Draw on masking in Apple Motion
Hello.
I'm trying to create a draw on motion so that I can animate this colored line. I added a bezier line so that I can do the animated draw on effect to animate the line. It just turns white and I can't get rid of the white so that only the background is showing through. Now, I know that I need to mask out something, but I can't figure it out, now, I'm sure this is something VERY simple but I could really use a point in the right direction so I can animate this line and keep the background. *see photos.
Thank you for your help!