小编Kra*_*thi的帖子

我通过使用AR套件识别图像,当检测图像时我需要在所呈现的场景上显示和播放视频(如检测到的图像上方)？

lazy  var fadeAndSpinAction: SCNAction = {
    return .sequence([
        .fadeIn(duration: fadeDuration),
        .rotateBy(x: 0, y: 0, z: CGFloat.pi * 360 / 180, duration: rotateDuration),
        .wait(duration: waitDuration),
        .fadeOut(duration: fadeDuration)
        ])
}()

lazy var fadeAction: SCNAction = {
    return .sequence([
        .fadeOpacity(by: 0.8, duration: fadeDuration),
        .wait(duration: waitDuration),
        .fadeOut(duration: fadeDuration)
        ])
}()

lazy var fishNode: SCNNode = {
    guard let scene = SCNScene(named: "Catfish1.scn"),
        let node = scene.rootNode.childNode(withName: "Catfish1", recursively: false) else { return SCNNode() }
    let scaleFactor = 0.005
    node.scale = SCNVector3(scaleFactor, scaleFactor, scaleFactor) …