How to handle D3D device lost?

Questions & Answers
1

I’m using a plugin that allocates some d3d resources (plugin not written by me).

Plugin lets me invalidate these resources before toggling full screen, and re-creating them after the toggle is done. This works fine when I’m in control of the toggle.

There are three scenarios where I run into problems (but the cause is basically the same):

  1. After Alt-Tabbing out of application, the D3D device is lost, and when trying to Alt-Tab in again, Unity cannot reset the device so it hangs.

  2. Unity reacts to Alt-Enter keyboard shortcut by toggling full screen without giving me any notification (that I know of). Since it cannot reset the D3D device, it crashes.

  3. When running in windowed mode, dragging the window also apparently resets the d3d device. Again, a problem and a crash.

Is there a way for me to get notified of these situations by Unity so I can release the resources that are preventing the device from resetting?

We do have OnPreRender(), OnPostRender(), OnApplicationPause() and stuff.

Is there something like OnScreenChange()?

2

Know it’s late but maybe this could help (not working for me)

(Sorry for the wrong link…)