Currently only 720p is supported for our graphics screens (roScreen, roImageCanvas). I believe this also means that using the roVideoPlayer compoenent, which only works in context of those screens may also limit the (actual) video resolution to 720p. If you use the roVideoScreen component, you get true 1080p resolution.
For example, if you feed roScreen1920x1080 dimensions in your createObject statement, drawobject will draw offscreen if it is drawing above 1280 x or 720y.
- Joel