POV-Ray : Newsgroups : povray.binaries.images : Photons are cool!!!! - Updated Athene scene : Re: Photons are cool!!!! - Updated Athene scene Server Time
15 Aug 2024 18:12:56 EDT (-0400)
  Re: Photons are cool!!!! - Updated Athene scene  
From: Nathan Kopp
Date: 13 May 2002 22:19:53
Message: <3ce07449@news.povray.org>
"Slime" <slm### [at] slimelandcom> wrote...
> That's sort of good, but the biggest problem is that the water surface is
> unrealistically shaped, so the light effects that the photons create look
> strange.
>
> I suspect you're using bozo for the water's normal? I suggest you try
> wrinkles and the f_ridged_mf function also and see what results you get
from
> those. I think those will make the water more realistic, and at the same
> time make the photons more realistic.
>
> It also looks like your reflection amount may be too high. Maybe not. I
> dunno.

Yes, the water appears to be too reflective.  Realistic water should user
fresnel reflection with an IOR of 1.3.  A scattering media interior would be
great (don't use photons on the media, though, for speed reasons), but a
fade_distance and fade_color in the interior would be sufficient.

Here's a good tutorial:
http://www.schunter.etc.tu-bs.de/~chris/pov/water/

-Nathan


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