Rafal 'Raf256' Maj nous apporta ses lumieres ainsi en ce 26/08/2004 
07:35... :

>sev### [at] NOT_THISsibafi news:412dca8d$1@news.povray.org
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>Hmm yes. (Btw - what about old "caustics" finish?).
>So applying fading to photons should work all right.
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The old caustics are still there and fully useable. The problem, is that 
those are distance independent. So, you take a refractive sphere, shine 
light thrue it, and the bright spot stay the same size 1 unit away and 
1000 units away. It's OK for a water surface casting caustics under it, 
but that's all.

Alain

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