I am also interested in this, but I will be using an a triangle made by
stripifying
a quaderlateral.  The problem is this closest point may be from several
surronding
triangles.  Once the correct triangle is determined, the intersection can be
calculated.
How do you figure out which triangle?  Index number?

> ----------
> From:         Dipasqua, Aldo[SMTP:[EMAIL PROTECTED]]
> Reply To:     Discussion list for Java 3D API
> Sent:         Monday, March 27, 2000 2:30 PM
> To:   [EMAIL PROTECTED]
> Subject:      [JAVA3D] Picking a true sphere not the util Sphere
>
> Hi,
>
> has someone been able to pick a point on a true sphere (X*X + Y*Y + Z*Z =
> R*R) ?  I have done this with the Sphere class.  It is not exactly what I
> need since it picks a point on one of the surfaces which makes up the
> sphere
> (I use 50 divisions). What I need is to compute the intersection of the
> pick
> ray on a true sphere to simulate an earth view.
>
> Thanks in advance,
> Aldo Di Pasqua
>
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