空间映射在设备上不起作用

Question

I added the spatial mapping prefab and spatial understanding prefab to a scene. On top of this scene, I load another scene in the additive mode. To test this out in unity, i added a room mesh in Unity and everything works fine. However, when I deploy this project to the device, the spatial mapping component is not active at all. I am displaying the stats for the meshes observed ( SpatialUnderstanding.Instance.UnderstandingDLL.GetStaticPlayspaceStats() ) and the total scanned area just remains at zero.

As an additional check, I ticked the Draw Visual Meshes box for the Spatial Mapping Manager and no meshes are being drawn in the scene. I have double checked that the spatial perception capability is present in the App manifest.

Added some logs to confirm that a call to SpatialUnderstandingDll.Imports.GeneratePlayspace_InitScan is being made but not sure what is going wrong after that. Any ideas on what could be going wrong?

Answer 1

Check the debug window, you may have an exception thrown and discarding the initialization of the spatial mapping.

I actually had a similar case where it would work in editor and Debug/Release build but Master would fail to get input and mapping. Looking at the console, it would show that input gets exited on start with some 0xSomeValue. It would not crash the application, simply those functionalities would not run.

Issue was the .rsp files in the Assets folder. While updating the Holotoolkit, they would be new ones added with new names. mcs, gmcs,...It seems the build process was grabing the wrong one or got confused while seeing many of those. I removed the older ones and only keep the mcs.rsp and it goes fine for me now.

Those files only contains the line -unsafe which is used for multithreading processes. Input and spatial mapping are both requiring that files for the multithread.

Maybe, just maybe, you got the same issue.