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/*
* Copyright 2011-2013 Blender Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "node_fresnel.h"
#include "stdcycles.h"
shader node_velvet_bsdf(color Color = 0.8,
float Sigma = 0.0,
normal Normal = N,
output closure color BSDF = 0)
{
float sigma = clamp(Sigma, 0.0, 1.0);
BSDF = Color * ashikhmin_velvet(Normal, sigma);
}
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