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Questions tagged [usdz]

Universal Scene Description (USD) is a standard to promote interop and exchange of 3D scene descriptions between artists, developers and film studios. USDZ is a WYSIWYG editor developed by Apple and Pixar.

USDZ was introduced by Apple in WWDC 2018 as a WYSIWYG editor developed with Pixar, that allows developers to bring objects from Photoshop and Dimension into an AR environment.

Its features according to Pixar includes:

  • Robust schemas for interchange of geometry, shading, and skeletal deformation
  • High performance data retrieval and rendering, including powerful instancing features
  • The ability to package user-selectable content variations, natively
  • A sound architecture that is flexible enough to adapt to future needs
149 questions
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Running usd_from_gltf in an AWS Lambda

I'm trying to run Google's usd_from_gltf utility inside AWS Lambda, using a custom Docker image. The setup seems to be working locally but when executing the same Lambda in AWS, it fails for certain input files. Minimal…
Petr Broz
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Rendering White in USDZ files

Problem: USDZ files appear at about 80% white (light grey) even if perfect (0,0,0) is set on the texture files. Troubleshooting: with/without AO files, tested our own USDZs and also created a simple project in Reality Converter with a primitive…
Allen Wixted
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How to share .scn file as .usdz file?

I am creating an app where users can scan objects in 3D, I have a scene which I can easily save in documents directory and share it in .scn format, but I want to share this .scn file as .usdz file via UIActivityController. Basically I am using this…
ahmad rafiq
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swift , load model function can't play animation but load function I can play

let me=try! ModelEntity.load(named: filename) print("count is \(me.availableAnimations.count)" ) print("\(me.availableAnimations.count) model animation number model entity is ") above is that I use load function,…
Pedro J
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Converted file from threejs-usdzExporter not shown on Iphone

I have used THREE.js GLTFLoader to load glb file then I used USDZ Exporter to export it to usdz then when I tried to open it on browser it opened on saferi but didn't shown on arkit on object mode and on AR Mode appear above my head this is a simple…
Abd-ElrAhman A Abd-ElAleem
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What Does sketchfab or thangs use to show model?

I built a site that serves as a library for a specific category of 3d models. I currently use modelviewer to show glb files of 3d models but on mobile devices the performance isn't good. Often times the page will crash and randomly reload, and the…
user2002220
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How to convert fbx to usdz with textures

I am trying to convert fbx file with different textures to usdz but the converters just convert it to usdz without textures. Is there way to correctly convert fbx to usdz with all the textures
SomeoneAlt-86
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How to download and show a 3d obj model without having it on the user's phone?

I'd like to be able to do the same as in this post : let url = URL.init(string: "https://cloud.box.com/shared/static/ock9d81kakj91dz1x4ea.obj") let asset = MDLAsset(url: url! as URL) let object = asset.object(at: 0) let node = SCNNode(mdlObject:…
David
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Swift IOS Display AR QuickLook preview of downloaded usdz model

this is my first time trying to add an AR preview into an app (also my first time using the file system). I have been trying to implement a solution similar to that explained here https://developer.apple.com/forums/thread/126377 however one key…
Louis Davies
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Load 3d usdz model from network in Scenekit view does not work?

I am trying to load a 3d used model from network in my Scene kit view. The model gets downloaded properly and is saved in file but is not displayed in scene kit view. Here is my code. I am not getting any error. Not sure what exactly is the…
BraveEvidence
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AR Quick Look - Using double sided Materials in USDZ is not displayed

Using a double sided Material in USDZ Files is not displayed when opening the model in AR Quick Look. Only one side is displayed. Even when the model is displayed correctly when opening in Xcode or other tools. Seems like AR Quick Look is ignoring…
Peter Pohlmann
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Xcode Crashes When Trying to View USDZ File

I'm on a Mac mini M1, Big Sur 11.1, Xcode 12. I can add the USDZ file to the Xcode project hierarchy with no issue, but as soon as I click the USDZ file, the program crashes. Thereafter, every time I attempt to reopen the project in Xcode, Xcode…
sid
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How to programmatically export 3D mesh as USDZ using ModelIO?

Is it possible to programmatically export 3D mesh as .usdz file format using ModelIO and MetalKit frameworks? Here's a code: import ARKit import RealityKit import MetalKit import ModelIO let asset = MDLAsset(bufferAllocator:…
Andy Jazz
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What is the proper workflow for creating city landscapes for use with RealityKit

I'm learning up on RealityKit and trying to create a city landscape. Watched this video from Apple and downloaded the associated project talking about RealityComposer https://developer.apple.com/videos/play/wwdc2019/605 My initial goal is to create…
Avba
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How to Convert .Obj to .USDZ 3D files

I've working with the augmented reality app, I want to convert some of the 3d model files .obj to usdz file is there any way to convert using Xcode..? Thanks in advance.
Rahul D
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