Volumetric Path Tracing

Computer Graphics · Participating Media · volumetric-path-tracing.yaml

Extends path tracing with sampled scattering events inside media, choosing a distance along each ray and then a new direction from the phase function.

• 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

• extendsadds capability to Path Tracingpaths can scatter inside a volume, not only at surfaces
• specializesis a specific case of Radiative Transfer Equationsolves it by random walks through the medium

Referenced by

• correctsDelta Tracking fixes a defect in thisheterogeneous media have no closed-form transmittance

References

• Background — Volumetric path tracing on Wikipedia