Traces a ray toward the light per shaded point. No resolution, bias or cascade artifacts at all, replaced by sampling noise and a per-pixel tracing cost.
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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alternative-tois a competing approach to Shadow Mappingno resolution or bias artifacts, but noise instead
specializesis a specific case of Next Event Estimationthe visibility term of a direct lighting sample