1 files changed, 124 insertions, 10 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl
index dc1dead656..f22b16965c 100755
--- a/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl
@@ -35,29 +35,143 @@ out vec4 frag_color;
 uniform sampler2D diffuseMap;
 #endif
 
+VARYING vec3 vary_position;
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
 
-vec3 fullbrightAtmosTransport(vec3 light);
-vec3 fullbrightScaleSoftClip(vec3 light);
 
+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
+
+}
+
+vec3 fullbrightAtmosTransportDeferred(vec3 light)
+{
+	return light;
+}
+
+vec3 fullbrightScaleSoftClipDeferred(vec3 light)
+{
+	//soft clip effect:
+	return light;
+}
+
+#ifdef HAS_ALPHA_MASK
+uniform float minimum_alpha;
+#endif
+
+#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
 
 void main() 
 {
 #if HAS_DIFFUSE_LOOKUP
-	vec4 color = diffuseLookup(vary_texcoord0.xy)*vertex_color;
+	vec4 color = diffuseLookup(vary_texcoord0.xy);
 #else
-	vec4 color = texture2D(diffuseMap, vary_texcoord0.xy)*vertex_color;
+	vec4 color = texture2D(diffuseMap, vary_texcoord0.xy);
 #endif
 
-	color.rgb = pow(color.rgb,vec3(2.2f,2.2f,2.2f));
-	
-	color.rgb = fullbrightAtmosTransport(color.rgb);
+	float final_alpha = color.a * vertex_color.a;
 
-	color.rgb = fullbrightScaleSoftClip(color.rgb);
+#ifdef HAS_ALPHA_MASK
+	if (color.a < minimum_alpha)
+	{
+		discard;
+	}
+#endif
+
+	color.rgb *= vertex_color.rgb;
+	color.rgb = srgb_to_linear(color.rgb);
+	color.rgb = fullbrightAtmosTransportDeferred(color.rgb);
+	color.rgb = fullbrightScaleSoftClipDeferred(color.rgb);
+	
+	color.rgb = linear_to_srgb(color.rgb);
 
-	color.rgb = pow(color.rgb, vec3(1.0/2.2));
+#ifdef WATER_FOG
+	vec3 pos = vary_position;
+	vec4 fogged = applyWaterFogDeferred(pos, vec4(color.rgb, final_alpha));
+	color.rgb = fogged.rgb;
+	color.a   = fogged.a;
+#else
+	color.a   = final_alpha;
+#endif
 
-	frag_color = color;
+	frag_color.rgb = color.rgb;
+	frag_color.a   = color.a;
 }