Spatial UI widgets for A-Frame

Explore spatial design as described in Apple guidelines presented at WWDC 2023.

For quick prototyping and experimentation of Spatial Applications in your browser: desktop or any headset.

TO DO

• Buttons drop shadows.
• Polish hover effect.
• Reflection / border of windows.
• Implement disolve effect when modal shows / hides.
• Replace MeshPhysicalMaterial with custom glass shader for window. It will allow for finer control of look (reflections, alpha blending to animate opacity...) Meet SwiftUI for spatial computing 8:19
• Vibrancy
• Lazy follow
• Display icons
• Scale and reposition windows.
• Embed models in the view. WWDC 2023 Get started with building apps for spatial computing 23:00
• Gestures (Zoom, Rotate): WWDC 2023 Design For Spatial Design 13:01 https://developer.apple.com/videos/play/wwdc2023/10073/)
• Direct input: (Zoom, Rotate): WWDC 2023 Design For Spatial Design 17:00 https://developer.apple.com/videos/play/wwdc2023/10073/)
• Tab Views and ornaments. Meet SwiftUI for spatial computing 7:50
• Text rendering / rasterization Explore rendering for spatial computing 14:00
• Passthrough tinting for videos [Enhance your spatial computing app with RealityKit 10:05](https://developer.apple.com/videos/play/wwdc2023/10081/]

dynamic scale tab, toolbox, ornaments