OpenSubdiv/opensubdiv/vtr/triRefinement.h
barfowl 5cb12805ca Added refinement and masks for Loop subdivision:
- added flag to Sdc MASK interface to interpret "face weights"
    - updated Catmark and Bilinear schemes to be aware of new MASK flag
    - added subdivision and limit masks for the Loop scheme
    - subclassed Vtr::Refinement into QuadRefinement and TriRefinement
    - updated tagging of components to be sensitive to applied scheme
    - fixed some quad assumptions in FVar refinement to support N-sided
    - internally generalized ::TopologyRefiner Interpolate() for <SCHEME>
2014-11-17 17:19:30 -08:00

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3.5 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 VTR_TRI_REFINEMENT_H
#define VTR_TRI_REFINEMENT_H
#include "../version.h"
#include "../vtr/refinement.h"
namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
namespace Vtr {
//
// TriRefinement:
// A TriRefinement is a subclass of Refinement that splits all faces into tris.
// It provides the configuration of parent-to-child components and the population of
// all required topological relations in order to complete a valid Refinement.
//
class TriRefinement : public Refinement {
public:
TriRefinement(Level const & parent, Level & child, Sdc::Options const & options);
~TriRefinement();
protected:
//
// Virtual methods to complete the configuration of the parent-to-child mapping:
//
virtual void allocateParentChildIndices();
virtual void markSparseFaceChildren();
//
// Virtual methods to populate the six topological relations:
//
virtual void populateFaceVertexRelation();
virtual void populateFaceEdgeRelation();
virtual void populateEdgeVertexRelation();
virtual void populateEdgeFaceRelation();
virtual void populateVertexFaceRelation();
virtual void populateVertexEdgeRelation();
//
// Internal helper methods for populating the topology -- a few of these are
// identical to what is used for quad-splitting, so we may move them to the
// base class...
//
void populateFaceVertexCountsAndOffsets();
void populateFaceVerticesFromParentFaces();
void populateFaceEdgesFromParentFaces();
void populateEdgeVerticesFromParentFaces();
void populateEdgeVerticesFromParentEdges();
void populateEdgeFacesFromParentFaces();
void populateEdgeFacesFromParentEdges();
void populateVertexFacesFromParentEdges();
void populateVertexFacesFromParentVertices();
void populateVertexEdgesFromParentEdges();
void populateVertexEdgesFromParentVertices();
private:
//
// Unlike the quad-split, which can some vectors with the parent Level since
// child components correspond to face-vertices, the tri-split must define its
// own local vectors to identify the children for each parent component -- to
// be referenced within the base class for more immediate/inline access:
//
IndexVector _localFaceChildFaceCountsAndOffsets;
};
} // end namespace Vtr
} // end namespace OPENSUBDIV_VERSION
using namespace OPENSUBDIV_VERSION;
} // end namespace OpenSubdiv
#endif /* VTR_REFINEMENT_H */