# XRMeshSubsystemExtension

Extensions to AR Foundation's `XRMeshSubsystem` class.

## Summary

| ### Public static functions ||
|---|---|
| `https://developer.android.com/develop/xr/unity/reference/class/Google/XR/Extensions/XRMeshSubsystemExtension#getmeshsemantics(this XRMeshSubsystem subsystem, MeshId meshId)` | `https://developer.android.com/develop/xr/unity/reference/namespace/Google/XR/Extensions#xrmeshsemantics[]` Gets the vertex semantics of the given mesh id. |
| `https://developer.android.com/develop/xr/unity/reference/class/Google/XR/Extensions/XRMeshSubsystemExtension#getscenemeshtrackingstate(this XRMeshSubsystem subsystem)` | `https://developer.android.com/develop/xr/unity/reference/namespace/Google/XR/Extensions#xrscenemeshtrackingstate` Get the current tracking state of the scene meshing. |
| `https://developer.android.com/develop/xr/unity/reference/class/Google/XR/Extensions/XRMeshSubsystemExtension#isscenemeshid(this XRMeshSubsystem subsystem, MeshId meshId)` | `bool` Checks if the given mesh id is a scene mesh id. |
| `https://developer.android.com/develop/xr/unity/reference/class/Google/XR/Extensions/XRMeshSubsystemExtension#isscenemeshid(this XRMeshSubsystem subsystem, TrackableId trackableId)` | `bool` Checks if the given trackable id is a scene mesh id. |

## Public static functions

### GetMeshSemantics

```c#
XRMeshSemantics[] GetMeshSemantics(
  this XRMeshSubsystem subsystem,
  MeshId meshId
)
```
Gets the vertex semantics of the given mesh id.


Details Parameters `subsystem` The XRMeshSubsystem to use. `meshId` The mesh id to get the vertex semantics of. **Returns** The vertex semantics of the mesh id as an array of `XRMeshSemantics`enums. If the mesh id is invalid or if the semantics could not be retrieved, the function will return null.

### GetSceneMeshTrackingState

```c#
XRSceneMeshTrackingState GetSceneMeshTrackingState(
  this XRMeshSubsystem subsystem
)
```
Get the current tracking state of the scene meshing.


Details Parameters `subsystem` The XRMeshSubsystem to use. **Returns** The scene mesh tracking state as a `XRSceneMeshTrackingState`enums.

### IsSceneMeshId

```c#
bool IsSceneMeshId(
  this XRMeshSubsystem subsystem,
  MeshId meshId
)
```
Checks if the given mesh id is a scene mesh id.


Details Parameters `subsystem` The XRMeshSubsystem to use. `meshId` The mesh id to check. **Returns** True if the mesh id is a scene mesh id, false otherwise.

### IsSceneMeshId

```c#
bool IsSceneMeshId(
  this XRMeshSubsystem subsystem,
  TrackableId trackableId
)
```
Checks if the given trackable id is a scene mesh id.


Details Parameters `subsystem` The XRMeshSubsystem to use. `trackableId` The trackable id to check. **Returns** True if the trackable id is a scene mesh id, false otherwise.