Expression. Random start-position to final-position

[Dan Ebberts]

You haven’t said much about the timing or nature of the movement, but play around with this:

moveDur = 1;
seedRandom(index,true);
startPos = random([thisComp.width,thisComp.height]);
ease(time,inPoint,inPoint+moveDur,startPos,value)

Dan

[Kasper Nyman]

Hi Dan,
Basically what you just made it what I’m looking for. Great job.

You are right, should have written somthing about timing or nature of the movement. But how do I control Duration and Ease?

And last one, can I add a wiggle to that expression, so the movement is more wiggly, if not, no worries.

And thank you so much. I’ve tried to read up on expression but need more practice.

Nyman

[Dan Ebberts]

This will add some wiggle:

moveDur = 2;
wiggleAmp = 100;
wiggleFreq = 3;

seedRandom(index,true);
w = wiggle(wiggleFreq,wiggleAmp)-value;
startPos = random([thisComp.width,thisComp.height]);
ease(time,inPoint,inPoint+moveDur,startPos + w,value)

You can control the duration by adjust moveDur. With ease, your choices are ease() and linear(), unless you want to add your own easing calculation.

Dan

[Dan Ebberts]

Actually, there are also easeIn() and easeOut().

Dan

[Kasper Nyman]

Thank, thank you much, this is really cool and helpful.

Have a great day!

Nyman