So. I open blender up, delete the default cube......then what?

he's just using blender to teach you linear algebra

9:05 and _this_ is why I want Repeat Zones in the Shader Editor

Extra tip: use a white noise texture instead of the discrete depth checks - simplifies the number of nodes and gets rid of the stepping, at the cost of looking a bit noisier.

Thanks for motivation. I was planning to delete blender. Now I did it.

I finally understand how parallax occlusion mapping works.

GOAT of blender still on the block

I wish Blender would finally add Parallax and Tessellation to the shader nodes. It's been in game engines for nearly two decades now.

A couple years ago i followed a similar tutorial showing how to make fake windows with rooms behind them. I ended up with a project to build the rooms (with wall decorations, lighting, etc.), which put out a node set, and a shader template to modify with the node set.

Doesn't that break when you rotate the plain? you need to transform the incoming vector into texture space. ie take the dot product on the incoming vector with normal, tangent and binormal. Although I'm sure you know that, I'm guessing there is a part 2 🙂Be warned the technique doesn't work on curved surfaces anymore, blender clamps the normal so you can't have be pointing into the plane surface, because is messes up eevee next. That caused me such a headache trying to figure out what was wrong!

BEST Parallax Occlusion Tutorial ever!

Awesome as always, man!

Men that's just so much you give us. Thanks a lot, have to rewatch it several times to fully get it i think

Thanks for posting this! That forum is a wealth of knowledge

I was waiting for this video

'the man, the myth, the legend, the mathematical wizard'

Very cool technique!

I totally got everything covered here!

❤nice tutorial!

This is nice, thank you

Thx for sharing!

thank you!

Must say this is quite genius! amazing thnx

That was amazing

nice explanation, thanks 🙏

First time I saw Parallax mapping was in F.E.A.R. The decals on damaged walls. It was one of the coolest things to see because it was so much detail for something that use to be a black dot.

This guy is the best blender youtuber

great! Thank you!

Once again, blow my mind

Bro you're a genius

I like how my brain turned off for every single thing except the skillshare ad.

oh finally a great quality tutorial! I am joking you are the best.

Wow, amazing stuff! Thanks a lot for sharing it! A big ciao from Italy and Long life to Blender! :)

Amazing man, I crave node shenanigans

Great explanation for something I considered sorcery when I saw it used in 3D.

WHOOAAA !!! But seriously, great tutorial ! Relatively deep subject but well explained, even though we might have to take a few steps back a few times to figure things out correctly, you gave us a precise and concise explanation. I just watch a video on the colour perception of jumping spiders and all to say, it is quite a wonder the things we can manage to do with the information we can manage to perceive :)

It made my head hurt but it was well worth it, the longest thing for me here was the 7 hours I invested in Zbrush to create that texture lol

Bravo sir!

Thank you very much :D

So Enjoyable

damnn thats like octane ggs dude!

This is the equivalent to "Yeah, Im a visual learner" in math class wthen learning about vectors

this method has some limitations but can work for some cases is enough, thanks for sharing

I have tried to do this well so many times in blender

omg omg omg omg tysm tysm tysm tysm

excellent stuff as ususal

big heart for jordy

Forgot to set normal and roughness to non color instead of sRGB (I assume you know to do that but just forgot in the moment). Normal maps and roughness maps are not displayed correctly when set as sRGB so the rocks at the end look a bit weird. Cool video though, I wish blender just had POM support by default like most game engines where you just plug in a height map.

Finally you upgraded the tutorial..

This madlad got 'i can remap your life' kind of energy

You are a god who walks among us.

I wanna cry. I understood nothing!! But, I really wanna use parallax occlusion, because my PC isn't strong enough for displacement maps! This was still a very detailed tutorial, so I will probably get it after watching it a few times. It's easier to understand things when I have no choice but to understand them to complete a project.

😅 One breathe at a time, Thanks a lot saviour!! 🎉

You could say this is like a ray marching algorithm but with Blender geometry nodes

i got whiplash at 9:04

I really want fragment shader kinda setup in blender. So then I can for loop through all the iteration easily.

Man a loop would be nice in nodes

Further proof that Crytek is made up of a bunch of wizards

this is delicious

We really need the ability to loop like geometry nodes in n shader nodes, that and pass a texture parameter into a node group Bravo

First thing popping to mind: convert the height map into something akin to 3d SDF, which will optimise the amount of steps needed for each fragment as well as accuracy.

have you seen anisotropic cone step mapping? I would be surprised if its possible to make in nodes but it is supposed to often be both faster and higher quality. It uses scaled cones centered on each pixel instead of vertical layers, and requires a preprocessing step. There's also nvidia's relaxed cone step mapping which looks similar except it makes the cones intersect the geometry and adds a binary search at the end.

It looks kinda wonderful, but I have serious concerns about how much longer the render will become with a setup like that. If only it was a sort of - low level processor instruction node...

yeah i'm not doing allat

Clever Boy

I literally discovered this one week ago

Hey, I saw that your Blender speed while making animations is very quick and has good quality. What laptop or PC do you use?

For those that want to listen to this normal speed, change to .75 playback.

Wizard lvl

Your ability to teach is phenomenal. Thank you for being an inspiration.

Blender devs ask bro how blender works

okay now make a parallax room shader

So this is basically shell texturing

I’m not sure why I didn’t realize POM is just fancy shell meshing until now…

Is there a way of blurring the edges of an image texture into eachother to make a short fake seemless texture with nodes? Might be a cool experiment

I use Blender for ages and never checked if this is possible. Granted the setup is too complex for something I'd use normally: Would be great if this was builtin!

Ray marching shader next?

I wonder if you could do a binary search instead of buckets I dont know blender well so I cant say, but it would help mitigate the blockiness

I’ve spent some time trying to use this technique to represent windows of a building similar to the ones in the Spider-Man games. Any ideas pointers you’d be able to share?

I understand why it works but no way could I figure out why you would so it the way you do it and with which nodes etc on my own haha

So let me see if I'm understanding this correctly, cuz the difference between parallax mapping and displacement mapping is confusing. Traditional displacement mapping actually displaces the geometry. I'm not sure about Cycles/Eevee, but in Octane Render it's displacing the surface at the render level rather than actually displacing the polygons themselves. That's how you can have high quality displacement with a low poly model. I've always seen this as a great way to get height detail without overloading a scene. It seems parallax mapping seems to imitate displacement mapping without actually displacing anything. Kind of like how bump/normal maps create the illusion of surface detail, but when you look at the edges of the model, it's still smooth and flat. It seems this parallax method would similarly break down when you're looking along the tangent of a surface. I'd imagine it's less computationally expensive though, so it'd render way faster. Interesting. Nice tutorial!

we really need loop nodes in blender shader editor

blender devs! please give us the "repeat zone" in shaders! XD

Really cool. It got me wondering tho. Could we get rid of the "layered" effect somehow ? Like calculating what the normal should be in-between based on previous plans next layer ?

In 8:36 he did not connect the 0.8, he jumped from .6 to 1 in the comparations

Doing loops in blender node editor is a nightmare. We have osl script node available but then lose the ability to run on GPU 😅

instead of doing the "drill check" wouldn't a binary search be better, so start at 0.5 then go half the way in the direction that it hints?

I only understood the skillshare ad😢😢

Looks great... Now... Is there a plugin that gives me that with a single node? 😅 I mean, if that node tree works for any plane. Then it should be collapsible for ease of use and minimizing any risks of user error? Also. Doing that operation 20 times makes me wonder, is there no way to do for-loops in blender?

funny for me it's heavier to use displacement texture as for using this method Is it just because displacement uses experimental subdev?

okay so, whats the actual use? saves performace?

how do you know? i have been searching for this a few days now

How can we bake/export it?

How to add more than one POM texture in a blend file, since multiple materials share the same height map group?

Okey thats nice but how can we writing this data to depth buffer

Doing stuff in steps like this seems weird. I think we need the node equivalent of Calculus.

Damn.. I'm spoiled by unreal engine just having a built-in POM node

Does it affect render time instead of using hight map with lot of gemoetry?

so you've achieved POM, now how about PDO with shadows so it interacts with other objects and not look flat uppon intersection?

my brain boiled