我使用代码在 RealityKit 中添加图片纹理,效果很好。
var material = SimpleMaterial()
material.baseColor = try! .texture(.load(named: "image.jpg"))
我尝试使用此代码将视频文件添加为纹理,但它崩溃了!!!
guard let url = Bundle.main.url(forResource: "data", withExtension: "mp4") else {
return
}
material.baseColor = try! .texture(.load(contentsOf: url))
如何添加视频文件?
最佳答案
RealityKit视频素材
您可以在 RealityKit 2.0 及更高版本中使用视频素材
。 RealityKit v1.0 不支持视频素材。下面是一段代码,向您展示如何应用视频 Material :
方法 A
import SwiftUI
import RealityKit
import AVFoundation
struct ARViewContainer : UIViewRepresentable {
let arView = ARView(frame: .zero)
let anchor = AnchorEntity()
func makeUIView(context: Context) -> ARView {
anchor.position.z += 1.0
self.loadVideoMaterial()
return arView
}
func loadVideoMaterial() {
guard let pathToVideo = Bundle.main.path(forResource: "video",
ofType: "mp4")
else { return }
let videoURL = URL(fileURLWithPath: pathToVideo)
let avPlayer = AVPlayer(url: videoURL)
// 16:9 video
let mesh = MeshResource.generatePlane(width: 1.92, height: 1.08)
let material = VideoMaterial(avPlayer: avPlayer)
let planeModel = ModelEntity(mesh: mesh, materials: [material])
anchor.addChild(planeModel)
arView.scene.anchors.append(anchor)
avPlayer.volume = 0.05
avPlayer.play()
}
func updateUIView(_ view: ARView, context: Context) { }
}
struct ContentView : View {
var body: some View {
ARViewContainer().ignoresSafeArea()
}
}
此外,您可以通过这种方式添加 RealityKit 的 VideoMaterial
:
方法 B
// AVPLAYER and PlayerItem
let url = Bundle.main.url(forResource: "video", withExtension: "mp4")
let asset = AVAsset(url: url!)
let playerItem = AVPlayerItem(asset: asset)
let avPlayer = AVPlayer()
// ENTITY
let mesh = MeshResource.generateSphere(radius: 1)
let material = VideoMaterial(avPlayer: avPlayer)
let entity = ModelEntity(mesh: mesh, materials: [material])
// ANCHOR
let anchor = AnchorEntity(world: [0,0,-10])
anchor.addChild(entity)
arView.scene.anchors.append(anchor)
// PLAYBACK
avPlayer.replaceCurrentItem(with: playerItem)
avPlayer.play()
SceneKit视频素材
import SwiftUI
import SceneKit
import AVFoundation
struct VRViewContainer : UIViewRepresentable {
let sceneView = SCNView(frame: .zero)
func makeUIView(context: Context) -> SCNView {
sceneView.scene = SCNScene()
sceneView.backgroundColor = .black
sceneView.pointOfView?.position.z += 0.5
sceneView.isPlaying = true
self.loadVideoMaterial()
return sceneView
}
func loadVideoMaterial() {
guard let pathToVideo = Bundle.main.path(forResource: "video",
ofType: "mp4")
else { return }
let videoURL = URL(fileURLWithPath: pathToVideo)
let avPlayer = AVPlayer(url: videoURL)
// 16:9 video
let material = SCNMaterial()
material.diffuse.contents = avPlayer
let mesh = SCNPlane(width: 1.92, height: 1.08)
mesh.materials[0] = material
let planeModel = SCNNode(geometry: mesh)
sceneView.scene?.rootNode.addChildNode(planeModel)
avPlayer.volume = 0.05
avPlayer.play()
}
func updateUIView(_ view: SCNView, context: Context) { }
}
struct ContentView : View {
var body: some View {
VRViewContainer().ignoresSafeArea()
}
}
关于swift - RealityKit – 如何将视频素材添加到 ModelEntity?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/58131206/