import UIKit import GPUImage class ViewController: UIViewController { var videoCamera:GPUImageVideoCamera? var filter:GPUImagePixellateFilter? override func viewDidLoad() { super.viewDidLoad() videoCamera = GPUImageVideoCamera(sessionPreset: AVCaptureSessionPreset640x480, cameraPosition: .Back) videoCamera!.outputImageOrientation = .Portrait; filter = GPUImagePixellateFilter() videoCamera?.addTarget(filter) filter?.addTarget(self.view as! GPUImageView) videoCamera?.startCameraCapture() } }