如何从.usdz创建SCNNode? [英] How to create a SCNNode from a .usdz?

问题描述

我已经下载了Apple提供的.usdz模型: https://developer.apple.com/arkit/gallery/

I have downloaded the .usdz models provided by Apple: https://developer.apple.com/arkit/gallery/

但是现在，我想使用这些模型之一创建一个SCNNode，所以我这样做是为了获得该节点:

But now, I want to create a SCNNode with one of these models, so I am doing this to obtain the node:

guard let urlPath = Bundle.main.url(forResource: "retrotv", withExtension: "usdz") else {
    return
}
let mdlAsset = MDLAsset(url: urlPath)
let modelRootNode = SCNScene(mdlAsset: mdlAsset).rootNode

然后将其添加到场景中，结果是这样的:

Then I add it to the scene and the result is this:

为什么没有纹理?

我将下载的.usdz文件保存到项目目录中的文件夹中，如您所见:

I have the downloaded .usdz files into a folder in my project directory as you can see:

推荐答案

添加.USDZ对象的正确方法实际上是使用文件的URL创建场景:

The correct way to add the .USDZ object is actually creating the scene with the file's URL:

 let scene = try! SCNScene(url: usdzURL, options: [.checkConsistency: true])

甚至通过参考节点进行创建:

Or even creating via Reference Node:

 let referenceNode = SCNReferenceNode(url: usdzURL)
 referenceNode.load()

这篇关于如何从.usdz创建SCNNode?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！