# Build a GLTF model viewer

Modify `main.js` so that on startup the app loads a GLTF model from the URL `https://threejs.org/examples/models/gltf/DamagedHelmet/glTF/DamagedHelmet.gltf` and places it in front of the user at chest height. The user should be able to grab and reposition the model in XR.

Keep the existing cylinder from the starter template. Only edit `main.js`. Do not touch `index.html` or the importmap.