Source: Roblox Creator Hub · CC BY 4.0 · View source · Code samples: MIT Imported 2026-10-03. Formatting adapted for this site.
AnimationNodeDefinition
Inherits from: Instance → Object
Represents one node in an animation graph, the node-based system that combines animation clips and poses at runtime. Its NodeType determines how the node processes animation, such as playing a clip, blending or overlaying two inputs, masking, or adjusting playback speed, while its NodeId uniquely identifies it within the graph. Nodes connect to one another through named input pins; changing a node's type resets its input pins to the default set for that type.
Inherits from: Instance
Memory category: Instances
Properties
| Name | Type / Returns | Description |
|---|---|---|
| AnimationNodeDefinition.NodeId | string | A string that uniquely identifies this node within its animation graph. |
| AnimationNodeDefinition.NodeType | AnimationNodeType | The kind of node this definition represents within its animation graph. |
Inherited from Instance
| Name | Type / Returns | Description |
|---|---|---|
| Instance.Archivable | boolean | Determines if an Instance and its descendants can be cloned using Instance:Clone(), and can be saved/published. |
| Instance.archivable | boolean | |
| Instance.Capabilities | SecurityCapabilities | The set of capabilities allowed to be used for scripts inside this container. |
| Instance.IsInSandbox | boolean | Indicates whether the instance is inside a sandboxed container. |
| Instance.Name | string | A non-unique identifier of the Instance. |
| Instance.Parent | Instance | Determines the hierarchical parent of the Instance. |
| Instance.PredictionMode | PredictionMode | Reflects the client-side prediction mode applied to the instance under server-authoritative physics. |
| Instance.RobloxLocked | boolean | A deprecated property that used to protect CoreGui objects. |
| Instance.Sandboxed | boolean | When enabled, the instance can only access abilities in its Capabilities list. |
| Instance.UniqueId | UniqueId | A unique identifier for the instance. |
Inherited from Object
| Name | Type / Returns | Description |
|---|---|---|
| Object.ClassName | string | A read-only string representing the class this Object belongs to. |
| Object.className | string |
AnimationNodeDefinition.NodeId
A unique identifier used to reference this node among the other nodes in its graph. Defaults to an empty string.
| Field | Value |
|---|---|
| type | string |
| security | {"read":"RobloxScriptSecurity","write":"RobloxScriptSecurity"} |
| thread safety | ReadSafe |
| category | Data |
| serialization | {"can_load":true,"can_save":true} |
| capabilities | ["Animation"] |
AnimationNodeDefinition.NodeType
Determines how the node processes animation within the graph, for example a clip source, an additive or overlay blend, a mask, or a speed adjustment (see AnimationNodeType). Defaults to InvalidNode. Changing this value resets the node's input pins to the default set defined for the new type.
| Field | Value |
|---|---|
| type | AnimationNodeType |
| security | {"read":"None","write":"None"} |
| thread safety | ReadSafe |
| category | Animation |
| serialization | {"can_load":true,"can_save":true} |
| capabilities | ["Animation"] |
Methods
| Name | Type / Returns | Description |
|---|---|---|
| AnimationNodeDefinition:AddInputPin | () | Appends a named input pin to the end of the ordered input pin list. |
| AnimationNodeDefinition:GetOrderedInputPinNames | Array | Returns the current ordered list of input pin names. |
| AnimationNodeDefinition:RemoveInputPin | () | Removes the first input pin matching the given name from the ordered pin list. |
| AnimationNodeDefinition:SetOrderedInputPinNames | () | Bulk-replaces the entire ordered input pin list. |
Inherited from Instance
| Name | Type / Returns | Description |
|---|---|---|
| Instance:AddTag | () | Applies a tag to the instance. |
| Instance:children | Instances | Returns an array of the object's children. |
| Instance:ClearAllChildren | () | This method destroys all of an instance's children. |
| Instance:Clone | Instance | Create a copy of an instance and all its descendants, ignoring instances that are not Archivable. |
| Instance:clone | Instance | |
| Instance:Destroy | () | Sets the Instance.Parent property to nil, locks the Instance.Parent property, disconnects all connections, and calls Destroy() on all children. |
| Instance:destroy | () | |
| Instance:FindFirstAncestor | Instance? | Returns the first ancestor of the Instance whose Instance.Name is equal to the given name. |
| Instance:FindFirstAncestorOfClass | Instance? | Returns the first ancestor of the Instance whose Object.ClassName is equal to the given className. |
| Instance:FindFirstAncestorWhichIsA | Instance? | Returns the first ancestor of the Instance for whom Object:IsA() returns true for the given className. |
| Instance:FindFirstChild | Instance? | Returns the first child of the Instance found with the given name. |
| Instance:findFirstChild | Instance | |
| Instance:FindFirstChildOfClass | Instance? | Returns the first child of the Instance whose ClassName is equal to the given class name. |
| Instance:FindFirstChildWhichIsA | Instance? | Returns the first child of the Instance for whom Object:IsA() returns true for the given className. |
| Instance:FindFirstDescendant | Instance? | Returns the first descendant found with the given Instance.Name. |
| Instance:GetActor | Actor? | Returns the Actor associated with the Instance, if any. |
| Instance:GetAttribute | Variant | Returns the value which has been assigned to the given attribute name. |
| Instance:GetAttributeChangedSignal | RBXScriptSignal | Returns an event that fires when the given attribute changes. |
| Instance:GetAttributes | Dictionary | Returns a dictionary of the instance's attributes. |
| Instance:GetChildren | Instances | Returns an array containing all of the instance's children. |
| Instance:getChildren | Instances | |
| Instance:GetDebugId | string | Returns a coded string of the debug ID used internally by Roblox. |
| Instance:GetDescendants | Instances | Returns an array containing all of the descendants of the instance. |
| Instance:GetFullName | string | Returns a string describing the instance's ancestry. |
| Instance:GetStyled | Variant | Returns the styled or explicitly modified value of the specified property, or else the default property value if it hasn't been styled/modified. |
| Instance:GetStyledPropertyChangedSignal | RBXScriptSignal | Returns an event that fires when the given style property changes on the instance. |
| Instance:GetTags | Array | Gets an array of all tags applied to the instance. |
| Instance:HasTag | boolean | Check whether the instance has a given tag. |
| Instance:IsAncestorOf | boolean | Returns true if an Instance is an ancestor of the given descendant. |
| Instance:IsDescendantOf | boolean | Returns true if an Instance is a descendant of the given ancestor. |
| Instance:isDescendantOf | boolean | |
| Instance:IsPropertyModified | boolean | Returns true if the value stored in the specified property is not equal to the code-instantiated default. |
| Instance:QueryDescendants | Instances | Returns an array containing all descendants of the instance that match the selector string. |
| Instance:Remove | () | Sets the object's Parent to nil, and does the same for all its descendants. |
| Instance:remove | () | |
| Instance:RemoveTag | () | Removes a tag from the instance. |
| Instance:ResetPropertyToDefault | () | Resets a property to its default value. |
| Instance:SetAttribute | () | Sets the attribute with the given name to the given value. |
| Instance:WaitForChild | Instance | Returns the child of the Instance with the given name. If the child does not exist, it will yield the current thread until it does. |
Inherited from Object
| Name | Type / Returns | Description |
|---|---|---|
| Object:GetPropertyChangedSignal | RBXScriptSignal | Get an event that fires when a given property of the object changes. |
| Object:IsA | boolean | Returns true if an object's class matches or inherits from a given class. |
| Object:isA | boolean |
AnimationNodeDefinition:AddInputPin
Appends a named input pin to the end of the ordered input pin list. The order in which pins are added is significant for nodes such as AnimationNodeType.SequenceNode, AnimationNodeType.RandomSequenceNode, and AnimationNodeType.PrioritySelectNode.
Parameters
| Name | Type | Default | Description |
|---|---|---|---|
| pin | string | Name of the input pin to append. Should match the Name of the corresponding ObjectValue wiring child. |
Returns
| Type | Description |
|---|---|
| () |
| Field | Value |
|---|---|
| security | None |
| thread safety | Unsafe |
| capabilities | ["Animation"] |
AnimationNodeDefinition:GetOrderedInputPinNames
Returns the current ordered list of input pin names.
Returns
| Type | Description |
|---|---|
| Array | The ordered list of input pin names. |
| Field | Value |
|---|---|
| security | None |
| thread safety | Unsafe |
| capabilities | ["Animation"] |
AnimationNodeDefinition:RemoveInputPin
Removes the first input pin matching the given name from the ordered pin list.
Parameters
| Name | Type | Default | Description |
|---|---|---|---|
| pin | string | Name of the input pin to remove. Only the first pin matching this name is removed. |
Returns
| Type | Description |
|---|---|
| () |
| Field | Value |
|---|---|
| security | None |
| thread safety | Unsafe |
| capabilities | ["Animation"] |
AnimationNodeDefinition:SetOrderedInputPinNames
Bulk-replaces the entire ordered input pin list. Use this to reorder pins or apply batch updates in a single call.
Parameters
| Name | Type | Default | Description |
|---|---|---|---|
| pins | Array | The new ordered list of input pin names, replacing the existing list. |
Returns
| Type | Description |
|---|---|
| () |
| Field | Value |
|---|---|
| security | None |
| thread safety | Unsafe |
| capabilities | ["Animation"] |
Events
| Name | Type / Returns | Description |
|---|---|---|
| AnimationNodeDefinition.InputPinsChanged | Fires whenever the ordered input pin list is modified. |
Inherited from Instance
| Name | Type / Returns | Description |
|---|---|---|
| Instance.AncestryChanged | Fires when the Instance.Parent property of this object or one of its ancestors is changed. | |
| Instance.AttributeChanged | Fires whenever an attribute is changed on the Instance. | |
| Instance.ChildAdded | Fires after an object is parented to this Instance. | |
| Instance.childAdded | ||
| Instance.ChildRemoved | Fires after a child is removed from this Instance. | |
| Instance.DescendantAdded | Fires after a descendant is added to the Instance. | |
| Instance.DescendantRemoving | Fires immediately before a descendant of the Instance is removed. | |
| Instance.Destroying | Fires immediately before (or is deferred until after) the instance is destroyed via Instance:Destroy(). | |
| Instance.StyledPropertiesChanged | Fires whenever any style property is changed on the instance, including when a property is set to nil. |
Inherited from Object
| Name | Type / Returns | Description |
|---|---|---|
| Object.Changed | Fires immediately after a property of the object changes, with some limitations. |
AnimationNodeDefinition.InputPinsChanged
Fires whenever the ordered input pin list is modified.
| Field | Value |
|---|---|
| security | None |
| capabilities | ["Animation"] |