SpriteStage: Long Horizon Animation Generation via Progressive Scene Programming and Replay

TL;DR

SpriteStage enables long-form animation generation by iteratively executing and refining scenes within a shared virtual stage, using runtime feedback to adjust narrative and action elements. It combines scene programming with engine reorchestration to align generated content with production-ready assets while preserving timing and event continuity. The framework produces coherent, extended animations up to 14.3 minutes in length.

Why It Matters

Long animations require consistent narrative and visual coherence across scenes, which current video generation models struggle to maintain. SpriteStage addresses this by enabling dynamic, feedback-driven refinement of scenes during execution, making it feasible to generate complex, production-quality animations without predefining the entire story upfront.

Key Findings

• Iterative enactment allows scene refinement based on runtime and visual feedback, improving narrative and action consistency across long sequences.
• Engine reorchestration maps draft scenes to production assets while preserving event structure, geometry, and timing, enabling seamless transition to final video output.
• Three full animations, ranging from 9.9 to 14.3 minutes, demonstrate the framework's ability to generate extended, coherent narratives through progressive scene programming.