mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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108 lines
3.0 KiB
C++
108 lines
3.0 KiB
C++
//
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// Copyright 2015 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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#pragma once
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#ifndef OPENSUBDIV3_FAR_PTEX_INDICES_H
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#define OPENSUBDIV3_FAR_PTEX_INDICES_H
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#include "../version.h"
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#include "../far/topologyRefiner.h"
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#include "../far/types.h"
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#include <vector>
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Far {
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///
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/// \brief Object used to compute and query ptex face indices.
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///
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/// Given a refiner, constructing a PtexIndices object builds the mapping
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/// from coarse faces to ptex ids. Once built, the object can be used to
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/// query the mapping.
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///
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class PtexIndices {
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public:
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/// \brief Constructor
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PtexIndices(TopologyRefiner const &refiner);
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/// \brief Destructor
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~PtexIndices();
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//@{
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///
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/// Ptex
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///
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/// \brief Returns the number of ptex faces in the mesh
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///
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int GetNumFaces() const;
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/// \brief Returns the ptex face index given a coarse face 'f' or -1
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///
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int GetFaceId(Index f) const;
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/// \brief Returns ptex face adjacency information for a given coarse face
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///
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/// @param refiner refiner used to build this PtexIndices object.
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///
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/// @param face coarse face index
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///
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/// @param quadrant quadrant index if 'face' is not a quad (the local ptex
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/// sub-face index). Must be less than the number of face
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/// vertices.
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///
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/// @param adjFaces ptex face indices of adjacent faces
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///
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/// @param adjEdges ptex edge indices of adjacent faces
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///
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void GetAdjacency(
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TopologyRefiner const &refiner,
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int face, int quadrant,
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int adjFaces[4], int adjEdges[4]) const;
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//@}
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private:
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void initializePtexIndices(TopologyRefiner const &refiner);
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private:
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std::vector<Index> _ptexIndices;
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};
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} // end namespace Far
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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_FAR_PTEX_INDICES_H */
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