Post not yet marked as solved
I would like to make text change size as I move towards/away from the image anchor I created.
as I move towards the image, the text gets smaller
as I move away from the image, the gets bigger
My current function to create the text is below:
func addTitleToAnchor(text:String, color:SimpleMaterial.Color, isMetallic:Bool, anchor: AnchorEntity, height: Float) {
let mesh = MeshResource.generateText(
text,
extrusionDepth: 0.02,
font: .init(descriptor: .init(name: "Helvetica", size: 1), size: 1),
containerFrame: .zero,
alignment: .center,
lineBreakMode: .byWordWrapping)
let material = SimpleMaterial(color: color, isMetallic: isMetallic)
let entity = ModelEntity(mesh: mesh, materials: [material])
entity.name = "title"
entity.setScale(SIMD3<Float>(0.015 ,0.015,0.015), relativeTo: anchor)
anchor.addChild(entity)
entity.setPosition(SIMD3<Float>(-0.05, 0.03, -height), relativeTo: anchor)
entity.transform.rotation = simd_quatf(angle: -.pi/2, axis: [1,0,0])
return
}
I am wondering how I can edit the func session(_ session: ARSession, didAdd anchors: [ARAnchor]) in the arView.session.delegate. I would like to run a function when the image is recognized.
struct ARViewWrapper: UIViewRepresentable {
let title: String
typealias UIViewType = ARView
func makeUIView(context: Context) -> ARView {
print("detected?")
let arView = ARView(frame: .zero, cameraMode: .ar, automaticallyConfigureSession: true)
let target = AnchorEntity(.image(group: "AR Resources", name: "qr1"))
arView.scene.anchors.append(target)
addARObjs(anchor: target, title: title, planeColor: .blue)
return arView
}
func updateUIView(_ uiView: ARView, context: Context) {
print("update!")
return()
}
}
Any and all guidance is appreciated! Thanks in advance.
Post not yet marked as solved
How do I detect multiple instances of the same ARReferenceObject using RealityKit. I can detect one of the objects, but when I move the camera to a second instance of the object, the anchoring persists on the first instance of the object.
Ideally, I would like to remove the anchor from the first object, then create a new anchoring on the second one.
Post not yet marked as solved
I would like to stop tracking an object that has been anchored with AnchorEntity(.object(group: "AR Resources", name: "obj")) when the camera pans away from it.
I almost want to the remove the anchor from ARView.scene.anchors? But I am not sure what the best way to d that is. It might be in one of the following:
func session(_ session: ARSession, didUpdate anchors: [ARAnchor])
or
func session(_ session: ARSession, didAdd anchors: [ARAnchor])
Thanks in advance for the help!
Post not yet marked as solved
Below is my function that adds text to an Anchor. In my case the Anchor is an image anchor and I am wondering how to remove the lag when the text is added.
func addTextToAnchor(anchor: AnchorEntity, text:String, fontSize: CGFloat, color:SimpleMaterial.Color, x: Float, y: Float, z: Float, scale: SIMD3<Float>) {
let mesh = MeshResource.generateText(
text,
extrusionDepth: 0.0,
font: .init(descriptor: .init(name: "Consolas", size: fontSize), size: fontSize),
containerFrame: .zero,
alignment: .center,
lineBreakMode: .byWordWrapping)
let position = SIMD3<Float>(x,y,z)
let material = UnlitMaterial(color: color)
let entity = ModelEntity(mesh: mesh, materials: [material])
entity.name = "title"
entity.setScale(scale, relativeTo: anchor)
anchor.addChild(entity)
entity.position = position
entity.transform.rotation = simd_quatf(angle: -.pi/2, axis: [1,0,0])
return
}
Post not yet marked as solved
I am trying to detect and object using RealityKit's AnchorEntity. Detecting images works perfectly, but when I try to detect an object I can't find it.
Works great:
AnchorEntity(.image(group: "AR Resources", name: "BE"))
Does not work:
AnchorEntity(.object(group: "AR Resources", name: "bottle"))
I used the app below to scan an object and create a .arobject file:
https://developer.apple.com/documentation/arkit/scanning_and_detecting_3d_objects
Other information: I am using SwiftUI to wrap an ARView in a UIViewRepresentable
I created a Coordinator to be the ARSessionDelegate
I am using an iPhone 8 on iOS 13.6
How do I change the text of a MeshResource.generateText after I have created it and added it to an anchor?
Post not yet marked as solved
I am looking to run a function when an a reference image is detected in an ARView. I am using RealityKit.
The process would be as follows: create ARView with image detection
detect image
run function to fetch data (changes based on time image is found at)
produce AR object in ARView using data retrieved
How do I run the function to fetch data?
Post not yet marked as solved
I am building an iOS app using RealityKit. I would like to read a QR Code within ARView but cannot find any documentation/tutorials on it.
Any advice/guidance on doing this would be much appreciated! Thanks in advance.
LT13.