Here's an implementation of 2d Worley noise using a hexagonal grid with one-point per cell: https://www.shadertoy.com/view/ltjXz1 https://www.shadertoy.com/view

Here's an implementation of 2d Worley noise using a hexagonal grid with one-point per cell: https://www.shadertoy.com/view/ltjXz1 https://www.shadertoy.com/view/ltjXz1 This version may still have artifacts when the points fall too close to a cell boundary.