Operating system: Windows 10
Broken: 2.81 beta, 2019-11-18 12:53
Short description of error
glTF file takes 5 minutes to load into Blender, although it loads almost instantly into web viewers and other tools.
Exact steps for others to reproduce the error
- Start Blender, default General project
- File > Import > glTF 2.0, choose attached modelGroup.glb file (unzip it first)
- Watch how long it takes; on my relatively fast machine, it takes over 5 min.
- Load the same .glb into a web glTF viewer such as https://gltf-viewer.donmccurdy.com/; it loads in a couple of seconds.
This model is 3 MB, with 120 meshes, no animations or anything fancy. 7.7M vertices, with vertex colors.
No errors appear in the Blender console.
The model is fully validated by the glTF 2.0 validators.
I tried enabling Draco mesh compression, but apparently that's not yet supported by the Blender glTF importer.