# <SimMission.CameraTargetTrigger><no value>
This element can be used to define a trigger that will be fired when something is in the actual camera frustrum. This element is used as part of the XML file used to generate a mission. Full information on this file can be found here:

-   [Mission XML Properties](../mission-xml-properties/)

 

This element has the following attributes:

 

{{< table-wrapper >}}

| Attribute      | Description                                                                                                                                                                                                | Type   | Required |
|----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|:--------:|
| `InstanceId`   | The unique ID for the trigger action, as a {{< glossterm >}}guid{{< /glossterm >}} enclosed in `{}`. You can find more information on GUID's here: [GUIDs](../../../introduction/using-the-sdk/#GUIDs) | String |    Yes   |
| `VRDependency` | When set to TRUE, this sets the trigger action as being VR dependent. Default is FALSE.                                                                                                                    | Bool   |    No    |

{{< /table-wrapper >}}


 

This element can also contain any of the following sub-elements, sometimes multiple times:

1.  `<Descr>`
2.  `<Activated>`
3.  `<DefaultActivated>`
4.  `<Latched>`
5.  `<OneShot>`
6.  `<OnEnterActions>`
7.  `<OnExitActions>`
8.  `<AttachedWorldPosition>`
9.  `<InitWorldPosition>`
10. `<AttachedWorldObject>`
11. `<InitRelativeToWorldObject>`
12. `<RelativePosition>`
13. `<SphereRadius>`
14. `<WholeSphere>`
15. `<ThroughWindShield>`
16. `<FrustrumScaleX>`
17. `<FrustrumScaleY>`
18. `<ShowMarker>`

 

 

### &lt;SphereRadius&gt;

This sub-element of `<SimMission.CameraTargetTrigger>` has no attributes and simply defines the radius of the sphere - in meters - that will be used to fire the camera trigger. This element has no default value and must be included as part of the trigger definition.

 

 

### &lt;WholeSphere&gt;

This sub-element of `<SimMission.CameraTargetTrigger>` has no attributes and is used to tell the simulation whether the *whole* sphere should be in the camera frustum to fire the trigger (set to TRUE) or only part of the sphere (set to FALSE). Default value is FALSE.

 

 

### &lt;ThroughWindShield&gt;

This sub-element of `<SimMission.CameraTargetTrigger>` has no attributes and is used to tell the simulation whether to detect the trigger if there is a collision with the windshield between the camera and the trigger sphere. When set to TRUE the trigger will not be fired of there is a collision, and if set to FALSE then it will. Default value is FALSE.

 

 

### &lt;FrustrumScaleX&gt;

This sub-element of `<SimMission.CameraTargetTrigger>` has no attributes and is used to set the scale of the camera frustum along the X axis. The default value for this element is 1.

 

 

### &lt;FrustrumScaleY&gt;

This sub-element of `<SimMission.CameraTargetTrigger>` has no attributes and is used to set the scale of the camera frustum along the Y axis. The default value for this element is 1.

 

 

### &lt;ShowMarker&gt;

This sub-element of `<SimMission.CameraTargetTrigger>` has no attributes and is used to tell the simulation whether to show a marker to the user (set to TRUE) or not (set to FALSE). Default value is FALSE.