I'm working on a live event video and our end canvas size will be extremely panoramic (20,000 x 1080). The end product will be played via Playback Pro (multiple pro res files) but my question is about post workflow.
We'll be working in a pixel to pixel size canvas in AE and then render out the pieces for the event - but to monitor during the editing / design... what is the best way to see the whole canvas. We've done multiple HD screen event videos, but this aspect is SO WIDE one monitor (even a HUGE 70" 4K monitor) will still be hard to see.
Can I use something like a triple head out of AE? Can I just stretch the playback window over three monitors on a dedicated graphics card?
I'm sure we will be rendering out and testing throughout the proccess - but I'm more concerned about the day to day design / edit / animation.
Your most cost effective option to expand monitors is to get an AMD Firepro graphics card with enough oomph for the job (or nVidia Quadro equivalent). I would suggest at least a W7100, preferably a W8100 for better cooling. Both cards allow you up to 4 monitors using ACTIVE DP-DVI Adapters (please note the emphasis on 'ACTIVE' when connecting to greater than 2 monitors).
Current technology from AMD (and possibly nVidia but I'm not so familiar with nVidia) allow a max of 6 monitors per pc. To get 6 with a W7100 or W8100, you can use a Display Port MST hub (multi-stream technology) such as that from EVGA, Matrox, Club3D (not recommended), and others. Cost is around USD100, not much more unless they package with software that adds more functionality/features and charge a premium for that).