Compositing EXR passes & color correction in After Effects

Compositing EXR passes & color correction in After Effects - VFX Plane Part 05

Рет қаралды 54,321

Күн бұрын

In Part 05, we head over to After Effects to start compositing the EXR sequence. Learn how to interpret footage, linearize the working space, use the EXtractoR effect, the unmultiply effect, use a LUT color correction file from V-Ray, and use curves and Lumetri Color. We also composite exhaust and heat distortion using the exhaust matte we made in Part 03. Continue to the last part, Part 06.
0:20 Importing EXR file sequences
0:59 Interpret footage/color management
4:00 Separating multi-channel EXR's with EXtractoR
4:33 Linearizing the working space
5:35 Unmultiply effect on EXtractoR
6:11 Compositing EXR passes continued
9:21 Checking for issues
10:56 Fixing issues in Maya (animation, glass, lighting, etc.)
15:40 Color correction with a LUT from V-Ray
16:54 Color correction with Curves and Lumetri Color
18:17 Clipping and HDR Highlight Compression
21:04 Exhaust compositing
My modified model with textures:
drive.google.com/drive/folder...
Original model and textures:
www.turbosquid.com/FullPrevie...
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Пікірлер: 105

@Decco6306 2 жыл бұрын

professional video editor and SFX artist that makes YT tutorials and hes not using a mac? Respect.

@CGStirk 2 жыл бұрын

I'm neither, so I guess it's okay to use PC lol.

@jimmwagner 2 ай бұрын

Setting the colorspace and linearizing it is something I have been looking for forever! I avoided using extractor because it was always darker. Thanks!!!

@CGStirk 2 ай бұрын

You're welcome. You should check out the video on ACEScg in Maya since the workflow for this series is only for linear sRGB and is quite dated.

@miinyoo 3 жыл бұрын

Solid! That was so much information compressed into 20 ish minutes. To anyone who is new to compositing VFX, take your time and study each little bit preferably with your own spec project. There's no shame in watching this several times.

@CGStirk 3 жыл бұрын

Thanks! You're right that you probably need to re-watch parts a few times, and everyone's project is different. If you're interested, check out the full length tutorial where I cram even more info into an hour and a half! kzfaq.info/get/bejne/p7uEq5t8uNzdemw.html

@melbendigo 2 жыл бұрын

Excellent! Clear and specific explanation to using EXR in AE with the answers I couldn't find anywhere else. Thank you!

@CGStirk 2 жыл бұрын

Glad to hear it. If you have any questions, feel free to post here or on the discord server.

@Slotfan1 3 жыл бұрын

Life saver with the correct setup for the project. I had completely forgotten about how to do all that.

@CGStirk 3 жыл бұрын

Glad to be of service 👍

@kontectme 2 жыл бұрын

Thank you so much for so showing the tricks I have never found anywhere else.

@CGStirk 2 жыл бұрын

You're most welcome. Thank you for your comment.

@ysiegel 3 жыл бұрын

An actual TEACHER!! Thanks to you, good sir...Too many "click this, do that," and too many youngsters pretending to act professional by suggesting "well I personally like doing this, and it works for me so..." I can tell someone who knows the hell what he's talking about...You're the kind of person I wouldn't mind paying for their content, this is real quality stuff. Thank you!

@CGStirk 3 жыл бұрын

Thank you very much! It's great to hear when someone really enjoys these. I really put in a lot of effort into making them as informative as possible.

@ysiegel 3 жыл бұрын

@@CGStirk There's a difference between what most people do, and actual teaching. The teaching part has to really engage the student, and really give over the information with them in mind. I can tell one when I see one... Thank you for your very valuable content!

@CGStirk 3 жыл бұрын

Thanks again. I'll keep making them!

@auroragonzalezsegura2306 3 жыл бұрын

SO USEFUL!! Very well explained thank you so so much!!!

@CGStirk 3 жыл бұрын

You're very welcome. Thanks for checking out the channel!

@CGStirk 4 жыл бұрын

Project files for this tutorial and many others are available on my Patreon: www.patreon.com/cgstirk At 21:30, I think I cut an important step. Make sure to blur the Exhaust matte with a Fast Box Blur. Don't blur the Exhaust adjustment layer otherwise you will still see hard edges.

@makeitlastmedia Жыл бұрын

how do I become a pro at VFX maya?

@CGStirk Жыл бұрын

A lot of practice and industry experience

@makeitlastmedia Жыл бұрын

@@CGStirk then I'll have to just practice cause industry experience id have to work somewhere and that right now is impossible :)

@CGStirk Жыл бұрын

No entry-level job will expect you to be a pro, but the more experience you can get on personal projects will help you a lot.

@makeitlastmedia Жыл бұрын

@@CGStirk ok thanks for the response

@rfrodrigofernandez290 2 жыл бұрын

Thanks bro this is solid gold!

@CGStirk 2 жыл бұрын

Thanks! There are more comping tutorials incoming.

@mendezcreative 3 жыл бұрын

really good tutorial. thanks!

@CGStirk 3 жыл бұрын

Thanks! Glad you enjoyed it!

@IndependentVFX 4 жыл бұрын

Who the heck clicked dislike? Theres always After Effects haters out there. AE is Awesome.

@CGStirk 4 жыл бұрын

Haters gonna hate. Team AE!

@dex3k 10 ай бұрын

Thanks, awesome information

@CGStirk 10 ай бұрын

Glad it was helpful!

@ptw1987 Жыл бұрын

Amazing_thank_you

@CGStirk Жыл бұрын

Thank you!

@xplorer3475 2 жыл бұрын

very cool !

@CGStirk 2 жыл бұрын

Thank you

@benmartin5869 2 жыл бұрын

Great info. How do you deal with the color space transformation when you are compositing something over existing footage, and Linearizing and going to SRGB totally messes up the color of everything else?

@CGStirk 2 жыл бұрын

Thanks. Make sure you linearize the comp before working on it because effects that use color values will get messed up. If you linearize first though, there is not an issue. I'm also assuming you're using the default settings with Color Management enabled.

@chetanwalia9598 4 жыл бұрын

did you render it exactly like you left it ? only with the dome light ?

@CGStirk 4 жыл бұрын

Yep. Later in the tutorial I go back and add a low intensity directional light just to add a bit more direct light on the screen-left side of the plane.

@nikita.kapustin Жыл бұрын

Thanks you for that awesome tutorial! What's the Track ID from the Intro soundtrack? Its amazing!

@CGStirk Жыл бұрын

Thanks! It's Siren Screen by Ooyy

@bohdanosadchyi 2 жыл бұрын

Hello, can I ask a question? When in the after effects I make a layer with alpha and curves for the exhaust, they don't look like smoke, they look like a translucent outline of the shape that we modeled. What could be the problem?

@CGStirk 2 жыл бұрын

I have a pinned comment on this. You need to blur the exhaust matte layer. I accidentally cut that part from the edit

@bohdanosadchyi 2 жыл бұрын

@@CGStirk Oh, sorry, I read all the comments looking for an answer except the first one😅. Sorry again. Thanks a lot!!!

@CGStirk 2 жыл бұрын

@@bohdanosadchyi You're fine. It's my fault!

@williamstobi9424 3 жыл бұрын

ok so i have been looking for a way to get my sky back in after effect from a 3D max render i did in 3D max. please this is very urgent

@CGStirk 3 жыл бұрын

Interpret the footage to "Ignore Alpha" in After Effects. Not sure if that's the issue, so you may need to provide more info.

@phanigurram 4 жыл бұрын

i created a LUT using camera raw in photoshop. i used that lut in after effects in exr sequence ,its washing colors. if i convert that sequence to jpg then its applying that EXR properly. but i have all sequence in exr . how can i solve this problem

@CGStirk 4 жыл бұрын

Make sure you have linearized the workspace and that you have set the color management for the EXR sequence to "On", not "On for 32 bpc".

@phanigurram 4 жыл бұрын

@@CGStirk i did that but got this result Download link wetransfer.com/downloads/5f22163ea0e25cef61c69775ef2e6b4820200515165504/6284537b15c8ab564cf0ef086a6c2d4c20200515165504/1f6759 Really thanks for your replay. please look at that link ,how the result im getting thankyou.

@phanigurram 4 жыл бұрын

if i change the workspace to srgb from none. its darkening many areas .and darking many filters already applied. on gamma 2.4 only its showing actrual rendered image in vray

@CGStirk 4 жыл бұрын

The workspace is dependent on what you rendered in Maya. If you are using 2.4 gamma in Maya, then use that in AE. The sRGB workspace uses 2.2 gamma. However, judging by the two images you shared, the one of on the right looks correct, whereas the one on the left has lifted/washed-out shadows. The workspace needs to be setup prior to making color correction adjustments. If you change the working space, then the color correction usually needs to be modified.

@CGStirk 4 жыл бұрын

Also, when you make a LUT in Photoshop, you'd need to be using the same working space too.

@risnandarmultimedia5296 3 жыл бұрын

lots of knowledge here for compositing. nice. background music quite distracting though

@CGStirk 3 жыл бұрын

Sorry about that. Newer videos have much quieter bg music. If you'd like to view this part without any music, check out the full version here: kzfaq.info/get/bejne/p7uEq5t8uNzdemw.html.

@risnandarmultimedia5296 3 жыл бұрын

@@CGStirk awesome thanks.. watching it now

@CGStirk 3 жыл бұрын

@@risnandarmultimedia5296 You're welcome 👍

@MHM4V3R1CK 2 ай бұрын

Doesnt the beauty pass have all thise passes already baked in? So adding afditional "copies" in top just makes them more intense? Is thwre a way to render those passes separately without noise in the same way that the framebuffer is compositing them internally? Thanks!

@CGStirk 2 ай бұрын

Yes, the beauty is most of these passes combined. AO is additional, in this case. However, you don't use the beauty with this compositing method, so you're not adding intensity to it, you're recreating it. Not sure what you mean by rendering without noise. If you mean denoising, then yes, but this tutorial doesn't go over it. Actually this whole series is pretty out-of-date. The materials aren't even PBR. For denoising in V-Ray, you enable the Denoiser AOV and then you need to enable denoising on each separate AOV.

@MHM4V3R1CK 2 ай бұрын

@@CGStirk thanks for the quick response! I've been trying to figure out how to build a composite of a CGI screen from scratch in compositing vs starting with a beauty/combined pass at the bottom of the stack so I can have total control over each layer's influence. Feels like a powerful way to do it but I've only ever seen passes come out noisy even with noise pass driven denoisers built into modern render engines. The only time I've seen something close is in vfx breakdowns of blockbuster films but often they are still using common render engines like crazy and would like to know how that is achieved.

@CGStirk 2 ай бұрын

@@MHM4V3R1CK This is how you do it with V-Ray kzfaq.info/get/bejne/b6ldp9WKmbiwcpc.htmlfeature=shared&t=23485 For Arnold, I believe you do it with an Imager and there's a layer selection field for choosing the layers you want to denoise. What renderer are you using?

@MHM4V3R1CK 2 ай бұрын

@@CGStirk Thank you for the info! I'm using Corona and vray depending on the job in 3ds max and for simpler product work I'm using blender and cycles.

@CGStirk 2 ай бұрын

@@MHM4V3R1CK I would imagine there's a way to do it in Corona and Cycles. I don't use that software though.

@BJgrand 3 жыл бұрын

Can some please explain to me why when I import an exr sequence from Maya into After Effects, the exr sequence is stuck with my animation with a black background? I can't get it to be transparent. What am I doing wrong? In this video I see that the exr is simply dragged in and has a transparent background. This is driving me crazy.

@CGStirk 3 жыл бұрын

This could be due to several reasons. What renderer are you using?

@BJgrand 3 жыл бұрын

@@CGStirk I'm using Arnold in Maya 2018. I put two characters in their own pass in render setup and when I render it out as an exr the black is not transparent in programs like After Effects and Photoshop.

@CGStirk 3 жыл бұрын

Is there transparency in the framebuffer? Are you using a skydome?

@BJgrand 3 жыл бұрын

@@CGStirk No skydome. Just the two characters and area lights in the pass. Where would I go to check transparency in the framebuffer?

@CGStirk 3 жыл бұрын

In the Arnold render view, go to View > Alpha Channel

@gerranrox3316 4 жыл бұрын

How your matte is blurry? I mean I used my adjustment layer and made is the track matte but after using the curves.. It is showing me a matte but with proper boundaries.. Not like smoke

@CGStirk 4 жыл бұрын

Make sure you blur the matte, not the adjustment layer.

@gerranrox3316 4 жыл бұрын

So first I have to blur the matte.. Then use adjustment layer right???

@CGStirk 4 жыл бұрын

Yes. The matte is the outline of the smoke. That has to be blurred, not the adjustment layer, which only blurs layers underneath it.

@CGStirk 4 жыл бұрын

Sorry for the confusion. I just realized that this step was somehow missing from the tutorial. Apologies.

@gerranrox3316 4 жыл бұрын

It's okay man.. Thank you for the help. It did worked for me And what a great tutorial 😁😁

@linhbui7088 3 жыл бұрын

i export exr from blender but when import to AE, add extractoR and it couldn't chose Layers for GI? can you help me?

@CGStirk 3 жыл бұрын

Is it just GI that's not working, and other passes do show up? I don't use Blender, but if the other passes are working, then perhaps there is an error in how Blender is saving that pass. A temporary solution is to save out your passes in separate EXR sequences instead of a single multichannel sequence.

@linhbui7088 3 жыл бұрын

CGStirk i render exr in blender and I render with these layers: difdir, difind, difcol, glossdir, glossind, glosscol. And when compositing in after effects what the blending mode in should do and what the order of these layers? Thanks you very much. This tut is very helpful.

@CGStirk 3 жыл бұрын

Without knowing what channels these correspond to, it's a little hard to know since the workflow I used in the tutorial is different. For example, in V-Ray you can render a glossiness pass, but it is not part of the beauty. Furthermore, V-Ray can combine passes to make the compositing easier, but you lose the ability to alter specific elements. That said, I would guess that you need to precomp difdir and difind with the Add blending mode, then Multiply the precomp with difcol. The same is true for the glossiness passes, which would be blended again with the Add blending mode on top of the diffuse passes. So like this. Note that the parentheses are precomps: ((difdir + didfir) x difind) + ((glossdir + glossind) x glosscol) I hope that makes sense. These passes give you more control than using the abridged V-Ray workflow in the tutorial, and it's more cumbersome to do in After Effects than with a node-based compositor.

@linhbui7088 3 жыл бұрын

CGStirk I really appreciate your help. ❤️. I try ((difdir+ difind) x difcol) -> precomp -> and I blending this comp “add” above the combine image. And it quite working.

@CGStirk 3 жыл бұрын

@@linhbui7088 Awesome. I'm glad that worked!