POV-Ray : Newsgroups : povray.advanced-users : shadow on transparent background : Re: shadow on transparent background Server Time
29 Jul 2024 04:20:40 EDT (-0400)
  Re: shadow on transparent background  
From: klk
Date: 22 Dec 2002 10:10:10
Message: <web.3e05d4e2bffd917455d8c1ab0@news.povray.org>
Mike Williams wrote:
--skip--
>My usual method for this sort of thing is to do two renders, the first
>one is for the shadows and has special lighting. The shadows are
>rendered without alpha, but with very bright lighting (I use rgb 10) so
>that the surface onto which the shadows are cast becomes 100% white
>where it is illuminated. All the objects are no_image.
>
>I then use a second POV render stage, with normal intensity lighting, to
>render the objects and cast the shadow image map onto the background by
>using a two-colour gif image with transmit palette specifiers that makes
>the white bits invisible and the dark bits partially transparent,
>something like.
--skip--
>Mike Williams
>Gentleman of Leisure

 Ok. My method is almost the same. But DO we need two stages of rendering?
I'm not too lazy, but I'd like to render scene once... But maybe two-staged
render os the only possible way. :(

Bye.
Yours KLK aka Alex Kluchikov


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