Differential D3786 Diff 12130 intern/cycles/kernel/shaders/node_vector_rotate.osl

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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"

				/* XYZ order */
				void eul_to_mat(output matrix mat, point eul)
				{
				float ci, cj, ch, si, sj, sh, cc, cs, sc, ss;

				ci = cos(eul[0]);
				cj = cos(eul[1]);
				ch = cos(eul[2]);
				si = sin(eul[0]);
				sj = sin(eul[1]);
				sh = sin(eul[2]);
				cc = ci * ch;
				cs = ci * sh;
				sc = si * ch;
				ss = si * sh;

				mat[0][0] = (cj * ch);
				mat[1][0] = (sj * sc - cs);
				mat[2][0] = (sj * cc + ss);
				mat[0][1] = (cj * sh);
				mat[1][1] = (sj * ss + cc);
				mat[2][1] = (sj * cs - sc);
				mat[0][2] = -sj;
				mat[1][2] = (cj * si);
				mat[2][2] = (cj * ci);


				mat[3][0] = mat[3][1] = mat[3][2] = mat[0][3] = mat[1][3] = mat[2][3] = 0.0;
				mat[3][3] = 1.0;
				}

				shader node_vector_rotate(
				float X = 0.0,
				float Y = 0.0,
				float Z = 0.0,
				point Origin = point(0.0, 0.0, 0.0),
				vector VectorIn = vector(0.0, 0.0, 0.0),
				output vector VectorOut = vector(0.0, 0.0, 0.0))
				{
				point in = VectorIn;

				matrix rmat;

				eul_to_mat(rmat, point(X,Y,Z));

				in = in - Origin;
				in = transform(rmat, in);
				in = in + Origin;

				VectorOut = in;
				}