ios – ARKit：将3D对象放置在图像上方

概述我正在尝试在参考图像上正确添加3D对象.要在现实世界中的图像上添加3D对象,我正在使用imageAnchor.transform属性,如下所示. func renderer(_ renderer: SCNSceneRenderer, didAdd node: SCNNode, for anchor: ARAnchor) { guard let imageAnchor = anchor a 我正在尝试在参考图像上正确添加3D对象.要在现实世界中的图像上添加3D对象,我正在使用imageAnchor.transform属性,如下所示.

func renderer(_ renderer: SCNSceneRenderer,dIDAdd node: SCNNode,for anchor: aranchor) {    guard let imageAnchor = anchor as? ARImageAnchor else { return }    let referenceImage = imageAnchor.referenceImage    updateQueue.async {          // Add a virtual cup at the position of the found image        self.virtualObject.addVirtualObjectWith(scenename: "cup.dae",childNodename: nil,position: SCNVector3(x: imageAnchor.transform.columns.3.x,y: imageAnchor.transform.columns.3.y,z: imageAnchor.transform.columns.3.z),recursively: true,imageAnchor: imageAnchor)    }}

问题是当我移动设备方向时,杯子将不能很好地保持在图像的中间位置.即使我删除图像,我也希望将杯子放在同一位置.我没有遇到问题,因为当您使用平面检测和命中测试添加对象时,还有一个用于飞机的aranchor.

更新05/14/2018

func addVirtualObjectWith(scenename: String,childNodename: String,objectname: String,position: SCNVector3,recursively: Bool,node: SCNNode?){    print("VirtualObject: Added virtual object with scene name: \(scenename)")    let scene = SCNScene(named: "art.scnassets/\(scenename)")!    var sceneNode = scene.rootNode.childNode(withname: childNodename,recursively: recursively)!    sceneNode.name = objectname    sceneNode.position = position    add(object: sceneNode,toNode: node)}func add(object: SCNNode,toNode: SCNNode?){    if toNode != nil {        toNode?.addChildNode(object)    }    else {        sceneVIEw.scene.rootNode.addChildNode(object)    }}

解决方法 我终于找到了解决方案,结果是在属性检查器中没有正确设置AR参考图像的大小.当尺寸不正确时,图像的锚点将不稳定.

总结

以上是内存溢出为你收集整理的ios – ARKit：将3D对象放置在图像上方全部内容，希望文章能够帮你解决ios – ARKit：将3D对象放置在图像上方所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。