Dipole Diffusion Approximation

Computer Graphics · Materials and BSDFs · 2001 · dipole-diffusion.yaml

Approximates subsurface transport with a pair of virtual light sources straddling the surface, reducing a volumetric simulation to a closed- form falloff.

• 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

• approximatesis a cheaper stand-in for BSSRDFa closed-form falloff instead of volumetric transport

Referenced by

• correctsNormalized Diffusion fixes a defect in thisthe dipole fits poorly close to the entry point

References

• A Practical Model for Subsurface Light Transport — Jensen, Marschner, Levoy, Hanrahan — 2001 · link