1 files changed, 20 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class2/windlight/atmosphericsF.glsl b/indra/newview/app_settings/shaders/class2/windlight/atmosphericsF.glsl
index ee9c990b12..ecf1545d2d 100644
--- a/indra/newview/app_settings/shaders/class2/windlight/atmosphericsF.glsl
+++ b/indra/newview/app_settings/shaders/class2/windlight/atmosphericsF.glsl
@@ -29,6 +29,26 @@ vec3 scaleSoftClipFrag(vec3 light);
 
 uniform int no_atmo;
 
+vec3 srgb_to_linear(vec3 col);
+vec3 linear_to_srgb(vec3 col);
+
+vec3 atmosFragLightingLinear(vec3 light, vec3 additive, vec3 atten)
+{
+    if (no_atmo == 1)
+    {
+        return light;
+    }
+    
+    light = linear_to_srgb(light);
+    additive = linear_to_srgb(additive);
+    atten = linear_to_srgb(atten);
+    
+    light *= atten.r;
+    light += additive;
+    return srgb_to_linear(light);
+}
+
+
 vec3 atmosFragLighting(vec3 light, vec3 additive, vec3 atten)
 {
     if (no_atmo == 1)