POV-Ray : Newsgroups : povray.newusers : angle of incidence of rays of light : Re: angle of incidence of rays of light Server Time
7 Dec 2021 17:21:08 EST (-0500)
  Re: angle of incidence of rays of light  
From: Jim Holsenback
Date: 23 Sep 2018 10:18:59
Message: <5ba7a0d3$1@news.povray.org>
On 9/23/18 9:20 AM, ttyUSB0 wrote:
> I have a material that creates a shadow of varying density, depending on the
> angle to the direction of the light rays.
> Is it possible to specify a variable transmission of light through the surface,
> depending on the angle of light rays incidence?
> 
> 

sure povray does that ... check out ior to characterize the interior of 
your material. have a look in the docs Reference->Scene File 
Extras->Include Files you'll see ior mentioned in a couple of places. 
look in glass.inc and you'll see how to put together a material 
definition. transmit and filter in pigment is worth looking at...povray 
has subsurface light transport too


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