How to display view from more than one camera in a Unity game scene (ie: split screen, minimap, TV, etc). You basically need the camera / render texture / and UI Raw Image. The camera renders to the render texture instead of the display. the render texture is set as the target of a UI raw image. THen you can place the UI raw image anywhere and anysize on the UI display
You Tube: https://youtu.be/4A-ptevH6-w