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arXiv · 2610.38468

Cinematize from Unreal: Agentic Choreography for Controllable World Simulation

Zifan Song·Caihua Shan·Kaitao Song·Yifan Yang·Dongsheng Li·Cairong Zhao
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Abstract

Controllable world simulation requires more than visually plausible frames: scenes must retain persistent state, coordinated actions, and editable temporal structure. Generative world models offer flexible visual synthesis, but their outputs do not always expose the objects and transitions needed for precise revision. Graphics engines provide executable state and direct control, yet translating language into valid operations requires specialized knowledge of assets, geometry, and interdependent APIs. We present CineU (Cinematize from Unreal), an agentic system for language-driven world orchestration and cinematic choreography within Unreal Engine. From a code-based world modeling perspective, an Unreal project serves as a persistent, inspectable world representation, while agent-generated code specifies operations whose effects can be executed and verified. CineU combines hierarchical orchestration, cascaded asset retrieval and geometry-constrained placement, capability-aligned code synthesis, and multi-stage verification with localized repair. Shared scene and timeline context coordinates entities, actions, camera trajectories, and shot boundaries while supporting dependency-aware revisions. Experiments on scene construction, selective editing, multi-shot cinematography, and component ablations show how specialized execution knowledge and engine feedback improve task completion and targeted recovery. CineU illustrates how executable world state can complement learned visual generation to support controllable and revisable simulated worlds.

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Zifan Song, Caihua Shan, Kaitao Song, Yifan Yang, Dongsheng Li, Cairong Zhao. 2026-10-28. Cinematize from Unreal: Agentic Choreography for Controllable World Simulation. https://arxiv.org/abs/2610.38468

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