OpenSubdiv/opensubdiv/far/endCapLegacyGregoryPatchFactory.h
Takahito Tejima 74b78b3d17 Refactor again FarPatchTableFactory.
- rename "Regular end cap" to "BSplineBasis end cap"
- revert templating and add EndCapType into PatchTablesFactory::Options.
- make EndCapFactories internal in PatchTablesFactory.
- move end cap stencils into PatchTables, keep them relative to the max level.
- add a utility StencilTablesFactory::AppendEndCapStencilTables to splice and factorize endcap stencil tables.
2015-04-23 16:58:56 -07:00

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//
// Copyright 2015 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
// names, trademarks, service marks, or product names of the Licensor
// and its affiliates, except as required to comply with Section 4(c) of
// the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// language governing permissions and limitations under the Apache License.
//
#ifndef FAR_END_CAP_LEGACY_GREGORY_PATCH_FACTORY_H
#define FAR_END_CAP_LEGACY_GREGORY_PATCH_FACTORY_H
#include "../far/patchTablesFactory.h"
namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
class PatchTables;
class TopologyRefiner;
namespace Far {
/// \brief This factory generates legacy (OpenSubdiv 2.x) gregory patches.
///
/// note: This is an internal use class in PatchTablesFactory.
/// will be deprecated at some point.
///
class EndCapLegacyGregoryPatchFactory {
public:
EndCapLegacyGregoryPatchFactory(TopologyRefiner const & refiner);
/// \brief Returns end patch point indices for \a faceIndex of \a level.
/// Note that legacy gregory patch points exist in the max level
/// of subdivision in the topologyRefiner.
/// The returning indices are offsetted by levelVertOffset
///
/// @param level vtr refinement level
///
/// @param faceIndex vtr faceIndex at the level
///
/// @param levelPatchTags Array of patchTags for all faces in the level
///
/// @param levelVertOffset relative offset of patch vertex indices
///
ConstIndexArray GetPatchPoints(Vtr::Level const * level, Index faceIndex,
PatchTablesFactory::PatchFaceTag const * levelPatchTags,
int levelVertOffset);
void Finalize(PatchTables *patchTables);
private:
TopologyRefiner const &_refiner;
std::vector<Index> _gregoryTopology;
std::vector<Index> _gregoryBoundaryTopology;
std::vector<Index> _gregoryFaceIndices;
std::vector<Index> _gregoryBoundaryFaceIndices;
};
} // end namespace Far
} // end namespace OPENSUBDIV_VERSION
} // end namespace OpenSubdiv
#endif // FAR_END_CAP_LEGACY_GREGORY_PATCH_FACTORY_H