On Mon, 05 Jun 2000 14:44:01 -0700, David <dav### [at] maccom> wrote:

> And why is PNG the only other option? What about PICT? 

PICT is primarily a "Mac" format. PNG is far more cross-patform, and
is designed specifically to be a superior replacement for the GIF
format.

>Or JPEG? 

JPEG is certainly useful, but it is too lossy and has too many
artifacts for many people's needs. 

PNG is lossless. PNG files can also be created as true-color images,
or with palettes, similar to GIF palette-based images.  JPEG images
can't be created as palette-based images. Palette-based images
actually have their uses in POV-Ray, especially as input-images.


>Why does anyone use GIF anyway?

There are some "input-file" applications that only work well with GIF.
Certain types of filtering, in their use as image_maps, for example. I
don't think PNG's behaved in exactly the same manner in all cases, but
the exact details of the descrepancies escape my memory at the moment.

Later,
Glen Berry

7no### [at] ezwvcom
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