Diffuse

Diffuse reflection in hair shaders controls how light scatters through the hair fiber’s cortex. This property affects the overall base color visibility and soft scattering behavior of hair strands under direct and indirect lighting.

Parameters

Display Name	Name	Type	Default
Weight	diffuse_reflection_weight	float	0.0
Color	diffuse_reflection_color	color	1.0, 1.0, 1.0

It adds a Lambertian diffuse component for greater control over the look of hair fibers.

Weight

This parameter sets the weight of the additional diffuse reflection component. At 0.0, the hair fiber exhibits specular scattering, while at 1.0, completely diffuse scattering.

Note

A healthy-looking human hair fiber does not have any diffuse component. However, the diffuse component can create effects such as makeup, dirty or damaged hair, and fabric threads.

Weight: 0.1

Weight: 1.0

Color

This parameter sets the color of the diffuse scattering component.

Color: Texture

Color: Texture