I've followed this knowledge article on how to make parts of walls invisible. However when I render, light seems to be passing through the invisible walls. I got the impression from the article that at the two best render modes light would not pass through. I can post couple of pictures somewhere and link them if needed.

So the question is, should invisible walls be opaque to light sources when rendering?

https://www.sweethome3d.com/blog/2017/0 ... walls.html

Thanks in advance.