oxonian nous apporta ses lumieres ainsi en ce 2004-11-08 15:56... :

>Take a look at the following image:
>
>http://homepage.mac.com/oxonian/peapodCurve.png
>
>......the problem is with the outer layer of the structure (the green
>nanotube), which is material{M_NB_Winebottle_Glass}. The pixel level
>sparkly dots spoil the glassy look. What I'd like is a look more like the
>ruby glass in this:
>
>http://homepage.mac.com/oxonian/N@C60.png
>
>....of course I've tried changing to the ruby glass, and indeed changing all
>the settings in the material, but it seems it's not the glass color or
>basic properties that are to blame, but rather the complexity of the image
>behind. I can't seem to fix it except by going for an ior near to 1.0 - at
>which point it ain't glass no more!
>
>I can just give up on the idea of having the outer tube as glass, and
>instead go for a dark metal, but I thought I'd post to see if anyone has a
>solution.
>
>
>  
>
You may need a larger max_trace_level and/or increase adc_bailout. 
Changing the fade_distance to a lower value may also help, but overdoing 
it can make your glass opaque.

Alain

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