title: How to generate multiple stars using CIStarShineGenerator?
body: <p>I'm looking for efficient way to generate multiple stars at random places (for example 10-15 of them). With this code below I can easily achieve one star but my question would be how to generate more than one star.</p>
  <pre><code>let filter = StarShineGenerator()
  filter.center = CIVector(values: [CGFloat.random(in: 50.0...finalImage.size.width), CGFloat.random(in: 50.0...finalImage.size.height)], count: 2)
  let ciFilter = filter.filter()
  guard let ciFilter = ciFilter else { return }
  let result = ciFilter.outputImage
  guard let result = result else { return }
  finalImage = UIImage(cgImage: context.createCGImage(result, from: CIImage(image: finalImage)!.extent)!)
  </code></pre>