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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2019 Blender Foundation. All rights reserved. */
#pragma once
#include "usd_writer_abstract.h"
#include <pxr/usd/usdGeom/mesh.h>
namespace blender::io::usd {
struct USDMeshData;
/* Writer for USD geometry. Does not assume the object is a mesh object. */
class USDGenericMeshWriter : public USDAbstractWriter {
public:
USDGenericMeshWriter(const USDExporterContext &ctx);
protected:
virtual bool is_supported(const HierarchyContext *context) const override;
virtual void do_write(HierarchyContext &context) override;
virtual Mesh *get_export_mesh(Object *object_eval, bool &r_needsfree) = 0;
virtual void free_export_mesh(Mesh *mesh);
private:
/* Mapping from material slot number to array of face indices with that material. */
typedef std::map<short, pxr::VtIntArray> MaterialFaceGroups;
void write_mesh(HierarchyContext &context, Mesh *mesh);
void get_geometry_data(const Mesh *mesh, struct USDMeshData &usd_mesh_data);
void assign_materials(const HierarchyContext &context,
pxr::UsdGeomMesh usd_mesh,
const MaterialFaceGroups &usd_face_groups);
void write_uv_maps(const Mesh *mesh, pxr::UsdGeomMesh usd_mesh);
void write_normals(const Mesh *mesh, pxr::UsdGeomMesh usd_mesh);
void write_surface_velocity(const Mesh *mesh, pxr::UsdGeomMesh usd_mesh);
};
class USDMeshWriter : public USDGenericMeshWriter {
public:
USDMeshWriter(const USDExporterContext &ctx);
protected:
virtual Mesh *get_export_mesh(Object *object_eval, bool &r_needsfree) override;
};
} // namespace blender::io::usd
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