loop expression for walk cycle

[Filip Vandueren]

This works!

if (numKeys) {
kF=key(1).time;
kL=key(numKeys).time;
t=kF+((time-kF)%(kL-kF));
valueAtTime(t)
} else {
value;
}


[Scott Gaskin]

Dude your a star!! I love you! 🙂

Thanks for the quick response man, really appreciated.

Is there a website you can recommend I can learn more about these in regards to difference between shape layer expressions and others?

Scott

[Filip Vandueren]

Long story short: There are a few (not many) types of keyframes that are “special”.
Shapes, Masks, Curve- and Levels-histograms come to mind.

They usually can’t easily be expressed as a few numbers (where as position, rotation, colour, etc. can be easily expressed as a collection of 1-4 numbers)
That’s why not all expressions work on these.

Actually, I was thinking this solution itself wouldn’t work.
It’s kind of strange that loopOut doesn’t work if you can ask for a valueAtTime().
Maybe because while “cycle” and “pingpong” modes would work, there’s not really a straightforward way to define “offset” on a looping mask shape.

So I would just look out to the usual expression websites, and keep in mind what I said above: every so often you find a property whose keyframes are special.

[Scott Gaskin]

Thanks for the info dude! Really appreciated
Scott