Stores only a triangle id per pixel and refetches attributes during shading, trading arithmetic for a dramatic reduction in the memory traffic a fat G-buffer costs.
supersedescorrects · extends
classifiesspecializes · part-of
substitutes forapproximates · alternative-to
depends onrequires · validates
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correctsfixes a defect in Deferred Shadingfat G-buffers are bandwidth-bound at high resolution
References
The Visibility Buffer: A Cache-Friendly Approach to Deferred Shading — Burns, Hunt — 2013