diff options
Diffstat (limited to 'intern/cycles/kernel/osl/shaders/node_mapping.osl')
-rw-r--r-- | intern/cycles/kernel/osl/shaders/node_mapping.osl | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/intern/cycles/kernel/osl/shaders/node_mapping.osl b/intern/cycles/kernel/osl/shaders/node_mapping.osl new file mode 100644 index 00000000000..131640685bc --- /dev/null +++ b/intern/cycles/kernel/osl/shaders/node_mapping.osl @@ -0,0 +1,73 @@ +/* + * 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 "stdcycles.h" + +point safe_divide(point a, point b) +{ + return point((b[0] != 0.0) ? a[0] / b[0] : 0.0, + (b[1] != 0.0) ? a[1] / b[1] : 0.0, + (b[2] != 0.0) ? a[2] / b[2] : 0.0); +} + +matrix euler_to_mat(point euler) +{ + float cx = cos(euler[0]); + float cy = cos(euler[1]); + float cz = cos(euler[2]); + float sx = sin(euler[0]); + float sy = sin(euler[1]); + float sz = sin(euler[2]); + + matrix mat = matrix(1.0); + mat[0][0] = cy * cz; + mat[0][1] = cy * sz; + mat[0][2] = -sy; + + mat[1][0] = sy * sx * cz - cx * sz; + mat[1][1] = sy * sx * sz + cx * cz; + mat[1][2] = cy * sx; + + mat[2][0] = sy * cx * cz + sx * sz; + mat[2][1] = sy * cx * sz - sx * cz; + mat[2][2] = cy * cx; + return mat; +} + +shader node_mapping(string mapping_type = "point", + point VectorIn = point(0.0, 0.0, 0.0), + point Location = point(0.0, 0.0, 0.0), + point Rotation = point(0.0, 0.0, 0.0), + point Scale = point(1.0, 1.0, 1.0), + output point VectorOut = point(0.0, 0.0, 0.0)) +{ + if (mapping_type == "point") { + VectorOut = transform(euler_to_mat(Rotation), (VectorIn * Scale)) + Location; + } + else if (mapping_type == "texture") { + VectorOut = safe_divide(transform(transpose(euler_to_mat(Rotation)), (VectorIn - Location)), + Scale); + } + else if (mapping_type == "vector") { + VectorOut = transform(euler_to_mat(Rotation), (VectorIn * Scale)); + } + else if (mapping_type == "normal") { + VectorOut = normalize((vector)transform(euler_to_mat(Rotation), safe_divide(VectorIn, Scale))); + } + else { + warning("%s", "Unknown Mapping vector type!"); + } +} |