The Material Property subnode () declares a new property for a node. It is similar to the Material Property node used in features or properties but with fewer options.

To add an Material Property node right-click Material Property Group and select it from the context menu.

The Settings window has the following section:

Select a Property type: Custom material property (the default) or Basic material property. For Basic material property, select a material Physical quantity. For Custom material property see the Variable Declaration node for the settings.

The Expression field is empty by default. You can use it to add a nonempty default expression. In some situations, however, properties can get a default value. The example property in the figure below uses an analytical function to supply a more complex default expression. The properties Bs and Hs are empty by default and must be supplied by the user.