POV-Ray : Newsgroups : povray.text.scene-files : Buggy reflection? : Re: Buggy reflection? Server Time
28 Jul 2024 16:29:03 EDT (-0400)
  Re: Buggy reflection?  
From: Nathan Kopp
Date: 19 Dec 1999 22:29:43
Message: <385da2a7@news.povray.org>
SamuelT. <STB### [at] aolcom> wrote...
>     The water is bright no matter what in this. Seems to me it might be
> an angle-dependent reflection thing.

This is not so much of a bug as a lacking feature.  You see, POV originally
did not have angle-dependent textures, so you could get by with a constant
filter/transmit.

Now that angle-dependent textures are available, we need to allow filter and
transmit to be dependent on the reflection value.

So, in the next release of MegaPov, there will be available a flag that you
can put in your finish statement called "conserve_energy".  When reflection
increases, filter/transmit will decrease proportionally.  (e.g.  If
reflection is calculated to be 80%, your filter & transmit will be
multiplied by 0.20 which is 20%.)  This will conserve energy and keep things
'balanced', as Chris says.

Note that diffuse and ambient will not be affected by this automatic
balancing.

-Nathan


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