Operating system: MacOS Catalina beta
Graphics card: Radeon Pro 555 2 GB
Broken: 2.81 alpha
Short description of error
Exporting GLTF with big texture is super slow
Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).
I tried this many times with Blender 2.80 and also 2.81... exporting GLTF + Texture with large texture like 8000 x 8000 is superslow, not sure why... Maybe time it takes to copy? But it's weird.