[Hamish]

Ok. I did know how double sided rendering worked, I was just hoping there was some easier to consume way to enable it - perhaps as a material setting or perhaps as a property on the mesh object node.

Thanks for the source, I'll definitely take a look, but as I'm still evaluating your product, I'll most likely wait till your new version is released. I'm also looking forward to the oct-tree implementation you said was coming out in the upcoming version too.