Exponential keyframes for Z position?

[Andy George]

Hi Kristel,

You could use an expression to create exponential scale along the z axis-

Here is one I found at AEenhancers.com

accellMultiplier=5;
x=position[0];
y=position[1];
z=position[2]+(time-(Math.exp(time*accellMultiplier)));

[x,y,z]

This expression causes your layer to move backwards in z space exponentially over time. accellMultiplier lets you affect when the curve reaches “terminal velocity.” If you want to reverse the direction of the push, change the ‘+’ before the parentheses in the z definition to a ‘-‘.

-Andy

[Kristel Ottis]

That’s very close to what I was looking for, but I don’t think it works in my case as I also have a third Z position keyframe (0) that the object is landing on after going from 40000 to -75.

if I use the script from AEenhancers, the speed from second to third keyframe will be exponentially modified as well, but that’s not needed.

[Andy George]

Check out this script Ease and Wizz I just stumbled on.

https://ianhaigh.com/easeandwizz/

Types of easing

Regular easing (from most to least dramatic)
Expo, Circ, Quint, Quart, Quad, Sine
Special types
Back, Bounce, Elastic

I have not used it yet myself but
I think it might be just what you need.
Looks very cool-

-Andy

[Kristel Ottis]

Very neat tool – thanks for the tip.

I have a feeling that I may be trying to do exactly what is currently impossible with Ease and Wizz – its “Elastic” effect in conjunction with Curvaceous:

“Note that when you turn on the Curvaceous checkbox, the easing types “Elastic” and “Back” are removed. This is because the expression is unable to extrapolate beyond the end of a curved path (if some mathematical genius wants to figure out how, lemme know).”