Yes, doing animation requires a lot of render times.
Buffff … yes, that’s right, it’s too much.
So ask yourself this question, if on your computer (which for sure is not a bad one) you need 6 hours to calculate a complicated scene, …
How much time will I need to calculate one minute of full 4K animation?
25 x 60 x 6 = 9600 hours = 375 days = 1 year
It is no time to get depressed. But yes, we must be aware of our limitations before committing ourselves to our client.
Currently, the usual thing, depending on the customer and the final product, is that your animations must have HD resolution (1280×720) or, at best, full HD (1920×1080).
The calculation of the render times is simple:
Minutes / frame x number of frames = calculation time.
I recommend that you shouldn’t be optimistic about this operation. Always think of the operation in the worst case scenario and rejoice later when the calculation times of some scenes lower your average.
In our experience, with a small render farm consisting of high range and well-loaded ram computers,
every scene that is between 20 and 30 minutes of calculation per frame, falls within a reasonable result.
The conclusion is obvious: to do animation we need and we will need more and more computing capacity. That forces us to invest money in machines and ram or to contract the services of render times in the cloud.