Creative Communities of the World Forums

The peer to peer support community for media production professionals.

Activity Forums Adobe After Effects How to make “natural bounce”

  • How to make “natural bounce”

    Posted by Toby Van kleeck on September 16, 2006 at 6:37 pm

    Just to clarify, I’m not trying to make a basketball bonce to a full stop or anything.

    I’m trying to make different things (random items) enter the screen from above and as they “fall” I’m trying to achieve a slight “natural” boucne effect. I’m familiar with keyframe interpolation and have played around with that, but can’t figure out how to make it look more natural. Any help would be greatly appreciated, thanks!

    tvanklee

    Aharon Rabinowitz replied 19 years, 8 months ago 2 Members · 1 Reply
  • 1 Reply
  • Aharon Rabinowitz

    September 18, 2006 at 12:50 pm

    Well, do what I do – go bounce a ball and see what happens…

    when a ball hits the ground, it bounces in high archs with ground hits further apart, and eventually is barely moving off the ground with frequent ground hits.

    So on the hits to the ground you want to use linear interpolation for both time (temporal) and space (spatial). The linear keyframes make an abrupt change in speed, direction and position as you would see in real life.

    If you’re ball is bouncing straight up then on the arcs you want to use Easy Ease keyframes for the temporal and spatial. This makes the ball sort of hang in the air a moment before coming down.

    If it is bouncing from left to right (or R to L) then on the arcs you probably want to use auto bezierfor the temporal and spatial. This will create natural arcs.

    —————————————-
    Aharon Rabinowitz
    aharon(AT)yahoo(DOT)com
    http://www.allbetsareoff.com
    —————————————-
    Creative Cow Master Series DVD
    particleIllusion Fusion Volume 1
    available @ http://www.pIllusionFusion.com

We use anonymous cookies to give you the best experience we can.
Our Privacy policy | GDPR Policy