1. open AdobeAfterEffectsCC, import a green screen video file, drag it to the layer panel, right-click the layer to pop up the menu, and then click the effect-key light.
2. As shown in the figure, click the Screencolor small straw under Keylight in the effect control panel to absorb the green screen around the main body of the picture. Be careful not to be too far away from the main body to avoid inaccurate color absorption.
3. Click Open View to pop up a drop-down menu and select a screen mask.
4. Then click Open Screen Mask.
5. Let's adjust the ClipWhite parameter and lower the value until the main body of the picture becomes pure white.
6. Then adjust the ClipBlack parameter and increase the value until the background color of the picture becomes pure black.
7. Click to open the view again and set the view as the final result.
8. To see the final keying effect, we can add a background, or directly click to switch the transparent grid.
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