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The Rotate animation makes a group of particles rotate around its geometric center. The rotation is done around a vector that goes through the centroid of the group of particles and is collinear with the Z-axis.

See also animations: Rock, Hold atoms, Move atoms

Adding the animation#

First, select a group of particles that you want to be rotated around their centroid.

Then, double-click on the Rotate animation effect in the Animation panel of the Animator.

The selected group of particles will be rotated between the two keyframes. Move the keyframes of the animation as needed.


You can always move the keyframes of the animation.


In the movie we use the Animation menu which is no longer present in SAMSON. You can access all animations via the Animation panel in the Animator (1) and all presentation actions via the Animator's controls.

  1. Interface > Animator, , : Ctrl+7, : Cmd+7


You can change how the parameters are interpolated between the frames by modifying the Easing curve.