Hey, I have a question - how to achieve a geometry like this? I understand 1 step is create a flock with boid library - and this I can achieve. How can I however add this "thickness" or "liquid look"? Should I somehow extrude the boid flock paths and the smooth it?
Create history path curves or link particles into interpolated curves and use Cocoon metalines. That's both thickening and smoothing together in one step via marching cubes mesh isosurfacing of a 3D field created around each curve.