MiniMax H3 I2V Prompt Engineering: A Structured Guide for Audio-Visual Sync
Free_Pressure8623 · reddit · 2026-08-06
The author shares a system prompt designed for MiniMax H3 (Hailuo 03) Image-to-Video generation in ComfyUI, aiming to produce highly structured, production-ready prompts via LLMs.
- Four-Part Structure: Prompts must include Image Alignment & Identity Locks, Integrated Multimodal Description (shots, actions, dialogue), Overall Soundscape (foley, ambience), and Non-Diegetic Music (score).
- Core Rules:
- Asset Locking: Explicitly define unchangeable character traits and environmental elements from the source image.
- Anti-Lens Stare: Unless requested, characters should focus on scene objects, avoiding eye contact with the camera.
- Causal Motion: Actions and dialogue cannot be instantaneous; they require physical lead-ins like breathing or eye shifts.
- Native Audio Integration: Dialogue is embedded in shot descriptions, while foley and background scores are separated to prevent audio bleeding.
Related event: Developers Release Prompt Engineering Guides for MiniMax H3(4 posts)→
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