# Changes

→Formids for Players

{{Trail|Modding}}__TOC__

==Formids for Players==

In Oblivion, all objects (a book, a race, a spawn point, a spawned npc) are identified by formids. Formids are eight digit hexadecimal numbers (e.g.~~0A012C436~~0xA012C436), where the first two digits represent the source mod and the following six digits are the object index.

===In-Game Formid===

===Hexadecimal Numbers===

''For folks who don't know what a hexadecimal number is...'' Okay, decimal numbers go like this: 0 1 2 3 4 5 6 7 8 9 10 11..., while hexadecimal numbers go like this: 0 1 2 3 4 5 6 7 8 9 A B C D E F 10 11 .. 19 1A 1B ... etc. Hex 'A' equals decimal 10, hex 'B' equals decimal 11, ... hex 'F' equals decimal 15. Since hexadecimal is base 16 ('hex' = six +'deci' = ten), they "roll over" at 'F' (= 15 decimal), the same way that decimal numbers roll over at 9.

==Formids for Modders==

'''This section is intended for modders only.''' It provides a bit more detail than the players section and addresses some other advanced topics.