Henyey-Greenstein Phase Function

Computer Graphics · Participating Media · 1941 · henyey-greenstein.yaml

A one-parameter phase function, originally fitted to interstellar dust, whose single anisotropy value spans strong forward through isotropic to backward scattering. Cheap to evaluate and to sample.

• supersedescorrects · extends
• classifiesspecializes · part-of
• substitutes forapproximates · alternative-to
• depends onrequires · validates

Colour is the family; a dashed line is the second member of it.

This node

• specializesis a specific case of Phase Functionone anisotropy parameter spans forward to backward

References

• Diffuse Radiation in the Galaxy — Henyey, Greenstein — 1941 · link
• Background — Henyey–Greenstein phase function on Wikipedia