Unity Custom APK Not Rendering in 3D on Leia Lume Pad 2

Lume Pad
1

Hello,

I am developing a custom Unity APK for the Leia Lume Pad 2 using the latest Leia SDK (v3.2.18). The SDK components, including LeiaDisplay and HeadTrackingService APKs, are installed on the tablet.

Issue:
I have followed the standard steps to create and build the ModelViewer sample scene provided in the Leia SDK. However, when I run the APK on the Lume Pad 2, the scene is only displayed in 2D, and it does not switch to 3D lightfield mode as expected.

Steps I’ve Taken:

  1. Imported Leia SDK (v3.2.18) into Unity.

  2. Opened the ModelViewer sample scene.

  3. Built the APK using Android Build Settings.

  4. Installed the APK on the Lume Pad 2.

Expected Behavior:
The scene should render in 3D lightfield mode on the Lume Pad 2.

Actual Behavior:
The scene displays only in 2D, not switching to 3D lightfield mode.

Questions:

  • Is there any additional configuration required in Unity Player Settings, such as for Graphics APIs or XR settings?

  • Do I need to manually enable Lightfield rendering in the code for custom APKs?

  • Are there any specific device permissions or SDK components I need to initialize for 3D output?

Please let me know if I am missing something in the configuration. Any guidance or advice would be appreciated.

Thank you!

1 Like
2

Hello Raj, I am Don_Lindsay.

I am interested in creating a library of license-able IP for taking an existing 3d mobile game and re-building that existing game to reder directly to 3D lightfield (under a SpatialGlass). We re-publish more than one such 3D mobile game and split the sales royalties.

3

Hi Don,

Thank you for reaching out. I understand that you’re looking to adapt existing 3D mobile games so they can render natively on SpatialGlass lightfield displays, with the goal of building a catalog of republished titles and sharing royalties from sales.

Could you provide more details about:

  1. Which game engines are involved (Unity, Unreal, etc.)?
  2. Whether you already have the rights to the games being adapted?
  3. The SpatialGlass SDK/API and technical requirements?
  4. The expected revenue-sharing model and terms?
  5. Whether there is also a development budget, or if compensation is entirely royalty-based?

I’d be happy to discuss further once I understand the technical and business requirements.

4

Hi Raj,

Thanks for replying. I would appreciate some help as this is a much more complicated matter than I had originally thought, when I began to chase this lenticular glasses free 3D technology.

One 3Dsp (3D screen protector) manufacturer has sent me documentation (a PDF half in Chinese) describing their Unity plugin SDK. Their SW appears to be a DLL that has a dependency on the Mathematics module (which provides SIMD access) for doing the rendering I assume. They are ALSO loading a local AI for doing facial tracking - to dynamically keep the autostereoscopic images centered between the eyes. And their calibration software apparently was designed for LCD bar-style sub-pixel geometries, but does not work on OLEDs. Another manufacture has also offered to send me their (also Unity) SDK plugin as well, but communication is slow and difficult.

So, Rending, Tracking, and Calibration are three software elements that are required to have this technology work.

The plan is to create all three SW elements into one package - and licence that IP package as a high quality API to game developers, for 3% of sales for games that use this IP.

At this point the number one issue holding back this project is communication with the Chinese manufacturers of the lenticular 3D screen protectors. And we gotta code those 3 software elements, too.

Are you interested in collaborating on this project?

-Don = :-}>

5

Hi Don,

Thank you for your detailed email, and I sincerely apologize for the delayed response.

To be honest, I didn’t fully understand every aspect of the project from the email alone. Also, I’m not very active on this platform, and unfortunately your email ended up in my spam folder, so I missed it.

Would it be possible for you to contact me through your official email address or share your LinkedIn profile? That would make it easier for us to stay in touch.

You can connect with me on LinkedIn here:

https://www.linkedin.com/in/raj-kanjariya/

Once we’re connected, I’d be happy to schedule a Zoom call so we can discuss your requirements in detail. I think that would be the best way for me to understand the project and determine how I can contribute.

I look forward to hearing from you.

6

Hello Raj,

My official email address is:

don.w.lindsay@gmail.com

My LinkedIn profile is

https://www.linkedin.com/in/don-lindsay-0185258/

But I prefer NOT messaging within that LinkedIn platform - EMAIL is preferable to me.

Feel free to cut/paste your questions into my original email description of the project.

-Don = :-}>

Don.W.Lindsay@gmail.com