Apple Shake 4 - Manual (Page 483)

Chapter 17 Layered Photoshop Files and the MultiLayer Node 483
Layer Parameters Subtree
Each layer in the layers list has additional parameters within a subtree that provide
additional control.
layerName
The name of the layer. All associated parameters for that layer are prefixed by the
layerName.
opacity
Opacity of the input layer. With an imported Photoshop file, there is an additional
PSOpacity parameter. See “
Supported Photoshop Transfer Modes ” on page 476 for
more information.
preMult
Indicates whether the layer is to be premultiplied.
compChannels
Sets which channels are passed up from below (behind) this layer.