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Your subject now appears as a white silhouette against the black background.įor the purposes of this lesson, we’ll make a mask from a single frame. Click Chroma Keyer to open the Chroma Keyer controls. ✓ Click the Video FX button on the green screen video event. As before, the background turns to pure black in the Video Preview window. Mute the track containing the puffy clouds background image. Let’s create a Luminance Mask from the chroma key image we just created, so we can remove the background without using the Chroma Keyer. What is Luminance Mask? A Luminance Mask or luminance key removes parts of an image based on brightness rather than color. Your subject is now cleanly keyed against the puffy clouds background. ✓ When you’ve perfected the mask, uncheck the Show Mask Only checkbox and unmute the video track with the puffy clouds. For best results, do as little of all it as possible. If the edge is a little jagged and blocky, adjust the Blur amount. ✓ Adjust the Low Threshold and High Threshold sliders to perfect the mask. What you want, ideally, is a clean matte line around your subject, which should be solid white, and the greenscreen background completely black. The white portion is your subject, while the black portion is the background you keyed out. In the Video Preview window, the image changes to silhouettes in black and white. ✓ Mute the track containing the puffy clouds background. It probably still will not be a perfect key, so make some adjustments.
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In the Video Preview window, the green background disappears again, but this time, hopefully more of the background becomes fully transparent and everything is cleaner. ✓ In the Video Event FX window, click the Chroma Keyer checkbox to reactivate the effect. The green screen background probably isn’t perfectly uniform in color, so drag out the box to capture a range of the background color.
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Click a spot near the edge of your subject, then hold and drag the cursor away from the subject. A small box appears and grows larger as you drag. ✓ Move the cursor to the Video Preview window. A small box indicating the current color appears. ✓ In the Chroma Keyer controls, click the triangle next to Color. In the Video Preview window, the green screen background returns. ✓ Click the checkbox in the Chroma Keyer effect to deactivate it. In the Video Event FX window, find the effects chain at the top.
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The green color of the preset probably didn’t match the green screen color exactly. Most likely, you’ll still see parts of the background which didn’t key out fully, and possibly parts of the subject you want to keep which have become partially transparent. The green background also disappears from the image in the Video Preview window, revealing the puffy clouds in the background. The Video Event FX window opens with the Chroma Keyer controls visible. Drag the Green Screen preset thumbnail and drop it on the green screen video event. ✓ In the Video FX window, click Chroma Keyer. To see the puffy clouds image underneath, you must remove the green screen background. Trim the new event to match the length of the green screen event.Īt this point, you can only see the original green screen clip in the Video Preview window, because layers are ordered top to bottom, with upper layers visible first. Place the new video event directly under the original video event. Drag the Puffy Clouds preset thumbnail to the timeline, under the green screen video event. ✓ In the Media Generators window, click Noise Texture. ✓ Drag a clip with a subject shot against a green screen background to the timeline. When we’re done, you’ll be on your way to compositing on your own effects sequences, with your imagination the only limit. In this tutorial, we’ll take you through three keying effects in VEGAS Pro: We’ll look at a few of the most common tools and techniques offered in VEGAS Pro. But there are other types of mattes and masks which can separate a subject from its background. The idea behind it is pretty simple – remove the background from behind a subject and replace it with something else, like a different city, outer space, or whatever your imagination comes up with.Ĭhroma Key is the process of removing a solid-colored background from an image, called that because removing the color (chroma) and leaving only the subject is sort of like looking through a keyhole, or so they thought back when it got its name.
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You probably know that movies and TV run on blue screen or green screen effects, whether it’s for blockbuster feature films with astounding visual sequences, or something as simple as standing in front of a weather map in a report from your local TV station.