Warp wrote:
>   Nobody has made a decent patch for it and there has not been enough
> popular demand.
> 
>   Note that mipmapping will not work correctly with reflection and
> refraction from curved surfaces.

And non-perspective cameras and shadows and non-linearly transformed 
(warped) images and all uses of images outside textures.

It is fair to say the concept of mip-mapping is essentially incompatible 
with raytracing although with a lot of work it could be possible to 
bridge this incompatibility of course.

>   OTOH, mipmapping can only add to the quality of the rendering.
> It will most probably not make any image look worse than what POV-Ray
> currently generates (when using image maps).

It will look worse in all cases the algorithm chooses a lower resolution 
map than it should.

Christoph

-- 
POV-Ray tutorials, include files, Landscape of the week:
http://www.imagico.de/ (Last updated 31 Oct. 2005)
MegaPOV with mechanics simulation: http://megapov.inetart.net/

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