Thanks for the help guys! I think I get it now.

Mitch

"Josh English" <eng### [at] spiritonecom> wrote in message
news:3A26959E.326A719F@spiritone.com...
> You're doing fine, Dawn, but your answer was a little incomplete.  Adobe
Photoshop
> saves the first alpha channel data into PNG format as well, and I beleive
Paint Shop
> Pro does, but I haven't used it.
>
> Another thing to note is that the first that you try it you might find the
background
> shows up, but part you want to keep is hollow, and to fix it you need to
reverse the
> alpha channel of the image.
>
> Josh
>
> Dawn McKnight wrote:
>
> > Mitch Klein wrote:
> > >
> > > Thanks for the reply, Pete. That's IS what I meant. So, if the alpha
map is
> > > embedded in the image, using the image as a map automatically adds the
> > > alpha?
> >
> > Since I've been playing with this the last few days, I'll go ahead and
> > answer; please keep in mind that I'm a novice, too, so I may not give a
> > complete answer.
> >
> > Yes, that's correct.  If you use a PNG with an alpha channel (to date,
> > the only program I've found that fully supports alpha channels for PNG
> > is 'The Gimp' (http://www.gimp.org)), POV will automatically use the
> > alpha channel for transparency mapping.
> >
> > The nice thing about this is that PNG supports separate transparency
> > values for every color in an index, so you can get some interesting
effects.
> >
> > --
> > Dawn McKnight      | "Who cares what the hipbone's connected to? I'm in
Neurology!"
> > McK### [at] maccom   |                                    -- Justine
Devlin, M.D.
>
> --
> Josh English -- Lexiphanic Lethomaniac
> eng### [at] spiritonecom
> The POV-Ray Cyclopedia http://www.spiritone.com/~english/cyclopedia/
>
>

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