ZAP
A container of multiple image files. These are used for transparency layers in static textures. One major example is nodecube textures, where transparency lets the skybox through.
It is unknown what "ZAP" is supposed to stand for, if anything.
ZAP files are little-endian, and have the .zap file extension.
ZAP file structure
| Name | Type | Description |
|---|---|---|
| hdrSize | uint32 |
Header size. Never observed to be anything other than 0x20. |
| nImages | uint32 |
Number of images. Never observed to be anything other than 0x2. Then again, Revelation is hardcoded to assume all ZAP files contain exactly two images. |
| formats | uint32[nImages] |
Formats of the respective images, as known by the LEADTOOLS SDK, though only three are supported (FILE_JPEG (0xA), FILE_TIF_JPEG (0xB) and FILE_PNG (0x4B)). |
| sizes | uint32[nImages] |
Sizes of the respective image's data. |
| w | uint32 |
Shared width. |
| h | uint32 |
Shared height. |
| data | uint8[sizes[i]][nImages] |
Data of the respective image. |