MotionBricks: Scalable Real-Time Motions with Modular Latent Generative Model and Smart Primitives

• URL: http://arxiv.org/abs/2604.24833v1
• Date: Mon, 27 Apr 2026 17:58:23 GMT
• Title: MotionBricks: Scalable Real-Time Motions with Modular Latent Generative Model and Smart Primitives
• Abstract summary: We introduce MotionBricks: a large-scale, real-time generative framework with a two-fold solution.<n>First, we propose a large-scale modular latent generative backbone tailored for robust real-time motion generation.<n>Second, we introduce smart primitives that provide a unified, robust, and intuitive interface for authoring both navigation and object interaction.
• Score: 32.00473064932455
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Despite transformative advances in generative motion synthesis, real-time interactive motion control remains dominated by traditional techniques. In this work, we identify two key challenges in bridging research and production: 1) Real-time scalability: Industry applications demand real-time generation of a vast repertoire of motion skills, while generative methods exhibit significant degradation in quality and scalability under real-time computation constraints, and 2) Integration: Industry applications demand fine-grained multi-modal control involving velocity commands, style selection, and precise keyframes, a need largely unmet by existing text- or tag-driven models. To overcome these limitations, we introduce MotionBricks: a large-scale, real-time generative framework with a two-fold solution. First, we propose a large-scale modular latent generative backbone tailored for robust real-time motion generation, effectively modeling a dataset of over 350,000 motion clips with a single model. Second, we introduce smart primitives that provide a unified, robust, and intuitive interface for authoring both navigation and object interaction. Applications can be designed in a plug-and-play manner like assembling bricks without expert animation knowledge. Quantitatively, we show that MotionBricks produces state-of-the-art motion quality on open-source and proprietary datasets of various scales, while also achieving a real-time throughput of 15,000 FPS with 2ms latency. We demonstrate the flexibility and robustness of MotionBricks in a complete production-level animation demo, covering navigation and object-scene interaction across various styles with a unified model. To showcase our framework's application beyond animation, we deploy MotionBricks on the Unitree G1 humanoid robot to demonstrate its flexibility and generalization for real-time robotic control.

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