I have a strange blockieness showing up as soon as I enable Final Gathering and have no idea what it could be and how to get rid of it. Can anyone chime in and help me out please?
I am using an longtitude-latitude environment to light the scene with. It is not an HDRI, but a normal 8bit image.
EDIT: Solved it. The max gather radius was to big.
EDIT AGAIN: That didn't solve it unfortunately. The blocks are still there.