Class VirtualCameraDevice

A device used to control a virtual camera.

Inheritance
Object
Object
Component
Behaviour
MonoBehaviour
LiveCaptureDevice
Unity.LiveCapture.CompanionApp.CompanionAppDevice<IVirtualCameraClient>
VirtualCameraDevice
Inherited Members
LiveCaptureDevice.GetTakeRecorder()
LiveCaptureDevice.OnDestroy()
LiveCaptureDevice.IsRecording()
LiveCaptureDevice.StartRecording()
LiveCaptureDevice.StopRecording()
UnityEngine.Object.FindObjectsOfType<T>(System.Boolean)
UnityEngine.Object.FindObjectOfType<T>(System.Boolean)
Namespace: Unity.LiveCapture.VirtualCamera
Syntax
[AddComponentMenu("")]
[RequireComponent(typeof(FocusPlaneRenderer))]
[CreateDeviceMenuItem("Virtual Camera Device", 0)]
[HelpURL("https://docs.unity3d.com/Packages/com.unity.live-capture@3.0/manual/ref-component-virtual-camera-device.html")]
[DisallowMultipleComponent]
public class VirtualCameraDevice : CompanionAppDevice<IVirtualCameraClient>, ICompanionAppDevice, ITimedDataSource, IRegistrable
Remarks

The virtual camera mimics the experience of using a real camera in a Unity scene. The connected client can control most of the state, such as the camera pose and lens settings, but other features like autofocus need to be computed in the editor as it needs to query the scene. The render from the virtual camera in the editor can be streamed to the client to give visual feedback of the camera state, similar to a camera viewfinder. A VirtualCameraActor and a IVirtualCameraClient must be assigned before the device is useful. The actor is needed to store live or evaluated playback state and affect the scene.

Properties

Actor

Gets the VirtualCameraActor currently assigned to this device.

Declaration
public VirtualCameraActor Actor { get; set; }
Property Value
Type Description
VirtualCameraActor

The assigned actor, or null if none is assigned.

BufferSize

Gets or sets the current buffer size.

Declaration
public int BufferSize { get; set; }
Property Value
Type Description
Int32
Implements

CameraBody

The CameraBody of the current device.

Declaration
public CameraBody CameraBody { get; }
Property Value
Type Description
CameraBody

FrameRate

The number of data samples per second.

Declaration
public FrameRate FrameRate { get; }
Property Value
Type Description
FrameRate
Implements

Id

Get the unique identifier for this instance.

Declaration
public string Id { get; }
Property Value
Type Description
String
Implements
Remarks

The ID should not be null or empty, and is expected to remain constant for the life of the instance.

IsSynchronized

Signal to the data source whether it is being synchronized via PresentAt(Timecode, FrameRate).

Declaration
public bool IsSynchronized { get; set; }
Property Value
Type Description
Boolean
Implements
Remarks

When true, the data source should disable its own update mechanism.

Lens

The Lens of the current device.

Declaration
public Lens Lens { get; set; }
Property Value
Type Description
Lens

LensAsset

The LensAsset of the current device.

Declaration
public LensAsset LensAsset { get; set; }
Property Value
Type Description
LensAsset

LensIntrinsics

The LensIntrinsics of the current device.

Declaration
public LensIntrinsics LensIntrinsics { get; }
Property Value
Type Description
LensIntrinsics

MaxBufferSize

Get the maximum size of the sample buffer, if limited.

Declaration
public int? MaxBufferSize { get; }
Property Value
Type Description
Nullable<Int32>
Implements

MinBufferSize

Get the minimum size of the sample buffer, if limited.

Declaration
public int? MinBufferSize { get; }
Property Value
Type Description
Nullable<Int32>
Implements

Origin

The position and rotation of the world's origin.

Declaration
public Pose Origin { get; }
Property Value
Type Description
Pose

Pose

The position and rotation of the current device in world coordinates.

Declaration
public Pose Pose { get; }
Property Value
Type Description
Pose

PresentationOffset

The offset in frames applied when invoking PresentAt(Timecode, FrameRate).

Declaration
public FrameTime PresentationOffset { get; set; }
Property Value
Type Description
FrameTime
Implements
Remarks

The frame duration corresponds to the FrameRate of this source.

Set this to non-zero if the captured data's timecodes are "off" from the true values. For example, if you determined that the samples and timecodes as mismatched such that each sample lags its timecode by 2 frames, you would set this property to new FrameTime(2).

Synchronizer

Gets or sets the ISynchronizer controlling this source.

Declaration
public ISynchronizer Synchronizer { get; set; }
Property Value
Type Description
ISynchronizer
Implements
Remarks

In most cases you can simply implement this as an auto-property. The default synchronizer implementation automatically assigns this property when you call AddDataSource(ITimedDataSource).

Methods

GetAssetName()

Gets the name used for the take asset name.

Declaration
protected override string GetAssetName()
Returns
Type Description
String

The name of the asset.
Overrides
Unity.LiveCapture.CompanionApp.CompanionAppDevice<Unity.LiveCapture.VirtualCamera.IVirtualCameraClient>.GetAssetName()

IsReady()

Indicates whether a device is ready for recording.

Declaration
public override bool IsReady()
Returns
Type Description
Boolean

true if ready for recording; otherwise, false.
Overrides
Unity.LiveCapture.CompanionApp.CompanionAppDevice<Unity.LiveCapture.VirtualCamera.IVirtualCameraClient>.IsReady()

LiveUpdate()

Override this method to update the device during live mode.

Declaration
public override void LiveUpdate()
Overrides
Remarks

This method is called after the animation system execution and before the script's LateUpdate.

OnClientAssigned()

The device calls this method when a new client is assigned.

Declaration
protected override void OnClientAssigned()
Overrides
Unity.LiveCapture.CompanionApp.CompanionAppDevice<Unity.LiveCapture.VirtualCamera.IVirtualCameraClient>.OnClientAssigned()

OnClientUnassigned()

The device calls this method when the client is unassigned.

Declaration
protected override void OnClientUnassigned()
Overrides
Unity.LiveCapture.CompanionApp.CompanionAppDevice<Unity.LiveCapture.VirtualCamera.IVirtualCameraClient>.OnClientUnassigned()

OnDisable()

This function is called when the behaviour becomes disabled.

Declaration
protected override void OnDisable()
Overrides
Unity.LiveCapture.CompanionApp.CompanionAppDevice<Unity.LiveCapture.VirtualCamera.IVirtualCameraClient>.OnDisable()

OnEnable()

This function is called when the object becomes enabled and active.

Declaration
protected override void OnEnable()
Overrides
Unity.LiveCapture.CompanionApp.CompanionAppDevice<Unity.LiveCapture.VirtualCamera.IVirtualCameraClient>.OnEnable()

OnRecordingChanged()

The device calls this method when the recording state has changed.

Declaration
protected override void OnRecordingChanged()
Overrides
Unity.LiveCapture.CompanionApp.CompanionAppDevice<Unity.LiveCapture.VirtualCamera.IVirtualCameraClient>.OnRecordingChanged()

OnRegisterLiveProperties(IPropertyPreviewer)

The device calls this method when a live performance starts and properties are about to change.

Declaration
protected override void OnRegisterLiveProperties(IPropertyPreviewer previewer)
Parameters
Type Name Description
IPropertyPreviewer previewer

The IPropertyPreviewer to use to register live properties.
Overrides
Unity.LiveCapture.CompanionApp.CompanionAppDevice<Unity.LiveCapture.VirtualCamera.IVirtualCameraClient>.OnRegisterLiveProperties(Unity.LiveCapture.IPropertyPreviewer)

OnSlateChanged(ISlate)

The device calls this method when the slate has changed.

Declaration
protected override void OnSlateChanged(ISlate slate)
Parameters
Type Name Description
ISlate slate

The ISlate that changed.
Overrides
Unity.LiveCapture.CompanionApp.CompanionAppDevice<Unity.LiveCapture.VirtualCamera.IVirtualCameraClient>.OnSlateChanged(Unity.LiveCapture.ISlate)

OnValidate()

Declaration
protected virtual void OnValidate()

PresentAt(Timecode, FrameRate)

Set the currently active timecode for presentation.

Declaration
public TimedSampleStatus PresentAt(Timecode timecode, FrameRate frameRate)
Parameters
Type Name Description
Timecode timecode

The timecode that we wish to present
FrameRate frameRate

The underlying framerate of the timecode value
Returns
Type Description
TimedSampleStatus

A status representing the ability of the source to present at the requested timecode.
Implements

TryGetBufferRange(out FrameTime, out FrameTime)

Gets the frame time of the newest and oldest samples buffered by the data source.

Declaration
public bool TryGetBufferRange(out FrameTime oldestSample, out FrameTime newestSample)
Parameters
Type Name Description
FrameTime oldestSample

The frame time of the oldest buffered sample, or langword_csharp_default if there are no buffered samples.
FrameTime newestSample

The frame time of the newest buffered sample, or langword_csharp_default if there are no buffered samples.
Returns
Type Description
Boolean

true if there are any buffered samples; otherwise, false.
Implements
Remarks

> The frame duration corresponds to the FrameRate of this source. The sample times are returned without the PresentationOffset applied.

UpdateClient()

Called to send the device state to the client.

Declaration
public override void UpdateClient()
Overrides
Unity.LiveCapture.CompanionApp.CompanionAppDevice<Unity.LiveCapture.VirtualCamera.IVirtualCameraClient>.UpdateClient()

UpdateDevice()

Updates the internal state of the device.

Declaration
public override void UpdateDevice()
Overrides

Write(ITakeBuilder)

Stores the recording into a take using a ITakeBuilder.

Declaration
public override void Write(ITakeBuilder takeBuilder)
Parameters
Type Name Description
ITakeBuilder takeBuilder

The take builder object.
Overrides

Explicit Interface Implementations

IRegistrable.FriendlyName

Get a human-readable name for the instance.

Declaration
string IRegistrable.FriendlyName { get; }
Returns
Type Description
String
Implements

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