AxF 1.3 SVBRDF AxF 1.3 supports SVBRDF with non-refracting clear coat. This format is required for compatibility with NVIDIA’s MDL format. Your download includes an informational PDF and a link to the following file: Material Name: X-Rite_Coated_Leather_NR Model: SVBRDF 1.3 Settings: Non-refractive clear coat, Leather, Isotropic, white speculars Description: Black leather with a vinyl coating. This material contains two normal maps, one for the clear coat, the other for the leather under the clear coat. Looking for more sample files? See the complete catalog here.