1. Supports switching between glove mode and VR controller mode

2. Supports simultaneous connection for 4 or more users, with one user able to view in PC mode

3. PC mode includes a calibration marker function, allowing markers to be placed on the vehicle body

4. Glove mode includes a measurement function, enabling length measurement by pulling out spacing with fingers, and saving it in the scene

5. Gloves can interact with the following car items:

l Door open/close

l Rearview mirror adjustment

l Gear lever control

l Steering wheel control

l Turn lights on/off

l Trunk open/close

6. Vehicle appearance settings can be replaced by grabbing material balls with gloves

Appearance settings include:

l Car paint color

l Wheel rim style

l Headlight style

l Interior style

l Seat style

7. For 4 or more users connected over the internet, latency must not exceed 100ms, and verification can be displayed via the interface

8. Output executable files support FBX and OBJ formats and include texture loading

9. Includes recording and saving vehicle appearance setting sets, which can be reloaded after the program is closed

10. Provides complete source code and files, and can achieve functions identical to the executable in the Unreal engine

11. All the above interactive items can be synchronized across 4 connected users, with one user in PC mode synchronizing changes with all clients

12. All the above interactive items must comply with the technical specification table

13. All the above interactive items must support real-time synchronization in multiplayer connections

14. All the above interactive items must run correctly on the Runtime executable end

15. All the above interactive items must support replaceable car models in FBX or OBJ format and continue all interactive experiences and connections after replacement