I have a projection surface that is built as a 3:4 aspect ratio with a curved top. All the content is created as 4:3 in a 3:4 safe area. This was done becase Catalyst isn't the only thing using this content. My sides are OK but I need to create a mask to handle the curved portion at the top of the screen.
Is this as simple as creating a black mask in photoshop, making the rest of the area white and using the white to transparent color effect?

The screen surfaces were modeled for presentation in 3-D studio max.
Is it possible to somehow extract these measurments from Max to create
essentially scaled mask? If so how?

I would imagine this would use one of my video channels, and since i want to mask everything being output, the mask wants to reside on the topmost video layer.

Mark Butts
http://www.markbutts.com