Copper Clean
Iron with a touch of Tail Mix
Gold with scratches
Harness the power of RenderMan's BumpRoughness and use a single map to drive Roughness, Bump & Anisotropy whilst retaining details no matter the distance the object is from the camera.
The Lama Conductor node is used to create metal or conductive materials.
This first example uses physical IOR and Extinction values taken from the very useful reference website, PhysicallyBased.info
This first example demonstrates how you can use the IOR and Extinction values from PhysicallyBased.info to accurately re-create real-world metals.
Copper Clean
Iron with a touch of Tail Mix
Gold with scratches
Harness the power of RenderMan's BumpRoughness and use a single map to drive Roughness, Bump & Anisotropy whilst retaining details no matter the distance the object is from the camera.
This second example replicates a tech metal that you find on modern electronic devices.
The IOR and Extinction are both set to Aluminum and a touch of extra color variation is added by mixing a solid color with a PxrFractal.
The main look of this material is created with the bump and roughness driven by a PxrFractal noise, with the parameters dialed down to create a very small white noise pattern.