Null Animation Trail / Trace with thickness based on speed


#1

Hi Everyone,
I am trying to create an animation trail in Cinema 4D.

Basically I am tracing an animated null, that then creates a spline (with sweep) and the sweep thickness should vary depending on the speed/velocity (basically the distance delta to the last keyframe) of the null-animation.

Like a brush-stroke that gets wider the faster the brush goes.

Is there any way I can do this? I also have X-Particles, but can’t seem to figure it out with that either.

Any help is appreciated.
Thanks!


#2

perhaps a little expresso that uses a rangemapper to map speed of null to size of sweep. width on speed.c4d (393.1 KB)
retricted to width in this sampe


#3

Thanks, great Idea! This though always changes the thickness of the entire sweep.

I will test some more with this method though, thanks!


#4

Instead of using a sweep could you use a loft and create different sized spline circles based on the speed? - You might have to work with mograph weight / memory node. Not sure if it would work.