diff options
Diffstat (limited to 'source/blender/io/usd/intern/usd_reader_xform.h')
-rw-r--r-- | source/blender/io/usd/intern/usd_reader_xform.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/source/blender/io/usd/intern/usd_reader_xform.h b/source/blender/io/usd/intern/usd_reader_xform.h new file mode 100644 index 00000000000..587ac373a4f --- /dev/null +++ b/source/blender/io/usd/intern/usd_reader_xform.h @@ -0,0 +1,68 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * Adapted from the Blender Alembic importer implementation. + * + * Modifications Copyright (C) 2021 Tangent Animation. + * All rights reserved. + */ +#pragma once + +#include "usd.h" +#include "usd_reader_prim.h" + +namespace blender::io::usd { + +class USDXformReader : public USDPrimReader { + private: + bool use_parent_xform_; + + /* Indicates if the created object is the root of a + * transform hierarchy. */ + bool is_root_xform_; + + public: + USDXformReader(const pxr::UsdPrim &prim, + const USDImportParams &import_params, + const ImportSettings &settings) + : USDPrimReader(prim, import_params, settings), + use_parent_xform_(false), + is_root_xform_(is_root_xform_prim()) + { + } + + void create_object(Main *bmain, double motionSampleTime) override; + void read_object_data(Main *bmain, double motionSampleTime) override; + + void read_matrix(float r_mat[4][4], const float time, const float scale, bool *r_is_constant); + + bool use_parent_xform() const + { + return use_parent_xform_; + } + void set_use_parent_xform(bool flag) + { + use_parent_xform_ = flag; + is_root_xform_ = is_root_xform_prim(); + } + + bool prim_has_xform_ops() const; + + protected: + /* Returns true if the contained USD prim is the root of a transform hierarchy. */ + bool is_root_xform_prim() const; +}; + +} // namespace blender::io::usd |