new VRButtonViewModel(scene, vrElementopt)
    The view model for 
    VRButton.
Parameters:
| Name | Type | Attributes | Default | Description | 
|---|---|---|---|---|
| scene | Scene | The scene. | ||
| vrElement | Element | String | <optional> | document.body | The element or id to be placed into VR mode. | 
Members
command :Command
    Gets the Command to toggle VR mode.
    Type:
isVREnabled :Boolean
    Gets or sets whether or not VR functionality should be enabled.
    Type:
- Boolean
- Source:
- See:
isVRMode :Boolean
    Gets whether or not VR mode is active.
    Type:
- Boolean
tooltip :String
    Gets the tooltip.  This property is observable.
    Type:
- String
vrElement :Element
    Gets or sets the HTML element to place into VR mode when the
corresponding button is pressed.
    Type:
- Element
Methods
destroy()
    Destroys the view model.  Should be called to
properly clean up the view model when it is no longer needed.
        
            
    
    isDestroyed() → {Boolean}
Returns:
    true if the object has been destroyed, false otherwise.
- Type
- Boolean