---
title: particleAlpha
framework: spritekit
role: symbol
role_heading: Instance Property
path: spritekit/skemitternode/particlealpha
---

# particleAlpha

The average starting alpha value for a particle.

## Declaration

```swift
var particleAlpha: CGFloat { get set }
```

## Discussion

Discussion The particle alpha value is equivalent to the alpha property of the SKNode class. The alpha component of the color that results from the texture and color blending state is multiplied by a particle’s alpha value. The resulting particle color is then blended with the parent’s framebuffer. The default value is 1.0.

## See Also

### Blending Particles with the Framebuffer

- [particleBlendMode](spritekit/skemitternode/particleblendmode.md)
- [particleAlphaSequence](spritekit/skemitternode/particlealphasequence.md)
- [particleAlphaRange](spritekit/skemitternode/particlealpharange.md)
- [particleAlphaSpeed](spritekit/skemitternode/particlealphaspeed.md)