# OnPreprocessModel()

> Add this function to a subclass to get a notification just before a model (.fbx,.mb file etc.) is imported.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor](/engine/6000.6/script-reference/unityeditor.md)

```csharp
public void OnPreprocessModel()
```

### Remarks

This lets you control the import settings through code.

### Examples

```csharp

using UnityEngine;
using UnityEditor;

// Disable import of materials if the file contains
// the @ sign marking it as an animation.
public class Example : AssetPostprocessor
{
    // Increment the version number, when the AssetPostprocessors code/behavior is changed
    static readonly uint k_Version = 0;
    public override uint GetVersion() { return k_Version; }

    void OnPreprocessModel()
    {
        if (assetPath.Contains("@"))
        {
            ModelImporter modelImporter = assetImporter as ModelImporter;
            modelImporter.materialImportMode = ModelImporterMaterialImportMode.None;
        }
    }
}
```