[Neil Stubbings]

oh wow!

it works great! this is exactly what I was looking for!

thanks a lot, Dan!

—
Neil Stubbings
Graphic Design | Motion Graphics
https://www.stubbings.ch
—

[Neil Stubbings]

Hi Dan

Thanks so much for looking into this!
Buuuut, unfortunately it does not seem to work (i’ve gotten this far by myself before 🙂

the layer with the expression follows the leader layer, but has no springy motion to it.
Is it because the expression needs keyframes on its layer in order to calculate the springy motion?

—
Neil Stubbings
Graphic Design | Motion Graphics
https://www.stubbings.ch
—

[Neil Stubbings]

uhm, ok let me put it this way:

I want this expression:

target = effect("Layer Control")("Layer").position; //select which layes it will follow
seedRandom(index, true);
delay = random(effect("Slider Control")("Slider"));
delta = target.valueAtTime(time - delay) - target.valueAtTime(0);
value + delta

combined with this expression
n = 0;
if (numKeys > 0){
n = nearestKey(time).index;
if (key(n).time > time){
n--;
}
}
if (n == 0){
t = 0;
}else{
t = time - key(n).time;
}

if (n > 0){
v = velocityAtTime(key(n).time - thisComp.frameDuration/10);
amp = .05;
freq = 4.0;
decay = 2.0;
value + v*amp*Math.sin(freq*t*2*Math.PI)/Math.exp(decay*t);
}else{
value;
}

—
Neil Stubbings
Graphic Design | Motion Graphics
https://www.stubbings.ch
—

[Neil Stubbings]

or just think about it being a sausage character with 3 pins.
one at the bottom, one in the middle and one at the top.
moving the bottom one causes the sausage to move like an antennae, because middle lags behind bottom and top lags behind middle (together with the springy motion)

but in order to create more motion (maybe make the sausage speak) the middle pin needs to be animated while the top one still keeps wobbling top the middle one’s motion, but the bottom one stays where it is…

is my explanation as complicated as I think it is

—
Neil Stubbings
Graphic Design | Motion Graphics
https://www.stubbings.ch
—

[Neil Stubbings]

well simplified i want to do this:

say I have 3 Layers: RED, GREEN, BLUE while GREEN is at the bottom, RED is in the middle and BLUE at the top

I animate RED and GREEN follows RED with a delay and some springy motion.
At the same time BLUE follows GREEN also with a delay and some springy motion (so in the animation GREEN lags behind RED and BLUE lags behind GREEN)

Now I also want to animate GREEN while RED does nothing and BLUE follows GREEN with a delay and springy motion.

In the end i want to add those expressions to puppet tool pins to get a wobbly character (much like a Barbapapa)

—
Neil Stubbings
Graphic Design | Motion Graphics
https://www.stubbings.ch
—

[Neil Stubbings]

Hello Dan

Is there any way to combine this delay expression with a springy expression?
So that the target object follows the motion of the leader in a springy dynamic way?

I tried to combine your springy expression i found with this delay expression, but I had no luck 🙁

Also what would be great if the target object can still be animated individually.
I am trying to build a dynamic character rig for a rubbery character. So when I animate the torso the head follows in a dynamic way, and the hair follows the head in a dynamic way. But of course the head needs also to animate individual to the body.

regards
Neil

—
Neil Stubbings
Graphic Design | Motion Graphics
https://www.stubbings.ch
—

[Neil Stubbings]

hey

somehow, i do not get this to work anymore… strange

try to do this simple thing:
– create a leader layer
– create a few following layers and apply the expression and said ” + value;” expression

the layers do not stay on their initial position. they jump to some other position. This of course totally messes up my puppet rig.

any ideas?

cheers
Neil

—
Neil Stubbings
Graphic Design | Motion Graphics
https://www.stubbings.ch
—

[Neil Stubbings]

wow, great thanks! works perfect!

cheers
neil

—
Neil Stubbings
Graphic Design | Motion Graphics
https://www.stubbings.ch
—

[Neil Stubbings]

hmm, gives me an invalid numeric result (divide by zero) on line 5

any ideas?

—
Neil Stubbings
Graphic Design | Motion Graphics
https://www.stubbings.ch
—

[Neil Stubbings]

oh man thanks alot dan, your wizardness is amazing!

—
Neil Stubbings
Graphic Design | Motion Graphics
https://www.stubbings.ch
—