Rotation keying problem

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LSK
Posts: 18
Joined: 12 Dec 2012, 10:12

Rotation keying problem

Post by LSK » 17 Apr 2013, 13:14

hi all.
why when im rotating and keying some Gear controllers in softimage 2013 ,its keying Vice versa!! dont know why! for example when im rotating it for 30 degree and key it , after playing its rotating for 270 degree at the opposite way !!

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Draise
Posts: 891
Joined: 09 Oct 2012, 20:48
Skype: ondraise
Location: Colombia

Re: Rotation keying problem

Post by Draise » 19 Apr 2013, 10:25

This happened to me once, quite baffling, because I keyed under the the Rotate with Add (I think). If you change rotate to local or global, switch it around, I think that's the alternative, this will fix that keyframe. This has a lot to do with the axis of the control.
I am not sure what happened, but I gathered that in the viewport, you seem to rotate the key correctly, but in reality it adds the degree of rotation according to the control center orientation, creating a local SRT keyframe. But you really wanted a global SRT keyframe and it's value, but it didn't record that one, but a Rotate 270 degrees locally to it's current position you rotated globally, so there is a possibility the keyframe you made recorded the wrong SRT value, without compensating the amount you rotated in the local/global axis (one or the other, don't remember).

But a quick fix is just invert the keyframe value in the Fcurve editor.

Or do the keyframe under the right set of axis', local or global.

So here is a somewhat vague answer to.. a somewhat vague issue!

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3DMastermind
Posts: 16
Joined: 12 Nov 2009, 17:51

Re: Rotation keying problem

Post by 3DMastermind » 23 May 2013, 23:23

Sounds like 'gimbal'. If you animate in 'add' instead of 'local', you won't get surprises.

-manny
Manny Papamanos
AD Softimage and MotionBuilder Support Specialist

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