mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-12-13 04:20:10 +00:00
662dccfe4d
- added new TopologyRefiner member to detect presence of irregular faces
- added new Vtr::Level::VTag to indicate vertex incident an irregular face
- populated new VTag bit when irregular faces present
- updated refinement to clear new bit for refined faces
- branch adaptive refinement in linear cases to avoid testing features
- updated feature detection for irregular faces -- now a simple bit test
- updated PatchBuilder with now-trivial test for incident irregular faces
299 lines
11 KiB
C++
299 lines
11 KiB
C++
//
|
|
// Copyright 2014 DreamWorks Animation LLC.
|
|
//
|
|
// 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
|
|
// KIND, either express or implied. See the Apache License for the specific
|
|
// language governing permissions and limitations under the Apache License.
|
|
//
|
|
#ifndef OPENSUBDIV3_FAR_TOPOLOGY_REFINER_H
|
|
#define OPENSUBDIV3_FAR_TOPOLOGY_REFINER_H
|
|
|
|
#include "../version.h"
|
|
|
|
#include "../sdc/types.h"
|
|
#include "../sdc/options.h"
|
|
#include "../far/types.h"
|
|
#include "../far/topologyLevel.h"
|
|
|
|
#include <vector>
|
|
|
|
|
|
namespace OpenSubdiv {
|
|
namespace OPENSUBDIV_VERSION {
|
|
|
|
namespace Vtr { namespace internal { class SparseSelector; } }
|
|
namespace Far { namespace internal { class FeatureMask; } }
|
|
|
|
namespace Far {
|
|
|
|
template <typename REAL> class PrimvarRefinerReal;
|
|
template <class MESH> class TopologyRefinerFactory;
|
|
|
|
///
|
|
/// \brief Stores topology data for a specified set of refinement options.
|
|
///
|
|
class TopologyRefiner {
|
|
|
|
public:
|
|
|
|
/// \brief Constructor
|
|
TopologyRefiner(Sdc::SchemeType type, Sdc::Options options = Sdc::Options());
|
|
|
|
/// \brief Destructor
|
|
~TopologyRefiner();
|
|
|
|
/// \brief Returns the subdivision scheme
|
|
Sdc::SchemeType GetSchemeType() const { return _subdivType; }
|
|
|
|
/// \brief Returns the subdivision options
|
|
Sdc::Options GetSchemeOptions() const { return _subdivOptions; }
|
|
|
|
/// \brief Returns true if uniform refinement has been applied
|
|
bool IsUniform() const { return _isUniform; }
|
|
|
|
/// \brief Returns the number of refinement levels
|
|
int GetNumLevels() const { return (int)_farLevels.size(); }
|
|
|
|
/// \brief Returns the highest level of refinement
|
|
int GetMaxLevel() const { return _maxLevel; }
|
|
|
|
/// \brief Returns the maximum vertex valence in all levels
|
|
int GetMaxValence() const { return _maxValence; }
|
|
|
|
/// \brief Returns true if faces have been tagged as holes
|
|
bool HasHoles() const { return _hasHoles; }
|
|
|
|
/// \brief Returns the total number of vertices in all levels
|
|
int GetNumVerticesTotal() const { return _totalVertices; }
|
|
|
|
/// \brief Returns the total number of edges in all levels
|
|
int GetNumEdgesTotal() const { return _totalEdges; }
|
|
|
|
/// \brief Returns the total number of edges in all levels
|
|
int GetNumFacesTotal() const { return _totalFaces; }
|
|
|
|
/// \brief Returns the total number of face vertices in all levels
|
|
int GetNumFaceVerticesTotal() const { return _totalFaceVertices; }
|
|
|
|
/// \brief Returns a handle to access data specific to a particular level
|
|
TopologyLevel const & GetLevel(int level) const { return _farLevels[level]; }
|
|
|
|
//@{
|
|
/// @name High-level refinement and related methods
|
|
///
|
|
|
|
//
|
|
// Uniform refinement
|
|
//
|
|
|
|
/// \brief Uniform refinement options
|
|
///
|
|
/// Options for uniform refinement, including the number of levels, vertex
|
|
/// ordering and generation of topology information.
|
|
///
|
|
/// Note the impact of the option to generate fullTopologyInLastLevel. Given
|
|
/// subsequent levels of uniform refinement typically reguire 4x the data
|
|
/// of the previous level, only the minimum amount of data is generated in the
|
|
/// last level by default, i.e. a vertex and face-vertex list. If requiring
|
|
/// topology traversal of the last level, e.g. inspecting edges or incident
|
|
/// faces of vertices, the option to generate full topology in the last
|
|
/// level should be enabled.
|
|
///
|
|
struct UniformOptions {
|
|
|
|
UniformOptions(int level) :
|
|
refinementLevel(level),
|
|
orderVerticesFromFacesFirst(false),
|
|
fullTopologyInLastLevel(false) { }
|
|
|
|
unsigned int refinementLevel:4, ///< Number of refinement iterations
|
|
orderVerticesFromFacesFirst:1, ///< Order child vertices from faces first
|
|
///< instead of child vertices of vertices
|
|
fullTopologyInLastLevel:1; ///< Skip topological relationships in the last
|
|
///< level of refinement that are not needed for
|
|
///< interpolation (keep false if using limit).
|
|
};
|
|
|
|
/// \brief Refine the topology uniformly
|
|
///
|
|
/// This method applies uniform refinement to the level specified in the
|
|
/// given UniformOptions.
|
|
///
|
|
/// Note the impact of the UniformOption to generate fullTopologyInLastLevel
|
|
/// and be sure it is assigned to satisfy the needs of the resulting refinement.
|
|
///
|
|
/// @param options Options controlling uniform refinement
|
|
///
|
|
void RefineUniform(UniformOptions options);
|
|
|
|
/// \brief Returns the options specified on refinement
|
|
UniformOptions GetUniformOptions() const { return _uniformOptions; }
|
|
|
|
//
|
|
// Adaptive refinement
|
|
//
|
|
|
|
/// \brief Adaptive refinement options
|
|
struct AdaptiveOptions {
|
|
|
|
AdaptiveOptions(int level) :
|
|
isolationLevel(level),
|
|
secondaryLevel(15),
|
|
useSingleCreasePatch(false),
|
|
useInfSharpPatch(false),
|
|
considerFVarChannels(false),
|
|
orderVerticesFromFacesFirst(false) { }
|
|
|
|
unsigned int isolationLevel:4; ///< Number of iterations applied to isolate
|
|
///< extraordinary vertices and creases
|
|
unsigned int secondaryLevel:4; ///< Shallower level to stop isolation of
|
|
///< smooth irregular features
|
|
unsigned int useSingleCreasePatch:1; ///< Use 'single-crease' patch and stop
|
|
///< isolation where applicable
|
|
unsigned int useInfSharpPatch:1; ///< Use infinitely sharp patches and stop
|
|
///< isolation where applicable
|
|
unsigned int considerFVarChannels:1; ///< Inspect face-varying channels and
|
|
///< isolate when irregular features present
|
|
unsigned int orderVerticesFromFacesFirst:1; ///< Order child vertices from faces first
|
|
///< instead of child vertices of vertices
|
|
};
|
|
|
|
/// \brief Feature Adaptive topology refinement
|
|
///
|
|
/// @param options Options controlling adaptive refinement
|
|
///
|
|
/// @param selectedFaces Limit adaptive refinement to the specified faces
|
|
///
|
|
void RefineAdaptive(AdaptiveOptions options,
|
|
ConstIndexArray selectedFaces = ConstIndexArray());
|
|
|
|
/// \brief Returns the options specified on refinement
|
|
AdaptiveOptions GetAdaptiveOptions() const { return _adaptiveOptions; }
|
|
|
|
/// \brief Unrefine the topology, keeping only the base level.
|
|
void Unrefine();
|
|
|
|
|
|
//@{
|
|
/// @name Number and properties of face-varying channels:
|
|
///
|
|
|
|
/// \brief Returns the number of face-varying channels in the tables
|
|
int GetNumFVarChannels() const;
|
|
|
|
/// \brief Returns the face-varying interpolation rule set for a given channel
|
|
Sdc::Options::FVarLinearInterpolation GetFVarLinearInterpolation(int channel = 0) const;
|
|
|
|
/// \brief Returns the total number of face-varying values in all levels
|
|
int GetNumFVarValuesTotal(int channel = 0) const;
|
|
|
|
//@}
|
|
|
|
protected:
|
|
|
|
//
|
|
// Lower level protected methods intended strictly for internal use:
|
|
//
|
|
template <class MESH>
|
|
friend class TopologyRefinerFactory;
|
|
friend class TopologyRefinerFactoryBase;
|
|
friend class PatchTableBuilder;
|
|
friend class PatchBuilder;
|
|
friend class PtexIndices;
|
|
template <typename REAL>
|
|
friend class PrimvarRefinerReal;
|
|
|
|
// Copy constructor exposed via the factory class:
|
|
TopologyRefiner(TopologyRefiner const & source);
|
|
|
|
Vtr::internal::Level & getLevel(int l) { return *_levels[l]; }
|
|
Vtr::internal::Level const & getLevel(int l) const { return *_levels[l]; }
|
|
|
|
Vtr::internal::Refinement & getRefinement(int l) { return *_refinements[l]; }
|
|
Vtr::internal::Refinement const & getRefinement(int l) const { return *_refinements[l]; }
|
|
|
|
private:
|
|
// Not default constructible or copyable:
|
|
TopologyRefiner() : _uniformOptions(0), _adaptiveOptions(0) { }
|
|
TopologyRefiner & operator=(TopologyRefiner const &) { return *this; }
|
|
|
|
void selectFeatureAdaptiveComponents(Vtr::internal::SparseSelector& selector,
|
|
internal::FeatureMask const & mask,
|
|
ConstIndexArray selectedFaces);
|
|
void selectLinearIrregularFaces(Vtr::internal::SparseSelector& selector,
|
|
ConstIndexArray selectedFaces);
|
|
|
|
void initializeInventory();
|
|
void updateInventory(Vtr::internal::Level const & newLevel);
|
|
|
|
void appendLevel(Vtr::internal::Level & newLevel);
|
|
void appendRefinement(Vtr::internal::Refinement & newRefinement);
|
|
void assembleFarLevels();
|
|
|
|
private:
|
|
|
|
Sdc::SchemeType _subdivType;
|
|
Sdc::Options _subdivOptions;
|
|
|
|
unsigned int _isUniform : 1;
|
|
unsigned int _hasHoles : 1;
|
|
unsigned int _hasIrregFaces : 1;
|
|
unsigned int _regFaceSize : 3;
|
|
unsigned int _maxLevel : 4;
|
|
|
|
// Options assigned on refinement:
|
|
UniformOptions _uniformOptions;
|
|
AdaptiveOptions _adaptiveOptions;
|
|
|
|
// Cumulative properties of all levels:
|
|
int _totalVertices;
|
|
int _totalEdges;
|
|
int _totalFaces;
|
|
int _totalFaceVertices;
|
|
int _maxValence;
|
|
|
|
// Note the base level may be shared with another instance
|
|
bool _baseLevelOwned;
|
|
|
|
std::vector<Vtr::internal::Level *> _levels;
|
|
std::vector<Vtr::internal::Refinement *> _refinements;
|
|
|
|
std::vector<TopologyLevel> _farLevels;
|
|
};
|
|
|
|
|
|
inline int
|
|
TopologyRefiner::GetNumFVarChannels() const {
|
|
|
|
return _levels[0]->getNumFVarChannels();
|
|
}
|
|
inline Sdc::Options::FVarLinearInterpolation
|
|
TopologyRefiner::GetFVarLinearInterpolation(int channel) const {
|
|
|
|
return _levels[0]->getFVarOptions(channel).GetFVarLinearInterpolation();
|
|
}
|
|
|
|
} // end namespace Far
|
|
|
|
} // end namespace OPENSUBDIV_VERSION
|
|
using namespace OPENSUBDIV_VERSION;
|
|
} // end namespace OpenSubdiv
|
|
|
|
#endif /* OPENSUBDIV3_FAR_TOPOLOGY_REFINER_H */
|