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/indra/newview/app_settings/shaders/class1/windlight/atmosphericsHelpersV.glsl

https://bitbucket.org/lindenlab/viewer-beta/
Unknown | 55 lines | 48 code | 7 blank | 0 comment | 0 complexity | 73cbfeb118af3adfe0708a9f02bd0279 MD5 | raw file
 1/** 
 2 * @file atmosphericsHelpersV.glsl 
 3 *
 4 * $LicenseInfo:firstyear=2005&license=viewerlgpl$
 5 * Second Life Viewer Source Code
 6 * Copyright (C) 2005, 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 
26uniform vec4 sunlight_color_copy;
27uniform vec4 light_ambient;
28
29vec3 atmosAmbient(vec3 light)
30{
31	return light + light_ambient.rgb;
32}
33
34vec3 atmosAffectDirectionalLight(float lightIntensity)
35{
36	return sunlight_color_copy.rgb * lightIntensity;
37}
38
39vec3 atmosGetDiffuseSunlightColor()
40{
41	return sunlight_color_copy.rgb;
42}
43
44vec3 scaleDownLight(vec3 light)
45{
46	/* stub function for fallback compatibility on class1 hardware */
47	return light;
48}
49
50vec3 scaleUpLight(vec3 light)
51{
52	/* stub function for fallback compatibility on class1 hardware */
53	return light;
54}
55