Screenshot from the glTF Sample Viewer with the Wide Street environment light.
This model is a sphere using the glTF extension KHR_materials_anisotropy to create a carbon fibre material.
The normalTexture is a higher resolution than the others to preserve more details in the shapes of individual fibres. The anisotropyTexture could in theory be only 4x4 pixels however that tends to introduce upscale artifacts.
(C) 2023, Wayfair LLC. CC-BY 4.0 International https://creativecommons.org/licenses/by/4.0/. Model and textures created by Eric Chadwick.