1 files changed, 70 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class3/deferred/gatherSkyShF.glsl b/indra/newview/app_settings/shaders/class3/deferred/gatherSkyShF.glsl
new file mode 100644
index 0000000000..34d26cddea
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/deferred/gatherSkyShF.glsl
@@ -0,0 +1,70 @@
+/** 
+ * @file class3/deferred/gatherSkyShF.glsl
+ *
+ * $LicenseInfo:firstyear=2005&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2005, 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
+ * $/LicenseInfo$
+ */
+ 
+#ifdef DEFINE_GL_FRAGCOLOR
+out vec4 frag_data[3];
+#else
+#define frag_data gl_FragData
+#endif
+
+VARYING vec2 vary_frag;
+
+uniform vec2 screen_res;
+uniform sampler2D sh_input_r;
+uniform sampler2D sh_input_g;
+uniform sampler2D sh_input_b;
+
+void main()
+{
+    vec2 offset	  = vec2(2.0) / screen_res;
+
+    vec4 r = vec4(0);
+    vec4 g = vec4(0);
+    vec4 b = vec4(0);
+
+    vec2 tc = vary_frag * 2.0;
+
+	r += texture2D(sh_input_r, tc + vec2(0,        0));
+	r += texture2D(sh_input_r, tc + vec2(offset.x, 0));
+	r += texture2D(sh_input_r, tc + vec2(0,        offset.y));
+	r += texture2D(sh_input_r, tc + vec2(offset.x, offset.y));
+    r /= 4.0f;
+
+	g += texture2D(sh_input_g, tc + vec2(0,        0));
+	g += texture2D(sh_input_g, tc + vec2(offset.x, 0));
+	g += texture2D(sh_input_g, tc + vec2(0,        offset.y));
+	g += texture2D(sh_input_g, tc + vec2(offset.x, offset.y));
+    g /= 4.0f;
+
+	b += texture2D(sh_input_b, tc + vec2(0,        0));
+	b += texture2D(sh_input_b, tc + vec2(offset.x, 0));
+	b += texture2D(sh_input_b, tc + vec2(0,        offset.y));
+	b += texture2D(sh_input_b, tc + vec2(offset.x, offset.y));
+    b /= 4.0f;
+
+    frag_data[0] = r;
+    frag_data[1] = g;
+    frag_data[2] = b;
+}