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/**
* @file class2\wl\atmosphericsV.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
* $/LicenseInfo$
*/
// out param funcs
uniform vec3 sun_dir;
uniform vec3 moon_dir;
uniform int sun_up_factor;
void setSunlitColor(vec3 v);
void setAmblitColor(vec3 v);
void setAdditiveColor(vec3 v);
void setAtmosAttenuation(vec3 v);
void setPositionEye(vec3 v);
vec3 getAdditiveColor();
void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive, out vec3 atten);
void calcAtmospherics(vec3 inPositionEye) {
vec3 P = inPositionEye;
setPositionEye(P);
vec3 tmpsunlit = vec3(1);
vec3 tmpamblit = vec3(1);
vec3 tmpaddlit = vec3(1);
vec3 tmpattenlit = vec3(1);
vec3 light_dir = (sun_up_factor == 1) ? sun_dir : moon_dir;
calcAtmosphericVars(inPositionEye, light_dir, 1, tmpsunlit, tmpamblit, tmpaddlit, tmpattenlit);
setSunlitColor(tmpsunlit);
setAmblitColor(tmpamblit);
setAdditiveColor(tmpaddlit);
setAtmosAttenuation(tmpattenlit);
}
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