unwanted movmement

[waterbear]

Everytime I make ananimation I have to deal with a situtation like this:

frame 10: Character stands with hand on hip
frames 11-19: Character's hand moves around but only slightly (even though it shouldn't)
frame 20: Character's hand is back where it should be and where it was in frame 10.


I've had things like that happen between 2 frames that are exactly the same, not to mention keyes that have one thing staying still from the previous frame and have other limbs moving. I've tried just keying certain bones as well as keying select bones. It's a really annoying problem.

Ideas as to why it happens and how to fix/prevent it?

[wulfie]

At least I think it's called overshoot.

I actually think I might be able to answer this question.

Open the graph editor (Make sure the window is fully expanded) Select all channels (XYZ HPB etc) Autofit the window so you can see all the keyframes. Select all keyframes on Frame 10 and 20 and set the incoming curve to linear. That should stop things from wandering around in between times. I hope this fixes your problem and I hope I have suggested the best fix!

Bev

[Dodgy]

It's better to set just frame 20 to linear. Also you could use tension set to 1 or continuity set to -1.

[Surrealist.]

Yeah, I agree. Linear is a pretty good fix but since it is all on or all off I tend to stick to TCB or bezier editing to make sure I always have fluid motion. If I go and change that key to another pose I don't have to reset the curve type.

[hrgiger]

You get motions like this because Lightwave interpolates keyframes by default as a curve and not a straight line. You have to go into the graph editor and add tension to the curve to keep the bone from "drifting". No need to change the curve type.