[Radiance-general] Re: Cumulative calculations of irradiance

[Rob Guglielmetti]

On Jun 9, 2008, at 6:57 AM, John Mardaljevic wrote:

>
> If I understand the question correctly, It's more efficient to  
> render using a 'sky' file that contains both the cumulative sun  
> (e.g. many suns) and the cumulative sky [1] contribution since the  
> inter-reflection calculation will determine the indirect sun  
> component as well and the direct + indirect sky components.
> -John
> [1] Cumulative sky could be based on either brightdata format or an  
> aggregated 'image'.
>

John-

How would I do this with brightdata?  I use a modified version of  
Francsco's radmap to produce the aggregated image for these types of  
analyses, but I'm interested in learning how to apply a brightdata  
method instead.  Is this faster?  What is the input?

- Rob Guglielmetti