Re: How to make perforated steel?
also to add the rust try using a 'mix map' in the diffuse slot, then you could try adding the metal material in the colour 1 swatch of the mix map, and the rust bitmap in the colour 2 swatch, let me know how it goes, post some renders of your material so far, it makes it easier to advise and also to see what you are trying to do
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