I've had a day, so I'm gonna brag... I ADDED THAT FEATURE! Or more accurately, I rewrote it from scratch back in 2.48 when it gave REALLY janky results and it was put into the official codebase in 2.49 and I think it was used in Big Buck Bunny and future Blender Features. So happy when I see people use it :D
Cheers mate. I was trying to create a shader that would procedurally highlight edges and darken crevasses, basically trying to recreate the "Cavity" option in Solid render mode. I managed to get it to work for the most part using bevel, ambient occlusion and color dodge nodes, however crevasses were still being highlighted by the bevel node and appear unnaturally light. Your method helped out a tonne, so thanks again!
"Dirty vertex colours" is what I shall use to practice my Geordie accent impression from now on ;) Thanks for the brilliant tutorial! I've been wondering if there was a way to reproduce a dry-brush (as in painting tabletop miniatures) effect on models, and this looks perfectly suited
Everything works until I select "vertex paint" from "texture paint" in the texture paint tab. Then the model loses all detail entirely. I did create the "Dirt" vertex colour too so mildly confused. Any help would be appreciated.
Similar yes, but the AO node is very taxing on your CPU, so it can really increase render times. The dirty vertex option is basically a pre-baked AO map.
What do you think is better, ambient occlusion node or the method with the dirty vertex colors do you use here? Thank you. You make great tutorials. Really great channel.
It gives a marginally different results from the AO node and it's less computationally expensive, since it uses vertex colours instead of raycasting. The AO node can really increase render times so it's best to avoid it where possible.
Awesome tip. Is there a neat way to combine this with displacement map detail too? I’m trying to mix the vertex map with something to pick out the edges on the displacement map before plugging into the final mix factor.
Is the Facebook Group still active? Would love to join if anybody's got a link! Don't see one in the description and did a brief search but not sure which one is DECODED's group.
The normal map doesn't introduce any dirt. The Dirty Vertex Colors algorithm takes into account only vertex angles, which depends on the geometry of the mesh, and is independent of texturing.
@@lordtalosgaming1448 Sorry for the unclear question. I meant to ask if it's possible to calculate "cavities" from a normal map for the purpose of adding dirt similar to this. I mean the situation where the mesh isn't actually detailed and a normal map is used to add apparent detail.
I'm wondering, does using the Pointiness output of the Object Info (I guess) node as a mix factor achieve the same result? Or, to put it differently, is this Vertex Paint feature derived from the Pointiness? Sure looks like it
nice technique. Never knew vertex paint had that option. So many hidden gems in blender.
Yeah, Blender is full of little tools like this.
I've had a day, so I'm gonna brag... I ADDED THAT FEATURE! Or more accurately, I rewrote it from scratch back in 2.48 when it gave REALLY janky results and it was put into the official codebase in 2.49 and I think it was used in Big Buck Bunny and future Blender Features. So happy when I see people use it :D
@@Wahooney Thank you for your contribution man!
@@Wahooney holy cow! It's people like you that make blender so awesome 🧡. Thanks man!
Blender is gem ITSELF!
This tiny jitter on rotating camera is what pushes it even further in my opinion. Looks great!
Jesus this tutorial is awesome. Such a good channel!!
Thank you!
Actually, his name is Rob.
Amazing video, and amazing channel... best channel I sub in 2019 so far
Thank you Guillermo!
I used this with a reddish "dirt" color in a stylized skin shader to shade the muscle contours and it worked great. thanks for the video.
Cheers mate. I was trying to create a shader that would procedurally highlight edges and darken crevasses, basically trying to recreate the "Cavity" option in Solid render mode. I managed to get it to work for the most part using bevel, ambient occlusion and color dodge nodes, however crevasses were still being highlighted by the bevel node and appear unnaturally light. Your method helped out a tonne, so thanks again!
yeah idk why we dont have a cavity node like in the viewport... so weird
been searching for this for a while. thanks man
Awesome. Thank you for sharing!
Pretty Cool!
Your tutorials are very informative and unique
Thank you.
you are the real decode pro
Thanks for your excellent tutorial. This technique really rocks!
Awesome! Thank you :D
oh my gosh, that adds so much to it! I'll have to try this some time, so simple and effective!
Thank you
Thank you so much!
Thanks dude, will follow you.
awesome, thank you so much!
Impressive!
great work! very useful
Thanks!
HOLY SHIT HOW DO ALL THESE LITTLE THINGS EXIST I LOVE BLENDER. GREAT TUTORIAL!
Super helpful, thank you!
Great tutorial! Thank you, it's very useful!
fantastic! thanks for sharing
Really interesting!
Awesome!
This makes a render go from not looking very realistic to looking like it could be real
"Dirty vertex colours" is what I shall use to practice my Geordie accent impression from now on ;) Thanks for the brilliant tutorial! I've been wondering if there was a way to reproduce a dry-brush (as in painting tabletop miniatures) effect on models, and this looks perfectly suited
you should do videos covering houdini, especially with houdini 18 coming at the end of the year, it's definitely a game changer!!!
I don't know Houdini very well but the new version looks very good.
Excellent
Thanx man!!!
Ambient Occlusion node does it too
Everything works until I select "vertex paint" from "texture paint" in the texture paint tab. Then the model loses all detail entirely. I did create the "Dirt" vertex colour too so mildly confused. Any help would be appreciated.
Thank You!
Would we get a similar result if we use the ambient occlusion node ??
Similar yes, but the AO node is very taxing on your CPU, so it can really increase render times. The dirty vertex option is basically a pre-baked AO map.
What do you think is better, ambient occlusion node or the method with the dirty vertex colors do you use here? Thank you. You make great tutorials. Really great channel.
Muy bueno!! Gracias
what would make it even more amazing is adding some leak erosion based on that dirt....Not sure how you'd approach that though
Have a separate material for the dirt/corrosion, use mix material and have it masked out by cavity. Done !
@@IGarrettI wat
i hear the dynamic paint modifier can simulate water running along the surface and set it to displace to have it carve out water lines
awesome tip. hope I can use this tip in Unreal. :)
you just have to bake it out to a map first.
dirty vertex color option?? wow didnt knew that too
Nice. Is there any reason you opted for this method instead of using the AO node?
It gives a marginally different results from the AO node and it's less computationally expensive, since it uses vertex colours instead of raycasting. The AO node can really increase render times so it's best to avoid it where possible.
@@DECODEDVFX ah I see. Cheers!
Awesome tip.
Is there a neat way to combine this with displacement map detail too?
I’m trying to mix the vertex map with something to pick out the edges on the displacement map before plugging into the final mix factor.
are you intentionally shaking the camera? looks great tho
does it have to be unwrapped ?
should have known this before switching from c4d to blender ;-;
I had something different in mind when you said you were going to create a dirty texture.
( ͡° ͜ʖ ͡°)
will it work with a mesh with loose geometry but intersect each other?
No, it won't. The dirty vertex colors algorithm works based on the angles around vertices, which is unaffected by intersecting loose parts.
Can you ad a per frame to this ?
Is there a way to apply this to multiple meshes at once
Unfortunately not.
Feel like your turntable beziercircle has too few steps so the movement is a bit choppy
Is the Facebook Group still active? Would love to join if anybody's got a link! Don't see one in the description and did a brief search but not sure which one is DECODED's group.
how would one and dirt after normal map, I mean dirt in the little features introduced by the normal map?
The normal map doesn't introduce any dirt. The Dirty Vertex Colors algorithm takes into account only vertex angles, which depends on the geometry of the mesh, and is independent of texturing.
@@lordtalosgaming1448 Sorry for the unclear question. I meant to ask if it's possible to calculate "cavities" from a normal map for the purpose of adding dirt similar to this. I mean the situation where the mesh isn't actually detailed and a normal map is used to add apparent detail.
What GPU do you use?
I rendered this on a CPU, but I have an RTX 3070 now.
Are you kidding me? How long has this feature been there without me seeing it?
About eight years...
Sir kittu rani chennamma statue 3d model send me pls sir
I'm wondering, does using the Pointiness output of the Object Info (I guess) node as a mix factor achieve the same result? Or, to put it differently, is this Vertex Paint feature derived from the Pointiness? Sure looks like it
Not exactly. Dirty vertex colours is like a mix between the ambient occlusion node and the pointiness factor.
@@DECODEDVFX Thank you. I'd be very interested in a video detailing the advantages / pros and cons on this topic
👍👍👍👍
Any one know how can we bake it from vertex into picture like in blender 2.79?
You should always use the latest version of blender
How to get your photo scanned model more photorealistic! 🤣
This method seems to be very unfriendly to models with smooth surfaces.
Is that Buddha? Buddhaful mornin
Didn't work....