SDF Marbles
Gemini 4 Argon SF HackathonMarble Madness SDF: Lockstep Analytical Jet-SDF Physics, Non-Euclidean Portals PLAY IT: https://bourkefloyd.github.io/gemini-4-argon-sfhackathon-2026/ Marble Madness SDF is a clean-room remake and expansion of Atari's 1984 classic where the entire 3D world contains zero polygon meshes. A single mathematical Signed Distance Field d(p, t) drives both 60+ FPS WebGL2/WGSL sphere-tracing (with chromatic glass refraction, floor caustics, and non-Euclidean see-through portals) and 120 Hz Symplectic Jet-SDF (jSDF) rolling physics. Players carve craters, extrude mid-air bridges, and freeze surfaces in 0.0018 ms via live CSG mutations across 10 courses (including Riptide Surf, Sahara Dunes, and Neon Obby) Note video uploading slowly....
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