# Material Tab

The Material Tab looks different depending on the state of the Master Material selection:

* Invalid Material: The tab will show no parameters, only a message which says, "*Select a valid Landscape Material"*.
* [Valid Material/Compile to Update!](https://docs.shadersource.io/assets-and-plugins/landscape-material-tool/how-to-use-5.4+/landscape-material-tool-editor-mode/material-tab/valid-material): Parameters to edit for this Landscape Material.
* [Convertible Material](https://docs.shadersource.io/assets-and-plugins/landscape-material-tool/how-to-use-5.4+/landscape-material-tool-editor-mode/material-tab/convertible-material): Parameters and actions to convert a Landscape Material into a Landscape Material Tool-compatible Material.