Creating a feathered mask?

[csunberry]

I want to create a mask with a feathered edge. I'm creating a sort of x-ray project, and I've got it set up so you can use the mask, and it moves around with your mouse, but I want the edges of the mask to be feathered, not solid. How do I do this?

[kglad · Accepted solution]

use cacheAsBitmap applied to the mask and masked objects to use an alpha mask

[csunberry]

Thank you! I guess I hadn't marked the other ones as that!

[kglad]

you're welcome.

(p.s when using the adobe forums, please mark helpful/correct responses, if there are any.)