Introduction Blending of normal maps has been used extensively in computer graphics to break repetition patterns, add granularity to surfaces, and achieve a more realistic look. Examples of that are: Adding micro detail when rendering sea waves Simulating skin wrinkles Transitioning smoothly between different materials When creating game assets, it’s common practice to use layer blending in image editing tools such as Photoshop to achieve this effect, however the issue with this approach is...
