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Hovering on Scene View when Lighting Type is changed to Area or Point makes the Lighting appear Darker/Brighter



How to reproduce:
1. Open the Attached "" Project
2. Open the "Outdoors" Scene (Assets -> "Outdoors")
3. Click on the Sun GameObject in the Hierarchy
4. Under General Tab Change the Lighting Type to Area or Point
5. After Changing the Lighting Type hover over Scene View
6. Observe the Lighting change

Expected result: The Lighting behaves the same way as before hovering
Actual result: Lighting becomes a bit darker or brighter

Reproducible with: 2023.2.20f1

Reproduced on: macOS Sonoma 14.4.1

  1. Resolution Note:

    The change in brightness is related to the exposure mode of the scene. The auto-exposure modes (including histogram-based exposure) work over multiple frames to adapt the exposure.

    When the user changes the light type, the histogram of the frame changes, so in the next rendered frame the exposure will be adapted. Hovering the mouse on scene view just forces a redraw, and then you see the brightness change.

    For this scenario, when auto-exposure is used, it's better to enable the "always refresh" option in the scene view. In this case you will see the brightness adapt as soon as you change the light type.

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