Blend trees are used to blend continuously animation between their children. They can either be 1D or 2D.
| blendParameter | Parameter that is used to compute the blending weight of the children in 1D blend trees or on the X axis of a 2D blend tree. | 
| blendParameterY | Parameter that is used to compute the blending weight of the children on the Y axis of a 2D blend tree. | 
| blendType | The Blending type can be either 1D or different types of 2D. | 
| children | A copy of the list of the blend tree child motions. | 
| maxThreshold | Sets the maximum threshold that will be used by the ChildMotion. Only used when useAutomaticThresholds is true. | 
| minThreshold | Sets the minimum threshold that will be used by the ChildMotion. Only used when useAutomaticThresholds is true. | 
| useAutomaticThresholds | When active, the children's thresholds are automatically spread between 0 and 1. | 
| AddChild | Utility function to add a child motion to a blend trees. | 
| CreateBlendTreeChild | Utility function to add a child blend tree to a blend tree. | 
| RemoveChild | Utility function to remove the child of a blend tree. | 
| hideFlags | Should the object be hidden, saved with the Scene or modifiable by the user? | 
| name | The name of the object. | 
| GetInstanceID | Gets the instance ID of the object. | 
| ToString | Returns the name of the object. | 
| Destroy | Removes a GameObject, component or asset. | 
| DestroyImmediate | Destroys the object obj immediately. You are strongly recommended to use Destroy instead. | 
| DontDestroyOnLoad | Do not destroy the target Object when loading a new Scene. | 
| FindAnyObjectByType | Retrieves any active loaded object of Type type. | 
| FindFirstObjectByType | Retrieves the first active loaded object of Type type. | 
| FindObjectsByType | Retrieves a list of all loaded objects of Type type. | 
| Instantiate | Clones the object original and returns the clone. | 
| bool | Does the object exist? | 
| operator != | Compares if two objects refer to a different object. | 
| operator == | Compares two object references to see if they refer to the same object. |