i read the blog that accompanied this repo about how this animation was created. i saw you originally wrote opengl one it in objc. is there any chance you have that code still and are willing to share it? i love this transition but am not going to use any swift in my current project and plan on trying to rewrite this in objc so it would speed things up tremendously for me.

sorry if this isnt appropriate avenue to ask. didnt see a comment section on the blog:

Any chance you could add the necessary decorations to expose this lib to Obj-C? That would allow us to create a plugin for this module for github.com/nativescript.

Some improvement for stars animation on Intro screen, like flying through stars array:

    func randomizeEmitterPosition() {
        let sizeWidth = 1.0*self.bounds.size.height
        let radius =  0 + CGFloat(arc4random()) % sizeWidth;
        emitter.emitterSize = CGSizeMake(radius, radius)
        particle.birthRate = 10 + sqrt(Float(radius))
    }

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https://camo.githubusercontent.com/012ac6305c18bc9484d859343d027d3edb762669/68747470733a2f2f79616c616e7469732d636f6d2e73332e616d617a6f6e6177732e636f6d2f75706c6f6164732f636b656469746f722f70696374757265732f34392f636f6e74656e745f737461725f776172732d73686f745f5f315f2e676966

I try make the snapshots in dismiss animation have blurEffect and corner. let snapshot = (fromViewSnapshot!.resizableSnapshotView(from: snapshotRegion, afterScreenUpdates: false, withCapInsets: UIEdgeInsets.zero))!

blurEffect: I just add UIVisualEffectView to fromView and then let fromViewSnapshot = fromView?.snapshotView(afterScreenUpdates: true) this work well. all snapshot blurEffect.

but make snapshot corner I fail.

first i just use this snapshot.layer.cornerRadius = width / 2 snapshot.layer.masksToBounds = true but this have performance problems.

I try to solve this by use UIGraphicsGetCurrentContext clip the snapshot. by use first. clip snapshot to image like http://stackoverflow.com/questions/25444609/screenshot-in-swift-ios. then clip image. and add image to imageview. at last. add it to containerView but it not work. I do not know where is wrong.

sorry about my poor English.

I noticed that on the Android implementation of this lib, there is an API for triggering the animation on any view...

mTilesFrameLayout.startAnimation();

Is it possible to do the same on iOS for a given View Controller? Instead of just attaching it to the segue.

Burke