# TryGetSceneSegmentationChannel

Source: https://www.nianticspatial.com/docs/api/unity/NianticSpatial.NSDK.AR.XRSubsystems.XRSceneSegmentationSubsystem.Provider.TryGetSceneSegmentationChannel/

TryGetSceneSegmentationChannel
Get the XRTextureDescriptor for the specified semantic channel.

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## Declaration

public virtual bool TryGetSceneSegmentationChannel(SceneSegmentationChannel channel, out XRTextureDescriptor sceneSegmentationChannelDescriptor, out Matrix4x4 samplerMatrix, Nullable<XRCameraParams> cameraParams = null)

#### Summary

Get the XRTextureDescriptor for the specified semantic channel.

#### Returns

true if the semantic channel texture descriptor is available and is returned. Otherwise,
    false.

#### Throws

NotSupportedException -- Thrown if the implementation does not support semantics channel     texture.

### Parameters

| Name | Type | Summary |
| --- | --- | --- |
| channel | SceneSegmentationChannel | The semantics channel to acquire. |
| sceneSegmentationChannelDescriptor | XRTextureDescriptor | The resulting semantic channel texture descriptor, if available. |
| samplerMatrix | Matrix4x4 | The matrix that transforms from normalized viewport coordinates to normalized texture coordinates. |
| cameraParams | Nullable<XRCameraParams> | Describes the viewport the texture is to be displayed on. |

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