Normal map is a texture asset created to add illusion of depth of the surface model. It is used to add details such as bumps or dents without effecting the model structure.
Using a Normal map incorrectly will only add of data without improving visual result. Always remember to check that your Normal maps are worth the data.
It is recommended to use normal maps on either reflective materials or to create district shapes.
Updated on: 07/03/2023