Pyvista: eye dome lighting white out in subplots

[banesullivan]

The eye dome lighting code is giving white out views when plotting in any subplot other than the (0,0) index.

import pyvista as pv
from pyvista import examples

mesh = examples.download_nefertiti()

p = pv.Plotter(notebook=False, shape=(1, 2))

# No eye-dome lighting
p.subplot(0,0)
p.add_mesh(mesh, color=True)
p.camera_position = [-1,-1,0.2]

# With eye-dome lighting
p.subplot(0,1)
p.add_mesh(mesh, color=True)
p.enable_eye_dome_lighting()
p.camera_position = [-1,-1,0.2]

p.show()

[banesullivan]

All indices before the one with eye dome lighting enabled get whited-out

[GuillaumeFavelier]

We did a minimum working example reproducing the issue with @massich's help in Python and C++ VTK in this repository. Then I opened a new discussion on the topic in the VTK discourse. Hopefully we'll get some insights or new perspectives on it.

[banesullivan]

Thanks, @GuillaumeFavelier!! There are a few issues like this where's it has been tough for me to make a minimal, pure-VTK example to post on the VTK discourse. Hopefully that thread gets some attention!