Materials tab
Use the Materials tab to change how Unity deals with materials for an imported SpeedTree model. If the model has materials, Unity imports them as sub-assets.
To change other import settings for the SpeedTree model, see the Model tab.
The Materials tab has these sections:
(A) The Location and Materials properties allow you to control how Unity accesses the materials inside the imported asset.
(B) The Remapped Materials section allows you to remap the imported materials to existing materials in your project.
(C) The Revert and Apply options always appear, but you can only select them after you make changes to the import settings. If you change settings in the Remapped Materials section of the Materials tab, the Apply & Generate Materials option appears.
(D) The properties for the GameObjectThe fundamental object in Unity scenes, which can represent characters, props, scenery, cameras, waypoints, and more. A GameObject’s functionality is defined by the Components attached to it. More info
See in Glossary (read-only) appear at the bottom of the InspectorA Unity window that displays information about the currently selected GameObject, asset or project settings, allowing you to inspect and edit the values. More info
See in Glossary view, including a preview of the SpeedTree model with its material applied.
Location and Materials
| Property | Description | |
|---|---|---|
| Location | Define how the materials are accessed. These options aren’t available for .st9 files, which only use embedded materials. | |
| Use Embedded Materials | Import materials as sub-assets inside the SpeedTree model. This is the default and recommended option. | |
| Use External Materials (Legacy) | Extract materials to a folder with the same name and location as the model. This is a deprecated option for projects created with Unity 2017.1 or earlier and isn’t recommended for use. | |
| Materials | For .st and .spm files, this property is visible only when Location is set to Use Embedded Materials. | |
| Extract Materials | Extract the embedded materials from the imported asset and save them to a folder of your choice. Extracted materials populate the Remapped Materials list. Use this option to modify the materials or share them with other SpeedTree assets. This option isn’t available if there are no sub-asset materials to extract from the model. | |
Remapped Materials
The Remapped Materials section lists the embedded materials and allows you to remap them to other materials that are already in the project.
If you already have a set of materials you want to use for this asset, expand the On Demand Remap group, select Search and Remap , and give the location of the materials. Unity remaps the imported materials to existing materials with the same name. Nothing changes if Unity can’t find any materials with the same name. You can manually remap materials from the Remapped Materials list.
To save the imported SpeedTree model with the remapped materials, select Apply.
If you make changes to the material properties through the Model tab’s import settings or an LODThe Level Of Detail (LOD) technique is an optimization that reduces the number of triangles that Unity has to render for a GameObject when its distance from the Camera increases. More info
See in Glossary setting override, select Regenerate Materials to re-import the materials in the Remapped Materials list with the updated settings.
Warning: Re-generating the external materials removes any manual modifications you made to the material files.
New imports or changes to the original asset don’t affect extracted materials. If you want to re-import the materials from the source asset, remove the references to the extracted materials in the Remapped Materials list. To remove an item from the list, select it and press the Backspace key on your keyboard.