PhysVideoGenerator: Towards Physically Aware Video Generation via Latent Physics Guidance

• URL: http://arxiv.org/abs/2601.03665v1
• Date: Wed, 07 Jan 2026 07:38:58 GMT
• Title: PhysVideoGenerator: Towards Physically Aware Video Generation via Latent Physics Guidance
• Abstract summary: Current video generation models produce high-quality aesthetic videos but often struggle to learn representations of real-world physics dynamics.<n>We propose PhysVideoGenerator, a proof-of-concept framework that embeds a learnable physics prior to the video generation process.<n>We introduce a lightweight predictor network, PredictorP, which regresses high-level physical features extracted from a pre-trained Video Joint Embedding Predictive Architecture.
• Score: 2.2606796828967823
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Current video generation models produce high-quality aesthetic videos but often struggle to learn representations of real-world physics dynamics, resulting in artifacts such as unnatural object collisions, inconsistent gravity, and temporal flickering. In this work, we propose PhysVideoGenerator, a proof-of-concept framework that explicitly embeds a learnable physics prior into the video generation process. We introduce a lightweight predictor network, PredictorP, which regresses high-level physical features extracted from a pre-trained Video Joint Embedding Predictive Architecture (V-JEPA 2) directly from noisy diffusion latents. These predicted physics tokens are injected into the temporal attention layers of a DiT-based generator (Latte) via a dedicated cross-attention mechanism. Our primary contribution is demonstrating the technical feasibility of this joint training paradigm: we show that diffusion latents contain sufficient information to recover V-JEPA 2 physical representations, and that multi-task optimization remains stable over training. This report documents the architectural design, technical challenges, and validation of training stability, establishing a foundation for future large-scale evaluation of physics-aware generative models.

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