I wanted to see how close Radiosity could get to pure ambient occlusion. 
I found out that it's very close, and that there are only some minor 
differences. The bottom line is that radiosity (using one bounce and a 
white background) is about the same as regular AO.

For this experiment, an object with lots of nooks and crevices was 
helpful, and that's where my inverted quintrino came to the rescue. The 
only adjustment I did to the image was an inverse gamma correction.

You can see the results on my webpage by following link below. You can 
drag the slider back and forth, or click "AO" or "RADIOSITY" at the top 
and it will slide across automatically. Or you can click anywhere in the 
image and the dividing line will slide to that location.

https://scorpius.github.io/compare.htm

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