Editor screenshot doesn't display embedded game view on macOS

[Meorge]

Tested versions

Reproducible in v4.5.dev.custom_build [99f5a3d]

System information

Godot v4.5.dev (99f5a3d) - macOS Sequoia (15.5.0) - Multi-window, 2 monitors - OpenGL 3 (Compatibility) - Apple M4 Pro - Apple M4 Pro (14 threads)

Issue description

The Godot editor's Editor menu has a "Take Screenshot" option. This captures a screenshot of the editor window, but when it is in Game mode with a scene running embedded, the game itself does not show up in the screenshot:

Taking a screenshot with other tools, the game is visible:

Steps to reproduce

Play a scene and go to Editor > Take Screenshot in the menu bar to take a screenshot while the game window is embedded. The resulting image will show the editor but not the game contents itself.

Minimal reproduction project (MRP)

N/A

[bruvzg]

Most likely not macOS specific, embedded game window is a separate window (on Windows/X11) or separate view (on macOS), so editor renderer (which is used to take screenshot) can't directly access it.

[Meorge]

That makes sense to me; as I was writing this up, it occurred to me that with the trickery required to make the embedded window work, screenshotting might be difficult or outright incompatible.

Perhaps there'd be a way to hack around it - grab the window/view's texture, then paste it onto the texture outputted from the editor renderer, and make that the final editor screenshot?

[axel37]

Most likely not macOS specific

Can confirm that this occurs in Godot v4.4.1.stable - Windows 11 (build 22631)