How do I solve the problem that the touch screen and display screen of the Windows operating system are inconsistent

Posted inVR AR MR, 无, 虚幻引擎, 软件研究

Recently, I encountered a problem: when I use a touchscreen display, the touch function is mapped to my large screen, not the secondary screen, but the touchscreen is actually on the secondary screen. What should I do to solve this problem?

First of all, it should be clear that the misaligned touch screen is not a hardware problem, but a software configuration problem, and Windows offers a perfect solution:

Step 1: Open the control panel

windows的触摸屏和显示屏错位：1.打开控制面板
The Windows touch screen and display screen are misaligned: 1. Open the control panel

[Unreal4] Get virtual camera image in unreal engine and import it into UI(UMG) for UI camera real-time display

Posted inVR AR MR, 无, 虚幻引擎, 软件研究

Objectives: Real-time acquisition of virtual camera lens images in Unreal Engine and display in GUI, similar to left and right rearview mirrors display images in racing games, or real-time acquisition of camera image information display in GUI interface, or real-time capture of camera images in VR.

Test version: 4.26 (universal for most versions)

Knowledge needed:

1. SceneCaptureComponent2D

2. CanvasRender target material (CanvasRenderTarget2D)

3. Image module in UI

Function implementation approach: to obtain a virtual camera image real time display and import the UI, you need a real-time capture images and convert them into dynamic material, real-time images were obtained through the scene capture the component 2d flow, converts the render target material to ordinary material, finally to create the image in the GUI, and give the image for the module material.

【unreal 4】 虚幻引擎中如何让UI(UMG)在窗口实时显示

Posted inVR AR MR, 无, 虚幻引擎, 软件研究
首先创建好UI文件 打开关卡蓝图 添加如上图节点连接：【事件开始运行】（event begainplay）——【创建控件】(create widget)——【添加到视口】(add to viewport) 在创建控件中选择第一步创建好的UI 运行程序 看看UI是不是已经在窗口上显示了。 注意【创建X……