Dear Community, I’m trying to do convolution on vertices or faces of a triangle mesh (from trimesh remeshing) The problem is, the mesh is not a simple grid with rows and columns, so I cannot always use a fixed kernel–I don’t know if a mesh face has 1 or 10 neighboring vertices, for example. Could …

Can you give further details of what are you trying to do? Kangaroo2 have this: [2024-01-05 16_37_05-Window] very simple but also basilar. Otherwise you can go to scripting to access RhinoCommon topology methods for meshes… or find a plugin that give you components for the same. [imag…

Thanks for your help Riccardo! VertexNeighbors sound like a great way to start–I will elaborate the operation I want: My convolution operation is like this: I have (part of a large) matrix [ ... [...1, 2, 3, ...], [...4, x, 6, ...], [...7, 8, 9, ...], ...] to update x, I multiply with a kerne…

Sorry I’m lost. I’m not understanding what you are trying to do. Also I don’t know matrix operations… Are you trying to “smooth” values through your mesh? Check this: [image] Discrete Laplacian Grasshopper I presume you are referring to the cotan weighting option for t…

Thanks very much for the resources you pointed me to. I’m making progress after reading through them!

That’s nice. And… the thread I linked later redirect to this one: [image] Heat Method Grasshopper A script demonstrating the Heat Method for Distance Computation, as described here This came up recently in another thread , and I thought others might find it an interesting…

Convolution on triangle mesh

Grasshopper

maje90 (Riccardo Majewski) January 6, 2024, 12:42am 6

That’s nice.
And… the thread I linked later redirect to this one:

where Daniel Picker go deeper about it.

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Convolution on triangle mesh

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