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I have an array of vertices from the .obj file. I transferred it to a blender . BUT I can't create the surface.

how to combine points into a single surface ??

enter image description here enter image description here

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3 Answers 3

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This is not any old point-cloud.. working on the assumption the points are on a rectangular grid of rectangles, in the XY of its own object space, with Z as height, here's a GN modifier to derive a quad surface from it:

enter image description here

Just bureaucracy really, nothing exciting, getting counts and positions from the point-grid, as shown: (The mystery 'SZ0' node is Geometry > Transform> scale Z to 0.)

enter image description here

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  • $\begingroup$ Cool! A new use for Geo Nodes... turning junk mesh data into usable mesh data. :-) $\endgroup$
    – Mentalist
    Jun 8, 2022 at 4:51
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A vertex is just a single point in Blender. It won't be rendered.

An edge is just connection between two points in vertex. It won't be rendered.

A face is the connection of multiple edges, it will be rendered.

Additional infos: https://docs.blender.org/manual/en/2.79/modeling/meshes/structure.html

So i think you need more information than just "points". You need edges information (which points should be connected) and you need face information (which edges are used to build a face).

But yes, if your "points" are just heights of course you could convert them into a surface, but you didn't write that explicitely.

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Made a quick video tutorial related to @Edgel3D comment: (Use shrinkwrap modifier) Verteces to Surface

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