Gilles Tran wrote:
> 
> Vahur Krouverk wrote:
> 
> This looks very interesting and promising. I don't know much about RM
> shaders but if we could plug into free shaders libraries (is there such a
> thing by the way ?) this could greatly expand pov's texturing abilities.
For shader examples look http://www.renderman.org/RMR/RMRShaders.html
for various surface shaders (this is what my patch does).

> Could you give examples of things that could be made possible using shaders
> and which are currently impossible (or very difficult) to do with pov or
> megapov ?
>
Hmm, megapov has many additions, of which I'm not quite aware (haven't
POVed long time) so I could give example, which is invalid ;-) How about
anisotropic surfaces? I don't think, that it is supported by megapov. I
try to create number of various examples, when code is evolved enough.

> For example, would a "patina" shader be possible ?
I guess so, but I'm not sure, that I'm able to do it. Writing shaders in
RM SL is not very easy and requires certain skills. But it is required
for writing POVRay patch too. Hopefully when this patch is released,
then concern of some people, that POVRay gets too bloated, will decrease
;-)

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