in news:web.5c3796f4cbe7b4b248892b50@news.povray.org jr wrote:

> improves on the test scene.

:) I'll come up with some examples how to use these. A big chunk of them 
only provide 'refinement' of what already can be done with texturing. 
Different interpolation between gay values etc.

In general, I think tutorials on fragment shaders for webglw (GLSL (OpenGL 
Shading Language)) etc. will give clues how to use such funtions.

It would be nice if the functions VM language would evolve a bit in that 
direction, without throwing away the goodies we have. If only it was for 
readability of the code,

ingo

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