Cheapo sun bloom contribution in deferred.

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

@@ -60,7 +60,7 @@ void main()
 
 	/// Gamma correct for WL (soft clip effect).
 	frag_data[0] = vec4(scaleSoftClip(color.rgb), 1.0);
-	frag_data[1] = vec4(0.0,0.0,0.0,0.0);
+	frag_data[1] = vec4(vary_HazeColor.a,0.0,0.0,0.0);
 //#define PACK_NORMALS
 #ifdef PACK_NORMALS
 	frag_data[2] = vec4(0.5,0.5,0.0,0.0);

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

@@ -53,6 +53,13 @@ uniform vec4 glow;
 
 uniform vec4 cloud_color;
 
+float luminance(vec3 color)
+{
+	/// CALCULATING LUMINANCE (Using NTSC lum weights)
+	/// http://en.wikipedia.org/wiki/Luma_%28video%29
+	return dot(color, vec3(0.299, 0.587, 0.114));
+}
+
 void main()
 {
 
@@ -151,6 +158,7 @@ void main()
 	// At horizon, blend high altitude sky color towards the darker color below the clouds
 	vary_HazeColor += (additiveColorBelowCloud - vary_HazeColor) * (1. - sqrt(temp1));
 	
+	vary_HazeColor.a = pow(clamp(luminance(vary_HazeColor.rgb)-.5,0,1),2);
 	// won't compile on mac without this being set
 	//vary_AtmosAttenuation = vec3(0.0,0.0,0.0);
 }

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

@@ -332,10 +332,11 @@ void main()
 		col = atmosLighting(col);
 		col = scaleSoftClip(col);
 
-		col = mix(col.rgb, diffuse.rgb, diffuse.a);
+		col = mix(col, diffuse.rgb, diffuse.a);
 	}
 	else
 	{
+		bloom = spec.r;
 		col = diffuse.rgb;
 	}
 

indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl

@@ -297,14 +297,13 @@ void main()
 	float da = max(dot(norm.xyz, sun_dir.xyz), 0.0);
 	
 	vec4 diffuse = texture2DRect(diffuseRect, tc);
+	vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy);
 
 	vec3 col;
 	float bloom = 0.0;
 
 	if (diffuse.a < 0.9)
 	{
-		vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy);
-		
 		vec2 scol_ambocc = texture2DRect(lightMap, vary_fragcoord.xy).rg;
 		float scol = max(scol_ambocc.r, diffuse.a); 
 		float ambocc = scol_ambocc.g;
@@ -344,6 +343,7 @@ void main()
 	}
 	else
 	{
+		bloom = spec.r;
 		col = diffuse.rgb;
 	}