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path: root/indra/newview/app_settings/shaders/class1/windlight/atmosphericsHelpersV.glsl
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/** 
 * @file atmosphericsHelpersV.glsl 
 *
 * Copyright (c) 2005-$CurrentYear$, Linden Research, Inc.
 * $License$
 */

vec3 atmosAmbient(vec3 light)
{
	return gl_LightModel.ambient.rgb + light;
}

vec3 atmosAffectDirectionalLight(float lightIntensity)
{
	return gl_LightSource[0].diffuse.rgb * lightIntensity;
}

vec3 atmosGetDiffuseSunlightColor()
{
	return gl_LightSource[0].diffuse.rgb;
}

vec3 scaleDownLight(vec3 light)
{
	/* stub function for fallback compatibility on class1 hardware */
	return light;
}

vec3 scaleUpLight(vec3 light)
{
	/* stub function for fallback compatibility on class1 hardware */
	return light;
}