Table 2. Comparison of the features provided by the Oculus Quest 2 based virtual environment of Unity engine and Unreal engine 4.

	Unity engine (2021.3)	Unreal engine 4
Establishment of development environment	Import Oculus Integration from asset store	Add Oculus VR plugin from project settings
Player controller	OVRPlayerController	VRPawn
Controller input	OVRInput or Input Manager	Input binding
Joint information of the virtual hand	Included	Handsample required
Physical inertia application method	Implement it yourself or use the provided script component	set in the virtual environment itself