1 files changed, 48 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class1/interface/alphamaskF.glsl b/indra/newview/app_settings/shaders/class1/interface/alphamaskF.glsl
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+++ b/indra/newview/app_settings/shaders/class1/interface/alphamaskF.glsl
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+/** 
+ * @file alphamaskF.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
+ * $/LicenseInfo$
+ */
+
+#ifdef DEFINE_GL_FRAGCOLOR
+out vec4 frag_color;
+#else
+#define frag_color gl_FragColor
+#endif
+
+uniform sampler2D diffuseMap;
+
+uniform float minimum_alpha;
+
+VARYING vec2 vary_texcoord0;
+VARYING vec4 vertex_color;
+
+void main() 
+{
+	vec4 col = vertex_color*texture2D(diffuseMap, vary_texcoord0.xy);
+	if (col.a < minimum_alpha)
+	{
+		discard;
+	}
+
+	frag_color = col;
+}