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Won't Fix

Votes

0

Found in

2021.3.46f1

Issue ID

UUM-87072

Regression

No

[macOS] "The progressive CPU lightmapper is not supported on Apple silicon, switching to the Progressive GPU lightmapper." warning is thrown after creating a project in macOS Silicon


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*Steps to reproduce:*
1. Create a new project
2. Observe the Console

*Actual results:* "The progressive CPU lightmapper is not supported on Apple silicon, switching to the Progressive GPU lightmapper." warning is thrown
*Expected results:* No errors or warnings are thrown

*Reproducible with versions:* 2021.3.46f1
*Not reproducible with versions:* 2022.3.1f1, 2022.3.52f1, 6000.0.27f1
*Can't test with versions:* 2022.3.0f1 (No option to install Silicon Editor), 6000.1.0a4 (No existing templates that this issue is reproducible with)
*Fixed in version:* 2022.2.21f1

*Tested on (OS):* macOS Sonoma 14.6 (M1)

{*}Notes:{*}{*}{{*}}
* Issue is reproducible with 3D Sample Scene, AR, Runner Game, Third Person, First Person, FPS Microgame, LEGO Microgame, Karting Microgame, Test Track and Cinematic Studio templates
* Full warning:
"The progressive CPU lightmapper is not supported on Apple silicon, switching to the Progressive GPU lightmapper.
UnityEditor.SceneManagement.EditorSceneManager:OpenScene (string)
Unity.Tutorials.Core.Editor.UserStartupCode:RunStartupCode (Unity.Tutorials.Core.Editor.TutorialProjectSettings) (at Library/PackageCache/com.unity.learn.let-framework@3.1.1/Editor/Core/UserStartupCode.cs:63)
Unity.Tutorials.Core.Editor.UserStartupCode:InitRunStartupCode () (at Library/PackageCache/com.unity.learn.let-framework@3.1.1/Editor/Core/UserStartupCode.cs:116)
UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()"
* Warning is also thrown after building and running the project

  1. Resolution Note:

    This issue is caused due to various project templates using the CPU Lightmapper as the default backend. The CPU Lightmapper isn't supported on Apple Silicon, hence the fallback. It's unlikely that we will change the project templates for an LTS, both because it can be a breaking change, and because the GPU Lightmapper isn't considered production ready on these older LTS versions. Given that this only affects Apple Silicon on old LTS versions, we are opting for Won't-Fix.

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