wiggler expression for position

[Matt Paintin]

I want to have a random movement on a layer using the a wiggle expression but I only want it on one axis.

Using this:

wiggle(1,50)

makes it pop around on the screen, so what do I need to add to this to get it to work up and down only?

Also, is there a 'library' of sorts that anyone can point me at that has some useful expression examples to get me started.

I realise thats a little like 'how long is a piece of string' but its worth asking!

Thanks

[Todd_Kopriva]

Here's a search that pulls up the answer to your question about wiggling on one axis.

> Also, is there a 'library' of sorts that anyone can point me at that has some useful expression examples to get me started.

Yes. It's the After Effects Help document.

• Expression basics
• Expression language reference
• Expression examples

[Matt Paintin]

Thanks for your reply Todd

I'll take a look

[Rick Gerard]

Position is an array. It's defined in square brackets. To make the wiggle expression work only in x write it this way:

x = wiggle(5,50)[0];

y = value[1];

z = value[2];

[x, y, z]

This will allow you to add position keyframes to the layer.

[Matt Paintin]

Thanks for replying Rick, very useful.

I notice that there a few ways to achieve a similar effect now

[webMotion1]

A great library can be found at http://www.motion-graphics-exchange.com/

[Matt Paintin]

Thanks for that...

Found loads of other goodies there too..