Object with degenerate transform matrix can lead to flat
bounds on GPU. This in turn lead to NaN intersection planes
inside `IsectBox`.
Compute (pseudo) size of matrix and bypass culling is any
axis is too small.
The other part of the patch makes sure that there is a
distinction between disabled culling and invalid
bounding boxes.
Pull Request: https://projects.blender.org/blender/blender/pulls/127807
02cf5f5f0f