In article <421cad09$1@news.povray.org>, "scott" <sco### [at] spamcom> 
wrote:

> Or a pigment that changes colour depending on the angle between the surface
> normal and the viewer.

I've got a patch that allows this...it adds some extra parameters to 
function patterns, giving them the ray direction and surface normal. 
Hopefully I'll release it this weekend. It's still more awkward for 
complex stuff than a full-fledged shader language would be.

However, you really don't need plugins. The existing system of code 
libraries can do everything plugins could, with fewer difficulties.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: <chr### [at] tagpovrayorg>
http://tag.povray.org/

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