Does not work at all with Android or IOS

[anupamdas2012]

tested on both Android and Ios with unity 2019.1.4f1. Tried the web based and non web based (UWP) examples, nothing works on either devices. Assuming mobile devices is not supported currently?

[AdamMitchell-ms]

When you say that nothing works, can you be more specific? UnityGLTF should work for iOS and Android. If it's broken in some way, then we should get it fixed.

[marcspraragen]

I'm also having trouble running on Android. I tried builds with one scene, all scenes, and my own scene. The apk runs but just displays a blank game screen (skybox and floor). No way to navigate between scenes.

Also, no console errors, just warnings:

Script attached to 'GLTF' in scene 'Assets/UnityGLTF/Examples/StreamTestScene.unity' is missing or no valid script is attached.
UnityEditor.BuildPlayerWindow:BuildPlayerAndRun()

Assets/UnityGLTF/Examples/OrbitCameraController.cs(22,22): warning CS0109: The member `UnityGLTF.Examples.OrbitCameraController.camera' does not hide an inherited member. The new keyword is not required

Unity 2017.4.29f1, building for Android 4.4 minimum.
Samsung 8+ running Android 9

[antoninklopp]

The problem is that File.ReadAllBytes() is not working for Assets on my side from my side.
I get a FileNotFoundException on Android and Oculus

[jingwenhz]

I also see only the skybox and floor when building on Android. adb logcat output shows:

Unity : ArgumentOutOfRangeException: Length cannot be less than zero.
Unity : Parameter name: length
Unity : at System.String.Substring (System.Int32 startIndex, System.Int32 length) [0x0004a] in <1f0c1ef1ad524c38bbc5536809c46b48>:0
Unity : at UnityGLTF.Examples.WebServerComponent.Start () [0x00007] in /Users/.../UnityGLTF/UnityGLTF/Assets/UnityGLTF/Examples/WebServerComponent.cs:12

The line in question in WebServerComponent.cs is
var wwwPath = appPath.Substring(0, appPath.LastIndexOf("Assets")) + "www";

I have no problems running/importing models in the Unity editor. Do we need to take additional steps to properly run scenes on mobile?

Edit: I just tried building for Mac instead and observed the same issue, so it does not appear to be a problem with mobile.

[antoninklopp]

Hi,

After a few tries on Unity Android, I managed to compile an Apk and got the plugin to work.
You need to do a few things :

• Use the stream file and persistent data path to load the data. To do so, move a glb file into your data folder on your android device.
• Add the shaders to the compilation.

[marcspraragen]

Excellent! Thanks for reply.

[AdamMitchell-ms]

Hey @antoninklopp,

Thanks for figuring it out and sharing. Could you please update the readme.md with instructions for Android?

[Cris21395]

Hi @antoninklopp,

Can you explain in more detail how to load glb files for android? For example, do you copy manually glb files on android using adb or these files are stored at StreamingAsset folder?

Thanks.

[haosizheng]

Hi,

After a few tries on Unity Android, I managed to compile an Apk and got the plugin to work. You need to do a few things :

• Use the stream file and persistent data path to load the data. To do so, move a glb file into your data folder on your android device.
• Add the shaders to the compilation.

So, is it means I can not load GLTF from web at runtime on IOS or Android?