“REFMAP buildings” provides some nice shadow tiles, we also can use for the inner of buildings. However, if the light of two windows joins, we cannot create the shadows accordingly. Did I do something wrong, or are there tiles missing for archieving this?
One workaround could be to change the distance of the windows. This issue only occurs, if the distance between the windows is an odd amount of tiles. With an even amount of tiles as the distance, we could prevent this. Otherwise, two additional shadow tiles are needed, which supports shadows for the other distance type.