mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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99 lines
3.6 KiB
C++
99 lines
3.6 KiB
C++
//
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// Copyright 2013 Pixar
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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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// and the following modification to it: Section 6 Trademarks.
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// deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the
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// trade names, trademarks, service marks, or product names of the
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// Licensor and its affiliates, except as required for reproducing
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// the content of the NOTICE file.
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//
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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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific
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// language governing permissions and limitations under the
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// License.
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//
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#ifndef HBRCORNEREDIT_H
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#define HBRCORNEREDIT_H
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#include "../version.h"
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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template <class T> class HbrCornerEdit;
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template <class T>
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std::ostream& operator<<(std::ostream& out, const HbrCornerEdit<T>& path) {
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out << "vertex path = (" << path.faceid << ' ';
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for (int i = 0; i < path.nsubfaces; ++i) {
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out << static_cast<int>(path.subfaces[i]) << ' ';
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}
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return out << static_cast<int>(path.vertexid) << "), sharpness = " << path.sharpness;
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}
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template <class T>
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class HbrCornerEdit : public HbrHierarchicalEdit<T> {
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public:
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HbrCornerEdit(int _faceid, int _nsubfaces, unsigned char *_subfaces, unsigned char _vertexid, typename HbrHierarchicalEdit<T>::Operation _op, float _sharpness)
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: HbrHierarchicalEdit<T>(_faceid, _nsubfaces, _subfaces), vertexid(_vertexid), op(_op), sharpness(_sharpness) {
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}
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HbrCornerEdit(int _faceid, int _nsubfaces, int *_subfaces, int _vertexid, typename HbrHierarchicalEdit<T>::Operation _op, float _sharpness)
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: HbrHierarchicalEdit<T>(_faceid, _nsubfaces, _subfaces), vertexid(static_cast<unsigned char>(_vertexid)), op(_op), sharpness(_sharpness) {
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}
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virtual ~HbrCornerEdit() {}
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friend std::ostream& operator<< <T> (std::ostream& out, const HbrCornerEdit<T>& path);
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virtual void ApplyEditToFace(HbrFace<T>* face) {
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if (HbrHierarchicalEdit<T>::GetNSubfaces() == face->GetDepth()) {
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// Modify vertex sharpness. Note that we could actually do
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// this in ApplyEditToVertex as well!
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float sharp = 0.0f;
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if (op == HbrHierarchicalEdit<T>::Set) {
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sharp = sharpness;
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} else if (op == HbrHierarchicalEdit<T>::Add) {
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sharp = face->GetVertex(vertexid)->GetSharpness() + sharpness;
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} else if (op == HbrHierarchicalEdit<T>::Subtract) {
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sharp = face->GetVertex(vertexid)->GetSharpness() - sharpness;
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}
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if (sharp < HbrVertex<T>::k_Smooth) {
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sharp = HbrVertex<T>::k_Smooth;
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}
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if (sharp > HbrVertex<T>::k_InfinitelySharp) {
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sharp = HbrVertex<T>::k_InfinitelySharp;
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}
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face->GetVertex(vertexid)->SetSharpness(sharp);
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}
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}
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private:
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// ID of the edge (you can think of this also as the id of the
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// origin vertex of the two-vertex length edge)
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const unsigned char vertexid;
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typename HbrHierarchicalEdit<T>::Operation op;
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// sharpness of the vertex edit
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const float sharpness;
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};
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} // end namespace OPENSUBDIV_VERSION
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using namespace OPENSUBDIV_VERSION;
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} // end namespace OpenSubdiv
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#endif /* HBRCORNEREDIT_H */
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