ashikhmin

bsdf  ashikhmin(float exponentx, float exponenty, vector framex, vector framey, ...)

bsdf  ashikhmin(vector nml, float exponentx, float exponenty, vector framex, vector framey, ...)

An anisotropic bsdf similar to phong() but with independent controls for the highlight size along 2 tangent vectors.

exponentx

Phong exponent along the framex vector.

exponenty

Phong exponent along the framey vector.

framex

Highlight X direction.

framey

Highlight Y direction.