Tips to make it in After Effects:
1. Making a shrinking semicircle and an enlarging semicircle by keyframing the Y scale.
2 Combine with a static semicircle and make use of inverted alpha matte to make a waxing and waning moon.
4 Precomp the above, and duplicate. Change the color of the new one.
5 Place the above two comps in a new comp, overlapped on top of a static circle of a different color. Stagger the two comps in time.
6 Make it a infinite loop.
7 You've done it!
Tips to make it in After Effects:
1. Making a shrinking semicircle and an enlarging semicircle by keyframing the Y scale.
2 Combine with a static semicircle and make use of inverted alpha matte to make a waxing and waning moon.
4 Precomp the above, and duplicate. Change the color of the new one.
5 Place the above two comps in a new comp, overlapped on top of a static circle of a different color. Stagger the two comps in time.
6 Make it a infinite loop.
7 You've done it!