Motion Track a Moving Puppet

[Bartek Skorupa]

Let’s say your layer with puppet tool is called “Layer1”
Let’s say that the absolute position of the other layer should be the same as the Puppet Pin 1 absolute position.

Place the following expression to the position of this other layer:

L=thisComp.layer(“Layer1”);
pin1=L.effect(“Puppet”).arap.mesh(“Mesh 1”).deform(“Puppet Pin 1”).position;
L.toComp(pin1)

voila

Bartek Skorupa
Warszawa, Poland

[Seb Mackintosh]

That’s great…

Do I need to change this for relative position?

Are there any good resources for me to read about expressions – and would using a pickwhip do anything like this?

Tks!

[Bartek Skorupa]

In fact I did’t write much.

I did as follows:

1. Alt-click the position.
2. write down:
L=
3. pick whip to the “Layer1” name.
4. write down:
;
5. hit enter (return)
6. write down:
pin1=
7. pick whip to the position of the pin
8. write down:
;
9 hit enter
10. write down:
L.toComp(pin1)

I had no idea about what “blableeblablee” stuff will be written. I only new the principles of “toComp” thing.

Bartek Skorupa
Warszawa, Poland

[Seb Mackintosh]

Working a treat. I’ve also tried just adding the difference in the X dimension at start point to .position and that works.

Now I see I’ve created a problem. My pusher man stretches back before then moving forward and the wheel is tied to him so also flies backwards. Not a good look!

I can’t find any material on how to only introduce the linked expression after a point in time (or a keyframe)…I’m guessing unless there’s a keyframe option, it’s an if clause of some kind…aaarrgghh…the things you do to learn this stuff!

Tks!!!

[Chris Wright]

to parent a layer object to a pin
and if the cart is a normal layer…

L = thisComp.layer(“face”);
L.toWorld(L.effect(“Puppet”).arap.mesh(“Mesh 1”).deform(“Puppet Pin 1”).position)
—-
and to parent a pin to a Null…
https://forums.creativecow.net/readpost/2/969088

https://technicolorsoftware.hostzi.com/

[Chris Wright]

and btw, if you precompose your pins, the newcomp can be fully motion tracked and then parented in any way you want.

https://technicolorsoftware.hostzi.com/