Is Jason Zink's book "Practical Rendering and Computation with Direct3D 11" (2011) still relevant anno 2017 for delving into D3D11? The book does not seem to use the legacy DirectX SDK, which is good. But on the other hand uses a custom engine, Hieroglyph, which diverged from its initial implementation (2011). Hieroglyph now also uses DirectXTK. Was this already the case for the book and if so does the book consider DirectXTK as a black box?