**comp.graphics.algorithms**

## Subject: **Re: Basic perspective/normal q**

[Jongware]

> Well, my C compiler doesn't accept

> > (P-P0).N = 0

Of course it doesn't --- that's not C, it's vector algebra. The '.'

in particular is a scalar product operator. I had assumed that much

to be obvious to somebody who just implemented matrix-vector

multiplication.

--

Hans-Bernhard Broeker (broeker@physik.rwth-aachen.de)

Even if all the snow were burnt, ashes would remain.

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