I was recently on VFXforFilmmakers channel doing a keying demo using my advanced keying template. Matt has kindly filmed some 4K ACES blackmagic footage for all of you to practice on, and we’ve included this nuke script, original footage, pre-renders and final render in the work files for you to play around and dive into.
It’s a great resource and practical case of how I would use the techniques and templates that I developed in the series. By no means the only way to keep, but hopefully you will find many parts interesting and valuable.
The FREE working files can be downloaded from Matt’s website VFXforFilm.com
0:00 – Introduction
4:30 – CC and transform after key
6:49 – CC and transform before key
12:03 – Advanced Keying Template flowchart
15:25 – Advanced Keying Template
40:10 – Advanced Keying Template Compressed
40:55 – Advanced Keying walkthrough script
41:59 – outro
Sorry for the long overdue tutorial wrapping up this keying series. Here is the advanced keying template video, along with a flowchart and download link to the template scripts, which you can save to your toolsets for your own use in your nuke scripts.
Here is the Template Flow Chart from the video for you to download and review:
Here is the download to the Advanced Keying Template Package:
Or download from Nukepedia
Some of you have asked for source materials for keying practice. I can provide you with a few free downloads so you can practice.
https://www.thefoundry.co.uk/support/user-guides/#nuke – download the nuke keying assets
http://www.thefoundry.co.uk/products/nuke/learn1/ – scroll down to 2d compositing | Compositing Basics. Click on the link that says Download Assets for Basic Workflows (535 MB). Here you will find the girl and desert BG found in this tutorial.
https://mango.blender.org/ – Tears of steal open source project. Free 4K footage for people to download and practice. Highly recommended. scroll down to the blog post called ALL 4K FRAMES – NOW AVAILABLE ON XIPH.ORG.
Finally, I want to thank everyone for your continued support, views, shares, comments, and emails. It all means a lot to me and you’ve certainly motivated me to keep going. Thank you.
As always, if there are any questions, just leave a comment or shoot me an email and I will try my best to respond. Hopefully with this series of tutorials, and now this template, you guys will be fully equipped to handle even the toughest of keys.
Until next time!
I’m going over the first section of Despilling. I talk about what despill is, why you need to remove it, how it should be separated from the alpha process, and combining core and edge despills.
The 2 main goals of despilling are:
1.) Removing any spill while still maintaining the original colors in the plate
2.) Blending the subjects edges with a BG colors
Here is the link to a great despill tutorial which goes over blending BG colors using the difference matte of a despilled plate –> to the original plate. If you are new to the concept of blending your despill with the background then you are really going to like this video. He talks about flame in the beginning of the video and switches to nuke later.
Thanks for watching, next I’ll go over how to achieve and control the despill to get what you need.
Sorry for not posting in a couple months, I have been traveling and working. But I am ready to finish off this series. I think you guys will like this one because I go over some techniques on the IBK workflow. The first part of the video I show you a comparison between how I usually see IBK being used and the IBK stacked technique. There are 4 examples (a greenscreen, a bluescreen, a hair problem, and a shadow problem) that I go over and explain the concept of what the IBK is doing, and the importance of the IBK Color, or cleanplate.
Next I give you a step by step breakdown of how to setup this IBK stacked techniques by building these 4 examples from scratch. If you are already familiar with IBK and want to jump into the step by step process of this stacked technique, you can just to 7:09 (Step by Step process, example 1 greenscreen).
7:09 Step by Step process, example 1 greenscreen
17:12 step by step example 2 bluescreen
22:15 step by step example 3 hair and assisted eroding
27:37 step by step example 4 shadows / cleanplate customization
At one point, my cursor disappears in the recording. Something must have gone wrong during the recording process, but you should still be able to see me clicking and marquee-ing stuff.
I’m glad to be moving onto the despill section, as I think it usually is overlooked. In reality it’s just as important as the alpha, if not MORE important.
Here is the first part in the advanced keying series. I’ve started with the ALPHA section, and made a custom slide for just ALPHA, where you can see the many topics I plan on covering in future videos, but for now I am just covering 1.1 Pre-processing the Green Screen. Here is the slide for ALPHA:
It’s a long video, but it’s full of useful tips and techniques. I recommend watching the whole thing if you get a chance, but if you’re in a rush and want to skip to certain sections here are the Timecodes for you:
13:11 White Balancing
25:33 Evening out the GS
35:21 Outro Recap
here is the Neat Video plugin website I mentioned for reducing noise on an image:
here is the link to some keying tutorials from nuke station for you guys to look through if you need them, most all of them are excellent:
Please guys, I know I covered a lot but if you have any questions, or if you would like me to do a written recap on all the sections here in this blog post, please just let me know and I’d be happy to write it up for you. Leave a comment with any questions, or if you think I messed something up, or if you’d like to contribute to the conversation and have anything to add to this tutorial. I enjoyed putting this together and look forward to the rest of the keying tutorials I plan on putting together. Please share if you learned something =)
Advanced Keying Breakdown Series: Introduction
So I knew I wanted to do a keying tutorial awhile back, but I didn’t want it to be the same old crappy keying tutorial that you always see online. The teacher always talks about how to use the tools, and not about the main concepts or techniques behind them, the end result, what we are actually after.
I have put together this introduction video, and a part 1 video “ALPHA 1.1 Pre-Processing Greenscreen”, as a push to get this stuff out to you guys. Here is the Slide in the video for you guys to save for your own use:
The 3 main parts are ALPHA, DESPILL, and MERGE OPERATION.
Here are some time codes to skip to in the video if you so please:
2:50 ALPHA section
4:49 DESPILL section
7:27 MERGE section
I will go into all of these in far more details, this video is just me talking and doing a rundown of what to expect in upcoming videos.
I recommend you guys browse through the following videos on Nukestation (a GREAT website and central location for nuke tutorials) if you are new to keying or compositing. The video I am doing is quite advanced, and you’re probably going to want to get a firm grip on the keying tools in nuke before watching.
In particular, I think you guys should watch this video by victor perez: