diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class1')
| -rw-r--r-- | indra/newview/app_settings/shaders/class1/effects/glowExtractF.glsl | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/indra/newview/app_settings/shaders/class1/effects/glowExtractF.glsl b/indra/newview/app_settings/shaders/class1/effects/glowExtractF.glsl index 7a5e14566b..b5437d43d2 100644 --- a/indra/newview/app_settings/shaders/class1/effects/glowExtractF.glsl +++ b/indra/newview/app_settings/shaders/class1/effects/glowExtractF.glsl @@ -28,6 +28,10 @@ out vec4 frag_color; uniform sampler2D diffuseMap; +#if HAS_NOISE +uniform sampler2D glowNoiseMap; +uniform vec2 screen_res; +#endif uniform float minLuminance; uniform float maxExtractAlpha; uniform vec3 lumWeights; @@ -44,7 +48,16 @@ void main() float lum = smoothstep(minLuminance, minLuminance+1.0, dot(col.rgb, lumWeights ) ); float warmth = smoothstep(minLuminance, minLuminance+1.0, max(col.r * warmthWeights.r, max(col.g * warmthWeights.g, col.b * warmthWeights.b)) ); - frag_color.rgb = col.rgb; +#if HAS_NOISE + float TRUE_NOISE_RES = 128; // See mTrueNoiseMap + // *NOTE: Usually this is vary_fragcoord not vary_texcoord0, but glow extraction is in screen space + vec3 glow_noise = texture(glowNoiseMap, vary_texcoord0.xy * (screen_res / TRUE_NOISE_RES)).xyz; + // Dithering. Reduces banding effects in the reduced precision glow buffer. + float NOISE_DEPTH = 64.0; + col.rgb += glow_noise / NOISE_DEPTH; + col.rgb = max(col.rgb, vec3(0)); +#endif + frag_color.rgb = col.rgb; frag_color.a = max(col.a, mix(lum, warmth, warmthAmount) * maxExtractAlpha); } |