Expression for color control

[Dan Ebberts]

Try changing this part:

holdTime = .5;
seed = Math.floor((time+preRun)/holdTime);

to this:

holdTime = .5;
seedRandom(index,true);
preRun = random(holdTime);
seed = Math.floor((time+preRun)/holdTime);

Dan

[Dan Ebberts]

Oops, I meant change this part:

holdTime = .5;
seed = Math.floor(time/holdTime);

Dan

[Greta Senne]

same result as before… maybe is added something in the wrong place?

l=thisComp.layer("Colors");

// retrieve colors stored in the color controls
i=1;
colors=[];

try {
while(l.effect(i)) {
// an effect exists, but is it a color control ?
// We'll check if it's first parameter is called "Farbe"
if (l.effect(i)(1).name=="Farbe") {
colors.push(l.effect(i)(1).value); // store the color in a list
}
i++;
}
} catch (e) {}

// Now if the list of colors contains any elements
// we will get a random value from the list.

if (colors.length) {
holdTime = .5;
seedRandom(index,true);

preRun = random(holdTime);
seed = Math.floor((time+preRun)/holdTime);

seedRandom(seed,true);

r=Math.floor(random(colors.length)) // a random integer
colors[r]; // return the color

} else {
// the list of colors is empty, so we use the existing color value.
value;
}

[Menno Wisselink]

Awesome, thanks!
Question; how to – not let it change every frame but just being static?

[Andy Teel]

How would I adjust this so that the color change duration is random and not every single frame?

l=thisComp.layer("Colors");

// retrieve colors stored in the color controls
i=1;
colors=[];

try {
while(l.effect(i)) {
// an effect exists, but is it a color control ?
// We'll check if it's first parameter is called "Color"
if (l.effect(i)(1).name=="Color") {
colors.push(l.effect(i)(1).value); // store the color in a list
}
i++;
}
} catch (e) {}

// Now if the list of colors contains any elements
// we will get a random value from the list.

if (colors.length) {
r=Math.floor(random(colors.length)); // a random integer
colors[r]; // return the color

} else {
// the list of colors is empty, so we use the existing color value.
value;
}