MAXScript Language Reference > 3ds Max Objects > Animation Controllers > Controller Types > MasterBlock Controllers >

# MasterBlock : MasterBlockController

Value > MAXWrapper > Controllers > MasterBlockController > MasterBlock

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Constructor

The MasterBlock controller is not creatable by MAXScript. It can only be created in the Block Control node in the Global Tracks node of Track View. If multiple MasterBlocks are present, you will need to access the MasterBlocks as a subAnim of trackviewnodes.global_tracks.block_control . This is because all MasterBlocks have the same name (MasterBlock).

Properties

Once a MasterBlock has been created in Track View, the following MasterBlock property is available:

    <MasterBlock>.blend Float

Once a track has been added to the MasterBlock, a Block controller is added to the MasterBlock, and the track’s controller is added as an input controller to the Block controller. The name assigned to the Block controller is the name specified for the block. The Block controller is then available as a property of the MasterBlock, and the track’s controller is available as a property of the Block controller. In addition, the track’s controller is replaced with a list controller and the track’s original controller is placed in the list controller along with a Slave controller. This Slave controller is controlled by the Block controller. For example, if a block with name "BoxHeight" is present, and contains the height controller for a box object, the block and its track can be accessed as follows:

    mb=trackviewnodes.global_tracks.block_control[1]
    SubAnim:MasterBlock
    getpropnames mb
    #(#Blend, #height)
    h=mb.height
    SubAnim:height
    h.object
    Controller:Block
    getpropnames h
    #(#Box01_Height)
    h.box01_height
    157.083-- the box’s height
    h.box01_height.controller
    Controller:Bezier_Float-- the box’s height controller

#### See Also

- Controller Common Properties, Operators, and Methods

- MAXWrapper Common Properties, Operators, and Methods

- Value Common Properties, Operators, and Methods