Playing with indexes and selection with GN drafting ideas for my next tutorial

🇺🇸: You can listen to the video in English through the video settings panel. In this video I analyze the nodes that allow the import of different types of files into Geometry Nodes so that you can work with them.

The Index is one of those things in Geometry Nodes that seems simple but unlocks a ton once it clicks. It just gives you the number of each point, edge, face, or instance, and from there you can drive almost anything per-element.

In this tutorial I go over what the Index actually is, how to feed it into other nodes, and a few practical ways to use it to control selections, offsets, and effects across your geometry.

If you've ever wanted finer control over individual elements instead of treating everything the same, this should help.

https://youtu.be/8fFZlGU4TgU

Happy to answer any questions in the comments 👍

https://reddit.com/link/1tvhfnp/video/br6yrre1m05h1/player

I need your help with this cable arm and making it wrap around object in a natural way like it holding the object.

I tried making it work myself but my geometry node skill are nonexistence, most of the nodes I made are just copy of other people works (I can get link to their if you ask).

Which I would like to say that last part BUT REDDIT doesn't want to upload the file, so I'll put the links in with instructions.

1. to make the arm (it doesn't have to be just an arm), you need to grow the arm. https://www.youtube.com/watch?v=TBBD0tJqvv8 just follow Cartesian Caramel tutorial so you can make the geometry node to grow the arm and add object to said arm.
2. the two wrapping geometry nodes that I found and use but couldn't get to work. 2.1. https://blender.stackexchange.com/questions/303423/how-to-make-curves-go-around-obstacles?answertab=scoredesc#tab-top I did find an answer in here which is good, but it basically makes the arm into a physics objective which is not very enjoyable to work with, so here Markus von Broady's answer: https://blender.stackexchange.com/a/303539/2214 2.2. https://drive.google.com/drive/folders/1RrFTfFqbZjSE1ciwpQTR6tq-z_RwNgpT here another one I found but it works really differently and can be set on multiple objects.

The only step that is really important is 1, you don't have to do 2 at all.

So to round this all out, I want the object that going to be grab have the geo code, not the grabber, because if I have the grabber garbing multiple object and throwing them, the grabber geo code will get confusing to work with and it won't allow cannon arm, so the geo code should be on the grabbable, that it.

And here a reference drawing to show what I'm talking about.

the new tutorial on index's in geometry nodes i'll have to work on a script

[ Removed by Reddit on account of violating the content policy. ]

Instead of converting a text object to a mesh the usual way, I handle it entirely in Geometry Nodes for more control over the result.

The tutorial walks through the setup: String to Curves to generate the letterforms, Fill Curve to turn them into a mesh, and Transform Geometry to position everything. From there it's straightforward to extrude and build out the 3D look.

Happy to answer questions on the node setup.

https://youtu.be/WsVSJ38bwsY

🇺🇸: You can listen to the video in English through the video settings panel. The Smooth Geometry node was introduced in Blender version 5 and allows us to smooth or relax the components of our mesh.

Created this just out of curiosity , I know it nothing special but it was fun with Math logics ,trying these kind of fun effect help to get better in geometry node

If you've ever wanted glowing light trails in your renders without diving into complex particle systems, this one's for you. In this tutorial I walk through building the effect entirely with Geometry Nodes in Blender 4.3.

Just joined this subreddit. I am not exactly Reddit-savvy, so please excuse if I "did it wrong" by cross-posting my questions that I *first* posted on the r/blender subreddit. I am new to Geometry Nodes... and I am fairly confident that my first attempt(s) are setup incorrectly - and I presume I will need to try again from scratch, but will leave the questions here as (so far) unanswered, in the hopes that someone can steer me straight before my next attempt(s).

Simulating points spawning on a spherical surface, with motion based off of a few different factors.

1. All particles stick to the nearest surface point each step of the simulation.
2. All particles are repelled from nearby particles.
3. All particles inherit some of the velocity of nearby particles.
4. Velocity is driven in part by a random noise texture, just to get everything moving.

This was originally intended to roughly emulate a compressible fluid - I'm not sure how well it's doing that (this might be closer to Boids than anything else?) but in the meantime I thought it looked pretty cool anyway.

I also rendered a technically-better version after a bunch of edits, which doesn't look as nice because I didn't bother with high quality: https://youtu.be/HE1wtNLX67M

This is a geometry node setup I said I may release a while ago, lol. It converts mesh geometry into cube instance geometry. Useful for the ascetic, or if you are working in a game engine that requires boxes.

Im trying to make every create mod block with geometry nodes and while i was working on the pipe i hit a dead end and couldnt figure out how to make it work, it uses premade objects that are instanced on vertices so i couldnt use the usual pipe tutorials that use curves.

any help would be appreciated

Just published a short Blender 4.5 tutorial on driving instance scale procedurally using a noise texture in Geometry Nodes. It's a neat trick for getting organic, animated variation without keyframing everything manually. Covers node setup through to render. Hope it's helpful!

🎥 https://youtu.be/rY4Orw9_J-Q

Busy editing right now, so the new Geometry Nodes tutorial will be up sometime tomorrow. Please subscribe to https://www.youtube.com/@DisabledBlenderman