POV-Ray: Newsgroups: povray.binaries.images: Re: Subsurface Scattering: macro now available (21kb jpeg): Re: Subsurface Scattering: macro now available (21kb jpeg)

POV-Ray : Newsgroups : povray.binaries.images : Re: Subsurface Scattering: macro now available (21kb jpeg) : Re: Subsurface Scattering: macro now available (21kb jpeg)		Server Time 12 Aug 2024 01:24:41 EDT (-0400)

From: Mike Williams
Date: 30 Nov 2003 07:41:15
Message: <3fc9e56b@news.povray.org>

I've found out what I was doing wrong previously with the colours of the sss
objects. What was happening was that I hadn't noticed that the macro
requires the target object to be centred at the origin. In the previous
version of the image over 100% of the trace() operations were missing the
eyeballs and lips objects. I now translate the objects to the origin,
perform the sss, then translated them back. Due to the irregular shape of
the objects about 97% of the trace() operations performed by the macro still
miss the object, so I added a tweak to my copy of the macro to omit the tens
of thousands of blob components that are centred at the origin.

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