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Disabling msaa_writeback breaks multi-camera UI #14388

@paul-hansen

Description

@paul-hansen

Bevy version

0.14

Relevant system information

cargo 1.79.0 (ffa9cf99a 2024-06-03)
rustc 1.79.0 (129f3b996 2024-06-10)
Arch Linux (EndeavorOS), KDE, (tested both Wayland and X11)
Firefox 127.0.2 & Chrome 126.0.6478.126
Nvidia 3080 Driver version 555.58.02

AdapterInfo { name: "NVIDIA GeForce GTX 980, or similar", vendor: 4318, device: 0, device_type: Other, driver: "WebGL", driver_info: "2.0", backend: Gl }

What you did

I disabled msaa_writeback on my splitscreen game.

What went wrong

  • what were you expecting?
    I was expecting it to stop writing the effects of msaa over top of other cameras.
  • what actually happened?
    The UI stopped working on all but one camera.

Additional information

You can replicate this easily by adding msaa_writeback: false to the Camera component on the offical split_screen.rs example.

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