# Jerky rotation animation

**URL:** <https://forum.kirupa.com/t/jerky-rotation-animation/295453>\
**Category:** Uncategorized\
**Created:** [August 30, 2009, 7:49pm UTC](https://forum.kirupa.com/t/jerky-rotation-animation/295453 "2009-08-30T19:49:02Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![activa](https://avatars.discourse-cdn.com/v4/letter/a/8491ac/32.png) [@activa](https://forum.kirupa.com/u/activa)\
**Post date:** [August 30, 2009, 7:49pm UTC](https://forum.kirupa.com/t/jerky-rotation-animation/295453/1 "2009-08-30T19:49:02Z")

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I’m trying to recreate the sky with a rotating clip in the shape of an arc. I’ve tried the built-in timer that changes the rotation, I’ve tried the TweenMax class, and I’ve tried hand-building the animation with a motion tween. In all cases, the movement is jerky–smooth for about five frames, then a sudden jerk of motion. What can I do to make this animation smoother? Clip is about 2400px wide, 400px high, with a reg point about 3000px away that it rotates around.