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# weight

A normalized percentage that designates how much effect this node has
relative to peer nodes.

```
var weight: BlendWeight { get set }
```

## Discussion

The value of this property relates to the node’s peers in a
[`sources`](/documentation/RealityKit/BlendTreeBlendNode/sources) array. The sum of all node weights in a
given [`sources`](/documentation/RealityKit/BlendTreeBlendNode/sources) array needs to equal `1.0`.

---

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