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DyCraft breaks long-horizon 3D animation into a storyboard of verified start and end states, which coding agents can build and debug separately

AspireAI community · arXiv (cs.CV)
Frontier coding agents generate good 3D scenes and articulated assets but struggle with coherent long-horizon animation: equipped with general-purpose harnesses they produce physically implausible results where objects interpenetrate, lack support or move unnaturally, and they struggle to repair this because they default to scripting the whole animation in one pass. DyCraft takes the practice of human animators and decomposes the job. It expands the prompt into a detailed plan, builds a static scene, then creates a 3D storyboard of key animation poses where each frame is a static 3D scene the agent can build and debug in isolation. Storyboarding decomposes the problem into pairs of verified start and end states, so the agent authors local motion between them with a collection of motion authoring tools. On 24 long-horizon, multi-shot tasks covering humanoid robots, human and animal characters and physical mechanisms, the authors report substantially reduced physical violations against a native GPT-6 agent in Codex and prior agentic baselines.
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