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# SCNBlendMode

Modes that describe how SceneKit blends source colors rendered using a material with destination colors already in a rendering target, used by the [`blendMode`](/documentation/SceneKit/SCNMaterial/blendMode) property.

```
enum SCNBlendMode
```

## Topics

### Constants

[`SCNBlendModeAlpha`](/documentation/SceneKit/SCNBlendMode/alpha)

Blend by multiplying source and destination color values by their corresponding alpha values.

[`SCNBlendModeAdd`](/documentation/SceneKit/SCNBlendMode/add)

Blend by adding the source color to the destination color.

[`SCNBlendModeSubtract`](/documentation/SceneKit/SCNBlendMode/subtract)

Blend by subtracting the source color from the destination color.

[`SCNBlendModeMultiply`](/documentation/SceneKit/SCNBlendMode/multiply)

Blend by multiplying the source color with the background color.

[`SCNBlendModeScreen`](/documentation/SceneKit/SCNBlendMode/screen)

Blend by multiplying the inverse of the source color with the inverse of the destination color.

[`SCNBlendModeReplace`](/documentation/SceneKit/SCNBlendMode/replace)

Blend by replacing the destination color with the source color, ignoring alpha.

## Relationships

### Conforms To

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Equatable`](/documentation/Swift/Equatable)

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`Sendable`](/documentation/Swift/Sendable)

[`Hashable`](/documentation/Swift/Hashable)

---

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