Class RigBuilder

RigBuilder is the root component that holds the Rigs that create an Animation Rigging hierarchy. Its purpose is to create the PlayableGraph that will be used in the associated Animator component to animate a character with constraints.

Inheritance
Object
Object
Component
Behaviour
MonoBehaviour
RigBuilder
Inherited Members
UnityEngine.Object.FindObjectsOfType<T>(System.Boolean)
UnityEngine.Object.FindObjectOfType<T>(System.Boolean)
Namespace: UnityEngine.Animations.Rigging
Syntax
[RequireComponent(typeof(Animator))]
[DisallowMultipleComponent]
[ExecuteInEditMode]
[AddComponentMenu("Animation Rigging/Setup/Rig Builder")]
[HelpURL("https://docs.unity3d.com/Packages/com.unity.animation.rigging@1.2/manual/RiggingWorkflow.html#rig-builder-component")]
public class RigBuilder : MonoBehaviour, IAnimationWindowPreview, IRigEffectorHolder

Fields

onAddRigBuilder

Notification callback that is sent whenever a RigBuilder calls OnEnable.

Declaration
public static RigBuilder.OnAddRigBuilderCallback onAddRigBuilder
Field Value
Type Description
RigBuilder.OnAddRigBuilderCallback

onRemoveRigBuilder

Notification callback that is sent whenever a RigBuilder calls OnDisable.

Declaration
public static RigBuilder.OnRemoveRigBuilderCallback onRemoveRigBuilder
Field Value
Type Description
RigBuilder.OnRemoveRigBuilderCallback

Properties

graph

Retrieves the PlayableGraph created by this RigBuilder.

Declaration
public PlayableGraph graph { get; }
Property Value
Type Description
PlayableGraph

layers

Returns a list of RigLayer associated to this RigBuilder.

Declaration
public List<RigLayer> layers { get; set; }
Property Value
Type Description
List<RigLayer>

Methods

Build()

Builds the RigBuilder PlayableGraph.

Declaration
public bool Build()
Returns
Type Description
Boolean

Returns true if the RigBuilder has created a valid PlayableGraph. Returns false otherwise.

Build(PlayableGraph)

Builds the RigBuilder playable nodes in an external PlayableGraph.

Declaration
public bool Build(PlayableGraph graph)
Parameters
Type Name Description
PlayableGraph graph

Destination PlayableGraph.
Returns
Type Description
Boolean

Returns true if the RigBuilder has created Playable nodes. Returns false otherwise.

BuildPreviewGraph(PlayableGraph, Playable)

Appends custom Playable nodes to the animation previewer PlayableGraph.

Declaration
public Playable BuildPreviewGraph(PlayableGraph graph, Playable inputPlayable)
Parameters
Type Name Description
PlayableGraph graph

The animation previewer PlayableGraph
Playable inputPlayable

The current root of the PlayableGraph
Returns
Type Description
Playable
Implements

Clear()

Destroys the RigBuilder PlayableGraph and frees associated RigLayers memory.

Declaration
public void Clear()

Evaluate(Single)

Updates the RigBuilder layers and evaluates the PlayableGraph manually.

Declaration
public void Evaluate(float deltaTime)
Parameters
Type Name Description
Single deltaTime

The time in seconds by which to advance the RigBuilder PlayableGraph.
Examples

Manually evaluate the RigBuilder in LateUpdate.

    [RequireComponent(typeof(RigBuilder))]
public class CustomRigBuilderEvaluator : MonoBehaviour
{
    private RigBuilder m_RigBuilder;

    void OnEnable()
    {
        m_RigBuilder = GetComponent<RigBuilder>();

        // Disable the RigBuilder and set its PlayableGraph to manual update mode
        // to let the script evaluate it instead.
        m_RigBuilder.enabled = false;
        if (m_RigBuilder.Build())
        {
            m_RigBuilder.graph.SetTimeUpdateMode(DirectorUpdateMode.Manual);
        }
    }

    void LateUpdate()
    {
        m_RigBuilder.Evaluate(Time.deltaTime);
    }
}

StartPreview()

Notification callback when the animation previewer starts previewing an AnimationClip.

Declaration
public void StartPreview()
Implements
Remarks

This is called by the Animation Window or the Timeline Editor.

StopPreview()

Notification callback when the animation previewer stops previewing an AnimationClip.

Declaration
public void StopPreview()
Implements
Remarks

This is called by the Animation Window or the Timeline Editor.

SyncLayers()

Synchronizes rigs and constraints with scene values. This must be called before evaluating the PlayableGraph.

Declaration
public void SyncLayers()
Examples

Synchronizing layers before evaluating a PlayableGraph created outside the RigBuilder in LateUpdate.

    [RequireComponent(typeof(RigBuilder))]
public class CustomPlayableGraphEvaluator : MonoBehaviour
{
    private RigBuilder m_RigBuilder;
    private PlayableGraph m_PlayableGraph;

    void OnEnable()
    {
        m_RigBuilder = GetComponent<RigBuilder>();
        m_PlayableGraph = PlayableGraph.Create();
        m_PlayableGraph.SetTimeUpdateMode(DirectorUpdateMode.Manual);

        m_RigBuilder.Build(m_PlayableGraph);
    }

    void OnDisable()
    {
        if (m_PlayableGraph.IsValid())
            m_PlayableGraph.Destroy();
    }

    void LateUpdate()
    {
        m_RigBuilder.SyncLayers();
        m_PlayableGraph.Evaluate(Time.deltaTime);
    }
}
See Also
Update(TJob, TData)

UpdatePreviewGraph(PlayableGraph)

Notification callback when the animation previewer updates its PlayableGraph before sampling an AnimationClip.

Declaration
public void UpdatePreviewGraph(PlayableGraph graph)
Parameters
Type Name Description
PlayableGraph graph

The animation previewer PlayableGraph
Implements
Remarks

This is called by the Animation Window or the Timeline Editor.