BUG: Framebuffer warnings on macOS
When running a Python visualization script that works without a problem on VTK 8.2, on VTK 9 on macOS I see:
2020-04-11 10:14:58.333 ( 1.758s) [ 3BD262]vtkOpenGLFramebufferObj:1381 WARN| failed at glBlitFramebuffer 1 OpenGL errors detected 0 : (1286) Invalid framebuffer operation
I have a not-super-old new macbook pro (2016 running Catalina) so I'm surprised there are a slew of these.
I don't have a minimal example but if it would help (i.e., if it's not immediately clear what the likely problem is) then I can whittle down the code to one (but it might take a bit of time).