num_leafs + 7) >> 3; numshadowtrispvsbytes = ((model->brush.shadowmesh ? model->brush.shadowmesh->numtriangles : model->surfmesh.num_triangles) + 7) >> 3; numlighttrispvsbytes = (model->surfmesh.num_triangles + 7) >> 3; data = (unsigned char *)Mem_Alloc(r_main_mempool, sizeof(int) * numsurfaces + sizeof(int) * numleafs + numleafpvsbytes + numshadowtrispvsbytes + numlighttrispvsbytes); rtlight->static_numsurfaces = numsurfaces; rtlight->static_surfacelist = (int *)data;data += sizeof(int) * numsurfaces; rtlight->static_numleafs = numleafs; rtlight->static_leaflist = (int *)data;data += sizeof(int) * numleafs; rtlight->static_numleafpvsbytes = numleafpvsbytes; rtlight->static_leafpvs = (unsigned char *)data;data += numleafpvsbytes; rtlight->static_numshadowtrispvsbytes = numshadowtrispvsbytes; rtlight->static_shadowtrispvs = (unsigned char *)data;data += numshadowtrispvsbytes; rtlight->static_numlighttrispvsbytes = numlighttrispvsbytes; rtlight->static_lighttrispvs = (unsigned char *)data;data += numlighttrispvsbytes; if (rtlight->static_numsurfaces) memcpy(rtlight->static_surfacelist, r_shadow_buffer_surfacelist, rtlight->static_numsurfaces * sizeof(*rtlight->static_surfacelist)); if (rtlight->static_numleafs) memcpy(rtlight->static_leaflist, r_shadow_buffer_leaflist, rtlight->static_numleafs * sizeof(*rtlight->static_leaflist)); if (rtlight->static_numleafpvsbytes) memcpy(rtlight->static_leafpvs, r_shadow_buffer_leafpvs, rtlight->static_numleafpvsbytes); if (rtlight->static_numshadowtrispvsbytes) memcpy(rtlight->static_shadowtrispvs, r_shadow_buffer_shadowtrispvs, rtlight->static_numshadowtrispvsbytes); if (rtlight->static_numlighttrispvsbytes) memcpy(rtlight->static_lighttrispvs, r_shadow_buffer_lighttrispvs, rtlight->static_numlighttrispvsbytes); switch (rtlight->shadowmode) { case R_SHADOW_SHADOWMODE_SHADOWMAP2D: if (model->CompileShadowMap && rtlight->shadow) model->CompileShadowMap(ent, rtlight->shadoworigin, NULL, rtlight->radius, numsurfaces, r_shadow_buffer_surfacelist); break; default: if (model->CompileShadowVolume && rtlight->shadow) model->CompileShadowVolume(ent, rtlight->shadoworigin, NULL, rtlight->radius, numsurfaces, r_shadow_buffer_surfacelist); break; } // now we're done compiling the rtlight r_shadow_compilingrtlight = NULL; } // use smallest available cullradius - box radius or light radius //rtlight->cullradius = RadiusFromBoundsAndOrigin(rtlight->cullmins, rtlight->cullmaxs, rtlight->shadoworigin); //rtlight->cullradius = min(rtlight->cullradius, rtlight->radius); shadowzpasstris = 0; if (rtlight->static_meshchain_shadow_zpass) for (mesh = rtlight->static_meshchain_shadow_zpass;mesh;mesh = mesh->next) shadowzpasstris += mesh->numtriangles; shadowzfailtris = 0; if (rtlight->static_meshchain_shadow_zfail) for (mesh = rtlight->static_meshchain_shadow_zfail;mesh;mesh = mesh->next) shadowzfailtris += mesh->numtriangles; lighttris = 0; if (rtlight->static_numlighttrispvsbytes) for (i = 0;i < rtlight->static_numlighttrispvsbytes*8;i++) if (CHECKPVSBIT(rtlight->static_lighttrispvs, i)) lighttris++; shadowtris = 0; if (rtlight->static_numlighttrispvsbytes) for (i = 0;i < rtlight->static_numshadowtrispvsbytes*8;i++) if (CHECKPVSBIT(rtlight->static_shadowtrispvs, i)) shadowtris++; if (developer_extra.integer) Con_DPrintf("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); } void R_RTLight_Uncompile(rtlight_t *rtlight) { if (rtlight->compiled) { if (rtlight->static_meshchain_shadow_zpass) Mod_ShadowMesh_Free(rtlight->static_meshchain_shadow_zpass); rtlight->static_meshchain_shadow_zpass = NULL; if (rtlight->static_meshchain_shadow_zfail) Mod_ShadowMesh_Free(rtlight->static_meshchain_shadow_zfail); rtlight->static_meshchain_shadow_zfail = NULL; if (rtlight->static_meshchain_shadow_shadowmap) Mod_ShadowMesh_Free(rtlight->static_meshchain_shadow_shadowmap); rtlight->static_meshchain_shadow_shadowmap = NULL; // these allocations are grouped if (rtlight->static_surfacelist) Mem_Free(rtlight->static_surfacelist); rtlight->static_numleafs = 0; rtlight->static_numleafpvsbytes = 0; rtlight->static_leaflist = NULL; rtlight->static_leafpvs = NULL; rtlight->static_numsurfaces = 0; rtlight->static_surfacelist = NULL; rtlight->static_numshadowtrispvsbytes = 0; rtlight->static_shadowtrispvs = NULL; rtlight->static_numlighttrispvsbytes = 0; rtlight->static_lighttrispvs = NULL; rtlight->compiled = false; } } void R_Shadow_UncompileWorldLights(void) { size_t lightindex; dlight_t *light; size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked for (lightindex = 0;lightindex < range;lightindex++) { light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (!light) continue; R_RTLight_Uncompile(&light->rtlight); } } void R_Shadow_ComputeShadowCasterCullingPlanes(rtlight_t *rtlight) { int i, j; mplane_t plane; // reset the count of frustum planes // see rtlight->cached_frustumplanes definition for how much this array // can hold rtlight->cached_numfrustumplanes = 0; // haven't implemented a culling path for ortho rendering if (!r_refdef.view.useperspective) { // check if the light is on screen and copy the 4 planes if it is for (i = 0;i < 4;i++) if (PlaneDiff(rtlight->shadoworigin, &r_refdef.view.frustum[i]) < -0.03125) break; if (i == 4) for (i = 0;i < 4;i++) rtlight->cached_frustumplanes[rtlight->cached_numfrustumplanes++] = r_refdef.view.frustum[i]; return; } #if 1 // generate a deformed frustum that includes the light origin, this is // used to cull shadow casting surfaces that can not possibly cast a // shadow onto the visible light-receiving surfaces, which can be a // performance gain // // if the light origin is onscreen the result will be 4 planes exactly // if the light origin is offscreen on only one axis the result will // be exactly 5 planes (split-side case) // if the light origin is offscreen on two axes the result will be // exactly 4 planes (stretched corner case) for (i = 0;i < 4;i++) { // quickly reject standard frustum planes that put the light // origin outside the frustum if (PlaneDiff(rtlight->shadoworigin, &r_refdef.view.frustum[i]) < -0.03125) continue; // copy the plane rtlight->cached_frustumplanes[rtlight->cached_numfrustumplanes++] = r_refdef.view.frustum[i]; } // if all the standard frustum planes were accepted, the light is onscreen // otherwise we need to generate some more planes below... if (rtlight->cached_numfrustumplanes < 4) { // at least one of the stock frustum planes failed, so we need to // create one or two custom planes to enclose the light origin for (i = 0;i < 4;i++) { // create a plane using the view origin and light origin, and a // single point from the frustum corner set TriangleNormal(r_refdef.view.origin, r_refdef.view.frustumcorner[i], rtlight->shadoworigin, plane.normal); VectorNormalize(plane.normal); plane.dist = DotProduct(r_refdef.view.origin, plane.normal); // see if this plane is backwards and flip it if so for (j = 0;j < 4;j++) if (j != i && DotProduct(r_refdef.view.frustumcorner[j], plane.normal) - plane.dist < -0.03125) break; if (j < 4) { VectorNegate(plane.normal, plane.normal); plane.dist *= -1; // flipped plane, test again to see if it is now valid for (j = 0;j < 4;j++) if (j != i && DotProduct(r_refdef.view.frustumcorner[j], plane.normal) - plane.dist < -0.03125) break; // if the plane is still not valid, then it is dividing the // frustum and has to be rejected if (j < 4) continue; } // we have created a valid plane, compute extra info PlaneClassify(&plane); // copy the plane rtlight->cached_frustumplanes[rtlight->cached_numfrustumplanes++] = plane; #if 1 // if we've found 5 frustum planes then we have constructed a // proper split-side case and do not need to keep searching for // planes to enclose the light origin if (rtlight->cached_numfrustumplanes == 5) break; #endif } } #endif #if 0 for (i = 0;i < rtlight->cached_numfrustumplanes;i++) { plane = rtlight->cached_frustumplanes[i]; 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)); } #endif #if 0 // now add the light-space box planes if the light box is rotated, as any // caster outside the oriented light box is irrelevant (even if it passed // the worldspace light box, which is axial) if (rtlight->matrix_lighttoworld.m[0][0] != 1 || rtlight->matrix_lighttoworld.m[1][1] != 1 || rtlight->matrix_lighttoworld.m[2][2] != 1) { for (i = 0;i < 6;i++) { vec3_t v; VectorClear(v); v[i >> 1] = (i & 1) ? -1 : 1; Matrix4x4_Transform(&rtlight->matrix_lighttoworld, v, plane.normal); VectorSubtract(plane.normal, rtlight->shadoworigin, plane.normal); plane.dist = VectorNormalizeLength(plane.normal); plane.dist += DotProduct(plane.normal, rtlight->shadoworigin); rtlight->cached_frustumplanes[rtlight->cached_numfrustumplanes++] = plane; } } #endif #if 0 // add the world-space reduced box planes for (i = 0;i < 6;i++) { VectorClear(plane.normal); plane.normal[i >> 1] = (i & 1) ? -1 : 1; plane.dist = (i & 1) ? -rtlight->cached_cullmaxs[i >> 1] : rtlight->cached_cullmins[i >> 1]; rtlight->cached_frustumplanes[rtlight->cached_numfrustumplanes++] = plane; } #endif #if 0 { int j, oldnum; vec3_t points[8]; vec_t bestdist; // reduce all plane distances to tightly fit the rtlight cull box, which // is in worldspace VectorSet(points[0], rtlight->cached_cullmins[0], rtlight->cached_cullmins[1], rtlight->cached_cullmins[2]); VectorSet(points[1], rtlight->cached_cullmaxs[0], rtlight->cached_cullmins[1], rtlight->cached_cullmins[2]); VectorSet(points[2], rtlight->cached_cullmins[0], rtlight->cached_cullmaxs[1], rtlight->cached_cullmins[2]); VectorSet(points[3], rtlight->cached_cullmaxs[0], rtlight->cached_cullmaxs[1], rtlight->cached_cullmins[2]); VectorSet(points[4], rtlight->cached_cullmins[0], rtlight->cached_cullmins[1], rtlight->cached_cullmaxs[2]); VectorSet(points[5], rtlight->cached_cullmaxs[0], rtlight->cached_cullmins[1], rtlight->cached_cullmaxs[2]); VectorSet(points[6], rtlight->cached_cullmins[0], rtlight->cached_cullmaxs[1], rtlight->cached_cullmaxs[2]); VectorSet(points[7], rtlight->cached_cullmaxs[0], rtlight->cached_cullmaxs[1], rtlight->cached_cullmaxs[2]); oldnum = rtlight->cached_numfrustumplanes; rtlight->cached_numfrustumplanes = 0; for (j = 0;j < oldnum;j++) { // find the nearest point on the box to this plane bestdist = DotProduct(rtlight->cached_frustumplanes[j].normal, points[0]); for (i = 1;i < 8;i++) { dist = DotProduct(rtlight->cached_frustumplanes[j].normal, points[i]); if (bestdist > dist) bestdist = dist; } Con_Printf("light %p %splane #%i %f %f %f : %f < %f\n", rtlight, rtlight->cached_frustumplanes[j].dist < bestdist + 0.03125 ? "^2" : "^1", j, rtlight->cached_frustumplanes[j].normal[0], rtlight->cached_frustumplanes[j].normal[1], rtlight->cached_frustumplanes[j].normal[2], rtlight->cached_frustumplanes[j].dist, bestdist); // if the nearest point is near or behind the plane, we want this // plane, otherwise the plane is useless as it won't cull anything if (rtlight->cached_frustumplanes[j].dist < bestdist + 0.03125) { PlaneClassify(&rtlight->cached_frustumplanes[j]); rtlight->cached_frustumplanes[rtlight->cached_numfrustumplanes++] = rtlight->cached_frustumplanes[j]; } } } #endif } void R_Shadow_DrawWorldShadow_ShadowMap(int numsurfaces, int *surfacelist, const unsigned char *trispvs, const unsigned char *surfacesides) { shadowmesh_t *mesh; RSurf_ActiveWorldEntity(); if (rsurface.rtlight->compiled && r_shadow_realtime_world_compile.integer && r_shadow_realtime_world_compileshadow.integer) { CHECKGLERROR GL_CullFace(GL_NONE); mesh = rsurface.rtlight->static_meshchain_shadow_shadowmap; for (;mesh;mesh = mesh->next) { if (!mesh->sidetotals[r_shadow_shadowmapside]) continue; r_refdef.stats.lights_shadowtriangles += mesh->sidetotals[r_shadow_shadowmapside]; R_Mesh_PrepareVertices_Position(mesh->numverts, mesh->vertexposition, mesh->vertexpositionbuffer); R_Mesh_Draw(0, mesh->numverts, mesh->sideoffsets[r_shadow_shadowmapside], mesh->sidetotals[r_shadow_shadowmapside], mesh->element3i, mesh->element3i_indexbuffer, mesh->element3i_bufferoffset, mesh->element3s, mesh->element3s_indexbuffer, mesh->element3s_bufferoffset); } CHECKGLERROR } else if (r_refdef.scene.worldentity->model) r_refdef.scene.worldmodel->DrawShadowMap(r_shadow_shadowmapside, r_refdef.scene.worldentity, rsurface.rtlight->shadoworigin, NULL, rsurface.rtlight->radius, numsurfaces, surfacelist, surfacesides, rsurface.rtlight->cached_cullmins, rsurface.rtlight->cached_cullmaxs); rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity } void R_Shadow_DrawWorldShadow_ShadowVolume(int numsurfaces, int *surfacelist, const unsigned char *trispvs) { qboolean zpass = false; shadowmesh_t *mesh; int t, tend; int surfacelistindex; msurface_t *surface; RSurf_ActiveWorldEntity(); if (rsurface.rtlight->compiled && r_shadow_realtime_world_compile.integer && r_shadow_realtime_world_compileshadow.integer) { CHECKGLERROR if (r_shadow_rendermode != R_SHADOW_RENDERMODE_VISIBLEVOLUMES) { zpass = R_Shadow_UseZPass(r_refdef.scene.worldmodel->normalmins, r_refdef.scene.worldmodel->normalmaxs); R_Shadow_RenderMode_StencilShadowVolumes(zpass); } mesh = zpass ? rsurface.rtlight->static_meshchain_shadow_zpass : rsurface.rtlight->static_meshchain_shadow_zfail; for (;mesh;mesh = mesh->next) { r_refdef.stats.lights_shadowtriangles += mesh->numtriangles; R_Mesh_PrepareVertices_Position(mesh->numverts, mesh->vertexposition, mesh->vertexpositionbuffer); if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZPASS_STENCIL) { // increment stencil if frontface is infront of depthbuffer GL_CullFace(r_refdef.view.cullface_back); R_SetStencil(true, 255, GL_KEEP, GL_KEEP, GL_INCR, GL_ALWAYS, 128, 255); R_Mesh_Draw(0, mesh->numverts, 0, mesh->numtriangles, mesh->element3i, mesh->element3i_indexbuffer, mesh->element3i_bufferoffset, mesh->element3s, mesh->element3s_indexbuffer, mesh->element3s_bufferoffset); // decrement stencil if backface is infront of depthbuffer GL_CullFace(r_refdef.view.cullface_front); R_SetStencil(true, 255, GL_KEEP, GL_KEEP, GL_DECR, GL_ALWAYS, 128, 255); } else if (r_shadow_rendermode == R_SHADOW_RENDERMODE_ZFAIL_STENCIL) { // decrement stencil if backface is behind depthbuffer GL_CullFace(r_refdef.view.cullface_front); R_SetStencil(true, 255, GL_KEEP, GL_DECR, GL_KEEP, GL_ALWAYS, 128, 255); R_Mesh_Draw(0, mesh->numverts, 0, mesh->numtriangles, mesh->element3i, mesh->element3i_indexbuffer, mesh->element3i_bufferoffset, mesh->element3s, mesh->element3s_indexbuffer, mesh->element3s_bufferoffset); // increment stencil if frontface is behind depthbuffer GL_CullFace(r_refdef.view.cullface_back); R_SetStencil(true, 255, GL_KEEP, GL_INCR, GL_KEEP, GL_ALWAYS, 128, 255); } R_Mesh_Draw(0, mesh->numverts, 0, mesh->numtriangles, mesh->element3i, mesh->element3i_indexbuffer, mesh->element3i_bufferoffset, mesh->element3s, mesh->element3s_indexbuffer, mesh->element3s_bufferoffset); } CHECKGLERROR } else if (numsurfaces && r_refdef.scene.worldmodel->brush.shadowmesh) { // use the shadow trispvs calculated earlier by GetLightInfo to cull world triangles on this dynamic light R_Shadow_PrepareShadowMark(r_refdef.scene.worldmodel->brush.shadowmesh->numtriangles); for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++) { surface = r_refdef.scene.worldmodel->data_surfaces + surfacelist[surfacelistindex]; for (t = surface->num_firstshadowmeshtriangle, tend = t + surface->num_triangles;t < tend;t++) if (CHECKPVSBIT(trispvs, t)) shadowmarklist[numshadowmark++] = t; } 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); } else if (numsurfaces) r_refdef.scene.worldmodel->DrawShadowVolume(r_refdef.scene.worldentity, rsurface.rtlight->shadoworigin, NULL, rsurface.rtlight->radius, numsurfaces, surfacelist, rsurface.rtlight->cached_cullmins, rsurface.rtlight->cached_cullmaxs); rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity } void R_Shadow_DrawEntityShadow(entity_render_t *ent) { vec3_t relativeshadoworigin, relativeshadowmins, relativeshadowmaxs; vec_t relativeshadowradius; RSurf_ActiveModelEntity(ent, false, false, false); Matrix4x4_Transform(&ent->inversematrix, rsurface.rtlight->shadoworigin, relativeshadoworigin); // we need to re-init the shader for each entity because the matrix changed relativeshadowradius = rsurface.rtlight->radius / ent->scale; relativeshadowmins[0] = relativeshadoworigin[0] - relativeshadowradius; relativeshadowmins[1] = relativeshadoworigin[1] - relativeshadowradius; relativeshadowmins[2] = relativeshadoworigin[2] - relativeshadowradius; relativeshadowmaxs[0] = relativeshadoworigin[0] + relativeshadowradius; relativeshadowmaxs[1] = relativeshadoworigin[1] + relativeshadowradius; relativeshadowmaxs[2] = relativeshadoworigin[2] + relativeshadowradius; switch (r_shadow_rendermode) { case R_SHADOW_RENDERMODE_SHADOWMAP2D: ent->model->DrawShadowMap(r_shadow_shadowmapside, ent, relativeshadoworigin, NULL, relativeshadowradius, ent->model->nummodelsurfaces, ent->model->sortedmodelsurfaces, NULL, relativeshadowmins, relativeshadowmaxs); break; default: ent->model->DrawShadowVolume(ent, relativeshadoworigin, NULL, relativeshadowradius, ent->model->nummodelsurfaces, ent->model->sortedmodelsurfaces, relativeshadowmins, relativeshadowmaxs); break; } rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity } void R_Shadow_SetupEntityLight(const entity_render_t *ent) { // set up properties for rendering light onto this entity RSurf_ActiveModelEntity(ent, true, true, false); GL_AlphaTest(false); Matrix4x4_Concat(&rsurface.entitytolight, &rsurface.rtlight->matrix_worldtolight, &ent->matrix); Matrix4x4_Concat(&rsurface.entitytoattenuationxyz, &matrix_attenuationxyz, &rsurface.entitytolight); Matrix4x4_Concat(&rsurface.entitytoattenuationz, &matrix_attenuationz, &rsurface.entitytolight); Matrix4x4_Transform(&ent->inversematrix, rsurface.rtlight->shadoworigin, rsurface.entitylightorigin); } void R_Shadow_DrawWorldLight(int numsurfaces, int *surfacelist, const unsigned char *lighttrispvs) { if (!r_refdef.scene.worldmodel->DrawLight) return; // set up properties for rendering light onto this entity RSurf_ActiveWorldEntity(); GL_AlphaTest(false); rsurface.entitytolight = rsurface.rtlight->matrix_worldtolight; Matrix4x4_Concat(&rsurface.entitytoattenuationxyz, &matrix_attenuationxyz, &rsurface.entitytolight); Matrix4x4_Concat(&rsurface.entitytoattenuationz, &matrix_attenuationz, &rsurface.entitytolight); VectorCopy(rsurface.rtlight->shadoworigin, rsurface.entitylightorigin); r_refdef.scene.worldmodel->DrawLight(r_refdef.scene.worldentity, numsurfaces, surfacelist, lighttrispvs); rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity } void R_Shadow_DrawEntityLight(entity_render_t *ent) { dp_model_t *model = ent->model; if (!model->DrawLight) return; R_Shadow_SetupEntityLight(ent); model->DrawLight(ent, model->nummodelsurfaces, model->sortedmodelsurfaces, NULL); rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity } void R_Shadow_PrepareLight(rtlight_t *rtlight) { int i; float f; int numleafs, numsurfaces; int *leaflist, *surfacelist; unsigned char *leafpvs; unsigned char *shadowtrispvs; unsigned char *lighttrispvs; //unsigned char *surfacesides; int numlightentities; int numlightentities_noselfshadow; int numshadowentities; int numshadowentities_noselfshadow; static entity_render_t *lightentities[MAX_EDICTS]; static entity_render_t *lightentities_noselfshadow[MAX_EDICTS]; static entity_render_t *shadowentities[MAX_EDICTS]; static entity_render_t *shadowentities_noselfshadow[MAX_EDICTS]; qboolean nolight; rtlight->draw = false; // skip lights that don't light because of ambientscale+diffusescale+specularscale being 0 (corona only lights) // skip lights that are basically invisible (color 0 0 0) nolight = VectorLength2(rtlight->color) * (rtlight->ambientscale + rtlight->diffusescale + rtlight->specularscale) < (1.0f / 1048576.0f); // loading is done before visibility checks because loading should happen // all at once at the start of a level, not when it stalls gameplay. // (especially important to benchmarks) // compile light if (rtlight->isstatic && !nolight && (!rtlight->compiled || (rtlight->shadow && rtlight->shadowmode != (int)r_shadow_shadowmode)) && r_shadow_realtime_world_compile.integer) { if (rtlight->compiled) R_RTLight_Uncompile(rtlight); R_RTLight_Compile(rtlight); } // load cubemap rtlight->currentcubemap = rtlight->cubemapname[0] ? R_GetCubemap(rtlight->cubemapname) : r_texture_whitecube; // look up the light style value at this time f = (rtlight->style >= 0 ? r_refdef.scene.rtlightstylevalue[rtlight->style] : 1) * r_shadow_lightintensityscale.value; VectorScale(rtlight->color, f, rtlight->currentcolor); /* if (rtlight->selected) { f = 2 + sin(realtime * M_PI * 4.0); VectorScale(rtlight->currentcolor, f, rtlight->currentcolor); } */ // if lightstyle is currently off, don't draw the light if (VectorLength2(rtlight->currentcolor) < (1.0f / 1048576.0f)) return; // skip processing on corona-only lights if (nolight) return; // if the light box is offscreen, skip it if (R_CullBox(rtlight->cullmins, rtlight->cullmaxs)) return; VectorCopy(rtlight->cullmins, rtlight->cached_cullmins); VectorCopy(rtlight->cullmaxs, rtlight->cached_cullmaxs); R_Shadow_ComputeShadowCasterCullingPlanes(rtlight); if (rtlight->compiled && r_shadow_realtime_world_compile.integer) { // compiled light, world available and can receive realtime lighting // retrieve leaf information numleafs = rtlight->static_numleafs; leaflist = rtlight->static_leaflist; leafpvs = rtlight->static_leafpvs; numsurfaces = rtlight->static_numsurfaces; surfacelist = rtlight->static_surfacelist; //surfacesides = NULL; shadowtrispvs = rtlight->static_shadowtrispvs; lighttrispvs = rtlight->static_lighttrispvs; } else if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->GetLightInfo) { // dynamic light, world available and can receive realtime lighting // calculate lit surfaces and leafs r_refdef.scene.worldmodel->GetLightInfo(r_refdef.scene.worldentity, rtlight->shadoworigin, rtlight->radius, rtlight->cached_cullmins, rtlight->cached_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, rtlight->cached_numfrustumplanes, rtlight->cached_frustumplanes); R_Shadow_ComputeShadowCasterCullingPlanes(rtlight); leaflist = r_shadow_buffer_leaflist; leafpvs = r_shadow_buffer_leafpvs; surfacelist = r_shadow_buffer_surfacelist; //surfacesides = r_shadow_buffer_surfacesides; shadowtrispvs = r_shadow_buffer_shadowtrispvs; lighttrispvs = r_shadow_buffer_lighttrispvs; // if the reduced leaf bounds are offscreen, skip it if (R_CullBox(rtlight->cached_cullmins, rtlight->cached_cullmaxs)) return; } else { // no world numleafs = 0; leaflist = NULL; leafpvs = NULL; numsurfaces = 0; surfacelist = NULL; //surfacesides = NULL; shadowtrispvs = NULL; lighttrispvs = NULL; } // check if light is illuminating any visible leafs if (numleafs) { for (i = 0;i < numleafs;i++) if (r_refdef.viewcache.world_leafvisible[leaflist[i]]) break; if (i == numleafs) return; } // make a list of lit entities and shadow casting entities numlightentities = 0; numlightentities_noselfshadow = 0; numshadowentities = 0; numshadowentities_noselfshadow = 0; // add dynamic entities that are lit by the light for (i = 0;i < r_refdef.scene.numentities;i++) { dp_model_t *model; entity_render_t *ent = r_refdef.scene.entities[i]; vec3_t org; if (!BoxesOverlap(ent->mins, ent->maxs, rtlight->cached_cullmins, rtlight->cached_cullmaxs)) continue; // skip the object entirely if it is not within the valid // shadow-casting region (which includes the lit region) if (R_CullBoxCustomPlanes(ent->mins, ent->maxs, rtlight->cached_numfrustumplanes, rtlight->cached_frustumplanes)) continue; if (!(model = ent->model)) continue; if (r_refdef.viewcache.entityvisible[i] && model->DrawLight && (ent->flags & RENDER_LIGHT)) { // this entity wants to receive light, is visible, and is // inside the light box // TODO: check if the surfaces in the model can receive light // so now check if it's in a leaf seen by the light 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)) continue; if (ent->flags & RENDER_NOSELFSHADOW) lightentities_noselfshadow[numlightentities_noselfshadow++] = ent; else lightentities[numlightentities++] = ent; // since it is lit, it probably also casts a shadow... // about the VectorDistance2 - light emitting entities should not cast their own shadow Matrix4x4_OriginFromMatrix(&ent->matrix, org); if ((ent->flags & RENDER_SHADOW) && model->DrawShadowVolume && VectorDistance2(org, rtlight->shadoworigin) > 0.1) { // note: exterior models without the RENDER_NOSELFSHADOW // flag still create a RENDER_NOSELFSHADOW shadow but // are lit normally, this means that they are // self-shadowing but do not shadow other // RENDER_NOSELFSHADOW entities such as the gun // (very weird, but keeps the player shadow off the gun) if (ent->flags & (RENDER_NOSELFSHADOW | RENDER_EXTERIORMODEL)) shadowentities_noselfshadow[numshadowentities_noselfshadow++] = ent; else shadowentities[numshadowentities++] = ent; } } else if (ent->flags & RENDER_SHADOW) { // this entity is not receiving light, but may still need to // cast a shadow... // TODO: check if the surfaces in the model can cast shadow // now check if it is in a leaf seen by the light 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)) continue; // about the VectorDistance2 - light emitting entities should not cast their own shadow Matrix4x4_OriginFromMatrix(&ent->matrix, org); if ((ent->flags & RENDER_SHADOW) && model->DrawShadowVolume && VectorDistance2(org, rtlight->shadoworigin) > 0.1) { if (ent->flags & (RENDER_NOSELFSHADOW | RENDER_EXTERIORMODEL)) shadowentities_noselfshadow[numshadowentities_noselfshadow++] = ent; else shadowentities[numshadowentities++] = ent; } } } // return if there's nothing at all to light if (numsurfaces + numlightentities + numlightentities_noselfshadow == 0) return; // count this light in the r_speeds r_refdef.stats.lights++; // flag it as worth drawing later rtlight->draw = true; // cache all the animated entities that cast a shadow but are not visible for (i = 0;i < numshadowentities;i++) if (!shadowentities[i]->animcache_vertex3f) R_AnimCache_GetEntity(shadowentities[i], false, false); for (i = 0;i < numshadowentities_noselfshadow;i++) if (!shadowentities_noselfshadow[i]->animcache_vertex3f) R_AnimCache_GetEntity(shadowentities_noselfshadow[i], false, false); // allocate some temporary memory for rendering this light later in the frame // reusable buffers need to be copied, static data can be used as-is rtlight->cached_numlightentities = numlightentities; rtlight->cached_numlightentities_noselfshadow = numlightentities_noselfshadow; rtlight->cached_numshadowentities = numshadowentities; rtlight->cached_numshadowentities_noselfshadow = numshadowentities_noselfshadow; rtlight->cached_numsurfaces = numsurfaces; rtlight->cached_lightentities = (entity_render_t**)R_FrameData_Store(numlightentities*sizeof(entity_render_t*), (void*)lightentities); rtlight->cached_lightentities_noselfshadow = (entity_render_t**)R_FrameData_Store(numlightentities_noselfshadow*sizeof(entity_render_t*), (void*)lightentities_noselfshadow); rtlight->cached_shadowentities = (entity_render_t**)R_FrameData_Store(numshadowentities*sizeof(entity_render_t*), (void*)shadowentities); rtlight->cached_shadowentities_noselfshadow = (entity_render_t**)R_FrameData_Store(numshadowentities_noselfshadow*sizeof(entity_render_t *), (void*)shadowentities_noselfshadow); if (shadowtrispvs == r_shadow_buffer_shadowtrispvs) { int numshadowtrispvsbytes = (((r_refdef.scene.worldmodel->brush.shadowmesh ? r_refdef.scene.worldmodel->brush.shadowmesh->numtriangles : r_refdef.scene.worldmodel->surfmesh.num_triangles) + 7) >> 3); int numlighttrispvsbytes = ((r_refdef.scene.worldmodel->surfmesh.num_triangles + 7) >> 3); rtlight->cached_shadowtrispvs = (unsigned char *)R_FrameData_Store(numshadowtrispvsbytes, shadowtrispvs); rtlight->cached_lighttrispvs = (unsigned char *)R_FrameData_Store(numlighttrispvsbytes, lighttrispvs); rtlight->cached_surfacelist = (int*)R_FrameData_Store(numsurfaces*sizeof(int), (void*)surfacelist); } else { // compiled light data rtlight->cached_shadowtrispvs = shadowtrispvs; rtlight->cached_lighttrispvs = lighttrispvs; rtlight->cached_surfacelist = surfacelist; } } void R_Shadow_DrawLight(rtlight_t *rtlight) { int i; int numsurfaces; unsigned char *shadowtrispvs, *lighttrispvs, *surfacesides; int numlightentities; int numlightentities_noselfshadow; int numshadowentities; int numshadowentities_noselfshadow; entity_render_t **lightentities; entity_render_t **lightentities_noselfshadow; entity_render_t **shadowentities; entity_render_t **shadowentities_noselfshadow; int *surfacelist; static unsigned char entitysides[MAX_EDICTS]; static unsigned char entitysides_noselfshadow[MAX_EDICTS]; vec3_t nearestpoint; vec_t distance; qboolean castshadows; int lodlinear; // check if we cached this light this frame (meaning it is worth drawing) if (!rtlight->draw) return; // if R_FrameData_Store ran out of space we skip anything dependent on it if (r_framedata_failed) return; numlightentities = rtlight->cached_numlightentities; numlightentities_noselfshadow = rtlight->cached_numlightentities_noselfshadow; numshadowentities = rtlight->cached_numshadowentities; numshadowentities_noselfshadow = rtlight->cached_numshadowentities_noselfshadow; numsurfaces = rtlight->cached_numsurfaces; lightentities = rtlight->cached_lightentities; lightentities_noselfshadow = rtlight->cached_lightentities_noselfshadow; shadowentities = rtlight->cached_shadowentities; shadowentities_noselfshadow = rtlight->cached_shadowentities_noselfshadow; shadowtrispvs = rtlight->cached_shadowtrispvs; lighttrispvs = rtlight->cached_lighttrispvs; surfacelist = rtlight->cached_surfacelist; // set up a scissor rectangle for this light if (R_Shadow_ScissorForBBox(rtlight->cached_cullmins, rtlight->cached_cullmaxs)) return; // don't let sound skip if going slow if (r_refdef.scene.extraupdate) S_ExtraUpdate (); // make this the active rtlight for rendering purposes R_Shadow_RenderMode_ActiveLight(rtlight); if (r_showshadowvolumes.integer && r_refdef.view.showdebug && numsurfaces + numshadowentities + numshadowentities_noselfshadow && rtlight->shadow && (rtlight->isstatic ? r_refdef.scene.rtworldshadows : r_refdef.scene.rtdlightshadows)) { // optionally draw visible shape of the shadow volumes // for performance analysis by level designers R_Shadow_RenderMode_VisibleShadowVolumes(); if (numsurfaces) R_Shadow_DrawWorldShadow_ShadowVolume(numsurfaces, surfacelist, shadowtrispvs); for (i = 0;i < numshadowentities;i++) R_Shadow_DrawEntityShadow(shadowentities[i]); for (i = 0;i < numshadowentities_noselfshadow;i++) R_Shadow_DrawEntityShadow(shadowentities_noselfshadow[i]); R_Shadow_RenderMode_VisibleLighting(false, false); } if (r_showlighting.integer && r_refdef.view.showdebug && numsurfaces + numlightentities + numlightentities_noselfshadow) { // optionally draw the illuminated areas // for performance analysis by level designers R_Shadow_RenderMode_VisibleLighting(false, false); if (numsurfaces) R_Shadow_DrawWorldLight(numsurfaces, surfacelist, lighttrispvs); for (i = 0;i < numlightentities;i++) R_Shadow_DrawEntityLight(lightentities[i]); for (i = 0;i < numlightentities_noselfshadow;i++) R_Shadow_DrawEntityLight(lightentities_noselfshadow[i]); } castshadows = numsurfaces + numshadowentities + numshadowentities_noselfshadow > 0 && rtlight->shadow && (rtlight->isstatic ? r_refdef.scene.rtworldshadows : r_refdef.scene.rtdlightshadows); nearestpoint[0] = bound(rtlight->cullmins[0], r_refdef.view.origin[0], rtlight->cullmaxs[0]); nearestpoint[1] = bound(rtlight->cullmins[1], r_refdef.view.origin[1], rtlight->cullmaxs[1]); nearestpoint[2] = bound(rtlight->cullmins[2], r_refdef.view.origin[2], rtlight->cullmaxs[2]); distance = VectorDistance(nearestpoint, r_refdef.view.origin); lodlinear = (rtlight->radius * r_shadow_shadowmapping_precision.value) / sqrt(max(1.0f, distance/rtlight->radius)); //lodlinear = (int)(r_shadow_shadowmapping_lod_bias.value + r_shadow_shadowmapping_lod_scale.value * rtlight->radius / max(1.0f, distance)); lodlinear = bound(r_shadow_shadowmapping_minsize.integer, lodlinear, r_shadow_shadowmapmaxsize); if (castshadows && r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAP2D) { float borderbias; int side; int size; int castermask = 0; int receivermask = 0; matrix4x4_t radiustolight = rtlight->matrix_worldtolight; Matrix4x4_Abs(&radiustolight); r_shadow_shadowmaplod = 0; for (i = 1;i < R_SHADOW_SHADOWMAP_NUMCUBEMAPS;i++) if ((r_shadow_shadowmapmaxsize >> i) > lodlinear) r_shadow_shadowmaplod = i; size = bound(r_shadow_shadowmapborder, lodlinear, r_shadow_shadowmapmaxsize); borderbias = r_shadow_shadowmapborder / (float)(size - r_shadow_shadowmapborder); surfacesides = NULL; if (numsurfaces) { if (rtlight->compiled && r_shadow_realtime_world_compile.integer && r_shadow_realtime_world_compileshadow.integer) { castermask = rtlight->static_shadowmap_casters; receivermask = rtlight->static_shadowmap_receivers; } else { surfacesides = r_shadow_buffer_surfacesides; for(i = 0;i < numsurfaces;i++) { msurface_t *surface = r_refdef.scene.worldmodel->data_surfaces + surfacelist[i]; surfacesides[i] = R_Shadow_CalcBBoxSideMask(surface->mins, surface->maxs, &rtlight->matrix_worldtolight, &radiustolight, borderbias); castermask |= surfacesides[i]; receivermask |= surfacesides[i]; } } } if (receivermask < 0x3F) { for (i = 0;i < numlightentities;i++) receivermask |= R_Shadow_CalcEntitySideMask(lightentities[i], &rtlight->matrix_worldtolight, &radiustolight, borderbias); if (receivermask < 0x3F) for(i = 0; i < numlightentities_noselfshadow;i++) receivermask |= R_Shadow_CalcEntitySideMask(lightentities_noselfshadow[i], &rtlight->matrix_worldtolight, &radiustolight, borderbias); } receivermask &= R_Shadow_CullFrustumSides(rtlight, size, r_shadow_shadowmapborder); if (receivermask) { for (i = 0;i < numshadowentities;i++) castermask |= (entitysides[i] = R_Shadow_CalcEntitySideMask(shadowentities[i], &rtlight->matrix_worldtolight, &radiustolight, borderbias)); for (i = 0;i < numshadowentities_noselfshadow;i++) castermask |= (entitysides_noselfshadow[i] = R_Shadow_CalcEntitySideMask(shadowentities_noselfshadow[i], &rtlight->matrix_worldtolight, &radiustolight, borderbias)); } //Con_Printf("distance %f lodlinear %i (lod %i) size %i\n", distance, lodlinear, r_shadow_shadowmaplod, size); // render shadow casters into 6 sided depth texture for (side = 0;side < 6;side++) if (receivermask & (1 << side)) { R_Shadow_RenderMode_ShadowMap(side, receivermask, size); if (! (castermask & (1 << side))) continue; if (numsurfaces) R_Shadow_DrawWorldShadow_ShadowMap(numsurfaces, surfacelist, shadowtrispvs, surfacesides); for (i = 0;i < numshadowentities;i++) if (entitysides[i] & (1 << side)) R_Shadow_DrawEntityShadow(shadowentities[i]); } if (numlightentities_noselfshadow) { // render lighting using the depth texture as shadowmap // draw lighting in the unmasked areas R_Shadow_RenderMode_Lighting(false, false, true); for (i = 0;i < numlightentities_noselfshadow;i++) R_Shadow_DrawEntityLight(lightentities_noselfshadow[i]); } // render shadow casters into 6 sided depth texture if (numshadowentities_noselfshadow) { for (side = 0;side < 6;side++) if ((receivermask & castermask) & (1 << side)) { R_Shadow_RenderMode_ShadowMap(side, 0, size); for (i = 0;i < numshadowentities_noselfshadow;i++) if (entitysides_noselfshadow[i] & (1 << side)) R_Shadow_DrawEntityShadow(shadowentities_noselfshadow[i]); } } // render lighting using the depth texture as shadowmap // draw lighting in the unmasked areas R_Shadow_RenderMode_Lighting(false, false, true); // draw lighting in the unmasked areas if (numsurfaces) R_Shadow_DrawWorldLight(numsurfaces, surfacelist, lighttrispvs); for (i = 0;i < numlightentities;i++) R_Shadow_DrawEntityLight(lightentities[i]); } else if (castshadows && vid.stencil) { // draw stencil shadow volumes to mask off pixels that are in shadow // so that they won't receive lighting GL_Scissor(r_shadow_lightscissor[0], r_shadow_lightscissor[1], r_shadow_lightscissor[2], r_shadow_lightscissor[3]); R_Shadow_ClearStencil(); if (numsurfaces) R_Shadow_DrawWorldShadow_ShadowVolume(numsurfaces, surfacelist, shadowtrispvs); for (i = 0;i < numshadowentities;i++) R_Shadow_DrawEntityShadow(shadowentities[i]); // draw lighting in the unmasked areas R_Shadow_RenderMode_Lighting(true, false, false); for (i = 0;i < numlightentities_noselfshadow;i++) R_Shadow_DrawEntityLight(lightentities_noselfshadow[i]); for (i = 0;i < numshadowentities_noselfshadow;i++) R_Shadow_DrawEntityShadow(shadowentities_noselfshadow[i]); // draw lighting in the unmasked areas R_Shadow_RenderMode_Lighting(true, false, false); if (numsurfaces) R_Shadow_DrawWorldLight(numsurfaces, surfacelist, lighttrispvs); for (i = 0;i < numlightentities;i++) R_Shadow_DrawEntityLight(lightentities[i]); } else { // draw lighting in the unmasked areas R_Shadow_RenderMode_Lighting(false, false, false); if (numsurfaces) R_Shadow_DrawWorldLight(numsurfaces, surfacelist, lighttrispvs); for (i = 0;i < numlightentities;i++) R_Shadow_DrawEntityLight(lightentities[i]); for (i = 0;i < numlightentities_noselfshadow;i++) R_Shadow_DrawEntityLight(lightentities_noselfshadow[i]); } if (r_shadow_usingdeferredprepass) { // when rendering deferred lighting, we simply rasterize the box if (castshadows && r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAP2D) R_Shadow_RenderMode_DrawDeferredLight(false, true); else if (castshadows && vid.stencil) R_Shadow_RenderMode_DrawDeferredLight(true, false); else R_Shadow_RenderMode_DrawDeferredLight(false, false); } } static void R_Shadow_FreeDeferred(void) { R_Mesh_DestroyFramebufferObject(r_shadow_prepassgeometryfbo); r_shadow_prepassgeometryfbo = 0; R_Mesh_DestroyFramebufferObject(r_shadow_prepasslightingfbo); r_shadow_prepasslightingfbo = 0; if (r_shadow_prepassgeometrydepthtexture) R_FreeTexture(r_shadow_prepassgeometrydepthtexture); r_shadow_prepassgeometrydepthtexture = NULL; if (r_shadow_prepassgeometrydepthcolortexture) R_FreeTexture(r_shadow_prepassgeometrydepthcolortexture); r_shadow_prepassgeometrydepthcolortexture = NULL; if (r_shadow_prepassgeometrynormalmaptexture) R_FreeTexture(r_shadow_prepassgeometrynormalmaptexture); r_shadow_prepassgeometrynormalmaptexture = NULL; if (r_shadow_prepasslightingdiffusetexture) R_FreeTexture(r_shadow_prepasslightingdiffusetexture); r_shadow_prepasslightingdiffusetexture = NULL; if (r_shadow_prepasslightingspeculartexture) R_FreeTexture(r_shadow_prepasslightingspeculartexture); r_shadow_prepasslightingspeculartexture = NULL; } void R_Shadow_DrawPrepass(void) { int i; int flag; int lnum; size_t lightindex; dlight_t *light; size_t range; entity_render_t *ent; float clearcolor[4]; GL_AlphaTest(false); R_Mesh_ResetTextureState(); GL_DepthMask(true); GL_ColorMask(1,1,1,1); GL_BlendFunc(GL_ONE, GL_ZERO); GL_Color(1,1,1,1); GL_DepthTest(true); R_Mesh_SetRenderTargets(r_shadow_prepassgeometryfbo, r_shadow_prepassgeometrydepthtexture, r_shadow_prepassgeometrynormalmaptexture, r_shadow_prepassgeometrydepthcolortexture, NULL, NULL); Vector4Set(clearcolor, 0.5f,0.5f,0.5f,1.0f); GL_Clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT, clearcolor, 1.0f, 0); if (r_timereport_active) R_TimeReport("prepasscleargeom"); if (cl.csqc_vidvars.drawworld && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->DrawPrepass) r_refdef.scene.worldmodel->DrawPrepass(r_refdef.scene.worldentity); if (r_timereport_active) R_TimeReport("prepassworld"); for (i = 0;i < r_refdef.scene.numentities;i++) { if (!r_refdef.viewcache.entityvisible[i]) continue; ent = r_refdef.scene.entities[i]; if (ent->model && ent->model->DrawPrepass != NULL) ent->model->DrawPrepass(ent); } if (r_timereport_active) R_TimeReport("prepassmodels"); GL_DepthMask(false); GL_ColorMask(1,1,1,1); GL_Color(1,1,1,1); GL_DepthTest(true); R_Mesh_SetRenderTargets(r_shadow_prepasslightingfbo, r_shadow_prepassgeometrydepthtexture, r_shadow_prepasslightingdiffusetexture, r_shadow_prepasslightingspeculartexture, NULL, NULL); Vector4Set(clearcolor, 0, 0, 0, 0); GL_Clear(GL_COLOR_BUFFER_BIT, clearcolor, 1.0f, 0); if (r_timereport_active) R_TimeReport("prepassclearlit"); R_Shadow_RenderMode_Begin(); flag = r_refdef.scene.rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE; if (r_shadow_debuglight.integer >= 0) { lightindex = r_shadow_debuglight.integer; light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (light && (light->flags & flag) && light->rtlight.draw) R_Shadow_DrawLight(&light->rtlight); } else { range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked for (lightindex = 0;lightindex < range;lightindex++) { light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (light && (light->flags & flag) && light->rtlight.draw) R_Shadow_DrawLight(&light->rtlight); } } if (r_refdef.scene.rtdlight) for (lnum = 0;lnum < r_refdef.scene.numlights;lnum++) if (r_refdef.scene.lights[lnum]->draw) R_Shadow_DrawLight(r_refdef.scene.lights[lnum]); R_Mesh_ResetRenderTargets(); R_Shadow_RenderMode_End(); if (r_timereport_active) R_TimeReport("prepasslights"); } void R_Shadow_DrawLightSprites(void); void R_Shadow_PrepareLights(void) { int flag; int lnum; size_t lightindex; dlight_t *light; size_t range; float f; GLenum status; if (r_shadow_shadowmapmaxsize != bound(1, r_shadow_shadowmapping_maxsize.integer, (int)vid.maxtexturesize_2d / 4) || (r_shadow_shadowmode != R_SHADOW_SHADOWMODE_STENCIL) != (r_shadow_shadowmapping.integer || r_shadow_deferred.integer) || r_shadow_shadowmapvsdct != (r_shadow_shadowmapping_vsdct.integer != 0 && vid.renderpath == RENDERPATH_GL20) || r_shadow_shadowmapfilterquality != r_shadow_shadowmapping_filterquality.integer || r_shadow_shadowmapdepthbits != r_shadow_shadowmapping_depthbits.integer || r_shadow_shadowmapborder != bound(0, r_shadow_shadowmapping_bordersize.integer, 16)) R_Shadow_FreeShadowMaps(); r_shadow_usingshadowmaportho = false; switch (vid.renderpath) { case RENDERPATH_GL20: case RENDERPATH_CGGL: case RENDERPATH_D3D9: case RENDERPATH_D3D10: case RENDERPATH_D3D11: if (!r_shadow_deferred.integer || r_shadow_shadowmode == R_SHADOW_SHADOWMODE_STENCIL || !vid.support.ext_framebuffer_object || vid.maxdrawbuffers < 2) { r_shadow_usingdeferredprepass = false; if (r_shadow_prepass_width) R_Shadow_FreeDeferred(); r_shadow_prepass_width = r_shadow_prepass_height = 0; break; } if (r_shadow_prepass_width != vid.width || r_shadow_prepass_height != vid.height) { R_Shadow_FreeDeferred(); r_shadow_usingdeferredprepass = true; r_shadow_prepass_width = vid.width; r_shadow_prepass_height = vid.height; r_shadow_prepassgeometrydepthtexture = R_LoadTextureShadowMap2D(r_shadow_texturepool, "prepassgeometrydepthmap", vid.width, vid.height, 24, false); switch (vid.renderpath) { case RENDERPATH_D3D9: r_shadow_prepassgeometrydepthcolortexture = R_LoadTexture2D(r_shadow_texturepool, "prepassgeometrydepthcolormap", vid.width, vid.height, NULL, TEXTYPE_COLORBUFFER, TEXF_RENDERTARGET | TEXF_CLAMP | TEXF_ALPHA | TEXF_FORCENEAREST, -1, NULL); break; default: break; } r_shadow_prepassgeometrynormalmaptexture = R_LoadTexture2D(r_shadow_texturepool, "prepassgeometrynormalmap", vid.width, vid.height, NULL, TEXTYPE_COLORBUFFER, TEXF_RENDERTARGET | TEXF_CLAMP | TEXF_ALPHA | TEXF_FORCENEAREST, -1, NULL); r_shadow_prepasslightingdiffusetexture = R_LoadTexture2D(r_shadow_texturepool, "prepasslightingdiffuse", vid.width, vid.height, NULL, TEXTYPE_COLORBUFFER, TEXF_RENDERTARGET | TEXF_CLAMP | TEXF_ALPHA | TEXF_FORCENEAREST, -1, NULL); r_shadow_prepasslightingspeculartexture = R_LoadTexture2D(r_shadow_texturepool, "prepasslightingspecular", vid.width, vid.height, NULL, TEXTYPE_COLORBUFFER, TEXF_RENDERTARGET | TEXF_CLAMP | TEXF_ALPHA | TEXF_FORCENEAREST, -1, NULL); // set up the geometry pass fbo (depth + normalmap) r_shadow_prepassgeometryfbo = R_Mesh_CreateFramebufferObject(r_shadow_prepassgeometrydepthtexture, r_shadow_prepassgeometrynormalmaptexture, NULL, NULL, NULL); R_Mesh_SetRenderTargets(r_shadow_prepassgeometryfbo, r_shadow_prepassgeometrydepthtexture, r_shadow_prepassgeometrynormalmaptexture, r_shadow_prepassgeometrydepthcolortexture, NULL, NULL); // render depth into one texture and normalmap into the other if (qglDrawBuffersARB) { qglDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);CHECKGLERROR qglReadBuffer(GL_NONE);CHECKGLERROR status = qglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);CHECKGLERROR if (status != GL_FRAMEBUFFER_COMPLETE_EXT) { Con_Printf("R_PrepareRTLights: glCheckFramebufferStatusEXT returned %i\n", status); Cvar_SetValueQuick(&r_shadow_deferred, 0); r_shadow_usingdeferredprepass = false; } } // set up the lighting pass fbo (diffuse + specular) r_shadow_prepasslightingfbo = R_Mesh_CreateFramebufferObject(r_shadow_prepassgeometrydepthtexture, r_shadow_prepasslightingdiffusetexture, r_shadow_prepasslightingspeculartexture, NULL, NULL); R_Mesh_SetRenderTargets(r_shadow_prepasslightingfbo, r_shadow_prepassgeometrydepthtexture, r_shadow_prepasslightingdiffusetexture, r_shadow_prepasslightingspeculartexture, NULL, NULL); // render diffuse into one texture and specular into another, // with depth and normalmap bound as textures, // with depth bound as attachment as well if (qglDrawBuffersARB) { qglDrawBuffersARB(2, r_shadow_prepasslightingdrawbuffers);CHECKGLERROR qglReadBuffer(GL_NONE);CHECKGLERROR status = qglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);CHECKGLERROR if (status != GL_FRAMEBUFFER_COMPLETE_EXT) { Con_Printf("R_PrepareRTLights: glCheckFramebufferStatusEXT returned %i\n", status); Cvar_SetValueQuick(&r_shadow_deferred, 0); r_shadow_usingdeferredprepass = false; } } } break; case RENDERPATH_GL13: case RENDERPATH_GL11: r_shadow_usingdeferredprepass = false; break; } 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); flag = r_refdef.scene.rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE; if (r_shadow_debuglight.integer >= 0) { lightindex = r_shadow_debuglight.integer; light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (light && (light->flags & flag)) R_Shadow_PrepareLight(&light->rtlight); } else { range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked for (lightindex = 0;lightindex < range;lightindex++) { light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (light && (light->flags & flag)) R_Shadow_PrepareLight(&light->rtlight); } } if (r_refdef.scene.rtdlight) { for (lnum = 0;lnum < r_refdef.scene.numlights;lnum++) R_Shadow_PrepareLight(r_refdef.scene.lights[lnum]); } else if(gl_flashblend.integer) { for (lnum = 0;lnum < r_refdef.scene.numlights;lnum++) { rtlight_t *rtlight = r_refdef.scene.lights[lnum]; f = (rtlight->style >= 0 ? r_refdef.scene.lightstylevalue[rtlight->style] : 1) * r_shadow_lightintensityscale.value; VectorScale(rtlight->color, f, rtlight->currentcolor); } } if (r_editlights.integer) R_Shadow_DrawLightSprites(); } void R_Shadow_DrawLights(void) { int flag; int lnum; size_t lightindex; dlight_t *light; size_t range; R_Shadow_RenderMode_Begin(); flag = r_refdef.scene.rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE; if (r_shadow_debuglight.integer >= 0) { lightindex = r_shadow_debuglight.integer; light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (light && (light->flags & flag)) R_Shadow_DrawLight(&light->rtlight); } else { range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked for (lightindex = 0;lightindex < range;lightindex++) { light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (light && (light->flags & flag)) R_Shadow_DrawLight(&light->rtlight); } } if (r_refdef.scene.rtdlight) for (lnum = 0;lnum < r_refdef.scene.numlights;lnum++) R_Shadow_DrawLight(r_refdef.scene.lights[lnum]); R_Shadow_RenderMode_End(); } extern const float r_screenvertex3f[12]; extern void R_SetupView(qboolean allowwaterclippingplane); extern void R_ResetViewRendering3D(void); extern void R_ResetViewRendering2D(void); extern cvar_t r_shadows; extern cvar_t r_shadows_darken; extern cvar_t r_shadows_drawafterrtlighting; extern cvar_t r_shadows_castfrombmodels; extern cvar_t r_shadows_throwdistance; extern cvar_t r_shadows_throwdirection; extern cvar_t r_shadows_focus; extern cvar_t r_shadows_shadowmapscale; void R_Shadow_PrepareModelShadows(void) { int i; float scale, size, radius, dot1, dot2; vec3_t shadowdir, shadowforward, shadowright, shadoworigin, shadowfocus, shadowmins, shadowmaxs; entity_render_t *ent; if (!r_refdef.scene.numentities) return; switch (r_shadow_shadowmode) { case R_SHADOW_SHADOWMODE_SHADOWMAP2D: if (r_shadows.integer >= 2) break; // fall through case R_SHADOW_SHADOWMODE_STENCIL: for (i = 0;i < r_refdef.scene.numentities;i++) { ent = r_refdef.scene.entities[i]; if (!ent->animcache_vertex3f && ent->model && ent->model->DrawShadowVolume != NULL && (!ent->model->brush.submodel || r_shadows_castfrombmodels.integer) && (ent->flags & RENDER_SHADOW)) R_AnimCache_GetEntity(ent, false, false); } return; default: return; } size = 2*r_shadow_shadowmapmaxsize; scale = r_shadow_shadowmapping_precision.value * r_shadows_shadowmapscale.value; radius = 0.5f * size / scale; Math_atov(r_shadows_throwdirection.string, shadowdir); VectorNormalize(shadowdir); dot1 = DotProduct(r_refdef.view.forward, shadowdir); dot2 = DotProduct(r_refdef.view.up, shadowdir); if (fabs(dot1) <= fabs(dot2)) VectorMA(r_refdef.view.forward, -dot1, shadowdir, shadowforward); else VectorMA(r_refdef.view.up, -dot2, shadowdir, shadowforward); VectorNormalize(shadowforward); CrossProduct(shadowdir, shadowforward, shadowright); Math_atov(r_shadows_focus.string, shadowfocus); VectorM(shadowfocus[0], r_refdef.view.right, shadoworigin); VectorMA(shadoworigin, shadowfocus[1], r_refdef.view.up, shadoworigin); VectorMA(shadoworigin, -shadowfocus[2], r_refdef.view.forward, shadoworigin); VectorAdd(shadoworigin, r_refdef.view.origin, shadoworigin); if (shadowfocus[0] || shadowfocus[1] || shadowfocus[2]) dot1 = 1; VectorMA(shadoworigin, (1.0f - fabs(dot1)) * radius, shadowforward, shadoworigin); shadowmins[0] = shadoworigin[0] - r_shadows_throwdistance.value * fabs(shadowdir[0]) - radius * (fabs(shadowforward[0]) + fabs(shadowright[0])); shadowmins[1] = shadoworigin[1] - r_shadows_throwdistance.value * fabs(shadowdir[1]) - radius * (fabs(shadowforward[1]) + fabs(shadowright[1])); shadowmins[2] = shadoworigin[2] - r_shadows_throwdistance.value * fabs(shadowdir[2]) - radius * (fabs(shadowforward[2]) + fabs(shadowright[2])); shadowmaxs[0] = shadoworigin[0] + r_shadows_throwdistance.value * fabs(shadowdir[0]) + radius * (fabs(shadowforward[0]) + fabs(shadowright[0])); shadowmaxs[1] = shadoworigin[1] + r_shadows_throwdistance.value * fabs(shadowdir[1]) + radius * (fabs(shadowforward[1]) + fabs(shadowright[1])); shadowmaxs[2] = shadoworigin[2] + r_shadows_throwdistance.value * fabs(shadowdir[2]) + radius * (fabs(shadowforward[2]) + fabs(shadowright[2])); for (i = 0;i < r_refdef.scene.numentities;i++) { ent = r_refdef.scene.entities[i]; if (!BoxesOverlap(ent->mins, ent->maxs, shadowmins, shadowmaxs)) continue; // cast shadows from anything of the map (submodels are optional) if (!ent->animcache_vertex3f && ent->model && ent->model->DrawShadowMap != NULL && (!ent->model->brush.submodel || r_shadows_castfrombmodels.integer) && (ent->flags & RENDER_SHADOW)) R_AnimCache_GetEntity(ent, false, false); } } void R_DrawModelShadowMaps(void) { int i; float relativethrowdistance, scale, size, radius, nearclip, farclip, bias, dot1, dot2; entity_render_t *ent; vec3_t relativelightorigin; vec3_t relativelightdirection, relativeforward, relativeright; vec3_t relativeshadowmins, relativeshadowmaxs; vec3_t shadowdir, shadowforward, shadowright, shadoworigin, shadowfocus; float m[12]; matrix4x4_t shadowmatrix, cameramatrix, mvpmatrix, invmvpmatrix, scalematrix, texmatrix; r_viewport_t viewport; GLuint fbo = 0; float clearcolor[4]; if (!r_refdef.scene.numentities) return; switch (r_shadow_shadowmode) { case R_SHADOW_SHADOWMODE_SHADOWMAP2D: break; default: return; } R_ResetViewRendering3D(); R_Shadow_RenderMode_Begin(); R_Shadow_RenderMode_ActiveLight(NULL); switch (r_shadow_shadowmode) { case R_SHADOW_SHADOWMODE_SHADOWMAP2D: if (!r_shadow_shadowmap2dtexture) R_Shadow_MakeShadowMap(0, r_shadow_shadowmapmaxsize); fbo = r_shadow_fbo2d; r_shadow_shadowmap_texturescale[0] = 1.0f / R_TextureWidth(r_shadow_shadowmap2dtexture); r_shadow_shadowmap_texturescale[1] = 1.0f / R_TextureHeight(r_shadow_shadowmap2dtexture); r_shadow_rendermode = R_SHADOW_RENDERMODE_SHADOWMAP2D; break; default: break; } size = 2*r_shadow_shadowmapmaxsize; scale = (r_shadow_shadowmapping_precision.value * r_shadows_shadowmapscale.value) / size; radius = 0.5f / scale; nearclip = -r_shadows_throwdistance.value; farclip = r_shadows_throwdistance.value; bias = r_shadow_shadowmapping_bias.value * r_shadow_shadowmapping_nearclip.value / (2 * r_shadows_throwdistance.value) * (1024.0f / size); r_shadow_shadowmap_parameters[0] = size; r_shadow_shadowmap_parameters[1] = size; r_shadow_shadowmap_parameters[2] = 1.0; r_shadow_shadowmap_parameters[3] = bound(0.0f, 1.0f - r_shadows_darken.value, 1.0f); Math_atov(r_shadows_throwdirection.string, shadowdir); VectorNormalize(shadowdir); Math_atov(r_shadows_focus.string, shadowfocus); VectorM(shadowfocus[0], r_refdef.view.right, shadoworigin); VectorMA(shadoworigin, shadowfocus[1], r_refdef.view.up, shadoworigin); VectorMA(shadoworigin, -shadowfocus[2], r_refdef.view.forward, shadoworigin); VectorAdd(shadoworigin, r_refdef.view.origin, shadoworigin); dot1 = DotProduct(r_refdef.view.forward, shadowdir); dot2 = DotProduct(r_refdef.view.up, shadowdir); if (fabs(dot1) <= fabs(dot2)) VectorMA(r_refdef.view.forward, -dot1, shadowdir, shadowforward); else VectorMA(r_refdef.view.up, -dot2, shadowdir, shadowforward); VectorNormalize(shadowforward); VectorM(scale, shadowforward, &m[0]); if (shadowfocus[0] || shadowfocus[1] || shadowfocus[2]) dot1 = 1; m[3] = fabs(dot1) * 0.5f - DotProduct(shadoworigin, &m[0]); CrossProduct(shadowdir, shadowforward, shadowright); VectorM(scale, shadowright, &m[4]); m[7] = 0.5f - DotProduct(shadoworigin, &m[4]); VectorM(1.0f / (farclip - nearclip), shadowdir, &m[8]); m[11] = 0.5f - DotProduct(shadoworigin, &m[8]); Matrix4x4_FromArray12FloatD3D(&shadowmatrix, m); Matrix4x4_Invert_Full(&cameramatrix, &shadowmatrix); R_Viewport_InitOrtho(&viewport, &cameramatrix, 0, 0, size, size, 0, 0, 1, 1, 0, -1, NULL); VectorMA(shadoworigin, (1.0f - fabs(dot1)) * radius, shadowforward, shadoworigin); R_Mesh_SetRenderTargets(fbo, r_shadow_shadowmap2dtexture, r_shadow_shadowmap2dcolortexture, NULL, NULL, NULL); R_SetupShader_DepthOrShadow(); GL_PolygonOffset(r_shadow_shadowmapping_polygonfactor.value, r_shadow_shadowmapping_polygonoffset.value); GL_DepthMask(true); GL_DepthTest(true); R_SetViewport(&viewport); GL_Scissor(viewport.x, viewport.y, min(viewport.width + r_shadow_shadowmapborder, 2*r_shadow_shadowmapmaxsize), viewport.height + r_shadow_shadowmapborder); Vector4Set(clearcolor, 1,1,1,1); // in D3D9 we have to render to a color texture shadowmap // in GL we render directly to a depth texture only if (r_shadow_shadowmap2dtexture) GL_Clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT, clearcolor, 1.0f, 0); else GL_Clear(GL_DEPTH_BUFFER_BIT, clearcolor, 1.0f, 0); // render into a slightly restricted region so that the borders of the // shadowmap area fade away, rather than streaking across everything // outside the usable area GL_Scissor(viewport.x + r_shadow_shadowmapborder, viewport.y + r_shadow_shadowmapborder, viewport.width - 2*r_shadow_shadowmapborder, viewport.height - 2*r_shadow_shadowmapborder); #if 0 // debugging R_Mesh_ResetRenderTargets(); R_SetupShader_ShowDepth(); GL_ColorMask(1,1,1,1); GL_Clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT, clearcolor, 1.0f, 0); #endif for (i = 0;i < r_refdef.scene.numentities;i++) { ent = r_refdef.scene.entities[i]; // cast shadows from anything of the map (submodels are optional) if (ent->model && ent->model->DrawShadowMap != NULL && (!ent->model->brush.submodel || r_shadows_castfrombmodels.integer) && (ent->flags & RENDER_SHADOW)) { relativethrowdistance = r_shadows_throwdistance.value * Matrix4x4_ScaleFromMatrix(&ent->inversematrix); Matrix4x4_Transform(&ent->inversematrix, shadoworigin, relativelightorigin); Matrix4x4_Transform3x3(&ent->inversematrix, shadowdir, relativelightdirection); Matrix4x4_Transform3x3(&ent->inversematrix, shadowforward, relativeforward); Matrix4x4_Transform3x3(&ent->inversematrix, shadowright, relativeright); relativeshadowmins[0] = relativelightorigin[0] - r_shadows_throwdistance.value * fabs(relativelightdirection[0]) - radius * (fabs(relativeforward[0]) + fabs(relativeright[0])); relativeshadowmins[1] = relativelightorigin[1] - r_shadows_throwdistance.value * fabs(relativelightdirection[1]) - radius * (fabs(relativeforward[1]) + fabs(relativeright[1])); relativeshadowmins[2] = relativelightorigin[2] - r_shadows_throwdistance.value * fabs(relativelightdirection[2]) - radius * (fabs(relativeforward[2]) + fabs(relativeright[2])); relativeshadowmaxs[0] = relativelightorigin[0] + r_shadows_throwdistance.value * fabs(relativelightdirection[0]) + radius * (fabs(relativeforward[0]) + fabs(relativeright[0])); relativeshadowmaxs[1] = relativelightorigin[1] + r_shadows_throwdistance.value * fabs(relativelightdirection[1]) + radius * (fabs(relativeforward[1]) + fabs(relativeright[1])); relativeshadowmaxs[2] = relativelightorigin[2] + r_shadows_throwdistance.value * fabs(relativelightdirection[2]) + radius * (fabs(relativeforward[2]) + fabs(relativeright[2])); RSurf_ActiveModelEntity(ent, false, false, false); ent->model->DrawShadowMap(0, ent, relativelightorigin, relativelightdirection, relativethrowdistance, ent->model->nummodelsurfaces, ent->model->sortedmodelsurfaces, NULL, relativeshadowmins, relativeshadowmaxs); rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity } } #if 0 if (r_test.integer) { unsigned char *rawpixels = Z_Malloc(viewport.width*viewport.height*4); CHECKGLERROR qglReadPixels(viewport.x, viewport.y, viewport.width, viewport.height, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, rawpixels); CHECKGLERROR Image_WriteTGABGRA("r_shadows_2.tga", viewport.width, viewport.height, rawpixels); Cvar_SetValueQuick(&r_test, 0); Z_Free(rawpixels); } #endif R_Shadow_RenderMode_End(); Matrix4x4_Concat(&mvpmatrix, &r_refdef.view.viewport.projectmatrix, &r_refdef.view.viewport.viewmatrix); Matrix4x4_Invert_Full(&invmvpmatrix, &mvpmatrix); Matrix4x4_CreateScale3(&scalematrix, size, -size, 1); Matrix4x4_AdjustOrigin(&scalematrix, 0, size, -0.5f * bias); Matrix4x4_Concat(&texmatrix, &scalematrix, &shadowmatrix); Matrix4x4_Concat(&r_shadow_shadowmapmatrix, &texmatrix, &invmvpmatrix); switch (vid.renderpath) { case RENDERPATH_GL11: case RENDERPATH_GL13: case RENDERPATH_GL20: case RENDERPATH_CGGL: break; case RENDERPATH_D3D9: case RENDERPATH_D3D10: case RENDERPATH_D3D11: #ifdef OPENGL_ORIENTATION r_shadow_shadowmapmatrix.m[0][0] *= -1.0f; r_shadow_shadowmapmatrix.m[0][1] *= -1.0f; r_shadow_shadowmapmatrix.m[0][2] *= -1.0f; r_shadow_shadowmapmatrix.m[0][3] *= -1.0f; #else r_shadow_shadowmapmatrix.m[0][0] *= -1.0f; r_shadow_shadowmapmatrix.m[1][0] *= -1.0f; r_shadow_shadowmapmatrix.m[2][0] *= -1.0f; r_shadow_shadowmapmatrix.m[3][0] *= -1.0f; #endif break; } r_shadow_usingshadowmaportho = true; switch (r_shadow_shadowmode) { case R_SHADOW_SHADOWMODE_SHADOWMAP2D: r_shadow_usingshadowmap2d = true; break; default: break; } } void R_DrawModelShadows(void) { int i; float relativethrowdistance; entity_render_t *ent; vec3_t relativelightorigin; vec3_t relativelightdirection; vec3_t relativeshadowmins, relativeshadowmaxs; vec3_t tmp, shadowdir; if (!r_refdef.scene.numentities || !vid.stencil || (r_shadow_shadowmode != R_SHADOW_SHADOWMODE_STENCIL && r_shadows.integer != 1)) return; R_ResetViewRendering3D(); //GL_Scissor(r_refdef.view.viewport.x, r_refdef.view.viewport.y, r_refdef.view.viewport.width, r_refdef.view.viewport.height); //GL_Scissor(r_refdef.view.x, vid.height - r_refdef.view.height - r_refdef.view.y, r_refdef.view.width, r_refdef.view.height); R_Shadow_RenderMode_Begin(); R_Shadow_RenderMode_ActiveLight(NULL); r_shadow_lightscissor[0] = r_refdef.view.x; r_shadow_lightscissor[1] = vid.height - r_refdef.view.y - r_refdef.view.height; r_shadow_lightscissor[2] = r_refdef.view.width; r_shadow_lightscissor[3] = r_refdef.view.height; R_Shadow_RenderMode_StencilShadowVolumes(false); // get shadow dir if (r_shadows.integer == 2) { Math_atov(r_shadows_throwdirection.string, shadowdir); VectorNormalize(shadowdir); } R_Shadow_ClearStencil(); for (i = 0;i < r_refdef.scene.numentities;i++) { ent = r_refdef.scene.entities[i]; // cast shadows from anything of the map (submodels are optional) if (ent->model && ent->model->DrawShadowVolume != NULL && (!ent->model->brush.submodel || r_shadows_castfrombmodels.integer) && (ent->flags & RENDER_SHADOW)) { relativethrowdistance = r_shadows_throwdistance.value * Matrix4x4_ScaleFromMatrix(&ent->inversematrix); VectorSet(relativeshadowmins, -relativethrowdistance, -relativethrowdistance, -relativethrowdistance); VectorSet(relativeshadowmaxs, relativethrowdistance, relativethrowdistance, relativethrowdistance); if (r_shadows.integer == 2) // 2: simpler mode, throw shadows always in same direction Matrix4x4_Transform3x3(&ent->inversematrix, shadowdir, relativelightdirection); else { if(ent->entitynumber != 0) { if(ent->entitynumber >= MAX_EDICTS) // csqc entity { // FIXME handle this VectorNegate(ent->modellight_lightdir, relativelightdirection); } else { // networked entity - might be attached in some way (then we should use the parent's light direction, to not tear apart attached entities) int entnum, entnum2, recursion; entnum = entnum2 = ent->entitynumber; for(recursion = 32; recursion > 0; --recursion) { entnum2 = cl.entities[entnum].state_current.tagentity; if(entnum2 >= 1 && entnum2 < cl.num_entities && cl.entities_active[entnum2]) entnum = entnum2; else break; } if(recursion && recursion != 32) // if we followed a valid non-empty attachment chain { VectorNegate(cl.entities[entnum].render.modellight_lightdir, relativelightdirection); // transform into modelspace of OUR entity Matrix4x4_Transform3x3(&cl.entities[entnum].render.matrix, relativelightdirection, tmp); Matrix4x4_Transform3x3(&ent->inversematrix, tmp, relativelightdirection); } else VectorNegate(ent->modellight_lightdir, relativelightdirection); } } else VectorNegate(ent->modellight_lightdir, relativelightdirection); } VectorScale(relativelightdirection, -relativethrowdistance, relativelightorigin); RSurf_ActiveModelEntity(ent, false, false, false); ent->model->DrawShadowVolume(ent, relativelightorigin, relativelightdirection, relativethrowdistance, ent->model->nummodelsurfaces, ent->model->sortedmodelsurfaces, relativeshadowmins, relativeshadowmaxs); rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity } } // not really the right mode, but this will disable any silly stencil features R_Shadow_RenderMode_End(); // set up ortho view for rendering this pass //GL_Scissor(r_refdef.view.x, vid.height - r_refdef.view.height - r_refdef.view.y, r_refdef.view.width, r_refdef.view.height); //GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1); //GL_ScissorTest(true); //R_EntityMatrix(&identitymatrix); //R_Mesh_ResetTextureState(); R_ResetViewRendering2D(); // set up a darkening blend on shadowed areas GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); //GL_DepthRange(0, 1); //GL_DepthTest(false); //GL_DepthMask(false); //GL_PolygonOffset(0, 0);CHECKGLERROR GL_Color(0, 0, 0, r_shadows_darken.value); //GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1); //GL_DepthFunc(GL_ALWAYS); R_SetStencil(true, 255, GL_KEEP, GL_KEEP, GL_KEEP, GL_NOTEQUAL, 128, 255); // apply the blend to the shadowed areas R_Mesh_PrepareVertices_Generic_Arrays(4, r_screenvertex3f, NULL, NULL); R_SetupShader_Generic(NULL, NULL, GL_MODULATE, 1); R_Mesh_Draw(0, 4, 0, 2, polygonelement3i, NULL, 0, polygonelement3s, NULL, 0); // restore the viewport R_SetViewport(&r_refdef.view.viewport); // restore other state to normal //R_Shadow_RenderMode_End(); } void R_BeginCoronaQuery(rtlight_t *rtlight, float scale, qboolean usequery) { float zdist; vec3_t centerorigin; float vertex3f[12]; // if it's too close, skip it if (VectorLength(rtlight->currentcolor) < (1.0f / 256.0f)) return; zdist = (DotProduct(rtlight->shadoworigin, r_refdef.view.forward) - DotProduct(r_refdef.view.origin, r_refdef.view.forward)); if (zdist < 32) return; if (usequery && r_numqueries + 2 <= r_maxqueries) { rtlight->corona_queryindex_allpixels = r_queries[r_numqueries++]; rtlight->corona_queryindex_visiblepixels = r_queries[r_numqueries++]; // we count potential samples in the middle of the screen, we count actual samples at the light location, this allows counting potential samples of off-screen lights VectorMA(r_refdef.view.origin, zdist, r_refdef.view.forward, centerorigin); switch(vid.renderpath) { case RENDERPATH_GL20: case RENDERPATH_GL13: case RENDERPATH_GL11: case RENDERPATH_CGGL: CHECKGLERROR // NOTE: GL_DEPTH_TEST must be enabled or ATI won't count samples, so use GL_DepthFunc instead qglBeginQueryARB(GL_SAMPLES_PASSED_ARB, rtlight->corona_queryindex_allpixels); GL_DepthFunc(GL_ALWAYS); R_CalcSprite_Vertex3f(vertex3f, centerorigin, r_refdef.view.right, r_refdef.view.up, scale, -scale, -scale, scale); R_Mesh_PrepareVertices_Position_Arrays(4, vertex3f); R_Mesh_Draw(0, 4, 0, 2, polygonelement3i, NULL, 0, polygonelement3s, NULL, 0); qglEndQueryARB(GL_SAMPLES_PASSED_ARB); GL_DepthFunc(GL_LEQUAL); qglBeginQueryARB(GL_SAMPLES_PASSED_ARB, rtlight->corona_queryindex_visiblepixels); R_CalcSprite_Vertex3f(vertex3f, rtlight->shadoworigin, r_refdef.view.right, r_refdef.view.up, scale, -scale, -scale, scale); R_Mesh_PrepareVertices_Position_Arrays(4, vertex3f); R_Mesh_Draw(0, 4, 0, 2, polygonelement3i, NULL, 0, polygonelement3s, NULL, 0); qglEndQueryARB(GL_SAMPLES_PASSED_ARB); CHECKGLERROR break; case RENDERPATH_D3D9: Con_DPrintf("FIXME D3D9 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; case RENDERPATH_D3D10: Con_DPrintf("FIXME D3D10 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; case RENDERPATH_D3D11: Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; } } rtlight->corona_visibility = bound(0, (zdist - 32) / 32, 1); } static float spritetexcoord2f[4*2] = {0, 1, 0, 0, 1, 0, 1, 1}; void R_DrawCorona(rtlight_t *rtlight, float cscale, float scale) { vec3_t color; GLint allpixels = 0, visiblepixels = 0; // now we have to check the query result if (rtlight->corona_queryindex_visiblepixels) { switch(vid.renderpath) { case RENDERPATH_GL20: case RENDERPATH_GL13: case RENDERPATH_GL11: case RENDERPATH_CGGL: CHECKGLERROR qglGetQueryObjectivARB(rtlight->corona_queryindex_visiblepixels, GL_QUERY_RESULT_ARB, &visiblepixels); qglGetQueryObjectivARB(rtlight->corona_queryindex_allpixels, GL_QUERY_RESULT_ARB, &allpixels); CHECKGLERROR break; case RENDERPATH_D3D9: Con_DPrintf("FIXME D3D9 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; case RENDERPATH_D3D10: Con_DPrintf("FIXME D3D10 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; case RENDERPATH_D3D11: Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; } //Con_Printf("%i of %i pixels\n", (int)visiblepixels, (int)allpixels); if (visiblepixels < 1 || allpixels < 1) return; rtlight->corona_visibility *= bound(0, (float)visiblepixels / (float)allpixels, 1); cscale *= rtlight->corona_visibility; } else { // FIXME: these traces should scan all render entities instead of cl.world if (CL_TraceLine(r_refdef.view.origin, rtlight->shadoworigin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction < 1) return; } VectorScale(rtlight->currentcolor, cscale, color); if (VectorLength(color) > (1.0f / 256.0f)) { float vertex3f[12]; qboolean negated = (color[0] + color[1] + color[2] < 0) && vid.support.ext_blend_subtract; if(negated) { VectorNegate(color, color); switch(vid.renderpath) { case RENDERPATH_GL11: case RENDERPATH_GL13: case RENDERPATH_GL20: case RENDERPATH_CGGL: qglBlendEquationEXT(GL_FUNC_REVERSE_SUBTRACT_EXT); break; case RENDERPATH_D3D9: #ifdef SUPPORTD3D IDirect3DDevice9_SetRenderState(vid_d3d9dev, D3DRS_BLENDOP, D3DBLENDOP_SUBTRACT); #endif break; case RENDERPATH_D3D10: Con_DPrintf("FIXME D3D10 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; case RENDERPATH_D3D11: Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; } } R_CalcSprite_Vertex3f(vertex3f, rtlight->shadoworigin, r_refdef.view.right, r_refdef.view.up, scale, -scale, -scale, scale); RSurf_ActiveCustomEntity(&identitymatrix, &identitymatrix, RENDER_NODEPTHTEST, 0, color[0], color[1], color[2], 1, 4, vertex3f, spritetexcoord2f, NULL, NULL, NULL, NULL, 2, polygonelement3i, polygonelement3s, false, false); R_DrawCustomSurface(r_shadow_lightcorona, &identitymatrix, MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_NOCULLFACE, 0, 4, 0, 2, false, false); if(negated) { switch(vid.renderpath) { case RENDERPATH_GL11: case RENDERPATH_GL13: case RENDERPATH_GL20: case RENDERPATH_CGGL: qglBlendEquationEXT(GL_FUNC_ADD_EXT); break; case RENDERPATH_D3D9: #ifdef SUPPORTD3D IDirect3DDevice9_SetRenderState(vid_d3d9dev, D3DRS_BLENDOP, D3DBLENDOP_ADD); #endif break; case RENDERPATH_D3D10: Con_DPrintf("FIXME D3D10 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; case RENDERPATH_D3D11: Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; } } } } void R_Shadow_DrawCoronas(void) { int i, flag; qboolean usequery = false; size_t lightindex; dlight_t *light; rtlight_t *rtlight; size_t range; if (r_coronas.value < (1.0f / 256.0f) && !gl_flashblend.integer) return; if (r_waterstate.renderingscene) return; flag = r_refdef.scene.rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE; R_EntityMatrix(&identitymatrix); range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked // check occlusion of coronas // use GL_ARB_occlusion_query if available // otherwise use raytraces r_numqueries = 0; switch (vid.renderpath) { case RENDERPATH_GL11: case RENDERPATH_GL13: case RENDERPATH_GL20: case RENDERPATH_CGGL: usequery = vid.support.arb_occlusion_query && r_coronas_occlusionquery.integer; if (usequery) { GL_ColorMask(0,0,0,0); if (r_maxqueries < (range + r_refdef.scene.numlights) * 2) if (r_maxqueries < MAX_OCCLUSION_QUERIES) { i = r_maxqueries; r_maxqueries = (range + r_refdef.scene.numlights) * 4; r_maxqueries = min(r_maxqueries, MAX_OCCLUSION_QUERIES); CHECKGLERROR qglGenQueriesARB(r_maxqueries - i, r_queries + i); CHECKGLERROR } RSurf_ActiveWorldEntity(); GL_BlendFunc(GL_ONE, GL_ZERO); GL_CullFace(GL_NONE); GL_DepthMask(false); GL_DepthRange(0, 1); GL_PolygonOffset(0, 0); GL_DepthTest(true); R_Mesh_ResetTextureState(); R_SetupShader_Generic(NULL, NULL, GL_MODULATE, 1); } break; case RENDERPATH_D3D9: usequery = false; //Con_DPrintf("FIXME D3D9 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; case RENDERPATH_D3D10: Con_DPrintf("FIXME D3D10 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; case RENDERPATH_D3D11: Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__); break; } for (lightindex = 0;lightindex < range;lightindex++) { light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (!light) continue; rtlight = &light->rtlight; rtlight->corona_visibility = 0; rtlight->corona_queryindex_visiblepixels = 0; rtlight->corona_queryindex_allpixels = 0; if (!(rtlight->flags & flag)) continue; if (rtlight->corona <= 0) continue; if (r_shadow_debuglight.integer >= 0 && r_shadow_debuglight.integer != (int)lightindex) continue; R_BeginCoronaQuery(rtlight, rtlight->radius * rtlight->coronasizescale * r_coronas_occlusionsizescale.value, usequery); } for (i = 0;i < r_refdef.scene.numlights;i++) { rtlight = r_refdef.scene.lights[i]; rtlight->corona_visibility = 0; rtlight->corona_queryindex_visiblepixels = 0; rtlight->corona_queryindex_allpixels = 0; if (!(rtlight->flags & flag)) continue; if (rtlight->corona <= 0) continue; R_BeginCoronaQuery(rtlight, rtlight->radius * rtlight->coronasizescale * r_coronas_occlusionsizescale.value, usequery); } if (usequery) GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1); // now draw the coronas using the query data for intensity info for (lightindex = 0;lightindex < range;lightindex++) { light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (!light) continue; rtlight = &light->rtlight; if (rtlight->corona_visibility <= 0) continue; R_DrawCorona(rtlight, rtlight->corona * r_coronas.value * 0.25f, rtlight->radius * rtlight->coronasizescale); } for (i = 0;i < r_refdef.scene.numlights;i++) { rtlight = r_refdef.scene.lights[i]; if (rtlight->corona_visibility <= 0) continue; if (gl_flashblend.integer) R_DrawCorona(rtlight, rtlight->corona, rtlight->radius * rtlight->coronasizescale * 2.0f); else R_DrawCorona(rtlight, rtlight->corona * r_coronas.value * 0.25f, rtlight->radius * rtlight->coronasizescale); } } dlight_t *R_Shadow_NewWorldLight(void) { return (dlight_t *)Mem_ExpandableArray_AllocRecord(&r_shadow_worldlightsarray); } 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) { matrix4x4_t matrix; // validate parameters if (style < 0 || style >= MAX_LIGHTSTYLES) { Con_Printf("R_Shadow_NewWorldLight: invalid light style number %i, must be >= 0 and < %i\n", light->style, MAX_LIGHTSTYLES); style = 0; } if (!cubemapname) cubemapname = ""; // copy to light properties VectorCopy(origin, light->origin); light->angles[0] = angles[0] - 360 * floor(angles[0] / 360); light->angles[1] = angles[1] - 360 * floor(angles[1] / 360); light->angles[2] = angles[2] - 360 * floor(angles[2] / 360); /* light->color[0] = max(color[0], 0); light->color[1] = max(color[1], 0); light->color[2] = max(color[2], 0); */ light->color[0] = color[0]; light->color[1] = color[1]; light->color[2] = color[2]; light->radius = max(radius, 0); light->style = style; light->shadow = shadowenable; light->corona = corona; strlcpy(light->cubemapname, cubemapname, sizeof(light->cubemapname)); light->coronasizescale = coronasizescale; light->ambientscale = ambientscale; light->diffusescale = diffusescale; light->specularscale = specularscale; light->flags = flags; // update renderable light data Matrix4x4_CreateFromQuakeEntity(&matrix, light->origin[0], light->origin[1], light->origin[2], light->angles[0], light->angles[1], light->angles[2], light->radius); 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); } void R_Shadow_FreeWorldLight(dlight_t *light) { if (r_shadow_selectedlight == light) r_shadow_selectedlight = NULL; R_RTLight_Uncompile(&light->rtlight); Mem_ExpandableArray_FreeRecord(&r_shadow_worldlightsarray, light); } void R_Shadow_ClearWorldLights(void) { size_t lightindex; dlight_t *light; size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked for (lightindex = 0;lightindex < range;lightindex++) { light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (light) R_Shadow_FreeWorldLight(light); } r_shadow_selectedlight = NULL; } void R_Shadow_SelectLight(dlight_t *light) { if (r_shadow_selectedlight) r_shadow_selectedlight->selected = false; r_shadow_selectedlight = light; if (r_shadow_selectedlight) r_shadow_selectedlight->selected = true; } void R_Shadow_DrawCursor_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist) { // this is never batched (there can be only one) float vertex3f[12]; R_CalcSprite_Vertex3f(vertex3f, r_editlights_cursorlocation, r_refdef.view.right, r_refdef.view.up, EDLIGHTSPRSIZE, -EDLIGHTSPRSIZE, -EDLIGHTSPRSIZE, EDLIGHTSPRSIZE); RSurf_ActiveCustomEntity(&identitymatrix, &identitymatrix, 0, 0, 1, 1, 1, 1, 4, vertex3f, spritetexcoord2f, NULL, NULL, NULL, NULL, 2, polygonelement3i, polygonelement3s, false, false); R_DrawCustomSurface(r_editlights_sprcursor, &identitymatrix, MATERIALFLAG_NODEPTHTEST | MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_NOCULLFACE, 0, 4, 0, 2, false, false); } void R_Shadow_DrawLightSprite_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist) { float intensity; float s; vec3_t spritecolor; skinframe_t *skinframe; float vertex3f[12]; // this is never batched (due to the ent parameter changing every time) // so numsurfaces == 1 and surfacelist[0] == lightnumber const dlight_t *light = (dlight_t *)ent; s = EDLIGHTSPRSIZE; R_CalcSprite_Vertex3f(vertex3f, light->origin, r_refdef.view.right, r_refdef.view.up, s, -s, -s, s); intensity = 0.5f; VectorScale(light->color, intensity, spritecolor); if (VectorLength(spritecolor) < 0.1732f) VectorSet(spritecolor, 0.1f, 0.1f, 0.1f); if (VectorLength(spritecolor) > 1.0f) VectorNormalize(spritecolor); // draw light sprite if (light->cubemapname[0] && !light->shadow) skinframe = r_editlights_sprcubemapnoshadowlight; else if (light->cubemapname[0]) skinframe = r_editlights_sprcubemaplight; else if (!light->shadow) skinframe = r_editlights_sprnoshadowlight; else skinframe = r_editlights_sprlight; RSurf_ActiveCustomEntity(&identitymatrix, &identitymatrix, 0, 0, spritecolor[0], spritecolor[1], spritecolor[2], 1, 4, vertex3f, spritetexcoord2f, NULL, NULL, NULL, NULL, 2, polygonelement3i, polygonelement3s, false, false); R_DrawCustomSurface(skinframe, &identitymatrix, MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_NOCULLFACE, 0, 4, 0, 2, false, false); // draw selection sprite if light is selected if (light->selected) { RSurf_ActiveCustomEntity(&identitymatrix, &identitymatrix, 0, 0, 1, 1, 1, 1, 4, vertex3f, spritetexcoord2f, NULL, NULL, NULL, NULL, 2, polygonelement3i, polygonelement3s, false, false); R_DrawCustomSurface(r_editlights_sprselection, &identitymatrix, MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_NOCULLFACE, 0, 4, 0, 2, false, false); // VorteX todo: add normalmode/realtime mode light overlay sprites? } } void R_Shadow_DrawLightSprites(void) { size_t lightindex; dlight_t *light; size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked for (lightindex = 0;lightindex < range;lightindex++) { light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (light) R_MeshQueue_AddTransparent(light->origin, R_Shadow_DrawLightSprite_TransparentCallback, (entity_render_t *)light, 5, &light->rtlight); } if (!r_editlights_lockcursor) R_MeshQueue_AddTransparent(r_editlights_cursorlocation, R_Shadow_DrawCursor_TransparentCallback, NULL, 0, NULL); } int R_Shadow_GetRTLightInfo(unsigned int lightindex, float *origin, float *radius, float *color) { unsigned int range; dlight_t *light; rtlight_t *rtlight; range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); if (lightindex >= range) return -1; light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (!light) return 0; rtlight = &light->rtlight; //if (!(rtlight->flags & flag)) // return 0; VectorCopy(rtlight->shadoworigin, origin); *radius = rtlight->radius; VectorCopy(rtlight->color, color); return 1; } void R_Shadow_SelectLightInView(void) { float bestrating, rating, temp[3]; dlight_t *best; size_t lightindex; dlight_t *light; size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked best = NULL; bestrating = 0; if (r_editlights_lockcursor) return; for (lightindex = 0;lightindex < range;lightindex++) { light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (!light) continue; VectorSubtract(light->origin, r_refdef.view.origin, temp); rating = (DotProduct(temp, r_refdef.view.forward) / sqrt(DotProduct(temp, temp))); if (rating >= 0.95) { rating /= (1 + 0.0625f * sqrt(DotProduct(temp, temp))); if (bestrating < rating && CL_TraceLine(light->origin, r_refdef.view.origin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction == 1.0f) { bestrating = rating; best = light; } } } R_Shadow_SelectLight(best); } void R_Shadow_LoadWorldLights(void) { int n, a, style, shadow, flags; char tempchar, *lightsstring, *s, *t, name[MAX_QPATH], cubemapname[MAX_QPATH]; float origin[3], radius, color[3], angles[3], corona, coronasizescale, ambientscale, diffusescale, specularscale; if (cl.worldmodel == NULL) { Con_Print("No map loaded.\n"); return; } dpsnprintf(name, sizeof(name), "%s.rtlights", cl.worldnamenoextension); lightsstring = (char *)FS_LoadFile(name, tempmempool, false, NULL); if (lightsstring) { s = lightsstring; n = 0; while (*s) { t = s; /* shadow = true; for (;COM_Parse(t, true) && strcmp( if (COM_Parse(t, true)) { if (com_token[0] == '!') { shadow = false; origin[0] = atof(com_token+1); } else origin[0] = atof(com_token); if (Com_Parse(t } */ t = s; while (*s && *s != '\n' && *s != '\r') s++; if (!*s) break; tempchar = *s; shadow = true; // check for modifier flags if (*t == '!') { shadow = false; t++; } *s = 0; #if _MSC_VER >= 1400 #define sscanf sscanf_s #endif cubemapname[sizeof(cubemapname)-1] = 0; #if MAX_QPATH != 128 #error update this code if MAX_QPATH changes #endif 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 #if _MSC_VER >= 1400 , sizeof(cubemapname) #endif , &corona, &angles[0], &angles[1], &angles[2], &coronasizescale, &ambientscale, &diffusescale, &specularscale, &flags); *s = tempchar; if (a < 18) flags = LIGHTFLAG_REALTIMEMODE; if (a < 17) specularscale = 1; if (a < 16) diffusescale = 1; if (a < 15) ambientscale = 0; if (a < 14) coronasizescale = 0.25f; if (a < 13) VectorClear(angles); if (a < 10) corona = 0; if (a < 9 || !strcmp(cubemapname, "\"\"")) cubemapname[0] = 0; // remove quotes on cubemapname if (cubemapname[0] == '"' && cubemapname[strlen(cubemapname) - 1] == '"') { size_t namelen; namelen = strlen(cubemapname) - 2; memmove(cubemapname, cubemapname + 1, namelen); cubemapname[namelen] = '\0'; } if (a < 8) { 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); break; } R_Shadow_UpdateWorldLight(R_Shadow_NewWorldLight(), origin, angles, color, radius, corona, style, shadow, cubemapname, coronasizescale, ambientscale, diffusescale, specularscale, flags); if (*s == '\r') s++; if (*s == '\n') s++; n++; } if (*s) Con_Printf("invalid rtlights file \"%s\"\n", name); Mem_Free(lightsstring); } } void R_Shadow_SaveWorldLights(void) { size_t lightindex; dlight_t *light; size_t bufchars, bufmaxchars; char *buf, *oldbuf; char name[MAX_QPATH]; char line[MAX_INPUTLINE]; size_t range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked, assuming the dpsnprintf mess doesn't screw it up... // I hate lines which are 3 times my screen size :( --blub if (!range) return; if (cl.worldmodel == NULL) { Con_Print("No map loaded.\n"); return; } dpsnprintf(name, sizeof(name), "%s.rtlights", cl.worldnamenoextension); bufchars = bufmaxchars = 0; buf = NULL; for (lightindex = 0;lightindex < range;lightindex++) { light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (!light) continue; if (light->coronasizescale != 0.25f || light->ambientscale != 0 || light->diffusescale != 1 || light->specularscale != 1 || light->flags != LIGHTFLAG_REALTIMEMODE) 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); else if (light->cubemapname[0] || light->corona || light->angles[0] || light->angles[1] || light->angles[2]) 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]); else 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); if (bufchars + strlen(line) > bufmaxchars) { bufmaxchars = bufchars + strlen(line) + 2048; oldbuf = buf; buf = (char *)Mem_Alloc(tempmempool, bufmaxchars); if (oldbuf) { if (bufchars) memcpy(buf, oldbuf, bufchars); Mem_Free(oldbuf); } } if (strlen(line)) { memcpy(buf + bufchars, line, strlen(line)); bufchars += strlen(line); } } if (bufchars) FS_WriteFile(name, buf, (fs_offset_t)bufchars); if (buf) Mem_Free(buf); } void R_Shadow_LoadLightsFile(void) { int n, a, style; char tempchar, *lightsstring, *s, *t, name[MAX_QPATH]; float origin[3], radius, color[3], subtract, spotdir[3], spotcone, falloff, distbias; if (cl.worldmodel == NULL) { Con_Print("No map loaded.\n"); return; } dpsnprintf(name, sizeof(name), "%s.lights", cl.worldnamenoextension); lightsstring = (char *)FS_LoadFile(name, tempmempool, false, NULL); if (lightsstring) { s = lightsstring; n = 0; while (*s) { t = s; while (*s && *s != '\n' && *s != '\r') s++; if (!*s) break; tempchar = *s; *s = 0; 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); *s = tempchar; if (a < 14) { 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); break; } radius = sqrt(DotProduct(color, color) / (falloff * falloff * 8192.0f * 8192.0f)); radius = bound(15, radius, 4096); VectorScale(color, (2.0f / (8388608.0f)), color); R_Shadow_UpdateWorldLight(R_Shadow_NewWorldLight(), origin, vec3_origin, color, radius, 0, style, true, NULL, 0.25, 0, 1, 1, LIGHTFLAG_REALTIMEMODE); if (*s == '\r') s++; if (*s == '\n') s++; n++; } if (*s) Con_Printf("invalid lights file \"%s\"\n", name); Mem_Free(lightsstring); } } // tyrlite/hmap2 light types in the delay field typedef enum lighttype_e {LIGHTTYPE_MINUSX, LIGHTTYPE_RECIPX, LIGHTTYPE_RECIPXX, LIGHTTYPE_NONE, LIGHTTYPE_SUN, LIGHTTYPE_MINUSXX} lighttype_t; void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void) { int entnum; int style; int islight; int skin; int pflags; //int effects; int type; int n; char *entfiledata; const char *data; float origin[3], angles[3], radius, color[3], light[4], fadescale, lightscale, originhack[3], overridecolor[3], vec[4]; char key[256], value[MAX_INPUTLINE]; if (cl.worldmodel == NULL) { Con_Print("No map loaded.\n"); return; } // try to load a .ent file first dpsnprintf(key, sizeof(key), "%s.ent", cl.worldnamenoextension); data = entfiledata = (char *)FS_LoadFile(key, tempmempool, true, NULL); // and if that is not found, fall back to the bsp file entity string if (!data) data = cl.worldmodel->brush.entities; if (!data) return; for (entnum = 0;COM_ParseToken_Simple(&data, false, false) && com_token[0] == '{';entnum++) { type = LIGHTTYPE_MINUSX; origin[0] = origin[1] = origin[2] = 0; originhack[0] = originhack[1] = originhack[2] = 0; angles[0] = angles[1] = angles[2] = 0; color[0] = color[1] = color[2] = 1; light[0] = light[1] = light[2] = 1;light[3] = 300; overridecolor[0] = overridecolor[1] = overridecolor[2] = 1; fadescale = 1; lightscale = 1; style = 0; skin = 0; pflags = 0; //effects = 0; islight = false; while (1) { if (!COM_ParseToken_Simple(&data, false, false)) break; // error if (com_token[0] == '}') break; // end of entity if (com_token[0] == '_') strlcpy(key, com_token + 1, sizeof(key)); else strlcpy(key, com_token, sizeof(key)); while (key[strlen(key)-1] == ' ') // remove trailing spaces key[strlen(key)-1] = 0; if (!COM_ParseToken_Simple(&data, false, false)) break; // error strlcpy(value, com_token, sizeof(value)); // now that we have the key pair worked out... if (!strcmp("light", key)) { n = sscanf(value, "%f %f %f %f", &vec[0], &vec[1], &vec[2], &vec[3]); if (n == 1) { // quake light[0] = vec[0] * (1.0f / 256.0f); light[1] = vec[0] * (1.0f / 256.0f); light[2] = vec[0] * (1.0f / 256.0f); light[3] = vec[0]; } else if (n == 4) { // halflife light[0] = vec[0] * (1.0f / 255.0f); light[1] = vec[1] * (1.0f / 255.0f); light[2] = vec[2] * (1.0f / 255.0f); light[3] = vec[3]; } } else if (!strcmp("delay", key)) type = atoi(value); else if (!strcmp("origin", key)) sscanf(value, "%f %f %f", &origin[0], &origin[1], &origin[2]); else if (!strcmp("angle", key)) angles[0] = 0, angles[1] = atof(value), angles[2] = 0; else if (!strcmp("angles", key)) sscanf(value, "%f %f %f", &angles[0], &angles[1], &angles[2]); else if (!strcmp("color", key)) sscanf(value, "%f %f %f", &color[0], &color[1], &color[2]); else if (!strcmp("wait", key)) fadescale = atof(value); else if (!strcmp("classname", key)) { if (!strncmp(value, "light", 5)) { islight = true; if (!strcmp(value, "light_fluoro")) { originhack[0] = 0; originhack[1] = 0; originhack[2] = 0; overridecolor[0] = 1; overridecolor[1] = 1; overridecolor[2] = 1; } if (!strcmp(value, "light_fluorospark")) { originhack[0] = 0; originhack[1] = 0; originhack[2] = 0; overridecolor[0] = 1; overridecolor[1] = 1; overridecolor[2] = 1; } if (!strcmp(value, "light_globe")) { originhack[0] = 0; originhack[1] = 0; originhack[2] = 0; overridecolor[0] = 1; overridecolor[1] = 0.8; overridecolor[2] = 0.4; } if (!strcmp(value, "light_flame_large_yellow")) { originhack[0] = 0; originhack[1] = 0; originhack[2] = 0; overridecolor[0] = 1; overridecolor[1] = 0.5; overridecolor[2] = 0.1; } if (!strcmp(value, "light_flame_small_yellow")) { originhack[0] = 0; originhack[1] = 0; originhack[2] = 0; overridecolor[0] = 1; overridecolor[1] = 0.5; overridecolor[2] = 0.1; } if (!strcmp(value, "light_torch_small_white")) { originhack[0] = 0; originhack[1] = 0; originhack[2] = 0; overridecolor[0] = 1; overridecolor[1] = 0.5; overridecolor[2] = 0.1; } if (!strcmp(value, "light_torch_small_walltorch")) { originhack[0] = 0; originhack[1] = 0; originhack[2] = 0; overridecolor[0] = 1; overridecolor[1] = 0.5; overridecolor[2] = 0.1; } } } else if (!strcmp("style", key)) style = atoi(value); else if (!strcmp("skin", key)) skin = (int)atof(value); else if (!strcmp("pflags", key)) pflags = (int)atof(value); //else if (!strcmp("effects", key)) // effects = (int)atof(value); else if (cl.worldmodel->type == mod_brushq3) { if (!strcmp("scale", key)) lightscale = atof(value); if (!strcmp("fade", key)) fadescale = atof(value); } } if (!islight) continue; if (lightscale <= 0) lightscale = 1; if (fadescale <= 0) fadescale = 1; if (color[0] == color[1] && color[0] == color[2]) { color[0] *= overridecolor[0]; color[1] *= overridecolor[1]; color[2] *= overridecolor[2]; } radius = light[3] * r_editlights_quakelightsizescale.value * lightscale / fadescale; color[0] = color[0] * light[0]; color[1] = color[1] * light[1]; color[2] = color[2] * light[2]; switch (type) { case LIGHTTYPE_MINUSX: break; case LIGHTTYPE_RECIPX: radius *= 2; VectorScale(color, (1.0f / 16.0f), color); break; case LIGHTTYPE_RECIPXX: radius *= 2; VectorScale(color, (1.0f / 16.0f), color); break; default: case LIGHTTYPE_NONE: break; case LIGHTTYPE_SUN: break; case LIGHTTYPE_MINUSXX: break; } VectorAdd(origin, originhack, origin); if (radius >= 1) 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); } if (entfiledata) Mem_Free(entfiledata); } void R_Shadow_SetCursorLocationForView(void) { vec_t dist, push; vec3_t dest, endpos; trace_t trace; VectorMA(r_refdef.view.origin, r_editlights_cursordistance.value, r_refdef.view.forward, dest); trace = CL_TraceLine(r_refdef.view.origin, dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false); if (trace.fraction < 1) { dist = trace.fraction * r_editlights_cursordistance.value; push = r_editlights_cursorpushback.value; if (push > dist) push = dist; push = -push; VectorMA(trace.endpos, push, r_refdef.view.forward, endpos); VectorMA(endpos, r_editlights_cursorpushoff.value, trace.plane.normal, endpos); } else { VectorClear( endpos ); } r_editlights_cursorlocation[0] = floor(endpos[0] / r_editlights_cursorgrid.value + 0.5f) * r_editlights_cursorgrid.value; r_editlights_cursorlocation[1] = floor(endpos[1] / r_editlights_cursorgrid.value + 0.5f) * r_editlights_cursorgrid.value; r_editlights_cursorlocation[2] = floor(endpos[2] / r_editlights_cursorgrid.value + 0.5f) * r_editlights_cursorgrid.value; } void R_Shadow_UpdateWorldLightSelection(void) { if (r_editlights.integer) { R_Shadow_SetCursorLocationForView(); R_Shadow_SelectLightInView(); } else R_Shadow_SelectLight(NULL); } void R_Shadow_EditLights_Clear_f(void) { R_Shadow_ClearWorldLights(); } void R_Shadow_EditLights_Reload_f(void) { if (!cl.worldmodel) return; strlcpy(r_shadow_mapname, cl.worldname, sizeof(r_shadow_mapname)); R_Shadow_ClearWorldLights(); R_Shadow_LoadWorldLights(); if (!Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray)) { R_Shadow_LoadLightsFile(); if (!Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray)) R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(); } } void R_Shadow_EditLights_Save_f(void) { if (!cl.worldmodel) return; R_Shadow_SaveWorldLights(); } void R_Shadow_EditLights_ImportLightEntitiesFromMap_f(void) { R_Shadow_ClearWorldLights(); R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(); } void R_Shadow_EditLights_ImportLightsFile_f(void) { R_Shadow_ClearWorldLights(); R_Shadow_LoadLightsFile(); } void R_Shadow_EditLights_Spawn_f(void) { vec3_t color; if (!r_editlights.integer) { Con_Print("Cannot spawn light when not in editing mode. Set r_editlights to 1.\n"); return; } if (Cmd_Argc() != 1) { Con_Print("r_editlights_spawn does not take parameters\n"); return; } color[0] = color[1] = color[2] = 1; R_Shadow_UpdateWorldLight(R_Shadow_NewWorldLight(), r_editlights_cursorlocation, vec3_origin, color, 200, 0, 0, true, NULL, 0.25, 0, 1, 1, LIGHTFLAG_REALTIMEMODE); } void R_Shadow_EditLights_Edit_f(void) { vec3_t origin, angles, color; vec_t radius, corona, coronasizescale, ambientscale, diffusescale, specularscale; int style, shadows, flags, normalmode, realtimemode; char cubemapname[MAX_INPUTLINE]; if (!r_editlights.integer) { Con_Print("Cannot spawn light when not in editing mode. Set r_editlights to 1.\n"); return; } if (!r_shadow_selectedlight) { Con_Print("No selected light.\n"); return; } VectorCopy(r_shadow_selectedlight->origin, origin); VectorCopy(r_shadow_selectedlight->angles, angles); VectorCopy(r_shadow_selectedlight->color, color); radius = r_shadow_selectedlight->radius; style = r_shadow_selectedlight->style; if (r_shadow_selectedlight->cubemapname) strlcpy(cubemapname, r_shadow_selectedlight->cubemapname, sizeof(cubemapname)); else cubemapname[0] = 0; shadows = r_shadow_selectedlight->shadow; corona = r_shadow_selectedlight->corona; coronasizescale = r_shadow_selectedlight->coronasizescale; ambientscale = r_shadow_selectedlight->ambientscale; diffusescale = r_shadow_selectedlight->diffusescale; specularscale = r_shadow_selectedlight->specularscale; flags = r_shadow_selectedlight->flags; normalmode = (flags & LIGHTFLAG_NORMALMODE) != 0; realtimemode = (flags & LIGHTFLAG_REALTIMEMODE) != 0; if (!strcmp(Cmd_Argv(1), "origin")) { if (Cmd_Argc() != 5) { Con_Printf("usage: r_editlights_edit %s x y z\n", Cmd_Argv(1)); return; } origin[0] = atof(Cmd_Argv(2)); origin[1] = atof(Cmd_Argv(3)); origin[2] = atof(Cmd_Argv(4)); } else if (!strcmp(Cmd_Argv(1), "originx")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } origin[0] = atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "originy")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } origin[1] = atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "originz")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } origin[2] = atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "move")) { if (Cmd_Argc() != 5) { Con_Printf("usage: r_editlights_edit %s x y z\n", Cmd_Argv(1)); return; } origin[0] += atof(Cmd_Argv(2)); origin[1] += atof(Cmd_Argv(3)); origin[2] += atof(Cmd_Argv(4)); } else if (!strcmp(Cmd_Argv(1), "movex")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } origin[0] += atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "movey")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } origin[1] += atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "movez")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } origin[2] += atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "angles")) { if (Cmd_Argc() != 5) { Con_Printf("usage: r_editlights_edit %s x y z\n", Cmd_Argv(1)); return; } angles[0] = atof(Cmd_Argv(2)); angles[1] = atof(Cmd_Argv(3)); angles[2] = atof(Cmd_Argv(4)); } else if (!strcmp(Cmd_Argv(1), "anglesx")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } angles[0] = atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "anglesy")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } angles[1] = atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "anglesz")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } angles[2] = atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "color")) { if (Cmd_Argc() != 5) { Con_Printf("usage: r_editlights_edit %s red green blue\n", Cmd_Argv(1)); return; } color[0] = atof(Cmd_Argv(2)); color[1] = atof(Cmd_Argv(3)); color[2] = atof(Cmd_Argv(4)); } else if (!strcmp(Cmd_Argv(1), "radius")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } radius = atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "colorscale")) { if (Cmd_Argc() == 3) { double scale = atof(Cmd_Argv(2)); color[0] *= scale; color[1] *= scale; color[2] *= scale; } else { if (Cmd_Argc() != 5) { Con_Printf("usage: r_editlights_edit %s red green blue (OR grey instead of red green blue)\n", Cmd_Argv(1)); return; } color[0] *= atof(Cmd_Argv(2)); color[1] *= atof(Cmd_Argv(3)); color[2] *= atof(Cmd_Argv(4)); } } else if (!strcmp(Cmd_Argv(1), "radiusscale") || !strcmp(Cmd_Argv(1), "sizescale")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } radius *= atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "style")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } style = atoi(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "cubemap")) { if (Cmd_Argc() > 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } if (Cmd_Argc() == 3) strlcpy(cubemapname, Cmd_Argv(2), sizeof(cubemapname)); else cubemapname[0] = 0; } else if (!strcmp(Cmd_Argv(1), "shadows")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } shadows = Cmd_Argv(2)[0] == 'y' || Cmd_Argv(2)[0] == 'Y' || Cmd_Argv(2)[0] == 't' || atoi(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "corona")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } corona = atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "coronasize")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } coronasizescale = atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "ambient")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } ambientscale = atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "diffuse")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } diffusescale = atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "specular")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } specularscale = atof(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "normalmode")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } normalmode = Cmd_Argv(2)[0] == 'y' || Cmd_Argv(2)[0] == 'Y' || Cmd_Argv(2)[0] == 't' || atoi(Cmd_Argv(2)); } else if (!strcmp(Cmd_Argv(1), "realtimemode")) { if (Cmd_Argc() != 3) { Con_Printf("usage: r_editlights_edit %s value\n", Cmd_Argv(1)); return; } realtimemode = Cmd_Argv(2)[0] == 'y' || Cmd_Argv(2)[0] == 'Y' || Cmd_Argv(2)[0] == 't' || atoi(Cmd_Argv(2)); } else { Con_Print("usage: r_editlights_edit [property] [value]\n"); Con_Print("Selected light's properties:\n"); Con_Printf("Origin : %f %f %f\n", r_shadow_selectedlight->origin[0], r_shadow_selectedlight->origin[1], r_shadow_selectedlight->origin[2]); Con_Printf("Angles : %f %f %f\n", r_shadow_selectedlight->angles[0], r_shadow_selectedlight->angles[1], r_shadow_selectedlight->angles[2]); Con_Printf("Color : %f %f %f\n", r_shadow_selectedlight->color[0], r_shadow_selectedlight->color[1], r_shadow_selectedlight->color[2]); Con_Printf("Radius : %f\n", r_shadow_selectedlight->radius); Con_Printf("Corona : %f\n", r_shadow_selectedlight->corona); Con_Printf("Style : %i\n", r_shadow_selectedlight->style); Con_Printf("Shadows : %s\n", r_shadow_selectedlight->shadow ? "yes" : "no"); Con_Printf("Cubemap : %s\n", r_shadow_selectedlight->cubemapname); Con_Printf("CoronaSize : %f\n", r_shadow_selectedlight->coronasizescale); Con_Printf("Ambient : %f\n", r_shadow_selectedlight->ambientscale); Con_Printf("Diffuse : %f\n", r_shadow_selectedlight->diffusescale); Con_Printf("Specular : %f\n", r_shadow_selectedlight->specularscale); Con_Printf("NormalMode : %s\n", (r_shadow_selectedlight->flags & LIGHTFLAG_NORMALMODE) ? "yes" : "no"); Con_Printf("RealTimeMode : %s\n", (r_shadow_selectedlight->flags & LIGHTFLAG_REALTIMEMODE) ? "yes" : "no"); return; } flags = (normalmode ? LIGHTFLAG_NORMALMODE : 0) | (realtimemode ? LIGHTFLAG_REALTIMEMODE : 0); R_Shadow_UpdateWorldLight(r_shadow_selectedlight, origin, angles, color, radius, corona, style, shadows, cubemapname, coronasizescale, ambientscale, diffusescale, specularscale, flags); } void R_Shadow_EditLights_EditAll_f(void) { size_t lightindex; dlight_t *light, *oldselected; size_t range; if (!r_editlights.integer) { Con_Print("Cannot edit lights when not in editing mode. Set r_editlights to 1.\n"); return; } oldselected = r_shadow_selectedlight; // EditLights doesn't seem to have a "remove" command or something so: range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked for (lightindex = 0;lightindex < range;lightindex++) { light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (!light) continue; R_Shadow_SelectLight(light); R_Shadow_EditLights_Edit_f(); } // return to old selected (to not mess editing once selection is locked) R_Shadow_SelectLight(oldselected); } void R_Shadow_EditLights_DrawSelectedLightProperties(void) { int lightnumber, lightcount; size_t lightindex, range; dlight_t *light; float x, y; char temp[256]; if (!r_editlights.integer) return; x = vid_conwidth.value - 240; y = 5; DrawQ_Pic(x-5, y-5, NULL, 250, 155, 0, 0, 0, 0.75, 0); lightnumber = -1; lightcount = 0; range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked for (lightindex = 0;lightindex < range;lightindex++) { light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); if (!light) continue; if (light == r_shadow_selectedlight) lightnumber = lightindex; lightcount++; } 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; y += 8; if (r_shadow_selectedlight == NULL) return; dpsnprintf(temp, sizeof(temp), "Light #%i properties:", lightnumber);DrawQ_String(x, y, temp, 0, 8, 8, 1, 1, 1, 1, 0, NULL, true, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; 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, FONT_DEFAULT);y += 8; } void R_Shadow_EditLights_ToggleShadow_f(void) { if (!r_editlights.integer) { Con_Print("Cannot spawn light when not in editing mode. Set r_editlights to 1.\n"); return; } if (!r_shadow_selectedlight) { Con_Print("No selected light.\n"); return; } 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); } void R_Shadow_EditLights_ToggleCorona_f(void) { if (!r_editlights.integer) { Con_Print("Cannot spawn light when not in editing mode. Set r_editlights to 1.\n"); return; } if (!r_shadow_selectedlight) { Con_Print("No selected light.\n"); return; } 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); } void R_Shadow_EditLights_Remove_f(void) { if (!r_editlights.integer) { Con_Print("Cannot remove light when not in editing mode. Set r_editlights to 1.\n"); return; } if (!r_shadow_selectedlight) { Con_Print("No selected light.\n"); return; } R_Shadow_FreeWorldLight(r_shadow_selectedlight); r_shadow_selectedlight = NULL; } void R_Shadow_EditLights_Help_f(void) { Con_Print( "Documentation on r_editlights system:\n" "Settings:\n" "r_editlights : enable/disable editing mode\n" "r_editlights_cursordistance : maximum distance of cursor from eye\n" "r_editlights_cursorpushback : push back cursor this far from surface\n" "r_editlights_cursorpushoff : push cursor off surface this far\n" "r_editlights_cursorgrid : snap cursor to grid of this size\n" "r_editlights_quakelightsizescale : imported quake light entity size scaling\n" "Commands:\n" "r_editlights_help : this help\n" "r_editlights_clear : remove all lights\n" "r_editlights_reload : reload .rtlights, .lights file, or entities\n" "r_editlights_lock : lock selection to current light, if already locked - unlock\n" "r_editlights_save : save to .rtlights file\n" "r_editlights_spawn : create a light with default settings\n" "r_editlights_edit command : edit selected light - more documentation below\n" "r_editlights_remove : remove selected light\n" "r_editlights_toggleshadow : toggles on/off selected light's shadow property\n" "r_editlights_importlightentitiesfrommap : reload light entities\n" "r_editlights_importlightsfile : reload .light file (produced by hlight)\n" "Edit commands:\n" "origin x y z : set light location\n" "originx x: set x component of light location\n" "originy y: set y component of light location\n" "originz z: set z component of light location\n" "move x y z : adjust light location\n" "movex x: adjust x component of light location\n" "movey y: adjust y component of light location\n" "movez z: adjust z component of light location\n" "angles x y z : set light angles\n" "anglesx x: set x component of light angles\n" "anglesy y: set y component of light angles\n" "anglesz z: set z component of light angles\n" "color r g b : set color of light (can be brighter than 1 1 1)\n" "radius radius : set radius (size) of light\n" "colorscale grey : multiply color of light (1 does nothing)\n" "colorscale r g b : multiply color of light (1 1 1 does nothing)\n" "radiusscale scale : multiply radius (size) of light (1 does nothing)\n" "sizescale scale : multiply radius (size) of light (1 does nothing)\n" "style style : set lightstyle of light (flickering patterns, switches, etc)\n" "cubemap basename : set filter cubemap of light (not yet supported)\n" "shadows 1/0 : turn on/off shadows\n" "corona n : set corona intensity\n" "coronasize n : set corona size (0-1)\n" "ambient n : set ambient intensity (0-1)\n" "diffuse n : set diffuse intensity (0-1)\n" "specular n : set specular intensity (0-1)\n" "normalmode 1/0 : turn on/off rendering of this light in rtworld 0 mode\n" "realtimemode 1/0 : turn on/off rendering of this light in rtworld 1 mode\n" " : print light properties to console\n" ); } void R_Shadow_EditLights_CopyInfo_f(void) { if (!r_editlights.integer) { Con_Print("Cannot copy light info when not in editing mode. Set r_editlights to 1.\n"); return; } if (!r_shadow_selectedlight) { Con_Print("No selected light.\n"); return; } VectorCopy(r_shadow_selectedlight->angles, r_shadow_bufferlight.angles); VectorCopy(r_shadow_selectedlight->color, r_shadow_bufferlight.color); r_shadow_bufferlight.radius = r_shadow_selectedlight->radius; r_shadow_bufferlight.style = r_shadow_selectedlight->style; if (r_shadow_selectedlight->cubemapname) strlcpy(r_shadow_bufferlight.cubemapname, r_shadow_selectedlight->cubemapname, sizeof(r_shadow_bufferlight.cubemapname)); else r_shadow_bufferlight.cubemapname[0] = 0; r_shadow_bufferlight.shadow = r_shadow_selectedlight->shadow; r_shadow_bufferlight.corona = r_shadow_selectedlight->corona; r_shadow_bufferlight.coronasizescale = r_shadow_selectedlight->coronasizescale; r_shadow_bufferlight.ambientscale = r_shadow_selectedlight->ambientscale; r_shadow_bufferlight.diffusescale = r_shadow_selectedlight->diffusescale; r_shadow_bufferlight.specularscale = r_shadow_selectedlight->specularscale; r_shadow_bufferlight.flags = r_shadow_selectedlight->flags; } void R_Shadow_EditLights_PasteInfo_f(void) { if (!r_editlights.integer) { Con_Print("Cannot paste light info when not in editing mode. Set r_editlights to 1.\n"); return; } if (!r_shadow_selectedlight) { Con_Print("No selected light.\n"); return; } 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); } void R_Shadow_EditLights_Lock_f(void) { if (!r_editlights.integer) { Con_Print("Cannot lock on light when not in editing mode. Set r_editlights to 1.\n"); return; } if (r_editlights_lockcursor) { r_editlights_lockcursor = false; return; } if (!r_shadow_selectedlight) { Con_Print("No selected light to lock on.\n"); return; } r_editlights_lockcursor = true; } void R_Shadow_EditLights_Init(void) { Cvar_RegisterVariable(&r_editlights); Cvar_RegisterVariable(&r_editlights_cursordistance); Cvar_RegisterVariable(&r_editlights_cursorpushback); Cvar_RegisterVariable(&r_editlights_cursorpushoff); Cvar_RegisterVariable(&r_editlights_cursorgrid); Cvar_RegisterVariable(&r_editlights_quakelightsizescale); Cmd_AddCommand("r_editlights_help", R_Shadow_EditLights_Help_f, "prints documentation on console commands and variables in rtlight editing system"); Cmd_AddCommand("r_editlights_clear", R_Shadow_EditLights_Clear_f, "removes all world lights (let there be darkness!)"); 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)"); Cmd_AddCommand("r_editlights_save", R_Shadow_EditLights_Save_f, "save .rtlights file for current level"); Cmd_AddCommand("r_editlights_spawn", R_Shadow_EditLights_Spawn_f, "creates a light with default properties (let there be light!)"); Cmd_AddCommand("r_editlights_edit", R_Shadow_EditLights_Edit_f, "changes a property on the selected light"); 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)"); Cmd_AddCommand("r_editlights_remove", R_Shadow_EditLights_Remove_f, "remove selected light"); Cmd_AddCommand("r_editlights_toggleshadow", R_Shadow_EditLights_ToggleShadow_f, "toggle on/off the shadow option on the selected light"); Cmd_AddCommand("r_editlights_togglecorona", R_Shadow_EditLights_ToggleCorona_f, "toggle on/off the corona option on the selected light"); Cmd_AddCommand("r_editlights_importlightentitiesfrommap", R_Shadow_EditLights_ImportLightEntitiesFromMap_f, "load lights from .ent file or map entities (ignoring .rtlights or .lights file)"); Cmd_AddCommand("r_editlights_importlightsfile", R_Shadow_EditLights_ImportLightsFile_f, "load lights from .lights file (ignoring .rtlights or .ent files and map entities)"); Cmd_AddCommand("r_editlights_copyinfo", R_Shadow_EditLights_CopyInfo_f, "store a copy of all properties (except origin) of the selected light"); 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)"); Cmd_AddCommand("r_editlights_lock", R_Shadow_EditLights_Lock_f, "lock selection to current light, if already locked - unlock"); } /* ============================================================================= LIGHT SAMPLING ============================================================================= */ void R_CompleteLightPoint(vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const vec3_t p, const int flags) { int i, numlights, flag; float f, relativepoint[3], dist, dist2, lightradius2; rtlight_t *light; dlight_t *dlight; VectorClear(diffusecolor); VectorClear(diffusenormal); if (flags & LP_LIGHTMAP) { if (!r_fullbright.integer && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.LightPoint) { ambientcolor[0] = ambientcolor[1] = ambientcolor[2] = r_refdef.scene.ambient; r_refdef.scene.worldmodel->brush.LightPoint(r_refdef.scene.worldmodel, p, ambientcolor, diffusecolor, diffusenormal); } else VectorSet(ambientcolor, 1, 1, 1); } if (flags & LP_RTWORLD) { flag = r_refdef.scene.rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE; numlights = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); for (i = 0; i < numlights; i++) { dlight = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, i); if (!dlight) continue; light = &dlight->rtlight; if (!(light->flags & flag)) continue; // sample lightradius2 = light->radius * light->radius; VectorSubtract(light->shadoworigin, p, relativepoint); dist2 = VectorLength2(relativepoint); if (dist2 >= lightradius2) continue; dist = sqrt(dist2) / light->radius; f = dist < 1 ? (r_shadow_lightintensityscale.value * ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist))) : 0; if (f <= 0) continue; // todo: add to both ambient and diffuse if (!light->shadow || CL_TraceLine(p, light->shadoworigin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction == 1) VectorMA(ambientcolor, f, light->currentcolor, ambientcolor); } } if (flags & LP_DYNLIGHT) { // sample dlights for (i = 0;i < r_refdef.scene.numlights;i++) { light = r_refdef.scene.lights[i]; // sample lightradius2 = light->radius * light->radius; VectorSubtract(light->shadoworigin, p, relativepoint); dist2 = VectorLength2(relativepoint); if (dist2 >= lightradius2) continue; dist = sqrt(dist2) / light->radius; f = dist < 1 ? (r_shadow_lightintensityscale.value * ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist))) : 0; if (f <= 0) continue; // todo: add to both ambient and diffuse if (!light->shadow || CL_TraceLine(p, light->shadoworigin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction == 1) VectorMA(ambientcolor, f, light->color, ambientcolor); } } }