Is anisotropic BSDF different to principled BSDF w anisotropy? I have a simple sphere. Half of it has an anisotropic BSDF material, the other half has a Principled BSDF material with anisotropy. I believe I have the same settings for the two materials, but they render differently. How do I get the materials to match?
It looks like if you play a bit with the Principled settings you get about the same result. I can't tell you more as I don't know anything about anisotropy   ;)