Wiggle position along a path

[Pierre-alexis Tremblay]

Just as a precison I want the object to move randomly along a path, not add a simple wiggle expression to a motion path.

P.A.T.

[François Leroy]

Hi!

You can try with this expression:

François

t = key(numKeys).time;
valueAtTime(random(t));

[Pierre-alexis Tremblay]

Thank you François.
It works but it would be even better if the movement could be smoother, if position along the path could be controlled with a wiggle expression.

P.A.T.

[François Leroy]

Then, you can try with this:

and you can set the frequency, just like a wiggle.

Cheers,
François

frequency = 2;

seed = Math.floor(time*frequency);
start = seed/frequency;
stop = start + (1/frequency);

t = key(numKeys).time;
seedRandom(seed,true);
rand1 = random(t);
seedRandom(seed+1,true);
rand2 = random(t);
easing = ease(time,start,stop, rand1, rand2);
valueAtTime(easing);

[Dan Ebberts]

Try this:

freq = 1;
t = key(numKeys).time;
w = transform.rotation.wiggle(freq,100)-transform.rotation;
newT = linear(w,-100,100,0,t);
valueAtTime(newT)

Dan

[Pierre-alexis Tremblay]

Thanks guys both solutions are great.
The only other thing to make this totally perfect would be control over random seed.
Cheers.

P.A.T.