[[WORLD.WDB]] or '''World DataBase''' is an asset file for LEGO Island. It is one of the few files [[Local Files|copied to the hard drive]] during installation, as opposed to the majority which are [[Interleaf File|streamed from CD-ROM]].
== Overview ==
WORLD.WDB is the only '''.WDB''' file in LEGO Island, unlike the much more common [[Interleaf File]] format. As such, it is generally even less well understood. It does not follow the chunking/streaming conventions of the Interleaf format as it is always read from hard drive.
== Contents ==
It is known that WORLD.WDB contains most of the 3D models used by the game and many of the textures (but notably excluding the [[phonemes]], which are in Interleaf files). There have been successful attempts at ripping and even swapping assets from WORLD.WDB, but no known attempts at reconstruction.
The file contains a list of worlds, where each world references a number of models and parts. After the models exists a list of textures and a single part. Each model and part can also have a list of textures themselves. The textures use a palette and store an uncompressed stream of bytes referencing the palette. Model references also contain a location, direction and up vector placing them in the world.
A model contains an ROI (Realtime object instance), which can contain other ROIs, allowing them to be animated separately as the animation modify a ROI. A part contains a list of ROIs directly although those cannot contain another ROI.
== External Links ==
* [https://github.com/floriandotorg/isle-documentation/tree/master/imhex-patterns ImHex Patterns] to parse several LEGO Island related files with the hex editor [https://imhex.werwolv.net/ ImHex]
* [http://fileformats.archiveteam.org/wiki/Lego_Island_World_Database Incomplete reverse-engineered WDB documentation]
* [https://github.com/LiamBrandt/WDBRipper WDBRipper], unmaintained but decently functional tool for extracting assets from WORLD.WDB