Picking random images

[Dan Ebberts]

And do what with it? To which property would this expression be applied?

Dan

[Tom Granberg]

Let’s say I have a 400X400 footage file with a new face on each frame, footage is 4sec long (120faces).
I want to drop that in my comp, place it, duplicate over and over, and each copy is showing a different face.
Preferably without a repeat/duplicate face.

[Tom Granberg]

I’ve messed with this a little bit, and it works pretty good.

I’ve set the fr to 0.1 to allow for a long hold.
Then adjust the numFrames to 120 to account for the entire range of the footage.

fr = 12; // frame rate;
numFrames = 8;
seedRandom(index,true);
seg = Math.floor(time*fr);
f = Math.floor(random(numFrames));
for (i = 0; i < seg; i++)
f = (f + Math.floor(random(1,numFrames)))%numFrames;
framesToTime(f);


fr = 12; // frame rate;
numFrames = 8;
seedRandom(index,true);
seg = Math.floor(time*fr);
f = Math.floor(random(numFrames));
for (i = 0; i < seg; i++)
f = (f + Math.floor(random(1,numFrames)))%numFrames;
framesToTime(f);

[Tom Granberg]

This is applied to the timeremap feature

[Tom Granberg]

While we are on this topic.
What is the best way to alter the above script to randomly pick a start point and play X amount of frames and then stop and hold?