usd_reader_nurbs.hh

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/* SPDX-FileCopyrightText: 2021 Tangent Animation. All rights reserved.
 * SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 *
 * Adapted from the Blender Alembic importer implementation. */
 
#pragma once
 
#include "usd.hh"
#include "usd_reader_geom.hh"
 
#include <pxr/usd/usdGeom/nurbsCurves.h>
 
struct Curve;
 
namespace blender::io::usd {
 
class USDNurbsReader : public USDGeomReader {
 protected:
  pxr::UsdGeomNurbsCurves curve_prim_;
 
 public:
  USDNurbsReader(const pxr::UsdPrim &prim,
                 const USDImportParams &import_params,
                 const ImportSettings &settings)
      : USDGeomReader(prim, import_params, settings), curve_prim_(prim)
  {
  }
 
  bool valid() const override
  {
    return bool(curve_prim_);
  }
 
  void create_object(Main *bmain) override;
  void read_object_data(Main *bmain, double motionSampleTime) override;
 
  void read_curve_sample(Curve *cu, double motionSampleTime);
 
  void read_geometry(bke::GeometrySet &geometry_set,
                     USDMeshReadParams params,
                     const char **r_err_str) override;
 
 private:
  Mesh *read_mesh(struct Mesh *existing_mesh, USDMeshReadParams params, const char **r_err_str);
};
 
}  // namespace blender::io::usd