POV-Ray : Newsgroups : povray.binaries.images : Caustics, caustics... : Re: Caustics, caustics... Server Time
4 Oct 2024 21:10:11 EDT (-0400)
  Re: Caustics, caustics...  
From: Fabien HENON
Date: 18 Mar 1999 16:53:14
Message: <3602E473.C9A603DC@club-internet.fr>
Very nice picture!
Here is a picture that is going to put renderman and its shader to shame.
I especially like the caustics of the whiskey. What a shame you did not work
more on the 'floor'.
I do hope that the photo mapping feature will be included in the next release of
POV.






> OK, you've already seen caustics with blobs, trees, birds... But have you
> seen the caustics of a fine glass of liquor...? You have? Well, have some
> more!
> This damn thing took 30 minutes to parse and 17 hours to trace on my
> PII416/64MB - mainly because reflections, but also because I turned on
> reflected caustics on the glass (you _can_ see them, can't you?). Also, AA
> had to be set to 0.1
> For my next feat, I'll add some ice cubes (with media interior, reflections
> and caustics), add reflections/reflected caustics to the whiskey and remove
> "ignore_photons" from the glass. Then I'll take a nice 3-year vacation in
> Burundi and hope to see it ready when I get back...
>
> The glass itself is simple CSG, needs some work. I feel there is something
> wrong with the refractions (at least upper part, where top of the wiskey
> meets the glass).
>
> It used 481,317 photons (overkill?), density .015, radius .15,2,.15. Whiskey
> had refraction on, the glass had refrection & reflection on and
> ignore_photons set.
> I can only hope that the bright splotches are caustics from the
> ornamentation on the glass.
>
> Margus
>
>  [Image]


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