Talk:Project Gotham Racing 2

Reverse engineering notes for file formats

--Zaykho (talk) 10:34, 22 September 2017 (PDT)

Project Gotham Racing 2 use a .PAK container for storing 3D elements, textures and 3D configurations files.

Multiple types of .PAK name can be seen in PGR2, their names are related to their functions and indicate what type of elements are stored:

.PAK for objects ( Cache\Objects & Cache\Cars )

---

.pak

.PAK for cars ( Cache\Cars )

---

.pak_cth

.pak_hrd

.pak_opn ( only for roadster : open mode)

.pak_sft ( only for roadster : closed mode for rain)

.PAK for maps ( Game\Areas )

---

.pak_common

.pak_day

.pak_night

.pak_overcast

.pak_stream

To extract those .PAK files, a tool called quickbms and a PGR2 bms script ( both made by Luigi Auriemma ) can be used to get most of the contents stored in the archive.

When extracted, the actual content stored in the archive is sliced in sections, creating a folder for each of them.

Here an example for objects:

.PAK for objects

---

WMSH \ 00000000.dat

MAT \ 00000001.dat

GPUD \ 00000002.dat

TEXT \ 00000003.nfc

VB \ 00000004.dat

END ( nothing, no folder, no files )