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Exploring the new Primatte 5 features

From: Nuke 7 New Features

Video: Exploring the new Primatte 5 features

Primatte 5 introduces four powerful new tools that speed up the keying process and improve results by providing new tools to solve old problems. Let's check this out. We'll start over here with the Auto-Compute; by the way, all these images are in the Tutorial assets folder. We'll open up our Primatte Node and the first feature we'll look at is the Auto-Compute. This is a brand-new algorithm that is very effective; you can get a great key very quickly.

Exploring the new Primatte 5 features

Primatte 5 introduces four powerful new tools that speed up the keying process and improve results by providing new tools to solve old problems. Let's check this out. We'll start over here with the Auto-Compute; by the way, all these images are in the Tutorial assets folder. We'll open up our Primatte Node and the first feature we'll look at is the Auto-Compute. This is a brand-new algorithm that is very effective; you can get a great key very quickly.

First, I'm going to increase the size of our Viewer area so that we can see more pictures. Here we go! Then click the Auto-Compute button and there's our Alpha Channel. Wow! It automatically selects the background color and does a cleanup on the foreground and the background. Note that the Operation has already been set up for Clean Foreground Noise, so it's done all three of these for you automatically. You can now move directly to Keying Refinements and Spill Suppression. We're back to RGB, let's take a look at the new smart select background color feature, hook this up, open up the New Primatte.

This new feature is actually the first operation in the Operation stack. To show you how effective this is, I'm actually going to use the original Simple Select BG Color operation and compare. So we'll select that, come up to our picture, select a region of green screen pixels to set the background color, and then we'll look at the alpha channel, look at that, all the transparency. Now, I'm going to now switch to the Smart Select BG Color tool and I'm going to carefully select exactly the same area, bang, look at that, the foreground is much more solid.

That's because the new Smart Select Background Color algorithm actually uses a histogram analysis for separating the foreground from the background and it also performs a little clean foreground noise operation internally. In fact, all I have to do now is set the Clean Background Noise, couple of strokes here and there, and we're ready to go to launch. Next up; the new Adjust Lighting feature. This is very cool! How many difficult keys have you tried to solve because the backing region is unevenly lit? Here we have hotspots over here on the site and darker spots over here.

Well, the Adjust Lighting feature actually corrects the green screen backing to give it a much more uniform lighting. Let's see how that works. First, we'll select Auto-Compute and then we'll turn on the Adjust Lighting and now let's switch to the Alpha Channel to take a look. I'm going to toggle the Adjust Lighting on and off and you can see where it's actually cleared out a lot of the haze in the background. The thing I love about this is it doesn't disturb the edges of your key, there's no degradation, there's no dilatory erode, beautiful, re-home that, go back to RGB.

Now along with the Adjust Lighting feature there's two new Output Mode options. First the Adjust Lighting Foreground, this shows you the green screen after it's been affected. In fact, watch what happens when I toggle Adjust Lighting on and off, okay, this is the original; this is the corrected, original, corrected. Now there is another feature in the output, the Adjust Lighting Background. What this is doing is it actually building a clean plate, and it's using that clean plate in order to help pull the key.

This allows you to dial in the clean plate if you whish. We can open up Adjust Lighting, the Threshold Slider as you move it to the right, brings more of the foreground into the clean plate. The Adjust Lighting algorithm actually divides the picture up into a grid, so if we increase the grid size, we get more fine detail in the grid, okay, so we'll put those back to default, close that up and return to our lovely composite. Next is my personal new favorite the New Hybrid Matte feature.

Let's open up that Primatte, close this, look up the Viewer, check this out. The Hybrid Matte feature actually creates a core matte inside of the Primatte Node, you may never have to use additional keyers again to create your composites, now that you could do it all in Primatte. First, we'll select the Auto-Compute, we'll go to the Alpha Channel and we can see we have all this transparency in here. The Hybrid Matte feature is especially useful when the foreground colors are similar to the backing color, like somebody shoots blue jeans on a blue screen, like who would ever do that, right? Watch what happens as I toggle the Hybrid Render feature on and off, you see, it's adding in the core matte that's created internally in Primatte.

Now we can see this core matte, come down to the Output Mode, pop-up Hybrid Core, there's your core matte and now we can adjust that Hybrid Matte, you can dial in the erode or adjust the blur radius, I'll put those back to default. You can also see the Hybrid Edge. What this really is is your original key. So hybrid edge will show you the original key, hybrid core will show you the core matte, and then go back to composite, you'll see the two together.

And you can actually just toggle that node on and off to see the effect of it, outstanding! Primatte 5's powerful new tools and smarter algorithms promise faster and higher quality keys with less cleanup work, and the awesome new hybrid render feature, virtually eliminates the need to use multiple keying nodes to create your core mattes.

Show transcript

This video is part of

Image for Nuke 7 New Features
Nuke 7 New Features

51 video lessons · 2223 viewers

Steve Wright
Author

 
Expand all | Collapse all
  1. 3m 2s
    1. Welcome
      3m 2s
  2. 13m 37s
    1. Understanding the toolbars
      4m 57s
    2. Exploring new commands and features
      3m 59s
    3. Improving productivity with the new stereo features
      4m 41s
  3. 16m 1s
    1. Exploring autotracking upgrades
      5m 46s
    2. Introducing keyframe tracking
      2m 36s
    3. Using the new menu bar
      3m 14s
    4. Understanding updates to the Settings and Transform tabs
      2m 46s
    5. Trying out the new export options
      1m 39s
  4. 5m 55s
    1. Exploring the new Primatte 5 features
      5m 55s
  5. 4m 25s
    1. Setting up and using MotionBlur
      4m 25s
  6. 18m 7s
    1. Setting up and adjusting
      5m 27s
    2. Adding depth of field to a live action plate
      6m 1s
    3. Setting up and adjusting bokeh
      2m 54s
    4. Customizing the bokeh
      3m 45s
  7. 27m 58s
    1. Exploring the SplineWarp node
      6m 56s
    2. Warping techniques
      4m 23s
    3. Animating a warp
      3m 37s
    4. Morphing techniques
      8m 3s
    5. Animating a morph
      4m 59s
  8. 20m 26s
    1. Setting up a deep composite
      5m 51s
    2. Processing deep images
      6m 57s
    3. Measuring and viewing deep data
      7m 38s
  9. 5m 22s
    1. Understanding the setup and operation
      5m 22s
  10. 6m 53s
    1. Retiming a shot with optical flow
      4m 13s
    2. Managing motion blur
      2m 40s
  11. 5m 25s
    1. Setting up and operating
      5m 25s
  12. 2m 8s
    1. Understanding masks and guidelines
      2m 8s
  13. 15m 3s
    1. Importing and viewing alembic geometry
      6m 1s
    2. Importing camera and axis information
      4m 46s
    3. Exporting alembic geometry to disk
      4m 16s
  14. 16m 11s
    1. Tracking and point generation
      4m 36s
    2. Keyframing manually and automatically
      4m 50s
    3. Filtering, grouping, and mesh generation
      6m 45s
  15. 8m 31s
    1. Setting up and analyzing
      4m 39s
    2. Refining the output
      3m 52s
  16. 6m 15s
    1. Setting up and operating
      6m 15s
  17. 5m 30s
    1. Setting up and operating
      5m 30s
  18. 3m 15s
    1. Setting up and operating
      3m 15s
  19. 3m 52s
    1. Creating separate cameras and points
      3m 52s
  20. 7m 9s
    1. Understanding new emitter features and velocity controls
      7m 9s
  21. 8m 53s
    1. Setting up displacements
      3m 28s
    2. Dialing in the tesselation
      5m 25s
  22. 27m 32s
    1. Understanding the workflow
      6m 58s
    2. Modeling complex geometry
      7m 48s
    3. Exporting geometry
      4m 40s
    4. Editing geometry
      8m 6s
  23. 2m 3s
    1. Setting up and operating
      2m 3s
  24. 8m 1s
    1. Setting up and adjusting
      5m 7s
    2. Casting semitransparent shadows
      2m 54s
  25. 5m 18s
    1. Setting up and operating
      5m 18s

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