Today Unity released the Unity Measured Materials library, a collection of over 300 materials themed around automotive and transportation projects. It contains hundreds of textures used to create Shader Graph materials. You need to use Unity 2018.3 or later.
The library includes:
- Fabrics with various weaves including herringbone, twill, brushed and plain weave
- Leather including different grain patterns and multiple perforation styles
- Multiple wood species
- Multiple chrome finishes
- Multiple metal finishes
- Opaque plastic with multiple grain patterns
- Transparent plastic
- Car paint
The collection is free on the Unity Asset Store available here. Currently, the materials only work with the HDRP with the lightweight pipeline being supported in the future. As you may notice from the video below… your mileage may vary!