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API > API/Plugins > API/Plugins/Niagara > API/Plugins/Niagara/FVersionedNiagaraEmitterData
Syntax
UPROPERTY&40;EditAnywhere, BlueprintReadWrite, Category&61;"Emitter"&41;
uint32 bRequiresPersistentIDs: 1
Remarks
Creates a stable Identifier (Particles.ID) which does not vary from frame to frame. This comes at a small memory and performance cost. This allows external objects to track the same particle over multiple frames. Particle arrays are tightly packed and a particle's actual index in the array may change from frame to frame. This optionally lets you use a lookup table to track a particle by index in the lookup table.