要使用ARKit进行面部追踪和物理渲染,可以按照以下步骤进行操作:
import ARKit
import SceneKit
let arView = ARSCNView()
arView.delegate = self
arView.session.delegate = self
let configuration = ARFaceTrackingConfiguration()
arView.session.run(configuration)
extension ViewController: ARSCNViewDelegate, ARSessionDelegate {
func renderer(_ renderer: SCNSceneRenderer, didAdd node: SCNNode, for anchor: ARAnchor) {
guard let faceAnchor = anchor as? ARFaceAnchor else { return }
// 创建面部几何体
let faceGeometry = ARSCNFaceGeometry(device: arView.device!)
node.addChildNode(faceGeometry)
// 创建面部材质
let material = SCNMaterial()
material.lightingModel = .physicallyBased
faceGeometry.firstMaterial = material
// 创建面部渲染器
let faceNode = SCNNode(geometry: faceGeometry)
node.addChildNode(faceNode)
}
func renderer(_ renderer: SCNSceneRenderer, didUpdate node: SCNNode, for anchor: ARAnchor) {
guard let faceAnchor = anchor as? ARFaceAnchor, let faceGeometry = node.geometry as? ARSCNFaceGeometry else { return }
// 更新面部几何体
faceGeometry.update(from: faceAnchor.geometry)
}
}
let sceneView = SCNView(frame: CGRect(x: 0, y: 0, width: view.frame.width, height: view.frame.height))
view.addSubview(sceneView)
let modelScene = SCNScene(named: "model.scn")!
let modelNode = modelScene.rootNode.childNode(withName: "model", recursively: true)!
sceneView.scene.rootNode.addChildNode(modelNode)
请注意,以上代码示例中的“model.scn”和“model”分别是3D模型文件和模型节点的名称,您需要将其替换为自己的模型文件和节点名称。
希望这可以帮助您开始使用ARKit进行面部追踪和物理渲染!