oxonian wrote:

> 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.
> 
> 
Are you using antialiasing in the first image ? If not, that might be a 
solution to get rid of the sparks.

Hope this helps

-- 
Vincent

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