a aiscreens
Lighting Coverage and Edit Logic Intermediate

Fill Light

Light that softens shadows created by the key light.

Why it matters

It controls contrast while preserving shape.

When to use

  • Portraits
  • Interviews
  • Product shots
  • Shadow control

Human shoot hint

Use a dim light, bounce card, or nearby wall to lift shadows gently.

AI prompt template

cinematic [subject] with soft key light and gentle fill light, balanced shadows, [duration]

Preview prompts

previewVideoUrl: null

[subject] with key and fill light, soft controlled shadows, 3 seconds

Common mistakes

  • Fill removes all shadow
  • Fill comes from an unnatural direction