6d3b68c9df
Reduce dependence on Blender headers as much as possible and move closer to an include-what-you-use setup. - Removes unnecessary includes - Replaces some includes with more appropriate, narrower, substitutes - Removes unnecessary forward declarations Pull Request: https://projects.blender.org/blender/blender/pulls/118308
65 lines
2.3 KiB
C++
65 lines
2.3 KiB
C++
/* SPDX-FileCopyrightText: 2023 Nvidia. All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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#include "usd.hh"
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#include "usd_reader_geom.hh"
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struct Mesh;
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namespace blender::io::usd {
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/*
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* Read USDGeom primitive shapes as Blender Meshes. This class uses the same adapter functions
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* as the GL viewport to generate geometry for each of the supported types.
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*/
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class USDShapeReader : public USDGeomReader {
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private:
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/* Template required to read mesh information out of Shape prims,
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* as each prim type has a separate subclass. */
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template<typename Adapter>
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void read_values(double motionSampleTime,
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pxr::VtVec3fArray &positions,
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pxr::VtIntArray &face_indices,
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pxr::VtIntArray &face_counts) const;
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/* Wrapper for the templated method read_values, calling the correct template
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* instantiation based on the introspected prim type. */
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bool read_mesh_values(double motionSampleTime,
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pxr::VtVec3fArray &positions,
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pxr::VtIntArray &face_indices,
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pxr::VtIntArray &face_counts) const;
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/* Read the pxr:UsdGeomMesh values and convert them to a Blender Mesh,
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* also returning face_indices and counts for further loop processing. */
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Mesh *mesh_from_prim(Mesh *existing_mesh,
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double motionSampleTime,
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pxr::VtIntArray &face_indices,
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pxr::VtIntArray &face_counts) const;
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Mesh *read_mesh(Mesh *existing_mesh, USDMeshReadParams params, const char ** /*err_str*/);
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public:
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USDShapeReader(const pxr::UsdPrim &prim,
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const USDImportParams &import_params,
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const ImportSettings &settings);
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void create_object(Main *bmain, double /*motionSampleTime*/) override;
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void read_object_data(Main *bmain, double motionSampleTime) override;
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void read_geometry(bke::GeometrySet & /*geometry_set*/,
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USDMeshReadParams /*params*/,
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const char ** /*err_str*/) override;
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bool is_time_varying();
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virtual bool topology_changed(const Mesh * /*existing_mesh*/,
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double /*motionSampleTime*/) override
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{
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return false;
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};
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};
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} // namespace blender::io::usd
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