Full Auto (Xbox 360) - .RXX / .PIX / .PIT / .XZP

mrmaller1905 · June 22, 2024

I got no filenames from archives. What is *.RXX / *.PIX / *.PIT / *.XZP from Full Auto and can someone make a tool to unpack data from all file formats, and how can I get filenames? DLL injection is impossible and complex for Xbox 360 games.

Samples:

https://mega.nz/folder/5LxkUYiL#F_mXXUcH_Dneb1VU7zBcHg

UndercoverBoy833 · June 22, 2024

to me, .rxx was music file according to the name of the song in it. but I also have no idea either

mrmaller1905 · May 10

On 6/22/2024 at 4:29 PM, UndercoverBoy833 said:

to me, .rxx was music file according to the name of the song in it. but I also have no idea either

Do PIXs contain 3D models and are there tools that can extract them?

FullAuto_Enjoyer · May 18

On 5/10/2025 at 2:15 AM, mrmaller1905 said:

Do PIXs contain 3D models and are there tools that can extract them?

dunno myself, like you I'm trying to grab the models and textures too. And the maps if that's possible, because I want to try to connect them all together so I can see what it'd look like as one big free roam city map

shak-otay · May 18

On 5/10/2025 at 11:15 AM, mrmaller1905 said:

Do PIXs contain 3D models and are there tools that can extract them?

Looks compressed or encrypted (or both). You could try a comtype scan (see description of quickbms).

h3x3r · May 18

PIX are compressed with zlib.

shak-otay · May 18

Thanks! Using offzip with fa_t111.pix results in some .vap (textures?) and .dat files.

Found some strings:

Quote

rtdXenon/fa_PRP_Sign_BillboardSideOfBuildingChunk
fa_prp_sign_e_billboard_perpendicularbaseChunk28

fa_Sweatshop_garageChunk90

fa_Tanker_truckdmg_stacks

One .dat checked:

Face indices are a little bit annoying. This sub mesh built at least from 178 vertices:

Edited May 18 by shak-otay

FullAuto_Enjoyer · May 18

1 hour ago, shak-otay said:

Thanks! Using offzip with fa_t111.pix results in some .vap (textures?) and .dat files.

Found some strings:

One .dat checked:

Face indices are a little bit annoying. This sub mesh built at least from 178 vertices:

OH SHIT that's the destructible parts of one of the maps! great find! (T111 is the map Turnpike according to the files!)

The vehicles have to be in one of those .pix then....

Edited May 18 by FullAuto_Enjoyer

h3x3r · May 18

I'v found connection between x2m and textures.pit

shak-otay · May 18

15 hours ago, FullAuto_Enjoyer said:

The vehicles have to be in one of those .pix then....

But in which one? I've collected 135 small point clouds from a .dat from fa_frontend.pix but can't make much sense of it:

Other sub meshes with suiting face indices are not very impressive (Tfa_PRP_constructionBarrierChunk3, Debris) :

fa_PRP_group_SmallPylon_A:

Edited May 19 by shak-otay
mesh correction

DKDave · May 18

The models are in the .drp files, once extracted from the .pix archives. Textures are .x2m (not sure what format)

Most models have several submeshes, so it will need proper analysis and a script to get all of the mesh data properly. Just a manual example of one submesh:

FullAuto_Enjoyer · May 19

oh hell yea, that's epic. I wonder if there's any unused ones....

h3x3r · May 19

I don't get it. Pointers are in LittleEndian but vertices + index is BigEndian.

Also textures are 2 byte swap. Classic x360.

FullAuto_Enjoyer · May 19

I'm gonna try and help poke around in them files, what's the steps I need to take to do so?

h3x3r · May 19

Just wait on miracle to happen.

Anyway here is struct of x2m. Already wrote Noesis script, but don't know how to read external file "textures.pit" where are stored textures with better resolution.

//------------------------------------------------
//--- 010 Editor v14.0 Binary Template
//
//      File: 
//   Authors: 
//   Version: 
//   Purpose: 
//  Category: 
// File Mask: 
//  ID Bytes: 
//   History: 
//------------------------------------------------
LittleEndian();
struct
{
    uint32 RawDataSize;
    char Sign[9];
    string File;
    uint16 TextureWidth_Low;
    uint16 TextureHeight_Low;
    uint16 TextureWidth_High;
    uint16 TextureHeight_High;
    ubyte Unknown_0,Unknown_1,Unknown_2,Unknown_3;
    uint32 Unknown_4;
    ubyte PixelFormat,Unknown_6,Unknown_7,Unknown_8;
    uint32 TextureData_Low;
    uint32 TextureData_High;
    uint32 TextureDataOffset_High;
    byte RawData[TextureData_Low];
}Texture;

And here's generic BMS script for decompressed files from pix. Maybe it's not compatible with all files...

###################################
get BaseFileName basename

get Files uint32

for i = 0 < Files
	savepos InfoOffset
	get RawDataSize uint32
	getdstring Dummy 0x09
	get FileName string
	savepos RawOffset
	
	xmath InfoSize "RawOffset - InfoOffset"
	getdstring RawData RawDataSize
	
	string InfoFileName p= "%s/%s" BaseFileName FileName
	string RawFileName p= "%s/%s" BaseFileName FileName
	
	append 0
	log InfoFileName InfoOffset InfoSize
	log RawFileName RawOffset RawDataSize
next i

Edited May 19 by h3x3r

mrmaller1905 · May 19

20 minutes ago, h3x3r said:

Just wait on miracle to happen.

Anyway here is struct of x2m. Already wrote Noesis script, but don't know how to read external file "textures.pit" where are stored textures with better resolution.

//------------------------------------------------
//--- 010 Editor v14.0 Binary Template
//
//      File: 
//   Authors: 
//   Version: 
//   Purpose: 
//  Category: 
// File Mask: 
//  ID Bytes: 
//   History: 
//------------------------------------------------
LittleEndian();
struct
{
    uint32 RawDataSize;
    char Sign[9];
    string File;
    uint16 TextureWidth_Low;
    uint16 TextureHeight_Low;
    uint16 TextureWidth_High;
    uint16 TextureHeight_High;
    ubyte Unknown_0,Unknown_1,Unknown_2,Unknown_3;
    uint32 Unknown_4;
    ubyte PixelFormat,Unknown_6,Unknown_7,Unknown_8;
    uint32 TextureData_Low;
    uint32 TextureData_High;
    uint32 TextureDataOffset_High;
    byte RawData[TextureData_Low];
}Texture;

And here's generic BMS script for decompressed files from pix. Maybe it's not compatible with all files...

###################################
get BaseFileName basename

get Files uint32

for i = 0 < Files
	savepos InfoOffset
	get RawDataSize uint32
	getdstring Dummy 0x09
	get FileName string
	savepos RawOffset
	
	xmath InfoSize "RawOffset - InfoOffset"
	getdstring RawData RawDataSize
	
	string InfoFileName p= "%s/%s" BaseFileName FileName
	string RawFileName p= "%s/%s" BaseFileName FileName
	
	append 0
	log InfoFileName InfoOffset InfoSize
	log RawFileName RawOffset RawDataSize
next i

Can you also write a file format specification for Full Auto PIX files that are compressed with zlib?

FullAuto_Enjoyer · May 19

35 minutes ago, h3x3r said:

Just wait on miracle to happen.

One can only hope for it

shak-otay · May 19

For the meshes it's just to find start of face indices for the next sub mesh, since there's more vertices than 1280.

(Offsets are different from DKDave's because I used offzip for unpacking.)

This sub mesh uses shorts for uvs:

)

There's floats interspersed (position offset maybe) before the face indices continue, after blue arrow:

So the next submesh has 45 face indices (24 vertices) only:

3rd sub mesh:

4th sub mesh:

(headlights' glasses skipped, 137 vertices)

last one, maybe. 1967 vertices :

Edited May 20 by shak-otay
update

h3x3r · May 19

3 hours ago, mrmaller1905 said:

Can you also write a file format specification for Full Auto PIX files that are compressed with zlib?

I don't think so... There is no TOC.

DKDave · May 19

Here's a QuickBMS script to extract the .pix archives with proper names. You can analyse it and write a file spec from it.

pix.zip

FullAuto_Enjoyer · May 19

Finally, these great car models may be use for more than just their game they originate!

h3x3r · May 21

Thanks to DKDave for initial script. Here's updated. Now it unpacks textures with better resolution.

# Full Auto (XBox 360, 2006)
# .PIX archive extract
# QuickBMS script by DKDave, 2025

open FDSE "textures.pit" 1

Get TEMPNAME basename
Get FILE_END asize
Math OFFSET = 0

For A = 0
	Goto OFFSET
	Get ZSIZE Long
	Get SIZE Long

	If ZSIZE = 0
		Break
	Endif

	Padding 0x800
	SavePos OFFSET

	CLog MEMORY_FILE OFFSET ZSIZE SIZE

	Goto 0 -1
	Get FILES Long -1

# Process uncompressed data in memory file

	For B = 0 < FILES
		Get SIZE Long -1
		SavePos STROFF -1
		Get FILENAME String -1
		SavePos OFFSET2 -1
		Goto STROFF -1
		Strlen STRLEN FILENAME -1
		math STRLEN - 3
		GetDString DUMMY STRLEN -1
		Get EXT String -1
		
		if EXT = "x2m"
			print "%EXT%"
			GetDString DUMMY 0x18 -1
			Get TEXTURE_DATA_HIGH Long -1
			Get TEXTURE_OFFSET_DATA_HIGH Long -1
			Goto OFFSET2 -1
			if TEXTURE_DATA_HIGH != 0
				Log FILENAME TEXTURE_OFFSET_DATA_HIGH TEXTURE_DATA_HIGH 1
				append -1
				Log FILENAME OFFSET2 32 -1
			else
				Log FILENAME OFFSET2 SIZE -1
			endif
		else
			Log FILENAME OFFSET2 SIZE -1
		endif
		Goto SIZE -1 SEEK_CUR
	Next B

	Math OFFSET + ZSIZE

Next A

And here's Noesis script for them... There may be another pixel format I don't have covered...

from inc_noesis import *
import noesis
import rapi
import os

def registerNoesisTypes():
   handle = noesis.register("Fullauto", ".x2m")
   noesis.setHandlerTypeCheck(handle, noepyCheckType)
   noesis.setHandlerLoadRGBA(handle, noepyLoadRGBA)
   noesis.logPopup()
   return 1
        
def noepyCheckType(data):
   bs = NoeBitStream(data)
   if len(data) < 20:
      return 0
   return 1
   
def noepyLoadRGBA(data, texList):
    bs = NoeBitStream(data)
    BaseName = rapi.getExtensionlessName(rapi.getLocalFileName(rapi.getInputName()))
    cPos = bs.tell()
    bs.read(4)
    Check = bs.readUInt()
    bs.seek(cPos, NOESEEK_ABS)
    
    if Check == 0:
        TextureWidth = bs.readUShort()
        TextureHeight = bs.readUShort()
        bs.read(4)
    else:
        bs.read(4)
        TextureWidth = bs.readUShort()
        TextureHeight = bs.readUShort()

    Unknown_0 = bs.readUByte()
    Unknown_1 = bs.readUByte()
    Unknown_2 = bs.readUByte()
    Unknown_3 = bs.readUByte()
    Unknown_4 = bs.readUInt()
    PixelFormat = bs.readUByte()
    Unknown_6 = bs.readUByte()
    Unknown_7 = bs.readUByte()
    Unknown_8 = bs.readUByte()
    TextureData_Low = bs.readUInt()
    TextureData_High = bs.readUInt()
    TextureDataOffset_High = bs.readUInt()
    
    if Check != 0:
        data = bs.readBytes(TextureData_High)
    else:
        data = bs.readBytes(TextureData_Low)

    if PixelFormat == 82:
        data = rapi.imageUntile360DXT(rapi.swapEndianArray(data, 2), TextureWidth, TextureHeight, 8)
        texFmt = noesis.NOESISTEX_DXT1
        print("Pixel Format > DXT1 >", PixelFormat)
    elif PixelFormat == 84:
        data = rapi.imageUntile360DXT(rapi.swapEndianArray(data, 2), TextureWidth, TextureHeight, 16)
        texFmt = noesis.NOESISTEX_DXT5
        print("Pixel Format > DXT5 >", PixelFormat)
    elif PixelFormat == 113:
        data = rapi.imageUntile360DXT(data, TextureWidth, TextureHeight, 16)
        data = rapi.imageDecodeDXT(rapi.swapEndianArray(data, 2), TextureWidth, TextureHeight, noesis.FOURCC_ATI2)
        texFmt = noesis.NOESISTEX_RGBA32
        print("Pixel Format > ATI2 >", PixelFormat)
    else:
        print("Unknown Pixel Format > ", PixelFormat)
            
    texList.append(NoeTexture(rapi.getInputName(), TextureWidth, TextureHeight, data, texFmt))
    return 1

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