2D and 4D GLSL implementations not included?

[VaradDerivative]

Hey k.jpg,

I'm looking at the GLSL implementation of both OpenSimplex2(F) and OpenSimplex2S, and it looks it includes only the 3D implementation. Both openSimplex2_Conventional() and openSimplex2_ImproveXY() input vec3s only. Am I missing something or are the 2D and 4D implementations not included?

Thanks!

[VaradDerivative]

Further, there is quite of a difference between the GLSL (and HLSL) implementations vs java and the rest of the languages. Why is that the case?
Thanks