Swift SceneKit 也不是圆球体

Question

我添加了一个球体节点，但是当我旋转节点（由于接触）时，球体的边缘不平滑。有办法解决这个问题吗？

在X轴上旋转时一切都很好，但在Y球体上不平滑:(

sceneView.scene = scene

cameraOrbit = SCNNode()
cameraNode = SCNNode()
camera = SCNCamera()

// camera stuff
camera.usesOrthographicProjection = true
camera.orthographicScale = 5
camera.zNear = 1
camera.zFar = 100

cameraNode.position = SCNVector3(x: 0, y: 0, z: 70)
cameraNode.camera = camera
cameraOrbit = SCNNode()
cameraOrbit.addChildNode(cameraNode)
scene.rootNode.addChildNode(cameraNode)

let sphere = SCNSphere(radius: 2)
sphere.firstMaterial?.diffuse.contents = UIColor.red
let earthNode = SCNNode(geometry: sphere)
earthNode.name = "sphere"
earthNode.geometry?.materials = [blueMaterial]
scene.rootNode.addChildNode(earthNode)
earthNode.rotation = SCNVector4(0, 1, 0, 0)

let lightNode = SCNNode()
let light = SCNLight()
light.type = .ambient
light.intensity = 200
lightNode.light = light
scene.rootNode.addChildNode(lightNode)

sceneView.allowsCameraControl = true
sceneView.backgroundColor = UIColor.clear
sceneView.cameraControlConfiguration.allowsTranslation = true
sceneView.cameraControlConfiguration.rotationSensitivity = 0.4

Answer 1

您还可以细分几何图形：

node.geometry.subdivisionlevel = 2 // Don't make that more than 3!

注意：这将消耗更多内存，因为几何体现在包含更多顶点（网格数据）

Swift SceneKit 也不是圆球体

Swift SceneKit nor rounded sphere

scenekit

swift