AIG (File Format): Difference between revisions

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= File Format =
= File Format =
The file byte order can be either big endian (Wii) or little endian (3DS).
The file byte order can be either big endian (Wii) or little endian (3DS).
== Header ==
The file starts with the following header:


== Header ==
== Header ==
Line 18: Line 15:
| 0x04 || Byte || '''Format type'''. 0 is used in [[AFT]] font files, 2 elsewhere?
| 0x04 || Byte || '''Format type'''. 0 is used in [[AFT]] font files, 2 elsewhere?
|-
|-
| 0x05 || Byte || {{Unknown-left|'''Unknown'''. 1 if using alpha?}}
| 0x05 || Byte || {{Unknown-left|'''Unknown'''.}}
|-
|-
| 0x06 || UInt16 || {{Unknown-left|'''Unknown'''.}}
| 0x06 || UInt16 || {{Unknown-left|'''Unknown'''.}}
Line 41: Line 38:
| 0x20 || UInt32 || '''Texture data size''' in bytes.
| 0x20 || UInt32 || '''Texture data size''' in bytes.
|- bgcolor="#DDFFDD"
|- bgcolor="#DDFFDD"
| 0x24 || Byte[4] || {{Unknown-left|'''Unknown'''.}}
| 0x24 || Byte || '''Magnification filter'''. 0 = Nearest, 1 = Linear
|- bgcolor="#DDFFDD"
|- bgcolor="#DDFFDD"
| 0x28 || Byte[24] || {{Unknown-left|'''Unknown'''. Padding?}}
| 0x25 || Byte || '''Minification filter'''.
{| class="wikitable"
|-
! Value !! Type
|-
| 0 || Nearest
|-
| 1 || Linear
|-
| 2 || Nearest_Mipmap_Nearest
|-
| 3 || Linear_Mipmap_Nearest
|-
| 4 || Nearest_Mipmap_Linear
|-
| 5 || Linear_Mipmap_Linear
|}
|- bgcolor="#DDFFDD"
| 0x26 || Byte|| '''Wrap S'''. 0 = Clamp, 1 = Repeat, 2 = Mirror
|- bgcolor="#DDFFDD"
| 0x27 || Byte || '''Wrap T''', same enum as above.
|- bgcolor="#DDFFDD"
| 0x28 || Float || '''LOD bias'''.
|- bgcolor="#DDFFDD"
| 0x2C || Byte || '''Edge LOD enable'''.
|- bgcolor="#DDFFDD"
| 0x2D || Byte || '''Min LOD'''. The level of the first image stored.
|- bgcolor="#DDFFDD"
| 0x2E || Byte || '''Max LOD'''. The level of the last image stored.
|}
|}


== Image Formats ==
== Image Formats ==
Line 79: Line 103:
| GIA8 || [[GameCube and Wii Image Formats#IA8|IA8]]
| GIA8 || [[GameCube and Wii Image Formats#IA8|IA8]]
|-
|-
| GA4C || {{Unknown-left|Unknown}}
| GA4C || 1 [[GameCube and Wii Image Formats#CMPR|CMPR]] texture used as the main color and 1 [[GameCube and Wii Image Formats#I4|I4]] texture used as an alpha mask
|-
|-
| GA8C || {{Unknown-left|Unknown}}
| GA8C || 1 [[GameCube and Wii Image Formats#CMPR|CMPR]] texture used as the main color and 1 [[GameCube and Wii Image Formats#I8|I8]] texture used as an alpha mask
|-
|-
| GACC || 2 [[GameCube and Wii Image Formats#CMPR|CMPR]] textures, the first one is used as the main color texture and the second one is used as an alpha mask
| GACC || 2 [[GameCube and Wii Image Formats#CMPR|CMPR]] textures, the first one is used as the main color texture and the second one is used as an alpha mask
|-
|-
| GA45 || {{Unknown-left|Unknown}}
| GA45 || 1 [[GameCube and Wii Image Formats#RGB565|RGB565]] texture used as the main color and 1 [[GameCube and Wii Image Formats#I4|I4]] texture used as an alpha mask
|-
|-
| GA85 || {{Unknown-left|Unknown}}
| GA85 || 1 [[GameCube and Wii Image Formats#RGB565|RGB565]] texture used as the main color and 1 [[GameCube and Wii Image Formats#I8|I8]] texture used as an alpha mask
|-
|-
| GAC5 || {{Unknown-left|Unknown}}
| GAC5 || 1 [[GameCube and Wii Image Formats#RGB565|RGB565]] texture used as the main color and 1 [[GameCube and Wii Image Formats#CMPR|CMPR]] texture used as an alpha mask
|-
|-
| G565 || [[GameCube and Wii Image Formats#RGB565|RGB565]]
| G565 || [[GameCube and Wii Image Formats#RGB565|RGB565]]

Latest revision as of 17:14, 23 June 2025

Under Construction
This article is not finished. Help improve it by adding accurate information or correcting grammar and spelling.

AIG (Aqualead ImaGe) 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 ALIG in ASCII.
0x04 Byte Format type. 0 is used in AFT font files, 2 elsewhere?
0x05 Byte Unknown.
0x06 UInt16 Unknown.
0x08 Char[4] Image format.
0x0C Char[4] Palette format? Seen as "RGBA" in files with palettes, otherwise, 0x00000000.
If format = 2
0x10 UInt16 Width of image in pixels, always in little endian.
0x12 UInt16 Height of image in pixels, always in little endian.
0x14 Byte[4] Unknown.
0x18 Byte[4] Unknown.
0x1C UInt32 Image data offset, always in little endian.
0x20 UInt32 Texture data size in bytes.
0x24 Byte Magnification filter. 0 = Nearest, 1 = Linear
0x25 Byte Minification filter.
Value Type
0 Nearest
1 Linear
2 Nearest_Mipmap_Nearest
3 Linear_Mipmap_Nearest
4 Nearest_Mipmap_Linear
5 Linear_Mipmap_Linear
0x26 Byte Wrap S. 0 = Clamp, 1 = Repeat, 2 = Mirror
0x27 Byte Wrap T, same enum as above.
0x28 Float LOD bias.
0x2C Byte Edge LOD enable.
0x2D Byte Min LOD. The level of the first image stored.
0x2E Byte Max LOD. The level of the last image stored.

Image Formats

Format Description
8888 RGBA8888
5551 RGBA5551
4444 RGBA4444
PAL8 Unknown palette format
PAL4 Unknown palette format
PL4R Unknown palette format
PAL1 Unknown palette format
G5A3 RGB5A3
GC32 RGBA8
GCCP CMPR
GCI4 I4
GCI8 I8
GIA4 IA4
GIA8 IA8
GA4C 1 CMPR texture used as the main color and 1 I4 texture used as an alpha mask
GA8C 1 CMPR texture used as the main color and 1 I8 texture used as an alpha mask
GACC 2 CMPR textures, the first one is used as the main color texture and the second one is used as an alpha mask
GA45 1 RGB565 texture used as the main color and 1 I4 texture used as an alpha mask
GA85 1 RGB565 texture used as the main color and 1 I8 texture used as an alpha mask
GAC5 1 RGB565 texture used as the main color and 1 CMPR texture used as an alpha mask
G565 RGB565

Tools

The following tools can handle AIG files:

  • (none)
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