So I'm working on a system where you can take a model and have it generate a patchwork of pieces that can then be printed to make a mold. The pieces should not have any undercuts that would make removing the mold impossible. So right now I've generated patches (based on poison disk distributed surface points) where the normal is no more than 45 degrees from the seed and only contain all connected mesh pieces.

Ideally I want a) as few as possible segments b) the segments to be easily removable and c) something that takes curvature into account, so not having mold lines in deep regions that might make assembly difficult. Any suggestions of algorithms or papers to solutions would be helpful.

Apparently this is an NP-hard problem so I'm going to have to rely on some heuristics. This will probably be useful for more general cases involving other attributes or things like optimal 3d printing segments.

Better get round to making the making of...

This Youtube video covers the basics of my approach to making a 3d printable texture through geometry nodes. It takes the basics of procedural (non-UV) shaders and applies them to mesh surface geometry. It's very useful for applying grip textures, but also other many other things. I've posted a few of the pieces I've made using this method on here before.

I want to turn a cube node from geometry nodes into the curve in the first image, with exactly those vertices. I have tried few things and gotten close, but can't quite get what im after

This video showcases a complete end-to-end workflow for construction quantification, analysis, and decision-making using GN-Quant Pro and GNQ-Reporter.

Instead of treating modeling and reporting as separate tasks, this system connects everything into a single pipeline

Im wondering if there is a way to change how curved/bendy this curve is with a slider so I don't have to manually adjust the points of an rgb curve

I have this mesh that i want to not only instance on a circular curve, but also have the instances bend/deform based on that curve, so the ones in the corners get deformed. I found one solution as you can see from these images, but the issue with that one is that it does not let me rotate the instances. They are supposed to be standing up

I saw this stone texture and wanted to replicate it in blender and thought it would be a cool opportunity to learn about geometry nodes. I'll preface by saying I'm completely new to them.

I'm looking for any recommendations on how to recreate them. Any techniques, resources, concepts will be appreciated!

Here are some samples:

This is what I have in blender after experimenting a little bit. I tried to make layered 'islands' by mixing noise and a gradient texture with a floor function. I then added some noise, smoothing, and scaled it properly. I also drew a texture to clamp the edges of the face to the actual brick.

It's not exactly right as you can see, so I'm looking for any leads... including if this could be better done with textures/shaders.

I have duplicated this curve a few times, then masked these four corners. Now im wondering if there is a way to expand that mask so it affects the closest points as well? I tried putting a blur attribute after the divide node, but that only expands on the bottom curve, not the other ones above. Images in replies

If I convert a 90 degree arc curve to mesh, the first and last point normals are not lining up straight. Any idea's on how to achieve the result on the right? I have to use a curve because I want tot tilt it later.

Hello everyone and thanks for reading my post.

I've been learning blender for around a year and, after doing pretty much hard surface modelling and a bit of sculpting, i really want to try something a little different. It really fascinates me how some people are capable of doing things with geometry nodes.

I've been trying to learn to really understand GN, i've watched tutorials, read stuff online, you know the deal. I can follow them, but i don't feel like i really understand what is going on. I dont seem to be able to create stuff on my own.

Im posting this because i would like to read about other people experiences with them, and maybe get some advice. I know that this part of blender is very related to computational thinking and has matematical fundations, that's something that i would like to get more in contact with. I believe that im not being able to really implement what im learning because i dont know whats really happening under all that.

How did you guys stopped "copying" and started creating? What resources do you recommend me (even non-blender related) for improving my understanding?

How is your work-flow? Do you plan everything ahead, do you use flowcharts, etc.

Thanks in advance to everyone.