Hi everyone. A couple weeks back I made a fairly convincing granite 
texture with approximated pigment and finish values for its three main 
constituents (quartz, feldspar, mica). I didn't have a proper scene for 
it until today :)

The scene depicts a granite sphere broken in two by a heightfield. In 
the center there lies something you usually don't find smack-dab in the 
middle of common granite: a blood-red corundum; a ruby.

The scene took one hour, twenty-six minutes to render on my resurrected 
P4 1.6ghz computer. There are two 2x2 area_lights which would normally 
be very grainy, but since I added focal blur also, the grainyness almost 
completely disappeared.

Questions, comments?

-Samuel Benge

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