When im some distance away, details and contours of machinery is still visible behind it.
Also the black and yellow "caution" stripe on some of the machine-models can still be seen through walls.
Noticed it only when i was in the tractor, driving to my base.
Update(from sunday but i still remember) i noticed it again but only when i am in the tractor. So when i drive, i was able to see some contours through walls, looked mostly like shadows on the machinery but also some textures like that black yellow bar and something from the belts i think. I only remember seeing it through the orange walls but also hadnt tested it on the grey ones.