I design for widescreen systems like this very often.
You could use cameras as Ted mentions, but I prefer to create one large master comp (20480×768), and then a series of output comps (1024×768) with the master comp re-positioned appropriately for each display segment. (The playback system requirements will determine your output requirements.)
My suggestions for working with huge pixel spaces like this: loads of RAM, CS5, and workflow adjustments like proxies/pre-rendering, Shift-RAM preview with very low quality settings, and region of interest rendering.
Widescreen render times can be shocking if you are used to SD or HD render times. You might do some tests upfront to get an idea of what your final render times will be like and build it into your schedule.
I’d also render to image sequences instead of Quicktime movies. The raster size won’t cause problems, and if your render fails for any reason, you’ll be able to resume the render of an image sequence where it left off.
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
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