The Ue creates multiple windows to display different camera contents.

In Unity, you can display different camera contents by creating multiple cameras and assigning them to different windows. This technique is called multi-camera rendering.

To achieve this function, you can follow the following steps:

1. First, create multiple camera objects that need to be displayed. You can create empty objects by right-clicking the hierarchy panel of Unity and choosing Create Empty, and then add camera components to these objects.

2. Place these camera objects in appropriate positions in the scene.

3. Set different rendering targets for each camera. Select a render texture object in the Target Texture field of the Inspector panel of each camera object, or leave it blank to use the default screen rendering.

4. Create multiple windows to display the camera contents. You can create an empty object by right-clicking the hierarchy panel of Unity and selecting Create Empty, and then add a Raw image component to it.

5. Select the corresponding rendering texture in the Texture field of the Inspector panel of each window object used to display camera content.

6. Write a script to control the content of the switch window. In this script, you can use the SetActive method to enable or disable the corresponding window object.

For the actual operation details, Unity officially provides some documents and tutorials. You can search Unity Multi-camera Rendering for related resources and sample code.

I hope this can help you!