@60hz -- May I ask, do you have some advice for using [of.arealight], for example?
I just tried to draw a sphere with an [of.arealight] in the patch, and the only effect of the lighting is to make the sphere darker. I don't see any sort of shading for the shape's contour.
But, your of.arealight help patch does show at least some translucency(?) effects...
A bit pressed for time today, not much leeway to experiment with it, so I thought I'd ask what is the "right" way to set it up?