iPhone - having a Ripple effect on a UIImageView

Question

I am attempting to create a ripple like effect on an imageView when it is touched down on, however I do not understand how to implement OpenGL for windows and porting it to

Answer 1

@Rony's CATransition Ripple in Swift

let animation = CATransition()
animation.delegate = self
animation.duration = 2
animation.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
animation.type = "rippleEffect"
myView.layer.addAnimation(animation, forKey: nil)

(This is my first post, so idk if I'm doing it right :D)