Missing event to notify of changes in recommended view image size

[Ralith]

This is needed to allow applications to respond to changes in runtime configuration (e.g. SteamVR's application supersampling slider) without restarting or polling xrEnumerateViewConfigurationViews every frame. Applications should be encouraged to respond to such configuration changes dynamically so users can judge the visual impact of settings changes.

CC @rpavlik

[rpavlik]

Thanks for filing this! I've opened a corresponding issue (number 1150) within the working group.

My initial impression is that in the present spec, recommended view size is constant for the lifetime of the instance+system. I suspect this might be addressable via an extension.

[rpavlik]

This is being tracked in Khronos GitLab as issue 619.

[rpavlik-bot]

An issue (number 619) has been filed to correspond to this issue in the internal Khronos GitLab.

If you have a Khronos account, you can access that issue at KHR:openxr/openxr#619.

[Slin]

I also miss a way to be informed about the recommended resolution changing (and a way to actually get that new resolution).

In most SteamVR games it is currently possible to change the resolution in steamvr and see the result immediately in the game. This is a much nicer user experience compared to having to restart the game to try a different resolution.