[ODE] FW: Quick dQuaternion question

[Auro]

Hi Jon,

can u plz explain the "Handedness neutral" bit? How can ODE be handedness
neutral - how can it even guess the handedness in the first place. Besides
quaternions in themselves have no handedness - that comes into play only
when u do a quat -> matrix conversion or the reverse. And looking at the ODE
code (quat -> matrix conversion) I'd say that ODE is very much right-handed
while DirectX is left-handed (OpenGL again is right handed).
Thanks beforehand.
Cheers,

 -Auro


On 6/5/06, Jon Watte (ODE) <hplus-ode at mindcontrol.org> wrote:
>
>
> No, you should not. You only need to change the order. ODE is
> "handedness neutral" -- if you put in left-handed coordinates and data,
> you will get out left-handed coordinates and data.
>
> Cheers,
>
> / h+
>
>
> justinleung at imagi.com.hk wrote:
> > >From my expriement to integrate quaternion in ODE to DirectX, beside
> the order
> > of W X Y Z, i need to invert the sign of X Y Z (i.e. -X, -Y and -Z) for
> correct
> > result. Is it normal?
> >
> > Justin
> >
> >
>
>
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>
>
>


-- 
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- Aurobrata Ghosh -
+91-9873159692
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