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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 "stdosl.h"
shader node_camera(
output vector ViewVector = vector(0.0, 0.0, 0.0),
output float ViewZDepth = 0.0,
output float ViewDistance = 0.0)
{
ViewVector = (vector)transform("world", "camera", P);
ViewZDepth = fabs(ViewVector[2]);
ViewDistance = length(ViewVector);
ViewVector = normalize(ViewVector);
}
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