Shadow transperancy problems 2004-04-12 - By Visual Impact
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No Simon,
I still haven't sorted out the problems with virtuaout.
John
Simon Windmill wrote:
>Like Tom says, you have to use raytracing to get correct shadows out of
>a transparency-mapped object in most rendering systems, and the usual
>alternative for soft shadows is to use an array of lights or an area
>light.
>
>I did a quick test in VirtuaLight, using a tS goniometric light which
>virtuaout converts to a spherical area light:
>
>http://www.coolpowers.com/lab/data/transmap_vlight.jpg
>
>You can set how many samples to use for the shadowing - more = better =
>longer render times, as always. This one used 16 samples and took about
>47 seconds.
>
>Just for comparison, the tS version:
>
>http://www.coolpowers.com/lab/data/transmap_ts.jpg
>
>I couldn't actually get tS to render with its own area light in tS5.1 -
>does it have to be done in a radiosity calculation?
>
>PS - John, I know you were having trouble with transparency maps and
>virtuaout, did you get it sorted?
>
>Simon.
>
>
>
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