Pull merge from lindenlab/viewer-release

1 files changed, 183 insertions, 28 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..1022c23f7b 100644..100755
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -38,7 +38,6 @@ uniform sampler2DRect lightMap;
 uniform sampler2DRect depthMap;
 uniform samplerCube environmentMap;
 uniform sampler2D	  lightFunc;
-uniform vec3 gi_quad;
 
 uniform float blur_size;
 uniform float blur_fidelity;
@@ -60,16 +59,13 @@ 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;
 uniform mat3 ssao_effect_mat;
 
-uniform mat4 inv_proj;
-uniform vec2 screen_res;
-
 uniform vec3 sun_dir;
-
 VARYING vec2 vary_fragcoord;
 
 vec3 vary_PositionEye;
@@ -79,6 +75,63 @@ vec3 vary_AmblitColor;
 vec3 vary_AdditiveColor;
 vec3 vary_AtmosAttenuation;
 
+uniform mat4 inv_proj;
+uniform vec2 screen_res;
+
+vec3 srgb_to_linear(vec3 cs)
+{
+	vec3 low_range = cs / vec3(12.92);
+	vec3 high_range = pow((cs+vec3(0.055))/vec3(1.055), vec3(2.4));
+	bvec3 lte = lessThanEqual(cs,vec3(0.04045));
+
+#ifdef OLD_SELECT
+	vec3 result;
+	result.r = lte.r ? low_range.r : high_range.r;
+	result.g = lte.g ? low_range.g : high_range.g;
+	result.b = lte.b ? low_range.b : high_range.b;
+    return result;
+#else
+	return mix(high_range, low_range, lte);
+#endif
+
+}
+
+vec3 linear_to_srgb(vec3 cl)
+{
+	cl = clamp(cl, vec3(0), vec3(1));
+	vec3 low_range  = cl * 12.92;
+	vec3 high_range = 1.055 * pow(cl, vec3(0.41666)) - 0.055;
+	bvec3 lt = lessThan(cl,vec3(0.0031308));
+
+#ifdef OLD_SELECT
+	vec3 result;
+	result.r = lt.r ? low_range.r : high_range.r;
+	result.g = lt.g ? low_range.g : high_range.g;
+	result.b = lt.b ? low_range.b : high_range.b;
+    return result;
+#else
+	return mix(high_range, low_range, lt);
+#endif
+
+}
+
+vec2 encode_normal(vec3 n)
+{
+	float f = sqrt(8 * n.z + 8);
+	return n.xy / f + 0.5;
+}
+
+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;
@@ -118,7 +171,6 @@ vec3 getAtmosAttenuation()
 	return vary_AtmosAttenuation;
 }
 
-
 void setPositionEye(vec3 v)
 {
 	vary_PositionEye = v;
@@ -222,11 +274,61 @@ void calcAtmospherics(vec3 inPositionEye, float ambFactor) {
 		  + tmpAmbient)));
 
 	//brightness of surface both sunlight and ambient
+	/*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);*/
+
 	setSunlitColor(vec3(sunlight * .5));
 	setAmblitColor(vec3(tmpAmbient * .25));
 	setAdditiveColor(getAdditiveColor() * vec3(1.0 - temp1));
 }
 
+#ifdef WATER_FOG
+uniform vec4 waterPlane;
+uniform vec4 waterFogColor;
+uniform float waterFogDensity;
+uniform float waterFogKS;
+
+vec4 applyWaterFogDeferred(vec3 pos, vec4 color)
+{
+	//normalize view vector
+	vec3 view = normalize(pos);
+	float es = -(dot(view, waterPlane.xyz));
+
+	//find intersection point with water plane and eye vector
+	
+	//get eye depth
+	float e0 = max(-waterPlane.w, 0.0);
+	
+	vec3 int_v = waterPlane.w > 0.0 ? view * waterPlane.w/es : vec3(0.0, 0.0, 0.0);
+	
+	//get object depth
+	float depth = length(pos - int_v);
+		
+	//get "thickness" of water
+	float l = max(depth, 0.1);
+
+	float kd = waterFogDensity;
+	float ks = waterFogKS;
+	vec4 kc = waterFogColor;
+	
+	float F = 0.98;
+	
+	float t1 = -kd * pow(F, ks * e0);
+	float t2 = kd + ks * es;
+	float t3 = pow(F, t2*l) - 1.0;
+	
+	float L = min(t1/t2*t3, 1.0);
+	
+	float D = pow(0.98, l*kd);
+	
+	color.rgb = color.rgb * D + kc.rgb * L;
+	color.a = kc.a + color.a;
+	
+	return color;
+}
+#endif
+
 vec3 atmosLighting(vec3 light)
 {
 	light *= getAtmosAttenuation().r;
@@ -239,6 +341,15 @@ vec3 atmosTransport(vec3 light) {
 	light += getAdditiveColor() * 2.0;
 	return light;
 }
+
+vec3 fullbrightAtmosTransport(vec3 light) {
+	float brightness = dot(light.rgb, vec3(0.33333));
+
+	return mix(atmosTransport(light.rgb), light.rgb + getAdditiveColor().rgb, brightness * brightness);
+}
+
+
+
 vec3 atmosGetDiffuseSunlightColor()
 {
 	return getSunlitColor();
@@ -273,65 +384,109 @@ vec3 scaleSoftClip(vec3 light)
 	return light;
 }
 
+
+vec3 fullbrightScaleSoftClip(vec3 light)
+{
+	//soft clip effect:
+	return light;
+}
+
 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); // unpack norm
 		
 	float da = max(dot(norm.xyz, sun_dir.xyz), 0.0);
-	
+
+	float light_gamma = 1.0/1.3;
+	da = pow(da, light_gamma);
+
+
 	vec4 diffuse = texture2DRect(diffuseRect, tc);
 
+	//convert to gamma space
+	diffuse.rgb = linear_to_srgb(diffuse.rgb);
+	
 	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;
+		scol_ambocc = pow(scol_ambocc, vec2(light_gamma));
+
 		float scol = max(scol_ambocc.r, diffuse.a); 
+
+		
+
 		float ambocc = scol_ambocc.g;
 	
 		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.rgb *= ambient;
+
+		col += atmosAffectDirectionalLight(max(min(da, scol), 0.0));
 	
 		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;
+		}
+	
+		
+		col = mix(col, diffuse.rgb, diffuse.a);
 
-			//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 = atmosLighting(col);
-		col = scaleSoftClip(col);
+			vec3 refcol = textureCube(environmentMap, env_vec).rgb;
 
-		col = mix(col, diffuse.rgb, diffuse.a);
-	}
-	else
-	{
-		col = diffuse.rgb;
+			col = mix(col.rgb, refcol, 
+				envIntensity);  
+
+		}
+						
+		if (norm.w < 0.5)
+		{
+			col = mix(atmosLighting(col), fullbrightAtmosTransport(col), diffuse.a);
+			col = mix(scaleSoftClip(col), fullbrightScaleSoftClip(col), diffuse.a);
+		}
+
+		#ifdef WATER_FOG
+			vec4 fogged = applyWaterFogDeferred(pos,vec4(col, bloom));
+			col = fogged.rgb;
+			bloom = fogged.a;
+		#endif
+
+		col = srgb_to_linear(col);
+
+		//col = vec3(1,0,1);
+		//col.g = envIntensity;
 	}
-		
+	
 	frag_color.rgb = col;
 	frag_color.a = bloom;
 }