Unreal Engine 4 Documentation > Unreal Engine API Reference > Runtime > Core > Math > TOctree2 > TOctree2::FindNodesWithPredicate

TOctree2::FindNodesWithPredicate

This function will traverse the Octree starting from the root in depth first order and the predicate can be used to implement custom culling for each node.

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References

Module	Core
Header	/Engine/Source/Runtime/Core/Public/Math/GenericOctree.h
Include	#include "Math/GenericOctree.h"

Syntax

template<typename PredicateFunc, typename IterateFunc>
void FindNodesWithPredicate
(
const PredicateFunc & Predicate,
const IterateFunc & Func
) const

Remarks

This function will traverse the Octree starting from the root in depth first order and the predicate can be used to implement custom culling for each node.

Parameters

Parameter	Description
Predicate	a Function when given the bounds of the currently traversed node that returns true if traversal should continue or false to skip that branch.
Func	Function that will receive the node ID which can be stored and later used to get the elements using GetElementsForNode for all nodes that passed the predicate.

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