[Game Development][Unity] Out of package real machine running blurry screen (solved)

Huaping real machine screen capture

reason

The reason is that the first scene when starting the project does not have a camera in Skybox or SolidColor mode. My startup scene has only one UI camera, and Clear Flags is DepthOnly

explain:

https://blog.csdn.net/yanchezuo/article/details/79002318