Le 2023-12-21 à 15:42, Bald Eagle a écrit :
> Does anyone know how to implement the irid {} feature in the finish {} block of
> a texture?
> 
> Or to be more accurate, how do I get iridescence to be visible on a clear
> surface?
> 
> clipka posted some beautiful bubbles, and I can't seem to achieve anything close
> to the transparent but well-defined iridescent pattern that he gets.
> 
> I tried adding interior {ior 1.4} but that didn't work (and I get weird
> artefacts}
> 
> http://news.povray.org/povray.binaries.images/thread/%3C4ed6f24c@news.povray.org%3E/
> 
> I looked in the distro, and it appears that we're missing an example scene for
> this feature.
> 
> - BW

You just need to remember that iridescence acts pretty much the same way 
as emissive media : It adds to whatever is behind it. So, it tend to not 
show on white surfaces.

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