56 lines
1.9 KiB
GLSL
56 lines
1.9 KiB
GLSL
/**
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* @file class2\wl\atmosphericsV.glsl
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*
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* $LicenseInfo:firstyear=2005&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2005, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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// out param funcs
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uniform vec3 sun_dir;
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uniform vec3 moon_dir;
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uniform int sun_up_factor;
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void setSunlitColor(vec3 v);
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void setAmblitColor(vec3 v);
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void setAdditiveColor(vec3 v);
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void setAtmosAttenuation(vec3 v);
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void setPositionEye(vec3 v);
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vec3 getAdditiveColor();
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void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive, out vec3 atten);
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void calcAtmospherics(vec3 inPositionEye) {
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vec3 P = inPositionEye;
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vec3 tmpsunlit = vec3(1);
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vec3 tmpamblit = vec3(1);
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vec3 tmpaddlit = vec3(1);
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vec3 tmpattenlit = vec3(1);
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vec3 light_dir = (sun_up_factor == 1) ? sun_dir : moon_dir;
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calcAtmosphericVars(inPositionEye, light_dir, 1, tmpsunlit, tmpamblit, tmpaddlit, tmpattenlit);
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setSunlitColor(tmpsunlit);
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setAmblitColor(tmpamblit);
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setAdditiveColor(tmpaddlit);
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setAtmosAttenuation(tmpattenlit);
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}
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