World Space: The Effector Location's absolute position will be calculated using world space. Component Space: The Effector Location's set position will be calculated in the Skeletal Mesh component's reference frame. Parent Bone Space: The Effector Location's set position will be calculated in the parent bone space of the bone set as the Effector Target. Bone Space: The Effector Location's set position will be calculated in the reference frame of the bone set as the Effector Target.