This is a fully procedural painted metal shader. No textures or UV unwrapping required.
It's all contained in one node with customisable options such as paint amount and grunge amount.
Enjoy!
Tip: when changing the tiling, alter the mapping node before the noise scale, as the latter does not alter the bump map.
This is incredible. It's amazing that this doesn't use any textures. Thank you so much.
Awesome work! And THANK YOU for adding the frames in the node - it helps a LOT to understand what each group is doing so it's easier to make changes! Beautiful!!!
Still trying to really understand this great looking materal. Still works, even in EEVEE! One thing I've found in Blender 2.8 release version though - if expand the node to check things out, all the colour disappears and I can't get it back. Makes it hard to understand the nodes! Maybe someone who knows what they're doing could fix this?
This is awesome, thanks for sharing.