# Sandbox.Diagnostics.FrameStats.InitialMaterialChanges

```csharp
double InitialMaterialChanges { get; set; }
```

Number of initial material changes across both colour and shadow passes (first bind of a material this frame).

Declared in [Sandbox.Diagnostics.FrameStats](/api/Sandbox.Diagnostics.FrameStats).
Assembly: `Sandbox.Engine`.