I have sort of an obscure question. I'm about to submit a feature length animated film to a film festival. They use Withoutabox to upload the film submissions so they can review them. I'm filling out a lengthy submission package right now and am waiting on some information to finish it. I have yet to find any details though on what the file size restrictions are for the digital copy I'm going to upload. I have a feeling the digital version I have on my desktop right now will be too big so I'm looking ahead for advice on what render setting I should use to get a decent quality film with a small file size. Quality is important obviously cuz this is the version that it will be judged by...but I also need to be able to upload it without blowing up their server lol.
I realize this is an odd question to ask when I don't yet know exactly how big or small the file needs to be but I previously had a lot of rendering trouble that wasted a lot of time and I don't have the time before the deadline to waste on rendering trials and errors. If I find out I do indeed need to rerender it I wanna be able to try it ASAP and I'd like to know my best options.
Do they say what frame size they want? If it's suitable for iPod or iPhone or other mobile device, you can use H.264 with a bit rate around 1.5 Mbps (like Apple does). If you need full HD at 1920x1080 then you'll need Blu-ray type bit rates of about 20 - 25 Mbps (or higher).
Obviously, 2 hours of feature film at 1.5 Mbps will be a much easier file to move around than one created at 25 Mbps.
NB: Bit rate and duration are the only factors that affect file size. Frame size doesn't affect it at all. The only thing frame size affects is whether a particular bit rate will look good or not.