112 lines
2.1 KiB
Plaintext
112 lines
2.1 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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/* Magic */
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color magic(point p, int n, float distortion)
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{
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float dist = distortion;
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float x = sin(( p[0] + p[1] + p[2]) * 5.0);
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float y = cos((-p[0] + p[1] - p[2]) * 5.0);
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float z = -cos((-p[0] - p[1] + p[2]) * 5.0);
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if (n > 0) {
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x *= dist;
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y *= dist;
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z *= dist;
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y = -cos(x - y + z);
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y *= dist;
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if (n > 1) {
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x = cos(x - y - z);
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x *= dist;
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if (n > 2) {
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z = sin(-x - y - z);
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z *= dist;
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if (n > 3) {
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x = -cos(-x + y - z);
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x *= dist;
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if (n > 4) {
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y = -sin(-x + y + z);
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y *= dist;
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if (n > 5) {
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y = -cos(-x + y + z);
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y *= dist;
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if (n > 6) {
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x = cos(x + y + z);
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x *= dist;
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if (n > 7) {
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z = sin(x + y - z);
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z *= dist;
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if (n > 8) {
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x = -cos(-x - y + z);
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x *= dist;
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if (n > 9) {
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y = -sin(x - y + z);
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y *= dist;
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}
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}
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}
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}
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}
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}
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}
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}
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}
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}
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if (dist != 0.0) {
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dist *= 2.0;
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x /= dist;
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y /= dist;
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z /= dist;
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}
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return color(0.5 - x, 0.5 - y, 0.5 - z);
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}
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shader node_magic_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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int depth = 2,
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float Distortion = 5.0,
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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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Color = magic(p * Scale, depth, Distortion);
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Fac = (Color[0] + Color[1] + Color[2]) * (1.0 / 3.0);
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}
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