Re: Creating a simple loop

Just to make sure we're on the same wave-length, I'm assuming you have a 10 sec clip with the last 10 frames of animation and you want those last 10 frames to loop forever. Try this, a little split layer, time remap, add and remove time remap keyframes, add loop expression:

1) Import your 10 sec clip into the main comp.

2) Go to the point in time on that 10 sec clip where the animation begins, where you want the looping to start.

3) Edit>Split layer.

4) Select the new upper layer (it should have that 10 sec of animation you want to loop), then, Layer>Enable Time Remapping.

5) This will give you two keyframes, one at the end of the clip, one at the beginning, actually the beginning if it were still connected to the original or whole clip before you split it. So if you haven't moved anywhere on the time line, set a third time remapping keyframe where the split is (click the "Add or Remove Keyframe at Current Time" box, just below the layer's eyeball). If you've moved on the timeline, selecting the layer and "i" should put you in the spot of the split, so you can set that third keyframe.

6) Now, select that first Time remapping keyframe, the one to the far left, where the original/whole clip began (we're still on the top, split layer), and delete it. You should have two time remap keyframes left, one at the split, one ant the outpoint of the layer.

7) Add you loop expression (copy the expression, Alt-Click the Time Remapping Stopwatch, Paste, Click Outside the box):

loopOut()

8) Now, drag the right hand edge of the top/split layer to the right, as far as you want it to loop. The loop expression will loop all keyframes, the only two left, forever, well as long as your comp anyway.