Join Steve Wright for an in-depth discussion in this video Primatte: Basic keying and spill suppression, part of VFX Keying: Master Course.
- [Instructor] Primatte is a proprietary green screen…and blue screen keyer developed by Magicka Corporation…and licensed to the Foundry for use in NUKE.…It's actually a three dimensional Chromakeyer,…a very, very sophisticated kind of Chromakeyer…working on completely different principles…than color difference keyers such as Keylight…and Ultimatte.…In this first section, we're gonna take a look…at the theory of Primatte…because it can be a little bit difficult to understand…and control.…
This 3D model represents the basic operating theory…behind Primatte.…Primatte collects all the pixels in the picture…and scatters them into a three dimensional RGB Color cube…represented by this cube and these colored dots.…The pink dots here might represent…some skin tones.…The brown ones over here, a shirt…and the green screen pixels will be clustered…in the center, in the little green cloud.…Primatte will then surround that green cloud…with a Polyhedron and this is how it isolates…the backing colors from the rest of the screen.…
Note: This course was created by Steve Wright, author of the seminal book, Digital Compositing for Film and Video. We are proud to host this course in our library.
- Creating an uber key
- Keying green-screen vs. blue-screen footage
- Preprocessing footage
- Building a clean plate
- Making luma keys
- Keying on hue and saturation
- Pasting keys together
- Grain management
- Saving time with garbage mattes
- Using spill suppression
- Improving edges
- Color correcting keys
- Sweetening the comp
- Alternative compositing workflows
- Fixing edge problems
- Using KEYLIGHT, Primatte, Ultimatte, and other tools
Skill Level Intermediate
Photorealistic Lighting with Maya and Nuke (2012)with Mark Lefitz2h 24m Intermediate
Compositing a Sci-Fi Force Field in NUKEwith Steve Wright2h 12m Intermediate
Compositing an Alien Portal in NUKEwith Steve Wright2h 20m Intermediate
1. Keying Workflows
2. Pre-Processing the Green Screen
3. Other Types of Keys
4. Building the Uber Key
5. Spill Suppression
6. Compositing Techniques
7. Color Correcting
How to match grade two clips4m 15s
8. Workflow Examples
9. Sweetening the Comp
10. Fixing Edge Problems
11. Special Keying Solutions
12. Appendix: Keyer Tutorials
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