/indra/newview/app_settings/shaders/class2/windlight/atmosphericsHelpersV.glsl
Unknown | 61 lines | 51 code | 10 blank | 0 comment | 0 complexity | 23d0e44363b44aafa56cba43f5adadc5 MD5 | raw file
Possible License(s): LGPL-2.1
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 26 27 28// Output variables 29vec3 getSunlitColor(); 30vec3 getAmblitColor(); 31vec3 getAdditiveColor(); 32vec3 getAtmosAttenuation(); 33vec3 getPositionEye(); 34 35uniform float scene_light_strength; 36 37vec3 atmosAmbient(vec3 light) 38{ 39 return getAmblitColor() + light / 2.0; 40} 41 42vec3 atmosAffectDirectionalLight(float lightIntensity) 43{ 44 return getSunlitColor() * lightIntensity; 45} 46 47vec3 atmosGetDiffuseSunlightColor() 48{ 49 return getSunlitColor(); 50} 51 52vec3 scaleDownLight(vec3 light) 53{ 54 return (light / scene_light_strength ); 55} 56 57vec3 scaleUpLight(vec3 light) 58{ 59 return (light * scene_light_strength); 60} 61