如何模糊除了2个节点之外的所有东西。Spritekit(斯威夫特)

I'd like to blur the background of my game when

我想把我的游戏背景弄模糊

self.view?.scene?.paused = true

But the the button and the paused label (both SKSpriteNode's) should not be blur. they all have different Z-index values. The scene is paused when the button node is pressed and resumed when the button is pressed again.

但是按钮和暂停标签(两个SKSpriteNode)不应该是模糊的。它们都有不同的z指数值。当按钮节点被按下时，场景将被暂停;当按钮再次被按下时，场景将被恢复。

I cant find a way to achieve this in Swift. i found some suggestions that use SKEffectNode?

我找不到一种方法能在短时间内实现这一点。我发现了一些使用SKEffectNode的建议?

1 个解决方案

#1

The basic steps...

的基本步骤……

Create an SKEffectsNode
创建一个SKEffectsNode
Create a CIGaussianBlur CIFilter
创建一个CIGaussianBlur CIFilter
Assign the filter to the effects node
将过滤器分配给效果节点
Add nodes to the effects node (child nodes will be blurred)
向effects节点添加节点(子节点将被模糊化)

and example code in Swift...

以及Swift代码示例……

// Create an effects node with a gaussian blur filter
let effectsNode = SKEffectNode()
let filter = CIFilter(name: "CIGaussianBlur")
// Set the blur amount. Adjust this to achieve the desired effect
let blurAmount = 10.0
filter?.setValue(blurAmount, forKey: kCIInputRadiusKey)

effectsNode.filter = filter
effectsNode.position = self.view!.center
effectsNode.blendMode = .alpha

// Create a sprite
let texture = SKTexture(imageNamed: "Spaceship")
let sprite = SKSpriteNode(texture: texture)

// Add the sprite to the effects node. Nodes added to the effects node
// will be blurred
effectsNode.addChild(sprite)
// Add the effects node to the scene
self.addChild(effectsNode)

// Create another sprite
let sprite2 = SKSpriteNode(texture: texture)
sprite2.position = self.view!.center
sprite2.size = CGSize(width:64, height:64);
sprite2.zPosition = 100

// Add the sprite to the scene. Nodes added to the scene won't be blurred
self.addChild(sprite2)

#1