Additional Resources mod is a Minecraft API designed to add loose resources to the game without needing to install a texture pack. Created by username portablejim, this mod can be used by aspiring mod developers.
What the Mod Offers
The mod creates a new directory that allows mod developers to add their own resource packs along with their mods. The mod is mainly designed for mods that have user-defined content that needs to be loaded as a resource. In itself, the mod does not have a GUI.
Should You Install It?
If you are planning on creating a mod that might use user-defined content, then you might look into installing the mod.
The mod will create a directory (or you can create it yourself) next to the mods directory called “mods-resourcepacks“.
Inside that folder, put what would be in the assets folder, except for “pack.mcmeta“.