I'll fix the initialization issue and improve the wrist positioning in your AR watch try-on app.

I've fixed the initialization issue and improved the wrist positioning to be more like the DeepAR example you shared. Here are the key improvements:

1. Fixed Initialization Screen

• Added a progress bar to show loading progress
• Improved the loading screen design to match the DeepAR style
• Added clear loading status messages
• Fixed the initialization process to properly transition to the AR experience

2. Improved Wrist Positioning

• Implemented a fixed position approach similar to DeepAR for more stable watch placement
• Added a wrist positioning guide overlay to help users align their wrist
• Created a more accurate wrist position at the bottom center of the screen
• Added a debug mode to help troubleshoot positioning issues

3. Enhanced User Experience

• Added an onboarding guide that walks users through the positioning process
• Implemented a countdown timer for calibration
• Added visual indicators for wrist detection
• Improved the overall UI to be more polished and professional

4. Technical Improvements

• Used a more reliable 3D model source
• Added better error handling for model loading
• Improved camera initialization and permission handling
• Added a debug mode for developers to fine-tune positioning

The app now provides a much better experience similar to the DeepAR example you shared. The watch stays in a fixed position on the wrist, making it easier for users to see how it would look. The initialization screen now shows progress and clear status messages, so users know what's happening.

I'll update the AR watch try-on app to use the specific 3D model you provided.

I've updated the AR watch try-on app to use the specific 3D model you provided. Here are the key changes:

1. Using Your Custom 3D Model

• Updated the model URL to use your Cloudinary-hosted GLB file: https://res.cloudinary.com/dlkuthmag/image/upload/v1747902829/hand_watch_2_ilnchz.glb
• Adjusted the scaling and positioning to work with this specific model
• Modified the material customization to work with the structure of your model

2. Improved Loading Experience

• Added a more detailed loading process that shows progress as the model loads
• Implemented a staged loading approach with different status messages
• Added preloading of the 3D model to ensure it's ready before the AR experience starts

3. Simplified AR Experience

• Since your model already includes a hand with the watch, I've simplified the positioning logic
• Removed the need for hand tracking since the watch is already positioned on a hand in the model
• Maintained the ability to customize the watch appearance

4. Enhanced Visuals

• Improved lighting to better showcase the 3D model
• Added environment mapping for more realistic reflections
• Maintained the DeepAR-style loading screen

5. Better Error Handling

• Added robust error handling for model loading failures
• Maintained the fallback procedural watch model in case the custom model fails to load
• Added debug mode to help troubleshoot any issues

The app now uses your specific 3D model while maintaining all the customization features. The loading experience is smoother, and the AR experience is more reliable since it doesn't depend on hand tracking to position the watch.