Fredrik Eriksson <fe79}--at--{yahoo}--dot--{com> wrote:
> On Sat, 13 Feb 2010 21:05:06 +0100, Warp <war### [at] tagpovrayorg> wrote:
> > Hence the near and far clipping planes could indeed be "encoded" into the
> > transformation matrix by specifying the depth scaling (which, I suppose,
> > would prove my original assertion in this thread wrong).
> >
> >   However, I don't remember if something else was involved for this to
> > work properly.

> The clipping itself becomes slightly more complicated in that it must be  
> performed in homogenous coordinates.

  Ah, yes, homogenous coordinates. It starts ringing bells now. That's the
thing I was not remembering in all this. (Man, it has been a long time since
I knew all these things.)

-- 
                                                          - Warp

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