Hynos Phosphaté
- Year
- 2026
- Field
- Art Direction
- Concept study
- 4 images, 1 films
A personal concept study on AI in TVC production, with no commercial value. The Hynos Phosphaté name and packaging belong to their owner. This project does not represent the brand and was not sponsored by it.
Brief
A toothpaste ad set in 1960s subsidy-era Vietnam, built on a pun: “you plant rice to have rice to eat, yet some people had to plant teeth to have teeth to eat.” The rice field leads into the toothache story.
- Tagline
- Đánh răng sớm chiều, răng vững bền nhiều
- Brush morning and night, and your teeth last a long time.
- Style
- Retro Vietnam 1960s, problem and solution, witty
- Spec
- 15 seconds, 16:9, 1080p
- Result
- Seedance 2.0, four renders, V4 final. Three character rounds and two script rounds.
Render history
- V1
Original Seedance audio. Vietnamese voice off and no music.
- V2
Silent video with post audio. Packshot and the farmer’s outfit changed.
- V3
Added food in shot 3, light and particle effects in shots 4 and 5, and transitions.
- V4
Fixed the physics error in the toothbrushing scene and finished. (final)
Tools and models
- Product
- GPT Image 2
- Script
- tv-ad-script
- Character
- Soul 2.0, GPT Image 2
- Location
- GPT Image 2
- Video
- Seedance 2.0
- Audio
- Seed Audio
- Assembly
- ffmpeg
Lessons learned
- Seedance 2.0 native audio handles Vietnamese badly, so voice is separated and overlaid in post.
- Motion needs very detailed description to avoid physics errors, like water running from the mouth while brushing.
- Soul 2.0 cannot take a prompt and a reference together, so GPT Image 2 is used when a reference photo is needed.
- Mixing music, foley and voice in ffmpeg gives a lively sound with control over every layer.
Completed 29 July 2026
