Stream3D: HKUST, MIT, Harvard add memory to 3D generators for stable long video streams

jiqizhixin · x · 2026-08-13

Researchers from HKUST, MIT, and Harvard introduce Stream3D, which adds smart memory to existing 3D generators, selectively caching useful past frames to maintain stability over long video streams without retraining. It outperforms KV-cache reuse and flow-based methods in visual and geometric quality. Paper, project page, and code are available.

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