BFG (File Format)
From Wexos's Wiki
(Redirected from BFG)
BFG (Binary FoG) files are one of the multiple post-effect controllers Mario Kart Wii provides. It controls fog used in tracks, and they appear in the "./posteffect" folder inside U8 files.
File Format
The file byte order is always big endian. The structure of the file is based in four fog entries, where each entry is 0x1C bytes long.
Offset | Type | Description |
---|---|---|
0x00 | Int32 | Fog type:
|
0x04 | Float | StartZ. The Z-value where fog generation begins inside the view space. |
0x08 | Float | EndZ. The Z-value at which fog density is maximum inside the view space. |
0x0C | Byte[4] | Fog color, stored in RGBX format (alpha is ignored). |
0x10 | UInt16 | Fog range correction. 0 = Disabled, 1 = Enabled. |
0x12 | UInt16 | Maybe center to which the range correction is applied? |
0x14 | Float | Affects the transition speed when swapping fog entries. 1.0 is instant; lower values create longer fades. Whether it affects swapping to this entry, from this entry, or both is unknown. |
0x18 | UInt16 | Unknown. 0 in most Nintendo tracks, 5544 in N64 DK's Jungle Parkway. |
0x1A | UInt16 | Unknown. |
0x1C | End of fog entry |
Tools
The following tools can handle BFG files:
- FogConv, by Atlas
- Post-Effect Editor, by Wexos