abc_writer_instance.h

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
 
#include "abc_writer_abstract.h"
 
namespace blender::io::alembic {
 
/* Writer for Alembic instances, i.e. data that references another Alembic object.
 *
 * Note that the Alembic object created by this writer cannot be used as a
 * parent, because it already instantiates the entire hierarchy of the
 * referenced object. */
class ABCInstanceWriter : public ABCAbstractWriter {
 public:
  explicit ABCInstanceWriter(const ABCWriterConstructorArgs &args);
 
  virtual void create_alembic_objects(const HierarchyContext *context) override;
  virtual Alembic::Abc::OObject get_alembic_object() const override;
 
 protected:
  virtual bool is_supported(const HierarchyContext *context) const override;
  virtual void do_write(HierarchyContext &context) override;
  void ensure_custom_properties_exporter(const HierarchyContext &context) override;
  Alembic::Abc::OCompoundProperty abc_prop_for_custom_props() override;
};
 
}  // namespace blender::io::alembic