usd_reader_pointinstancer.hh

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
 
#include "usd_reader_geom.hh"
 
#include <pxr/usd/usdGeom/pointInstancer.h>
 
struct Collection;
 
namespace blender::io::usd {
 
/* Wraps the UsdGeomPointInstancer schema. Creates a Blender point cloud object. */
 
class USDPointInstancerReader : public USDGeomReader {
 private:
  pxr::UsdGeomPointInstancer point_instancer_prim_;
 
 public:
  USDPointInstancerReader(const pxr::UsdPrim &prim,
                          const USDImportParams &import_params,
                          const ImportSettings &settings)
      : USDGeomReader(prim, import_params, settings), point_instancer_prim_(prim)
  {
  }
 
  bool valid() const override
  {
    return bool(point_instancer_prim_);
  }
 
  void create_object(Main *bmain) override;
 
  void read_object_data(Main *bmain, pxr::UsdTimeCode time) override;
 
  /* This may be called by the cache modifier to update animated geometry. */
  void read_geometry(bke::GeometrySet &geometry_set,
                     USDMeshReadParams params,
                     const char **r_err_str) override;
 
  pxr::SdfPathVector proto_paths() const;

  void set_collection(Main *bmain, Collection &coll);
 
  /* Return true if the USD data may be time varying. */
  bool is_animated() const;
};
 
}  // namespace blender::io::usd