Demo — inputs & output
Prompt structure inspired by Inspired by fal.ai H3 Guide
Green-Screen to Fairytale Composite
Replace green-screen footage with a fairy-tale background that matches subject motion and relighting.
Who this is for
Compositors replacing backgrounds while preserving performance.
How this prompt is built
Read this first — once you see the pattern, you can write your own without starting from zero.
- Video 1
Foreground performance with green screen.
- Video 2
Target environment and lighting reference.
Adapt it for your project
- Swap fairy-tale for sci-fi or urban night.
- Name specific relight cues.
Where people mess up
- Background not reacting to subject motion.
- Unmatched edge spill.
Full prompt (copy & edit)
Remove the green screen background of Video 1 and turn it into a fairy tale-like background similar to Video 2. The background elements need to completely match the actions of the characters in Video 1. Modify the lighting of the characters in Video 1 so that it completely matches the background.
New to Ref2VA? Read the MiniMax H3 Ref2VA prompt guide
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