/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
 *
 * SPDX-License-Identifier: Apache-2.0 */

#include "stdcycles.h"

shader node_subsurface_scattering(color Color = 0.8,
                                  float Scale = 1.0,
                                  vector Radius = vector(0.1, 0.1, 0.1),
                                  float IOR = 1.4,
                                  float Roughness = 1.0,
                                  float Anisotropy = 0.0,
                                  string method = "random_walk",
                                  normal Normal = N,
                                  output closure color BSSRDF = 0)
{
  color base_color = max(Color, color(0.0));
  BSSRDF = base_color * bssrdf(method,
                               Normal,
                               Scale * Radius,
                               base_color,
                               "ior",
                               IOR,
                               "anisotropy",
                               Anisotropy,
                               "roughness",
                               clamp(Roughness, 0.0, 1.0));
}