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# name

The unique identifier for this node definition.

```
var name: String { get }
```

## Discussion

Names follow the MaterialX convention, encoding the functional operation,
input types, and output type. For example, `ND_atan2_float` identifies the
two-argument arctangent node whose output is a `float`.

Use this value to look up a specific definition via
[`definition(named:)`](/documentation/RealityKit/ShaderGraph/NodeLibrary/definition(named:)).

---

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