1 files changed, 41 insertions, 21 deletions

diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 9df9d75905..ee6aaddb00 100755
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -60,6 +60,7 @@ uniform float density_multiplier;
 uniform float distance_multiplier;
 uniform float max_y;
 uniform vec4 glow;
+uniform float global_gamma;
 uniform float scene_light_strength;
 uniform mat3 env_mat;
 uniform vec4 shadow_clip;
@@ -79,6 +80,17 @@ vec3 vary_AmblitColor;
 vec3 vary_AdditiveColor;
 vec3 vary_AtmosAttenuation;
 
+vec3 decode_normal (vec2 enc)
+{
+    vec2 fenc = enc*4-2;
+    float f = dot(fenc,fenc);
+    float g = sqrt(1-f/4);
+    vec3 n;
+    n.xy = fenc*g;
+    n.z = 1-f/2;
+    return n;
+}
+
 vec4 getPosition_d(vec2 pos_screen, float depth)
 {
 	vec2 sc = pos_screen.xy*2.0;
@@ -222,9 +234,9 @@ void calcAtmospherics(vec3 inPositionEye, float ambFactor) {
 		  + tmpAmbient)));
 
 	//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)) * global_gamma);
+	setAmblitColor(pow(vec3(tmpAmbient * .25), vec3(global_gamma)) * global_gamma);
+	setAdditiveColor(pow(getAdditiveColor() * vec3(1.0 - temp1), vec3(global_gamma)) * global_gamma);
 }
 
 vec3 atmosLighting(vec3 light)
@@ -278,17 +290,16 @@ void main()
 	vec2 tc = vary_fragcoord.xy;
 	float depth = texture2DRect(depthMap, tc.xy).r;
 	vec3 pos = getPosition_d(tc, depth).xyz;
-	vec3 norm = texture2DRect(normalMap, tc).xyz;
-	norm = (norm.xyz-0.5)*2.0; // unpack norm
-		
+	vec4 norm = texture2DRect(normalMap, tc);
+	float envIntensity = norm.z;
+	norm.xyz = decode_normal(norm.xy);
 	float da = max(dot(norm.xyz, sun_dir.xyz), 0.0);
-	
-	vec4 diffuse = texture2DRect(diffuseRect, tc);
 
+	vec4 diffuse = texture2DRect(diffuseRect, tc);
+	
 	vec3 col;
 	float bloom = 0.0;
 
-	if (diffuse.a < 0.9)
 	{
 		vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy);
 		
@@ -299,38 +310,47 @@ void main()
 		calcAtmospherics(pos.xyz, ambocc);
 	
 		col = atmosAmbient(vec3(0));
-		col += atmosAffectDirectionalLight(max(min(da, scol), diffuse.a));
+
+		float ambient = min(abs(dot(norm.xyz, sun_dir.xyz)), 1.0);
+		ambient *= 0.5;
+		ambient *= ambient;
+		ambient = (1.0-ambient);
+
+		col *= ambient;
+
+		col += atmosAffectDirectionalLight(max(min(da, scol) * 2.6, diffuse.a));
 	
 		col *= diffuse.rgb;
 	
+		vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz));
+
 		if (spec.a > 0.0) // specular reflection
 		{
 			// the old infinite-sky shiny reflection
 			//
-			vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz));
+			
 			float sa = dot(refnormpersp, sun_dir.xyz);
-			vec3 dumbshiny = vary_SunlitColor*scol_ambocc.r*(6 * texture2D(lightFunc, vec2(sa, spec.a)).r);
+			vec3 dumbshiny = vary_SunlitColor*scol_ambocc.r*(texture2D(lightFunc, vec2(sa, spec.a)).r);
 
 			// add the two types of shiny together
 			vec3 spec_contrib = dumbshiny * spec.rgb;
-			bloom = dot(spec_contrib, spec_contrib) / 4;
+			bloom = dot(spec_contrib, spec_contrib) / 6;
 			col += spec_contrib;
+		}
 
-			//add environmentmap
+		if (envIntensity > 0.0)
+		{ //add environmentmap
 			vec3 env_vec = env_mat * refnormpersp;
-			col = mix(col.rgb, textureCube(environmentMap, env_vec).rgb, 
-				max(spec.a-diffuse.a*2.0, 0.0)); 
+			col = mix(col.rgb, pow(textureCube(environmentMap, env_vec).rgb, vec3(2.2)) * 2.2, 
+				envIntensity); 
 		}
 			
 		col = atmosLighting(col);
 		col = scaleSoftClip(col);
 
-		col = mix(col, diffuse.rgb, diffuse.a);
-	}
-	else
-	{
-		col = diffuse.rgb;
+		col = mix(col.rgb, diffuse.rgb, diffuse.a);
 	}
+	
 		
 	frag_color.rgb = col;
 	frag_color.a = bloom;