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Author Steve Wright explores the new features found in the 3D digital compositor Nuke 6. The course introduces the RotoPaint node for drawing and painting effects, the Keylight keyer for creating mattes and composites, and the SplineWarp node for warping images. The course also explains how to merge keys, animate with keyframes, and create image-based blurs. Exercise files accompany the course.
Nuke 6 New Features was created and produced by Steve Wright. We are honored to host his material in the lynda.com Online Training Library®.
Let's take a closer look at how to use the parameter tabs with the Clone tool. On the Common tab, for example, you could change the transparency. We'll put that back to default. On the Transform tab, watch what happens now when I change the transform. I'm not transforming the offset to the source image. I'm transforming the strokes themselves, you see that. So, I'm going to lower that down a little bit there, so that we can go look at the Stroke. Now here, you can change the brush size, so we can make the size larger or make it harder. I'll put those back.
Then on the Clone page, this is where you actually can adjust if you need to the offset from the source. So, the Clone tab translates X and Y is the offset to the source plate whereas the Transform X and Y is the brushstroke itself. Back to the Clone tab, there's something very important on here. Round to pixel. Let's push in. I'm going to turn the overlay off from the screen so we can get a better look.
To make this next point more clearly, I'm going to edit the translate X and Y values, so the pixels are offset by half a pixel and you can see how they've softened. The clone looks a lot softer than the original eyes. That's what round to pixel is about. If you click round to pixel, it ignores the floating point offset, so the pixels are no longer filtered. As a result, the clone is just as sharp as the original. However, it's going to be slightly off. In this case, it would be off by half a pixel in X and Y.
So, if you use this on a low resolution picture like standard def video, that's going to shift the position by quite a bit and may not be workable. You can use it on a high res picture like a 2K or a 4K and you wouldn't see the shift in position hardly at all. To edit the points of a stroke, it's the same drill as before. We'll select the Selection tool. Turn the overlay back on so we can see our stroke. We have to allow paint selection. There is our control points and now we can edit the points in our Clone tool stroke.
The Clone and Reveal tools have an extra option up here in this top menu. I'm going to close this Property panel a bit to show you. If we unfold that, this gives you some additional options when you select the Clone Brush. You can type in translate X and Y values or rotates and scales. You can set the center position and turn on the round to pixel feature right here, so that your next stroke can be done by the numbers. But normally you'll leave that off. Now that we've seen how the Clone tool copies pixels from within the same frame, next we'll take a look at the Reveal tool to see how it copies pixels between different frames.
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