Just started using HitFilm Express last week, and I'm loving it. However, I am stuck and if someone else has asked this question, please let me know. I just couldn't figure out the best search terms.
I created a plane for Lightning and Electricity, then set the Blend to "add." However, I am trying to mask some of the lightning (see link) to appear as if its behind my subject. If you look at the screen shot, you'll see I created the mask, but for some reason I can't get it to mask part of the lightning so it's not on top of the subject.
Should the mask not be created on the plane? Let me know if the question doesn't make sense.
Thank you in advance!