How do I use SceneKit for 3D graphics in Swift?

SceneKit is a high-level 3D graphics framework that you can use in your Swift applications to create 3D graphics. It provides an easy-to-use interface for rendering 3D scenes, handling animations, and managing lights, cameras, and other scene elements.

To get started with SceneKit in Swift, you need to set up a basic scene, add cameras, lights, and objects, and then render your scene using a SCNView. Below is a simple example demonstrating how to create a basic 3D scene with a rotating cube.

import UIKit import SceneKit class ViewController: UIViewController { var sceneView: SCNView! override func viewDidLoad() { super.viewDidLoad() // Create a new SCNView sceneView = SCNView(frame: self.view.bounds) self.view.addSubview(sceneView) // Create a new scene let scene = SCNScene() sceneView.scene = scene // Create a box let box = SCNBox(width: 1.0, height: 1.0, length: 1.0, chamferRadius: 0.0) let boxNode = SCNNode(geometry: box) // Set the box's position and add it to the scene boxNode.position = SCNVector3(0, 0, 0) scene.rootNode.addChildNode(boxNode) // Add a camera let cameraNode = SCNNode() cameraNode.camera = SCNCamera() cameraNode.position = SCNVector3(x: 0, y: 5, z: 10) scene.rootNode.addChildNode(cameraNode) // Add light let lightNode = SCNNode() lightNode.light = SCNLight() lightNode.light?.type = .omni lightNode.position = SCNVector3(x: 0, y: 10, z: 10) scene.rootNode.addChildNode(lightNode) // Rotate the box let rotation = SCNAction.rotate(by: CGFloat.pi, around: SCNVector3(0, 1, 0), duration: 2) let repeatAction = SCNAction.repeatForever(rotation) boxNode.runAction(repeatAction) // Enable default lighting sceneView.autoenablesDefaultLighting = true // Set other SCNView properties sceneView.allowsCameraControl = true sceneView.showsStatistics = true sceneView.backgroundColor = UIColor.black } }

SceneKit 3D graphics Swift iOS development SCNView SCNScene 3D scene.

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