Margus wrote

> Something I would really like is the ability to access POV's internal
> functions. Like trace, min_extent and max_extent in the Superpatch
> (incredibly useful functions, IMO), but also reflection, refraction, pigment
> or any other texture property at an intersection point, light intensity at a
> given point in space, etc. etc.

.. yes,yes.. and little things like normal of a  surface from the camera or
light, so that you culd then make the object's colour a function of the normal
at any point of the surface .... etc.
just like polyray did.... (does anyone remember....?)
benp

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