BMF File Format

Unofficial BMF File Format description

Date: 2017.01 | Version: 0.6

Glossary

GR - Ghost Recon,
GRE - Ghost Recon engine
RSB - Red Storm Bitmap

Table of contents

1. Introduction

2. Overview

3. Sections

Introduction

This document describes the structure of the BMF file format used by the GRE. The GR game BMF files are stored in "Motion" folder of the original game and have an extension of ".bmf".

Overview

The BMF is character animation data file used to store bones animation data. You can create the BMF files with an official developer plugin for 3ds Max.

File structure

Table 1. BMF file structure

Length	Type	Description	Value
4	float	Animation time in seconds
4	integer	Frames count
4	integer	Bones Count	21
	array	Bones animation data array

Default number of the animation bones in the game is 21.

Table 2. Bones animation data array

Length	Type	Description	Value
4	integer	Bone name string length
4	string	Bone name string
4	integer	Position keys Count
The following is the Position keys array (x,y,z), repeated for the number of Position Keys
4	float	X
4	float	Y
4	float	Z
4	integer	Rotation keys Count
The following is the Rotation keys array (quats), repeated for the number of Rotation Keys
4	float	X
4	float	Y
4	float	Z
4	float	Angle