blender/intern/cycles/kernel/shaders/node_diffuse_bsdf.osl

/*
 * 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 "stdosl.h"

shader node_diffuse_bsdf(color Color = 0.8,
                         float Roughness = 0.0,
                         normal Normal = N,
                         output closure color BSDF = 0)
{
  if (Roughness == 0.0)
    BSDF = Color * diffuse(Normal);
  else
    BSDF = Color * oren_nayar(Normal, Roughness);
}