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Talk:Project Gotham Racing 2

2017-09-22T18:08:56Z

Zaykho: /* Reverse engineering notes for file formats */

== Reverse engineering notes for file formats ==

--[[User:Zaykho|Zaykho]] ([[User talk: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 [http://aluigi.altervista.org/quickbms.htm quickbms] and a [http://aluigi.altervista.org/bms/project_gotham_2_pak.bms PGR2 bms script] ( both made by Luigi Auriemma ) can be used to get most of the contents stored in the archive.

When extracted, the content stored in the archive is sliced in sections, creating a folder for each of them and joining a file with the actual contents in it, mostly with a '''.dat''' suffix.

Here an example for objects:

'''.PAK for object : red_cone.pak '''

----

WMSH \ 00000000.dat

MAT \ 00000001.dat

GPUD \ 00000002.dat

TEXT \ 00000003.nfc

VB \ 00000004.dat

END ( nothing, no folder, no files )

'''WMSH''' or sometime '''MESH'''

----

The ''00000000.dat'' file contain the '''faces indices''', and ''supposedly'', the '''strip''' and the how the vertices are read '''( float, word ? )'''.

'''MAT'''

----

The ''00000001.dat'' file contain the '''material''' properties : diffuse, specular, ambient etc... of each material applied to the 3D file.

'''GPUD'''

----

The ''00000002.dat'' file contain all the '''textures''', each of them followed by a small part of data ''( texture configuration ? mipmaps ? )''. Finally, after all the textures, the '''vertices and UV position''' are stored in one chunk of data.

'''TEXT'''

----

The ''00000003.dat'' file contain all the '''text and name''' related to the texture, it also indicate where each textures are located inside '''GPUD'''.

'''VB'''

----

The ''00000004.dat'' file contain the '''start address offset''' of the vertices and UV section in the '''GPUD'''. If the 3D mesh have multiples groups/sections, the VB file will store each address.

Talk:Project Gotham Racing 2

2017-09-22T18:08:18Z

Zaykho: /* Reverse engineering notes for file formats */

== Reverse engineering notes for file formats ==

--[[User:Zaykho|Zaykho]] ([[User talk: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 [http://aluigi.altervista.org/quickbms.htm quickbms] and a [http://aluigi.altervista.org/bms/project_gotham_2_pak.bms PGR2 bms script] ( both made by Luigi Auriemma ) can be used to get most of the contents stored in the archive.

When extracted, the content stored in the archive is sliced in sections, creating a folder for each of them and joining a file with the actual contents in it, mostly with a '''.dat''' suffix.

Here an example for objects:

'''.PAK for object : red_cone.pak '''

----

WMSH \ 00000000.dat

MAT \ 00000001.dat

GPUD \ 00000002.dat

TEXT \ 00000003.nfc

VB \ 00000004.dat

END ( nothing, no folder, no files )

'''WMSH''' or sometime '''MESH'''

----

The ''00000000.dat'' file contain the '''faces indices''', and ''supposedly'', the '''strip''' and the how the vertices are read '''( float, word ? )'''.

'''MAT'''

----

The ''00000001.dat'' file contain the '''material''' properties : diffuse, specular, ambient etc... of each material applied to the 3D file.

'''GPUD'''

----

The ''00000002.dat'' file contain all the '''textures''', each of them followed by a small part of data ''( texture configuration ? mipmaps ? )''. Finally, after all the textures, the '''vertices and UV position''' are stored in one chunk of data.

'''TEXT'''

----

The ''00000003.dat'' file contain all the '''text and name''' related to the texture, it also indicate where each textures are located inside '''GPUD'''.

'''VB'''

----

The ''00000004.dat'' file contain the '''start address offset''' of the vertices and UV section in '''GPUD'''. If the 3D mesh have multiples groups/sections, the VB file will store each address.

Talk:Project Gotham Racing 2

2017-09-22T18:06:05Z

Zaykho: /* Reverse engineering notes for file formats */

== Reverse engineering notes for file formats ==

--[[User:Zaykho|Zaykho]] ([[User talk: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 [http://aluigi.altervista.org/quickbms.htm quickbms] and a [http://aluigi.altervista.org/bms/project_gotham_2_pak.bms PGR2 bms script] ( both made by Luigi Auriemma ) can be used to get most of the contents stored in the archive.

When extracted, the content stored in the archive is sliced in sections, creating a folder for each of them and joining a file with the actual contents in it, mostly with a '''.dat''' suffix.

Here an example for objects:

'''.PAK for objects : red_cone.pak '''

----

WMSH \ 00000000.dat

MAT \ 00000001.dat

GPUD \ 00000002.dat

TEXT \ 00000003.nfc

VB \ 00000004.dat

END ( nothing, no folder, no files )

'''WMSH''' or sometime '''MESH'''

----

The ''00000000.dat'' file contain the '''faces indices''', and ''supposedly'', the '''strip''' and the how the vertices are read '''( float, word ? )'''.

'''MAT'''

----

The ''00000001.dat'' file contain the '''material''' properties : diffuse, specular, ambient etc... of each material applied to the 3D file.

'''GPUD'''

----

The ''00000002.dat'' file contain all the '''textures''', each of them followed by a small part of data ''( texture configuration ? mimaps ? )''. Finally, after all the textures, the '''vertices and UV position''' are stored in one chunk of data.

'''TEXT'''

----

The ''00000003.dat'' file contain all the '''text and name''' related to the texture, it also indicate where each textures are located inside '''GPUD'''.

'''VB'''

----

The ''00000004.dat'' file contain the '''start address offset''' of the vertices and UV section in '''GPUD'''. If the 3D mesh have multiples groups/sections, the VB file will store each address.

Talk:Project Gotham Racing 2

2017-09-22T18:02:05Z

Zaykho: /* Reverse engineering notes for file formats */

== Reverse engineering notes for file formats ==

--[[User:Zaykho|Zaykho]] ([[User talk: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 [http://aluigi.altervista.org/quickbms.htm quickbms] and a [http://aluigi.altervista.org/bms/project_gotham_2_pak.bms PGR2 bms script] ( both made by Luigi Auriemma ) can be used to get most of the contents stored in the archive.

When extracted, the content stored in the archive is sliced in sections, creating a folder for each of them and joining a file with the actual contents in it, mostly with a '''.dat''' suffix.

Here an example for objects:

'''.PAK for objects : red_cone.pak '''

----

WMSH \ 00000000.dat

MAT \ 00000001.dat

GPUD \ 00000002.dat

TEXT \ 00000003.nfc

VB \ 00000004.dat

END ( nothing, no folder, no files )

'''WMSH''' or sometime '''MESH'''

----

The ''00000000.dat'' file contain the '''faces indices''', and ''supposedly'', the '''strip''' and the how the vertices are read '''( float, word ? )'''.

'''MAT'''

----

The ''00000001.dat'' file contain the '''material''' properties : diffuse, specular, ambient etc... of each material applied to the 3D file.

'''GPUD'''

----

The ''00000002.dat'' file contain all the '''textures''', each of them followed by a small part of data ''( texture configuration ? mimaps ? )''. Finally, after all the textures, the '''vertices and UV position''' are stored in one chunk of data.

'''TEXT'''

----

The ''00000003.dat'' file contain all the '''text and name''' related to the texture, it also indicate where each textures are located inside '''GPUD'''.

Talk:Project Gotham Racing 2

2017-09-22T17:34:19Z

Zaykho: /* Reverse engineering notes for file formats */ new section