[Radiance-general] IES file manipulation

Greg Ward gward at lmi.net
Thu Jun 24 09:08:39 CEST 2004


Hi Mark,

Did you try the -i option to ies2rad?

-Greg

> From: "Mark de la Fuente" <MdelaFuente at wmtao.com>
> Date: June 24, 2004 12:08:51 AM CEST
>
> Hi everyone,
>  
> I have a situation where I'm using ies2rad to bring files into 
> radiance.  Only I want to attach the photometric info to illum 
> surfaces surrounding my detailed fixture geometry rather than to the 
> default geometry...  (pretty typical I think) However in order to do 
> so, I have to add rectangles in order to "seal" my fixture.  I am 
> concerned that the addition of these rectangles will affect the 
> magnitude of the photometric information.
>  
> I guess one way to not even deal with boxing the luminaire with illums 
> is to attach a negative value to the lamp's glow material.  Then rays 
> won't "sneak out".  Of course the lamps won't add internal 
> illumination in that case.
>  
> Any thoughts would be appreciated.  I will try and run some tests when 
> I get a chance.
>  
> Thanks.
>  
> Mark




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