| Interface | Description | 
|---|---|
| Control | 
 An interface for scene-graph controls. 
 | 
| Class | Description | 
|---|---|
| AbstractControl | 
 An abstract implementation of the Control interface. 
 | 
| AreaUtils | 
AreaUtils is 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 |