Hmm, have just been playing around with some concrete, and noticed that “something is off” especially with light that should go upwards again:
I cant really point at what is going wrong, but lumen (5.2) still has issue with “lighting upwards”.
If you compare this image to how “brutalist architecture” actually lights on the inside, the difference is like day and night.
I mean, I know a workaround for this, but it would be really nice if we could get some improvements for that kind of bouncelight. 