How can I create a masking effect that uses alpha instead of a hard edge when using SpriteKit?
I am aware of SKCropNode, but this is not what I need. I would like to create the equivalent of masking in Photoshop, or Illustrator where either opacity or greyscale is used to determine the transparency of the masked image.
Initially, I would like to use this to create a wipe effect, but there are various uses in the future.
I need it to be possible to animate as well.