1 files changed, 5 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
index c8c23c6ce4..b928761358 100755
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
@@ -189,6 +189,11 @@ vec3 srgb_to_linear(vec3 cs)
     cl = {
         {  ((cs + 0.055)/1.055)^2.4,   cs >  0.04045*/
 
+	vec3 low_range = cs / vec3(12.92);
+
+	if (((cs.r + cs.g + cs.b) / 3) <= 0.04045)
+		return low_range;
+
 	return pow((cs+vec3(0.055))/vec3(1.055), vec3(2.4));
 }