Files
test2/source/blender/io/wavefront_obj/CMakeLists.txt
Mattias Fredriksson e191d3d243 IO: OBJ improvements for NURBS curves
* Bezier (NURBS) import, supporting both Blender and external variants.
* Cleaner Bezier export, with better results importing in Rhino.
* Internal support for exporting the new Curves type.
* Tests covering a broad number of related cases.

The current NURBS exporter writes curve data directly, without accounting
for internal padding or how knots are generated from modes. This adjusts the
export behavior to omit data that does not influence the geometry of the
curve. The result is a simplified output that is easier to parse during import,
both for the importer and when importing to other platforms (Rhino).
Visual explanation to the adjustment can be found in #139174.

Importer is also adjusted to support variations in knot patterns. Extending
it to support the data generated by the exporter and by other platforms (Rhino).
This should resolve some issues in relation to #138732.

Integrated tests are added to broadly validate the common cases generated
by the exporter, including variations of different modes and NURBS order.

Regression tests are added to validate that the NURBS generated in Rhino
are imported as expected.

More details in the PR.

Pull Request: https://projects.blender.org/blender/blender/pulls/139174
2025-08-01 06:37:28 +02:00

89 lines
1.8 KiB
CMake

# SPDX-FileCopyrightText: 2023 Blender Authors
#
# SPDX-License-Identifier: GPL-2.0-or-later
set(INC
.
exporter
importer
../common
../../bmesh/intern
../../editors/include
../../makesrna
)
set(INC_SYS
../../../../extern/fast_float
)
set(SRC
IO_wavefront_obj.cc
exporter/obj_export_file_writer.cc
exporter/obj_export_mesh.cc
exporter/obj_export_mtl.cc
exporter/obj_export_nurbs.cc
exporter/obj_exporter.cc
importer/importer_mesh_utils.cc
importer/obj_import_file_reader.cc
importer/obj_import_mesh.cc
importer/obj_import_mtl.cc
importer/obj_import_nurbs.cc
importer/obj_importer.cc
IO_wavefront_obj.hh
exporter/obj_export_file_writer.hh
exporter/obj_export_io.hh
exporter/obj_export_mesh.hh
exporter/obj_export_mtl.hh
exporter/obj_export_nurbs.hh
exporter/obj_exporter.hh
importer/importer_mesh_utils.hh
importer/obj_import_file_reader.hh
importer/obj_import_mesh.hh
importer/obj_import_mtl.hh
importer/obj_import_nurbs.hh
importer/obj_import_objects.hh
importer/obj_importer.hh
)
set(LIB
PRIVATE bf::blenkernel
PRIVATE bf::blenlib
PRIVATE bf::bmesh
PRIVATE bf::depsgraph
PRIVATE bf::dna
PRIVATE bf::intern::clog
PRIVATE bf::intern::guardedalloc
bf_io_common
PRIVATE bf::extern::fmtlib
PRIVATE bf::nodes
PRIVATE bf::windowmanager
)
blender_add_lib(bf_io_wavefront_obj "${SRC}" "${INC}" "${INC_SYS}" "${LIB}")
if(WITH_GTESTS)
set(TEST_SRC
tests/obj_exporter_tests.cc
tests/obj_importer_tests.cc
tests/obj_mtl_parser_tests.cc
tests/obj_nurbs_io_tests.cc
)
set(TEST_INC
${INC}
../../blenloader
../../../../tests/gtests
)
set(TEST_LIB
${LIB}
bf_blenloader_test_util
bf_io_wavefront_obj
)
blender_add_test_suite_lib(io_wavefront "${TEST_SRC}" "${TEST_INC}" "${INC_SYS}" "${TEST_LIB}")
endif()