[Dan Ebberts]

In general, you would convert the audio to keyframes, then link the value of glow parameters to the keyframes via expressions. You might need to scale the keyframe values and you might want to add them to the existing values of your parameters. It all depends on what you’re trying to do.

If you need help with the specifics, please post more details about the relationship you want to establish between the audio and the glow parameters.

Dan

[Dan Ebberts]

Assuming that you are rotating the camera on its y axis, your time remapping expression will look something like this:

camera_angle = thisComp.layer(“Camera 1”).transform.yRotation;
(Math.floor(Math.abs(camera_angle%360 + 360)/90)%4)*thisComp.frameDuration

If you have it set up so your camera is the child of a null positioned at the center of the scene and you are rotating the null on its y axis, the expression should look like this:

camera_angle = thisComp.layer(“Null 1”).transform.yRotation;
(Math.floor(Math.abs(camera_angle%360 + 360)/90)%4)*thisComp.frameDuration

Dan

[Dan Ebberts]

Assuming you used Convert Audio to Keyframes, you probably want something like this:

mult = 0.5;
value + [0,thisComp.layer(“Audio Amplitude”).effect(“Both Channels”)(“Slider”)*mult]

Adjust the value of “mult” to set the magnitude of downward movement. Change it to a negative number to generate upward movement.

Dan

[Dan Ebberts]

Something like this should work:

numCol = 12; // number of layers in one row
origin = [width,height]/2; // center of upper left layer

row = Math.floor((index-1)/numCol);
col = (index-1)%numCol;
x = col*width + width/2;
y = row*height + height/2;
if (col%2) y += width/2;
[x,y]

Dan

[Dan Ebberts]

Try this:

freq = 2; //2 changes per second

cycle = Math.floor(time*freq);
seedRandom(cycle,true);
((Math.floor(random(4)) + 1)%4)*90

Dan

[Dan Ebberts]

Try this one”

txt = “”;
for (i = 1; i <= thisComp.numLayers; i++){ if (i == index) continue; L = thisComp.layer(i); if (! (L.hasVideo && L.active)) continue; if (time >= L.inPoint && time < L.outPoint){ txt = "" + L.position[1]; break; } } txt Dan

[Dan Ebberts]

You should save your scripts with a .jsx extension (from whatever text editor you’re using) so they’ll be recognized as scripts, but you should still be able to run it as a text file. Are you sure it didn’t run?

Dan

[Dan Ebberts]

In scripting you do have access to mask info, but I don’t think there’s a way to detect which mask is selected.

If you could specify the mask by number, it would be a bit of work, but you could set up a loop that would check each mask vertex for min x, min y, max x, and max y. It would then be easy to calculate the width and height of the bounding box.

Then what would you want to do with that info?

Dan

[Dan Ebberts]

You might parent a “heel” and a “toe” null to the foot and use something like this:

floor = 400; // y coordinate of floor
L = thisComp.layer(“right_heel”);
P1 = L.toWorld(L.anchorPoint);
L = thisComp.layer(“right_toe”);
P2 = L.toWorld(L.anchorPoint);
maxY = Math.max(P1[1],P2[1]);
if (maxY > floor){
value – [0, maxY – floor]
}else{
value
}

Dan

[Dan Ebberts]

What you want to do can likely be done, it’s just hard to say how though, without seeing what you have so far.

Dan