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https://github.com/PixarAnimationStudios/OpenSubdiv
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392e5e8bed
While this may be worth revisiting, we should first quantify the benefits and identify the compilers that support it. Ultimately, we may never use pragma once in favor of strictly using standard C++.
99 lines
3.8 KiB
C++
99 lines
3.8 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 "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache 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 Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache License.
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//
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#ifndef OPENSUBDIV3_HBRCORNEREDIT_H
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#define OPENSUBDIV3_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 /* OPENSUBDIV3_HBRCORNEREDIT_H */
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