what is this?

[Walter Baker]

I just saw this in 15f

[rusty]

I just saw this in 15f

 

If you set a cup in the chor at 000 and then constrain it to a character's hand bone and that character walks off to the side and sets the cup on a table, the moment you deactivate that constraint the cup will jump back to 000. If my guess is correct, checking this one frame before you deactivate the constraint will set a key frame on the cup right were it is so that it doesn't jump back to 000.

 

Rusty

[Gerry]

Hi Walter - check out Robcat's excellent keyframing tutorial at http://www.hash.com/two/RCHolmen/KeyFrameOptionsMP4.mov and all will be revealed!

[robcat2075]

That particular option shows up only when the Constraints filter (handcuffs icon) is on.

 

 

Normally a bone gets keyed when it is moved.

 

But if it's constrained to something else which moves, the bone won't get actual keys representing that motion (it doesn't need them, it's constrained).

 

Forcing a key with that extra option will cause the bone to get keys equal to what the bone would have if it had moved to the new spot on its own.

 

Then you can turn off the constraint and the bone will not jump back to its last keyed position.