11/21/2023 0 Comments Chroma key final cut pro key inMy background video was shot at the Getty Museum in Los Angeles. ![]() What I want to do in this article is cover the basics of keying and how to fix imperfections in your green screen video for a better end result. Marrying the two video clips together in this way is called 'Compositing'. Everything that is not green is left alone. The 'Keyer' effects filter in FCP looks at the green screen video and turns everything that is colored green transparent allowing the background video to show through. Connect it to the Primary Storyline, over the background video. In FCP, place some background video into the Primary Storyline and add your green screen video. Place a person or an object in front of a green screen background and record to video. All it takes is a little tweaking and a lotta heart.Download the ePub iPad/iPhone version of this article.Ĭhroma Key (greens screen) effects are becoming more popular everyday. Light Wrap is very subtle, so look carefully.įinally, I flipped the background image upside-down, and positioned the heart lower in the frame to make it look like he is standing on the stage. Pick the blend mode that provides the cleanest results. Try changing the Mode, while watching the edges of the foreground image. This adds background color to the edges of the foreground, which makes the two layers blend more seamlessly. Next, to blend some of the background color with the foreground image, twirl down Light Wrap and slide the Amount up. Move gently when making these adjustments, keep checking how the image changes. Again, we are making these adjustments to get as close as we can to pure white/pure black and no shadows or shades of gray. Next, at the top, is the Luma adjustment. Always by looking at the matte and trying to get the foreground solid white, with no shadows in the middle of the image. This allows you to adjust how Final Cut Pro X perceives the levels of the image, without actually changing the picture quality itself.īecause there are so many reflections on the heart, along with shadows under its feet, I’ll tweak the Levels to get the cleanest key that I can. Instead, twirl down Matte Tools, then twirl down Levels. Normally, we’d use the Fill Holes setting, but this only makes things worse. Currently, the dancing heart is gray, which means it is translucent. Our goal is to make the foreground completely white, which means it is totally opaque, and the background completely black, which means it is totally transparent. It is ALWAYS best to adjust a key while watching the matte. ![]() Time to tweak.Ĭlick the middle View icon to switch to Matte view. This removes the white background, but it also removes a lot of the heart, itself. Open the Inspector ( Command+4), click the Video tab, and check the Invert checkbox. By default, the Luma key removes the darkest portions of an image which is the opposite of what we want. In the Timeline, stack the two clips so the foreground clip – the heart – is above the background clip.įrom the Effects browser, drag Keying > Luma key onto the foreground clip. And, with the recent 10.3 update to Final Cut Pro X, the Luma Key has even more adjustments than it did before. ![]() To do this, we will use a Luma Key to make the white background disappear. I want to composite this dancing heart over the lights of a stage concert. Unlike a green-screen key, the background here is pure white. For instance, here is an animated dancing heart (courtesy of ). So, here’s the question: When do you use a Luma key? And the answer is: When you don’t have any color to work with. OK, I’ll just say this right at the top – this article has a lot of heart in it.
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