1 files changed, 58 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl b/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl
new file mode 100644
index 0000000000..02beddd43b
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl
@@ -0,0 +1,58 @@
+/** 
+ * @file edgeF.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#extension GL_ARB_texture_rectangle : enable
+
+uniform sampler2DRect depthMap;
+uniform sampler2DRect normalMap;
+
+uniform float gi_dist_cutoff;
+
+varying vec2 vary_fragcoord;
+
+uniform float depth_cutoff;
+uniform float norm_cutoff;
+
+uniform mat4 inv_proj;
+uniform vec2 screen_res;
+
+float getDepth(vec2 pos_screen)
+{
+	float z = texture2DRect(depthMap, pos_screen.xy).a;
+	z = z*2.0-1.0;
+	vec4 ndc = vec4(0.0, 0.0, z, 1.0);
+	vec4 p = inv_proj*ndc;
+	return p.z/p.w;
+}
+
+void main() 
+{
+	vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz*2.0-1.0;
+	float depth = getDepth(vary_fragcoord.xy);
+	
+	vec2 tc = vary_fragcoord.xy;
+	
+	float sc = 0.75;
+	
+	vec2 de;
+	de.x = (depth-getDepth(tc+vec2(sc, sc))) + (depth-getDepth(tc+vec2(-sc, -sc)));
+	de.y = (depth-getDepth(tc+vec2(-sc, sc))) + (depth-getDepth(tc+vec2(sc, -sc)));
+	de /= depth;
+	de *= de;
+	de = step(depth_cutoff, de);
+	
+	vec2 ne;
+	ne.x = dot(texture2DRect(normalMap, tc+vec2(-sc,-sc)).rgb*2.0-1.0, norm);
+	ne.y = dot(texture2DRect(normalMap, tc+vec2(sc,sc)).rgb*2.0-1.0, norm);
+	
+	ne = 1.0-ne;
+	
+	ne = step(norm_cutoff, ne);
+	
+	gl_FragColor.a = dot(de,de)+dot(ne,ne);
+	//gl_FragColor.a = dot(de,de);
+}