GoogolPlexion

Hello, i want to find a shader for 1.11 that makes parts shiny. I've tried one that i found, but it was made for 1.4 it seemed to work ok, but a lot of parts were missing from it, and it wasn't very reflective. i sadly haven't been able to find any pbr shaders for 1.9 or newer, and i dont really know how i would go about making one or modifying one. Thanks in advance