A deep lecture on surfaces by crtl+Paint
founder
I got a note that ctrl+Paint has got some new offerings on their store that might help you with your surfaces.
The newest offering explores making realistic surfaces for your objects and environments as well as work flows on how to achieve them. He's got a sample video that I'll link below for your perusal. The surface tutorial is only ten bucks as well. Fairly reasonable, I'd say.
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