diff options
author | Graham Linden <graham@lindenlab.com> | 2013-09-18 18:24:16 -0700 |
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committer | Graham Linden <graham@lindenlab.com> | 2013-09-18 18:24:16 -0700 |
commit | 95e34d86b9d86b3b3c7d3c39620e35b06f8fa9cf (patch) | |
tree | 5a2652bef97f1bb2d76c0b86482cebe2b2505a79 /indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | |
parent | 93503a05ec905ef2a8df39802fdc3475c961f3bc (diff) | |
parent | ad777b46d0fe5d790e43efb1771e9f64f3ad3dfb (diff) |
The unbearable lightness of being norspec
Diffstat (limited to 'indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl')
-rwxr-xr-x | indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl | 93 |
1 files changed, 91 insertions, 2 deletions
diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl index 6e05091b57..1022c23f7b 100755 --- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl +++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl @@ -78,6 +78,43 @@ vec3 vary_AtmosAttenuation; uniform mat4 inv_proj; uniform vec2 screen_res; +vec3 srgb_to_linear(vec3 cs) +{ + vec3 low_range = cs / vec3(12.92); + vec3 high_range = pow((cs+vec3(0.055))/vec3(1.055), vec3(2.4)); + bvec3 lte = lessThanEqual(cs,vec3(0.04045)); + +#ifdef OLD_SELECT + vec3 result; + result.r = lte.r ? low_range.r : high_range.r; + result.g = lte.g ? low_range.g : high_range.g; + result.b = lte.b ? low_range.b : high_range.b; + return result; +#else + return mix(high_range, low_range, lte); +#endif + +} + +vec3 linear_to_srgb(vec3 cl) +{ + cl = clamp(cl, vec3(0), vec3(1)); + vec3 low_range = cl * 12.92; + vec3 high_range = 1.055 * pow(cl, vec3(0.41666)) - 0.055; + bvec3 lt = lessThan(cl,vec3(0.0031308)); + +#ifdef OLD_SELECT + vec3 result; + result.r = lt.r ? low_range.r : high_range.r; + result.g = lt.g ? low_range.g : high_range.g; + result.b = lt.b ? low_range.b : high_range.b; + return result; +#else + return mix(high_range, low_range, lt); +#endif + +} + vec2 encode_normal(vec3 n) { float f = sqrt(8 * n.z + 8); @@ -246,6 +283,52 @@ void calcAtmospherics(vec3 inPositionEye, float ambFactor) { setAdditiveColor(getAdditiveColor() * vec3(1.0 - temp1)); } +#ifdef WATER_FOG +uniform vec4 waterPlane; +uniform vec4 waterFogColor; +uniform float waterFogDensity; +uniform float waterFogKS; + +vec4 applyWaterFogDeferred(vec3 pos, vec4 color) +{ + //normalize view vector + vec3 view = normalize(pos); + float es = -(dot(view, waterPlane.xyz)); + + //find intersection point with water plane and eye vector + + //get eye depth + float e0 = max(-waterPlane.w, 0.0); + + vec3 int_v = waterPlane.w > 0.0 ? view * waterPlane.w/es : vec3(0.0, 0.0, 0.0); + + //get object depth + float depth = length(pos - int_v); + + //get "thickness" of water + float l = max(depth, 0.1); + + float kd = waterFogDensity; + float ks = waterFogKS; + vec4 kc = waterFogColor; + + float F = 0.98; + + float t1 = -kd * pow(F, ks * e0); + float t2 = kd + ks * es; + float t3 = pow(F, t2*l) - 1.0; + + float L = min(t1/t2*t3, 1.0); + + float D = pow(0.98, l*kd); + + color.rgb = color.rgb * D + kc.rgb * L; + color.a = kc.a + color.a; + + return color; +} +#endif + vec3 atmosLighting(vec3 light) { light *= getAtmosAttenuation().r; @@ -326,7 +409,7 @@ void main() vec4 diffuse = texture2DRect(diffuseRect, tc); //convert to gamma space - diffuse.rgb = pow(diffuse.rgb, vec3(1.0/2.2)); + diffuse.rgb = linear_to_srgb(diffuse.rgb); vec3 col; float bloom = 0.0; @@ -392,7 +475,13 @@ void main() col = mix(scaleSoftClip(col), fullbrightScaleSoftClip(col), diffuse.a); } - col = pow(col, vec3(2.2)); + #ifdef WATER_FOG + vec4 fogged = applyWaterFogDeferred(pos,vec4(col, bloom)); + col = fogged.rgb; + bloom = fogged.a; + #endif + + col = srgb_to_linear(col); //col = vec3(1,0,1); //col.g = envIntensity; |