Some methods throw an InvalidOperationException

[demonixis]

Some methods throw an InvalidOperationException, by example if you call RenderManager::GetRenderInfo, it happens, the message is osvrRenderManagerGetRenderInfoCollection call failed.

It's the same problem with GetViewerEyeSurfaceRadialDistortion or other methods of DisplayConfig. I checked the signature and it maches with the C API. So what is the problem?

[DuFF14]

GetViewerEyeSurfaceRadialDistortion fails if radial distortion coefficients are not available in the display descriptor (probably means that HMD requires a more complex undistortion). Here is an example display descriptor which uses radial distortion: https://github.com/OSVR/OSVR-Core/blob/master/apps/displays/Sensics_zSight_1280_1024_1input.json#L29

Can you share the example code where osvrRenderManagerGetRenderInfoCollection fails? Make sure RM has been created and the display opened successfully before getting render info. Also check that the PInvoke signature is correct.

[demonixis]

Sure, you can check my code here, It's a MonoGame application.

[DuFF14]

Do those other calls before getrenderinfo succeed or fail? There isn't any error checking to see if RM was created and display opened successfully. For example: https://github.com/sensics/OSVR-RenderManager/blob/master/examples/RenderManagerOpenGLPresentExample.cpp#L213

Not sure of the status of OpenGL C++ API. You might want to try the C API which uses RenderInfoCollection instead of RenderInfo: https://github.com/sensics/OSVR-RenderManager/blob/master/examples/RenderManagerD3DCAPIExample.cpp#L218

[demonixis]

The method GetRenderInfo can't be called ;) If I can call it, I have RenderManager support into my game engine.