In article <3da59141$1@news.povray.org> , "Sascha Ledinsky" 
<sas### [at] opensyscoat> wrote:

> does anyone know a compile/patch for pov that supports MIP-mapping for
> image-maps or other types of interpolation than bilinear (bicubic would be
> nice).
> Or the other way round: Is there a reason for mip-mapping isn't supported (I
> think every $100 graphics card can do it ;-)

Because mip-mapping is pointless for a ray-tracer?  In essence the only need
for mip-mapping is to reduce artifacts when there is no anti-aliasing or
anti-aliasing is very hard to do and interpolation of the image is out of
the question as well.  This is the case for Z-buffer based renderers like
your $100 graphics card, but not for POV-Ray.  The gain from using
mip-mapping in POV-Ray would be zero as far as quality is concerned.

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

Post a reply to this message