Rotating Ball Matinee Problem

[rapidfireshot]

A little bit of background...

Yeah, hey I had a problem today. After thinking for hours on how to set up my character (a rolling ball) I figured out how to do it. First thing was to make the ball mesh...but wait! I can't attach to a static mesh... Well I thought about it for a while, and eventually I just dropped an interpactor for my static mesh of a ball and attached it to a GamePawn. Yay! On to my next thing.

So I figured out a way to rotate the ball, but I need to do that in Kismet, and its not working.

Start reading here for the problem:

Basically I created a 5 second animation with keyframe at 0 having rotation at 0, keyframe 1.5 having it at 180 and keyframe 3 having it at 360 again. Perfect right? Except when I play it it does all these wierd rotations left and right (wobbly kind of) that are evidenced none whatsoever in my matinee sequence. I remembered I had this problem on Max when trying to do a rotation of a gear, and I researched and found something called Gimbal Lock, so this may or may not be my problem.

Any suggestions or solutions? I'm stumped.

[JessieG]

Does it do the same thing in matinee when you play the animation there?

[rapidfireshot]

Yes, it does.

[JessieG]

It might be because it's attached to something else. The different translations might be messing up the animations.

[ffejnosliw]

In the properties of your movement track, try enabling Use Quat Interpolation.

[rapidfireshot]

Okay I'll try that. Oh, the attachment might be the problem...any way to only attach movement and not rotation?

EDIT:

The use quat interpolation worked! I read and it says it finds the shortest distance to keys without easing in/out. This is nice and I will probably have more use for it in the future.

Second problem:

I need a quick way to loop my matinee sequence in kismet. I have it set so that the vector changes based on what direction he walks, and then if the mobile joystick is held down I want it to loop this animation, which will rotate as needed and provide a good animation of the rolling ball rolling towards its destination.

;D Oh, and thanks everyone for your help