ZIP
Jump to navigation
Jump to search
ZIP is an archive file format with optional lossless compression. It is used in 
Source for the pakfile lump in BSP files, as well as for bonus map BMZ files. The ZIP file format supports several different compression format, although Source only supports uncompressed and, in some engine branches, 
LZMA.
Warning:Only certain engine branches and BSP versions support compressed pakfiles; 
and 
do, but 
and 
do not!Additionally, the ZIP file format is used for the PK3 and PK4 files used by 
id Tech 3 and 
id Tech 4, respectively, which use the standard Deflate compression instead.
See also
- PAK, uncompressed archive format used by
id Tech 2 and 
GoldSrc - VPK, uncompressed archive format used by Source and
Source 2 - GCF, uncompressed archive format formerly used by
Steam, prior to the SteamPipe update.
External links
- ZIP (file format) on Wikipedia
- Source 2013 Multiplayer and Source 2013 Singleplayer versions of
zip_uncompressed.h, containing the structs used by Source to load ZIP files