Well, in Flash you can just animate things on a timeline, very similar to AE in that respect. Compared to AE and something like Cinema 4D or other 3D app, you just publish a Flash file when you’re ready, it’s not the same as rendering it out which, for me in C4D, might take up to 4 or 5 days for some projects. Flash doesn’t really work that way, so the issue is strictly about the animation work, and not rendering. Flash publishes in just a few seconds, in the projects I have worked on.
That’s a great question, about whether I should charge for the time my computer is rendering and I can’t do anything else. I do have a backup laptop, I could work on that. I’ve never been hired to produce anything with C4D so I’m not sure about how to handle that. I suppose I would just use my laptop for other work, although I don’t prefer that because of the screen size/resolution.
I have asked this client for more details, then I will send a proper quote for the work.