Difference between revisions of "BLMAP (File Format)"
Jump to navigation
Jump to search
m (→Gradients) |
|||
| Line 76: | Line 76: | ||
| 0x05 || x<sup>6</sup> || Exponential gradient between x=32 and x=64 | | 0x05 || x<sup>6</sup> || Exponential gradient between x=32 and x=64 | ||
|- | |- | ||
| − | | 0x06 || x<sup> | + | | 0x06 || x<sup>8</sup> || Exponential gradient between x=32 and x=64 |
|- | |- | ||
| 0x07 || x || Linear gradient between x=4 and x=45 | | 0x07 || x || Linear gradient between x=4 and x=45 | ||
Revision as of 12:36, 5 December 2022
The BLMAP (Binary Light MAP) filetype controls lighting mapping. It is always seen in the posteffect folder inside an U8. This file is not required for a track to load, as there is a default.blmap file inside Common.szs. The exact purpose of BLMAP files is currently unknown.
File Format
File Header
The following table describes the LIGHT header.
| Offset | Type | Description |
|---|---|---|
| 0x00 | String | File magic. Always LMAP in ASCII. |
| 0x04 | UInt32 | File size. Always 0x298 in MKW. |
| 0x08 | UInt8 | Version. Always 00 in MKW. |
| 0x0C | UInt32 | Unknown. Always 00 00 00 00. |
| 0x10 | Uint16 | Number of LTEXs. Always 0x02 in MKW. |
| 0x12 | Byte[14] | Padding. |
Light Texture data (LTEX)
The first object starts at 0x20. These addresses are relative to the start of the object.
| Offset | Type | Description | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0x00 | String | Section magic. Always LTEX in ASCII. | ||||||||||||
| 0x04 | UInt32 | Section size. Always 0x13C. | ||||||||||||
| 0x08 | Uint8 | Version. Always 00 in MKW. | ||||||||||||
| 0x09 | Byte[3] | Padding | ||||||||||||
| 0x0C | Uint32 | Unknown. Always 00 00 00 00. | ||||||||||||
| 0x10 | Uint16 | Number of subobjects (N). Always 0x20. | ||||||||||||
| 0x14 | Char[32] | Name of the texture this entry must be linked to | ||||||||||||
| 0x34 | Uint8 | Type | ||||||||||||
| 0x35 | Byte[3] | Padding | ||||||||||||
| 0x38 | Uint32 | Length of the following list (N * 8) | ||||||||||||
| 0x3C | Sub[N] | A list of entries with the following structure:
|
Gradients
Each LTEX entry links to a 64x4 grayscale black to white gradient texture. The table below lists the different kind of gradients.
| id | Type | Description |
|---|---|---|
| 0x00 | x | Linear gradient between x=32 and x=64 |
| 0x01 | x | Linear gradient between x=0 and x=64 |
| 0x02 | x | Linear gradient between x=16 and x=64 |
| 0x03 | x2 | Exponential gradient between x=32 and x=64 |
| 0x04 | x4 | Exponential gradient between x=32 and x=64 |
| 0x05 | x6 | Exponential gradient between x=32 and x=64 |
| 0x06 | x8 | Exponential gradient between x=32 and x=64 |
| 0x07 | x | Linear gradient between x=4 and x=45 |
| 0x08 | -x2 | Inverse exponential gradient between x=10 and x=42 |
| 0x09 | -x2 | Inverse exponential gradient between x=13 and x=45 |