The Layered Material Link subnode (

) is used for referencing a
Layered Material from a
Layered Material Stack node. You can add any number of
Layered Material Link subnodes under a
Layered Material Stack node.
By clicking the Go to Material (

) button you can jump to the settings for the selected material.
Click the Add Layered Material button (

) to add another
Layered Material or a
Switch. The added material then becomes the one selected in the
Material list.
From the Transform list, choose one of the following options:
Select the Scale check box to scale the layered material’s thickness with a factor (default: 1). The scale can be a numerical value, a parameter, or an expression. Such an expression can, for example, be a function of the coordinates so that a surface with variable thickness can be described.
Click the Layer Cross Section Preview button (

to plot a preview of the layer cross section including the transform. You can also click the downward pointing arrow to choose
Layer Cross Section Preview (

) or
Create Layer Cross Section Preview (

), which adds the preview plot as a new plot group under
Results. Click the
Layer Stack Preview button (

) to get a preview of the stack with the transform. Click the
Create Layer Stack Plot button (

) to add the preview of the stack with the transform as a new plot group under
Results.