54 lines
1.3 KiB
Plaintext
54 lines
1.3 KiB
Plaintext
/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "stdosl.h"
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#include "node_texture.h"
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/* Voronoi */
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shader node_voronoi_texture(
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int use_mapping = 0,
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matrix mapping = matrix(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
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string coloring = "intensity",
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float Scale = 5.0,
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point Vector = P,
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output float Fac = 0.0,
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output color Color = 0.0)
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{
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point p = Vector;
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if (use_mapping)
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p = transform(mapping, p);
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/* compute distance and point coordinate of 4 nearest neighbours */
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float da[4];
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point pa[4];
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voronoi(p * Scale, 1.0, da, pa);
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/* Colored output */
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if (coloring == "intensity") {
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Fac = fabs(da[0]);
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Color = color(Fac);
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}
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else {
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Color = cellnoise_color(pa[0]);
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Fac = (Color[0] + Color[1] + Color[2]) * (1.0 / 3.0);
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}
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}
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