Re: Bug in spec, and spec. addition proposal

Chris Schoeneman ([email protected])
Mon, 15 May 1995 12:20:35 -0700

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> Anyway, I'm certainly going to assume you cannot use perspective matrices to
> model in VRML, and I assume most browsers will blithely ignore the fourth
> column. However, the spec. should definitely take a stance on this issue:

I noticed this too and I agree it shouldn't be required. I mailed Tony
about this last week:

> o MatrixTransform
> Says some transformations may give an error. Should also define
> what transformations must _not_ give an error (e.g. non-singular
> and affine).

This doesn't proscribe perspective matrices, but they are not guaranteed
to be supported.

Cheers,
-chris

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