Christopher James Huff wrote:
>It depends what exactly you want...just a mark from the water level
>being higher in the past than it is now? Use a gradient pattern with
>some turbulence. Marks from water dripping and running down a wall? A
>bit more difficult, an image map would give the most control, but you
>could do it with a function pattern or even an object pattern with a bit
>of turbulence. The object pattern will always give a sharp edge though,
>with no soft edges or differences in color from distance to the stain
>edge.
>
>Christopher James Huff <cja### [at] earthlinknet>
>http://home.earthlink.net/~cjameshuff/
>POV-Ray TAG: chr### [at] tagpovrayorg
>http://tag.povray.org/
>

I'd like water stains leaking around concrete blocks - so sharp edges won't
be a problem. However, I can't seem to be able to find anything in the
documentation explaining object patterns - "object" and "patterns" are the
ultimate in non-specific search terms in the pov docs. If object patterns
won't work, however, how will it be possible to wrap an image map around
the inside of a toroid (CSG) - a curving tunnel, circular in cross section?

Thanks!

Jkior

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