Hi. I'm a new user to POV and I'm trying to wrap my brain around angled
planes.  I understand planes such as: plane { y, 4 }, but I'm having
trouble with a plane such as: plane{ <1,0,-30.4> 0}. Any help would be
appreciated. Thanks.

John

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"John" <jbt### [at] hotmailcom> wrote:
> Hi. I'm a new user to POV and I'm trying to wrap my brain around angled
> planes.  I understand planes such as: plane { y, 4 }, but I'm having
> trouble with a plane such as: plane{ <1,0,-30.4> 0}. Any help would be
> appreciated. Thanks.
>
> John

I'm sure you know this, but the first value in the plane{} statement is a
normal vector, that is that the defined vector is orthogonal to the plane.
If you were to draw a line from the origin to the normal, any line drawn on
the plane would be at 90 degrees from it.  So in your example of
plane{<1,0,-30.4>,0} you'd draw a line from <0,0,0> to <1,0,30.4> and the
plane will be perpendicular to it existing at the origin.  Hope that
helped.

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"Mienai" <Mienai> wrote:
> "John" <jbt### [at] hotmailcom> wrote:
> > Hi. I'm a new user to POV and I'm trying to wrap my brain around angled
> > planes.  I understand planes such as: plane { y, 4 }, but I'm having
> > trouble with a plane such as: plane{ <1,0,-30.4> 0}. Any help would be
> > appreciated. Thanks.
> >
> > John
>
> I'm sure you know this, but the first value in the plane{} statement is a
> normal vector, that is that the defined vector is orthogonal to the plane.
> If you were to draw a line from the origin to the normal, any line drawn on
> the plane would be at 90 degrees from it.  So in your example of
> plane{<1,0,-30.4>,0} you'd draw a line from <0,0,0> to <1,0,30.4> and the
> plane will be perpendicular to it existing at the origin.  Hope that
> helped.

Thank You.  That helped immensely.

John

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