I have a two inverted difference masks on a solid that create an idea bubble to appear over video. What I would like to do is place a picture or video inside the bubble without going outside the mask regions. To make things even better, the elements have to scale animate on (I can pre-comp this, that shouldn't be a problem).
How can I achieve this effect with the least amount of quality loss? I brought over the masks from an illustrator file and scaled them down to fit my comp so when I copy/paste the inner mask to the image that goes inside the bubble the scale is incorrect. What is my best method to solve this issue? Or is there a better solution?