https://youtu.be/lioNcs1fV-A
Reflection
The procedure loop animation in Unity. There are many attributes looped like the rotation of the main axis of all objects, the shift of geometry shape, the movement of the central object, the self-rotation. These loops of attributes are not started at the same time.
I found that we can stare at some loop animations longer than others, like many satisfying 3D animation loops and animated loading icon of games( Assasins' creed Origin, Move or die etc.) While the patterns of some loop animation are very obvious and I would stop looking at it after several loops.
I assume that besides the content of the loop animation another important reason is there is no certain start or endpoint in the loop. The loop patterns are harder to be identified, the attraction will last longer. So we would stare at them longer unconsciously. In my work, I tried to import many attributes to loop in different frequency and forms and keep the speed linear instead of ease in/out, so it's hard for the audience to find out when the motion pattern presented again.