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Silverwing Quick Tip: Octane Crypomatte C4D to AE
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- Опубліковано 3 сер 2024
- Hello everyone.
Cryptomatte won the poll so here it is. For those who voted for Render Layers, don´t worry, this is most likely next weeks topic.
P.s. leave a comment if you have any good Idea for a future quicktip / tut.
00:00 Intro
00:58 Setting Up Cryptomattes
04:28 Inspecting the Crypto AOVs
05:36 Looking at the different Crypto AOVs
09:37 Looking at unstable Crypto AOVs
11:15 Looking at all usable Crypto AOVs
11:51 Material Node Name - Mnn
12:46 Object / Material Pin Name - Opn / MPn
13:33 Object Node Name - Onn
14:23 Geometry Node Name - Gnn
14:53 Instance User ID - UID
15:49 Taking the Lesson back to our main Scene
18:01 Taking the Renders to After Effects
18:34 Dealing with Cryptomattes in Comp
20:07 Correcting Parts of the Render using a Matte
22:04 Outro
Thank you! For a long time I couldn’t find the answer why the mask is not perfect and has a border of several pixels... I thought it was a mistake, but it turns out that’s how it works, it’s a shame. Thanks again.
Amazing always! Really appreciate it.
All of your tutorial are absolutely "the best tip tutorial for Octane".
I've learned so many things from you. Hope keep sharing your knowledge and hang out someday :D
amazing lecture thank you so much for real
I am glad you liked it and your great feedback 🙌
i love u so much for listening to us!!! this man has ANOTHER tutorial to make us better artists. much love my friend; keep up the great work!
Well, it would not be worth it if I would not be listening 🙂 Thank you for your kind words once more!
Amazing tutorial, finally crypto matte is clear. Octane should learn a couples of things on how to explain their own product. Thanks again !
Thank you!
Yeah I agree that its a bit convoluted. Believe it or not. I have to watch this exact video from time to time to set up scenes ha ha ha.
You always provide amaaaazingly clear videos to get a true understanding of Octane. Thank you so much. Would love to see more about render layers.
Thank you very much. Thats so nice to hear!
About Render Layers and AOVs. Yes I think there is a lot to explore there. So many new AOVs etc.
I definitely will make one about Render Layers and then also one that goes a little bit deeper into AOVs then the one I already made.
yay!!!!!! There was so much confusion about cm in my head and I never really got it to work. Thank you Raphael! Another great one!
This quick tip help me to understand some problems a had with cryptomattes. Thank you!
Great to hear that. Much appreciate it!
Thank you for the beautiful tutorial. I appreciate your attention to detail and the thoughtful time stamps in the description. I'll be referring to this for a while.
Maybe covering the different compression types would be a quicker tip ;) After my limited testing with C4D/Octane + Fusion I went from using DWAAB to now using PIZ compression with relatively smaller and faster to read files.
Thank you very much. Nice to see you liked the stamps! And thank you very much for your suggestions for future tuts.
About Compression: I think it depends what your image looks like you try to compress. For me always DWAB gave the smallest results. I was a PIZ user before and technically it has a better Quality since its lossless. But I was swayed by the small size of DWAB in the end.
Amazing stuff, thanks!
Thank you very much. Appreciate you like it!
Thanks, was saving using the C4D Save window and my crypto wasn't working! This fixed it! Props!
Great to hear that. Happy crypto-matting!
COOL!
Whew, ok THIS is what I needed. Thanks!
Nice, Glad to be of help!
Awesome content as always! Really looking forward to the render layer tip!
Thank you very much. No pressure right. Ha ha!
Thank you for sharing your octane knowledge appriciate it
Thank you for your kind words. Very much appreciated!
06:00 thanks for that list. I was so happy with "Instance" and "Mat node" and always curious, why they change :-)
I'm going now for 2 other with "name" in it
Great to hear that. If you gather some results let me know how it worked. Cheers and happy rendering!
Thakns ! Loveit so much
Thank you very much for your nice comment ☺
As for the Ae part: I render Beauty and Cryptomatte in one exr. Then I hit EXtractoR (beauty) and Cryptomatte with matted RGBA. So you don't have to matte anything.
Glad I read through these comments. I'm just learning Octane, and I was telling it to include the beauty pass in the AOV, but it wasn't showing up. Adding EXtractoR to reveal the beauty pass and then Cryptomatte matted RGBA to isolate the object is just the behavior I was looking for, saving separate matte layers for everything. Arnold could do this, but Redshift can't (AFAIK). Thanks!
@@WShawn As for Tutorials: ALWAYS read the comments, often hidden tipps to find
Great structured and well educated tutorial as always, always happy to see them coming. BTW I can see you are working with Rizom UV Bridge in 2023, how did you manage to get that running?
Thank you so much. I appreciate your kind words. To be honest I just brought in the Layout from R26. So it does not really work in C4D 2023.
Another great tip Raphael.
I did find that I had to add a new cryptomat layer to the stack for each adjustment layer, is this correct?
Hey there and thank you very much!
Yeah for every adjustment layer you need a new layer with its own cryptomatte effect separating out the mattes you need.
Cheers and a great weekend to you!
very useful ! a few days ago, I was wondering why the crypomatte results were all blank with few strange lines. it turns out to use exr(octane) instead of normal exr format.
i really love your tips! how does cryptomatt work with motionblurred objects??
Thank you very much for your comment. There will always be problems with matting and motion blur because of the transparent pixels.
The only ways to fully separate them would be deep compositing or rendering the moving object in an extra pass with straight alpha.
If its just a small grade / color correction you are applying, then it should work OK though.
Thanks for the informative tutorial, much appreciated as always! Looking forward to Render Layers as well.
On a different topic: Do you think it would make sense to name the videos in a manner relating to the specific version of Octane used? When searching UA-cam for videos of a certain software related topic I often find myself wishing for that, as functionality often changes between different software versions. Naming could help make sure one is looking at up to date information.
Hey there. Thank you very much for your comment!
I think this is an excellent suggestion! I might write / mark down the Octane Version in the Comments of my video as it might make the title a bit long.
But the best would be to also pack it in the title. Maybe I will do away with the "Silverwing Quick Tip" as they are not quick anymore anyway.
Cheers and an awesome time to you!
@@SilverwingVFX Cool! Haha, I suppose "quick" are beginning to be a bit of a misnomer for 25 minute videos, but at least they are very succinct and to the point, which I very much appreciate. :)
Thanks a ton, Otoy has to contract you! Do you also use EXR for animation? I still tend to render PNG for animations and EXR only for stills ... what is your opinion on this?
Hey, thanks so much. I appreciate your kind words.
I use EXRs for all my endevours ha ha. I used TIFFs till around 2005. After that I switched to EXRs and never looked back.
I don´t like PNGs and do not understand their poularity. They need a lot of processing to de and encode are usually bigger then a 16bit float EXR (even with lossless compressions like PIZ) and handle pretty purely 😅
I am not saying people should not use them. If PNGs are your thing, I repect that!
That´s just my experience 😇
Cheers and a great weekend to you!
👍
@@SilverwingVFX I will try this :) Also because RNDR doesn't allow linear workflow with PNG's .... I assume that you use multilayered files then.
@@88puk I would advice using single layer EXRs if you are not using Nuke for comp work.
Reason is that AE or (as far as I know also Fusion Studio) has to read every EXR completely before extracting the layers. So if you pack 20 layers in there those all end up in the Ram for every frame, even if you only use one layer in your comp. I was never a big fan of layered sequences as this can create complications in the workflow (depended on what workflow you are using)
Also note that linear workflow might need some time getting used to. But since you already use it for your stills, you are probably fine there.
Cheers and fingers crossed all works well. And if you have any further questions about it, feel free to ask 🙌
For some reasons it doesnt show right in octane viewer but it shows in AE everything
There have been problems showing the cryptomatte passes when you are working in ACES. If you seen green with outlines in your live viewer you can set it to HDR sRGB or LDR sRGB and it should show up.
This problem should not presist with newer Octane versions however.
Hopefully that helped!
I don't know why, but using material node name with 3 simple cubes with 3 different materials, my picture viewer shows everything green and 3 boxes outlined in black.
If you are working with ACES this was a problem in the old Live Viewer. It is solved in newer versions of Octane.
The temporary fix is to set your live viewer to LDR sRGB while viewing Crypto.
@@SilverwingVFX You are a god send. I thought I had the latest version of Octane as I just bought it. I'll recheck!!! THANKS!
@@vadimchiline1685 Thanks so much!
The latest is the 2022.1
I think the problem persisted until the 2020.1.6 (The last version before 2022.1)
Just finished using Cryptomattes on a project. I think an issue with the is if you rerendering the sequence or little bits its a bit of a nightmare to fix up in AE.
The cryptomatte selections are often reset and you will need to repick the mattes in cryptomatte in ae. If you see what I mean
Yeah exactly. This is why chosing stable mattes is so important. Mattes that rely on Object Names or Materials names that usually don´t change. As I point out in the tut 🙂
Do i need to add tags to my objects? I am trying to control lights flashing on and off in post. And just can't get this to work.
Hi there Dave.
Not sure. Would need to know more about your scene and what you are trying to achieve!
If you want to control lights that sounds more like a job for the Light AOVs then for Cryptomatte!
I don´t have a dedicated tutorial on light passes. But you can see them in the Fusion Comp Video: ua-cam.com/video/aeApXZQIqO8/v-deo.html
And also the Diamond Lighting video takes advantage of these: ua-cam.com/video/5OprjOfq3fo/v-deo.html
Cheers,
Raphael
i have this issue with my cryptomattes where it leaves an outline of the objects I select. Its very annoying. I tried messing the straight/ pre multiplied settings but its still there. Is there any easy way to get rid of those outlines?
I am basically trying to use the cryptomatte as a mask to isolate each object as its own layer. But they always leave the residue. Is there any better way to use crypto mattes as a mask? I tried using the Material ID pass but it never works as a luma layer. I dont know of a better way to get masks out of octane so I can isolate my objects in after effects easily. Would love to know of a better way
Thank you for your comment and your question.
While Cryptomatte is rather good in providing a good mask. The problem you are facing is (as it seems to me) a technical one deeply rooted in the inherit structure of pixel values, antialiasing "blur" and eventual other effects like depth of field and motion blur.
On the edges of object you normally have a small part where you see both the object it self as well as the background. So both the background and foreground are held in the single color information of one pixel. And therefore can not be taken apart from each other easily by an alpha.
The larger the area is in which the object fades into its background the harder it is to extract. Even a perfect alpha mask can not create a cutout without side effects because the cutout area always has both some foreground and some background info in it.
The only way to get very clean object cutout would be to render the objects separately with render layers:
ua-cam.com/video/YB4LBf_t_Xs/v-deo.html
and im sorry silverwing one more question. you are the only one that seems to know these things. How can I setup octane in cinema 4d so that certain objects are in my project, but hidden from render, but still act like a mask/holdout. For example. I have trees that are polygons, but i dont want to see them in the render, I just want them to hide the things behind them. I tried many things but they always show whats behind. I just need some sort of mask setup in cinema 4d to hide things from view but also not show up in render
Hey hey.
If you want the tree as a holdout. So basically a white alpha, where the tree is in your scene, then again the answer is Render Layers:
Just define the tree with a render layer ID. Set your Render Layer ID in the render setting to the that number. Now only the tree should be visible everything else is cut out.... but if you hit "Invert" in the render layer tab, you get the inverse effect. Everything is there but the tree. Hope this is what you intended and the linked video helps you.
ua-cam.com/video/YB4LBf_t_Xs/v-deo.html
Seu tutoria está incrível. Porém quando abro o arquivo erx no photoshop ele abre o arquivo com várias camadas porem não vem a camada do crypomatte (a imagem colorida), você poderia me ajudar. Eu imagino que seja na configuração do AOV
Ei. Infelizmente, não estou familiarizado com o manuseio de cryptomattes no photoshop. Eu estou supondo que você precisa de um plugin para fazê-lo funcionar no Photoshop.
I have a problem… I export with cryptomatte a animation but each frame has a different color… so it’s imposible to matte the whole animation … I get wrong with something? Thanks
Hey Nessa,
have you seen the Video? There are unstable Cryptomattes that will producte different results every time... but even with an unstable Cryptomatte like mentioned in the video, it should not change every frame of the video.
Unless you have set the Octane Rendersettings to "Resend all Scene Data"
Though choosing a stable Cryptomatte should usually fix your problem no matter what the settings are.
Hope this helps you. If the problem presists however, you can give me detailed description or email me.
Cheers and a good start into this week to you!
@@SilverwingVFX hi! Thank so much for your reply. I think I fixed it deactivating “multilayer file”. 😂❤️
@@NessaRales Oh good to know. Great you figured it out!
Thank you!
You very welcome!
The color cannot be fixed in octane. You have to reselect Cryptomatte in ae after each output. However, in redshift, the color is fixed and there is no need to select it repeatedly.
Thank you for your comment.
Have you watched the whole video? Part of it (from 11:50) deals with stable and unstable crypto passes.
You should get the exact same ID especially for those passes that use Naming ad their base. e.g.
Material Node Name, Object Node -Name, Geometry Node Name are stable as long as you don't rename your Materials, Octane Tags, Objects.
@@SilverwingVFX Thank you, but the methods of naming and modifying ID scene objects are a lot of work and require too much work.
@@jianmingwei7498 Then you can just use Material Node Name or Geometry Nodes Name 🙌 Especially Material Node Name should give you a good, stable variety!
Please z depth Tutorial ı cant
Oh, interesting suggestion. I put it on my list. Thank you!
can it set color for cryptomatte ?
Hey there and thank you for your comment.
The color results sort of randomly from the calue that defines the cryptomatte.
The only way to control the color is to change what changes the cryptomatte. e.g. Material Name, Object Name etc.
Why do you want to change the color if I may ask?
Hope this helps so far ;-)
If i paid you for an hour of your time could you help me do it step by step. i'm not sure what i am doing wrong.
Hey hey, yes that is totally possible.
You can contact me via Mail and we can arrange something. I don´t want to paste my address here. But if you go to my website, its on display there.
Sorry for the complication 😇
@@SilverwingVFX Perfect. I will go ahead to email you right now! Thank you!
@@SilverwingVFX Just messaged you on your Facebook page via messages!