1 files changed, 90 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/cofF.glsl b/indra/newview/app_settings/shaders/class1/deferred/cofF.glsl
new file mode 100644
index 0000000000..ccbc3c557c
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+++ b/indra/newview/app_settings/shaders/class1/deferred/cofF.glsl
@@ -0,0 +1,90 @@
+/** 
+ * @file cofF.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2007, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#extension GL_ARB_texture_rectangle : enable
+
+#ifdef DEFINE_GL_FRAGCOLOR
+out vec4 frag_color;
+#else
+#define frag_color gl_FragColor
+#endif
+
+uniform sampler2DRect diffuseRect;
+uniform sampler2DRect depthMap;
+uniform sampler2D bloomMap;
+
+uniform float depth_cutoff;
+uniform float norm_cutoff;
+uniform float focal_distance;
+uniform float blur_constant;
+uniform float tan_pixel_angle;
+uniform float magnification;
+uniform float max_cof;
+
+uniform mat4 inv_proj;
+uniform vec2 screen_res;
+
+VARYING vec2 vary_fragcoord;
+
+float getDepth(vec2 pos_screen)
+{
+	float z = texture2DRect(depthMap, pos_screen.xy).r;
+	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;
+}
+
+float calc_cof(float depth)
+{
+	float sc = (depth-focal_distance)/-depth*blur_constant;
+		
+	sc /= magnification;
+	
+	// tan_pixel_angle = pixel_length/-depth;
+	float pixel_length =  tan_pixel_angle*-focal_distance;
+	
+	sc = sc/pixel_length;
+	sc *= 1.414;
+	
+	return sc;
+}
+
+void main() 
+{
+	vec2 tc = vary_fragcoord.xy;
+	
+	float depth = getDepth(tc);
+	
+	vec4 diff = texture2DRect(diffuseRect, vary_fragcoord.xy);
+	
+	float sc = calc_cof(depth);
+	sc = min(sc, max_cof);
+	sc = max(sc, -max_cof);
+	
+	vec4 bloom = texture2D(bloomMap, vary_fragcoord.xy/screen_res);
+	frag_color.rgb = diff.rgb + bloom.rgb;
+	frag_color.a = sc/max_cof*0.5+0.5;
+}