Green Screen

Chroma key (green screen) is a real-time color-based effect that makes a specific color in your clip transparent. It works on both video and image clips and updates instantly as you adjust settings, so you can see the result live on the canvas.

This is ideal for studio footage shot against a green or blue screen, but it works with any solid-color background.

For AI-powered background removal that works with any background (not just solid colors), see Background Removal.

How to access

Select a video or image clip on the timeline, then open the Filters tab in the property panel and enable Remove a color.

Picking the key color

The key color is the color that will be made transparent. There are three ways to set it:

• Auto Detect: click to automatically analyze the current frame and detect the dominant background color. Works best with solid-color backgrounds.
• Pick From Preview: click the button, then click directly on the canvas preview to sample a color from the frame.
• Manual entry: type a hex color code (e.g. #00ff00 for green).

The default key color is green.

Settings

Adjust these sliders to refine the effect in real time:

• Similarity (0 to 100%): how closely a pixel's color must match the key color to be removed. Higher values remove more of the color range. Default: 18%.
• Blend (0 to 100%): controls the softness of the transition between removed and kept areas. Higher values create smoother edges. Default: 6%.
• Despill (0 to 100%): removes color spill where the key color reflects onto the subject (e.g. green tint on skin near a green screen). Default: 28%.
• Edge Cleanup (0 to 100%): tightens the edges to reduce fringing and halos around the subject. Default: 20%.

All changes preview instantly on the canvas.

Show matte

Toggle Show Matte to see the transparency mask instead of the final result. White areas are fully visible, black areas are fully transparent, and gray areas are partially transparent. This helps you fine-tune the similarity and blend settings.

Compositing with a new background

After removing the background, the transparent areas reveal whatever is on the tracks below. To add a replacement background:

1. Place an image, video, or solid color clip on a track below the keyed clip.
2. The keyed clip's transparent areas will show the background clip through.

Reverting

Disable the Remove a color toggle to turn off chroma key. The clip returns to its original appearance. You can also use undo to step back through changes.

No credits required

Chroma key runs locally using GPU-accelerated rendering. It does not use credits and has no usage limits.

What to read next

• Background Removal
• Clips
• Effects and Filters