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Project Updates

Image Targets​

If your project utilizes image targets, you need to configure them at the start of your experience.

To enable image targets, call XR8.XrController.configure before any other code:

const onxrloaded = () => {
  XR8.XrController.configure({
    imageTargetData: [
      require('../image-targets/target1.json'),
      require('../image-targets/target2.json'),
    ],
  })
}
window.XR8 ? onxrloaded() : window.addEventListener('xrloaded', onxrloaded)
info

Autoloaded targets will have a "loadAutomatically": true property in the json file.

Asset Bundles​

References to asset bundles may need to be updated. Asset bundles are now plain folders.

For example, the physics playground sample project uses a gLTF asset bundle. When running the project for the first time, we encounter a compiler error:

To fix the issue, we need to update all references to reflect the correct location and name of the asset.

In this case, we need to update the gLTF path from:

/assets/models/props/cannonball.gltf

to:

/assets/models/props/cannonball.gltf/Prop_CannonBall.gltf

Optimization​

If you are not using the XR Engine, you can remove the xr.js script tag from index.html and delete the external/xr/ folder to save bandwidth.

If you are using the XR Engine, you can also customize whether face, slam, or both, are loaded on the data-preload-chunks attribute.