Scale related to postion

[Scott Mcgee]

There is probably a better way to write this, but it works. If the eyes are in the centre and move left or right, they do get smaller based on the x Axis.

This is going off if your eyes to start off with are at 100%

x = transform.position[0];
if (x >100) [x-100,x-100]-[transform.scale[0],transform.scale[1]]
else [x, x]

[Max Wolkowitz]

This is a good start, and I’ve adjusted it to do a bit more what I described (expression below), but I’m not sure how to adjust this so that I can affect the rate of the shrinking. Right now it goes down 1% for every pixel it moves. I’d like to it shrink less so that I can move it further away without it disappearing.

x = transform.position[0];
if (x >960) [x-960,x-960]-[transform.scale[0],transform.scale[1]]
else [transform.scale[0],transform.scale[1]]


[Scott Mcgee]

I haven’t figure it out the other way as in if it goes left (x<960), but if you /(number of choice) this reduces it.

x = transform.position[0];
if (x >960) [x-960,x-960]/5-[transform.scale[0],transform.scale[1]]
else [transform.scale[0],transform.scale[1]]

Just because I’ve got another job to work on, but if you figure it out let me know, if not you’ll find another post by me tomorrow with an answer probably.

[Scott Mcgee]

I came across this trying to find someway of getting the value to spread itself.

This works spot on, so give this a try and see if it’s what you want.

f = 2; //factor to increase scale by
min = 0; //distance in pixels from the center where the layer is at full scale
max = 1000; //distance in pixels from the center where the layer is at ‘normal’ scale
c = [thisComp.width / 2, thisComp.height / 2]; //center of the composition
p = toComp(anchorPoint); //location of the current layer in the composition
d = Math.abs((p – c)[0]); //distance from the center along the x-axis
ease(d, min, max, f * value, value);