People liked my desert, so here's a waterbending demo!

I built **SNOWFLOW**, a browser-based WebGPU graphics demo focused on deformable snow, atmospheric lighting, water-inspired spells, and snow surfing. The snow surface reacts persistently to footsteps, movement, and spells - creating trenches, raised berms, compressed snow, ice, and trails that gradually refill. It also includes procedural terrain, cloth simulation, dynamic spell lighting, particle effects, and a third-person snow-surf system. **Claude Code with Opus 5** handled the project end to end: planning the architecture, writing the Babylon.js and WGSL systems, profiling performance, iterating from screenshots, and documenting technical decisions. The whole project was built from the implementation brief rather than an existing starter project. It took me around 9 hours and \~4m tokens (not counting cached ones). **You can try it on a WebGPU-capable computer here**: [https://snowflow-lilac.vercel.app/](https://snowflow-lilac.vercel.app/) F1 - settings WASD - movement…