Halo 3's development tools used the third party software FaceFX Studio used for generating lipsync animations. Unfortunately this tool was absent from the public release of the development kit due to licensing issues.

I was able to locate a copy of FaceFX Studio online in the Dragon Age Origins toolset, but this version of the tool had been modified by BioWare and was incompatible with Halo 3.

To remedy this, I created a middle-man tool which would allow Halo 3's tools to interface with this version of FaceFX.

• Reverse engineered Bungie's .FFX binary facial animation format

• Reverse engineered facial animation phoneme poses from limited documentation

• Created a tool which interfaces with Halo 3's tools to forward commands to DAO's FaceFX Studio and vice versa

• Tool converts FaceFX's .LTF facial animation format to .FFX