Recursive ray tracing with perfect mirror reflection, refraction and a single shadow ray per light. The first algorithm to get interreflection right, and restricted to ideal specular paths.
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.
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specializesis a specific case of The Rendering Equationonly mirror and refraction bounces, plus one shadow ray
Referenced by
correctsBounding Volume Hierarchy fixes a defect in thistesting every primitive per ray is linear in scene size
extendsPath Tracing adds capability to thisrandomizes every bounce instead of only mirrors
References
An Improved Illumination Model for Shaded Display — Whitted — 1980 · link