baaa89a0bc
This patch rewrites the Mapping node to support dynamic inputs. The Max and Min options have been removed. They can be added as Min and Max Vector Math nodes manually. Texture nodes still use the old matrix-based mapping. A new SVM node `NODE_TEXTURE_MAPPING` has been added to preserve this functionality. Similarly, in GLSL, a `mapping_mat4` function has been added. Reviewers: brecht, JacquesLucke
74 lines
2.2 KiB
Plaintext
74 lines
2.2 KiB
Plaintext
/*
|
|
* 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"
|
|
|
|
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 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 (type == "point") {
|
|
VectorOut = transform(euler_to_mat(Rotation), (VectorIn * Scale)) + Location;
|
|
}
|
|
else if (type == "texture") {
|
|
VectorOut = safe_divide(transform(transpose(euler_to_mat(Rotation)), (VectorIn - Location)),
|
|
Scale);
|
|
}
|
|
else if (type == "vector") {
|
|
VectorOut = transform(euler_to_mat(Rotation), (VectorIn * Scale));
|
|
}
|
|
else if (type == "normal") {
|
|
VectorOut = normalize(transform(euler_to_mat(Rotation), safe_divide(VectorIn, Scale)));
|
|
}
|
|
else {
|
|
warning("%s", "Unknown Mapping vector type!");
|
|
}
|
|
}
|