84 lines
3.0 KiB
C++
84 lines
3.0 KiB
C++
//
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// Copyright 2013 Pixar
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//
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// Licensed under the terms set forth in the LICENSE.txt file available at
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// https://opensubdiv.org/license.
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//
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#ifndef OPENSUBDIV3_HBRCREASEEDIT_H
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#define OPENSUBDIV3_HBRCREASEEDIT_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 HbrCreaseEdit;
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template <class T>
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std::ostream& operator<<(std::ostream& out, const HbrCreaseEdit<T>& path) {
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out << "edge 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.edgeid) << "), sharpness = " << path.sharpness;
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}
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template <class T>
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class HbrCreaseEdit : public HbrHierarchicalEdit<T> {
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public:
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HbrCreaseEdit(int _faceid, int _nsubfaces, unsigned char *_subfaces, unsigned char _edgeid, typename HbrHierarchicalEdit<T>::Operation _op, float _sharpness)
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: HbrHierarchicalEdit<T>(_faceid, _nsubfaces, _subfaces), edgeid(_edgeid), op(_op), sharpness(_sharpness) {
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}
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HbrCreaseEdit(int _faceid, int _nsubfaces, int *_subfaces, int _edgeid, typename HbrHierarchicalEdit<T>::Operation _op, float _sharpness)
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: HbrHierarchicalEdit<T>(_faceid, _nsubfaces, _subfaces), edgeid(static_cast<unsigned char>(_edgeid)), op(_op), sharpness(_sharpness) {
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}
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virtual ~HbrCreaseEdit() {}
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friend std::ostream& operator<< <T> (std::ostream& out, const HbrCreaseEdit<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 edge sharpness
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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->GetEdge(edgeid)->GetSharpness() + sharpness;
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} else if (op == HbrHierarchicalEdit<T>::Subtract) {
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sharp = face->GetEdge(edgeid)->GetSharpness() - sharpness;
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}
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if (sharp < HbrHalfedge<T>::k_Smooth)
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sharp = HbrHalfedge<T>::k_Smooth;
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if (sharp > HbrHalfedge<T>::k_InfinitelySharp)
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sharp = HbrHalfedge<T>::k_InfinitelySharp;
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// We have to make sure the neighbor of the edge exists at
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// this point. Otherwise, if it comes into being late, it
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// will clobber the overriden sharpness and we will lose
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// the edit.
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face->GetEdge(edgeid)->GuaranteeNeighbor();
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face->GetEdge(edgeid)->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 edgeid;
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typename HbrHierarchicalEdit<T>::Operation op;
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// sharpness of the edge 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_HBRCREASEEDIT_H */
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