Dan Ebberts
936
AE Expressions Coins
82
After Effects Coins
1,794
COW Coins
115
Solve Coins
Adobe After Effects Expressions Forum Leader Badge
Forum Replies Created
-
Give this a try, it should be close:
groupSize = 13;
leaderIndex = Math.floor((index – 1)/groupSize)*groupSize + 1;
d = delay*thisComp.frameDuration*(index – leaderIndex);
p = thisComp.layer(leaderIndex).position.valueAtTime(time – d);
[p[0],value[1]]Dan
-
Give this a try, it should be close:
groupSize = 13;
leaderIndex = Math.floor((index – 1)/groupSize)*groupSize + 1;
d = delay*thisComp.frameDuration*(index – leaderIndex);
p = thisComp.layer(leaderIndex).position.valueAtTime(time – d);
[p[0],value[1]]Dan
-
OK – give this a try. “spd” sets how fast it tracks the null.
spd = .05;
level = thisComp.layer(“Audio Amplitude”).effect(“Both Channels”)(“Slider”);
accum = 0;
f = Math.round(time/thisComp.frameDuration);
for (i = 0; i <= f; i++){ t = i*thisComp.frameDuration; accum += level.valueAtTime(t); } thisComp.layer("Null 6").transform.position.valueAtTime(accum*spd); Dan -
OK – give this a try. “spd” sets how fast it tracks the null.
spd = .05;
level = thisComp.layer(“Audio Amplitude”).effect(“Both Channels”)(“Slider”);
accum = 0;
f = Math.round(time/thisComp.frameDuration);
for (i = 0; i <= f; i++){ t = i*thisComp.frameDuration; accum += level.valueAtTime(t); } thisComp.layer("Null 6").transform.position.valueAtTime(accum*spd); Dan -
This should do it:
d = delay*thisComp.frameDuration*(index – 1);
p = thisComp.layer(1).position.valueAtTime(time – d);
[p[0],value[1]]Dan
-
This should do it:
d = delay*thisComp.frameDuration*(index – 1);
p = thisComp.layer(1).position.valueAtTime(time – d);
[p[0],value[1]]Dan
-
It depends on exactly what you’re trying to do. If you have a keyframed movement and you want it to go twice as fast, for example, you could use an expression like this:
valueAtTime(time*2)
If you want to manipulate the velocity as the layer moves, that’s a different story and requires a more complicated expression.
Another alternative is to turn on time remapping and apply an expression to that property.
Like I said, it depends on what you’re trying to do. 🙂
Dan
-
It depends on exactly what you’re trying to do. If you have a keyframed movement and you want it to go twice as fast, for example, you could use an expression like this:
valueAtTime(time*2)
If you want to manipulate the velocity as the layer moves, that’s a different story and requires a more complicated expression.
Another alternative is to turn on time remapping and apply an expression to that property.
Like I said, it depends on what you’re trying to do. 🙂
Dan
-
You’re welcome, but easy on the “Mr.” 🙂
Dan
-
You’re welcome, but easy on the “Mr.” 🙂
Dan