V-Ray | How to use COMPOSITE in VFB | Compositing, BackToBeauty, Basic Post-Effects
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- Опубликовано: 16 авг 2024
- In this tutorial you will learn how to use the Composite feature in the new V-Ray Virtual Framebuffer (VFB). We will discover how to split up our rendering in different Renderlayers, find ways how to control our render elements separately from each other and see how we can include basic Post-Effects directly within the new V-Ray 5 VFB.
I am using 3ds Max and V-Ray 5 in this demo and you would also require to use the latest version on V-Ray as it is a new feature that was not available in earlier versions.
Chapters:
00:00 - Introduction
00:14 - Compositing Overview
02:50 - Layer Combination
05:13 - BackToBeauty
06:07 - Compositing Options
10:23 - Basic Post-Effects
13:23 - Compositing Breakdown
16:01 - Outro
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oh. my. god. what have they done ! this is crazy ! I am a compositing artist and this can help so much without having to go back in nuke etc !
It's pretty great, for the most part you can now do basic compositing in the framebuffer unless you need to add specific effects. Would still love to have an options for basic sharpening, blurring and other basic effects and so on so for this kind of stuff you still need to go to a separate software, but let's see what the future still brings :-)
Thank you fo these tutorials dude, subscribed!
This is... ❤❤❤❤ this is going to make my laif soooooomuch easier. I glimpsed this composite option in new
Mograph tutorial promotion and was looking all over for it...only to find out that your video was out and about mooonths ago! 🤯❤
Awesome tutorial, many thanks for sharing. Surprised that there is no Zdepth implemented yet for camera blur.
You mean to do DOF based on the Zdepth in the Framebuffer as a post effect? Doing it this way has too many downsides and also real 3d DOF renders quite ok nowadays and works particularly good with denoising, so I haven’t missed that so far.
would've have been cooler if you can edit the color of the reflection of a specific material like the one issue you have there on the bumper, sort of like how light mix works, nonetheless this is a great addition!
really good! thanks!
This is great information. One thing I am struggling with is how (in Max) to prepare a render into the VFB to be able to use an image as a background, can't quite lock down how to do that anywhere.
You mean just load a image into your environment?
Stumbled upon your videos and its just so great!! Learned a lot but I still have 1 thing to understand.. Is the comp also in the final image output or are you just baking the values into your render elements for your final comp in photoshop?
Thanks so much for your video!
So if you do compositing in VFB then that will be your final output. When rendering there will be an EffectsResult AOV that will contain all the adjustments. The individual AOV's will still be linear raw without any of the compositing adjustments baked in, so if you combine them together you won't get the same result like in the VFB
Fantastic video as always Jonas, you seem to have the perfect knack of covering the exact subjects that are useful to me :) I love this and will definitely employ these techniques. My only question is how can we do this whilst also wanting to play with the LightMix ? I can see you have a choice of sRGB, LightMix or Compositing, but I'd like to do LightMixing first and then the Compositing afterwards (or on top actually).
Any suggestions please ? :)
Many thanks.
Hi, this at the moment is unfortunately not really possible. As you already said, you can either switch to Lightmix OR work in composite.
But as one possible workaround you could save out all your lights in seperate VRayLightSelect Renderelements and then would be able in Composite to blend each light (by Renderelement) together and then control it's intensity and colortint this way. So that would be a compromise :)
Thanks for the tutorial, VrayMtlSelect is not work on Multi/sub-object?
It should work from my perspective but if it doesn’t you could check with Chaos support what is the issue
hey dude, great tutorials ! just a question, how did you do the camera noise? its a pass?
That’s just an ExtraTexture Pass with a Noise Map that I saved out of Photoshop before
is there an arnold version?
Render animation with composite adjustments? how to do this ??? I try everything, help me Bro :)
It does work. Just make sure that in the VFB you enable the respective option for your adjustments if present (for example if you use a LUT) and save your VFB corrections to RGB Color in the render setting for your Framebuffer
Wow, great video! But why do I have to add and substract every layer?
Basically to separate the information that is stored in the renderlayer. As you can link adjustments to separate layers you first substract this information from your base composite and then add only this information back in again and link your adjustments to just that part alone. Hope that's clear :-)
I want to match a sequence to a VFB in After Effects.
You can export the adjustments in the VFB as a LUT
Hi Jonas, great video 👍 Is it possible to export the colour corrections created in VFB to other programmes? For example, if you want to recreate the image 1:1 in After Effects or Fusion. Maybe you can save the colour corrections in a LUT and then load them into other software.
Yeah In update 1 the VFB has the option to export all your color corrections into a .cube file which you should be able to use in AE or other compositing software :)
Great tutorial! I was wondering about comp in V-Ray and I will definitely integrate some of the things learned into my workflow...yet again. The part of subtracting and adding I have to watch again since it's not very intuitive...or maybe I'm just a little slow.
On a related note: Why can you only comp your render from separate passes in 32bit? When I convert everything to 16bit for ease of use I can't add everything back together and get the base rendering, yet the passes "look" the same in 32bit & 16bit. Why is that?
Hi, indeed I just tried that. Have the same issue for both 8bit & 16bits. But not entirely sure what is causing this. Technically all passes added together should result in the RGB color. The only explanation would be that the layerblendmodes in Photoshop work differently in 32bit compared to 8&16bit.
@@JonasNoell So it might be just Photoshop? I guess I’ll try After Effects next...unless it’s Adobe in general or there’s something very different between 32bit and not 32bit. More than meets the eye.
@@pixelquarry I would very pretty sure that AfterEffects will give you the same result like in Photoshop :) But let me know if there is some different result
@@JonasNoell @Jonas Noell So, after some research (in a 2011 forum post) I found out that Photoshop only works linearly in 32bit. In 16bit and 8bit there seems to be some color conversion going on in the background. There is an option in the Photoshop color settings though. You can check "Blend RGB Colors Using Gamma" and set it to 1.0 but for me, that does absolutely NOTHING. I find it really strange that comping Renders in Photoshop is such a problem. It's not that exotic of a task these days, then again you need to use a 3rd party plugin to open multi-layer exr's.
@@pixelquarry Oh ok that is interesting to know. I will check if it will change something for me. Other than that it's really strange that it seems such a hazzle in 8 and 16 bits. Would be interesting to see if other software such as Affinity Photo does handle that different.
hey,
how do you manage that when you select/subtract the VrayMatSelect_paintYellowBase , only the color changes, not the other values. What I mean ist that when I subtract a material, everything gets subtracted not only the color, like reflection, specular etc (which makes sense, but you seem to have managed it in the video otherwise)
Because my carpaintshader is actually a BlendMtl that separates for example the colored base and the reflective clearcoat. So the MatSelect just select the basepart of the carpaint (the yellow color without the clearcoat) and this way you can just change the color without affecting the other parts.
@@JonasNoell I just found your car paint tutorial as well where you explain how to set up this kind of shader, awesome, it's so useful, thank you very much!
@@JonasNoell I'd have another question: when I render layers with VrayMtlSelect and I select that layer in the frame buffer, it is extremely bright. I also have a car in my scene and its color looks like it's almost illuminated. The clearcoat refelcts almost like a mirror in the MtlSelect layer whereas it stays rather dark and not so "mirrory" in the RGB color layer. Do you have any idea what could be going wrong there?
Hello, your videos has been a huge inspiration for me, I thank you sincerely. I have a question please, Is there a way to do all the editing once for a shot and apply it on an animation video or several frames? Thank you in advance.
Hi thx for the feedback, happy to hear that :-) While I haven't tested it , it should also work without any issues in animation. When saving out the frames though it will just collapse it and write out everything in the EffectsResult channel, so the original AOV's would be left without your adjustments.
If your question was on how to transfer the compositing and tonemapping between differnt shots you can actually save out a settings file from the framebuffer and then merg that into any other scene. It should also keep the compositing in place as long as your AOV's are named the same in all your different scenes. But for this you can also export the renderelements and merge them in the other scenes.
Let me know if that worked!
@@JonasNoell Thanks alot for your answer, I really appreciate it, I'll definitely going to try it out and let you know the result :)
Is the composition saved to the output file ? If so - Which is the best file format to use ?
Hi unfortunately not, you can just bake the whole composite in an image. Best export would be EXR in my option
hey buddy, i wasting my time for hours now, to find a solution to only catch the vray light shadows on a plane, to composite it on my cinema 4d background. i used a render tag but the planes texture mapping is still visible. please help
Hi, not really sure what you mean. Is that in C4D? In V-Ray for 3ds Max you would need to make the plane a matte object, check affect shadows and then render it on black to compose everything back together again in comp.
How did you make the vignette pass? You said its a falloff but how did you aply it, Is it a zdepth or a Lightmaterial or a falloff image in background?
Hi, the vignette pass is a VrayExtraTex render element with a gradient falloff set to screen projection mode
@@JonasNoell Thanks I always forgot about that render element, thanks for the tip, I was using an Image Generated with Radial Gradient in the background layer in the VFB, set as foreground and it has a similar result
@@JonasNoell i cant seem to know where screen projection mode is. any tips?
You can do that in the bitmap or bray bitmap node. Set to environment and then mapping to screen.
JONAS MY DEAR I LOVE YOUR WORK SO MUCH BUT YOUR RYTHM IS TOO FAST SO WE MUST LEARN PROGRAMM AND TRY TO UNDERSTAND ENGLISH LOL , PLEASE TRY TO BE LESS FAST THANK YOUAGAIN
Haha, ok will try to rush less. I think the later tutorials are a little bit more relaxed :)