Mauriccio Torres shared some interesting set of material functions, which can make your texture work a bit easier.
So far the functionality is pretty bare, but hopefully, it will be updated in the future. Here are the current features:
– Tint Albedo: Tints albedo map by changing the color for a new one
– Change Normal Intensity: Increase normal map intensity
What’s great about it, is that it could be used to achieve faster iteration and get a whole bunch of assets done really quickly. Just check out this work done on some of the fantasy shields by Mauriccio. There’s a lot of variety here.