I've tried to model this setup:
http://kschwebke.webng.com/povray/ior-interfaces/drawing.png
with the following SDL:
http://kschwebke.webng.com/povray/ior-interfaces/rs2.pov.txt
A small overlap between the two transparent solids is needed, because a gap
would lead to total reflection. The camera in the test scene looks in the
direction of the ray in the setup drawing. The setup is surrounded with angular
markers, so one can easily read the final resulting looking angle.
http://kschwebke.webng.com/povray/ior-interfaces/rs2-35.jpeg
POV-Ray 3.7.0b35a (compiled Unix source) renders a different
http://kschwebke.webng.com/povray/ior-interfaces/rs2-37b35a.jpeg
From: clipka
Subject: Re: Possible Bug in 3.7.0b35a? (wrong refraction angle between different IOR me=
Date: 6 Apr 2010 17:34:27
Message: <4bbba8e3$1@news.povray.org>
Am 05.04.2010 22:23, schrieb Kai:
> http://kschwebke.webng.com/povray/ior-interfaces/rs2-35.jpeg>> POV-Ray 3.7.0b35a (compiled Unix source) renders a different> http://kschwebke.webng.com/povray/ior-interfaces/rs2-37b35a.jpeg
I checked with a different test setup, to find that 3.7 indeed behaves
differently to 3.6; as I can't make out any benefit of the new behavior
I'd consider it a bug indeed.
clipka <ano### [at] anonymousorg> wrote:
> I checked with a different test setup, to find that 3.7 indeed behaves> differently to 3.6; as I can't make out any benefit of the new behavior> I'd consider it a bug indeed.
Thanks for taking a look. I've filed a bug report for this issue:
http://bugs.povray.org/task/94?project=2