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2.3.0.0 64 bit, ALT+Tab / Loss of focus causes black scene
#3
I duplicated the issue on my only Windows (10) bare metal machine. It does not happen in a VM. And it works fine on Linux.

OpenGL in Windows 10 and OSX 12 is not letting you switch windows.

A workaround is to use a borderless window. On Windows, this works only with DirectX9. You must set it using the external settings editor.

I suspect the Ogre14 library upgrades funded in Milestone #3 have caused issues with their Windows window creation. The maintainers of Ogre depreciated in favor of using other libraries some years ago. Bounty #96 addresses it on Windows. I will take a look next time I get around to bulk bug fixes to see if I can get it working. I can't guarantee full screen on Windows with the upgraded engine libraries short of that bounty.

The OpenGL3, DirectX11, Vulkan, or software rendering bounties may also resolve the issue for those respective renderers.

(For Mac, it should be working, as we're using GLFW. I suspect the same reason OpenGL Alt-tab is not working in Windows is the same as Mac. So, I may be able to resolve that one.)
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RE: 2.3.0.0 64 bit, ALT+Tab / Loss of focus causes black scene - by Eric.B - 02-11-2024, 01:18 AM

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