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# MTLBlendFactor.unspecialized

Defers assigning the blend factor.

```
case unspecialized
```

## Discussion

Until you specialize this value in the pipeline state, it:

- behaves as `MTLBlendFactorOne` for `sourceRGBBlendFactor` and `sourceAlphaBlendFactor`
- behaves as `MTLBlendFactorZero` for `destinationRGBBlendFactor` and `destinationAlphaBlendFactor`

---

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