clipka wrote:

> BTW, I think one of the things to pay attention to in a next-generation POV
> version (i.e. 4.0) is to use lighting-model-independent descriptions of
> material properties, which each lighting model must then try to map to its own
> parameters as best as it can.

Sounds cool, but how would you describe any part of the texture in
a lighting-model-independent description? The best you could do is
to define a model as generic as possible (similar to the LightSys
includes?), and derive parameters for simpler lighting models from
there (as done by macros in LightSys). Having this built-in might
someday allow things such as more realistic photons taking the
actual light source spectrum into account.

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