91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
//
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// Copyright 2014 DreamWorks Animation LLC.
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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_VTR_TRI_REFINEMENT_H
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#define OPENSUBDIV3_VTR_TRI_REFINEMENT_H
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#include "../version.h"
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#include "../vtr/refinement.h"
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Vtr {
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namespace internal {
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//
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// TriRefinement:
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// A TriRefinement is a subclass of Refinement that splits all faces into tris.
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// It provides the configuration of parent-to-child components and the population of
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// all required topological relations in order to complete a valid Refinement.
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//
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class TriRefinement : public Refinement {
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public:
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TriRefinement(Level const & parent, Level & child, Sdc::Options const & options);
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~TriRefinement();
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protected:
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//
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// Virtual methods to complete the configuration of the parent-to-child mapping:
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//
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virtual void allocateParentChildIndices();
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virtual void markSparseFaceChildren();
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//
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// Virtual methods to populate the six topological relations:
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//
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virtual void populateFaceVertexRelation();
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virtual void populateFaceEdgeRelation();
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virtual void populateEdgeVertexRelation();
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virtual void populateEdgeFaceRelation();
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virtual void populateVertexFaceRelation();
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virtual void populateVertexEdgeRelation();
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//
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// Internal helper methods for populating the topology -- a few of these are
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// identical to what is used for quad-splitting, so we may move them to the
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// base class...
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//
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void populateFaceVertexCountsAndOffsets();
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void populateFaceVerticesFromParentFaces();
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void populateFaceEdgesFromParentFaces();
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void populateEdgeVerticesFromParentFaces();
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void populateEdgeVerticesFromParentEdges();
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void populateEdgeFacesFromParentFaces();
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void populateEdgeFacesFromParentEdges();
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void populateVertexFacesFromParentEdges();
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void populateVertexFacesFromParentVertices();
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void populateVertexEdgesFromParentEdges();
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void populateVertexEdgesFromParentVertices();
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private:
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//
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// Unlike the quad-split, which can share some vectors with the parent Level since
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// child components correspond to face-vertices, the tri-split must define its
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// own local vectors to identify the children for each parent component -- to
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// be referenced within the base class for more immediate/inline access:
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//
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IndexVector _localFaceChildFaceCountsAndOffsets;
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};
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} // end namespace internal
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} // end namespace Vtr
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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_VTR_REFINEMENT_H */
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