In the image, the window to the left are using glass panes that are convex towards the camera but without any thickness, the window to the right are using thick panes. further to the right are a sphere and a plane with the same material to show the issue more clearly. messing around with the max refraction rays and r.RayTracing.Translucency.MaxRayDistance doesnt seem to make a difference.
when looking at the plane and window with the thin panes from behind, the faces are still visible, so what I assume happens is that the refraction rays get confused and cant penetrate properly which I guess isnt intended. is there any way to fix this atm?