ATX (File Format)
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ATX (Aqualead TeXture) is a texture format developed by Aqualead and found in some Wii and 3DS games (and suspected to be used in GameCube titles as well), such as One Piece: Unlimited Adventure, One Piece: Unlimited Cruise Episode 1 - The Treasure Beneath The Waves, One Piece: Unlimited Cruise Episode 2: Awakening of a Hero, One Piece: Unlimited Cruise SP and One Piece: Unlimited Cruise SP 2.
File Format
The file byte order can be either big endian (Wii) or little endian (3DS).
Header
The file starts with the following header:
| Offset | Type | Description |
|---|---|---|
| 0x00 | Char[4] | File magic. Always ALTX in ASCII. |
| 0x04 | Byte | Unknown. Always 0? |
| 0x05 | Byte | Unknown. Posibly bit flags, but files either use 0x80 or 0x81. |
| 0x06 | UInt16 | Number of slicers (N). |
| 0x08 | UInt32 | AIG file offset. |
| 0x0C | UInt16[N] | Slicer offsets. |
Slicer
| Offset | Type | Description |
|---|---|---|
| 0x00 | Byte[4] | Unknown. Possibly an asset link identifier. |
| 0x04 | UInt16 | Number of slices (S). |
| 0x06 | Byte[2] | Unknown. Always 0x0200? |
| 0x08 | Slice[S] | Slice data. |
| 0x08 + S * 8 | Unknown Data[S] | Unknown data. |
Slice
| Offset | Type | Description |
|---|---|---|
| 0x00 | UInt16[2] | X and Y position of the slice. |
| 0x04 | UInt16[2] | Width and height of the slice. |
Unknown Data
| Offset | Type | Description |
|---|---|---|
| 0x00 | UInt16[2] | Unknown. |
Tools
The following tools can handle ATX files:
- (none)
