Q:
A simple example: when I want to make a looping animation of a, for
example, a rotating object, I first set the lenght to 30, create the
objects, animate, go to frame 30, rotate the object by 360 or 180 degrees.
The result: the object stops on the frame 30, resulting a not-very good
looking motion. Up to now, I've set the lenght to 31, created the key in
frame 31 and rendered 30 frames, but there must be a easier way.
A:
No, what you do is right.
Note that a NTSC second has about 30 frames (29.97?)
If you have set the last frame to 30 (default), you actually have 31
(0-30).
So you can create your one-second animation from 0 to 30, then go to the
render screen and select Range - it is by default set to MovieLenght-1,
in this case 0..29! 3DS thinks for you ;o)