Hierarchical Z-Buffer

Computer Graphics · Visibility · 1993 · hierarchical-z-buffer.yaml

Keeps a mip pyramid of depth so a whole screen region can be rejected in one test against its coarsest level, instead of per pixel.

• 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 Z-Bufferrejects a whole region against a depth pyramid
• specializesis a specific case of Occlusion Cullingthe occluders are whatever the depth buffer already holds

References

• Hierarchical Z-Buffer Visibility — Greene, Kass, Miller — 1993 · link