>   Because povray doesn't model just spheres and cylinders without
textures.
>
>   To get a decent scene you need lots of primitives and complicated
textures,
> lighting algorithms and so on.

a couple of those on the site do feature proc textures, a variety of shapes
and simple csg animations.

however these raytracers are very highly optomised to just the scenes the
demo shows, and there is often a pixel doubling routing on the go to blow
the real time rendered output (anything from 160x80 - 320x240) up full
screen


--
Rick

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