53 lines
1.6 KiB
GLSL
53 lines
1.6 KiB
GLSL
/**
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* @file class2\wl\atmosphericsF.glsl
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*
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* $LicenseInfo:firstyear=2007&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2007, 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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vec3 getAdditiveColor();
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vec3 getAtmosAttenuation();
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vec3 scaleSoftClipFrag(vec3 light);
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vec3 srgb_to_linear(vec3 col);
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vec3 linear_to_srgb(vec3 col);
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uniform float sky_hdr_scale;
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vec3 atmosFragLighting(vec3 light, vec3 additive, vec3 atten)
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{
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light *= atten.r;
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additive = srgb_to_linear(additive*2.0);
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additive *= sky_hdr_scale;
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light += additive;
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return light;
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}
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vec3 atmosFragLightingLinear(vec3 light, vec3 additive, vec3 atten)
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{
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return atmosFragLighting(light, additive, atten);
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}
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vec3 atmosLighting(vec3 light)
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{
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return atmosFragLighting(light, getAdditiveColor(), getAtmosAttenuation());
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}
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