MTTransitions

Transitions ports from GL-Transitions to Metal.

Features

• Up to 76 transitions
• Image Transitions
• UIView Transitions
• UIViewController Push Transtions
• UIViewController Present Transitions
• Video Merge Transitions
• Create video from images with transitions
• Create video from images with transitions and background music

Requirements

• iOS 10.0 +
• Xcode 11.0 +
• Swift 5.0 +

Transitions

Support Following Transitions:

• MTAngularTransition
• MTBounceTransition
• MTBowTieHorizontalTransition
• MTBowTieVerticalTransition
• MTBurnTransition
• MTButterflyWaveScrawlerTransition
• MTCannabisleafTransition
• MTCircleCropTransition
• MTCircleTransition
• MTCircleOpenTransition
• MTColorPhaseTransition
• MTColourDistanceTransition
• MTCrazyParametricFunTransition
• MTCrossZoomTransition
• MTCrossHatchTransition
• MTCrossWarpTransition
• MTCubeTransition
• MTDirectionalTransition
• MTDirectionalWarpTransition
• MTDirectionalWipeTransition
• MTDisplacementTransition
• MTDoomScreenTransition
• MTDoorwayTransition
• MTDreamyTransition
• MTDreamyZoomTransition
• MTFadeTransition
• MTFadeColorTransition
• MTFadegrayscaleTransition
• MTFlyeyeTransition
• MTGlitchDisplaceTransition
• MTGlitchMemoriesTransition
• MTGridFlipTransition
• MTHeartTransition
• MTHexagonalizeTransition
• MTInvertedPageCurlTransition
• MTKaleidoScopeTransition
• MTLinearBlurTransition
• MTLumaTransition
• MTLuminanceMeltTransition
• MTMorphTransition
• MTMosaicTransition
• MTMultiplyBlendTransition
• MTPerlinTransition
• MTPinwheelTransition
• MTPixelizeTransition
• MTPolarFunctionTransition
• MTPolkaDotsCurtainTransition
• MTRadialTransition
• MTRandomSquaresTransition
• MTRippleTransition
• MTRotateScaleFadeTransition
• MTSimpleZoomTransition
• MTSquaresWireTransition
• MTSqueezeTransition
• MTStereoViewerTransition
• MTSwapTransition
• MTSwirlTransition
• MTTangentMotionBlurTransition
• MTTVStaticTransition
• MTUndulatingBurnOutTransition
• MTWaterDropTransition
• MTWindTransition
• MTWindowBlindsTransition
• MTWindowSliceTransition
• MTWipeDownTransition
• MTWipeLeftTransition
• MTWipeRightTransition
• MTWipeUpTransition
• MTZoomInCirclesTransition

Installation

MTTransitions is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod MTTransitions

Get Started

Each transition requires two input MTIImage. Image should be .oriented(.downMirrored).

import MTTransitions
lettransition=MTBounceTransition()
transition.inputImage =<from Image>
transition.destImage =<to Image>
// animate progress from 0.0 to 1.0
imageView.image = transition.outputImage

UIView Transition

leteffect=MTPerlinTransition()MTTransition.transition(with: view, effect: effect, animations:{
// Do your animation to your view
}){(_)in
// Transition completed
}

UIViewController Push Transition

classPushAViewController:UIViewController{privatelettransition=MTViewControllerTransition(transition:MTBurnTransition())
// ...
}extensionPushAViewController:UINavigationControllerDelegate{func navigationController(_ navigationController:UINavigationController, animationControllerFor operation:UINavigationController.Operation, from fromVC:UIViewController, to toVC:UIViewController)->UIViewControllerAnimatedTransitioning?{if operation ==.push {return transition
}returnnil}}

UIViewController Present Transition

class PresentAViewController:UIViewController{
// ...
letvc=PresentBViewController()
vc.modalPresentationStyle =.fullScreen
vc.transitioningDelegate = self
present(vc, animated:true, completion:nil)}extensionPresentAViewController:UIViewControllerTransitioningDelegate{func animationController(forDismissed dismissed:UIViewController)->UIViewControllerAnimatedTransitioning?{return transtion
}func animationController(forPresented presented:UIViewController, presenting:UIViewController, source:UIViewController)->UIViewControllerAnimatedTransitioning?{return transtion
}}

Video Transition

MTTransitions also support merging videos with transitions.

• Support merge multiple video files
• Support multiple transition effects
• Support different multiple render size.
• Support passthrough transition.

// pick one transtion effect
leteffect=MTTransition.Effect.wipeLeft
letduration=CMTimeMakeWithSeconds(2.0, preferredTimescale:1000)try? videoTransition.merge(clips,
effect: effect,
transitionDuration: duration){[weak self] result inguardlet self =selfelse{return}letplayerItem=AVPlayerItem(asset: result.composition)
playerItem.videoComposition = result.videoComposition
self.player.seek(to:.zero)self.player.replaceCurrentItem(with: playerItem)self.player.play()}

Please refer VideoTransitionSampleViewController and MultipleVideoTransitionsViewController for more details.

Create Video From Images

MTMovieMaker support create video from a sequence images with transitions. You can also pass a local audio file url to MTMovieMaker to create background music.

letfileURL=URL(fileURLWithPath: path)
movieMaker =MTMovieMaker(outputURL: fileURL)do{tryMTMovieMaker?.createVideo(with: images, effects: effects){ result inswitch result {case.success(let url):print(url)case.failure(let error):print(error)}}}catch{print(error)}