Curve Functions?

[steven]

I've got an expression that returns a normalized value from 1-0, and now I want to change the linear results to something with easin/out, like a hermite function. Before I try this in CHOPS (and I'm sure many would say, "Use CHOPs"), I want to try something that takes start, end, and current values as arguments. I can't seem to get the ease functions to work.

[GallenWolf]

Hi Steven,

Perhaps you could use the "smooth" expression? See the null1's spare channels to see if that's what you are looking for.

Regards,

Alvin

usingSmoothExpression.hip

[rdg]

and I'm sure many would say, "Use CHOPs")

http://www.gizma.com/easing/

here you'll find lots of different easing equotations.

t = current time

b = start value

c = end value

d = duration

But I think the visual feedback of chops is worth any hassle ....

Georg

[steven]

Done and done. Thanks, Alvin. Just got buyoff with the smooth expression. Worked like a charm.

Georg, that link to the easing functions is now in my top 5 bookmarks. And, with the recent buyoff, I'm looking at CHOPs to get the "scalable, extensible" solution.

[edward]

I want to try something that takes start, end, and current values as arguments. I can't seem to get the ease functions to work.

FYI, the ease functions are like cubic(), linear(), etc. They use time as the current value and the start/end values from the keyframes adjoining the channel segment.