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-rw-r--r--indra/newview/app_settings/shaders/class1/effects/glowExtractF.glsl4
1 files changed, 2 insertions, 2 deletions
diff --git a/indra/newview/app_settings/shaders/class1/effects/glowExtractF.glsl b/indra/newview/app_settings/shaders/class1/effects/glowExtractF.glsl
index dbdfe1174c..5d7af2c13a 100644
--- a/indra/newview/app_settings/shaders/class1/effects/glowExtractF.glsl
+++ b/indra/newview/app_settings/shaders/class1/effects/glowExtractF.glsl
@@ -20,8 +20,8 @@ void main()
/// CALCULATING LUMINANCE (Using NTSC lum weights)
/// http://en.wikipedia.org/wiki/Luma_%28video%29
- float lum = smoothstep(minLuminance, 1.0, dot(col.rgb, lumWeights ) );
- float warmth = smoothstep(minLuminance, 1.0, max(col.r * warmthWeights.r, max(col.g * warmthWeights.g, col.b * warmthWeights.b)) );
+ 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)) );
gl_FragColor.rgb = col.rgb;
gl_FragColor.a = max(col.a, mix(lum, warmth, warmthAmount) * maxExtractAlpha);