I am trying to create a post process material and I have come across a problem which I cannot seem to solve on my own:
I have a mask created following this tutorial: http://oliverm-h.blogspot.de/2014/08/ue4-localized-post-process-effects.html
I am using setup #1 under the box section. However, when the bounds specified by “BoxCenter” and “HalfBoxSize” overlap something (that hides a section of the box), it still includes the hidden part in the white part of the mask.
How do I expand on that technique so that only visible areas are included and ares that are not are just black?
Thanks in advance!
PS: My material is EXACTLY identical to the one shown in the article!