[TArray](API\Runtime\Core\Containers\TArray)< [Chaos::FVec3](API\Runtime\ChaosCore\Chaos\FVec3) > * BuildSamplePoints ( const [Chaos::FReal](API\Runtime\ChaosCore\Chaos\FReal) ParticlesPerUnitArea, const int32 MinParticles, const int32 MaxParticles )