Adding custom textures

Adding custom textures to the Doom data files allows PWAD creators to create their own look in their custom maps.

An easy way to add custom textures is to simply replace the original textures, using an editor such as, for instance, WinTex. However, such an approach does not technically add new textures, it merely replaces the present ones.

A more thorough approach is to actually add new patches to the data files, and use these to create new textures. These textures can then be used along the original textures, and the end user has a bigger variety of textures with which to create his/her PWAD.