1.9 - Normal

The Normal input takes in a normal map, which is used to provide significant physical detail to the surface by perturbing the "normal," or facing direction, of each individual pixel.


In the image (above), both weapons are using the same Static Mesh. The lower one exhibits a highly detailed normal map, which provides additional detail, giving the illusion that the surface contains many more polygons than are actually being rendered. Typically, normal maps are created from third-party high-resolution modeling packages.