  Weyl points are the degenerate points in three-dimensional momentum space
with nontrivial topological phase, which are usually realized in classical
system with structure and symmetry designs. Here we proposed a one-dimensional
layer-stacked photonic crystal using anisotropic materials to realize ideal
type-II Weyl points without structure designs. The topological transition from
two Dirac points to four Weyl points can be clearly observed by tuning the
twist angle between layers. Besides, on the interface between the photonic
type-II Weyl material and air, gappless surface states have also been
demonstrated in an incomplete bulk bandgap. By breaking parameter symmetry,
these ideal type-II Weyl points at the same frequency would transform into the
non-ideal ones, and exhibit topological surface states with single group
velocity. Our work may provide a new idea for the realization of photonic Weyl
points or other semimetal phases by utilizing naturally anisotropic materials.
