Carbon demo: hand-written CUDA path tracer plus MuJoCo physics powers 60-second one-take
fofrAI · x · 2026-11-11
fofrAI details the tech stack behind the "Carbon" demo: a from-scratch custom CUDA/C++ path tracer, integrated MuJoCo rigid-body physics, and a 60-second Rube Goldberg machine tuned over 120,000 gravity and contact steps in MuJoCo with no keyframes. The creator also built a 3D studio syncing a continuous camera take to a custom Lyria 3.5 track. Context suggests this is a hands-on look at Google's rumored Gemini 4 "Carbon" generation capabilities.
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