Ingmar Franz (duerer)

1 answer · asked @ video mark 4:12 · Lesson: Using Normal Maps · Course: Fundamentals of Blender Materials and Shading

"Bump" node calculation.

The "Bump" node calculates the normals from the difference between the shades of grey of adjacent areas. A uniformely grey texture with just one grey value would cause no change at all no matter which grey value this texture has.