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Speed up FBX export of vertex cos with numpy #104448

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Bastien Montagne merged 1 commits from Mysteryem/blender-addons:fbx_numpy_vertex_cos_pr into main 2023-02-28 18:05:03 +01:00
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1 changed files with 4 additions and 2 deletions
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io_scene_fbx/export_fbx_bin.py
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@ -885,9 +885,11 @@ def fbx_data_mesh_elements(root, me_obj, scene_data, done_meshes):
elem_data_single_int32(geom, b"GeometryVersion", FBX_GEOMETRY_VERSION)
# Vertex cos.
t_co = array.array(data_types.ARRAY_FLOAT64, (0.0,)) * len(me.vertices) * 3
co_bl_dtype = np.single
co_fbx_dtype = np.float64
t_co = np.empty(len(me.vertices) * 3, dtype=co_bl_dtype)
me.vertices.foreach_get("co", t_co)
elem_data_single_float64_array(geom, b"Vertices", chain(*vcos_transformed_gen(t_co, geom_mat_co)))
elem_data_single_float64_array(geom, b"Vertices", vcos_transformed(t_co, geom_mat_co, co_fbx_dtype))
del t_co
# Polygon indices.