Two Links Double Pendulum vs DoDiD

Two Links brings one of physics' most beautiful chaotic systems to life. Watch a double pendulum swing, twist, and spiral in real-time 3D — then place it on your floor in Augmented Reality and walk around it. Features • Real-time double pendulum physics (RK4 integration) • AR mode — anchor the pendulum on any flat surface • Orbit the 3D scene freely or let it run hands-free • Adjust link length, pivot position, density, and color • Particle trail from the second link tip • Night sky environment with the Moon and Earth • Pause, shuffle, and watch the chaos reset

Discover 3D in a whole new way. DoDiD is a 3D viewing and creation app where every model, animation, and world comes with matching music. Just swipe up or down to explore, interact with stunning 3D content using simple touch controls, and create your own 3D experiences from photos. Start exploring right away No account is needed to browse 3D content. Open the app, swipe through creations, and enjoy music that starts automatically when each new 3D scene appears. What you can do in DoDiD: • Explore interactive 3D models, animations, and worlds • Hear songs and music matched to each 3D creation • Swipe up or down to switch to the next 3D scene • Rotate, zoom, pan, and adjust supported 3D content • Get recommended 3D content based on what you like • Sign up with your email to unlock more features • Save your favorite 3D creations • Upload a photo and generate a 3D creation from it • Choose whether your creation is Public or Private • Manage your profile, favorites, and your own 3D posts • Report inappropriate content and block users • Delete your account directly in the app Easy touch controls: • Swipe with one finger to move to the next 3D creation • Drag with one finger to rotate a 3D model • Pinch with two fingers to zoom in or out • Move with two fingers to pan supported models • In supported 3D worlds, use touch gestures to navigate the scene Create your own 3D content: Tap the + button, take a photo or choose one from your gallery, add tags, choose Public or Private, and submit. Your image will be processed into a 3D creation and paired with music. Then you can manage it anytime from My 3D. Stay in control: In the Me section, you can update your profile, manage favorites, review your creations, change visibility settings, or remove your content. You can also delete your account whenever you choose. Built for discovery, creativity, and fun: Whether you want to relax with immersive 3D scenes, discover fresh visual content, or turn your own photos into something new, DoDiD makes 3D feel alive, interactive, and personal.