Multiple windows with different refresh rates

[NeatSketch]

Hello,

I have 3 monitors, each with a different refresh rate: 60Hz, 75Hz, & 144Hz.
And I have 3 corresponding windows in my app, each displayed on its corresponding monitor.

Now, I need to render some graphics in each window, with V-Sync ON, every frame of the corresponding monitor.
Clearly, this requires a separate render thread for each window.

I also need to use the same textures, meshes and shaders in the 3 windows.

Is this possible to do with bgfx?
It isn't clear for me after quickly looking through the documentation.

Also, are there any nuances I should know about regarding different backends (Vulkan, Metal, etc.) when dealing with such multithreaded rendering?

[bkaradzic]

You can have v-sync off, and then throttle updates based on your highest-frequency monitor.

Usually people who have multiple monitors buy identical monitors to have refresh rate, colors, brightness, pixel density, etc. all matching. This mismatched monitor case is not worth supporting.

[NeatSketch]

You can have v-sync off, and then throttle updates based on your highest-frequency monitor.

That would lead to screen tearing on at least 2 of the 3 monitors, unacceptable.

Usually people who have multiple monitors buy identical monitors to have refresh rate, colors, brightness, pixel density, etc. all matching.

... which is because of poor/nonexistent support of non-matching monitors in most software, sadly.

That being said, my use case is somewhat special (and I have a reason to have monitors with intentionally different refresh rates), and most users would never need this, so I understand supporting this is hardly beneficial for bgfx.

Thank you for your answer!