code: function lerpV(a, b, t, dst) {
    dst = dst || new VecType(3);
  
    dst[0] = a[0] + t[0] * (b[0] - a[0]);
    dst[1] = a[1] + t[1] * (b[1] - a[1]);
    dst[2] = a[2] + t[2] * (b[2] - a[2]);
  
    return dst;
  }
docs: Performs linear interpolation on two vectors.
  Given vectors a and b and interpolation coefficient vector t, returns
  a + t * (b - a).
  @param {module:twgl/v3.Vec3} a Operand vector.
  @param {module:twgl/v3.Vec3} b Operand vector.
  @param {module:twgl/v3.Vec3} t Interpolation coefficients vector.
  @param {module:twgl/v3.Vec3} [dst] vector to hold result. If not new one is created..
  @return {module:twgl/v3.Vec3} the created vector
  @memberOf module:twgl/v3