Problem
A reflective wardrobe material picks up the green screen hue and produces holes or semi-transparent regions during keying.
Solution
Root Cause / Diagnostic:
Specularity and high-sheen synthetic textiles reflect ambient green light directly into the camera lens with near 100% saturation. The chroma keyer evaluates this reflected wavelength as screen background rather than foreground subject, punching holes into the torso.
Actionable Fix:
1. Apply a matte dulling spray or polarizing filter (CPL rotated to minimum reflectance) to suppress direct surface reflections by 60-80%.
2. Swap the garment for matte natural fibers (cotton, wool, linen) and position a 3200K amber/magenta hair or rim light opposite the green spill angle to neutralize edge cast.
3. Check the alpha matte view in your NLE or hardware switcher at 100% zoom to verify zero transparency on wardrobe surfaces.
Pro Tip:
Keep polarizing film on your studio fill lights oriented at 90 degrees to a circular polarizer on the lens (cross-polarization) to eliminate wardrobe and prop glare entirely.
Specularity and high-sheen synthetic textiles reflect ambient green light directly into the camera lens with near 100% saturation. The chroma keyer evaluates this reflected wavelength as screen background rather than foreground subject, punching holes into the torso.
Actionable Fix:
1. Apply a matte dulling spray or polarizing filter (CPL rotated to minimum reflectance) to suppress direct surface reflections by 60-80%.
2. Swap the garment for matte natural fibers (cotton, wool, linen) and position a 3200K amber/magenta hair or rim light opposite the green spill angle to neutralize edge cast.
3. Check the alpha matte view in your NLE or hardware switcher at 100% zoom to verify zero transparency on wardrobe surfaces.
Pro Tip:
Keep polarizing film on your studio fill lights oriented at 90 degrees to a circular polarizer on the lens (cross-polarization) to eliminate wardrobe and prop glare entirely.