diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class3')
| -rw-r--r-- | indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl | 70 | ||||
| -rw-r--r-- | indra/newview/app_settings/shaders/class3/lighting/sumLightsV.glsl | 27 |
2 files changed, 74 insertions, 23 deletions
diff --git a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl index 96a083b522..45d921d861 100644 --- a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl +++ b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl @@ -56,9 +56,8 @@ vec3 vary_AdditiveColor; vec3 vary_AtmosAttenuation; uniform float gi_ambiance; -vec4 getPosition(vec2 pos_screen) -{ //get position in screen space (world units) given window coordinate and depth map - float depth = texture2DRect(depthMap, pos_screen.xy).a; +vec4 getPosition_d(vec2 pos_screen, float depth) +{ vec2 sc = pos_screen.xy*2.0; sc /= screen_res; sc -= vec2(1.0,1.0); @@ -69,6 +68,12 @@ vec4 getPosition(vec2 pos_screen) return pos; } +vec4 getPosition(vec2 pos_screen) +{ //get position in screen space (world units) given window coordinate and depth map + float depth = texture2DRect(depthMap, pos_screen.xy).a; + return getPosition_d(pos_screen, depth); +} + vec3 getPositionEye() { return vary_PositionEye; @@ -252,7 +257,8 @@ vec3 scaleSoftClip(vec3 light) void main() { vec2 tc = vary_fragcoord.xy; - vec3 pos = getPosition(tc).xyz; + float depth = texture2DRect(depthMap, tc.xy).a; + vec3 pos = getPosition_d(tc, depth).xyz; vec3 norm = texture2DRect(normalMap, tc).xyz*2.0-1.0; //vec3 nz = texture2D(noiseMap, vary_fragcoord.xy/128.0).xyz; @@ -274,11 +280,59 @@ void main() col *= diffuse.rgb; - if (spec.a > 0.0) + if (spec.a > 0.0) // specular reflection { - vec3 ref = normalize(reflect(pos.xyz, norm.xyz)); - float sa = dot(ref, vary_light.xyz); - col.rgb += vary_SunlitColor*scol*spec.rgb*texture2D(lightFunc, vec2(sa, spec.a)).a; + // the old infinite-sky shiny reflection + // + vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz)); + float sa = dot(refnormpersp, vary_light.xyz); + vec3 dumbshiny = vary_SunlitColor*scol*texture2D(lightFunc, vec2(sa, spec.a)).a; + + // screen-space cheap fakey reflection map + // + vec3 refnorm = normalize(reflect(vec3(0,0,-1), norm.xyz)); + depth -= 0.5; // unbias depth + // first figure out where we'll make our 2D guess from + vec2 ref2d = (0.25 * screen_res.y) * (refnorm.xy) * abs(refnorm.z) / depth; + // Offset the guess source a little according to a trivial + // checkerboard dither function and spec.a. + // This is meant to be similar to sampling a blurred version + // of the diffuse map. LOD would be better in that regard. + // The goal of the blur is to soften reflections in surfaces + // with low shinyness, and also to disguise our lameness. + float checkerboard = floor(mod(tc.x+tc.y, 2.0)); // 0.0, 1.0 + vec2 checkoffset = normalize(ref2d)*9.0*(1.0-spec.a)*(checkerboard-0.5); + ref2d += checkoffset; + ref2d += tc.xy; // use as offset from destination + // Get attributes from the 2D guess point. + // We average two samples of diffuse (not of anything else) per + // pixel to try to reduce aliasing some more. + // --------------------- + // ^ ^ ^ ^ ^ + // a . b o c . d check=0:avg(a,b) check=1:avg(c,d) + vec3 refcol = 0.5 * (texture2DRect(diffuseRect, ref2d).rgb + + texture2DRect(diffuseRect, ref2d + checkoffset*2.0).rgb); + float refdepth = texture2DRect(depthMap, ref2d).a; + vec3 refpos = getPosition_d(ref2d, refdepth).xyz; + float refshad = texture2DRect(lightMap, ref2d).r; + vec3 refn = normalize(texture2DRect(normalMap, ref2d).rgb * 2.0 - 1.0); + // figure out how appropriate our guess actually was + float refapprop = max(0.0, dot(-refnorm, normalize(pos - refpos))); + // darken reflections from points which face away from the reflected ray - our guess was a back-face + //refapprop *= step(dot(refnorm, refn), 0.0); + refapprop = min(refapprop, max(0.0, -dot(refnorm, refn))); // more conservative variant + // get appropriate light strength for guess-point. + // reflect light direction to increase the illusion that + // these are reflections. + vec3 reflight = reflect(lightnorm.xyz, norm.xyz); + float reflit = min(max(dot(refn, reflight.xyz), 0.0), refshad); + // apply sun color to guess-point, dampen according to inappropriateness of guess + float refmod = min(refapprop, reflit); + vec3 refprod = vary_SunlitColor * refcol.rgb * refmod; + vec3 ssshiny = (refprod * spec.a); + + // add the two types of shiny together + col += (ssshiny + dumbshiny) * spec.rgb; } col = atmosLighting(col); diff --git a/indra/newview/app_settings/shaders/class3/lighting/sumLightsV.glsl b/indra/newview/app_settings/shaders/class3/lighting/sumLightsV.glsl index 1c5234c450..f129a1517b 100644 --- a/indra/newview/app_settings/shaders/class3/lighting/sumLightsV.glsl +++ b/indra/newview/app_settings/shaders/class3/lighting/sumLightsV.glsl @@ -6,7 +6,7 @@ */ float calcDirectionalLight(vec3 n, vec3 l); -float calcPointLight(vec3 v, vec3 n, vec4 lp, float la); +float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight); vec3 atmosAmbient(vec3 light); vec3 atmosAffectDirectionalLight(float lightIntensity); @@ -15,24 +15,21 @@ vec3 scaleUpLight(vec3 light); vec4 sumLights(vec3 pos, vec3 norm, vec4 color, vec4 baseLight) { - vec4 col; - col.a = color.a; + vec4 col = vec4(0.0, 0.0, 0.0, color.a); - // Add windlight lights - col.rgb = atmosAffectDirectionalLight(calcDirectionalLight(norm, gl_LightSource[0].position.xyz)); - col.rgb += atmosAmbient(baseLight.rgb); - col.rgb = scaleUpLight(col.rgb); - // Collect normal lights (need to be divided by two, as we later multiply by 2) - col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLight(pos, norm, gl_LightSource[2].position, gl_LightSource[2].linearAttenuation); - col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLight(pos, norm, gl_LightSource[3].position, gl_LightSource[3].linearAttenuation); - col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLight(pos, norm, gl_LightSource[4].position, gl_LightSource[4].linearAttenuation); - col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLight(pos, norm, gl_LightSource[5].position, gl_LightSource[5].linearAttenuation); - col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLight(pos, norm, gl_LightSource[6].position, gl_LightSource[6].linearAttenuation); - col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLight(pos, norm, gl_LightSource[7].position, gl_LightSource[7].linearAttenuation); + col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a); + col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a); + col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a); + col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].spotDirection.xyz, gl_LightSource[5].linearAttenuation, gl_LightSource[5].specular.a); + col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].spotDirection.xyz, gl_LightSource[6].linearAttenuation, gl_LightSource[6].specular.a); + col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].spotDirection.xyz, gl_LightSource[7].linearAttenuation, gl_LightSource[7].specular.a); col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz); col.rgb = scaleDownLight(col.rgb); - + + // Add windlight lights + col.rgb += atmosAffectDirectionalLight(calcDirectionalLight(norm, gl_LightSource[0].position.xyz)); + col.rgb += atmosAmbient(baseLight.rgb); col.rgb = min(col.rgb*color.rgb, 1.0); 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