Anybody know of some good resources to learn how to make advanced materials?

Id like a good book or online class where i can learn advanced material creation, the basic materials tutorial vid by corona was awesome but i want to go more in depthy, thanks

Well, have you seen this one?

What specific materials do you mean? Usually it’s observing a material in real life/reference photos and trying to figure out how to simulate the observed phenomena using tools available in material editor.

What’s up with Outputs after the AO map? Isn’t the same thing achievable within the AO map itself, with Invert normals and Color spared options.

Not exactly. With AO map you get nice gradient from occluded to unoccluded colours and with Output map you can finetune that same gradient in a way you could never achieve with controls available in AO map.

Have you seen any of the Grant Warwick vray tutorials? A lot of of can be easily translated into Corona.