Uniform Diffuse Distribution (Photometric Lights)

Uniform diffuse distribution casts diffuse light in one hemisphere only, as if the light were emitted from a surface.

• Create panel > (Lights) > Photometric > Click Target Light or Free Light. > General Parameters rollout > Light Distribution (Type) group > Choose Uniform Diffuse from the drop-down list.

Uniform diffuse distribution obeys Lambert’s cosine law: the light has the same apparent intensity when viewed from any angle.

Uniform diffuse light distribution

Note: Uniform Diffuse distribution was known simply as Diffuse distribution in releases prior to 3ds Max 2009.