Ok. But LUA executes strings of code. Then you can write something like in
POVRAY code
color = lua_color_shader("function color_from_normal(position,normal,...)
return n;", position, normal,...);
LUA is an extension language as Scheme(Like Lisp), ELK, SmallC(Like C), and
SL (RMan)... But it hasn't restrictions so you can use it in many ways. For
example, in procedural animation, or like PHP for creating a new chain of
code.

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news:3c1b5fd7@news.povray.org...

> > I think that your idea it's possible and can be made now.
> > There is an extension language with it's byte code very
> > simililar to VB and cross-platform, it's name is LUA.
> > The only thing you need to do is link its lib and call
> > the code as an string or as a compiled file. Then you can
> > retrieve the retur values as a vector, a single float, etc.
>
> There is already a patch of POV-Ray called POV-Man that allows you do
write
> shaders in a shader language in separate files that are compiled.
>
> But what I was talking about was a solution in POV-Ray script that could
be
> written directly in the scene file.
>
> Rune
> --
> 3D images and anims, include files, tutorials and more:
> Rune's World:    http://rsj.mobilixnet.dk (updated Nov 5)
> POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
> POV-Ray Webring: http://webring.povray.co.uk
>
>

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