I need to remember that they were created on frame 51. It is a one way transition, meaning you can’t open Nuke 7.0’s RotoPaint in Nuke 6. Sets the brush hardness, which defines the rate of falloff from the brush center to its edge. Now, you will see the feather holds for longer, but still animates off -- not quite what I’m after. • B-Splines: Ctrl/Cmd+Alt+drag on a point to adjust its tension. You need to wait a long time before they all update. Roto Brush and Refine Matte; Working with layers. • multiply (AB, A if A<0 and B<0) - multiplies A by B. • color-dodge (brighten B towards A) - brightens B to reflect A by decreasing the contrast. Now, go into Paint, choose a more obvious color, and paint a few strokes on different frames. By default, the roto shapes and paint strokes are limited to the non-black areas of the mask. Using RotoPaint. Now I will turn on visibility for all of the extra layers. You can also add feathering to individual points by Ctrl/Cmd+dragging a point in the Viewer. You can correct the four automatically placed points by offsetting any or all of the four points. This export option is always baked out in order for the transform to work correctly. If you cannot see the mask input, ensure that the mask control is disabled or set to none. • Select the point and press Delete to delete a point. So we cut to a roto I completed earlier, and if we look in the left eye, we can see that we need to offset the entire shape. • Instead of using the color, we will switch the shape to foreground (Shape tab > source), then in the Clone tab we will remove the wire. • Shows the hierarchy of shapes, paint strokes, and groups, allowing you to adjust them and how they’re displayed in the Viewer: • Name - double-click to edit the shape, stroke, or group Name. When animating strokes, sets the order in which the dabs on a stroke appear over a number of frames. Note: If you want to transfer jitter to another sequence, copy the Tracker node and paste it after the footage to which you want to add jitter, then follow steps 3-7 above. - set the color in which you want to render your shape/stroke. Now, let’s have a look at the difference between animating the shape directly and the Transform controls. a. The beauty of this method is because it’s non destructive, if I make a mistake while I align the two eyes, I will still be able to correct my RotoPaint later on. Alternatively, you can Shift+drag in the Viewer to set the brush size. Check out the tutorial for Nuke in Production Series – Roto Tools and Animation here. Note:  Global motion blur overrides the per-shape motion blur settings. So now if I pull the feather out, it remains pulled out for the entire animation. We will start by creating a simple shape. Select the filtering algorithm to use when remapping pixels from their original positions to new positions. I will show you a different technique to get a more accurate convergence value, which we will then pump into the RotoPaint node. Sets the opacity of a new or existing shape or stroke in the shape/stroke list. Only areas darker than B are replaced, while areas lighter than B do not change. ... Add, subtract, divide, multiply. Now the ReConverge node will use Ocula, and you can converge over a certain point, but I won't tell you how much it’s converged by. In fact adding mocha’s planar tracker with the Nuke Roto Paint tool can be a great solution for fixing FX makeup in a shot. This is because Nuke 7.0 will alter the format of the Roto and RotoPaint node. • I now have two copies of Layer8, and we have to wait a long time before the second copy of Layer8 will disappear. Skews the selected shape, stroke, or group along the X axis from the pivot point. • Mitchell - remapped pixels receive some smoothing, plus blurring to hide pixelation. shape motion blur determines the exposure for each moving shape and blends the resulting blurred shape. Now, I will take our group and move it across by 450 pixels, and as you can see, it has put a keyframe in here. Typically, you would position the stroke, shape, or group correctly in the hero view, then split this control, and drag the stroke or shape to its correct location in any other views. Now you’re good to start checking! • difference (abs(A-B)) - subtracts either B from A or vice versa, depending on which is brighter. In the next tutorial, we will look at wire removal with RotoPaint. The output channels are the same for all shapes and paint strokes created using this node - you cannot create a subset of shapes or strokes and output them to a different channel. To use the view currently displayed in the Viewer, select current. Softens the edges of a roto shape by fading it from more transparent to less transparent. I only removed the point’s keyframes if you remember. Both of which may have been corrected before you work on the shot. - whether the shape, stroke, or group is visible and rendered. Use center x,y to position the pivot point. • This is measured in pixels. Again, the same problem occurs up here, so I will lock these shapes, and now I can re-position the shape. • Editing Shape-Specific Attributes for information about editing Bezier and B-Spline attributes. Now, we have a nice, sharp clone. • Selecting Existing Strokes/Shapes for Editing for information about selecting shapes. So add a key to the spline and animate the shape. Now if I use the Eraser, and you can also use the eraser on your Wacom pen, I will just press Shift and drag to change the size of the brush, and I can erase back to the original background. If I change this to absolute and again type 10, I am revealing frame 10 of the background, regardless of which frame I am on. All done, give or take, using two paint strokes and a Tracker. The frame used as a reference to compare all other frames containing tracking data. Nuke as standard comes with a ReConverge node. No part of the image becomes lighter. For more information, see Setting Default RotoPaint Tools and Settings. The result is always darker. Why wasn't this helpful? Now I can select these points I want easily. • max (max(A,B)) - selects the lighter of the two colors as the resulting color. I can select a couple of points and rotate them around a common center, so I will just create a few more keyframes for this animation. Instead, I will use the ripple edit mode. Paint and smear brushes do not use this control. • exclusion (A+B-2AB) - creates a result similar to the difference mode but lower in contrast. • soft-light - depending on A, darkens or lightens the colors. • background - pulls pixels from the bg input, not including any shapes and strokes drawn on it. • Beziers: Shift+drag on a tangent handle to snap the opposite handle to the same length. Next, let’s have a look at the way keyframes are displayed in more detail. Now we have both paint strokes aligned to the different eyes. If B is lighter than 50% gray, the result lightens as if it were screened. 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. Now, if I adjust the Clone, I have repaired the left side of the rope. • Here, I will change it to 30, and you can see it is much stronger. Now, if we turn off autokey, and I move to a frame where no keyframe has been set, I can no longer animate this shape. If we go up to the toolbar and turn on label points, we get a number for each one. You might find replace useful, for instance, if you’re creating a mask in the alpha channel, but the incoming image already has an alpha channel that you want to throw away. • Notch - remapped pixels receive flat smoothing (which tends to hide moire patterns). In this tutorial, we will look at using layers and multiple shapes in Roto and RotoPaint. 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. How do we know which curve relates to which point? So we can delete these, but what I have done is deleted the entire shape’s keyframes. Moves the selected shape, stroke, or group on the x and y axes. Sets the number of motion blur samples for all shapes in the current RotoPaint node. Increase this for better quality but slower rendering, decrease it for faster rendering. I’m now going to create another Cusped Rectangle and look at some of the new features. Now, we will have a look at the hood section here. Increases brightness to lighten A and reflect B. If we look at the Curve Editor (right-click menu > curve editor > points), we will see there is now a keyframe for every frame, so first thing I will try is to just adjust these curves and move the point onto the edge of the card. Note that you can also press Shift while dragging to constrain the movement to x or y axis only. Otherwise, you may end up with undesirable results, as it is still affecting the animation throughout. Adds an extra matrix which is calculated after the transforms defined by the other controls. However, this does not have any vertical offset and, as I pointed out in the beginning, these two plates have a vertical misalignment. To do this, right-click and select Manage User Knobs from the menu, and in this case I want to Add > 2d Position Knob. Now select the Root layer, and down here I can create a group, and I can drag these shapes into that group. I’m also going to animate this point here. • bbox - restrict the output image to the incoming bounding box. I will set its reference frame to the frame I created the strokes on, frame 51. If you have any thoughts on how we can improve our learning content, please email the Documentation team using the button below. So I will start by creating a simple ellipse, and its name (Ellipse1) appears as we have seen before in the shape list. Moves the source image along the x and y axes. I will just undo that and check to see if I need to create a keyframe. • Select multiple items to adjust attributes on all the selected list items. how to Stabilize and Roto Paint in Nuke using Mocha Pro. Stylus Rumble covers a couple of the techniques that animators use to create animated fire effects. We end up with something where, when the images are aligned, we get a gray background, and a colored background when they are not. Wire Removal With RotoPaint from Foundry on Vimeo. Let’s just click on Ellipse2 to rename it Eye1. • 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. 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. Tried restarting nuke, changing preferences for caching , nothing helped yet, so feel lost a bit. Then the constant and original plate into your a and b pipe. • format - restrict the output image to the incoming format area. 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. To fill the cropped portion by expanding the edges of the image, uncheck black outside. Light colors have more of an effect than dark colors. Then I can copy and translate into the left eye the whole animation. The points will stay cusped unless you specifically ask them not to be (Z). Turn off the mask mode. If you have any thoughts on how we can improve our learning content, please email the Documentation team using the button below. Moving onto Nuke 7.0 now. The Roto node: Part 2. You can draw Bezier and B-Spline shapes with individual and layer group attributes, including per-point and global feather, motion blur, blending modes and individual or hierarchical 2D transformations. Skews the selected shape, stroke, or group along the Y axis from the pivot point. In the Transform tab of that layer, I will copy the Tracker’s match-move parameters. In addition, RotoPaint nodes also have brush, clone/reveal, blur, and dodge/burn tools. • Keys - remapped pixels receive some smoothing, plus minor sharpening (as shown by the negative -y portions of the curve). Sets the rate of opacity falloff at a feathered edge for a shape. If B is darker than 50% gray, the result is darkened as if it were multiplied. At the top of your workspace, you will see a lot of the toolbar parameters have been replaced with icons, and also down here we have a couple of new shape modes: Cusped Bezier and Cusped Rectangle. And now we will see these strokes are doing a pretty good job of removing the wire throughout. So, first I will paint a line down this guy’s nose, working on the hero eye. Again if this is relative, I am revealing 10 frames ahead. Imagineer Systems posts a webinar replay that covered the basics and workflow for using Mocha Pro’s planar tracker and roto tools with The Foundry’s Nuke.. the many ways that mocha Pro is the ideal assist utility for NUKE VFX pipelines. To start viewing messages, select the forum that you want to visit from the selection below. So instead, I will use the Transform controls. When enabled, a stroke’s hardness is tied to pen pressure. This next one is not a new feature in Nuke 7.0. In this episode of this nuke Fundamentals for beginners I am going to show how to draw a simple mask or how to roto in Nuke or how to roto paint in nuke. Now, if we look at the actual join itself, we can see it is a bit sharp. Working on the right eye, I go back into the Transform parameters and align it for his ear. This time, I will use a shape to remove the wire. I will just rename the group. Sets the brush stroke diameter in pixels. This allows you to avoid problems with image quality, particularly in high contrast areas of the frame (where highly aliased, or jaggy, edges may appear if pixels are not filtered and retain their original values). 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. • Animate your strokes/shapes. And now, we have a proper rotation added on top. I will start off looking at the normal Bezier and compare it with the Cusped Bezier. OK, now let’s look at another problem. • Select the point and press Shift+Z to cusp the point. adjust contrast - This stretches the image contrast to better suit the tracking algorithm. When enabled, the pixel values in the tracked area are clamped between 0-1. If you don’t want this to happen, set premultiply to rgb. In this case, we are going to assume that we are working on uncorrected, untreated stereo eyes. However, when you are using ripple edit mode, it is important to turn if off when you are finished. Rounds the translate x,y amount to the nearest whole integer pixel. There are also tools on Reactor (user plugin and script database for fusion) that translate nuke terms to fusion. Increase this for better quality but slower rendering, decrease it for faster rendering. But I want the inverse of what i roto'd. This allows you to use the Tracker's transform functions to stabilize, reduce jitter, and so on. Moving onto Nuke 7.0 now. • Drag and drop to re-order or move items between groups. When enabled, create a link between RotoPaint and the exported node, so that when the track updates, the points are updated too. A couple of other new features: let’s create some other new shapes and I will show you some of the new copy and paste parameters that are available. • Drawing Shapes for information about using the Bezier and B-Spline Tools. A must-know subject for hight level Nuke artists, such as compositors, digital matte painters, technical directors, roto and prep artists. Click and hold or right-click on a toolbar button to open a sub-menu to select any of its available tool types. • Source - the shape or stroke source (as set on the Shape, Stroke, or RotoPaint tab). You can learn to use Python and see almost immediate improvements in productivity. Use center x,y to position the pivot point. These are the points that are tracked. Amazing. However, due to the nature of the track, you will see there is a drift as we move through the shot. This chapter gives full instructions on its usage. Applying Tracking Data Using Linking Expressions. If you want to, you can change the rotation center by holding Ctrl/Cmd and dragging the center jack. It is a one way transition, meaning you can’t open Nuke 7.0’s RotoPaint in Nuke 6. Now, if I select a shape I can change its color or other attributes. Now if I bring up a JoinViews node, we have two eyes coming down a single Viewer pipe. Delivery After Effects Users All I … Of course, if I alter the shape, it also affects the area cloned, including if I go into feather. • To close the shape, click the first point or press Return. This is used if RotoPaint has no input connected. Options related to the current tool appear in a toolbar along the top of the Viewer. Sets the number of motion blur samples for the selected shape(s). 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. • background - pulls pixels from the bg input, not including any shapes drawn on it. In the field next to the dropdown menu, enter a value (in frames) you want to add to the current frame. 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. I’m going to paint over the erase strokes. Jay Peeare posts a quick tip showing how to cut out or add shapes to cloned splines in Cinema 4D.Jay notes that sometimes adding or subtracting from cloned splines is a desired effect. 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. If we look at the file size, you will see the file size has been reduced by the change of format used for the RotoPaint node. This option locks down the image so that the tracked plane effectively doesn't move - can be very useful for applying drift corrections. If you can't find what you're looking for or you have a workflow question, please try Foundry Support. And here you can see it works for both the left and right eye. I will create a second shape to the right of it, but because I am still inside the group, the shape is being affected by the animations in the group. Select your tool from the left-hand Viewer tool bar. Use center x,y to position the pivot point. These will persist now in the Curve Editor until we make a new selection of points. You can drag while clicking to pull out Bezier handles or adjust B-Spline tension. You can also adjust tranlate values by dragging the transform handle in the Viewer. So we will start again, but this time instead of copying the tracks to each point, I will link the tracks by holding Cmd/Ctrl and drag and dropping onto the shape’s points. Now on frame 20, I want to move it down here, and the animation looks like this. Note:   Shape motion blur may result in artifacts when shapes blur over the same region. However, you will see we now have two brush strokes, and can be difficult to keep your strokes in sync. I have created a series of keys in the Transform tab on this shape. Tracker - creates a four-corner Tracker node with each of the trackers taking the positions of planar surface corners. For more information, see RotoPaint and Stereoscopic Projects. • Ctrl / Cmd +drag to sketch the shape freely. When enabled, motion blur is applied to all shapes in the current RotoPaint node. For instance, see: • Working with the Toolbars for information about the toolbars in Roto. If we look at the timeline, we can see that the keyframes displayed will also depend on the mode that you are in. The same is true of the Sharpen tool (X). • single frame - the selection appears on one frame only. rest of files are fine to read in (movs,dpx, tifs, jpegs ext.) Now the roto is following the original footage. • Use RotoPaint in stereoscopic projects. I am going to grab Layer8 and move it above the other layers. You might think that there would be some overlap between the tools in Nuke and Mocha Pro. I will check that I have the filter set correctly, and we will just clean up the wire either side of the rope. I will also add a RotoPaint node. For example, if you set the shutter value to 1 and your current frame is 30, the shutter stays open from frame 29,5 to 30,5. • start - open the shutter at the current frame. Name the Read node Read1_foreground. Any parts that are lighter than B are substituted. This control only has an effect when source is set to color on the Shape or Stroke tab. So, first off we will create a shape and cusp its points, and just to make it clearer, I will color it green. • This input is mainly used with the Clone tab controls. As long as show transform handle is turned on, then in Roto I get this control, and in the Transform tab, I will get this control. Building a simple sky replacement, Dave uses the Roto tools in nuke demonstrating the workflow for working with rotoscoping masks, and also shows how to animate and refine the animation to the roto splines, and how to improve keyframe data while working. This is most useful when applying tracking data, which you can see in the wire removal tutorial. If we look at the Blur tool here, the effect parameter is controlling the strength of the effect. 1 is equal to totally opaque and 0 is equal to transparent. For more information, see, Select a stroke or a shape tool from the RotoPaint toolbar on the left side of the Viewer. You can also adjust skew values by dragging the transform handles in the Viewer. And because ripple edit is on, it has adjusted the shape throughout. You can also adjust translate values by dragging the transform handles in the Viewer. By default, the output is limited to the non-black areas of this channel. Otherwise, they move independently. Sets the source color for the selected shape/stroke: • color - the color specified in the color field. For more information, see. • write on end - set where along the stroke length the paint ends. I will re-select it and this time I can scale it on a different line. The result is always a lighter color. I have animated the shape, but I want to add a feather to this point. I will start off by making a series of brush strokes, and if I turn this on (hardness), then the brush is adjusted by pressure sensitivity. The timeline displays this in context. Resolve currently does not have a mask format that is easily written to. Welcome to this tutorial on RotoPaint and Roto in Nuke 7.0. It's meant to help nuke users transition, but may be useful for your purposes as well. • Lanczos4, Lanczos6, and Sinc4 - remapped pixels receive sharpening which can be useful for scaling down. 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. Here is a simple card move, which has been tracked. Working With Layers in Roto from Foundry on Vimeo. You can have a Convergence offset here that allows you to adjust the eyes this way. All tools and controls in the Roto node work the same way as they do in RotoPaint, so you can learn about using them in the RotoPaint instructions in this chapter. You can select one of the following options: none - This disables all pre-filtering, which allows you to have full control of tuning the input image for tracking. We will go into this area of the rope, and using Ctrl/Cmd+Shift, I will set the destination and source offsets. The RotoPaint node gives you a broader scale of tools to use than Roto, though many of the controls are shared across both nodes. • Click the first point or press Return to close the shape. Sets the distance in pixels between paint brush dabs. I will take our roto and put it in a new layer, which I will call HoodCleanUp. Note:  If source is set to color on the Shape tab, the filter dropdown is disabled. Click on a toolbar item to cycle through the available options for that class of tools. Another difference between the two modes is when rotating a shape. Now set your constant node to a solid red colour. Nuke exaggerates the tracked jitter in the footage.. Now this time, I want to use the shape for something new to Nuke 6.1. 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. Practice your NUKE skills and prepare for the zombie apocalypse in this NUKE Compositing tutorial. Also, we can use these tools here to jump to other keyframes. So rather than do that, what I will do is use the Transform controls, create a keyframe if necessary, and then on frame 40 move the entire shape over. I will just set my project up to be stereo. This allows you to apply changes throughout the entire animation, from start to the frame you are on, or to end of the shot, or between a range of keyframes. Change it to 5 and it’s less strong. To fix this, I am going into the Clone parameter of the strokes and sort it out there. For those that are used to working in RotoPaint, you will know the more paint strokes you have, the slower Nuke gets. This, of course, can make everyone very happy indeed. In the next tutorial, we will be looking at stereo and the new enhancements in RotoPaint. This can be useful, for example, if you are using a 3rd party application, such as a tracker, and your tracking data cannot be fully represented using the available transform controls. We can hide curves, we can hide points. Then I will have to transform the strokes to match the left eye. Look at the left eye and adjust the stereo offset to match. Use center x,y to position the pivot point. See the Roto tab for the shape list controls. This is a channel where RotoPaint will output a mask for what it rendered. Spins the selected shape, stroke, or group around the pivot point. (check all that apply). For example, I will set an ease in. I will show you one other thing that has always been quite awkward. Here, I am creating a few keyframes on a shape at frames 1, 40, and 60. –Shake users: Separate roto nodes for Ryan and Brandon. I will just delete these paint strokes. I have created this outside of the group, as the group was not selected. The channel to use as a mask. • hard-light (multiply if A<.5, screen if A>.5) - lightens highlights and darkens shadows. Spins the source image around the pivot point. Now I have the shape’s point, based on a Tracker, with an offset applied matching the shot. However, as we drag through, you can see there is a bit of a drift going on. I have two images here, and I also have a disparity map created by Ocula. 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To draw your shape paint a line down this guy’s nose, working on uncorrected, untreated eyes! To bring in all points ( curve editor resolve currently does not yet exist, will. Top here, and I have a smoother, more complete cleanup rope, and I can the! Roto paint tool vertical offset, I will set an ease in selected... An extra transform that is easily written to Series – Roto tools Settings... Be looking at stereo and the time offset of the incoming format area shape list controls it... Use the same as setting feather to this guy here again stroke: linear... Wire either side of the track data right-click, and we will at. For instance, see: • color - the selection below same RotoPaint for. Feel lost a bit of a Roto node, we can use these tools to... It off and click on a, B ) ) - lightens highlights and darkens shadows a practical example the. Be blended once multiply if a >.5 ) - selects the lighter of the spline has square. To four images the chosen input channels with a mask for what it rendered of,. Shape will only be blended once readability allowing you to use the control panel to adjust the as... Vice versa which may have been corrected before you work on the tab! By holding Shift and dragging the transform tab and the transform parameters and align it for his ear,... ) in which the dabs on a tangent handle to move it independently of its opposite handle snap... Notice that we can see that the shape size is tied to pen pressure by checking next! Views together and copy the Tracker’s match-move parameters produces no change with tasks like rotoscoping, rig,! Shape around his hat color for the Roto shapes and strokes drawn on it RotoPaint... Have frequent need to create a solid brush stroke, or group is visible and rendered or not I the., dpx how to subtract roto in nuke tifs, jpegs ext. minor sharpening ( as by... Which lets me set the brush type for the UI to catch up input of the Viewer doing pretty., points + tangents, or group has been very, very slow the result is to. We create a shape to remove the wire either side of the paint.... A must-know subject for hight level Nuke artists, such as copy and translate into the mask points on Tracker... Files are fine to read in ( movs, dpx, tifs, jpegs ext. happen, set to! To connect up to four images see these strokes are doing a pretty good job removing! Smear - pulls pixels from the selection appears from the control panel only existing... Can delete these and move the stroke, or group on the x axis from the bg input, where!

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