Instead of accepting or rejecting each collision outright, accumulates a continuous transmittance ratio, which removes the binary outcome that makes delta tracking noisy in optically thin media.
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.
Drag to pan · scroll to zoom · click a node to open it
This node
correctsfixes a defect in Delta Trackingthe binary accept/reject outcome is high variance
References
Residual Ratio Tracking for Estimating Attenuation in Participating Media — Novak, Selle, Jarosz — 2014 · link