Creative Coding with Geometry Nodes 

Thank you! I assure you that I’m no genius, just a regular guy with the passion to learn and a lot of experimenting hours. If I can do it, you can do it too.

Thank you and welcome!

hi @fredozamas I figured it out. I restarted the tutorial looking for the spot where the three points were rotating. That's where I want to add the spheres. I hope you can follow my directions here: starting at the far left of the geo node tree, Mesh Line goes into 'Points' on Instance on Points. Output of Instances on Points goes to node Realize Instances. Follow the output path that goes to Scale Elements. That output goes to Set Position. The node you want is right there, the Set Position. Add a new node coming off the 'Geometry' output and make it an Instance on Points. For the 'Instance' type, I dragged a line to the left then searched for UV Sphere. I set the radius to .1 The output of the Instance on Points node goes all the way over to the right to the Geometry to Instance node. Between the Instance on Points and the Geometry to Instance nodes I added Set Shade Smooth and Set Material nodes.

@@mystery_guy Thank you, was driving me a bit crazy also pluging into random nodes lol I mean I got some interesting results by random, but couldn't achieve the spheres in place O_O

@@mystery_guy thanks mate,right on point

Sorry, i just wanted to share the corr idea. Wanted to keep the video short and interesting to follow. I leave it up to the viewer to finish it as an exercise. 😉

Haha, thanks. I only remember tau when I see others use it. It never comes to mind when I need it.

@@ilirbeqiri I was like that too then got into the habit of using it all the time, now I forget to use PI and usually do tau/2 lol

Thank you for your encouraging words. There is one thing I’ve learned over time, youtube viewers tend to skip long videos, no matter the content quality. So I put a lot of effort to compress the information and make it fit a short form. I take extra care to include all the important concepts, omitting all the redundancy and leaving every self explanatory step to the viewers as an exercise. I encourage everyone to ask questions if they have any and try my best to answer them whenever I can.

@@ilirbeqiri Thank you for your response and explanation. I appreciate the effort you put into compressing the information while still covering the important concepts. It's great to know that you're open to answering questions and providing assistance to viewers. I must admit that my struggle might stem from my own lack of experience and skill in working with Blender. While I understand the concepts taught in the tutorials, I sometimes find it challenging to transform the initial lines into a visually appealing render. Perhaps, in addition to the concise tutorials, you could consider sharing some tips or resources that could help beginners like me bridge the gap between the tutorial and creating a polished render. It could be a separate video or a short guide outlining the steps to take after the tutorial to enhance the final result. Thank you again for your dedication and the valuable content you provide. Your tutorials have been instrumental in expanding my knowledge of Blender, and I look forward to continuing my learning journey with your guidance!

Thank you. If you apply the modifier you’d be only exporting a static version of the geometry. I don’t know why you’d need that. However, to apply the deformer, you have to realize the instances first.

Duly noted. I will very soon.

Using the Fill Curve node. It should work with both renderers.

You’re in the right direction already. Align Euler to Vector (align Z axis to position vector of each sphere instance in this case), followed by an Euler Rotation (rotate just the Z axis). Feed the result into the rotation input of Instance on Points node. I didn’t include this step in the video because it would take twice as much time to explain. But that can be the subjects of another tutorial.

@@ilirbeqiri thank you my friend, I've got things running pretty good now, really looking forward to doing all your tutorials!

It takes another Alt+Click to insert it between two existing nodes.

@@ilirbeqiri I tried with Alt +click but it does not let go of the link from the first node.

@@ilirbeqiri This is weird. I wonder If is it bug or something. Because I can see hint in the panel that says Alt for toggle auto attach. But when i press Alt node still stays connected to the previous node. This is driving me crazy, if am I missing something? Could you please explain in some other tutorial how does it work? Thank you.

@@NB_nobody Sorry, maybe I didn't explain it clearly. It works it two steps, first I drag the link from the outgoing node, enter the name for the new node and click to lay it down, then Alt+Click to disconnect it from the first socket and insert it between the initial two.

@@ilirbeqiri That works in my case. But in the video it happens so fast. Is it because you have edited that part from the video that the laying down part is not visible in it?

I see you've intently followed my video. It may not seem apparent, but the position node (as all field nodes) is context dependable. The values it returns are dependent on the geometry node they are connected to. In this case the position node returns the position vectors of points for the geometry going into the Extrude node. The position field coming out of the Sample Index node returns the position vectors for the geometry branch going out from the Realize Instances node. So basically, we subtract the current position from the previous step position giving us a direction vector. I hope this makes sense.

@@ilirbeqiri it makes more sense now. I've been wondering if there is a way to use the indices from the other instances along the mesh line in a 3 dimensional way, or offset the indices to connect to the next one rather than the same one using something like the modulo operation perhaps. Great video.

@selenayang2191, this setup generates two-point mesh lines. Convert them to curves and then thicken them for render by reconverting them to mesh.

hi! how do you convert them to curves? in the geo node setup?@@ilirbeqiri

@@SantaKupca-uc3pr yes please! how do you convert them to cuve?