atmosphericsFuncs.glsl

/**
 * @file class1\windlight\atmosphericsFuncs.glsl
 *
 * $LicenseInfo:firstyear=2005&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2019, 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
 * $/LicenseInfo$
 */

// debug stub

float getAmbientClamp() { return 1.0f; }

// Returns colors in sRGB
void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive,
                         out vec3 atten, bool use_ao)
{
    amblit = vec3(0.2, 0, 0.2);
    sunlit = vec3(1,0,1);
    additive = vec3(0.5,0.5,0.5);
    atten = vec3(1,0,1);
}

void calcAtmosphericVarsLinear(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive,
                         out vec3 atten, bool use_ao)
{
    amblit = vec3(0.2, 0, 0.2);
    sunlit = vec3(1,0,1);
    additive = vec3(0.5,0.5,0.5);
    atten = vec3(1,0,1);
}