Below are some test renders coded through Renderman and woven into the DayBRIGHT graphics and data handling subsystems. Using the classic Cornell box, I was able to successfully simulate global illumination in combination with image based lighting. The photon calculation isn't as smooth (or as fast) as I'd like it to be - but optimization will be taken care of later once I can generate reliable image sequences.
Fig 1.1: Global illumination / color bleeding 
Fig 1.2: Image-based lighting with accurate shadows. Shadows no longer gradient of grays, but rather mixed with color pertaining to casting objects.
Fig 1.3: Classic Cornell box setup with pronounced color bleed
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