I want my inverted mask to stay in place while the object below it moves. How can I achieve this? Every time I animate the object to move from left to right the mask moves with it instead of staying in place.
I'm creating an iPad-type demo, where an image goes from left to right on the screen. I've created a scrolling image to be displayed on a cut-out iPad .png and want the mask to only display on the screen shaped mask I've created instead of moving with the image.
How can I separate the mask from the moving image it is associated with?