New to using HitFilm although I joined the forum a while back and watched a number of tutorials. This is a basic question but I couldn't find an answer in the forum posts.
I am trying to generate an effect, in this case Rain on Glass, so that I can export it with alpha to overlay on footage at a later date. So I am not looking to generate the effect on an image or video, but on a transparent "layer" and I don't seem to find a way to do that. It's fine when I try on an image or a video, but it does not seem to work with a grade layer or plane.
I think a workaround would be to use an image which is actually an entirely transparent PNG, but there must be a way to do this easily without the workaround: I just can't figure it out.
Sorry this is so basic: thank you for your pointers and suggestions.