HI dear blenderheads. I have a cloud png images sequence with semitrasparent and full transparent areas. And I wish to render alpha channel from this sequence to mp4 to use it like a mask. (Have a reason to do so)
I tried to do this such way but get incorrect result. Cloud is gray so if use it like mask it gives semitrasperent result for whole cloud
I wish to get a result like on second image that illustrate correct alpha channel, but can’t figure out how to get it.