JDK-8321171 : Resizing of Ensemble8 window is not smooth in Metal
  • Type: Bug
  • Component: javafx
  • Sub-Component: graphics
  • Affected Version: internal
  • Priority: P4
  • Status: Closed
  • Resolution: Duplicate
  • OS: os_x
  • CPU: generic
  • Submitted: 2023-12-01
  • Updated: 2025-03-05
  • Resolved: 2025-03-05
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internalResolved
Related Reports
Duplicate :  
JDK-8325379 - Refactor Glass classes to support both GL and Metal
Description
If we launch Ensemble8 app in Metal pipeline and try to resize the window it is very jittery compared to OpenGL. This is captured as part of our Monthly dev testing for metal.

I suspected 2 latest changes that are pushed for Metal pipeline : https://bugs.openjdk.org/browse/JDK-8321100 or https://bugs.openjdk.org/browse/JDK-8311776. But even after reverting these 2 changes i am seeing that resizing is jittery.
Comments
[~aghaisas] Resizing is smoother and comparable to ES2 in Ensemble8 after JDK-8325379. If there is no issue, we can close it as duplicate.
05-03-2025
This could be due to the usage of UploadingPainter to provide rendered buffer to Glass. We need to check this after implementing PresentingPainter code path.
06-12-2023