BREAKOBJ Files

BREAKOBJ files contain static position/rotation data for debris from broken scenery objects (such as chairs, boxes, pots, etc).

When an object is destroyed during live game-play, the physics engine calculates the behavior/positioning of the resulting debris in real time (ignoring BREAKOBJ data). However, if an object is already broken when an area is loaded, static debris positions are loaded from the BREAKOBJ file corresponding to that area. BREAKOBJ data entries correspond to object instances, not object types; this allows for the creation of unique object fragment arrangements to avoid a "tiling" effect when objects of the same type are destroyed near each other.

There are 18 BREAKOBJ files in Dark Souls 1, each containing data for the world objects of a specific game area:

• m10_00_00_00.breakobj - The Depths
• m10_01_00_00.breakobj - Undead Burg, Undead Parish
• m10_02_00_00.breakobj - Firelink Shrine
• m11_00_00_00.breakobj - Painted World of Ariamis
• m12_00_00_00.breakobj - Unused? (Darkroot Garden?)
• m12_00_00_01.breakobj - Darkroot Garden
• m12_01_00_00.breakobj - Royal Wood
• m13_00_00_00.breakobj - Catacombs
• m13_01_00_00.breakobj - Tomb of the Giants
• m13_02_00_00.breakobj - Great Hollow
• m14_00_00_00.breakobj - Blighttown
• m14_01_00_00.breakobj - Demon Ruins, Lost Izalith
• m15_00_00_00.breakobj - Sen's Fortress
• m15_01_00_00.breakobj - Anor Londo
• m16_00_00_00.breakobj - New Londo Ruins
• m17_00_00_00.breakobj - Duke's Archives, Crystal Cave
• m18_00_00_00.breakobj - Kiln of the First Flame*
• m18_01_00_00.breakobj - Northern Undead Asylum

Visual Explanation

Location

/map/breakobj/

Tools

• None yet.

File Specs / Structure

First eight bytes are always:

42 4A 42 4F 01 17 05 08

B J B O

Researchers

• Sean Pesce