The Secret to Perfectly Merge CGI with Live Action | (Edge Extending)

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This tutorial covers a technique using Nuke Edge Extending, and goes over the fundamental compositing concept. This applies to any render or CG from Blender / Unreal / Houdini - etc - whenever you are layering CG objects behind real footage you will encouter this problem.
We'll go over the basic edge extend tool, if you're looking for more custom ones, check out Nukepedia.
This tutorial is geared towards beginners, there are more advanced edge extend methods that we don't cover in this video, but this is great place to start to grasp the concept.
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✅PROJECT FILE, includes 1 hour more related to this tutorial demonstrating on more shots , as well as 25+ hours of more content in the Beginner Series
The project with the CG crashed ship (shown briefly in this video) is now included in our Nuke Beginner Series, which is the best place to start if you want to learn VFX Compositing:
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00:00 Overview of Edge Extending
01:14 Light Dapple Effect
02:10 Bad Method
03:23 Node Setup
06:02 Merging the Patch
08:04 Where Edge Extend Fails

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Опубликовано:

31 июл 2024

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Комментарии : 39

@CompositingAcademy 2 месяца назад

Thanks for watching! If you’re interested in learning Nuke and you’re a beginner, our course series is the best place to start and has helped many get hired in VFX studios!: www.compositingacademy.com/nukecourses

@vickykashyap4978 2 месяца назад

Hi sir render point plugin last plugin bottom side MH name full name

@Mionwang 2 месяца назад

Oh man I LOVE these kinds of tutorials that don't really talk about just the "how"s, but instead explain the "why"s and "what"s. Thank you so much!

@thefosterhousevfx Месяц назад

I've been screaming for an edge extend for After Effects for well over a decade. Thank you for a concise professional level use case.

@ASKVFX 18 дней назад

I feel your pain. The work around I've used is applying a simple choker in the negative direction to extend the edge and a separate solid to apply the roto as a matte. An edge extend in after effects is a long time need.

@JoeyTheNpc 2 месяца назад

Thank you for lightening my view of the art of edging.

@walid1fx 2 месяца назад

dropping gems everytime you post a video sir .. thanks a lot!

@yzoro9358 2 месяца назад

Love the new editing style really fun to watch Ty!

@thatcherfreeman 2 месяца назад

Absolutely brilliant tip, thank you so much

@samuelthomas5494 2 месяца назад

Great explanation! thank you for sharing this tip. Hard to find good Nuke tutorials like these

@johntnguyen1976 2 месяца назад

Kudos! No one explains it quite this well, like ever. Or...they tend to not focus on the right method and leave you to figure it out (looking at you, older vfx supes lol). Anyways...great video.

@0xmigu 2 месяца назад

Amazing!

@lightningspeed6142 Месяц назад

This is what we needed !!! but to be honest this is not enough, please make part 2 of this video where you talk & teach in more deep about the very complex edge blending, thin edge blending, motion blur edge blending and also maintaining the details & pixels. this is the most needed thing for many compositors, Thank you alex you finally got on this ❤

@CompositingAcademy Месяц назад

I'm glad it was useful! In NK505 which is about 15 hours of content covers this process in-depth if you're looking for a super detailed breakdown like that: www.compositingacademy.com/nukeonlinecourse-keying-despill-color-integration I have a lot of other tutorials planned around pain points but it's mostly a factor of my time to get them published! Cheers

@lightningspeed6142 Месяц назад

@@CompositingAcademy Alright i will check this out, Thanks a lot ❤

@yafvfx 2 месяца назад

Thank you

@BenWottonVFX 2 месяца назад

Good concise overview! For merging back only where you need to, I will unpremult my CG (in your case the grey sphere) merge the whole edge extended premulted tree over (rgb only) then premult my CG and merge it over the plate. This will merge your edge extend only on the pixels it is needed, and automatically work with defocus or motion blur, avoiding the need to mask the tree by your dilated CG alpha or add roto shapes to compensate.

@Fidelis014 2 месяца назад

That is in fact the only correct solution to this problem and it works in all scenarios.

@CompositingAcademy 2 месяца назад

good tip! Will have to try it that way. Someone else also suggested Atop merge operation which I haven't really used before, could be interesting to experiment with.

@jakobkardoeus9866 2 месяца назад

@@CompositingAcademy I really like using the atop operation in a merge node for doing stuff like this, its doing exactly the same what BenWottonVFX was mentioning before, unpremulting, merging without an alpha, an then premulting again. The "downside" of this is that I don't like how the script is layered then, because then you don't merge every element well organized on top of your b-stream where it would be, you also start to layer elements on every cg element or painted-patch, before you merge it on your b-stream, and you have to do it for every element. But anyways, great video Alex! :)

@JayronimoFilms 2 месяца назад

Thank you!

@MoorishMade 2 месяца назад

I’ll have to come back to this when I become more familiar with nuke

@wswiatkiewicz 2 месяца назад

Hi. For years I just do merge atop operation. It seems easier to catch up someone who takes yours script. It lets you do edge extend with no problem but apply only were yours A-input alpha lets you. Additional you can control BBox size when you apply it by yours roto and do defocus manipulation on a small area and save some CPU power when it comes to render time. as all of as know - render time is crucial! :)

@CompositingAcademy 2 месяца назад

good tip! I haven't used the atop operation, will have to try that out

@Boonuyt 2 месяца назад

❤

@mjparent222 2 месяца назад

great ! One node I really appreciate for small edge extend is PxF_distort combined with the PxF_VectorEdgeBlur from PixelFudger node free. PxF_distort ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-NnGRDoV9B5Y.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-fIt5adqoerU.htmlsi=brYgxaxfbgoNfXV8&t=356 PxF_VectorEdgeBlur ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-08M6qo4_Pbw.html

@maheration 2 месяца назад

Amazing as usual! Did you drop the updates for the courses? Bcz I couldn’t find away to buy it on your site?

@CompositingAcademy 2 месяца назад

Hey! Yes some of the updates have been added, many to the Bonus Lessons / Bonus Projects. I’m currently working on adding another big project, but there’s already some new projects people can dig into. If you’re enrolled in the beginner series you’ll have the 4 courses + a separate bonus section that I’m planning to keep updating over time. If you can’t find it shoot me an email and I can help there. If you just want the bonus projects not the series you can email as well and I can send it separately. Cheers!

@vanhansel100 2 месяца назад

Thanks so much for explaining this! Is there any way to get the script, please?

@CompositingAcademy 2 месяца назад

no problem! This project as well as others are in the beginner series here: www.compositingacademy.com/nuke-compositing-career-starter-bundle

@unspecialist 2 месяца назад

Thanks for not spacing out your script into kilometers of scrolling or motion sickness zooming in and out, tired of supervising compers that think it’s impressive to charge per meter

@ApexArtistX 2 месяца назад

Nobody use nuke anymore . Make fusion tutorials

@CompositingAcademy 2 месяца назад

every major vfx studio uses nuke for feature films, not fusion

@apmanti12 2 месяца назад

Lol are you tripping bro? Fusion is like for indie stuff and maybe small studios if even that

@mickeywillis8945 Месяц назад

I don't know what you are smoking but I would like some

@lumiin3d 2 месяца назад

Awesome! I have a question. How do you comp a cg element that starts behind an element on the footage and then ends up being in front of an element on the footage? Think as if a CG sphere is rotating around a person on footage. That'd be extra helpful, thank you :)

@CompositingAcademy 2 месяца назад

It would actually be the same exact technique as here, except when the object passes in front of the person or object you would "hide" the patch. You can keyframe the "mix" in the merge node to do that method. If the object is both behind and in front of the person at the same time (like a tentacle or something wrapped around the person) it starts to become a bit more complex