adamnemecek / pixels

a Live Graphics Framework for iOS

Pixels

a Live Graphics Framework for iOS
powered by Metal

Content: Camera, Image, Video, Color, Circle, Rectangle, Polygon, Gradient and Noise.
Effects: Levels, Blur, Edge, Threshold, Quantize, Kaleidoscope, Twirl, Feedback, ChannelMix, ChromaKey, Lookup, Cross, Blend and Blends.

More info in the Docs.

Example 1

import Pixels

let camera = CameraPIX()

let levels = LevelsPIX()
levels.inPix = camera
levels.gamma = 2
levels.inverted = true

let blur = BlurPIX()
blur.inPix = levels
blur.radius = 100

let finalPix: PIX = blur
finalPix.view.frame = view.bounds
view.addSubview(finalPix.view)

Remeber to add NSCameraUsageDescription to your info.plist

Example 2

import Pixels

let cityImage = ImagePIX()
cityImage.image = UIImage(named: "city")

let supermanVideo = VideoPIX()
supermanVideo.load(fileNamed: "superman", withExtension: "mov")

let supermanKeyed = ChromaKeyPIX()
supermanKeyed.inPix = supermanVideo
supermanKeyed.keyColor = .green

let blend = BlendPIX()
blend.blendingMode = .over
blend.inPixA = cityImage
blend.inPixB = supermanKeyed

let finalPix: PIX = blend
finalPix.view.frame = view.bounds
view.addSubview(finalPix.view)

This is a representation of the Pixel Nodes Green Screen project.

File IO

You can find example files here.

import Pixels

let url = Bundle.main.url(forResource: "test", withExtension: "json")!
let json = try! String(contentsOf: url)
let project = try! Pixels.main.import(json: json)
    
let finalPix: PIX = project.pixs.last!
finalPix.view.frame = view.bounds
view.addSubview(finalPix.view)

To export just run Pixels.main.export() once you've created your PIXs.

Note that exporting resourses like image and video are not yet supported.

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Simulator not supported. Metal for iOS can only run on a physical iOS device.

Try out the effects in Pixel Nodes, a live graphics node editor for iPad, from which the core of Pixels was created.

by Anton Heestand, Hexagons.