tornavis/intern/opensubdiv/internal/topology/topology_refiner_impl.h

71 lines
2.1 KiB
C++

/* SPDX-FileCopyrightText: 2016 Blender Foundation
*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* 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.hh"
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();
// Check whether this topology refiner defines same topology as the given
// converter.
// Covers options, geometry, and geometry tags.
bool isEqualToConverter(const OpenSubdiv_Converter *converter) const;
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_