Sprite-Kit animations — using SKTextureFilteringMode.nearest - swift

Question

I'm trying to apply SKTextureFilteringMode.nearest to all the frames in my animation.
Previously, when I was using a non-animated sprite, the following worked:
super.init(texture: texture, color: .clear, size: playerSize)
self.texture?.filteringMode = SKTextureFilteringMode.nearest;
Now I've added animation frames (see full code below), this doesn't work — the sprite is blurry. I can't work out how to add this filtering mode to all frames.
class Player: SKSpriteNode {
private var playerAtlas: SKTextureAtlas {
return SKTextureAtlas(named: "Player")
}
private var playerRunTextures: [SKTexture] {
return [
playerAtlas.textureNamed("run1"),
playerAtlas.textureNamed("run2"),
playerAtlas.textureNamed("run3"),
playerAtlas.textureNamed("run4")
]
}
func startRunAnimation() {
let runAnimation = SKAction.animate(with: playerRunTextures, timePerFrame: 0.1)
self.run(SKAction.repeatForever(runAnimation), withKey: "playerRunAnimation")
}
init() {
let texture = SKTexture(imageNamed: "player")
let playerSize = CGSize(width: 30, height: 50)
super.init(texture: texture, color: .clear, size: playerSize)
self.texture?.filteringMode = SKTextureFilteringMode.nearest;
self.position = CGPoint(x: 100, y: 400)
self.startRunAnimation()
}
...

Answer 1

set SKTextureFilteringMode for each texture when you create the sprite animation array:
private var playerRunTextures: [SKTexture] {
let spritesheet = [
"run1",
"run2",
"run3",
"run4"
]
return spritesheet.map { name in
let t1 = playerAtlas.textureNamed(name)
t1.filteringMode = .nearest //<--- for each texture in the atlas
return t1
}
}