`bsdf wirediffuse(vector tangent)`

Diffuse function defined around a tangent vector. This can be used to produce the average diffuse illumination for thin wire-like primitives such as hair.

`tangent`

- tangent vector along the hair.

`bsdf wirediffuse(vector tangent)`

Diffuse function defined around a tangent vector. This can be used to produce the average diffuse illumination for thin wire-like primitives such as hair.

`tangent`

- tangent vector along the hair.

**Contexts: **surface