[Radiance-general] Objects with plastic material in IBL scene

[Giulio Antonutto]

A possible reason:

is it -ab > 0 (i.e. rvu -ab 1 or rpict -ab 1) ? 
(needed if there are only secondary sources of light, such as the Sky...)
hope it helps,
giulio

PS I have Radiance 3.6.1 on 10.3.8, MacOSX, everything ok here, BTW it's a
pleasure to see how many people are running Radiance on a Mac ;-))



-----Original Message-----
From: radiance-general-bounces at radiance-online.org
[mailto:radiance-general-bounces at radiance-online.org] On Behalf Of Kirk
Thibault
Sent: 02 March 2005 14:09
To: Radiance general discussion
Subject: Re: [Radiance-general] Objects with plastic material in IBL scene

I had this occur as well when previewing in rview (rvu) but everything 
rendered fine when a final render was made.
To answer your question, I don;t know why.  I run RADIANCE on a Mac, 
OSX 10.3.X.

kirk

On Mar 2, 2005, at 5:13 AM, Tarik Rahman wrote:

> Hi
> Does anyone know why inserting a diffuse object in an IBL scene, such 
> as the
> red_plastic sphere in the Debevec tutorial does not reflect light 
> properly,
> i.e. renders as black? It works sometimes and other times it doesn't, 
> I don't
> understand why. The metal spheres such as the gold and steel ones and 
> the
> crystal  sphere all render perfectly but sometimes (not all the time) 
> any
> object with plastic material doesn't render properly.
>
> Tarik
> --
> Tarik Rahman
> PhD student, Institute of Perception, Action and Behaviour
> School of Informatics
> University of Edinburgh
>
> _______________________________________________
> Radiance-general mailing list
> Radiance-general at radiance-online.org
> http://www.radiance-online.org/mailman/listinfo/radiance-general


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