Please watch this video before purchasing：
OpenXR_UI Project Prerequisites Description
Demo（演示项目） :
Playable Demo 打包Demo百度云
Video（演示视频）:
YouTube Trailer
Documentation（文档）：
Documentation_PDF
Gemini Document Tool
Tutorials（教程）：
Only Available in Chinese for Now
Bilibili Chinese Tutorial Video
Overview
This is a VR 3D UI collision interaction solution based on Unreal Engine 5 + OpenXR.
The core goal is to ensure hand interaction with 3D UI without penetration, while supporting both controller and hand gesture input.
The system is implemented in a component-based architecture, allowing quick configuration and easy reuse across different projects.
Main features include:
3D UI widget interaction with collision blocking
UI displayed when looking at the palm
Pressable 3D UI buttons
Replaceable hand gesture models
Supports UE5.3 – UE5.7
Tested platforms: Quest / Pico / Windows / Android
Detailed FeaturesHand and 3D UI Collision Interaction
Collision blocking between hands and 3D UI panels
Click triggered when the index finger touches the UI
Supports instant feedback during UI press
Two-Hand UI Interaction
Supports simultaneous UI interaction with both hands
UI Scrolling and Interaction Direction Control
Supports ScrollBox interaction
UI can be restricted to respond only from the front side, preventing back-side interaction
UI Snapping and Interaction Distance
Customizable UI edge snapping distance
Hand Gesture Model System
Hand gesture models are replaceable
Default supported models:
UE5 VR Template Hands
Quest hand gesture models
Pico hand gesture models
Supports replacement with third-party hand models
Use Cases
UI panels and screen-based UI in VR scenes
Close-range 3D UI finger touch interaction
Notes
This project is implemented entirely with Blueprint logic and can be used without relying on example scenes.
Due to changes in Unreal Engine VR template versions, some template content and nodes have been deprecated.
If issues occur in newer versions, the documentation provides detailed instructions on how to fix or reconfigure the character.
Third-party hand models shown in preview images or videos are not included in the project.
Preview content is for demonstrating system compatibility only.
When replacing hand gesture models, the skeleton should be as close as possible to the OpenXR hand skeleton structure.
The Quest 3 color passthrough effect shown in promotional images is for demonstration only
This effect is not included in the project.
The project is based on OpenXR.
On Windows, MetaXR / PICO OpenXR SDK is not required.
When packaging for Android standalone devices:
UE5.6 and earlier versions require enabling the MetaXR / PICO OpenXR SDK plugins
UE5.6 and later versions (Quest) do not require MetaXR, and no issues have been observed so far