lwjgl3-demos VS vulkanbook

I've been searching the solution everywhere but without results. I checked a lot of C++ examples and it seemed that everything "was in the right place", I checked also the VoxelGameGL in lwjgl3-demos but it is not so straightforward and it is rendering only cubes, so it is not the same case.

This is the book, written for Vulkan using LWJGL 3: https://github.com/lwjglgamedev/vulkanbook. I followed most of it (12 chapters), and I must say despite encountering some nasty bugs in the text (which I filed issues and the authors promptly fix them, within 12 hours!), it was one rare of a tutorial which I can actually follow all the way up to the more advanced material and still have working codebase that does the same thing as the demo. It is excellent if you want to learn Vulkan, simply because it doesn't stop at drawing a triangle. It goes all the way to writing a deferred PBR renderer, shadows casting, and even skeletal animations and GUI.