BIS File Formats

3D Model File Formats

There are two (2) types of 3D model files used by BIS's game engine, MLOD and ODOL.

MLOD File Formats

• MLOD 3D models are uncompressed or unbinarized files.
• This type of model file is editable in BIS's modelling tool application(s).
• There are essentially two (2) versions of MLOD model types, SP3X and P3DM.
• SP3X MLOD version is primarily for use with BIS's Operation Flashpoint game.
• P3DM MLOD version is primarily for use with BIS's Armed Assault game.

The following links refer to articles describing the layout of MLOD files by community members - not by BIS or BIS employees. And as such may or may not be accurate.

MLOD SP3X (original)

MLOD SP3X File Format (revised)

MLOD P3DM File Format

ODOL File Formats

• ODOL 3D models are compressed or binarized versions of the MLOD model file.
• This type of model file is not editable.
• There are essentailly two (2) versions of ODOL model types, ODOL v7 and ODOL v40.
• ODOL v7 model files are the equivalent MLOD SP3X model file converted to compressed or binarized form. The game content released for OFP by BIS is primarily in this format.
• ODOL v40 model files are the equivalent MLOD P3DM model file converted to compressed or binarzied form. The game content released for ArmA by BIS is primarily in this format.

The following links refer to articles describing the layout of ODOL files by community members - not by BIS or BIS employees. And as such may or may not be accurate.

ODOL v7 (original)

ODOL v7 File Format (revised)

ODOL v40 File Format