Pre/Post extend a channel in Channel Editor

[dbukovec]

hi!

Is there a feature in Channel Editor to Pre or Post extend an anim curve to infinity, with constant, linear or other methods?

Really miss this, it's very usefull.

Thanks.

[anim]

you have that kind of possibility

what you have to do is:

add a keyframe far beyond/before the last/first keyframe

then in channel editor select that segment (between last and this, or between first and this)

then you can choose interpolation function for that segment at the bottom of the channel editor

so for constant you do not have to do all this, but you can choose constant()

for linear or gradient extrapolation you can choose matchin() or vmatchin() for post and matchout() or vmatchout() for pre-"infinity"

to repeat all or range you can use repeat() function

to relative repeat you can choose cycle() function

maybe one bad thing about the last two is, that you have to specify range you want to cycle/repeat, so if you at later time shift source keyframes in time you need to update range in cycle() function manually too

to cycle pre-infinity you need to put reverse range like cycle(100,1)

not sure why this do not work for repeat() too

do not forget there is always the world of chops for you

[dbukovec]

Thanks Anim, i knew about this method, i was wondering for easy one, just to select a chanel and do pre/post stuff, thanks anyway for long explanation, hope that for faster workflow the Channel Editor will have some love sometime.

Also baking keys (or expressions to keys) would be a nice addition, I know about chops way, but it would make life much simplier.

Thanks again!