[Dan Ebberts]

Try this expression for time remapping:

seedRandom(index,true);
time + random(outPoint)

Dan

[Dan Ebberts]

Try this expression for time remapping:

seedRandom(index,true);
time + random(outPoint)

Dan

[Dan Ebberts]

AE 7 has at least a couple of welcome changes related to creating expressions.

In most cases now, when you change a layer’s name it doesn’t break expressions pointing to that layer.

Saving a preset now has a new behavior that’s very handy for expression writers. If you save an expression as a preset for a property that has no keyframes, only the expression is saved – not the property’s static value. In 6.5, for example, if you wrote an expression for a bouncing ball and saved it as a preset, when you applied the preset to another layer, the layer would jump to the position of the layer that you used to create the preset. Now, the layer will stay where you put it.

Dan

[Dan Ebberts]

AE 7 has at least a couple of welcome changes related to creating expressions.

In most cases now, when you change a layer’s name it doesn’t break expressions pointing to that layer.

Saving a preset now has a new behavior that’s very handy for expression writers. If you save an expression as a preset for a property that has no keyframes, only the expression is saved – not the property’s static value. In 6.5, for example, if you wrote an expression for a bouncing ball and saved it as a preset, when you applied the preset to another layer, the layer would jump to the position of the layer that you used to create the preset. Now, the layer will stay where you put it.

Dan

[Dan Ebberts]

I think an expression like this would work for layers 2 thru n:

totalDelay = .5; // delay of last object (seconds)
myDelay = totalDelay/(thisComp.numLayers – 1)*(index – 1);
thisComp.layer(1).position.valueAtTime(time – myDelay)

As layer 1 speeds up the string will spread out. As you add more layers, the others will squeeze together to make room. The expression assumes there aren’t any layers in the comp except the leader and the followers. Adjust “totalDelay” to get the spacing you want.

Dan

[Dan Ebberts]

I think an expression like this would work for layers 2 thru n:

totalDelay = .5; // delay of last object (seconds)
myDelay = totalDelay/(thisComp.numLayers – 1)*(index – 1);
thisComp.layer(1).position.valueAtTime(time – myDelay)

As layer 1 speeds up the string will spread out. As you add more layers, the others will squeeze together to make room. The expression assumes there aren’t any layers in the comp except the leader and the followers. Adjust “totalDelay” to get the spacing you want.

Dan

[Dan Ebberts]

Try this expression for position:

freq = 2; //oscillations per second
amp = 50; //oscillation amplitude

delta = amp*Math.sin(time*freq*2*Math.PI);
if (position.speed != 0){
v = normalize(position.velocity);
v = [-v[1],v[0]];
value + v*delta;
}else{
value;
}

Dan

[Dan Ebberts]

Try this expression for position:

freq = 2; //oscillations per second
amp = 50; //oscillation amplitude

delta = amp*Math.sin(time*freq*2*Math.PI);
if (position.speed != 0){
v = normalize(position.velocity);
v = [-v[1],v[0]];
value + v*delta;
}else{
value;
}

Dan

[Dan Ebberts]

Play around with this:

myEndTime = 4;
decay = 5;

segMin = 1.0; //minimum segment duration
segMax = 3.5; //maximum segment duration
minVal = [0.1*thisComp.width, 0.1*thisComp.height];
maxVal = [0.9*thisComp.width, 0.9*thisComp.height];

end = 0;
j = 0;
if (time < myEndTime){ t = time; }else{ t = myEndTime + (1 - 1/Math.exp(time - myEndTime))/decay; } while ( t >= end){
j += 1;
seedRandom(j,true);
start = end;
end += random(segMin,segMax);
}
endVal = random(minVal,maxVal);
seedRandom(j-1,true);
dummy=random();
startVal = random(minVal,maxVal);
ease(t,start,end,startVal,endVal);

The layers don’t completely stop, but it might be close enough.

Dan

[Dan Ebberts]

Play around with this:

myEndTime = 4;
decay = 5;

segMin = 1.0; //minimum segment duration
segMax = 3.5; //maximum segment duration
minVal = [0.1*thisComp.width, 0.1*thisComp.height];
maxVal = [0.9*thisComp.width, 0.9*thisComp.height];

end = 0;
j = 0;
if (time < myEndTime){ t = time; }else{ t = myEndTime + (1 - 1/Math.exp(time - myEndTime))/decay; } while ( t >= end){
j += 1;
seedRandom(j,true);
start = end;
end += random(segMin,segMax);
}
endVal = random(minVal,maxVal);
seedRandom(j-1,true);
dummy=random();
startVal = random(minVal,maxVal);
ease(t,start,end,startVal,endVal);

The layers don’t completely stop, but it might be close enough.

Dan