Cogl.vector3_distance

function vector3_distance(a: Number(gfloat), b: Number(gfloat)): Number(gfloat) {
    // Gjs wrapper for cogl_vector3_distance()
}
  

If you consider the two given vectors as (x,y,z) points instead then this will compute the distance between those two points.

Since 1.4

a

The first point

b

The second point

Returns

The distance between two points given as 3 component vectors.