Prompt Formula Card: Structured Approach to Reference-Image-to-Video

Turn the prompt-writing method for "reference-image-to-video" into a visual card that can be reused directly. The work uses a single information card as the sole reference image, referencing it via [Image 1] to drive the reference-image-to-video path of happyhorse-1.1, so that the frame transitions from the card's static layout into a dynamic explanatory shot, used to illustrate the four components of a structured prompt: subject and scene, action and camera movement, style and lighting, constraints and duration. In composition, the reference image ensures consistency of subject and layout, while the prompt governs the camera language and temporal rhythm; aspect ratio 16:9, 1080p, 5 seconds, suitable as opening material for developer documentation, model card pages, or converting a social media long image into video. Because the reference image also constrains the subject's appearance, this writing method is also applicable to short-drama storyboarding and brand material previews that require reusing the same visual asset across multiple shots. Suitable for creating similar works with model families like happyhorse-1.1 that support multi-reference image fusion and character consistency.