I have *never* figured out what lookat does -- it certainly doesn't work as
advertised. I end up with the wrong position and the wrong orientation.
The "UP" vector supplies the "roll" information so lookat can construct a
matrix with the proper orientation.
At 04:16 PM 2/18/99 +0100, Olszowy Karine wrote:
>Could someone tell me what is the third value of the
>lookAt method of a Transform3D ?
>
>In the specification it is said that is the frustrum's
>up direction...
>
>Does this function work good ?
>
>Thanks for your answer.
>
>--
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>- Karine OLSZOWY Ecole Superieure -
>- 1 avenue de Provence en -
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Pete Tinker
HRL Laboratories, LLC
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