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Unreal Engine C++ API Reference > Runtime > Engine > Particles > Spawn > UParticleModuleSpawnPerUnit
Syntax
float MaxFrameDistance
Remarks
The maximum valid movement for a single frame. If 0.0, then the check is not performed. Currently, if the distance moved between frames is greater than this then NO particles will be spawned. This is primiarily intended to cover cases where the PSystem is attached to teleporting objects.