H3 Max Text to Video Generator and Prompt Guide

Create H3 Max text-to-video clips with synchronized audio. Learn the best prompt structure, duration, resolution, aspect ratio, and iteration workflow.
Sep 5, 2026

H3 Max text to video turns a written shot description into a 5–15 second clip. A strong request combines the visible subject and action with camera direction, lighting, style, and the sound that belongs in the scene.

  1. Start with one subject and one main action.
  2. Choose the frame shape: 16:9 for landscape, 9:16 for vertical, 1:1 for square, or a wider/narrower supported ratio.
  3. Test the idea at 5 seconds and 480P.
  4. Add camera, lighting, and audio direction only after the main action is clear.
  5. Re-run the selected direction at 768P when finer detail matters.

H3 Max text prompt structure

Subject and setting + visible action + camera and framing + lighting and visual style + dialogue, ambience, or sound effects

Example:

At sunrise, a colossal translucent sky whale glides above a futuristic coastal city. The camera begins between glass towers, rises quickly, and makes one wide orbit as glowing particles trail from its fins. Golden volumetric light, cinematic photorealism, one continuous shot. Audio: deep whale song, rushing wind, distant city ambience, and a restrained orchestral swell.

Browse more reusable structures in the H3 Max prompt library.

Duration, resolution, and aspect ratio

SettingAvailable choicesPractical starting point
Duration5–15 seconds5 seconds for one clear beat
Resolution480P or 768P480P for testing, 768P for selected output
Aspect ratio21:9, 16:9, 4:3, 1:1, 3:4, 9:16Match the publishing channel before writing composition details

Common text-to-video failures

  • Several unrelated scenes are packed into five seconds.
  • The prompt lists visual adjectives but never says what moves.
  • Camera instructions conflict with one another.
  • A spoken paragraph is too long for the selected duration.
  • The main subject is framed for landscape and then forced into a vertical layout.

Keep the first version simple. Change one important variable per generation so you can tell what improved the result.