3D Modifier - Connect Points to generate splines in order to display lines
Generate lines connecting points.
This modifier allow to generate lines on a geometry that hadn't previously (as Random PointsRandom Points generated inside a volume (sphere, box or any other Smode primitive)Read More, Grid Points3D grid filled with pointsRead More or ParticlesSimulate a particle systemRead More)
By checking the "generateTriangles" you can also generate faces (beware that this option is very costly in terms of performances)
After adding this modifier, you can then add a Wireframe LinesSimple wire-frame Lines with not much optionsRead More, Thick LinesWire-frame lines with many options and who can use any 2D Layer as mapRead More or a Tube LinesGenerate tubes over geometry edgesRead More even over a particle system
Or even a SurfaceDisplay geometry's triangles as a surfaceRead More if "generateTriangles" is checked
This is what we use to do this shiny plexus effect :