# LookAtConstraint > Constrains the orientation of a GameObject based on the position of one or more sources. ## Definition * **Type:** Class * **Namespace:** [UnityEngine.Animations](/engine/6000.5/script-reference/unityengine/animations.md) * **Assembly:** UnityEngine.AnimationModule * **Inherits from:** [Behaviour](/engine/6000.5/script-reference/unityengine/behaviour.md) * **Implements:** [IConstraint](/engine/6000.5/script-reference/unityengine/animations/iconstraint.md) ```csharp [RequireComponent(typeof(Transform))] public sealed class LookAtConstraint : Behaviour, IConstraint ``` ## Remarks This constraint is similar to [AimConstraint](/engine/6000.5/script-reference/unityengine/animations/aimconstraint.md) but is meant for constraining a [Camera](/engine/6000.5/script-reference/unityengine/camera.md). Use this constraint to point a [Camera](/engine/6000.5/script-reference/unityengine/camera.md) towards other sources. You can also adjust the weight of each source to influence whether the [Camera](/engine/6000.5/script-reference/unityengine/camera.md) points more towards one source over another source. Make sure you use `LookAtConstraint` properties to align the orientation of the constraint. Otherwise, the constrained [Camera](/engine/6000.5/script-reference/unityengine/camera.md) might point in the wrong direction. Refer to [Look At Constraint Component](/engine/6000.5/manual/working-with-gameobjects/unity-components/constraint-components/class-look-at-constraint.md) for more details. Additional Resources: [ConstraintSource](/engine/6000.5/script-reference/unityengine/animations/constraintsource.md), [AimConstraint](/engine/6000.5/script-reference/unityengine/animations/aimconstraint.md), [ParentConstraint](/engine/6000.5/script-reference/unityengine/animations/parentconstraint.md). ## Examples ```csharp // This example uses a LookAtConstraint to point a GameObject towards two sources. // The first source has a greater influence than the second source based on their assigned weight. using UnityEngine; using UnityEngine.Animations; public class LookAtExample : MonoBehaviour { public Transform sourceA; public Transform sourceB; private LookAtConstraint m_LookAtConstraint; void Start() { m_LookAtConstraint = gameObject.AddComponent(); ConstraintSource source1 = new ConstraintSource { sourceTransform = sourceA, weight = 0.6f }; ConstraintSource source2 = new ConstraintSource { sourceTransform = sourceB, weight = 0.4f }; m_LookAtConstraint.AddSource(source1); m_LookAtConstraint.AddSource(source2); m_LookAtConstraint.constraintActive = true; } } ``` ## Properties | Property | Description | | --------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | [constraintActive](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/constraintactive.md) | Activates or deactivates the constraint. | | [locked](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/locked.md) | Locks the offset and rotation at rest. | | [roll](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/roll.md) | The rotation angle along the z axis of the object. The constraint uses this property to calculate the world up vector when [UseUpObject](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/useupobject.md) is false. | | [rotationAtRest](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/rotationatrest.md) | The rotation used when the sources have a total weight of 0. | | [rotationOffset](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/rotationoffset.md) | Represents an offset from the constrained orientation. | | [sourceCount](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/sourcecount.md) | The number of sources set on the component (Read Only). | | [useUpObject](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/useupobject.md) | Determines how the up vector is calculated. | | [weight](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/weight.md) | The weight of the constraint component. | | [worldUpObject](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/worldupobject.md) | The world up object, used to calculate the world up vector when [UseUpObject](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/useupobject.md) is true. | ## Methods | Method | Description | | ------------------------------------------------------------------------------------------------------- | ------------------------------------------ | | [AddSource](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/addsource.md) | Adds a constraint source. | | [GetSource](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/getsource.md) | Gets a constraint source by index. | | [GetSources](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/getsources.md) | Gets the list of sources. | | [RemoveSource](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/removesource.md) | Removes a source from the component. | | [SetSource](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/setsource.md) | Sets a source at a specified index. | | [SetSources](/engine/6000.5/script-reference/unityengine/animations/lookatconstraint/setsources.md) | Sets the list of sources on the component. | ## Inheritance **Inherited Members:** * [Behaviour.enabled](/engine/6000.5/script-reference/unityengine/behaviour/enabled.md) * [Behaviour.isActiveAndEnabled](/engine/6000.5/script-reference/unityengine/behaviour/isactiveandenabled.md) * [Component.GetComponent(Type)](/engine/6000.5/script-reference/unityengine/component/getcomponent.md#getcomponent\(type\)) * [Component.GetComponent\()](/engine/6000.5/script-reference/unityengine/component/getcomponent.md) * [Component.TryGetComponent(Type, Component)](/engine/6000.5/script-reference/unityengine/component/trygetcomponent.md) * [Component.TryGetComponent\(T)](/engine/6000.5/script-reference/unityengine/component/trygetcomponent.md) * [Component.GetComponent(string)](/engine/6000.5/script-reference/unityengine/component/getcomponent.md#getcomponent\(string\)) * [Component.GetComponentInChildren(Type, bool)](/engine/6000.5/script-reference/unityengine/component/getcomponentinchildren.md#getcomponentinchildren\(type-bool\)) * [Component.GetComponentInChildren(Type)](/engine/6000.5/script-reference/unityengine/component/getcomponentinchildren.md#getcomponentinchildren\(type\)) * [Component.GetComponentInChildren\(bool)](/engine/6000.5/script-reference/unityengine/component/getcomponentinchildren.md) * [Component.GetComponentsInChildren(Type, bool)](/engine/6000.5/script-reference/unityengine/component/getcomponentsinchildren.md) * [Component.GetComponentsInChildren\(bool)](/engine/6000.5/script-reference/unityengine/component/getcomponentsinchildren.md#getcomponentsinchildrent\(bool\)) * [Component.GetComponentsInChildren\(bool, List\)](/engine/6000.5/script-reference/unityengine/component/getcomponentsinchildren.md) * [Component.GetComponentsInChildren\()](/engine/6000.5/script-reference/unityengine/component/getcomponentsinchildren.md#getcomponentsinchildrent\(\)) * [Component.GetComponentsInChildren\(List\)](/engine/6000.5/script-reference/unityengine/component/getcomponentsinchildren.md) * [Component.GetComponentInParent(Type, bool)](/engine/6000.5/script-reference/unityengine/component/getcomponentinparent.md#getcomponentinparent\(type-bool\)) * [Component.GetComponentInParent(Type)](/engine/6000.5/script-reference/unityengine/component/getcomponentinparent.md#getcomponentinparent\(type\)) * [Component.GetComponentInParent\(bool)](/engine/6000.5/script-reference/unityengine/component/getcomponentinparent.md#getcomponentinparentt\(bool\)) * [Component.GetComponentInParent\()](/engine/6000.5/script-reference/unityengine/component/getcomponentinparent.md#getcomponentinparentt\(\)) * [Component.GetComponentsInParent(Type, bool)](/engine/6000.5/script-reference/unityengine/component/getcomponentsinparent.md) * [Component.GetComponentsInParent\(bool)](/engine/6000.5/script-reference/unityengine/component/getcomponentsinparent.md#getcomponentsinparentt\(bool\)) * [Component.GetComponentsInParent\(bool, List\)](/engine/6000.5/script-reference/unityengine/component/getcomponentsinparent.md) * [Component.GetComponentsInParent\()](/engine/6000.5/script-reference/unityengine/component/getcomponentsinparent.md#getcomponentsinparentt\(\)) * [Component.GetComponents(Type)](/engine/6000.5/script-reference/unityengine/component/getcomponents.md#getcomponents\(type\)) * [Component.GetComponents(Type, List\)](/engine/6000.5/script-reference/unityengine/component/getcomponents.md#getcomponents\(type-listcomponent\)) * [Component.GetComponents\(List\)](/engine/6000.5/script-reference/unityengine/component/getcomponents.md) * [Component.GetComponents\()](/engine/6000.5/script-reference/unityengine/component/getcomponents.md#getcomponentst\(\)) * [Component.GetComponentIndex()](/engine/6000.5/script-reference/unityengine/component/getcomponentindex.md) * [Component.CompareTag(string)](/engine/6000.5/script-reference/unityengine/component/comparetag.md#comparetag\(string\)) * [Component.CompareTag(TagHandle)](/engine/6000.5/script-reference/unityengine/component/comparetag.md#comparetag\(taghandle\)) * [Component.SendMessageUpwards(string, Object, SendMessageOptions)](/engine/6000.5/script-reference/unityengine/component/sendmessageupwards.md#sendmessageupwards\(string-object-sendmessageoptions\)) * [Component.SendMessageUpwards(string, SendMessageOptions)](/engine/6000.5/script-reference/unityengine/component/sendmessageupwards.md#sendmessageupwards\(string-sendmessageoptions\)) * [Component.SendMessage(string, Object)](/engine/6000.5/script-reference/unityengine/component/sendmessage.md#sendmessage\(string-object\)) * [Component.SendMessage(string)](/engine/6000.5/script-reference/unityengine/component/sendmessage.md#sendmessage\(string\)) * [Component.SendMessage(string, Object, SendMessageOptions)](/engine/6000.5/script-reference/unityengine/component/sendmessage.md#sendmessage\(string-object-sendmessageoptions\)) * [Component.SendMessage(string, SendMessageOptions)](/engine/6000.5/script-reference/unityengine/component/sendmessage.md#sendmessage\(string-sendmessageoptions\)) * [Component.BroadcastMessage(string, Object, SendMessageOptions)](/engine/6000.5/script-reference/unityengine/component/broadcastmessage.md#broadcastmessage\(string-object-sendmessageoptions\)) * [Component.BroadcastMessage(string, SendMessageOptions)](/engine/6000.5/script-reference/unityengine/component/broadcastmessage.md#broadcastmessage\(string-sendmessageoptions\)) * [Component.transform](/engine/6000.5/script-reference/unityengine/component/transform.md) * [Component.transformHandle](/engine/6000.5/script-reference/unityengine/component/transformhandle.md) * [Component.gameObject](/engine/6000.5/script-reference/unityengine/component/gameobject.md) * [Component.tag](/engine/6000.5/script-reference/unityengine/component/tag.md) * [Object.GetEntityId()](/engine/6000.5/script-reference/unityengine/object/getentityid.md) * [Object.GetHashCode()](/engine/6000.5/script-reference/unityengine/object/gethashcode.md) * [Object.InstantiateAsync\(T)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, Transform)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, Vector3, Quaternion)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, Transform, Vector3, Quaternion)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, int)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, int, Transform)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, int, Vector3, Quaternion)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, int, ReadOnlySpan\, ReadOnlySpan\)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, int, Transform, Vector3, Quaternion)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, int, Transform, Vector3, Quaternion, CancellationToken)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, int, Transform, ReadOnlySpan\, ReadOnlySpan\)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, int, Transform, ReadOnlySpan\, ReadOnlySpan\, CancellationToken)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, InstantiateParameters, CancellationToken)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, int, InstantiateParameters, CancellationToken)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, Vector3, Quaternion, InstantiateParameters, CancellationToken)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, int, Vector3, Quaternion, InstantiateParameters, CancellationToken)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.InstantiateAsync\(T, int, ReadOnlySpan\, ReadOnlySpan\, InstantiateParameters, CancellationToken)](/engine/6000.5/script-reference/unityengine/object/instantiateasync.md) * [Object.Instantiate(Object, Vector3, Quaternion)](/engine/6000.5/script-reference/unityengine/object/instantiate.md#instantiate\(object-vector3-quaternion\)) * [Object.Instantiate(Object, Vector3, Quaternion, Transform)](/engine/6000.5/script-reference/unityengine/object/instantiate.md#instantiate\(object-vector3-quaternion-transform\)) * [Object.Instantiate(Object)](/engine/6000.5/script-reference/unityengine/object/instantiate.md#instantiate\(object\)) * [Object.Instantiate(Object, Scene)](/engine/6000.5/script-reference/unityengine/object/instantiate.md#instantiate\(object-scene\)) * [Object.Instantiate\(T, InstantiateParameters)](/engine/6000.5/script-reference/unityengine/object/instantiate.md) * [Object.Instantiate\(T, Vector3, Quaternion, InstantiateParameters)](/engine/6000.5/script-reference/unityengine/object/instantiate.md) * [Object.Instantiate(Object, Transform)](/engine/6000.5/script-reference/unityengine/object/instantiate.md#instantiate\(object-transform\)) * [Object.Instantiate(Object, Transform, bool)](/engine/6000.5/script-reference/unityengine/object/instantiate.md#instantiate\(object-transform-bool\)) * [Object.Instantiate\(T)](/engine/6000.5/script-reference/unityengine/object/instantiate.md) * [Object.Instantiate\(T, Vector3, Quaternion)](/engine/6000.5/script-reference/unityengine/object/instantiate.md) * [Object.Instantiate\(T, Vector3, Quaternion, Transform)](/engine/6000.5/script-reference/unityengine/object/instantiate.md) * [Object.Instantiate\(T, Transform)](/engine/6000.5/script-reference/unityengine/object/instantiate.md) * [Object.Instantiate\(T, Transform, bool)](/engine/6000.5/script-reference/unityengine/object/instantiate.md) * [Object.Destroy(Object, float)](/engine/6000.5/script-reference/unityengine/object/destroy.md) * [Object.DestroyImmediate(Object, bool)](/engine/6000.5/script-reference/unityengine/object/destroyimmediate.md) * [Object.FindObjectsByType(Type)](/engine/6000.5/script-reference/unityengine/object/findobjectsbytype.md#findobjectsbytype\(type\)) * [Object.FindObjectsByType(Type, FindObjectsInactive)](/engine/6000.5/script-reference/unityengine/object/findobjectsbytype.md#findobjectsbytype\(type-findobjectsinactive\)) * [Object.DontDestroyOnLoad(Object)](/engine/6000.5/script-reference/unityengine/object/dontdestroyonload.md) * [Object.FindAnyObjectByType\()](/engine/6000.5/script-reference/unityengine/object/findanyobjectbytype.md#findanyobjectbytypet\(\)) * [Object.FindAnyObjectByType\(FindObjectsInactive)](/engine/6000.5/script-reference/unityengine/object/findanyobjectbytype.md#findanyobjectbytypet\(findobjectsinactive\)) * [Object.FindObjectsByType\()](/engine/6000.5/script-reference/unityengine/object/findobjectsbytype.md#findobjectsbytypet\(\)) * [Object.FindObjectsByType\(FindObjectsInactive)](/engine/6000.5/script-reference/unityengine/object/findobjectsbytype.md#findobjectsbytypet\(findobjectsinactive\)) * [Object.FindAnyObjectByType(Type)](/engine/6000.5/script-reference/unityengine/object/findanyobjectbytype.md#findanyobjectbytype\(type\)) * [Object.FindAnyObjectByType(Type, FindObjectsInactive)](/engine/6000.5/script-reference/unityengine/object/findanyobjectbytype.md#findanyobjectbytype\(type-findobjectsinactive\)) * [Object.ToString()](/engine/6000.5/script-reference/unityengine/object/tostring.md) * [Object.name](/engine/6000.5/script-reference/unityengine/object/name.md) * [Object.hideFlags](/engine/6000.5/script-reference/unityengine/object/hideflags.md) ### Operators | Operator | Description | | ---------------------------------------------------------------------------------- | ----------------------------------------------------------------------- | | [operator ==](/engine/6000.5/script-reference/unityengine/object/op-equality.md) | Compares two object references to see if they refer to the same object. | | [bool](/engine/6000.5/script-reference/unityengine/object/op-implicit.md) | Determines whether the object exists. | | [operator !=](/engine/6000.5/script-reference/unityengine/object/op-inequality.md) | Compares if two objects refer to a different object. |