GN PBR Validate

This node is designed to validate the PBR values of your materials in Substance Painter, using the Diffuse / Specular workflow.
Like the PBR Validate for Base Color / Metallic workflow included in Substance Painter, this node will generate a Good-to-Bad "Heatmap" (Green-to-Red) showing which values are correct or incorrect according to PBR standards.
This node also offers a couple of options to adjust the behavior of the heatmap and the tolerance to incorrect PBR values.

Available for free on my ArtStation store:
https://gabrielnadeau.com/store/jdRD/substance-painter-gn-pbr-validate