Key out green screen after effects1/6/2024 ![]() ![]() Use a high shutter speed on the camera when shooting to reduce motion blur and make a better key.A poor quality green screen will make it more difficult to get a good key. Adjust the color correction settings if desired.Luma: This controls the luminance of the edge pixels.Amount: This controls how much spill is removed.Range: This controls the range of pixels that are desaturated.Desaturation: This desaturates the edge pixels. ![]() Use the spill suppression settings to remove any green spill from the edges of the footage.Midpoint: This changes the midpoint of the gray that is transparent and effect the contrast setting above.Contrast: This makes the matte more contrasty but if used too much can ruin the key of things like hair that should retain some transparency.This acts like a feather and too much of it can look bad. Soften: This softens the edges of the matte.Be careful since this will eat away at the video you want to keep. Choke: This shrinks the matte from the outside edges.Try to have a good key by using the matte clean up as little as possible. Adjust the settings of the matte cleanup section only if needed.Pedestal: This helps removes noise from the the white or “keyed” areas.Best to use as little as possible so you do not key out other colors on the video you want to keep. Tolerance: This controls the range of the green color that is selected.Shadow adjustment: This controls the opacity of the dark areas of the source image.Highlight adjustment: This controls the opacity of the bright areas of the source image.Use it as little as possible since it controls the entire image. ![]()
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