1 files changed, 87 insertions, 0 deletions

diff --git a/linden/indra/newview/app_settings/shaders/class3/deferred/postgiF.glsl b/linden/indra/newview/app_settings/shaders/class3/deferred/postgiF.glsl
new file mode 100644
index 0000000..12a5f39
--- /dev/null
+++ b/linden/indra/newview/app_settings/shaders/class3/deferred/postgiF.glsl
@@ -0,0 +1,87 @@
+/** 
+ * @file postgiF.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+uniform sampler2DRect depthMap;
+uniform sampler2DRect normalMap;
+uniform sampler2DRect giLightMap;
+uniform sampler2D       noiseMap;
+
+uniform vec2 kern[32];
+uniform float dist_factor;
+uniform float blur_size;
+uniform vec2 delta;
+uniform int kern_length;
+uniform float kern_scale;
+uniform vec3 blur_quad;
+
+varying vec2 vary_fragcoord;
+
+uniform mat4 inv_proj;
+uniform vec2 screen_res;
+
+vec4 getPosition(vec2 pos_screen)
+{
+        float depth = texture2DRect(depthMap, pos_screen.xy).a;
+        vec2 sc = pos_screen.xy*2.0;
+        sc /= screen_res;
+        sc -= vec2(1.0,1.0);
+        vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0);
+        vec4 pos = inv_proj * ndc;
+        pos /= pos.w;
+        pos.w = 1.0;
+        return pos;
+}
+
+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);
+                
+        vec3 ccol = texture2DRect(giLightMap, vary_fragcoord.xy).rgb;
+        vec2 dlt = kern_scale * delta/(vec2(1.0,1.0)+norm.xy*norm.xy);
+        dlt /= clamp(-depth*blur_quad.x, 1.0, 3.0);
+        float defined_weight = kern[0].x;
+        vec3 col = ccol*kern[0].x;
+        
+        for (int i = 0; i < kern_length; i++)
+        {
+                vec2 tc = vary_fragcoord.xy + kern[i].y*dlt;
+            vec3 sampNorm = texture2DRect(normalMap, tc.xy).xyz*2.0-1.0;
+            
+           float d = dot(norm.xyz, sampNorm);
+                
+                if (d > 0.5)
+                {
+                        float sampdepth = getDepth(tc.xy);
+                        sampdepth -= depth;
+                        if (sampdepth*sampdepth < blur_quad.z)
+                        {
+                        col += texture2DRect(giLightMap, tc).rgb*kern[i].x;
+                                defined_weight += kern[i].x;
+                        }
+                }
+        }
+
+        col /= defined_weight;
+        
+        //col = ccol;
+        
+        col = col*blur_quad.y;
+        
+        gl_FragData[0].xyz = col;
+        
+        //gl_FragColor = ccol;
+}