> 
> Yes. I noticed it however most pigments loks like colored correctly even they
> have no colour_map specified ? If it is correct behaviour then it is report for
> documentation becouse there is no note (or I couldn't find any) about default
> color_map for wood and bozo. I checked 6.7.11.36, 6.7.11.4, 6.7.1.3 and others.
> 
> Also when I use my script with pigment{wood/bozo} for objects I achived sharp
> green, blue, red and white shapes for bozo and light/dark brown for wood with no
> smooth transition however documentations says in 'bozo' section "If two points
> are close together, the noise values at those points are close to each other."
> If they aren't I expect some color_map included. But it looks like it is not
> described anywhere.
> 

This is all due to the default color_map.  Bozo gets one with sharp
borders while wood has a smooth brown color_map by default.  This has been
standard for a long time, just have a look at the 3.1 source.  I think it
has already been considered changing this to a default grey gradient for
all patters, but this would discontinue old standards.

And i think you are right, the default color maps are not documented.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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