Steps to reproduce:
- Create a new 3D URP project
- Create a Rendering -> Render Texture in the Project
- Assign the Render Texture to the Main Camera's Output Texture field
- Observe the aspect ratio of the Camera's frustum in the Scene view (is square)
- Change the Render Texture's size to 1920x1080
- Observe the aspect ratio of the Camera's frustum in the Scene view
Actual results: We need to disable and re-enable the camera GameObject to update the gizmo to the correct aspect ratio
Expected results: Updated to a rectangle of aspect ratio 16:9 automatically the next time the camera is selected
Reproducible with versions: 2023.1.0a10, 6000.0.73f1, 6000.3.13f1, 6000.4.3f1, 6000.5.0b5, 6000.6.0a3
Tested on (OS): Windows 11 Pro
Workaround: Disable then re-enable the Main Camera or reassign the Render Texture reference