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Under Consideration for 2021.3.X, 2022.3.X, 6000.0.X, 6000.1.X, 6000.2.X

Votes

1

Found in

2021.3.46f1

2022.3.54f1

6000.0.31f1

6000.1.0a8

6000.2.0a1

Issue ID

UUM-90458

Regression

No

Additive Scene is not being rendered when Render Graph Compatibility Mode is turned off in the Project Settings

-

How to reproduce:
1. Open the attached “IN-89821.zip” project
2. Open the “A” Scene
3. Enter Play Mode and observe the Game View
4. Exit Play Mode
5. Turn off the Render Graph “Compatibility Mode” setting (Edit → Project Settings → Graphics → Render Graph section)
6. Enter Play Mode and Observe the Game View

Expected result: The Camera is rendering the Additive Scene “B” both in the Camera Preview and Game View
Actual result: The Additive Scene “B” is not being rendered

Reproducible with: 2021.3.46f1, 2022.3.54f1, 6000.0.31f1, 6000.1.0a8

Reproducible on: macOS 15.1.1 (Intel), Windows 11

Note: Issue is also reproducible in Standalone and Android builds

  1. Resolution Note:

    The repro project uses two base cameras, one in each additive scene. One base camera has set it's background to uninitialized. With Compatibility Mode enabled, the unitialized background of this camera happens to be what the first camera drew previously, which is why both camera's output is visible. This is incidental behavior, that should not be relied upon. "Uninitialized" means the frame buffer can contain anything. When trying to render two cameras on top of each other, setting the top camera to "Uninitialized" is not the correct approach. Instead, camera stacking should be used, and the top camera should be configured as an overlay camera. Please refer to https://docs.unity3d.com/6000.0/Documentation/Manual/urp/cameras/camera-stacking-concepts.html for more information

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