POV-Ray: Newsgroups: povray.newusers: render on transparent background ?: Re: render on transparent background ?

POV-Ray : Newsgroups : povray.newusers : render on transparent background ? : Re: render on transparent background ?		Server Time 5 Sep 2024 08:21:35 EDT (-0400)

From: Ron Parker
Date: 23 Apr 2001 17:03:28
Message: <slrn9e9652.3ri.ron.parker@fwi.com>

On Mon, 23 Apr 2001 16:59:49 -0400, Lothar Esser wrote:
>Hi,
>
>  I would like to know if it is possible to render an image on
>transparent background. Initially I thought of
>something like background {color <1,1,1> transmit 1} but it does not
>seem to work ( background is still white )
>I know that I can post-process an image by using say ImageMagick and set
>all white background pixels to fully transparent. However I would like
>to skip this extra step if possible.

You might try rendering to a format that supports an alpha channel, and
turn on the +UA option.  Beware, though, that antialiasing will introduce
a "fringe" of your background color.

-- 
Ron Parker   http://www2.fwi.com/~parkerr/traces.html
My opinions.  Mine.  Not anyone else's.

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