POV-Ray : Newsgroups : povray.general : Radiosity doesn't take double_illuminate into account? Server Time
18 Nov 2024 23:42:09 EST (-0500)
  Radiosity doesn't take double_illuminate into account? (Message 1 to 2 of 2)  
From: Vampyrium
Subject: Radiosity doesn't take double_illuminate into account?
Date: 12 Jul 2002 14:59:27
Message: <3d2f270f$1@news.povray.org>
-Hail

 "Radiosity doesn't take double_illuminate into account."
  I thought I saw some test renders in p.b.i illustrating exactly this
feature, why is it in the known bugs list on the pov website since it has
been fixed?



            Vampyrium


Post a reply to this message

From: Samuel Benge
Subject: Re: Radiosity doesn't take double_illuminate into account?
Date: 12 Jul 2002 16:11:19
Message: <3D2F37E5.5010400@caltel.com>
I just tested my lamp scene in the official release and it works fine.

Double_illuminate doesn't work as completely as it should with radiosity 
yet. Say you make a triangle sitting up straight from a plane. You give 
it a basic texture and add double_illuminate. Now you take a spotlight 
and shine it onto the ground to one side of the triangle, making sure 
not to shine any of it on the triangle. On the side the light is on, you 
would expect to see reflected light on the triangle, right? Well, you 
do, but on the other side, you see nothing, even though the triangle 
double-illuminates. This is different than shining a light directly onto 
the triangle and seeing the light reflect onto the ground. You can 
overcome this by setting recursion_limit to 2 in the radiosity block.

Vampyrium wrote:

>    -Hail
> 
>  "Radiosity doesn't take double_illuminate into account."
>   I thought I saw some test renders in p.b.i illustrating exactly this
> feature, why is it in the known bugs list on the pov website since it has
> been fixed?
> 
> 
> 
>             Vampyrium
> 
> 
> 
> 


-- 
Samuel Benge

sbe### [at] caltelcom


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.