See article http://www.geometrictools.com/Documentation/LeftHandedToRightHanded.pdf
Regards,
--- Em qua, 6/5/09, Alen Ladavac <ale...@cr...> escreveu:
> De: Alen Ladavac <ale...@cr...>
> Assunto: Re: [Algorithms] Left-handed vs. right-handed
> Para: "Graham Hazel" <gra...@ge...>
> Cc: "Game Development Algorithms" <gda...@li...>
> Data: Quarta-feira, 6 de Maio de 2009, 8:31
> Graham wrote at 5/6/2009:
> > Since it’s clearly “correct” to be agnostic, I
> prefer to work with
> > the chirality that the graphics driver expects.
>
> Which one of the driver multitude of possible drivers and
> APIs? Even
> if you are single-platform-single-API and if you adapt
> everything to
> "The One API" you use now, few years from now you may have
> to adapt
> the same codebase to a different platform/API. I'd bet you
> are safer
> sticking to the winding (or chirality, call it all you
> want) that
> _you_ prefer, and be prepared to convert signs and windings
> on every
> interfacing point with any external API. It's not _that_
> much of a
> hassle, as long as you are clear on what you use
> internally.
>
> JM2C,
> Alen
>
>
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