1 files changed, 10 insertions, 3 deletions
diff --git a/indra/newview/app_settings/shaders/class2/windlight/atmosphericsV.glsl b/indra/newview/app_settings/shaders/class2/windlight/atmosphericsV.glsl
index da3d922017..d543479b85 100644
--- a/indra/newview/app_settings/shaders/class2/windlight/atmosphericsV.glsl
+++ b/indra/newview/app_settings/shaders/class2/windlight/atmosphericsV.glsl
@@ -54,6 +54,7 @@ uniform float density_multiplier;
 uniform float distance_multiplier;
 uniform float max_y;
 uniform vec4 glow;
+uniform float global_gamma;
 
 void calcAtmospherics(vec3 inPositionEye) {
 
@@ -129,11 +130,17 @@ void calcAtmospherics(vec3 inPositionEye) {
 		vec3(blue_horizon * blue_weight * (sunlight*(1.-cloud_shadow) + tmpAmbient)
 	  + (haze_horizon * haze_weight) * (sunlight*(1.-cloud_shadow) * temp2.x
 		  + tmpAmbient)));
+	
+	float gammaScale = 1.0;
+	if (global_gamma > 1.0)
+	{
+		gammaScale = global_gamma / 2 + global_gamma;
+	}
 
 	//brightness of surface both sunlight and ambient
-	setSunlitColor(vec3(sunlight * .5));
-	setAmblitColor(vec3(tmpAmbient * .25));
-	setAdditiveColor(getAdditiveColor() * vec3(1.0 - temp1));
+	setSunlitColor(pow(vec3(sunlight * .5), vec3(global_gamma)) * gammaScale);
+	setAmblitColor(pow(vec3(tmpAmbient * .25), vec3(global_gamma)) * gammaScale);
+	setAdditiveColor(pow(getAdditiveColor() * vec3(1.0 - temp1), vec3(global_gamma)) * gammaScale);
 
 	// vary_SunlitColor = vec3(0);
 	// vary_AmblitColor = vec3(0);