I have a very simple arc I'm looking to shoot onto. Here's the setup:

3 projectors tiled (not blended) shooting onto a single arc (120' long w/ 70' radius). The projectors are each centered and squared up with their individual portions of the screen, so you could basically treat it like 3 separate and identical arcs. The "screen" is actually a curtain with fullness, so that will cover a little bit of distortion.

Do I need to create a model for this arc, or will catalyst handle the curved surface through internal settings (i.e. mix settings, etc.)?

Thanks.