I\'m experimenting with using SKShapeNodes in a game, and have found that antialiased SKShapeNodes are very blurry.
Without antialiasing:
Nope—that’s what “antialiasing” looks like on a shape node. You might be expecting to see something more like multisampling, but that’s not what SpriteKit is doing here. To get the smooth non-blurry lines you’re looking for you’ll have to draw your shapes into an image and then display that in an SKNode. You might also consider filing an enhancement request on the API.