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  1. Qt
  2. QTBUG-65085

FBOs never released

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    Details

    • Type: Bug
    • Status: Reported
    • Priority: P2: Important
    • Resolution: Unresolved
    • Affects Version/s: 5.9, 5.10, 5.11
    • Fix Version/s: None
    • Component/s: Qt3D
    • Labels:
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      Description

      While looking into QTBUG-65080 I came across another strange thing: FBOs are never actually released, it seems. Any QRenderTarget in a QRenderTargetSelector will lead to creating a new FBO that is then alive for ever.

      The expectation is (IMHO) that destroying a QRenderTarget leads to destroying the FBO (or at least making it free for reuse) internally.

      If the issue in QTBUG-65080 gets fixed, the situation will become more acute since one may then need QRenderTargets (and thus FBOs) just to be able to do a BlitFramebuffer. Now, while one may attempt to work this around by reusing QRenderTargets, but that can get problematic atm due to QTBUG-64757 since one cannot change the texture in a QRenderTargetOutput once set...

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              Assignee:
              seanharmer Sean Harmer
              Reporter:
              lagocs Laszlo Agocs
              Votes:
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                Dates

                Created:
                Updated:

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