Create mesh and apply material

I am trying to creating mesh between some points but i ended up drawing lines in UMG and later i found particle system Beam to draw from source to target. But my aim is to connect all points and to create mesh and apply material to that.

In search for that i found one video for reference but i didn’t even get some clues how he did that can anyone give me some hints like how to do that and create a MESH connecting all the points

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You can use a ProceduralMesh component. Specify the vertices and triangles and you set.

Example:

Result (4 vertices, 2 triangles), with a gold material:

306797-2.jpg