how to do this shape with geometry nodes and how to change the seed for it,its very simple but dont know how to do it
Well ! it look simple , I’m not sure it’s easy in practice !
You have to break that down in multiple, simpler elements…
The first thing you can look into is a way to take a curve and add two other at the end of it :
Then to make it rounded I think there is a builtin geometry node group in the essential that extrude curves and add rounded caps
But you won’t get the smooth transitions between branches, for that you need to convert that to a volume and then to mesh.
Once these things are figured out, you can start ot build something more complex using a loop to make it recursive.
Problem is , when you do it manually there is a lot of implicit rules that makes it look good and balanced , eventually they’ll be hard to recreate, especially since when you work you also break those rules for aesthetic reasons…
The simplest stuff that is hard to make is to avoid one branch passing into another one, how to tell the nodegraph to avoid that ? : it’s pretty complex…
Or you take a more “real” approach, by making the branch grows in area where there is some space, like plants do, but it’s already quite technical as you’ll need to inspect the surroundings to see potential space for a branch to grow…
To me , we might be looking at a couple of days of work for an experienced artist to get something correct.
Anyway, another solution could be to make something a bit intermediate, like if you manage to solve the first step of the problem I was mentioning you might be able to make a tool where you draw the main structure and some details are added so you save some time there without tacking the complexity of the full system.
But keep in mind it’s complex, if you’re new to this and everything I mentioned is something you need to figure out, this might be too complicated for you to look into and you might end up being lost.
Maybe look for tree tutorials to get your feet wet , it’s probably going to show a few things you can start to use.
Finally , maybe also think about what is your goal here : if it’s to learn GN and you already have some basics, it might be a great learning opportunity to take that a step further, even if it’s not the simplest. But you might spend quite some time .
If it’s to get a result, maybe modeling 10 of those might be enough to break the repetition and much faster than to learn how to do it procedurally.
Lastly even if something look simple doesn’t mean it’s going to be easy… On my portfolio I have an experiment that was about doing an array of book that feels natural, and it was one of the most challenging problem I had to solve in GN to this day. Even though the result is far from being impressive compared to other projects I did…
Good luck and happy to discuss that further if you like !
thx hope a geometry node expert to come and show me with a screenshot,give the task to ai but it confuses me
Yeah ! Maybe someone will see that as a weekend challenge learning opportunity, IMO it’s a bit too complex for someone to spend the appropriate time to provide something as an answer like it could be for simpler narrow scope problem. But maybe someone has a cool trick I didn’t think about…
As for AI I’m not surprised they got lost here. Best chances would be to break down the thing in smaller elements so it’s simpler for the AI to solve, but in the meantime you’ll have to put everything together and fix mistakes which is challenging when it’s not your nodes in the first place.
Since you’re not going to look into it yourself, maybe try in the volunteer work category so it’s a bit more clear and maybe someone might find that interesting to look into, I think it definitely is… I won’t hold my breath though but it might be worth a shot…
Also might be worth looking at BF’s Gold project as they have a bunch of coral stuff so you may pick something there, even though their assets are CC-by …
the node tree i dont think its complex but im a noob,beginer at geometry nodes,but for someone who works with geometry nodes every day its easy peasy
hahaha, I mean no disrespect but how can you be so sure if you’re still at beginner level ?
I’ve had my fare share of procedural vegetation, it’s not always difficult, but as said, in your case avoiding branches to intersect is quite challenging already.
On a regular tree, branches are thinner and there is so much visual noise that you won’t pay attention that they pass through each other.
I’m not saying that this is impossible , but to get something as refined as your example in the way each branches looks good, it’s not that simple… But as said , maybe someone else would know a quick and easy trick and then you’ll be right !
its hard to know all the aspects of blender,to much info to digest,so i focus on modeling,sculpting,texturing,animation and lighting,i dont have that good of a memory
Yes ! There is definitely no problem with that, in fact it’s a sane way to approach 3D to focus on a few areas at a time instead of trying to touch every areas and get lost. What you do is great and there is very cool work in your portfolio.
My point was just that you where assuming that what you ask is easy to do and in the meantime you said geometry node is not your area of expertise. My question was how can you be so sure that it’s easy to do if you can’t evaluate what is needed in order to make it work ?
In the end it’s not a big deal, but even if there is a lot of fancy demo of geometry nodes out there , it doesn’t mean :
Some simple stuff can turn out to be extremely difficult, and not everyone has the same set of skills some people are more versed in maths, physics or other areas…
Anyway, this isn’t solving your problem and going a bit off topic… it’s just that given my experience I’d say it’s more challenging that it looks, but since there is a lot of way to approach a problem maybe someone will jump in with a clever hack … who knows…
Hi, There is a coral generator for blender:
https://www.youtube.com/shorts/8MP4zRn_iDw
or try this tutorial:
i think its simple,just like a tree,but for someone new its dificult,even the basics in blender are dificult for someone new who didnt work with similar programs,or didnt watch any tutorials,but for me the basics are easy peasy,same for you
Figuring out the math part and translating the formula to geometry nodes is probably the hard part.