]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - r_shadow.c
added r_transparent_sortsurfacesbynearest cvar (default 1), this
[xonotic/darkplaces.git] / r_shadow.c
index d479f125193f8a71950c8a65a6d966ac041fdcb9..adec83e15b337ff8a42e49981fdb8679e53a3be1 100644 (file)
@@ -146,7 +146,7 @@ demonstrated by the game Doom3.
 extern LPDIRECT3DDEVICE9 vid_d3d9dev;
 #endif
 
-extern void R_Shadow_EditLights_Init(void);
+static void R_Shadow_EditLights_Init(void);
 
 typedef enum r_shadow_rendermode_e
 {
@@ -244,8 +244,8 @@ 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_shadowmap2ddepthbuffer;
+rtexture_t *r_shadow_shadowmap2ddepthtexture;
 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
@@ -255,26 +255,26 @@ GLuint r_shadow_prepasslightingdiffusespecularfbo;
 GLuint r_shadow_prepasslightingdiffusefbo;
 int r_shadow_prepass_width;
 int r_shadow_prepass_height;
-rtexture_t *r_shadow_prepassgeometrydepthtexture;
-rtexture_t *r_shadow_prepassgeometrydepthcolortexture;
+rtexture_t *r_shadow_prepassgeometrydepthbuffer;
 rtexture_t *r_shadow_prepassgeometrynormalmaptexture;
 rtexture_t *r_shadow_prepasslightingdiffusetexture;
 rtexture_t *r_shadow_prepasslightingspeculartexture;
 
+// keep track of the provided framebuffer info
+static int r_shadow_fb_fbo;
+static rtexture_t *r_shadow_fb_depthtexture;
+static rtexture_t *r_shadow_fb_colortexture;
+
 // 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", "4", "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)"};
@@ -320,25 +320,23 @@ cvar_t r_shadow_polygonfactor = {0, "r_shadow_polygonfactor", "0", "how much to
 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_shadow_bouncegrid = {CVAR_SAVE, "r_shadow_bouncegrid", "0", "perform particle tracing for indirect lighting (Global Illumination / radiosity) using a 3D texture covering the scene, only active on levels with realtime lights active (r_shadow_realtime_world is usually required for these)"};
-cvar_t r_shadow_bouncegrid_airstepmax = {CVAR_SAVE, "r_shadow_bouncegrid_airstepmax", "1024", "maximum number of photon accumulation contributions for one photon"};
-cvar_t r_shadow_bouncegrid_airstepsize = {CVAR_SAVE, "r_shadow_bouncegrid_airstepsize", "64", "maximum spacing of photon accumulation through the air"};
 cvar_t r_shadow_bouncegrid_bounceanglediffuse = {CVAR_SAVE, "r_shadow_bouncegrid_bounceanglediffuse", "0", "use random bounce direction rather than true reflection, makes some corner areas dark"};
 cvar_t r_shadow_bouncegrid_directionalshading = {CVAR_SAVE, "r_shadow_bouncegrid_directionalshading", "0", "use diffuse shading rather than ambient, 3D texture becomes 8x as many pixels to hold the additional data"};
 cvar_t r_shadow_bouncegrid_dlightparticlemultiplier = {CVAR_SAVE, "r_shadow_bouncegrid_dlightparticlemultiplier", "0", "if set to a high value like 16 this can make dlights look great, but 0 is recommended for performance reasons"};
 cvar_t r_shadow_bouncegrid_hitmodels = {CVAR_SAVE, "r_shadow_bouncegrid_hitmodels", "0", "enables hitting character model geometry (SLOW)"};
-cvar_t r_shadow_bouncegrid_includedirectlighting = {CVAR_SAVE, "r_shadow_bouncegrid_incluedirectlighting", "0", "allows direct lighting to be recorded, not just indirect (gives an effect somewhat like r_shadow_realtime_world_lightmaps)"};
+cvar_t r_shadow_bouncegrid_includedirectlighting = {CVAR_SAVE, "r_shadow_bouncegrid_includedirectlighting", "0", "allows direct lighting to be recorded, not just indirect (gives an effect somewhat like r_shadow_realtime_world_lightmaps)"};
 cvar_t r_shadow_bouncegrid_intensity = {CVAR_SAVE, "r_shadow_bouncegrid_intensity", "4", "overall brightness of bouncegrid texture"};
-cvar_t r_shadow_bouncegrid_lightradiusscale = {CVAR_SAVE, "r_shadow_bouncegrid_lightradiusscale", "10", "particles stop at this fraction of light radius (can be more than 1)"};
-cvar_t r_shadow_bouncegrid_maxbounce = {CVAR_SAVE, "r_shadow_bouncegrid_maxbounce", "5", "maximum number of bounces for a particle (minimum is 1)"};
-cvar_t r_shadow_bouncegrid_particlebounceintensity = {CVAR_SAVE, "r_shadow_bouncegrid_particlebounceintensity", "4", "amount of energy carried over after each bounce, this is a multiplier of texture color and the result is clamped to 1 or less, to prevent adding energy on each bounce"};
+cvar_t r_shadow_bouncegrid_lightradiusscale = {CVAR_SAVE, "r_shadow_bouncegrid_lightradiusscale", "4", "particles stop at this fraction of light radius (can be more than 1)"};
+cvar_t r_shadow_bouncegrid_maxbounce = {CVAR_SAVE, "r_shadow_bouncegrid_maxbounce", "2", "maximum number of bounces for a particle (minimum is 0)"};
+cvar_t r_shadow_bouncegrid_particlebounceintensity = {CVAR_SAVE, "r_shadow_bouncegrid_particlebounceintensity", "1", "amount of energy carried over after each bounce, this is a multiplier of texture color and the result is clamped to 1 or less, to prevent adding energy on each bounce"};
 cvar_t r_shadow_bouncegrid_particleintensity = {CVAR_SAVE, "r_shadow_bouncegrid_particleintensity", "1", "brightness of particles contributing to bouncegrid texture"};
 cvar_t r_shadow_bouncegrid_photons = {CVAR_SAVE, "r_shadow_bouncegrid_photons", "2000", "total photons to shoot per update, divided proportionately between lights"};
-cvar_t r_shadow_bouncegrid_spacingx = {CVAR_SAVE, "r_shadow_bouncegrid_spacingx", "64", "unit size of bouncegrid pixel on X axis"};
-cvar_t r_shadow_bouncegrid_spacingy = {CVAR_SAVE, "r_shadow_bouncegrid_spacingy", "64", "unit size of bouncegrid pixel on Y axis"};
-cvar_t r_shadow_bouncegrid_spacingz = {CVAR_SAVE, "r_shadow_bouncegrid_spacingz", "64", "unit size of bouncegrid pixel on Z axis"};
+cvar_t r_shadow_bouncegrid_spacing = {CVAR_SAVE, "r_shadow_bouncegrid_spacing", "64", "unit size of bouncegrid pixel"};
 cvar_t r_shadow_bouncegrid_stablerandom = {CVAR_SAVE, "r_shadow_bouncegrid_stablerandom", "1", "make particle distribution consistent from frame to frame"};
 cvar_t r_shadow_bouncegrid_static = {CVAR_SAVE, "r_shadow_bouncegrid_static", "1", "use static radiosity solution (high quality) rather than dynamic (splotchy)"};
 cvar_t r_shadow_bouncegrid_static_directionalshading = {CVAR_SAVE, "r_shadow_bouncegrid_static_directionalshading", "1", "whether to use directionalshading when in static mode"};
+cvar_t r_shadow_bouncegrid_static_lightradiusscale = {CVAR_SAVE, "r_shadow_bouncegrid_static_lightradiusscale", "10", "particles stop at this fraction of light radius (can be more than 1) when in static mode"};
+cvar_t r_shadow_bouncegrid_static_maxbounce = {CVAR_SAVE, "r_shadow_bouncegrid_static_maxbounce", "5", "maximum number of bounces for a particle (minimum is 0) in static mode"};
 cvar_t r_shadow_bouncegrid_static_photons = {CVAR_SAVE, "r_shadow_bouncegrid_static_photons", "25000", "photons value to use when in static mode"};
 cvar_t r_shadow_bouncegrid_updateinterval = {CVAR_SAVE, "r_shadow_bouncegrid_updateinterval", "0", "update bouncegrid texture once per this many seconds, useful values are 0, 0.05, or 1000000"};
 cvar_t r_shadow_bouncegrid_x = {CVAR_SAVE, "r_shadow_bouncegrid_x", "64", "maximum texture size of bouncegrid on X axis"};
@@ -372,8 +370,6 @@ typedef struct r_shadow_bouncegrid_settings_s
        int photons;
        float spacing[3];
        int stablerandom;
-       float airstepmax;
-       float airstepsize;
 }
 r_shadow_bouncegrid_settings_t;
 
@@ -426,7 +422,7 @@ skinframe_t *r_editlights_sprcubemaplight;
 skinframe_t *r_editlights_sprcubemapnoshadowlight;
 skinframe_t *r_editlights_sprselection;
 
-void R_Shadow_SetShadowMode(void)
+static 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;
@@ -445,7 +441,9 @@ void R_Shadow_SetShadowMode(void)
                case RENDERPATH_GL20:
                        if(r_shadow_shadowmapfilterquality < 0)
                        {
-                               if(vid.support.amd_texture_texture4 || vid.support.arb_texture_gather)
+                               if (!r_fb.usedepthtextures)
+                                       r_shadow_shadowmappcf = 1;
+                               else 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")) 
                                {
@@ -476,6 +474,8 @@ void R_Shadow_SetShadowMode(void)
                                        break;
                                }
                        }
+                       if (!r_fb.usedepthtextures)
+                               r_shadow_shadowmapsampler = false;
                        r_shadow_shadowmode = R_SHADOW_SHADOWMODE_SHADOWMAP2D;
                        break;
                case RENDERPATH_D3D9:
@@ -486,10 +486,9 @@ void R_Shadow_SetShadowMode(void)
                        r_shadow_shadowmappcf = 1;
                        r_shadow_shadowmode = R_SHADOW_SHADOWMODE_SHADOWMAP2D;
                        break;
-               case RENDERPATH_GL13:
-                       break;
                case RENDERPATH_GL11:
-                       break;
+               case RENDERPATH_GL13:
+               case RENDERPATH_GLES1:
                case RENDERPATH_GLES2:
                        break;
                }
@@ -507,7 +506,7 @@ qboolean R_Shadow_ShadowMappingEnabled(void)
        }
 }
 
-void R_Shadow_FreeShadowMaps(void)
+static void R_Shadow_FreeShadowMaps(void)
 {
        R_Shadow_SetShadowMode();
 
@@ -515,20 +514,20 @@ void R_Shadow_FreeShadowMaps(void)
 
        r_shadow_fbo2d = 0;
 
-       if (r_shadow_shadowmap2dtexture)
-               R_FreeTexture(r_shadow_shadowmap2dtexture);
-       r_shadow_shadowmap2dtexture = NULL;
+       if (r_shadow_shadowmap2ddepthtexture)
+               R_FreeTexture(r_shadow_shadowmap2ddepthtexture);
+       r_shadow_shadowmap2ddepthtexture = NULL;
 
-       if (r_shadow_shadowmap2dcolortexture)
-               R_FreeTexture(r_shadow_shadowmap2dcolortexture);
-       r_shadow_shadowmap2dcolortexture = NULL;
+       if (r_shadow_shadowmap2ddepthbuffer)
+               R_FreeTexture(r_shadow_shadowmap2ddepthbuffer);
+       r_shadow_shadowmap2ddepthbuffer = NULL;
 
        if (r_shadow_shadowmapvsdcttexture)
                R_FreeTexture(r_shadow_shadowmapvsdcttexture);
        r_shadow_shadowmapvsdcttexture = NULL;
 }
 
-void r_shadow_start(void)
+static void r_shadow_start(void)
 {
        // allocate vertex processing arrays
        r_shadow_bouncegridpixels = NULL;
@@ -540,8 +539,8 @@ void r_shadow_start(void)
        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_shadowmap2ddepthtexture = NULL;
+       r_shadow_shadowmap2ddepthbuffer = NULL;
        r_shadow_shadowmapvsdcttexture = NULL;
        r_shadow_shadowmapmaxsize = 0;
        r_shadow_shadowmapsize = 0;
@@ -594,7 +593,7 @@ void r_shadow_start(void)
 }
 
 static void R_Shadow_FreeDeferred(void);
-void r_shadow_shutdown(void)
+static void r_shadow_shutdown(void)
 {
        CHECKGLERROR
        R_Shadow_UncompileWorldLights();
@@ -677,7 +676,7 @@ void r_shadow_shutdown(void)
                Mem_Free(r_shadow_buffer_lighttrispvs);
 }
 
-void r_shadow_newmap(void)
+static void r_shadow_newmap(void)
 {
        if (r_shadow_bouncegridtexture) R_FreeTexture(r_shadow_bouncegridtexture);r_shadow_bouncegridtexture = NULL;
        if (r_shadow_lightcorona)                 R_SkinFrame_MarkUsed(r_shadow_lightcorona);
@@ -699,8 +698,6 @@ void R_Shadow_Init(void)
        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);
@@ -744,8 +741,6 @@ void R_Shadow_Init(void)
        Cvar_RegisterVariable(&r_shadow_polygonoffset);
        Cvar_RegisterVariable(&r_shadow_texture3d);
        Cvar_RegisterVariable(&r_shadow_bouncegrid);
-       Cvar_RegisterVariable(&r_shadow_bouncegrid_airstepmax);
-       Cvar_RegisterVariable(&r_shadow_bouncegrid_airstepsize);
        Cvar_RegisterVariable(&r_shadow_bouncegrid_bounceanglediffuse);
        Cvar_RegisterVariable(&r_shadow_bouncegrid_directionalshading);
        Cvar_RegisterVariable(&r_shadow_bouncegrid_dlightparticlemultiplier);
@@ -757,12 +752,12 @@ void R_Shadow_Init(void)
        Cvar_RegisterVariable(&r_shadow_bouncegrid_particlebounceintensity);
        Cvar_RegisterVariable(&r_shadow_bouncegrid_particleintensity);
        Cvar_RegisterVariable(&r_shadow_bouncegrid_photons);
-       Cvar_RegisterVariable(&r_shadow_bouncegrid_spacingx);
-       Cvar_RegisterVariable(&r_shadow_bouncegrid_spacingy);
-       Cvar_RegisterVariable(&r_shadow_bouncegrid_spacingz);
+       Cvar_RegisterVariable(&r_shadow_bouncegrid_spacing);
        Cvar_RegisterVariable(&r_shadow_bouncegrid_stablerandom);
        Cvar_RegisterVariable(&r_shadow_bouncegrid_static);
        Cvar_RegisterVariable(&r_shadow_bouncegrid_static_directionalshading);
+       Cvar_RegisterVariable(&r_shadow_bouncegrid_static_lightradiusscale);
+       Cvar_RegisterVariable(&r_shadow_bouncegrid_static_maxbounce);
        Cvar_RegisterVariable(&r_shadow_bouncegrid_static_photons);
        Cvar_RegisterVariable(&r_shadow_bouncegrid_updateinterval);
        Cvar_RegisterVariable(&r_shadow_bouncegrid_x);
@@ -826,7 +821,7 @@ matrix4x4_t matrix_attenuationz =
        }
 };
 
-void R_Shadow_ResizeShadowArrays(int numvertices, int numtriangles, int vertscale, int triscale)
+static void R_Shadow_ResizeShadowArrays(int numvertices, int numtriangles, int vertscale, int triscale)
 {
        numvertices = ((numvertices + 255) & ~255) * vertscale;
        numtriangles = ((numtriangles + 255) & ~255) * triscale;
@@ -1301,7 +1296,7 @@ void R_Shadow_MarkVolumeFromBox(int firsttriangle, int numtris, const float *inv
        }
 }
 
-qboolean R_Shadow_UseZPass(vec3_t mins, vec3_t maxs)
+static qboolean R_Shadow_UseZPass(vec3_t mins, vec3_t maxs)
 {
 #if 1
        return false;
@@ -1456,7 +1451,7 @@ int R_Shadow_CalcTriangleSideMask(const vec3_t p1, const vec3_t p2, const vec3_t
        return mask;
 }
 
-int R_Shadow_CalcBBoxSideMask(const vec3_t mins, const vec3_t maxs, const matrix4x4_t *worldtolight, const matrix4x4_t *radiustolight, float bias)
+static 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;
@@ -1525,7 +1520,7 @@ int R_Shadow_CalcSphereSideMask(const vec3_t p, float radius, float bias)
     return mask;
 }
 
-int R_Shadow_CullFrustumSides(rtlight_t *rtlight, float size, float border)
+static int R_Shadow_CullFrustumSides(rtlight_t *rtlight, float size, float border)
 {
        int i;
        vec3_t p, n;
@@ -1959,7 +1954,7 @@ void R_Shadow_RenderMode_Begin(void)
        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)
@@ -1988,8 +1983,9 @@ void R_Shadow_RenderMode_Begin(void)
        case RENDERPATH_GLES2:
                r_shadow_lightingrendermode = R_SHADOW_RENDERMODE_LIGHT_GLSL;
                break;
-       case RENDERPATH_GL13:
        case RENDERPATH_GL11:
+       case RENDERPATH_GL13:
+       case RENDERPATH_GLES1:
                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)
@@ -2019,10 +2015,10 @@ void R_Shadow_RenderMode_ActiveLight(const rtlight_t *rtlight)
 
 void R_Shadow_RenderMode_Reset(void)
 {
-       R_Mesh_SetMainRenderTargets();
+       R_Mesh_ResetTextureState();
+       R_Mesh_SetRenderTargets(r_shadow_fb_fbo, r_shadow_fb_depthtexture, r_shadow_fb_colortexture, NULL, NULL, NULL);
        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();
        GL_DepthRange(0, 1);
        GL_DepthTest(true);
        GL_DepthMask(false);
@@ -2034,7 +2030,7 @@ void R_Shadow_RenderMode_Reset(void)
        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_SetupShader_Generic_NoTexture(false, false);
        r_shadow_usingshadowmap2d = false;
        r_shadow_usingshadowmaportho = false;
        R_SetStencil(false, 255, GL_KEEP, GL_KEEP, GL_KEEP, GL_ALWAYS, 128, 255);
@@ -2056,7 +2052,7 @@ void R_Shadow_RenderMode_StencilShadowVolumes(qboolean zpass)
        GL_ColorMask(0, 0, 0, 0);
        GL_PolygonOffset(r_refdef.shadowpolygonfactor, r_refdef.shadowpolygonoffset);CHECKGLERROR
        GL_CullFace(GL_NONE);
-       R_SetupShader_DepthOrShadow();
+       R_SetupShader_DepthOrShadow(false, false);
        r_shadow_rendermode = mode;
        switch(mode)
        {
@@ -2098,49 +2094,31 @@ 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)
+               if (r_shadow_shadowmap2ddepthtexture) return;
+               if (r_fb.usedepthtextures)
                {
-#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;
+                       r_shadow_shadowmap2ddepthtexture = R_LoadTextureShadowMap2D(r_shadow_texturepool, "shadowmap", size*2, size*(vid.support.arb_texture_non_power_of_two ? 3 : 4), r_shadow_shadowmapdepthbits >= 24 ? (r_shadow_shadowmapsampler ? TEXTYPE_SHADOWMAP24_COMP : TEXTYPE_SHADOWMAP24_RAW) : (r_shadow_shadowmapsampler ? TEXTYPE_SHADOWMAP16_COMP : TEXTYPE_SHADOWMAP16_RAW), false);
+                       r_shadow_shadowmap2ddepthbuffer = NULL;
+                       r_shadow_fbo2d = R_Mesh_CreateFramebufferObject(r_shadow_shadowmap2ddepthtexture, NULL, NULL, NULL, NULL);
+               }
+               else
+               {
+                       r_shadow_shadowmap2ddepthtexture = R_LoadTexture2D(r_shadow_texturepool, "shadowmaprendertarget", size*2, size*(vid.support.arb_texture_non_power_of_two ? 3 : 4), NULL, TEXTYPE_COLORBUFFER, TEXF_RENDERTARGET | TEXF_FORCENEAREST | TEXF_CLAMP | TEXF_ALPHA, -1, NULL);
+                       r_shadow_shadowmap2ddepthbuffer = R_LoadTextureRenderBuffer(r_shadow_texturepool, "shadowmap", size*2, size*(vid.support.arb_texture_non_power_of_two ? 3 : 4), r_shadow_shadowmapdepthbits >= 24 ? TEXTYPE_DEPTHBUFFER24 : TEXTYPE_DEPTHBUFFER16);
+                       r_shadow_fbo2d = R_Mesh_CreateFramebufferObject(r_shadow_shadowmap2ddepthbuffer, r_shadow_shadowmap2ddepthtexture, NULL, NULL, NULL);
                }
                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)
+static void R_Shadow_RenderMode_ShadowMap(int side, int clear, int size)
 {
        float nearclip, farclip, bias;
        r_viewport_t viewport;
        int flipped;
-       GLuint fbo = 0;
+       GLuint fbo2d = 0;
        float clearcolor[4];
        nearclip = r_shadow_shadowmapping_nearclip.value / rsurface.rtlight->radius;
        farclip = 1.0f;
@@ -2158,17 +2136,20 @@ void R_Shadow_RenderMode_ShadowMap(int side, int clear, int size)
        // complex unrolled cube approach (more flexible)
        if (r_shadow_shadowmapvsdct && !r_shadow_shadowmapvsdcttexture)
                R_Shadow_MakeVSDCT();
-       if (!r_shadow_shadowmap2dtexture)
+       if (!r_shadow_shadowmap2ddepthtexture)
                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);
+       fbo2d = r_shadow_fbo2d;
+       r_shadow_shadowmap_texturescale[0] = 1.0f / R_TextureWidth(r_shadow_shadowmap2ddepthtexture);
+       r_shadow_shadowmap_texturescale[1] = 1.0f / R_TextureHeight(r_shadow_shadowmap2ddepthtexture);
        r_shadow_rendermode = R_SHADOW_RENDERMODE_SHADOWMAP2D;
 
        R_Mesh_ResetTextureState();
        R_Shadow_RenderMode_Reset();
-       R_Mesh_SetRenderTargets(fbo, r_shadow_shadowmap2dtexture, r_shadow_shadowmap2dcolortexture, NULL, NULL, NULL);
-       R_SetupShader_DepthOrShadow();
+       if (r_shadow_shadowmap2ddepthbuffer)
+               R_Mesh_SetRenderTargets(fbo2d, r_shadow_shadowmap2ddepthbuffer, r_shadow_shadowmap2ddepthtexture, NULL, NULL, NULL);
+       else
+               R_Mesh_SetRenderTargets(fbo2d, r_shadow_shadowmap2ddepthtexture, NULL, NULL, NULL, NULL);
+       R_SetupShader_DepthOrShadow(true, r_shadow_shadowmap2ddepthbuffer != NULL);
        GL_PolygonOffset(r_shadow_shadowmapping_polygonfactor.value, r_shadow_shadowmapping_polygonoffset.value);
        GL_DepthMask(true);
        GL_DepthTest(true);
@@ -2178,12 +2159,24 @@ init_done:
        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;
+       if (r_shadow_shadowmap2ddepthbuffer)
+       {
+               // completely different meaning than in depthtexture approach
+               r_shadow_shadowmap_parameters[1] = 0;
+               r_shadow_shadowmap_parameters[3] = -bias;
+       }
+       Vector4Set(clearcolor, 1,1,1,1);
+       if (r_shadow_shadowmap2ddepthbuffer)
+               GL_ColorMask(1,1,1,1);
+       else
+               GL_ColorMask(0,0,0,0);
        switch(vid.renderpath)
        {
        case RENDERPATH_GL11:
        case RENDERPATH_GL13:
        case RENDERPATH_GL20:
        case RENDERPATH_SOFT:
+       case RENDERPATH_GLES1:
        case RENDERPATH_GLES2:
                GL_CullFace(r_refdef.view.cullface_back);
                // OpenGL lets us scissor larger than the viewport, so go ahead and clear all views at once
@@ -2195,33 +2188,30 @@ init_done:
                        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);
+                       if (clear)
+                       {
+                               if (r_shadow_shadowmap2ddepthbuffer)
+                                       GL_Clear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT, clearcolor, 1.0f, 0);
+                               else
+                                       GL_Clear(GL_DEPTH_BUFFER_BIT, clearcolor, 1.0f, 0);
+                       }
                }
                GL_Scissor(viewport.x, viewport.y, viewport.width, viewport.height);
                break;
        case RENDERPATH_D3D9:
        case RENDERPATH_D3D10:
        case RENDERPATH_D3D11:
-               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)
+               if (clear)
                {
-                       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)
+                       if (r_shadow_shadowmap2ddepthbuffer)
                                GL_Clear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT, clearcolor, 1.0f, 0);
+                       else
+                               GL_Clear(GL_DEPTH_BUFFER_BIT, clearcolor, 1.0f, 0);
                }
                break;
        }
@@ -2230,7 +2220,6 @@ init_done:
 void R_Shadow_RenderMode_Lighting(qboolean stenciltest, qboolean transparent, qboolean shadowmapping)
 {
        R_Mesh_ResetTextureState();
-       R_Mesh_SetMainRenderTargets();
        if (transparent)
        {
                r_shadow_lightscissor[0] = r_refdef.view.viewport.x;
@@ -2291,9 +2280,9 @@ void R_Shadow_RenderMode_DrawDeferredLight(qboolean stenciltest, qboolean shadow
        // stencil is 128 (values other than this mean shadow)
        R_SetStencil(stenciltest, 255, GL_KEEP, GL_KEEP, GL_KEEP, GL_EQUAL, 128, 255);
        if (rsurface.rtlight->specularscale > 0 && r_shadow_gloss.integer > 0)
-               R_Mesh_SetRenderTargets(r_shadow_prepasslightingdiffusespecularfbo, r_shadow_prepassgeometrydepthtexture, r_shadow_prepasslightingdiffusetexture, r_shadow_prepasslightingspeculartexture, NULL, NULL);
+               R_Mesh_SetRenderTargets(r_shadow_prepasslightingdiffusespecularfbo, r_shadow_prepassgeometrydepthbuffer, r_shadow_prepasslightingdiffusetexture, r_shadow_prepasslightingspeculartexture, NULL, NULL);
        else
-               R_Mesh_SetRenderTargets(r_shadow_prepasslightingdiffusefbo, r_shadow_prepassgeometrydepthtexture, r_shadow_prepasslightingdiffusetexture, NULL, NULL, NULL);
+               R_Mesh_SetRenderTargets(r_shadow_prepasslightingdiffusefbo, r_shadow_prepassgeometrydepthbuffer, r_shadow_prepasslightingdiffusetexture, NULL, NULL, NULL);
 
        r_shadow_usingshadowmap2d = shadowmapping;
 
@@ -2312,7 +2301,7 @@ void R_Shadow_RenderMode_DrawDeferredLight(qboolean stenciltest, qboolean shadow
        R_Mesh_Draw(0, 8, 0, 12, NULL, NULL, 0, bboxelements, NULL, 0);
 }
 
-static void R_Shadow_UpdateBounceGridTexture(void)
+void R_Shadow_UpdateBounceGridTexture(void)
 {
 #define MAXBOUNCEGRIDPARTICLESPERLIGHT 1048576
        dlight_t *light;
@@ -2352,6 +2341,7 @@ static void R_Shadow_UpdateBounceGridTexture(void)
        vec3_t lightcolor;
        vec3_t steppos;
        vec3_t stepdelta;
+       vec3_t cullmins, cullmaxs;
        vec_t radius;
        vec_t s;
        vec_t lightintensity;
@@ -2390,6 +2380,7 @@ static void R_Shadow_UpdateBounceGridTexture(void)
                // these renderpaths do not currently have the code to display the bouncegrid, so disable it on them...
        case RENDERPATH_GL11:
        case RENDERPATH_GL13:
+       case RENDERPATH_GLES1:
        case RENDERPATH_SOFT:
        case RENDERPATH_D3D9:
        case RENDERPATH_D3D10:
@@ -2442,21 +2433,19 @@ static void R_Shadow_UpdateBounceGridTexture(void)
        // build up a complete collection of the desired settings, so that memcmp can be used to compare parameters
        memset(&settings, 0, sizeof(settings));
        settings.staticmode                    = r_shadow_bouncegrid_static.integer != 0;
-       settings.airstepmax                    = bound(1, r_shadow_bouncegrid_airstepmax.integer, 1048576);
-       settings.airstepsize                   = bound(1.0f, r_shadow_bouncegrid_airstepsize.value, 1024.0f);
        settings.bounceanglediffuse            = r_shadow_bouncegrid_bounceanglediffuse.integer != 0;
        settings.directionalshading            = (r_shadow_bouncegrid_static.integer != 0 ? r_shadow_bouncegrid_static_directionalshading.integer != 0 : r_shadow_bouncegrid_directionalshading.integer != 0) && allowdirectionalshading;
        settings.dlightparticlemultiplier      = r_shadow_bouncegrid_dlightparticlemultiplier.value;
        settings.hitmodels                     = r_shadow_bouncegrid_hitmodels.integer != 0;
-       settings.includedirectlighting         = r_shadow_bouncegrid_includedirectlighting.integer != 0;
-       settings.lightradiusscale              = r_shadow_bouncegrid_lightradiusscale.value;
-       settings.maxbounce                     = r_shadow_bouncegrid_maxbounce.integer;
+       settings.includedirectlighting         = r_shadow_bouncegrid_includedirectlighting.integer != 0 || r_shadow_bouncegrid.integer == 2;
+       settings.lightradiusscale              = (r_shadow_bouncegrid_static.integer != 0 ? r_shadow_bouncegrid_static_lightradiusscale.value : r_shadow_bouncegrid_lightradiusscale.value);
+       settings.maxbounce                     = (r_shadow_bouncegrid_static.integer != 0 ? r_shadow_bouncegrid_static_maxbounce.integer : r_shadow_bouncegrid_maxbounce.integer);
        settings.particlebounceintensity       = r_shadow_bouncegrid_particlebounceintensity.value;
-       settings.particleintensity             = r_shadow_bouncegrid_particleintensity.value;
+       settings.particleintensity             = r_shadow_bouncegrid_particleintensity.value * 16384.0f * (settings.directionalshading ? 4.0f : 1.0f) / (r_shadow_bouncegrid_spacing.value * r_shadow_bouncegrid_spacing.value);
        settings.photons                       = r_shadow_bouncegrid_static.integer ? r_shadow_bouncegrid_static_photons.integer : r_shadow_bouncegrid_photons.integer;
-       settings.spacing[0]                    = r_shadow_bouncegrid_spacingx.value;
-       settings.spacing[1]                    = r_shadow_bouncegrid_spacingy.value;
-       settings.spacing[2]                    = r_shadow_bouncegrid_spacingz.value;
+       settings.spacing[0]                    = r_shadow_bouncegrid_spacing.value;
+       settings.spacing[1]                    = r_shadow_bouncegrid_spacing.value;
+       settings.spacing[2]                    = r_shadow_bouncegrid_spacing.value;
        settings.stablerandom                  = r_shadow_bouncegrid_stablerandom.integer;
 
        // bound the values for sanity
@@ -2598,95 +2587,89 @@ static void R_Shadow_UpdateBounceGridTexture(void)
        photoncount = 0;
        for (lightindex = 0;lightindex < range2;lightindex++)
        {
-               if (settings.staticmode)
+               if (lightindex < range)
                {
                        light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
-                       if (!light || !(light->flags & flag))
+                       if (!light)
                                continue;
                        rtlight = &light->rtlight;
-                       // when static, we skip styled lights because they tend to change...
-                       if (rtlight->style > 0)
+                       VectorClear(rtlight->photoncolor);
+                       rtlight->photons = 0;
+                       if (!(light->flags & flag))
                                continue;
-                       VectorScale(rtlight->color, (rtlight->ambientscale + rtlight->diffusescale + rtlight->specularscale) * (rtlight->style >= 0 ? r_refdef.scene.rtlightstylevalue[rtlight->style] : 1), lightcolor);
+                       if (settings.staticmode)
+                       {
+                               // when static, we skip styled lights because they tend to change...
+                               if (rtlight->style > 0 && r_shadow_bouncegrid.integer != 2)
+                                       continue;
+                       }
                }
                else
                {
-                       if (lightindex < range)
-                       {
-                               light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
-                               rtlight = &light->rtlight;
-                       }
-                       else
-                               rtlight = r_refdef.scene.lights[lightindex - range];
-                       // draw only visible lights (major speedup)
-                       if (!rtlight->draw)
-                               continue;
-                       VectorScale(rtlight->currentcolor, rtlight->ambientscale + rtlight->diffusescale + rtlight->specularscale, lightcolor);
+                       rtlight = r_refdef.scene.lights[lightindex - range];
+                       VectorClear(rtlight->photoncolor);
+                       rtlight->photons = 0;
                }
-               if (!VectorLength2(lightcolor))
+               // draw only visible lights (major speedup)
+               radius = rtlight->radius * settings.lightradiusscale;
+               cullmins[0] = rtlight->shadoworigin[0] - radius;
+               cullmins[1] = rtlight->shadoworigin[1] - radius;
+               cullmins[2] = rtlight->shadoworigin[2] - radius;
+               cullmaxs[0] = rtlight->shadoworigin[0] + radius;
+               cullmaxs[1] = rtlight->shadoworigin[1] + radius;
+               cullmaxs[2] = rtlight->shadoworigin[2] + radius;
+               if (R_CullBox(cullmins, cullmaxs))
+                       continue;
+               if (r_refdef.scene.worldmodel
+                && r_refdef.scene.worldmodel->brush.BoxTouchingVisibleLeafs
+                && !r_refdef.scene.worldmodel->brush.BoxTouchingVisibleLeafs(r_refdef.scene.worldmodel, r_refdef.viewcache.world_leafvisible, cullmins, cullmaxs))
                        continue;
+               w = r_shadow_lightintensityscale.value * (rtlight->ambientscale + rtlight->diffusescale + rtlight->specularscale);
+               if (w * VectorLength2(rtlight->color) == 0.0f)
+                       continue;
+               w *= (rtlight->style >= 0 ? r_refdef.scene.rtlightstylevalue[rtlight->style] : 1);
+               VectorScale(rtlight->color, w, rtlight->photoncolor);
+               //if (!VectorLength2(rtlight->photoncolor))
+               //      continue;
                // shoot particles from this light
                // use a calculation for the number of particles that will not
                // vary with lightstyle, otherwise we get randomized particle
                // distribution, the seeded random is only consistent for a
                // consistent number of particles on this light...
-               radius = rtlight->radius * settings.lightradiusscale;
                s = rtlight->radius;
                lightintensity = VectorLength(rtlight->color) * (rtlight->ambientscale + rtlight->diffusescale + rtlight->specularscale);
                if (lightindex >= range)
                        lightintensity *= settings.dlightparticlemultiplier;
-               photoncount += max(0.0f, lightintensity * s * s);
+               rtlight->photons = max(0.0f, lightintensity * s * s);
+               photoncount += rtlight->photons;
        }
        photonscaling = (float)settings.photons / max(1, photoncount);
        photonresidual = 0.0f;
        for (lightindex = 0;lightindex < range2;lightindex++)
        {
-               if (settings.staticmode)
+               if (lightindex < range)
                {
                        light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
-                       if (!light || !(light->flags & flag))
+                       if (!light)
                                continue;
                        rtlight = &light->rtlight;
-                       // when static, we skip styled lights because they tend to change...
-                       if (rtlight->style > 0)
-                               continue;
-                       VectorScale(rtlight->color, (rtlight->ambientscale + rtlight->diffusescale + rtlight->specularscale) * (rtlight->style >= 0 ? r_refdef.scene.rtlightstylevalue[rtlight->style] : 1), lightcolor);
                }
                else
-               {
-                       if (lightindex < range)
-                       {
-                               light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex);
-                               rtlight = &light->rtlight;
-                       }
-                       else
-                               rtlight = r_refdef.scene.lights[lightindex - range];
-                       // draw only visible lights (major speedup)
-                       if (!rtlight->draw)
-                               continue;
-                       VectorScale(rtlight->currentcolor, rtlight->ambientscale + rtlight->diffusescale + rtlight->specularscale, lightcolor);
-               }
-               if (!VectorLength2(lightcolor))
+                       rtlight = r_refdef.scene.lights[lightindex - range];
+               // skip a light with no photons
+               if (rtlight->photons == 0.0f)
                        continue;
-               // shoot particles from this light
-               // use a calculation for the number of particles that will not
-               // vary with lightstyle, otherwise we get randomized particle
-               // distribution, the seeded random is only consistent for a
-               // consistent number of particles on this light...
-               radius = rtlight->radius * settings.lightradiusscale;
-               s = rtlight->radius;
-               lightintensity = VectorLength(rtlight->color) * (rtlight->ambientscale + rtlight->diffusescale + rtlight->specularscale);
-               if (lightindex >= range)
-                       lightintensity *= settings.dlightparticlemultiplier;
-               photonresidual += lightintensity * s * s * photonscaling;
+               // skip a light with no photon color)
+               if (VectorLength2(rtlight->photoncolor) == 0.0f)
+                       continue;
+               photonresidual += rtlight->photons * photonscaling;
                shootparticles = (int)bound(0, photonresidual, MAXBOUNCEGRIDPARTICLESPERLIGHT);
                if (!shootparticles)
                        continue;
                photonresidual -= shootparticles;
+               radius = rtlight->radius * settings.lightradiusscale;
                s = settings.particleintensity / shootparticles;
-               VectorScale(lightcolor, s, baseshotcolor);
-               if (VectorLength2(baseshotcolor) == 0.0f)
-                       break;
+               VectorScale(rtlight->photoncolor, s, baseshotcolor);
                r_refdef.stats.bouncegrid_lights++;
                r_refdef.stats.bouncegrid_particles += shootparticles;
                for (shotparticles = 0;shotparticles < shootparticles;shotparticles++)
@@ -2706,9 +2689,15 @@ static void R_Shadow_UpdateBounceGridTexture(void)
                                //r_refdef.scene.worldmodel->TraceLineAgainstSurfaces(r_refdef.scene.worldmodel, NULL, NULL, &cliptrace, clipstart, clipend, hitsupercontentsmask);
                                //r_refdef.scene.worldmodel->TraceLine(r_refdef.scene.worldmodel, NULL, NULL, &cliptrace2, clipstart, clipend, hitsupercontentsmask);
                                if (settings.staticmode)
-                                       Collision_ClipLineToWorld(&cliptrace, cl.worldmodel, clipstart, clipend, hitsupercontentsmask, true);
+                               {
+                                       // static mode fires a LOT of rays but none of them are identical, so they are not cached
+                                       cliptrace = CL_TraceLine(clipstart, clipend, settings.staticmode ? MOVE_WORLDONLY : (settings.hitmodels ? MOVE_HITMODEL : MOVE_NOMONSTERS), NULL, hitsupercontentsmask, true, false, NULL, true, true);
+                               }
                                else
-                                       cliptrace = CL_TraceLine(clipstart, clipend, settings.hitmodels ? MOVE_HITMODEL : MOVE_NOMONSTERS, NULL, hitsupercontentsmask, true, false, NULL, true, true);
+                               {
+                                       // dynamic mode fires many rays and most will match the cache from the previous frame
+                                       cliptrace = CL_Cache_TraceLineSurfaces(clipstart, clipend, settings.staticmode ? MOVE_WORLDONLY : (settings.hitmodels ? MOVE_HITMODEL : MOVE_NOMONSTERS), hitsupercontentsmask);
+                               }
                                if (bouncecount > 0 || settings.includedirectlighting)
                                {
                                        // calculate second order spherical harmonics values (average, slopeX, slopeY, slopeZ)
@@ -2755,20 +2744,18 @@ static void R_Shadow_UpdateBounceGridTexture(void)
                                        }
                                        // calculate the number of steps we need to traverse this distance
                                        VectorSubtract(cliptrace.endpos, clipstart, stepdelta);
-                                       numsteps = (int)(VectorLength(stepdelta) / settings.airstepsize);
-                                       numsteps = bound(1, numsteps, settings.airstepmax);
+                                       numsteps = (int)(VectorLength(stepdelta) * ispacing[0]);
+                                       numsteps = bound(1, numsteps, 1024);
                                        w = 1.0f / numsteps;
                                        VectorScale(stepdelta, w, stepdelta);
                                        VectorMA(clipstart, 0.5f, stepdelta, steppos);
-                                       if (settings.airstepmax == 1)
-                                               VectorCopy(cliptrace.endpos, steppos);
                                        for (step = 0;step < numsteps;step++)
                                        {
                                                r_refdef.stats.bouncegrid_splats++;
                                                // figure out which texture pixel this is in
-                                               texlerp[1][0] = ((steppos[0] - mins[0]) * ispacing[0]);
-                                               texlerp[1][1] = ((steppos[1] - mins[1]) * ispacing[1]);
-                                               texlerp[1][2] = ((steppos[2] - mins[2]) * ispacing[2]);
+                                               texlerp[1][0] = ((steppos[0] - mins[0]) * ispacing[0]) - 0.5f;
+                                               texlerp[1][1] = ((steppos[1] - mins[1]) * ispacing[1]) - 0.5f;
+                                               texlerp[1][2] = ((steppos[2] - mins[2]) * ispacing[2]) - 0.5f;
                                                tex[0] = (int)floor(texlerp[1][0]);
                                                tex[1] = (int)floor(texlerp[1][1]);
                                                tex[2] = (int)floor(texlerp[1][2]);
@@ -2966,7 +2953,7 @@ int bboxedges[12][2] =
 
 qboolean R_Shadow_ScissorForBBox(const float *mins, const float *maxs)
 {
-       if (!r_shadow_scissor.integer || r_shadow_usingdeferredprepass)
+       if (!r_shadow_scissor.integer || r_shadow_usingdeferredprepass || r_trippy.integer)
        {
                r_shadow_lightscissor[0] = r_refdef.view.viewport.x;
                r_shadow_lightscissor[1] = r_refdef.view.viewport.y;
@@ -3165,12 +3152,8 @@ static void R_Shadow_RenderLighting_VisibleLighting(int texturenumsurfaces, cons
 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);
+       R_SetupShader_Surface(lightcolor, false, ambientscale, diffusescale, specularscale, RSURFPASS_RTLIGHT, texturenumsurfaces, texturesurfacelist, NULL, false);
        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)
@@ -3184,8 +3167,8 @@ static void R_Shadow_RenderLighting_Light_Vertex_Pass(int firstvertex, int numve
        int *newe;
        const int *e;
        float *c;
-       int maxtriangles = 4096;
-       static int newelements[4096*3];
+       int maxtriangles = 1024;
+       int newelements[1024*3];
        R_Shadow_RenderLighting_Light_Vertex_Shading(firstvertex, numvertices, diffusecolor2, ambientcolor2);
        for (renders = 0;renders < 4;renders++)
        {
@@ -3338,8 +3321,8 @@ void R_Shadow_RenderLighting(int texturenumsurfaces, const msurface_t **textures
        qboolean negated;
        float lightcolor[3];
        VectorCopy(rsurface.rtlight->currentcolor, lightcolor);
-       ambientscale = rsurface.rtlight->ambientscale;
-       diffusescale = rsurface.rtlight->diffusescale;
+       ambientscale = rsurface.rtlight->ambientscale + rsurface.texture->rtlightambient;
+       diffusescale = rsurface.rtlight->diffusescale * max(0, 1.0 - rsurface.texture->rtlightambient);
        specularscale = rsurface.rtlight->specularscale * rsurface.texture->specularscale;
        if (!r_shadow_usenormalmap.integer)
        {
@@ -3353,29 +3336,7 @@ void R_Shadow_RenderLighting(int texturenumsurfaces, const msurface_t **textures
        if(negated)
        {
                VectorNegate(lightcolor, lightcolor);
-               switch(vid.renderpath)
-               {
-               case RENDERPATH_GL11:
-               case RENDERPATH_GL13:
-               case RENDERPATH_GL20:
-               case RENDERPATH_GLES2:
-                       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;
-               case RENDERPATH_SOFT:
-                       DPSOFTRAST_BlendSubtract(true);
-                       break;
-               }
+               GL_BlendEquationSubtract(true);
        }
        RSurf_SetupDepthAndCulling();
        switch (r_shadow_rendermode)
@@ -3398,31 +3359,7 @@ void R_Shadow_RenderLighting(int texturenumsurfaces, const msurface_t **textures
                break;
        }
        if(negated)
-       {
-               switch(vid.renderpath)
-               {
-               case RENDERPATH_GL11:
-               case RENDERPATH_GL13:
-               case RENDERPATH_GL20:
-               case RENDERPATH_GLES2:
-                       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;
-               case RENDERPATH_SOFT:
-                       DPSOFTRAST_BlendSubtract(false);
-                       break;
-               }
-       }
+               GL_BlendEquationSubtract(false);
 }
 
 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)
@@ -3619,7 +3556,7 @@ void R_Shadow_UncompileWorldLights(void)
        }
 }
 
-void R_Shadow_ComputeShadowCasterCullingPlanes(rtlight_t *rtlight)
+static void R_Shadow_ComputeShadowCasterCullingPlanes(rtlight_t *rtlight)
 {
        int i, j;
        mplane_t plane;
@@ -3628,6 +3565,9 @@ void R_Shadow_ComputeShadowCasterCullingPlanes(rtlight_t *rtlight)
        // can hold
        rtlight->cached_numfrustumplanes = 0;
 
+       if (r_trippy.integer)
+               return;
+
        // haven't implemented a culling path for ortho rendering
        if (!r_refdef.view.useperspective)
        {
@@ -3785,7 +3725,7 @@ void R_Shadow_ComputeShadowCasterCullingPlanes(rtlight_t *rtlight)
 #endif
 }
 
-void R_Shadow_DrawWorldShadow_ShadowMap(int numsurfaces, int *surfacelist, const unsigned char *trispvs, const unsigned char *surfacesides)
+static void R_Shadow_DrawWorldShadow_ShadowMap(int numsurfaces, int *surfacelist, const unsigned char *trispvs, const unsigned char *surfacesides)
 {
        shadowmesh_t *mesh;
 
@@ -3815,7 +3755,7 @@ void R_Shadow_DrawWorldShadow_ShadowMap(int numsurfaces, int *surfacelist, const
        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)
+static void R_Shadow_DrawWorldShadow_ShadowVolume(int numsurfaces, int *surfacelist, const unsigned char *trispvs)
 {
        qboolean zpass = false;
        shadowmesh_t *mesh;
@@ -3890,7 +3830,7 @@ void R_Shadow_DrawWorldShadow_ShadowVolume(int numsurfaces, int *surfacelist, co
        rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
 }
 
-void R_Shadow_DrawEntityShadow(entity_render_t *ent)
+static void R_Shadow_DrawEntityShadow(entity_render_t *ent)
 {
        vec3_t relativeshadoworigin, relativeshadowmins, relativeshadowmaxs;
        vec_t relativeshadowradius;
@@ -3926,7 +3866,7 @@ void R_Shadow_SetupEntityLight(const entity_render_t *ent)
        Matrix4x4_Transform(&ent->inversematrix, rsurface.rtlight->shadoworigin, rsurface.entitylightorigin);
 }
 
-void R_Shadow_DrawWorldLight(int numsurfaces, int *surfacelist, const unsigned char *lighttrispvs)
+static void R_Shadow_DrawWorldLight(int numsurfaces, int *surfacelist, const unsigned char *lighttrispvs)
 {
        if (!r_refdef.scene.worldmodel->DrawLight)
                return;
@@ -3943,7 +3883,7 @@ void R_Shadow_DrawWorldLight(int numsurfaces, int *surfacelist, const unsigned c
        rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
 }
 
-void R_Shadow_DrawEntityLight(entity_render_t *ent)
+static void R_Shadow_DrawEntityLight(entity_render_t *ent)
 {
        dp_model_t *model = ent->model;
        if (!model->DrawLight)
@@ -3956,7 +3896,7 @@ void R_Shadow_DrawEntityLight(entity_render_t *ent)
        rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
 }
 
-void R_Shadow_PrepareLight(rtlight_t *rtlight)
+static void R_Shadow_PrepareLight(rtlight_t *rtlight)
 {
        int i;
        float f;
@@ -4190,7 +4130,7 @@ void R_Shadow_PrepareLight(rtlight_t *rtlight)
        }
 }
 
-void R_Shadow_DrawLight(rtlight_t *rtlight)
+static void R_Shadow_DrawLight(rtlight_t *rtlight)
 {
        int i;
        int numsurfaces;
@@ -4439,13 +4379,9 @@ static void R_Shadow_FreeDeferred(void)
        R_Mesh_DestroyFramebufferObject(r_shadow_prepasslightingdiffusefbo);
        r_shadow_prepasslightingdiffusefbo = 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_prepassgeometrydepthbuffer)
+               R_FreeTexture(r_shadow_prepassgeometrydepthbuffer);
+       r_shadow_prepassgeometrydepthbuffer = NULL;
 
        if (r_shadow_prepassgeometrynormalmaptexture)
                R_FreeTexture(r_shadow_prepassgeometrynormalmaptexture);
@@ -4477,7 +4413,7 @@ void R_Shadow_DrawPrepass(void)
        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);
+       R_Mesh_SetRenderTargets(r_shadow_prepassgeometryfbo, r_shadow_prepassgeometrydepthbuffer, r_shadow_prepassgeometrynormalmaptexture, NULL, 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)
@@ -4504,7 +4440,7 @@ void R_Shadow_DrawPrepass(void)
        GL_ColorMask(1,1,1,1);
        GL_Color(1,1,1,1);
        GL_DepthTest(true);
-       R_Mesh_SetRenderTargets(r_shadow_prepasslightingdiffusespecularfbo, r_shadow_prepassgeometrydepthtexture, r_shadow_prepasslightingdiffusetexture, r_shadow_prepasslightingspeculartexture, NULL, NULL);
+       R_Mesh_SetRenderTargets(r_shadow_prepasslightingdiffusespecularfbo, r_shadow_prepassgeometrydepthbuffer, 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)
@@ -4535,8 +4471,6 @@ void R_Shadow_DrawPrepass(void)
                        if (r_refdef.scene.lights[lnum]->draw)
                                R_Shadow_DrawLight(r_refdef.scene.lights[lnum]);
 
-       R_Mesh_SetMainRenderTargets();
-
        R_Shadow_RenderMode_End();
 
        if (r_timereport_active)
@@ -4544,7 +4478,7 @@ void R_Shadow_DrawPrepass(void)
 }
 
 void R_Shadow_DrawLightSprites(void);
-void R_Shadow_PrepareLights(void)
+void R_Shadow_PrepareLights(int fbo, rtexture_t *depthtexture, rtexture_t *colortexture)
 {
        int flag;
        int lnum;
@@ -4552,7 +4486,6 @@ void R_Shadow_PrepareLights(void)
        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) ||
@@ -4562,6 +4495,10 @@ void R_Shadow_PrepareLights(void)
                r_shadow_shadowmapborder != bound(0, r_shadow_shadowmapping_bordersize.integer, 16))
                R_Shadow_FreeShadowMaps();
 
+       r_shadow_fb_fbo = fbo;
+       r_shadow_fb_depthtexture = depthtexture;
+       r_shadow_fb_colortexture = colortexture;
+
        r_shadow_usingshadowmaportho = false;
 
        switch (vid.renderpath)
@@ -4571,7 +4508,7 @@ void R_Shadow_PrepareLights(void)
        case RENDERPATH_D3D10:
        case RENDERPATH_D3D11:
        case RENDERPATH_SOFT:
-       case RENDERPATH_GLES2:
+#ifndef USE_GLES2
                if (!r_shadow_deferred.integer || r_shadow_shadowmode == R_SHADOW_SHADOWMODE_STENCIL || !vid.support.ext_framebuffer_object || vid.maxdrawbuffers < 2)
                {
                        r_shadow_usingdeferredprepass = false;
@@ -4588,77 +4525,36 @@ void R_Shadow_PrepareLights(void)
                        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);
+                       r_shadow_prepassgeometrydepthbuffer = R_LoadTextureRenderBuffer(r_shadow_texturepool, "prepassgeometrydepthbuffer", vid.width, vid.height, TEXTYPE_DEPTHBUFFER24);
+                       r_shadow_prepassgeometrynormalmaptexture = R_LoadTexture2D(r_shadow_texturepool, "prepassgeometrynormalmap", vid.width, vid.height, NULL, TEXTYPE_COLORBUFFER16F, 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_COLORBUFFER16F, 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_COLORBUFFER16F, 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;
-                               }
-                       }
+                       r_shadow_prepassgeometryfbo = R_Mesh_CreateFramebufferObject(r_shadow_prepassgeometrydepthbuffer, r_shadow_prepassgeometrynormalmaptexture, NULL, NULL, NULL);
+                       R_Mesh_SetRenderTargets(r_shadow_prepassgeometryfbo, r_shadow_prepassgeometrydepthbuffer, r_shadow_prepassgeometrynormalmaptexture, NULL, NULL, NULL);
+                       // render depth into a renderbuffer and other important properties into the normalmap texture
 
                        // set up the lighting pass fbo (diffuse + specular)
-                       r_shadow_prepasslightingdiffusespecularfbo = R_Mesh_CreateFramebufferObject(r_shadow_prepassgeometrydepthtexture, r_shadow_prepasslightingdiffusetexture, r_shadow_prepasslightingspeculartexture, NULL, NULL);
-                       R_Mesh_SetRenderTargets(r_shadow_prepasslightingdiffusespecularfbo, r_shadow_prepassgeometrydepthtexture, r_shadow_prepasslightingdiffusetexture, r_shadow_prepasslightingspeculartexture, NULL, NULL);
+                       r_shadow_prepasslightingdiffusespecularfbo = R_Mesh_CreateFramebufferObject(r_shadow_prepassgeometrydepthbuffer, r_shadow_prepasslightingdiffusetexture, r_shadow_prepasslightingspeculartexture, NULL, NULL);
+                       R_Mesh_SetRenderTargets(r_shadow_prepasslightingdiffusespecularfbo, r_shadow_prepassgeometrydepthbuffer, 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;
-                               }
-                       }
 
                        // set up the lighting pass fbo (diffuse)
-                       r_shadow_prepasslightingdiffusefbo = R_Mesh_CreateFramebufferObject(r_shadow_prepassgeometrydepthtexture, r_shadow_prepasslightingdiffusetexture, NULL, NULL, NULL);
-                       R_Mesh_SetRenderTargets(r_shadow_prepasslightingdiffusefbo, r_shadow_prepassgeometrydepthtexture, r_shadow_prepasslightingdiffusetexture, NULL, NULL, NULL);
+                       r_shadow_prepasslightingdiffusefbo = R_Mesh_CreateFramebufferObject(r_shadow_prepassgeometrydepthbuffer, r_shadow_prepasslightingdiffusetexture, NULL, NULL, NULL);
+                       R_Mesh_SetRenderTargets(r_shadow_prepasslightingdiffusefbo, r_shadow_prepassgeometrydepthbuffer, r_shadow_prepasslightingdiffusetexture, NULL, NULL, NULL);
                        // render diffuse into one texture,
                        // with depth and normalmap bound as textures,
                        // with depth bound as attachment as well
-                       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;
-                               }
-                       }
                }
+#endif
                break;
-       case RENDERPATH_GL13:
        case RENDERPATH_GL11:
+       case RENDERPATH_GL13:
+       case RENDERPATH_GLES1:
+       case RENDERPATH_GLES2:
                r_shadow_usingdeferredprepass = false;
                break;
        }
@@ -4666,22 +4562,25 @@ void R_Shadow_PrepareLights(void)
        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)
+       if (r_shadow_bouncegrid.integer != 2)
        {
-               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++)
+               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))
+                       if (light)
                                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)
        {
@@ -4700,8 +4599,6 @@ void R_Shadow_PrepareLights(void)
 
        if (r_editlights.integer)
                R_Shadow_DrawLightSprites();
-
-       R_Shadow_UpdateBounceGridTexture();
 }
 
 void R_Shadow_DrawLights(void)
@@ -4714,23 +4611,26 @@ void R_Shadow_DrawLights(void)
 
        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
+       if (r_shadow_bouncegrid.integer != 2)
        {
-               range = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); // checked
-               for (lightindex = 0;lightindex < range;lightindex++)
+               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))
+                       if (light)
                                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++)
@@ -4739,19 +4639,6 @@ void R_Shadow_DrawLights(void)
        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;
@@ -4821,7 +4708,7 @@ void R_Shadow_PrepareModelShadows(void)
        }
 }
 
-void R_DrawModelShadowMaps(void)
+void R_DrawModelShadowMaps(int fbo, rtexture_t *depthtexture, rtexture_t *colortexture)
 {
        int i;
        float relativethrowdistance, scale, size, radius, nearclip, farclip, bias, dot1, dot2;
@@ -4833,7 +4720,7 @@ void R_DrawModelShadowMaps(void)
        float m[12];
        matrix4x4_t shadowmatrix, cameramatrix, mvpmatrix, invmvpmatrix, scalematrix, texmatrix;
        r_viewport_t viewport;
-       GLuint fbo = 0;
+       GLuint shadowfbo = 0;
        float clearcolor[4];
 
        if (!r_refdef.scene.numentities)
@@ -4847,18 +4734,22 @@ void R_DrawModelShadowMaps(void)
                return;
        }
 
-       R_ResetViewRendering3D();
+       r_shadow_fb_fbo = fbo;
+       r_shadow_fb_depthtexture = depthtexture;
+       r_shadow_fb_colortexture = colortexture;
+
+       R_ResetViewRendering3D(fbo, depthtexture, colortexture);
        R_Shadow_RenderMode_Begin();
        R_Shadow_RenderMode_ActiveLight(NULL);
 
        switch (r_shadow_shadowmode)
        {
        case R_SHADOW_SHADOWMODE_SHADOWMAP2D:
-               if (!r_shadow_shadowmap2dtexture)
+               if (!r_shadow_shadowmap2ddepthtexture)
                        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);
+               shadowfbo = r_shadow_fbo2d;
+               r_shadow_shadowmap_texturescale[0] = 1.0f / R_TextureWidth(r_shadow_shadowmap2ddepthtexture);
+               r_shadow_shadowmap_texturescale[1] = 1.0f / R_TextureHeight(r_shadow_shadowmap2ddepthtexture);
                r_shadow_rendermode = R_SHADOW_RENDERMODE_SHADOWMAP2D;
                break;
        default:
@@ -4906,8 +4797,11 @@ void R_DrawModelShadowMaps(void)
 
        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();
+       if (r_shadow_shadowmap2ddepthbuffer)
+               R_Mesh_SetRenderTargets(shadowfbo, r_shadow_shadowmap2ddepthbuffer, r_shadow_shadowmap2ddepthtexture, NULL, NULL, NULL);
+       else
+               R_Mesh_SetRenderTargets(shadowfbo, r_shadow_shadowmap2ddepthtexture, NULL, NULL, NULL, NULL);
+       R_SetupShader_DepthOrShadow(true, r_shadow_shadowmap2ddepthbuffer != NULL);
        GL_PolygonOffset(r_shadow_shadowmapping_polygonfactor.value, r_shadow_shadowmapping_polygonoffset.value);
        GL_DepthMask(true);
        GL_DepthTest(true);
@@ -4916,7 +4810,7 @@ void R_DrawModelShadowMaps(void)
        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)
+       if (r_shadow_shadowmap2ddepthbuffer)
                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);
@@ -4927,8 +4821,8 @@ void R_DrawModelShadowMaps(void)
 
 #if 0
        // debugging
-       R_Mesh_SetMainRenderTargets();
-       R_SetupShader_ShowDepth();
+       R_Mesh_SetRenderTargets(r_shadow_fb_fbo, r_shadow_fb_depthtexture, r_shadow_fb_colortexture, NULL, NULL, NULL);
+       R_SetupShader_ShowDepth(true);
        GL_ColorMask(1,1,1,1);
        GL_Clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT, clearcolor, 1.0f, 0);
 #endif
@@ -4985,6 +4879,7 @@ void R_DrawModelShadowMaps(void)
        case RENDERPATH_GL13:
        case RENDERPATH_GL20:
        case RENDERPATH_SOFT:
+       case RENDERPATH_GLES1:
        case RENDERPATH_GLES2:
                break;
        case RENDERPATH_D3D9:
@@ -5015,7 +4910,7 @@ void R_DrawModelShadowMaps(void)
        }
 }
 
-void R_DrawModelShadows(void)
+void R_DrawModelShadows(int fbo, rtexture_t *depthtexture, rtexture_t *colortexture)
 {
        int i;
        float relativethrowdistance;
@@ -5028,7 +4923,11 @@ void R_DrawModelShadows(void)
        if (!r_refdef.scene.numentities || !vid.stencil || (r_shadow_shadowmode != R_SHADOW_SHADOWMODE_STENCIL && r_shadows.integer != 1))
                return;
 
-       R_ResetViewRendering3D();
+       r_shadow_fb_fbo = fbo;
+       r_shadow_fb_depthtexture = depthtexture;
+       r_shadow_fb_colortexture = colortexture;
+
+       R_ResetViewRendering3D(fbo, depthtexture, colortexture);
        //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();
@@ -5113,7 +5012,7 @@ void R_DrawModelShadows(void)
        //GL_ScissorTest(true);
        //R_EntityMatrix(&identitymatrix);
        //R_Mesh_ResetTextureState();
-       R_ResetViewRendering2D();
+       R_ResetViewRendering2D(fbo, depthtexture, colortexture);
 
        // set up a darkening blend on shadowed areas
        GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@@ -5128,7 +5027,7 @@ void R_DrawModelShadows(void)
 
        // 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_SetupShader_Generic_NoTexture(false, true);
        R_Mesh_Draw(0, 4, 0, 2, polygonelement3i, NULL, 0, polygonelement3s, NULL, 0);
 
        // restore the viewport
@@ -5138,7 +5037,7 @@ void R_DrawModelShadows(void)
        //R_Shadow_RenderMode_End();
 }
 
-void R_BeginCoronaQuery(rtlight_t *rtlight, float scale, qboolean usequery)
+static void R_BeginCoronaQuery(rtlight_t *rtlight, float scale, qboolean usequery)
 {
        float zdist;
        vec3_t centerorigin;
@@ -5158,10 +5057,12 @@ void R_BeginCoronaQuery(rtlight_t *rtlight, float scale, qboolean usequery)
 
                switch(vid.renderpath)
                {
-               case RENDERPATH_GL20:
-               case RENDERPATH_GL13:
                case RENDERPATH_GL11:
+               case RENDERPATH_GL13:
+               case RENDERPATH_GL20:
+               case RENDERPATH_GLES1:
                case RENDERPATH_GLES2:
+#ifdef GL_SAMPLES_PASSED_ARB
                        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);
@@ -5177,6 +5078,7 @@ void R_BeginCoronaQuery(rtlight_t *rtlight, float scale, qboolean usequery)
                        R_Mesh_Draw(0, 4, 0, 2, polygonelement3i, NULL, 0, polygonelement3s, NULL, 0);
                        qglEndQueryARB(GL_SAMPLES_PASSED_ARB);
                        CHECKGLERROR
+#endif
                        break;
                case RENDERPATH_D3D9:
                        Con_DPrintf("FIXME D3D9 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
@@ -5197,7 +5099,7 @@ void R_BeginCoronaQuery(rtlight_t *rtlight, float scale, qboolean usequery)
 
 static float spritetexcoord2f[4*2] = {0, 1, 0, 0, 1, 0, 1, 1};
 
-void R_DrawCorona(rtlight_t *rtlight, float cscale, float scale)
+static void R_DrawCorona(rtlight_t *rtlight, float cscale, float scale)
 {
        vec3_t color;
        GLint allpixels = 0, visiblepixels = 0;
@@ -5206,14 +5108,17 @@ void R_DrawCorona(rtlight_t *rtlight, float cscale, float scale)
        {
                switch(vid.renderpath)
                {
-               case RENDERPATH_GL20:
-               case RENDERPATH_GL13:
                case RENDERPATH_GL11:
+               case RENDERPATH_GL13:
+               case RENDERPATH_GL20:
+               case RENDERPATH_GLES1:
                case RENDERPATH_GLES2:
+#ifdef GL_SAMPLES_PASSED_ARB
                        CHECKGLERROR
                        qglGetQueryObjectivARB(rtlight->corona_queryindex_visiblepixels, GL_QUERY_RESULT_ARB, &visiblepixels);
                        qglGetQueryObjectivARB(rtlight->corona_queryindex_allpixels, GL_QUERY_RESULT_ARB, &allpixels);
                        CHECKGLERROR
+#endif
                        break;
                case RENDERPATH_D3D9:
                        Con_DPrintf("FIXME D3D9 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
@@ -5248,59 +5153,13 @@ void R_DrawCorona(rtlight_t *rtlight, float cscale, float scale)
                if(negated)
                {
                        VectorNegate(color, color);
-                       switch(vid.renderpath)
-                       {
-                       case RENDERPATH_GL11:
-                       case RENDERPATH_GL13:
-                       case RENDERPATH_GL20:
-                       case RENDERPATH_GLES2:
-                               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;
-                       case RENDERPATH_SOFT:
-                               DPSOFTRAST_BlendSubtract(true);
-                               break;
-                       }
+                       GL_BlendEquationSubtract(true);
                }
                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_GLES2:
-                               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;
-                       case RENDERPATH_SOFT:
-                               DPSOFTRAST_BlendSubtract(false);
-                               break;
-                       }
-               }
+                       GL_BlendEquationSubtract(false);
        }
 }
 
@@ -5314,7 +5173,7 @@ void R_Shadow_DrawCoronas(void)
        size_t range;
        if (r_coronas.value < (1.0f / 256.0f) && !gl_flashblend.integer)
                return;
-       if (r_waterstate.renderingscene)
+       if (r_fb.water.renderingscene)
                return;
        flag = r_refdef.scene.rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE;
        R_EntityMatrix(&identitymatrix);
@@ -5330,8 +5189,10 @@ void R_Shadow_DrawCoronas(void)
        case RENDERPATH_GL11:
        case RENDERPATH_GL13:
        case RENDERPATH_GL20:
+       case RENDERPATH_GLES1:
        case RENDERPATH_GLES2:
                usequery = vid.support.arb_occlusion_query && r_coronas_occlusionquery.integer;
+#ifdef GL_SAMPLES_PASSED_ARB
                if (usequery)
                {
                        GL_ColorMask(0,0,0,0);
@@ -5353,8 +5214,9 @@ void R_Shadow_DrawCoronas(void)
                        GL_PolygonOffset(0, 0);
                        GL_DepthTest(true);
                        R_Mesh_ResetTextureState();
-                       R_SetupShader_Generic(NULL, NULL, GL_MODULATE, 1);
+                       R_SetupShader_Generic_NoTexture(false, false);
                }
+#endif
                break;
        case RENDERPATH_D3D9:
                usequery = false;
@@ -5428,12 +5290,12 @@ void R_Shadow_DrawCoronas(void)
 
 
 
-dlight_t *R_Shadow_NewWorldLight(void)
+static 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)
+static 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
@@ -5474,7 +5336,7 @@ void R_Shadow_UpdateWorldLight(dlight_t *light, vec3_t origin, vec3_t angles, ve
        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)
+static void R_Shadow_FreeWorldLight(dlight_t *light)
 {
        if (r_shadow_selectedlight == light)
                r_shadow_selectedlight = NULL;
@@ -5496,7 +5358,7 @@ void R_Shadow_ClearWorldLights(void)
        r_shadow_selectedlight = NULL;
 }
 
-void R_Shadow_SelectLight(dlight_t *light)
+static void R_Shadow_SelectLight(dlight_t *light)
 {
        if (r_shadow_selectedlight)
                r_shadow_selectedlight->selected = false;
@@ -5505,7 +5367,7 @@ void R_Shadow_SelectLight(dlight_t *light)
                r_shadow_selectedlight->selected = true;
 }
 
-void R_Shadow_DrawCursor_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
+static 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];
@@ -5514,7 +5376,7 @@ void R_Shadow_DrawCursor_TransparentCallback(const entity_render_t *ent, const r
        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)
+static void R_Shadow_DrawLightSprite_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
 {
        float intensity;
        float s;
@@ -5567,10 +5429,10 @@ void R_Shadow_DrawLightSprites(void)
        {
                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);
+                       R_MeshQueue_AddTransparent(MESHQUEUE_SORT_DISTANCE, 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);
+               R_MeshQueue_AddTransparent(MESHQUEUE_SORT_DISTANCE, r_editlights_cursorlocation, R_Shadow_DrawCursor_TransparentCallback, NULL, 0, NULL);
 }
 
 int R_Shadow_GetRTLightInfo(unsigned int lightindex, float *origin, float *radius, float *color)
@@ -5593,7 +5455,7 @@ int R_Shadow_GetRTLightInfo(unsigned int lightindex, float *origin, float *radiu
        return 1;
 }
 
-void R_Shadow_SelectLightInView(void)
+static void R_Shadow_SelectLightInView(void)
 {
        float bestrating, rating, temp[3];
        dlight_t *best;
@@ -5848,6 +5710,7 @@ void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void)
        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];
+       char vabuf[1024];
 
        if (cl.worldmodel == NULL)
        {
@@ -5862,7 +5725,7 @@ void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void)
                data = cl.worldmodel->brush.entities;
        if (!data)
                return;
-       for (entnum = 0;COM_ParseToken_Simple(&data, false, false) && com_token[0] == '{';entnum++)
+       for (entnum = 0;COM_ParseToken_Simple(&data, false, false, true) && com_token[0] == '{';entnum++)
        {
                type = LIGHTTYPE_MINUSX;
                origin[0] = origin[1] = origin[2] = 0;
@@ -5880,7 +5743,7 @@ void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void)
                islight = false;
                while (1)
                {
-                       if (!COM_ParseToken_Simple(&data, false, false))
+                       if (!COM_ParseToken_Simple(&data, false, false, true))
                                break; // error
                        if (com_token[0] == '}')
                                break; // end of entity
@@ -5890,7 +5753,7 @@ void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void)
                                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))
+                       if (!COM_ParseToken_Simple(&data, false, false, true))
                                break; // error
                        strlcpy(value, com_token, sizeof(value));
 
@@ -6051,14 +5914,14 @@ void R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite(void)
                }
                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);
+                       R_Shadow_UpdateWorldLight(R_Shadow_NewWorldLight(), origin, angles, color, radius, (pflags & PFLAGS_CORONA) != 0, style, (pflags & PFLAGS_NOSHADOW) == 0, skin >= 16 ? va(vabuf, sizeof(vabuf), "cubemaps/%i", skin) : NULL, 0.25, 0, 1, 1, LIGHTFLAG_REALTIMEMODE);
        }
        if (entfiledata)
                Mem_Free(entfiledata);
 }
 
 
-void R_Shadow_SetCursorLocationForView(void)
+static void R_Shadow_SetCursorLocationForView(void)
 {
        vec_t dist, push;
        vec3_t dest, endpos;
@@ -6095,7 +5958,7 @@ void R_Shadow_UpdateWorldLightSelection(void)
                R_Shadow_SelectLight(NULL);
 }
 
-void R_Shadow_EditLights_Clear_f(void)
+static void R_Shadow_EditLights_Clear_f(void)
 {
        R_Shadow_ClearWorldLights();
 }
@@ -6115,26 +5978,26 @@ void R_Shadow_EditLights_Reload_f(void)
        }
 }
 
-void R_Shadow_EditLights_Save_f(void)
+static void R_Shadow_EditLights_Save_f(void)
 {
        if (!cl.worldmodel)
                return;
        R_Shadow_SaveWorldLights();
 }
 
-void R_Shadow_EditLights_ImportLightEntitiesFromMap_f(void)
+static void R_Shadow_EditLights_ImportLightEntitiesFromMap_f(void)
 {
        R_Shadow_ClearWorldLights();
        R_Shadow_LoadWorldLightsFromMap_LightArghliteTyrlite();
 }
 
-void R_Shadow_EditLights_ImportLightsFile_f(void)
+static void R_Shadow_EditLights_ImportLightsFile_f(void)
 {
        R_Shadow_ClearWorldLights();
        R_Shadow_LoadLightsFile();
 }
 
-void R_Shadow_EditLights_Spawn_f(void)
+static void R_Shadow_EditLights_Spawn_f(void)
 {
        vec3_t color;
        if (!r_editlights.integer)
@@ -6151,7 +6014,7 @@ void R_Shadow_EditLights_Spawn_f(void)
        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)
+static void R_Shadow_EditLights_Edit_f(void)
 {
        vec3_t origin, angles, color;
        vec_t radius, corona, coronasizescale, ambientscale, diffusescale, specularscale;
@@ -6477,7 +6340,7 @@ void R_Shadow_EditLights_Edit_f(void)
        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)
+static void R_Shadow_EditLights_EditAll_f(void)
 {
        size_t lightindex;
        dlight_t *light, *oldselected;
@@ -6550,7 +6413,7 @@ void R_Shadow_EditLights_DrawSelectedLightProperties(void)
        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)
+static void R_Shadow_EditLights_ToggleShadow_f(void)
 {
        if (!r_editlights.integer)
        {
@@ -6565,7 +6428,7 @@ void R_Shadow_EditLights_ToggleShadow_f(void)
        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)
+static void R_Shadow_EditLights_ToggleCorona_f(void)
 {
        if (!r_editlights.integer)
        {
@@ -6580,7 +6443,7 @@ void R_Shadow_EditLights_ToggleCorona_f(void)
        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)
+static void R_Shadow_EditLights_Remove_f(void)
 {
        if (!r_editlights.integer)
        {
@@ -6596,7 +6459,7 @@ void R_Shadow_EditLights_Remove_f(void)
        r_shadow_selectedlight = NULL;
 }
 
-void R_Shadow_EditLights_Help_f(void)
+static void R_Shadow_EditLights_Help_f(void)
 {
        Con_Print(
 "Documentation on r_editlights system:\n"
@@ -6653,7 +6516,7 @@ void R_Shadow_EditLights_Help_f(void)
        );
 }
 
-void R_Shadow_EditLights_CopyInfo_f(void)
+static void R_Shadow_EditLights_CopyInfo_f(void)
 {
        if (!r_editlights.integer)
        {
@@ -6682,7 +6545,7 @@ void R_Shadow_EditLights_CopyInfo_f(void)
        r_shadow_bufferlight.flags = r_shadow_selectedlight->flags;
 }
 
-void R_Shadow_EditLights_PasteInfo_f(void)
+static void R_Shadow_EditLights_PasteInfo_f(void)
 {
        if (!r_editlights.integer)
        {
@@ -6697,7 +6560,7 @@ void R_Shadow_EditLights_PasteInfo_f(void)
        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)
+static void R_Shadow_EditLights_Lock_f(void)
 {
        if (!r_editlights.integer)
        {
@@ -6717,7 +6580,7 @@ void R_Shadow_EditLights_Lock_f(void)
        r_editlights_lockcursor = true;
 }
 
-void R_Shadow_EditLights_Init(void)
+static void R_Shadow_EditLights_Init(void)
 {
        Cvar_RegisterVariable(&r_editlights);
        Cvar_RegisterVariable(&r_editlights_cursordistance);
@@ -6760,26 +6623,29 @@ void R_LightPoint(vec3_t color, const vec3_t p, const int flags)
        rtlight_t *light;
        dlight_t *dlight;
 
-       VectorClear(color);
-
        if (r_fullbright.integer)
        {
                VectorSet(color, 1, 1, 1);
                return;
        }
 
+       VectorClear(color);
+
        if (flags & LP_LIGHTMAP)
        {
-               if (!r_fullbright.integer && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.LightPoint)
+               if (!r_fullbright.integer && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->lit && r_refdef.scene.worldmodel->brush.LightPoint)
                {
+                       VectorClear(diffuse);
                        r_refdef.scene.worldmodel->brush.LightPoint(r_refdef.scene.worldmodel, p, color, diffuse, n);
-                       color[0] += r_refdef.scene.ambient + diffuse[0];
-                       color[1] += r_refdef.scene.ambient + diffuse[1];
-                       color[2] += r_refdef.scene.ambient + diffuse[2];
+                       VectorAdd(color, diffuse, color);
                }
                else
                        VectorSet(color, 1, 1, 1);
+               color[0] += r_refdef.scene.ambient;
+               color[1] += r_refdef.scene.ambient;
+               color[2] += r_refdef.scene.ambient;
        }
+
        if (flags & LP_RTWORLD)
        {
                flag = r_refdef.scene.rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE;
@@ -6857,15 +6723,17 @@ void R_CompleteLightPoint(vec3_t ambient, vec3_t diffuse, vec3_t lightdir, const
                VectorSet(ambient, r_refdef.scene.ambient, r_refdef.scene.ambient, r_refdef.scene.ambient);
                VectorClear(diffuse);
                VectorClear(lightdir);
-               if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.LightPoint)
+               if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->lit && r_refdef.scene.worldmodel->brush.LightPoint)
                        r_refdef.scene.worldmodel->brush.LightPoint(r_refdef.scene.worldmodel, p, ambient, diffuse, lightdir);
+               else
+                       VectorSet(ambient, 1, 1, 1);
                return;
        }
 
        memset(sample, 0, sizeof(sample));
        VectorSet(sample, r_refdef.scene.ambient, r_refdef.scene.ambient, r_refdef.scene.ambient);
 
-       if ((flags & LP_LIGHTMAP) && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->brush.LightPoint)
+       if ((flags & LP_LIGHTMAP) && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->lit && r_refdef.scene.worldmodel->brush.LightPoint)
        {
                vec3_t tempambient;
                VectorClear(tempambient);
@@ -6920,6 +6788,7 @@ void R_CompleteLightPoint(vec3_t ambient, vec3_t diffuse, vec3_t lightdir, const
                        intensity *= VectorLength(color);
                        VectorMA(sample + 12, intensity, relativepoint, sample + 12);
                }
+               // FIXME: sample bouncegrid too!
        }
 
        if (flags & LP_DYNLIGHT)