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Adobe AIR + ARKit

ARKit Adobe Air Native Extension for iOS 11.0+ This ANE provides bindings for the ARKit API

ASDocs Documentation

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Prerequisites

You will need:

The ANE + Dependencies

Change directory into the example folder eg

cd /MyMac/dev/AIR/AR-ANE/example

Run the "air-tools" command (You will need AIR-Tools installed)

air-tools install

NEW This tool now:

  1. Downloads the AdMobANE and dependencies.
  2. Applies all required Android Manifest, InfoAdditons and Entitlements to your app.xml. See air package.json

N.B. You must use a Mac to build an iOS app using this ANE. Windows is NOT supported.

iOS: Packaging Frameworks Dependencies

The iOS ANEs are written in Swift. We need to package the Swift libraries (along with a couple of dynamic frameworks) with our AIR app

https://raw.githubusercontent.com/wiki/tuarua/Firebase-ANE/images/frameworks-package.png

Getting Started

Firstly, familiarise yourself with the concepts of Apple's ARKit. This ANE is at its core a binding for the ARKit APIs.

Usage

arkit = ARANE.arkit;
if (!arkit.isSupported) {
    trace("ARKIT is NOT Supported on this device");
    return;
}

arkit.view3D.showsStatistics = false;
arkit.view3D.automaticallyUpdatesLighting = true;
arkit.view3D.antialiasingMode = AntialiasingMode.multisampling4X;
arkit.view3D.init();
var config:WorldTrackingConfiguration = new WorldTrackingConfiguration();
if (arkit.iosVersion >= 11.3) {
    config.planeDetection = [PlaneDetection.horizontal, PlaneDetection.vertical];
} else {
    config.planeDetection = [PlaneDetection.horizontal];
}
arkit.view3D.session.run(config, [RunOptions.resetTracking, RunOptions.removeExistingAnchors]);

Geometries

The following geometries based on their SCNKit equivalents are available: Box, Sphere, Capsule, Cone, Cylinder, Plane, Pyramid, Torus, Tube

var cone:Cone = new Cone(0, 0.05, 0.1);
var node:Node = new Node(cone);
arkit.view3D.scene.rootNode.addChildNode(node);

Materials

Materials can be supplied as:
ARGB uint
BitmapData
String path to image file

box.firstMaterial.diffuse.contents = ColorARGB.RED;

sphere.firstMaterial.diffuse.contents = "materials/globe.png";

//supply 6 materials for 6 sides of box
box.materials = new <Material>[redMat, greenMat, blueMat, yellowMat, brownMat, whiteMat];

Physics

var box:Box = new Box(0.1, 0.1, 0.1);
box.firstMaterial.diffuse.contents = ColorARGB.ORANGE;
var boxNode:Node = new Node(box);
var boxShape:PhysicsShape = new PhysicsShape(box);
var physicsBody:PhysicsBody = new PhysicsBody(PhysicsBodyType.dynamic, boxShape);
physicsBody.allowsResting = true;

boxNode.physicsBody = physicsBody;
boxNode.position = new Vector3D(0, 0.5, 0);

arkit.view3D.scene.rootNode.addChildNode(boxNode);

Detecting Planes

arkit = ARANE.arkit;
if (arkit.iosVersion >= 11.3) {
    config.planeDetection = [PlaneDetection.horizontal, PlaneDetection.vertical];
} else {
    config.planeDetection = [PlaneDetection.horizontal];
}
arkit.addEventListener(PlaneDetectedEvent.ON_PLANE_DETECTED, onPlaneDetected);

private function onPlaneDetected(event:PlaneDetectedEvent):void {
    var planeAnchor:PlaneAnchor = event.anchor;
    var node:Node = event.node;
    
    var plane:Box = new Box(planeAnchor.extent.x, planeAnchor.extent.z, 0);
    var gridTexture:String = "materials/grid.png";
    plane.firstMaterial.diffuse.contents = gridTexture;
    
    var planeNode:Node = new Node(plane);
    planeNode.position = new Vector3D(planeAnchor.center.x, 0, planeAnchor.center.z)
    var boxShape:PhysicsShape = new PhysicsShape(plane);
    planeNode.physicsBody = new PhysicsBody(PhysicsBodyType.static, boxShape);
    planeNode.eulerAngles = new Vector3D(-Math.PI / 2, 0, 0);
    node.addChildNode(planeNode);
}

Camera Tracking

arkit = ARANE.arkit;
arkit.addEventListener(CameraTrackingEvent.ON_STATE_CHANGE, onCameraTrackingStateChange);

private function onCameraTrackingStateChange(event:CameraTrackingEvent):void {
    switch (event.state) {
        case TrackingState.notAvailable:
            break;
        case TrackingState.normal:
            break;
        case TrackingState.limited:
            switch (event.reason) {
                case TrackingStateReason.excessiveMotion:
                    break;
                case TrackingStateReason.initializing:
                    break;
                case TrackingStateReason.insufficientFeatures:
                    break;
                case TrackingStateReason.relocalizing:
                    break;
            }
            break;
    }
}

Detecting Touches

arkit = ARANE.arkit;
arkit.addEventListener(TapEvent.ON_SCENE3D_TAP, onSceneTapped);
private function onSceneTapped(event:TapEvent):void {
    if (event.location) {
        // look for planes
        var arHitTestResult:ARHitTestResult = arkit.view3D.hitTest3D(event.location, [HitTestResultType.existingPlaneUsingExtent]);
        if (arHitTestResult) {
            // plane tapped
        }
        
        var hitTestResult:HitTestResult = arkit.view3D.hitTest(event.location, new HitTestOptions());
        trace("hitTestResult", hitTestResult);
        if (hitTestResult) {
            // node tapped on
        }
    }
}

Running on Simulator

ARKit won't run on the simulator

Running on Device

The example project can be run on the device from IntelliJ using AIR 32.

Issues

The Issues section is for bugs and API requests only.
Use the supplied template or the ticket will be closed.
Paid Premium support is available.

Contributing

If you have knowledge of ARKit contributions are welcome. This includes adding documentation, sample code and Scenekit models.
Likewise, sponsorship or donations will go a long way to pushing the ANE further along.

Prerequisites

You will need:

Task List

References