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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 GameObject (read-only) appear at the bottom of the Inspector view, including a preview of the SpeedTree model with its material applied.

Location and Materials

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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 LOD 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.