Cocos Creator 3.8.4 Help

Cocos Creator
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Two bugs were found on iOS in Cocos Creator 3.8.4.

  1. I found an increase in memory when changing scenes, but I can’t find a solution. ‘sys.garbageCollect’ was executed before and after changing the scene. I set up a custom render pipeline to use GaussianBlur in my project.

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    331092×631 58 KB

  2. Custom shader alpha issue

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    11234×739 56.2 KB

    NewProject.zip (90.8 KB)

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Hi @MacLee, thanks for reporting the issues.
Could you confirm that the issue of memory leak is caused by the custom render pipeline?

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Project setting

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332792×960 108 KB

xcode (Version 16.1 (16B40)) iPhone se3 (iOS:18.1)

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221253×656 41.7 KB

noCustomRenderPipeline.zip (78.4 KB)

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  1. Custom shader alpha issue ( iOS Metal ) Solved.
    graphics - Metal blending alpha under 0.5 - Stack Overflow
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    Any other exact solution?
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  1. Memory leak. We have confirmed that it’s a bug in custom render pipeline. We will try to fix it in v3.8.5 which will be released before the end of December.
  2. Alpha issue. The change seems ok.

I will create two issues for this thread.

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Thanks feedback.

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We suggest using Builtin pipeline in 3.8.4 and later.
In 3.8.5, Builtin pipeline will support PipelinePass component, which can be used to add custom pipeline pass. refactored builtin-pipeline by star-e · Pull Request #17860 · cocos/cocos-engine · GitHub

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image1616×810 112 KB

Example is in GitHub - cocos/cocos-example-custom-pipeline (branch v3.8.5)

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Thank You.