New Blender Hair Tools Part 1: Basic Braid Shapes

[@lanceprime3003]

For anyone struggling with the "Control-Shift-Right click" at 9:00 minutes in. You need to enable the node wrangler add-on in preferences. ;)

[@btn237]

It’s amazing that you’re able to implement this paper inside of Blender, the result looks incredible (anyone who is thinking that this is too much for them to understand - don’t worry, the GN system means that artists who do understand the mathematics can package up into something user friendly for others). Another tip I recently discovered for having a cleaner node tree is that you can have as many instances of the group input node as you like, and place them near to where you need them, meaning you don’t have to have connections stretching back all the way to the beginning. You can also collapse unused sockets, so you can have a group input that’s just one or two items from a really long list.

[@JohnnyMatthews]

Yeah that’s a great tip!

[@kaludgo5811]

great tutorial. I'm still a little bit scared of how complex geometry nodes are but your videos gave me the will to learn more about them.

[@JohnnyMatthews]

You can do it! Just keep experimenting!

[@lawrencedoliveiro9104]

4:22 whether the interval is [0, N - 1] or [1, N] doesn’t matter, since the sine function is periodic and identical for i = 0 and i = N.

[@JohnnyMatthews]

Good point

[@johnsmith56920]

Ok. I went through it and it is great. Thanks. On to part 2! Whoopie!!!!

[@webtvhostitatibaweb]

First of all congratulations for the excellent explanation video I would just like to know how I make the braid as thick as a ball of yarn for a clown wig and how I change the color of this yarn. I suggest making a video on the subject. I can't wait and thank you in advance

[@michaelwhite4810]

Very useful formula!

[@JohnnyMatthews]

I thought so, Pixar's people are pretty cool.

[@sol_mental]

I GOT IT, I GOT IT!!! Thanks, teacher Johnny!! That sure was a spin of a few days!!! Thank you so much for all the fun and braids! : 3

[@JohnnyMatthews]

Awesome!

[@spikecool50]

Baree mathematics, amazing tutorial brushing up the math skills may be a route i may have to go down🤣

[@spikecool50]

Also, may I ask where you write on the screen change to factor, do I change both x and y to factor or just x?

[@spikecool50]

Because I'm about 9 mins in and when i change the input to length on both I see what's in the tutorial but on factor i see something very diffrent

[@eugenecampbell8676]

9:45. When I add the combine XYZ to capture attribute I just get a straight line. I am using Blender 4.0.2. Help Please!

[@Olstman]

Mindblowing as always! I can't figure out how to come to understand this!

[@JohnnyMatthews]

Thanks

[@wilsimarbr]

Amazing... This math formula to geonodes graph tutorial is really an useful thing.. I hope you do more videos like this.. Thank you.

[@JohnnyMatthews]

Thank you, I will

[@ffuthoni]

Thank you so much for this tutorial. Is it possible to set smaller radius at the intersection of the braid?

[@strivingoverit]

pls help me....i have done exactly same node setup but my braid still looking flat! Is there any solution?

[@activemotionpictures]

Fantastic!! Thank you so much for sharing this!

[@JohnnyMatthews]

You’re very welcome!

[@man_art_man]

That was neerds crazy but insane! Cool work! Your brain level is awesome! Thanks a lot for this Math Tutorial!

[@JohnnyMatthews]

Glad you liked it! I was worried it was a bit much.

[@recurveninja]

Very cool, it's incredible the kind of things people come up with using geonodes. The new hair system looks neat too - do you know if it's possible to do physics simulations on the resulting hair?

[@JohnnyMatthews]

Well if you put the physics before the geonode it can work. Afterwards is tricky I think.

[@robertabovian]

Hi there! when i add an empty hair curve and in sculpt mode i place a strand, it is way to big for my head sculpt, so when I add the geo node modifier with the braid control type it"s also waay to big, any way to adjust the scale of the hairstrand so it's in proportions to my model and its head?

[@rhopinu]

Even after setting the domain to spline in duplicate elements node and adding resample Curve, I don't get any visible feedback. What am I doing wrong?

[@burnaboyb8821]

maybe i do something wrong but how you add a thickness with the "set_curve_radius" node only (14.20) without "curve_to_mesh"+curve profile as at 13.00?

[@ScorgeRudess]

This is very very cool, but its too much for my brain xD, I was able to follow all the video, but I dont think I can do it by myself.

[@amrtahtawi]

It’s a lot of math 😅 I like Johnny’s explanation and I would highly appreciate if he can share this file on his gumroad for a better study and follow up with this video

[@JohnnyMatthews]

Yeah, I need to get my master file cleaned up an put up on Gumroad.

[@amrtahtawi]

@@JohnnyMatthews that would be wonderful 🙏

[@npj5578]

Hey Johnny, question, what are the benefits of breaking up your geo nodes into different geo nodes modifiers in this tutorial series rather than doing it all in one node tree?

[@JohnnyMatthews]

Two reasons: I was trying to show how each node was affecting the curves and by making a nodegroup a top level in a modifier it exposes the inputs to the ui rather than making tweaks in the node tree itself. Other than that there is no benefit.

[@DanielPartzsch]

Awesome! So as far I can see with the new curves object you can not change the spline type to eg nurbs or bezier to get more smooth interpolation results with fewer curve points but instead you just resample the curve as much as needed and they get smoothed at render time then... Is this correct? Thanks a lot.

[@Elyakim_binenstock]

Damn I feel so smart after this video😂😂😂

[@JohnnyMatthews]

🤣

[@cosmosmythos]

Quite the opposite for me😂, how would you even come up with these equations/functions?

[@IGarrettI]

Hey, my curve doesnt have enough resolution , and neither of the sliders are helping. If I go to the render settings and subdivide the curves, it helps (adds more braid rows to it). How do I add it in the geometry nodes, so no all of my curves in the scene get subdivided?

[@JohnnyMatthews]

Add a geo node modifier first in the stack. Put a resample curve node in it. Then apply that modifier.

[@jeffreyspinner9720]

You're killin' me man, @4:33 you want to add one to the index, so you use an Add node and add 0.5... may I ask why not 1.0? What is this voodoo you do? I want to make the first Astronaut in 2001 A Space Odysee have helmet hair (Viking Style)... this is slowing me down, because I have an infinite number of ways to procrastinate (!) But I'm serious, simple error, using some native rounding, so it was parsimonious (I use parsimonious like minimum step(s)), what...?

[@JohnnyMatthews]

Simple error that was saved by rounding. My apologies.

[@johnsmith56920]

Well, I still have to go through it but I am pessimistic. When there are discrepancies between what you say and what you do on a tutorial the result is often poor. For instance at some point since we must have a beta/alpha ratio of 0.5 you decided to set alpha at 2 and beta at 1. As far as I can see you have an alp^ha value of 0.5.

[@JohnnyMatthews]

Hmm, well sometimes a bit gets edited out because of bad audio, a blender crash or something. Sorry to disappoint.

[@naughtynome4491]

@@JohnnyMatthews i believe you explained it near the beginning. Either way, diving by half is the same as multiplying by 2, both should work if that's the way they want to do it

[@Lyco0n]

no way to understand this math

[@JohnnyMatthews]

Yeah, the math itself is complex. I don't fully understand it. However, I can translate it to nodes and use the results.

[@naughtynome4491]

@@JohnnyMatthews the most important part of it all! translating to geo nodes:) wish i'd learned more math to be able to take a crack at it myself