"David" <dh2### [at] iucrorg> wrote in message
news:web.3f26493e63b187465c8e72650@news.povray.org...
>
> Sorry I must have phrased it wrong. What I want is away of simulating dirt
> collecting in corners.

IMHO the short answer is "no" - the longer answer is "yes, but not with just a
texture".

Options include image maps or applying appropriate textures to each wall
separately.

The problem you/pov faces with this is that the areas where dirt collects say
more about the cleaning-lady's abilities rather than any inherant property of
the point that you want clean/dirty (so, for example, the slope pattern is no
help).

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