Shadow the Hedgehog (game)/Technical information

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Shadow the Hedgehog technical information
Main Article
Level Editing
Stage parameters
Stage ID list
Object layout format
Effect data
Spline format
Cutscene ID list

File formats

  • .ONE: the .one files are packages used to hold the textures and individual models. The header lists the one version compressor format, which is "One Ver 0.60" All the .one files all packages that keep textures and models packaged within them.
  • .BSP: Inside the multiple .ONE files in the stg0xxx directories are .PRS files, which contain .BSP files; these contain the level geometry. It seems that the level geometry is stored in numerous .ONE files for each level, except for the test levels.
  • .GNCP: These files store scripts for menus/HUD elements. The exact extension is different depending on the console version; .GNCP for GameCube, .XNCP for Xbox, .SNCP for PS2. Some *NCP's contain embedded .RWTEX format textures that it loads instead of from a .TXD.
  • .EFD: Inside the effect information data has particle effect data and of course parameters for each effect model.
  • .TXD: The usual texture pack. They are a different format from Sonic Heroes. All of the textures are kept in this pack.
  • .FOG: I'm actually not sure on what these are. I'm assuming create a fog. A .FOG file is usually in each of the stage folders and don't have much in them. Only 1 line has something on it, but even then it's not even full.
  • AudioData .BIN: These keep sound effects for what they may correspond to, such as stage objects or boss battles.
  • .PAC: Xbox version SFX / voice packs (Thanks to Neo Chaotikal)
  • .INF: Text files that contain boot and stage parameters.
  • .SFD: CG scenes/cutscenes.
  • .AFS: Packages to store something, in this case it's voices for the characters.
  • .ADX: Sound such as music or cutscene tracks.
  • .DFF: RenderWare model.
  • .BON: Model bones file.
  • .BDT: Stage visibility file.
  • .UVA: UV animation file.
  • .CCL: Object collision file.
  • .FNT: Subtitle script data.
  • .MET: Subtitle character spacing data.
  • .BIN: Binary files. Files containing "light" in their name are lighting-data for models on the stage; near-identical to the *light.bin files used in Sonic Heroes.


  • character: Where character .ONE files are kept.
  • common: This directory holds generic misc. data such as Weapon Resources and Len Flares.
  • csdFiles: Where any menu elements are kept, such as HUDs, Loading Screens, 2P Results.
  • discError: Where disc error .TXDs are kept. Exclusive to Xbox version.
  • enemy: Where enemies' and boss' .ONES are kept.
  • event: Where events, such as cutscene actions are kept. Seems to use .ONEs and .SCRs file formats.
  • fonts: Where text/fonts are kept.
  • palsel: Where PAL region's hertz screen data is kept. Not present in Xbox version.
  • sound: Where Audio Data and Sound Effects are kept.
  • stafroll: Where the .SRD and the .TXD file that make up the credits/staff roll are kept.
  • stg0xxx (stg0005 to stg0911): These are where the files that make up the stages in SHTH are kept. Usually contain .TXD files, .ONE files (which contain .PRS files, which contain .BSP and .TXD files) and .DAT files which in the stage's case make up camera data, however, some have .FOG files.
  • Root Directory: where music and other voices are kept. Also where CG cutscenes are kept. Also, there is a file that contains variety of common stage object models.

Level Geometry Name Tags

Number Tag
00 N
01 D
02 OS
03 OSL
04 O
05 OW
06 OL
07 P
08 AF
09 A
0B K
0C M
0D G

User Data

struct RpUserDataFormat
   uint32 NumberOfSections;
   uint32 StringLength;
   string DataAttribute;
   uint32 Format;
   uint32 NumberofElements;
   void* Parameters;

The following attributes are used by the game:

  • FVF.UserData - End of User Data


Parameter Values Render Pass
00 04 O
01 04 O
02 05 OW
03 06 OL
04 02 OS
05 01 D
06 08 AF
07 09 A
08 0B K
09 0D G
0A 0E GL
0B 0C M


// File: .BON File (Shadow The Hedgehog External Bone Structure file for Animations, Export from DFF Model) // Authors: Sewer56lol

// struct FILE { // struct HEADER

       	char	Activator[4];
       	uint	Null;
       	ushort  Unknown;
       	ushort  Entries;
       	float   RootOfBone;
       	char	CharacterNameID[32];
   	} header;

// struct RECORD {

       	uint	BoneTag; // Properties in 3DS
       	uint	UnknownRootID; // SomeID
       	short   UnknownValue; // Some Value
       	byte	IDOfSplit;
       	byte	UnknownID;
       	int 	NullZero;
       	float   OffsetParentBoneX;
       	float   OffsetParentBoneY;
       	float   OffsetParentBoneZ;
       	int 	Null;   		// Always Null
       	float   UnknownReferenceFloatX;  // Seems to reference something else
       	float   UnknownReferenceFloatY;  // Seems to reference something else
       	float   UnknownReferenceFloatZ;  // Seems to reference something else
       	int 	NullTwo;    	// Always Null
       	float   UnknownFloatX2; // Almost always 1
       	float   UnknownFloatY2; // Almost always 1
       	float   UnknownFloatZ2; // Almost always 1
       	int 	NullThree;  	// Always Null
       	char	UnknownTwo[16];
       	char	BoneName[32];
   	} record[ header.Entries ];

} file;

// Shadow The Hedgehog .BON Struct

// Sewer56lol

//0x10 Header: Constant

//0x10 Character Name/Identifier (Must change for porting)

//Bone Data | 0x80 Byte Entries till EOF

//0x10 X Offset of Parent Bone | Float

//0x14 Y Offset of Parent Bone | Float

//0x18 Z Offset of Parent Bone | Float

//0x60 File Name | End of Entry

//Knuckles Reference:

//kn_root = Root Bone

//kn_j_l2toge1 = Left Spines

//kn_j_head = Head

//kn_j_m1oge1 = Middle Spines

//kn_j_r2toge1 = Right Spines


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