Oops. Sorry.
Maybe you may try to use a greyscale version of your image_map as pattern
for a texture_map (and use your normal image_map inside every textures).

--
Jonathan.
"Mick Hazelgrove" <mic### [at] mhazelgrovefsnetcouk> ha scritto nel messaggio
news:3be536c2@news.povray.org...
>
> "JRG" <jrg### [at] hotmailcom> wrote in message
> news:3be53443@news.povray.org...
> > Instead of using a color_map to define transparent and non-transparent
> areas
> > use a texture_map.
>
> I'm using an image map with the transparent areas defined by the alpha
> channal attached to the image map - so I can't really do this.
>
> Mick
>
>
>

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