arkit

This is the function that I use to display object on the plane surface. private func loadScene(path: String) -> SCNNode { let spotLight = SCNLight() spotLight.type = SCNLight.LightType.probe spotLight.spotInnerAngle = 30.0 spotLight.spotOuterAngle = 80.0 spotLight.castsShadow = true let result = SCNNode() result.light = spotLight result.position = SCNVector3(-10.0, 20.0, 10.5) result.addChildNode(result) let scene = SCNScene(named: path)! for node in scene.rootNode.childNodes { result.addChildNode(node) } return result } I want to display shadow on the plane surface like this image. When I set

Not only is using column-major vs row-major counter-intuitive, Apple's documentation on "Working with Matrices" further exacerbates the confusion by their examples of "constructing" a "Translate Matrix" and a "Rotation Matrix" in 2D. Translate Matrix Per Apple's Documentation () Translate A translate matrix takes the following form: 1 0 0 0 1 0 tx ty 1 The simd library provides constants for identity matrices (matrices with ones along the diagonal, and zeros elsewhere). The 3 x 3 Float identity matrix is matrix_identity_float3x3. The following function returns a simd_float3x3 matrix using the

I try to add a B&W filter to the camera images of an ARSCNView, then render colored AR objects over it. I'am almost there with the following code added to the beginning of - (void)renderer:(id<SCNSceneRenderer>)aRenderer updateAtTime:(NSTimeInterval)time CVPixelBufferRef bg=self.sceneView.session.currentFrame.capturedImage; if(bg){ char* k1 = CVPixelBufferGetBaseAddressOfPlane(bg, 1); if(k1){ size_t x1 = CVPixelBufferGetWidthOfPlane(bg, 1); size_t y1 = CVPixelBufferGetHeightOfPlane(bg, 1); memset(k1, 128, x1*y1*2); } } This works really fast on mobile, but here's the thing: sometimes a colored

Using ARWorldTrackingSessionConfiguration get and error on iPhone 6 plus Unable to run the session, configuration is not supported on this device What can it be? Krunal Here is Apple's document for ARKit and device support ARKit requires an iOS device with an A9 or later processor. To make your app available only on devices supporting ARKit, use the arkit key in the UIRequiredDeviceCapabilities section of your app's Info.plist. If augmented reality is a secondary feature of your app, use the isSupported property to determine whether the current device supports the session configuration you

I have a floor node , on which I need to cast shadow from directional light . This node needs to be transparent (used in AR environment). And this works fine when I use ARKit , but the same setup using SceneKit shows no shadow or reflection. How can I cast a shadow in SceneKit like this? The problem with SceneKit is caused by the fact, that I set sceneView.backgroundColor = .clear - but I need this behaviour in this app. Can this be somehow avoided? Sample code, demonstrating this issue (works only on device, not in simulator): @IBOutlet weak var sceneView: SCNView! { didSet { sceneView.scene