vtkGLTFImporter create too many actors with multi parts dataset
vtkGLTFImporter create one actor per glTF part, this is not great as some dataset can have hundreds of parts, and VTK is not optimized for displaying hundreds of actors, it would be nice to be able to modify this behavior with an option to merge parts in the importer
Example with a specific file using the GLTFImporter example from: https://examples.vtk.org/site/Cxx/IO/GLTFImporter/
time ./GLTFImporter ~/tmp/asterisk-v3-1.56mps.gltf
2023-09-17 12:44:23.272 ( 1.410s) [ 36455B80]vtkGLTFDocumentLoaderIn:1324 WARN| vtkGLTFDoc supported by this loader. The extension will be ignored.
^C
real 1m4.830s
user 1m50.365s
sys 0m18.583s
Edited by Mathieu Westphal (Kitware)