Some of those properties are reachable. Polygon smoothing is. (ockhamsbungalow.com/python/SmoothOnOff.zip) I really thought Cast Shadows would be accessible, because it's an "old" menu choice. But no. I'll look at the dirt. Somebody (Shadownet?) asked me about this once before, and frankly I don't quite see the purpose.... Or rather, I don't see why it needs to be done at run-time. Is there a reason why this can't be done as part of painting the texture map?

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