Here's some experimentation with use of radiosity to imply a "light
source over there". It uses a large inverted sphere with a gradient
pigment that is black to the left and white to the right.
I also have an idea about using a "radiosity light bulb"-- perhaps not
an original one. When I tried it, I got just a few big white spots and
then only after putting ambient to like rgb 200 or something. Has
anyone ever had success here; any suggestions on which radiosity
parameters to tweak??
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