I have an image in a fixed location, and I need to create a circular mask that can be moved over the image (only the part under the circle should be visible). I've read various tutorials from help.adobe.com (as well as other sites), but I can't get this to work for the life of me. Can anyone explain how to do what I need?
Figured it out. I need to set cacheAsBitmap="true" on both the image being masked and the image serving as the mask.