1 files changed, 53 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class1/interface/gaussianF.glsl b/indra/newview/app_settings/shaders/class1/interface/gaussianF.glsl
new file mode 100644
index 0000000000..eca591d387
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+++ b/indra/newview/app_settings/shaders/class1/interface/gaussianF.glsl
@@ -0,0 +1,53 @@
+/** 
+ * @file gaussianF.glsl
+ *
+ * $LicenseInfo:firstyear=2023&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2023, 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
+ * $/LicenseInfo$
+ */
+
+out vec4 frag_color;
+
+uniform sampler2D diffuseRect;
+
+uniform float resScale;
+
+// texture direction, will be <1, 0> or <0, 1>
+uniform vec2 direction;
+
+in vec2 vary_texcoord0;
+
+// get linear depth value given a depth buffer sample d and znear and zfar values
+float linearDepth(float d, float znear, float zfar);
+
+void main() 
+{
+    vec3 col = vec3(0,0,0);
+
+    float w[9] = float[9]( 0.0002, 0.0060, 0.0606, 0.2417, 0.3829, 0.2417, 0.0606, 0.0060, 0.0002 );
+    
+    for (int i = 0; i < 9; ++i)
+    {
+        vec2 tc = vary_texcoord0 + (i-4)*direction*resScale;
+        col += texture(diffuseRect, tc).rgb * w[i];
+    }
+
+    frag_color = max(vec4(col, 0.0), vec4(0));
+}