Re: [script][5.11] Get difference between 2 rotations

[Martin Matzeder <xsi(at)booyabase.de>]

I'm afraid, doing this with euler angles is doomed. i would solve this 
in quaternion space like this
You have 2 start quaternions startQuat and  endQuat, and a Quaternion 
deltaQuat to store the result

endQuat.InvertInPlace()
deltaQuat.Mul(endQuat,startQuat)

this gives You the difference of this 2 rotations. Thought the object 
model You can apply it back

martin

Bernard Lebel schrieb:
> Hello,
>
> I'd need some guidance here. Say I have 3 objects. I want the third
> object to get the rotational difference between the first two.
>
> In a simplified example, the first object has rotx 25.0, the second
> has rotx 15.0, so I'd want the third object to get rotx of 10.0.
>
> I'm not sure at all where to go from there, using the XSI math
> objects. Do I have to perform a subtraction for every axis of the
> rotation?
>
>
> Thanks
> Bernard
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