Maxon Cinema 4D Forum
Spline rotation problem
Spline rotation problem
by mir geevan on Aug 8, 2019 at 5:09:42 pm

Hi, I'm trying to animate a curve (spline) with wave motion in a 2D plane (XY axis). Simple right?

To animate the curve I rigged it with nulls at the vertices, and animating the nulls on the XY axis. The wave motion is via Mospline from a Formula effector. When I move the nulls (vertices) of the spline in the plane, the spline rotates for some reason. Because the nulls are moving in a planar manner/positionally, I have no idea why the spline is rotating.

Maybe someone knows how to lock the spline on the XY axis to prevent rotation? Maybe my spline settings should be changed? Maybe I should rig everything in a different manner? Open to any suggestions.

It seems like a very straightforward animation but I'm running into some odd issues.
I can't figure out how to link things, URL to file is: