[Radiance-dev] Errors in ambient calculation in 3R7P1?

[Greg Ward]

Hi Mark,

Thanks for putting together a new benchmark.  I agree that the dark  
areas are concerning -- there may be a bug in the irradiance gradient  
calculation, since this is the only thing that could have such an  
effect.  I made a number of changes to the ambient calculation to  
accommodate the new rtcontrib program, and it may be that I broke  
something along the way.  I plan to investigate this weekend to see  
if I can find an error.  I performed a test of the ambient  
calculation including the irradiance gradient calc. when I made the  
changes, but perhaps I missed something.

I shall get back to you regarding what I find by Monday.

-Greg