| Interface | Description | 
|---|---|
| Control | An interface for scene-graph controls. | 
| Class | Description | 
|---|---|
| AbstractControl | An abstract implementation of the Control interface. | 
| AreaUtils | AreaUtilsis used to calculate the area of various objects, such as bounding volumes. | 
| BillboardControl | |
| CameraControl | This Control maintains a reference to a Camera,
 which will be synched with the position (worldTranslation)
 of the current spatial. | 
| LightControl | This Control maintains a reference to a Camera,
 which will be synched with the position (worldTranslation)
 of the current spatial. | 
| LodControl | Determines what Level of Detail a spatial should be, based on how many pixels
 on the screen the spatial is taking up. | 
| UpdateControl | Allows for enqueueing tasks onto the update loop / rendering thread. | 
| Enum | Description | 
|---|---|
| BillboardControl.Alignment | Determines how the billboard is aligned to the screen/camera. | 
| CameraControl.ControlDirection | |
| LightControl.ControlDirection |