Unity ECS implementation of a typical Culling system supporting Frustrum Culling and Occlusion Culling

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Viewer perspective

Not culled
Culled by Occluders
Out of Frustrum

Debug view

Not culled
Culled by Occluders
Out of Frustrum

Debug view

Not culled
Culled by Occluders
Out of Frustrum

Octree layer 0

Octree layer 1

Octree layer 2

Octree layer 3

Object AABBs

Frustrum AABB

Objects not fitting in any Octree nodes are moved in a particular Root layer for special processing

Object at Root layer

Inputs

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W,A,S,D + Mouse : Basic movements when using the Viewer camera
Mouse Right : Rotate orbital camera around viewer when using the Debug camera
Mouse Scroll : Zoom/Dezoom when using the Debug camera

Space : Switch between Debug/Viewer camera
L : Lock/Unlock camera movements
Alpha1 : Show/Hide stats panel
Alpha2 : Display next Octree layer
Alpha3 : Show/Hide objects at Root Octree layer
Alpha4 : Show/Hide object AABBs
Alpha5 : Show/Hide Frustrum AABB