/indra/newview/app_settings/shaders/class1/objects/impostorF.glsl

 1/** 
 2 * @file impostorF.glsl
 3 *
 4 * $LicenseInfo:firstyear=2011&license=viewerlgpl$
 5 * Second Life Viewer Source Code
 6 * Copyright (C) 2011, Linden Research, Inc.
 7 * 
 8 * This library is free software; you can redistribute it and/or
 9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation;
11 * version 2.1 of the License only.
12 * 
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * Lesser General Public License for more details.
17 * 
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
21 * 
22 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
23 * $/LicenseInfo$
24 */
25
26#ifdef DEFINE_GL_FRAGCOLOR
27out vec4 gl_FragColor;
28#endif
29
30uniform float minimum_alpha;
31
32uniform sampler2D diffuseMap;
33
34VARYING vec2 vary_texcoord0;
35
36void main()
37{
38	vec4 color = texture2D(diffuseMap,vary_texcoord0.xy);
39	
40	if (color.a < minimum_alpha)
41	{
42		discard;
43	}
44
45	gl_FragColor = color;
46}