I’m working in Rhino 5 for Mac running Mojave 10.14.6. I’ve been having an issue where I can see ‘through’ solids when I am at certain angles. The drawing is in shaded, and it happens for both open and closed polysurfaces, as well as unjoined surfaces.
This started happening maybe 6 months ago. It doesn’t stop me from drawing, but it’s pretty bothersome. Has anyone seen something like this before? Is it something obvious I’m missing? Screenshots below.