Angelo 'kENpEX' Pesce wrote:

> Because I'm sure that maaany intresting shaders will be made if we
> make an easy system to do them. Just check out how many shaders you
> can find for renderman, or how many shader collections there are for
> raytracers that support pluggable shaders (mentalray,lightwave, or mhm
> do U know/remember the essence collection for imagine??). Just think
> about cloud shaders, skin (translucent) shader, special effects,
> cel-look shaders, improved local reflection models... With renderman
> shaders you can even replicate fur...
> Also this is a feature that is not common among freeware raytracers
> (and not so common among commercial raytracers too) so povray could
> make another big step toward being the definitive renderer
> 

By the way, Renderman shaders are much more clear and compact than
many Pov textures (instead of finding contorsions necessary to create a 
given effect, you just code it). In the second edition of the Procedural 
Texures book there are extremely powerful shaders which are shown in
little more than 20/40 lines (and don't tell me you can do everything with
feature X... if this was true, there would be no need for anything besides
assembler!)

If Pov has to have a future, programmable shaders are a must.

Bye!!!
Alessandro Coppo
REM### [at] iolit

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