# Sandbox.Terrain.TerrainMaterialInfo.GetDominantMaterialIndex

```csharp
int GetDominantMaterialIndex()
```

Gets the dominant material index at this position based on blend factor

### Returns

`int`

Declared in [Sandbox.Terrain.TerrainMaterialInfo](/api/Sandbox.Terrain.TerrainMaterialInfo).
Assembly: `Sandbox.Engine`.