For more information, see, Draw one or more strokes/shapes in the Viewer window. Three random shapes, if I select one shape, right-click, and go to Copy, it tells us we have one curve. The roto node in Nuke also is significantly different from Fusion's more basic masking nodes. If you press Shift when dragging the jack, you can avoid snapping to angles. • The roto node's sophistication gives it great power and flexibility to solve a number of masking problems. Inverts a channel’s values. • Lanczos4, Lanczos6, and Sinc4 - remapped pixels receive sharpening which can be useful for scaling down. - set the shape outline color to appear in the Viewer. Set it to “none,” versus “add” or “subtract.” Why peek through a mask to see what’s being worked on? We end up with something where, when the images are aligned, we get a gray background, and a colored background when they are not. This creates a keyframe for the spline, and also creates a keyframe for the Transform tab when first making the shape. • Cubic - remapped pixels receive some smoothing. • Clone tool: Ctrl/Cmd+click and drag to set the clone offset. I will set their lifetime type to all frames, and I have a Tracker here that has tracked both sides of the rope. Move down into frame 40 and add the rotation. ... Add, subtract, divide, multiply. Click to create the selected node containing the track data. Use center x,y to position the pivot point. • Simon - remapped pixels receive some smoothing, plus medium sharpening (as shown by the negative -y portions of the curve). Now this time, I want to use the shape for something new to Nuke 6.1. • Ctrl/Cmd+Alt+click to add points to an existing shape. Here I have a Tracker, which is tracking the hood and the wire crossover. - set the shape, stroke, or group blending mode. We have the choice of viewing the points curves, points + feather, points + tangents, or all related curves. The roto shapes and paint strokes are rendered into these output channels. • range - the selection appears from the specified from frame up to the specified to frame. And now we will see these strokes are doing a pretty good job of removing the wire throughout. For more information, see. Allows you to clone or reveal pixels from a different frame. You can use the checkboxes on the right to select individual channels. Note that selecting rgba premultiplies the alpha against itself (a*a). This method also avoids match-moving a rasterized image, which would have been the case if I added a match-move after the RotoPaint node. We can hide curves, we can hide points. I have tracked, stabilized, and painted through the footage, and have deliberately tried to bloat this script. This chapter gives full instructions on its usage. When animating strokes, sets the order in which the dabs on a stroke appear over a number of frames. To offset a point, simply click and drag it in the Viewer to the correct position. For more information, see RotoPaint and Stereoscopic Projects. As this can get quite cumbersome, we will just bring in the points, and here they are. We can also go further and put them in a layer and add another layer or transformation, and we can do this as deep as we like. Time offset is either relative to the current frame (-1 is the frame previous to the current one) or absolute (1 is the first frame in the clip). If you are looking to add more traditionally animated elements to your motion graphics work, or you are a beginner animator, then Tracey Strong’s tutorials are a great place to start. Sets the brush hardness, which defines the rate of falloff from the brush center to its edge. So I want to add a custom knob, in Nuke’s terms, into the Roto node. • blur - blurs the area under the paint stroke. This export option is always baked out in order for the transform to work correctly. So I’m going to lock that shape here, which I can also do up here (Roto/Rotopaint tab > locked). • single frame - the selection appears on one frame only. Before image patches are compared, the selected filter is applied. In addition, the Mocha Pro plug-in will be incorporated into a class to demonstrate its beneficial tools available to artists. It is difficult to select these points without selecting unwanted points on the other shape. For instance, see: • Working with the Toolbars for information about the toolbars in Roto. I will set its reference frame to the frame I created the strokes on, frame 51. So I will select the stroke, go into the Clone parameter, set a key, and I will just turn off the overlay for the moment by pressing O. If B is lighter than 50% gray, the result lightens as if it were screened. Sets the last frame for start to frame and range lifetime types. Blending with white inverts A, while blending with black produces no change. If you look at the left eye, we can see the paint stroke doesn't line up. • View - displays the view(s) the shape/stroke appears in. Now, let’s look at some of the other changes in Nuke 7.0. Sets the distance in pixels between paint brush dabs. In the next tutorial, we will look at painting through geometry. And now, we have a proper rotation added on top. Increase this for better quality but slower rendering, decrease it for faster rendering. Tracey Strong Takes the Mystery Out of Animating Fire Traditionally With Some Great Tips. Now that I have a rough alignment, I will bring up a Roto node, and we will view the stabilized image. So let’s step back to frame 40, and here (spline key) it tells us that we are on keyframe 2 of 3. The Roto node: Part 2. I will Transform the right eye, add an Invert, and then Dissolve, half mixing the two eyes together. I will select Layer2 and then all of the other layers. In the Read node’s properties, navigate to the /Nuke/to Nuke/[shot number]/foreground/directory to set the file to that shot’s foreground image sequence. • Impulse - remapped pixels carry their original values. Now I will copy the Translate parameter into the left eye. And now you can see we have got that aligned, we will go back to this guy here again. Alternatively, you can Shift+drag in the Viewer to set the brush size. The Foundry Visionmongers Limited is registered in England and Wales. Background input - adding a background automatically creates another bg input allowing you to connect up to four images. This is most useful when applying tracking data, which you can see in the wire removal tutorial. Note:  If source is set to color on the Shape tab, the filter dropdown is disabled. If your feather values are negative, the feather effect is inward. If an input is connected, this control has no effect. Now, if I select a shape I can change its color or other attributes. So we can delete these, but what I have done is deleted the entire shape’s keyframes. When enabled, motion blur is applied to the selected shape(s). - whether motion blur is applied to the shape. CornerPin2D (absolute) - set the to positions to the corners of the planar surface, and the from positions to the dimensions of the currently selected node. This option places the incoming image entirely inside the planar surface. If we go down to the Curve Editor and look at the meta curve, we will see that we have keys here for all the shapes keyframes, as well as the attributes and transform. So, we will now create a keyframe here, apply my offset, and I go through the shot and adjust these values to suit. So now I would like to look at a more complicated scenario. One useful feature in Roto and RotoPaint is the ability to add Trackers to a shape’s points. Brush types selected from the control panel only affect existing strokes. • Now I will turn on visibility for all of the extra layers. Now you’re good to start checking! To leave the shape open, press Esc. If you want to, you can change the rotation center by holding Ctrl/Cmd and dragging the center jack. I will re-select it and this time I can scale it on a different line. All done, give or take, using two paint strokes and a Tracker. Practice your NUKE skills and prepare for the zombie apocalypse in this NUKE Compositing tutorial. I will turn this on and adjust the shape here. For more information, see, Select a stroke or a shape tool from the RotoPaint toolbar on the left side of the Viewer. When enabled, motion blur is applied to all shapes in the current RotoPaint node. For example, if you set the shutter value to 1 and your current frame is 30, the shutter stays open from frame 29 to 30. • custom - open the shutter at the time you specify. Use the control panel to adjust or fine-tune your shape(s) or stroke(s). So file size and performance are two major enhancements in RotoPaint and Roto in Nuke 7.0. • square - the starting point of the spline has a square end. This next icon Constant Selection means that, if I have a shape selected and I click away, it does not deselect the shape looking on the image. If you set this to something other than none, you can use the checkboxes on the right to select individual channels. This time, I will use a shape to remove the wire. Then, we can improve this further by utilizing the ripple edit mode. The timeline displays this in context. global motion blur correctly accounts for interaction between motion blurred shapes.This may be more expensive than the shape motion blur since it may blend each shape for every sample. Why wasn't this helpful? Softens the edges of a roto shape by fading it from more transparent to less transparent. When disabled, the effect is applied to the entire mask. For example, if you set the shutter value to 1 and your current frame is 30, the shutter stays open from frame 29,5 to 30,5. • start - open the shutter at the current frame. You can drag while clicking to pull out Bezier handles or adjust B-Spline tension. If we open up the script we were just looking at into Nuke 7.0, we will be prompted to Save as a new script. • Mitchell - remapped pixels receive some smoothing, plus blurring to hide pixelation. For more information, see Editing Existing Stroke/Shape Splines. You can also adjust skew values by dragging the transform handles in the Viewer. Paint and smear brushes do not use this control. When enabled, the pixel values in the tracked area are clamped between 0-1. You can drag while clicking to pull out Bezier handles or adjust B-Spline tension. • difference (abs(A-B)) - subtracts either B from A or vice versa, depending on which is brighter. Now if I bring up a JoinViews node, we have two eyes coming down a single Viewer pipe. However, you will see we now have two brush strokes, and can be difficult to keep your strokes in sync. The channel to use as a mask. Now, if we run through the animation, you will see the point I just moved is only animating through frame 60 and 70. Nuke exaggerates the tracked jitter in the footage.. Then the constant and original plate into your a and b pipe. Lastly, I will create a keyframe at the end here. This is only displayed if you have set up more than one view in your Projects Settings (typically, if you’re working on a stereoscopic project). So if I pull it out on frame 10, you will see it animates off, as the feather has the original keyframes. This is used if RotoPaint has no input connected. So, now in Nuke 7.0 we are looking at the same shot we were looking at before, but we are looking at the untreated eyes in sRGB, not Log, so we can see more detail. As I move down through the shot and change the shape, I am adding keyframes, and as you can see, we will now have a very basic animation. This is a channel where RotoPaint will output a mask for what it rendered. Press E to increase the feathering of selected points, or Shift+E to remove the feathering. You can specify the frame in the from control. If B is darker than 50% gray, the result is darkened as if it were multiplied. This is very important, enabling us to see the new features of RotoPaint, using the colors in the UI, red for left and green for right. If I take Layer8 again and put it back down to where it was, it is vastly faster than what we had previously. So far, we have been working with just one point. • Drag and drop to re-order or move items between groups. • format - restrict the output image to the incoming format area. Nuke features a vector-based RotoPaint node for help with tasks like rotoscoping, rig removal, garbage matting, and dustbusting. Less extreme than the hard light blending mode. • Use RotoPaint in stereoscopic projects. This is because Nuke 7.0 will alter the format of the Roto and RotoPaint node. • The result is always a lighter color. I have created a series of keys in the Transform tab on this shape. The trick is to turn on round, which changes the translate to the nearest pixels, or to use an Impulse filter, which has the same result. Now the roto is following the original footage. The frame used as a reference to compare all other frames containing tracking data. When enabled, only apply the effect to the edge of the mask. Controls the strength of blur and sharpen brush strokes. This option locks down the image so that the tracked plane effectively doesn't move - can be very useful for applying drift corrections. Click on a toolbar item to cycle through the available options for that class of tools. • over (A over B) - the colors of the two images will not interact in any way, and Nuke will display the full value of the colors in A. • overlay (multiply if B<.5, screen if B>.5) - depending on A, multiplies or screens the colors. Now to work out the vertical offset, I will make the Grade a little stronger. • smear - pulls the pixels under the cursor in the direction of the paint stroke. For example, a value of 0.5 corresponds to half a frame. • Drawing Shapes for information about using the Bezier and B-Spline Tools. Use center x,y to position the pivot point. Note that you can also press Shift while dragging to constrain the movement to x or y axis only. Practice working with the pen tool. If we take a look at the file size of this script, it is 6 MB, so one node has bloated the script up to 6 MB already. When enabled, a stroke’s opacity is tied to pen pressure. Disabling this checkbox is the same as setting the channel to none. Now we have a smoother, more complete cleanup. As you can see, the interface is quite slow. The result is always darker. Like with difference, blending with white inverts A. Blending with black produces no change. I’m going to paint over the erase strokes. You can also tie a stroke’s hardness to pen pressure by checking hardness next to pressure alters. Moving onto Nuke 7.0 now. Output mask channel. • exclusion (A+B-2AB) - creates a result similar to the difference mode but lower in contrast. Hello, and welcome to this tutorial on the new stereo enhancements in RotoPaint and Roto in Nuke 7.0. Sets the node type to export the track data: CornerPin2D (relative) - warp the image according to the relative transform between the current frame and the reference frame. (check all that apply). This area here lists all the shapes and paint strokes used in the node. • Select a point and press Z to increase the smoothness of the point. Lanczos4 provides the least sharpening and Sinc4 the most. You are able to just click and can adjust them all in one go without having to go to the Lifetime tab, so you have more control and more options available in the editor. You can also adjust rotate values by dragging the transform handles in the Viewer. Now, if I adjust the Clone, I have repaired the left side of the rope. A lower setting will decrease the distance and create a solid brush stroke. B brightens A while preserving highlights and shadows. I will delete the main x position keys, and move the keyframe down to frame 20. • color-dodge (brighten B towards A) - brightens B to reflect A by decreasing the contrast. • Lifetime - the range of frames during which the shape/stroke is visible. It is taking a long time as we are waiting for the UI to catch up. • Click in the Viewer to place points. These will persist now in the Curve Editor until we make a new selection of points. This option is recommended. I now have a choice of creating a key for everything (all), just the spline, transform, or other attributes such as feather, color, invert, etc. With the Cusped Bezier, there are no handles to pull out. Just to make it a bit stronger, I will add a Grade node underneath. So now I will add a new Layer/Group and call this rope cleanup, and I will move both of these 2 clones into that layer. You can also adjust scale values by dragging the transform handles in the Viewer. It’s taken quite a while, and the operability has been very, very slow. • multiply (AB, A if A<0 and B<0) - multiplies A by B. At first, the mask input appears as a triangle on the right side of the node, but when you drag it, it turns into an arrow labeled mask. Sets the source color for the selected shape/stroke: • color - the color specified in the color field. However, when you are using ripple edit mode, it is important to turn if off when you are finished. I will start on Nuke 6.3v8 because there are a number of improvements to the operability of RotoPaint in Nuke 7.0, and I want to remind you of some of the problems that exist in the previous version of Nuke. The advantage of using a group here is that, even though there is only one shape, I can differentiate easily between the shape’s keyframes and the track’s keyframes. These are the points that are tracked. shape motion blur determines the exposure for each moving shape and blends the resulting blurred shape. What if we want to bring in more than one point? This is only displayed if you have set up more than one view in your Project Settings (typically, if you’re working on a stereoscopic project). This next one is not a new feature in Nuke 7.0. Values are in frames, so -0.5 would open the shutter half a frame before the current frame. In this video, we'll see how to set up the roto node for a variety of common production situations. Stepping back into the group, I can now use the mouth’s Transform tab, and we can continue to add these extra layers of animation as deep as we wish to go. I now have a snapshot of the foreground inside this shape, and everything I do to the first group is cloned into this shape. Select the head group, and in addition to the shape’s transform, we can use the group’s Transform tab to rotate, scale, etc. So now we have a roto that is following the shape of the hood, but this is working on our stabilized image and we want it to work on the original image. I now have two copies of Layer8, and we have to wait a long time before the second copy of Layer8 will disappear. Now, I want to work on the corner of this mouth here. Sets the style of the last point for the selected spline(s) and all new open splines: • rounded - the finishing point of the spline has a rounded end. I am going to set the Tracker to Stabilize, and then in the RotoPaint while viewing the Tracker, I can roto the stabilized image, and this makes it easier to see what’s going on. • Shift+drag on the Viewer to change brush size. Use center x,y to position the pivot point. Delivery After Effects Users All I … Ctrl/Cmd+drag on a tangent handle to move it independently of its opposite handle. So, that’s the principle of it, but that’s not particularly accurate. Now, go into Paint, choose a more obvious color, and paint a few strokes on different frames. • B-Splines: Ctrl/Cmd+Alt+drag on a point to adjust its tension. You can correct the four automatically placed points by offsetting any or all of the four points. We will start off in Nuke 6.3, and I will show you the old method of working with stereo. However, let’s say I want to move the whole shape from here to a different position all the way over here. • bbox - restrict the output image to the incoming bounding box. Blending with black gives black and with white returns the color unchanged. I’m now going to create another Cusped Rectangle and look at some of the new features. Where the shapes/strokes are opaque (the matte is white or full) the input channels keep their full value. Any parts of the image that are darker than B don’t change. • Ctrl / Cmd +drag to sketch the shape freely. Tried restarting nuke, changing preferences for caching , nothing helped yet, so feel lost a bit. I will just set my project up to be stereo. 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