Andrew Price on Twitter: "Just discovered that increasing "Distance" in bump node can create better results. Can anyone explain what it actually does? #b3d https://t.co/ryJM8yIKdV" / Twitter
Adding Normal and Bump Maps in Blender 2.80 - YouTube
Displacement — Blender Manual
Verge3D for Blender: Shader Nodes Reference - Soft8Soft
Blender] Understanding Bump Maps and Normal Maps | STYLY