[Radiance-general] sharing the ambient cache

[Rob Guglielmetti]

Greg Ward wrote:

> Hi Rob,
>
> Jack de Valpine or John Mardaljevic may know more about this than I  
> do, as they have experience using different ambient settings in  
> different runs, whereas I tend to stick with the same settings I  
> start with.  In general, it's safe to run with reduced ambient  
> settings in subsequent renderings when you share an ambient file.   
> Specifically, it's OK to relax the -ad and -as settings, and -aa and - 
> ar as well.  You can reduce -ab (though -ab 0 won't use the ambient  
> file values at all), but I wouldn't recommend changing -av or -aw.   
> (There is no speed advantage to doing so, anyway.)

Well, I'd certainly love to hear Jack and John chime in, but you have 
given me what I was looking for to proceed with confidence.  Thanks!

- Rob