POV-Ray : Newsgroups : povray.general : Question to Kari about his glassware : Re: Question to Kari about his glassware Server Time
7 Aug 2024 15:18:04 EDT (-0400)
  Re: Question to Kari about his glassware  
From: Trevor Quayle
Date: 11 Oct 2001 17:29:25
Message: <3bc60f35$1@news.povray.org>
Yes I have been trying that with limited success, I can get a somewhat
blurry reflection but not much control over it, it renders horrible without
AA as well.

-tgq


"Rune" <run### [at] mobilixnetdk> wrote in message
news:3bc60d42@news.povray.org...
> "Trevor Quayle" wrote:
> > I have been using a white sphere with a high ambient value
> > (say 100) with global ambient set to 1. All other textures
> > have ambient set explicitly to 0.  This seems to work as I
> > want it to for shiny surfaces. I'm still working on a way
> > to get a blurred reflection.
>
> Using a normal scaled very small combined with heavy antialiasing would
work
> if POV-Ray did antialiasing before doing color-clipping to the 0-1 range.
>
> But because POV-Ray do color-clipping before antialiasing, this doesn't
> work.
>
> This may sound bad, but there's a reason that POV-Ray works this way. If
it
> did color-clipping after antialiasing, it would mean that very bright
> objects in the scene would not be properly antialiased because the bright
> samples in an antialiased pixel would completely outweigh the dim samples,
> even if there are more dim samples.
>
> So unfortunately I see no solution...
>
> Rune
> --
> 3D images and anims, include files, tutorials and more:
> Rune's World:    http://rsj.mobilixnet.dk (updated June 26)
> POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
> POV-Ray Webring: http://webring.povray.co.uk
>
>


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