Hey Matt,
It's just a technique that I picked up from a video tutorial.
It's just a way to see where the photons are hitting. Are they energic enough? etc etc
Wow - never considered firing that many photons!
[time passes]
Okay, I set it to 100,000 and then 250,000 photons per sample.
It looked really good! I don't know how I missed that very important step the first time around. Guess I was too inexperienced to figure that out.
The blotches are all gone. But the area under the archways are actually darker here now. Hmm... If I remember, there are no multibounces when you use photons - is that correct? That would explain the area being darker as it is not in the direct sunlight.
Thanks again - be interested to get your feedback again.
