POV-Ray : Newsgroups : povray.general : Blurred Reflections (just a suggestion) : Re: Blurred Reflections (just a suggestion) Server Time
4 Aug 2024 10:23:33 EDT (-0400)
  Re: Blurred Reflections (just a suggestion)  
From: Hugo Asm
Date: 6 Jun 2003 13:20:09
Message: <3ee0cd49$1@news.povray.org>
> Quoting:
>
> "You can get blurred reflection which works pretty much like the one in
> MegaPov, and which can even look better and be a bit faster to render"
>
> I think this qualifies for an answer (although it is not necessarily the
> original reason why this megapov 0.x patch is not in POV-Ray 3.5).

The "averaging normals" trick is more flexible than MegaPOV's blur patch (it
allows anisotropical reflections and a variable strength of blur) but in
certain cases, it's also much slower. I have discussed this earlier and
prooved it. I can't find my post at the moment when the webview is disabled.

Averaging the normals are slower when two or more reflective surfaces causes
the ray to ping-pong. I won't try to explain the technical reason, when I
don't know the source code for POV-Ray. But the speed difference is huge, in
those cases.

Regards,
Hugo


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