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// Copyright 2016 Blender Foundation. All rights reserved.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation,
// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// Author: Sergey Sharybin
#ifndef OPENSUBDIV_TOPOLOGY_REFINER_IMPL_H_
#define OPENSUBDIV_TOPOLOGY_REFINER_IMPL_H_
#ifdef _MSC_VER
# include <iso646.h>
#endif
#include <opensubdiv/far/topologyRefiner.h>
#include "internal/base/memory.h"
#include "internal/topology/mesh_topology.h"
#include "opensubdiv_topology_refiner_capi.h"
struct OpenSubdiv_Converter;
namespace blender {
namespace opensubdiv {
class TopologyRefinerImpl {
public:
// NOTE: Will return nullptr if topology refiner can not be created (for example, when topology
// is detected to be corrupted or invalid).
static TopologyRefinerImpl *createFromConverter(
OpenSubdiv_Converter *converter, const OpenSubdiv_TopologyRefinerSettings &settings);
TopologyRefinerImpl();
~TopologyRefinerImpl();
OpenSubdiv::Far::TopologyRefiner *topology_refiner;
// Subdivision settingsa this refiner is created for.
OpenSubdiv_TopologyRefinerSettings settings;
// Topology of the mesh which corresponds to the base level.
//
// All the indices and values are kept exactly the same as user-defined
// converter provided them. This allows to easily compare values which might
// be touched by the refinement process.
//
// On a more technical note this allows to easier/faster to compare following
// things:
//
// - Face vertices, where OpenSubdiv could re-arrange them to keep winding
// uniform.
//
// - Vertex crease where OpenSubdiv will force crease for non-manifold or
// corner vertices.
MeshTopology base_mesh_topology;
MEM_CXX_CLASS_ALLOC_FUNCS("TopologyRefinerImpl");
};
} // namespace opensubdiv
} // namespace blender
struct OpenSubdiv_TopologyRefinerImpl : public blender::opensubdiv::TopologyRefinerImpl {
};
#endif // OPENSUBDIV_TOPOLOGY_REFINER_IMPL_H_
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