Quote - > Quote - Here is my second try at the Thunderbolt car, I got the glass working quite a bit better.. this is with the refraction index at 1.1, down from the default of 1.5. The glass became opaque when the index got down to about 0.5.

Can't get rid of those last fireflies.

Sometimes it helps to read the words written of a rival program...lol.

I read (somewhere ;o)) that the fireflies are much more frequent and larger if the rendered pixel approaches pure white. I'm not sure if it's a bug with Lux or what can be done about it. But it sounded logical to me ;o). I'll have to go back over what i'd read to get the exact explaination ;o). But it had something to do with pure white, that I'm sure of ;o).

Laurie

Unless black is close to pure white, I may disagree.  Actually, it could be that the pixel that caused one of my fireflies was near to pure white, though it should have been black.  This is a known issue at Lux, and they are taking steps to make it better; though I don't know if they will completely get rid off all fireflies.