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cs9tmf

BVH

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a bvh is simply, a tree.
like (not the same) a oct-tree or bsp-tree.

a parent has some children.
a child has a parent.

you can use it for culling or collision detection.
a simple rule : if the parent is eg. not visible, then
the children are also not visible, hence no need to process them further.

i''m sure you find some more information about "trees" on google.

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