"Josh English" wrote:
> I have a method for doing this, btw,on my site.
>
> The demonstration is a bit dull:
>
> http://www.spiritone.com/~english/cyclopedia/background.html

It's a very nice technique, but not really related to the alpha channel.
Using the alpha channel lets you make a background for your POV-Ray image
*outside* POV-Ray, while your technique allows one to add a background image
*inside* POV-Ray. There's a big difference.

Greetings,

Rune
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