Blending mode screen does not get rid of black background in one composition but it does in another?
Hi I hope someone can help with this issue I'm having.
I have a composition with some stock footage of some smoke on a black background. I've changed the blending mode to screen so that I can put the smoke over other footage, which is fine, it works great. But then I want to duplicate the effect and make alterations in a new composition to bring it on other a different part of the back ground footage. So I make a new comp, copy over the smoke, and it has its black background back, only this time I can not get rid of it even when changing the blending mode to screen. Has anyone else encountered this issue please?
