random freeze frame time remapping

[Dan Ebberts]

Try this:

seedRandom(index,true);
freezeTime = random(inPoint,outPoint);
Math.min(time,freezeTime)

Dan

[Kevin Camp]

dan beat me to it

🙂

Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW

[Kevin Camp]

something like this might work for you:

seedRandom(index,true);
random(inPoint,outPoint)

paste it into the time remapping expression field

Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW

[Dan Ebberts]

They’re not quite the same though. Yours may be what he’s after. Mine runs until it hits the freeze frame.

Dan

[Steven Kutny]

Thanks guys, this works! I appreciate it.

Steven Kutny
Digital Artist
http://www.stevenkutny.com

[S.j. Deluise]

How would I modify this to change the speed at which the freeze frames change in the main comp?
Right now my precomp has a bunch of sequenced photos at 1 frame a piece — or should I precomp differently?

[Dan Ebberts]

What do you mean by “change the speed”? What are you trying to do exactly?

Dan

[S.j. Deluise]

I want to show a random photo in the precomp for about 3 frames each. (or longer, depending on how it feels), then duplicate the precomp to create a mosaic of randomly cycling images.

With this…

seedRandom(index,true);
freezeTime = random(inPoint,outPoint);
Math.min(time,freezeTime)

…it is cycling thru the photos really fast. But I suspect my precomp is setup wrong to make proper use of the expression.

My current workaround was sequencing all the photos in the precomp at 3 frames each. In the main comp, I’m just using a loopOut, and then creating my duplicate precomps and offseting them so they run at different points. I’m sure there’s a much neater, and more random way to do this.

[Dan Ebberts]

Something like this probably:

freezeFrames = 3;
seed = Math.floor((time – inPoint)/framesToTime(freezeFrames));
seedRandom(seed,true);
freezeTime = random(inPoint,outPoint);

Dan

[S.j. Deluise]

I’m getting odd results. My main comp is 10 sec. My precomp layer is time remapped with this expression, but for the first 5 seconds, the time-remap value stays on :25, then a couple times in the last 5 seconds, it changes to a random value, then back to :25.
And the first time remap keyframe of my precomp is also set to hold. Is that wrong? Embarrassed, I think I’m butchering this.