我正在尝试使用SceneKit在ARKit中缩放一把三维椅子模型。以下是我的捏合手势代码:
@objc func pinched(recognizer :UIPinchGestureRecognizer) {
var deltaScale :CGFloat = 0.0
deltaScale = 1 - self.lastScale - recognizer.scale
print(recognizer.scale)
let sceneView = recognizer.view as! ARSCNView
let touchPoint = recognizer.location(in: sceneView)
let scnHitTestResults = self.sceneView.hitTest(touchPoint, options: nil)
if let hitTestResult = scnHitTestResults.first {
let chairNode = hitTestResult.node
chairNode.scale = SCNVector3(deltaScale,deltaScale,deltaScale)
self.lastScale = recognizer.scale
}
}
它可以缩放,但由于某种奇怪的原因,它会将3D模型倒置。有什么想法吗?此外,尽管缩放功能可用,但在使用捏合手势进行多个进程时,缩放不够流畅,而且从不同的比例因子跳跃。