Will a keyframe keep ease/influence settings when an Expression changes values of keyframe?

[Mikey-C]

Besides setting ease/linear/etc, I understand that an expression cannot make 'ease' adjustments, i.e. change the specific velocity/influence of a keyframe... BUT... what if you have an expression that changes, say, the time position of an existing keyframe which is, say, 'easy ease' and therefore has existing keyframe velocity settings?

For example, imagine this code snippet...

t1 = blahblah;
t2 = blahblahblah; 
v1 = valueAtTime(key(1).time); 
v2 = valueAtTime(key(2).time); 
ease(time,t1,t2,v1,v2)

Would the two keyframes above keep their ease influence settings despite moving in time?

Thanks in advance for any insight offered 🙂

[Dan Ebberts]

If you're not changing the values at the keyframes, you can keep the original easing by only remapping the time, something like this:

tA = 3; // new time for keyframe 1

tB = 4; // new time for keyframe 2

t1 = key(1).time; // original time for keyframe 1

t2 = key(2).time; // original time for keyframe 2

t = linear(time,tA,tB,t1,t2); // remap current time back to origianl time

valueAtTime(t)

This is not a complete solution, but you get the idea.

Dan

[Mikey-C]

Fab stuff Dan - Thanks for your help, much appreciated 🙂