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

/*
 * Copyright 2011-2018 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_ambient_occlusion(
	color ColorIn = color(1.0, 1.0, 1.0),
	int samples = 8,
	float Distance = 1.0,
	normal Normal = N,
	int inside = 0,
	int only_local = 1,
	output color ColorOut = color(1.0, 1.0, 1.0),
	output float AO = 1.0)
{
	int global_radius = (Distance == 0.0 && !isconnected(Distance));

	/* Abuse texture call with special @ao token. */
	AO = texture("@ao", samples, Distance, Normal[0], Normal[1], Normal[2], inside, "sblur", only_local, "tblur", global_radius);
	ColorOut = ColorIn * AO;
}