fromPointAndDirection = (out, point, direction) => {
  const unit = vec3.normalize(vec3.create(), direction)

  vec3.copy(out[0], point)
  vec3.copy(out[1], unit)
  return out
}
Create a line from the given point (origin) and direction.

The point can be any random point on the line.
The direction must be a vector with positive or negative distance from the point.

See the logic of fromPoints() for appropriate values.

@param {line3} out - receiving line
@param {vec3} point - start point of the line segment
@param {vec3} direction - direction of the line segment
@returns {line3} out
@alias module:modeling/maths/line3.fromPointAndDirection