Specifies whether or not all textures following this command should be mipmapped. By default, mipmaps are on.
Note that since textures are shared between objects, the mipmap state of a particular texture is global. In other words, a single texture cannot appear both mipmapped and non-mipmapped at the same time in a world, neither on the same object nor across different objects.
<mode> either "on" or "off"