I can only get it on concave\internal edges but I'm trying to get a worn/dirty look on convex\external edges too.
So I'm getting nice dirty crevices but pristine and clean external edges. Looks rubbish.
Is it possible with Octane? Never mind. I worked it out. 2 dirt textures, 1 with inverted normals. fed into mix texture feeding colour corrections etc...
Intuitive as ever for Octane
