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Main Authors: Cai, Yiyi, Wu, Yuhan, Li, Kunhang, Zhou, You, Zheng, Bo, Liu, Haiyang
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2512.03520
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author Cai, Yiyi
Wu, Yuhan
Li, Kunhang
Zhou, You
Zheng, Bo
Liu, Haiyang
author_facet Cai, Yiyi
Wu, Yuhan
Li, Kunhang
Zhou, You
Zheng, Bo
Liu, Haiyang
contents We present FloodDiffusion, a new framework for text-driven, streaming human motion generation. Given time-varying text prompts, FloodDiffusion generates text-aligned, seamless motion sequences with real-time latency. Unlike existing methods that rely on chunk-by-chunk or auto-regressive model with diffusion head, we adopt a diffusion forcing framework to model this time-series generation task under time-varying control events. We find that a straightforward implementation of vanilla diffusion forcing (as proposed for video models) fails to model real motion distributions. We demonstrate that to guarantee modeling the output distribution, the vanilla diffusion forcing must be tailored to: (i) train with a bi-directional attention instead of casual attention; (ii) implement a lower triangular time scheduler instead of a random one; (iii) utilize a continues time-varying way to introduce text conditioning. With these improvements, we demonstrate in the first time that the diffusion forcing-based framework achieves state-of-the-art performance on the streaming motion generation task, reaching an FID of 0.057 on the HumanML3D benchmark. Models, code, and weights are available. https://shandaai.github.io/FloodDiffusion/
format Preprint
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institution arXiv
publishDate 2025
record_format arxiv
spellingShingle FloodDiffusion: Tailored Diffusion Forcing for Streaming Motion Generation
Cai, Yiyi
Wu, Yuhan
Li, Kunhang
Zhou, You
Zheng, Bo
Liu, Haiyang
Computer Vision and Pattern Recognition
We present FloodDiffusion, a new framework for text-driven, streaming human motion generation. Given time-varying text prompts, FloodDiffusion generates text-aligned, seamless motion sequences with real-time latency. Unlike existing methods that rely on chunk-by-chunk or auto-regressive model with diffusion head, we adopt a diffusion forcing framework to model this time-series generation task under time-varying control events. We find that a straightforward implementation of vanilla diffusion forcing (as proposed for video models) fails to model real motion distributions. We demonstrate that to guarantee modeling the output distribution, the vanilla diffusion forcing must be tailored to: (i) train with a bi-directional attention instead of casual attention; (ii) implement a lower triangular time scheduler instead of a random one; (iii) utilize a continues time-varying way to introduce text conditioning. With these improvements, we demonstrate in the first time that the diffusion forcing-based framework achieves state-of-the-art performance on the streaming motion generation task, reaching an FID of 0.057 on the HumanML3D benchmark. Models, code, and weights are available. https://shandaai.github.io/FloodDiffusion/
title FloodDiffusion: Tailored Diffusion Forcing for Streaming Motion Generation
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2512.03520