WPL
WPL is the format of the map-related files in GTA IV similar to Binary IPLs introduced with GTA SA. It can be edited using WPL Manager.
Contents
File Format
Binary Headers
Each world placement file starts with one single header followed by the object placement information. The structure for the header is very simple:
Size = 68 bytes 4b - UINT32 - (Version) - value always "3" 4b - UINT32 - (?????? 0) - inst 4b - UINT32 - (?????? 1) - 0 (unused) 4b - UINT32 - (?????? 2) - grge 4b - UINT32 - (?????? 3) - cars (only used in *_stream*.wpl) 4b - UINT32 - (?????? 4) - tcyc 4b - UINT32 - (?????? 5) - 0 (unused) 4b - UINT32 - (?????? 6) - 0 (unused) 4b - UINT32 - (?????? 7) - 0 (unused) 4b - UINT32 - (?????? 8) - mlop (only used in *_strbig*.wpl) 4b - UINT32 - (?????? 9) - lodm (only used in lodcull_*.wpl) 4b - UINT32 - (?????? 10) - slow 4b - UINT32 - (?????? 11) - 0 (unused) 4b - UINT32 - (?????? 12) - 0 (unused) 4b - UINT32 - (?????? 13) - 0 (unused) 4b - UINT32 - (?????? 14) - 0 (unused) 4b - UINT32 - (?????? 15) - blok (section ignore by the game)
The placement information corresponds to the previous instance section of the .ipl files. They have a binary structure like the binary ipl files introduced with San Andreas:
Section 0 - INST
Size = 48 bytes 4b - FLOAT - Position X 4b - FLOAT - Position Y 4b - FLOAT - Position Z 4b - FLOAT - Rotation X 4b - FLOAT - Rotation Y 4b - FLOAT - Rotation Z 4b - FLOAT - Rotation W 4b - UINT32 - Model name hash 4b - UINT32 - Flags 4b - INT32 - LOD Index 4b - UINT32 - Unknown 4b - FLOAT - Unknown
Rotation information as Quarternion
Section 2 - GRGE(Garage)
Size = 48 bytes 4b - float - X1 4b - float - Y1 4b - float - Z1 4b - float - frontX 4b - float - frontY 4b - float - X2 4b - float - Y2 4b - float - Z2 4b - UINT32 - DoorType 4b - UINT32 - GarageType 8b - char - GarageName
X1, Y1, Z1 = lower left vertex position
FrontX, FrontY = lower right front vertex position
X2, Y2, Z2 = upper left rear vertex position
Section 3 - CARS
only used in the (*_stream*.wpl) files
Size = 56 bytes 4b - float - X 4b - float - Y 4b - float - Z 4b - float - Unknown 4b - float - Rotation 4b - float - Rotation 4b - UINT32 - Model name hash 4b - int32 - Car color 1 4b - int32 - Car color 2 4b - int32 - Car color 3 4b - int32 - Specular color 4b - UINT32 - Flags 4b - int32 - Alarm 4b - int32 - Unknown
Section 4 - TCYC
Size = 56 bytes 4b - float - X1 4b - float - Y1 4b - float - Z1 4b - float - X2 4b - float - Y2 4b - float - Z2 4b - UINT32 - Unknown1 4b - UINT32 - Unknown2 4b - UINT32 - Unknown3 4b - UINT32 - Unknown4 4b - UINT32 - Hash
X1, Y1, Z1 = lower left vertex position
X2, Y2, Z2 = upper left rear vertex position
Hash = Box hash name
Section 8 - MLOP
Used only in (*_strbig*.wpl) files.
size = 64 bytes 24b - char - modelname 4b - UINT32 - flags 4b - UINT32 - interior index // interior inst index 4b - UINT32 - Unknown 4b - float - Pos X 4b - float - Pos Y 4b - float - Pos Z 4b - float - Rot X 4b - float - Rot Y 4b - float - Rot Z 4b - float - Rot W
modelname = Model name
Pos X, Pos Y, Pos Z = Object coordinates
Rot X, Rot Y, Rot Z, Rot W = Object Rotate (In Quarternion view)
Section 9 - LODM
only used in (lodcull_x.wpl) files, usually located in 'Rockstar Games\Grand Theft Auto IV\pc\data\maps\generic' folder.
Size = 388 bytes 4b - FLOAT - Position X1 4b - FLOAT - Position Y1 4b - FLOAT - Position Z1 4b - FLOAT - Position X2 4b - FLOAT - Position Y2 4b - FLOAT - Position Z2 4b - UINT32 - unknown UINT32 4b - UINT32 - Hash 1 4b - UINT32 - Hash 2 4b - UINT32 - Hash 3 4b - UINT32 - Hash 4 4b - UINT32 - Hash 5 4b - UINT32 - Hash 6 4b - UINT32 - Hash 7 4b - UINT32 - Hash 8 4b - UINT32 - Hash 9 4b - UINT32 - Hash 10 32b - String - Model name 1 32b - String - Model name 2 32b - String - Model name 3 32b - String - Model name 4 32b - String - Model name 5 32b - String - Model name 6 32b - String - Model name 7 32b - String - Model name 8 32b - String - Model name 9 32b - String - Model name 10
X1, Y1, Z1 = lower left vertex position
X2, Y2, Z2 = upper right vertex position
Section 10 - SLOW
Size = 24 bytes 4b - float - X1 4b - float - Y1 4b - float - Z1 4b - float - X2 4b - float - Y2 4b - float - Z2
X1, Y1, Z1 = lower left vertex position
X2, Y2, Z2 = upper right vertex position
Section 15 - BLOK
Section is ignored by the game
Size = 132 bytes 4b - UINT32 - Unknown 92b - Char - Unknown string (X1,Y1,X2,Y2,X3,Y3,X4,Y4) 4b - UINT32 - Unknown 4b - FLOAT - X1 4b - FLOAT - Y1 4b - FLOAT - X1 4b - FLOAT - Y2 4b - FLOAT - X3 4b - FLOAT - Y3 4b - FLOAT - X4 4b - FLOAT - Y4
XPL
In the XBox 360's version of GTA 4 same files have the extension .xpl. The XPL and WPL formats are same, but due to the fact XPL files are used on the Xenon platform its data is stored in the big-endian order.
Tools
GTAForums: GTA IV Placement Tool – by |Dageron|- GTAGarage: IV Placement Editor – by Chipsman
- WPL Manager – by Yoann (UZI-I)
- OpenIV – contains a built-in WPL viewer
See also
- Binary IPL – binary item placecement file format from GTA San Andreas.
- IPL – plain text item placement format used for all games of the GTA III triology and GTA IV.
External Link
- GTAForums: WPL file format specification
 Grand Theft Auto IV | |
|---|---|
| File Formats | .dat • .gxt • .ide • .img • .ipl • .nod • .sco • .rpf • .rrr • .wad • .wbd/.wbn • .wdd • .wdr • .wft • .whm • .wpl • .wtd |
| Documentation | Audio • Bink Video • Cryptography • Cutscenes • GXT Text • Image listing • Keycodes • Map Listing • Native functions • Paths • Radar Blips • Radio Stations • Saves • Scenarios • VTable • Weapons |
| Tools | ASI Loader • ENBSeries • G-Texture • GIMS IV • Ingame WPL Editor • IV Needle • OpenIV • SparkIV • XLiveLess • WPL Manager • X Mod Installer Alice • C++ Script Hook • .NET Script Hook • Scocl |
| Tutorials | Importing Textures with OpenIV • Importing Textures with SparkIV |
| Modifications | GTA Connected • Gostown IV • Four Multiplayer • IV Multiplayer • CitizenMP:IV Reloaded |
| Useful links | Community portal • Discussion forums • Modding forums • Mods on GTAGarage.com |
