Trevor G Quayle <Tin### [at] hotmailcom> wrote:
> I like the way you've shown it.  Would it not be cleaner to do it direectly with
> out the dummy pigment?
> #declare R = max_extent(jpg "MyImage");

> I think this would be more inuitive.  Or is this more difficult to implement?

  I would have to implement a "read only the header of a given image file,
but not the image itself", which would be rather laborious. Reading the
entire image file (and then just dropping it) would be a waste. Could as
well just do that into a pigment identifier.

  Besides, I don't think your suggestion is more intuitive. In fact, quite
counter-intuitive because it makes a function act nothing like other similar
functions.

-- 
                                                          - Warp

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