Fix for overbrigtened alpha blended objects in deferred. Linearize diffuse surface color in the vertex shader before passing it to the fragment shader.

indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl

@@ -172,17 +172,19 @@ void main()
 	//vec4 color = calcLighting(pos.xyz, norm, diffuse_color, vec4(0.));
 	vec4 col = vec4(0.0, 0.0, 0.0, diffuse_color.a);
 	
-	vary_pointlight_col = diffuse_color.rgb;
+	vec3 diff = pow(diffuse_color.rgb, vec3(2.2));
+	
+	vary_pointlight_col = diff;
 	
 	col.rgb = vec3(0,0,0);
 
 	// Add windlight lights
 	col.rgb = atmosAmbient(vec3(0.));
 	
-	vary_ambient = col.rgb*diffuse_color.rgb;
+	vary_ambient = col.rgb*diff;
 	vary_directional.rgb = atmosAffectDirectionalLight(1);
 	
-	col.rgb = col.rgb*diffuse_color.rgb;
+	col.rgb = col.rgb*diff;
 #if INDEX_MODE != NON_INDEXED_NO_COLOR
 	vertex_color = col;
 #endif