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Postponed means that the issue was either a feature request or something that requires major refactoring on our side. Since that makes the issue not actionable in the close future we choose to close it as Postponed and add it on our internal roadmaps and technical debt pages instead.

Postponed

Votes

1

Found in

2018.2.2f1

Issue ID

1069436

Regression

No

LoadSceneAsync gets a huge CPU spike when using Realtime GI

Progressive Lightmapper

-

To reproduce:

1. Download attached project "RealtimeGILoadingCost.zip" and open in Unity
2. Create New Scene
3. Add both Root and A scenes in the Hierarchy
4. Open Lighting window, uncheck Mixed Lighting, clear Baked Aata and regenerate Lighting
5. Remove A scene from Hierarchy
6. Build and Run Development build and Autoconnect Profiler
7. Press L key on Keyboard and observe Profiler

Expected Result: There will be no CPU spike in Profiler
Actual Result: There will be a huge CPU spike in Profiler

Notes:
- This issue appears on both Windows and OSX

Reproduced on Unity 2017.1.5f1, 2017.2.3p3, 2017.3.2f1, 2017.4.9f1, 2018.1.9f1, 2018.2.3f1 and 2018.3.0a9

Comments (2)

  1. sayginkarahan

    Dec 11, 2020 00:17

    I'm using 2019.4.13f1 and it is still FPS drops when loading scenes async in Editor. It is very small spikes when the game in the build version.

  2. ptbs

    Jun 04, 2019 13:44

    This issue is still occurring on 2019.1.5f1, loading a scene that only contains a cylinder incurs a 50ms frametime (tested on PC Standalone on i7-7700K 4.2GHz, GTX 1060)

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