In article <3ef3420b$1@news.povray.org>,
 sascha <sas### [at] userssourceforgenet> wrote:

> Christopher James Huff wrote:
> 
>  > ...maybe even using ray differentials.
> 
> This would be a great feature because it would theoretically allow to 
> filter off high frequencies from pigments - like antialiased shaders do 
> in RenderMan Shader Language - making supersampling only necessary for 
> edges.

Yes...and a similar filtering could be used on the pigments to 
strengthen small details. However, the pigments would still need to be 
supersampled...it could just be done separately from edges. Maybe 
something like this: sample the surface coverage, computing an average 
location and normal for each surface hit by the pixel, and then compute 
texturing once with that information and the ray footprint. It may be 
too much work for the possible savings.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/

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