[Bf-funboard] flip quaternion rotations

[David Bryant]

In working on some motion graphics I got the same results.


----- Original Message ----- 
From: "Leandro Inocencio" <cesio.arg at gmail.com>
To: <bf-funboard at blender.org>
Sent: Friday, June 20, 2008 8:39 PM
Subject: Re: [Bf-funboard] flip quaternion rotations


> El vie, 20-06-2008 a las 15:05 +0200, Bassam Kurdali escribió:
>> Hi folks
>> I just found today an awesome (hidden?) function in blender.
>> If you press alt-F with a bone selected in pose mode (in the 3d view)
>> you get to flip the quaternion rotation. I just found out about it by
>> total accident (hit the wrong key instead of alt-G) and one of our
>> animators instantly needed!
>>
>> two questions:
>>
>> why doesn't it (or does it?) have a menu entry for discovery.
>>
>> why isn't it available in the IPO editor, or action editor so you could
>> do it for multiple keys,
>>
>> and third question: is it possible that it could autokey? currently you
>> have to press I.
>
> i agree, with autokeying.
>
> the problem of fliped quads appears when one rotation transform excede
> 180 degrees, get non-intuitive result.
> Look the example:
>
> http://cesio.arg.googlepages.com/flip.ogg
>
>
> Cesio.
>
>
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