Im trying to find a way where i can have a 1920x1080 output size while having the top and bottom of my viewport masked with black bars. I am not allowed to simply lower the height of the frame to fit. The resolution has to be at 1920x1080 with black bars visible in the viewport. The problem comes when adjusting the focal length. I've tried creating a geometric mask that scales with the focal changes by using the reaction manager. It gets me very very close but i can still see the mask geometry jittering around slightly. Is there some sort of setting where I can make the action safe frame opaque so that it crops the frame but keeps my resolution?
Any help is appreciated...Thanks