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arma:file_formats:oprw [2009-07-17 09:31]
snakeman created oprw initial page. 		arma:file_formats:oprw [2011-06-30 15:36] (current)
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-Introduction+====== WRP File Format OPRWv17, 18, 20 ======
  
-For a general description of wrp files see 8WVR+For a general description of wrp files see 8WVR.
  
-Legend+ 
 +====== ​Legend ​======
  
 Little endian byte order, lsb first for numeric values, text is stored in Big endian byte order. Little endian byte order, lsb first for numeric values, text is stored in Big endian byte order.
Line 15: Line 16:
  
  
-XYPair+====== ​XYPair ​======
  
 <code cpp> <code cpp>
Line 24: Line 25:
 </​code>​ </​code>​
  
-XYZTriplet+ 
 +====== ​XYZTriplet ​======
  
 <code cpp> <code cpp>
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  ​float ​   x,y,z;  ​float ​   x,y,z;
 } }
 +Normally, this structure is normally associated with positional information.
 </​code>​ </​code>​
  
-Normally, this structure is normally associated with positional information. 
  
- +====== ​File Format ​======
-File Format+
  
 Texture and Terrain Grid Sizes are derived from the header. Texture and Terrain Grid Sizes are derived from the header.
Line 50: Line 51:
  ​WrpHeader ​    ​Header;​  ​WrpHeader ​    ​Header;​
  
- ​ushort ​       UnknownGrid1[TerrainGridSizeXY]; // a gridblock ​containing cellenv bits (16 bits per terrain cell). + ​ushort ​       UnknownGrid1[TextureCellSizeXY]; // a gridblock 
-                                                // Bits 0-2 are ground (0x0), coast (0x1), beach (0x2) and sea (0x3). Bit 4 indicates road/​airstrip. + ​byte ​         UnknownGrid2[TextureCellSizeXY]; // a gridblock // mostly the value 0x03 and probablay related to Config.cpp CfgEnvSounds class
- ​byte ​         UnknownGrid2[TerrainGridSizeXY]; // a gridblock // mostly the value 0x03 and probablay related to Config.cpp CfgEnvSounds class+
  
  ​ulong ​        ​nPeaks;​  ​ulong ​        ​nPeaks;​
  ​XYZTriplet ​   PeakPositions[nPeaks];​  ​XYZTriplet ​   PeakPositions[nPeaks];​
  
- ​ushort ​       TextureIndex[TextureGridSizeXY]; // a gridblock + ​ushort ​       TextureIndex[TextureCellSizeXY]; // a gridblock 
- ​ushort ​       PackedRandom[TextureGridSizeXY];​ // probably random values needed for calculating clutter models position+ ​ushort ​       PackedRandom[TextureGridSizeXY];​ //probably random values needed for calculating clutter models position
  if !Elite  if !Elite
   byte         ​PackedBytes1[TerrainGridSizeXY];​ //seems to be related to clutters or sat mask distance as it is   byte         ​PackedBytes1[TerrainGridSizeXY];​ //seems to be related to clutters or sat mask distance as it is
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  ​ClassedModel ​ Models[nClassedModels]; ​         //"​Land_Hangar\0"​ : "​ca\buildings\Hangar.p3d\0"​  ​ClassedModel ​ Models[nClassedModels]; ​         //"​Land_Hangar\0"​ : "​ca\buildings\Hangar.p3d\0"​
  
- ushort ​       ​UnknownGrid3[TerrainGridSizeXY]; // a gridblock+ byte          ​UnknownGrid3[TextureCellSizeXY]; // a gridblock
  
  ​ulong ​        ​SizeOfObjects; ​                  //in bytes  ​ulong ​        ​SizeOfObjects; ​                  //in bytes
  
- ushort ​       ​UnknownGrid4[TerrainGridSizeXY]; // a gridblock+ byte          ​UnknownGrid4[TextureCellSizeXY]; // a gridblock
  
  ​ulong ​        ​SizeOfMapInfo; ​                  //in bytes  ​ulong ​        ​SizeOfMapInfo; ​                  //in bytes
Line 99: Line 99:
  
  
-WrpHeader+====== ​WrpHeader ​======
  
 <code cpp> <code cpp>
Line 106: Line 106:
  ​char ​   Filetype; ​       // "​OPWR"​  ​char ​   Filetype; ​       // "​OPWR"​
  ​ulong ​  ​version; ​        // 0x12 = 18  ​ulong ​  ​version; ​        // 0x12 = 18
- ​XYPair ​ TextureGridSize;​ // 256 x 256 (SaraLite), 128 x 128 (Intro) + ​XYPair ​ TextureGridSize;​ // 256 x 256 eg 
- ​XYPair ​ TerrainGridSize;​ // 1024 x 1024 (SaraLite), 512 x 512 (Intro) + ​XYPair ​ TerrainGridSize;​ // ditto 
- ​float ​  ​CellSize; ​       // Texture grid cell size in meters ​(40m)+ ​float ​  ​CellSize; ​       // generally 50.0 meters
 } }
 </​code>​ </​code>​
  
-This is a traditional wrp header endemic to most wrp formats. The CellSize was introduced during ​Elite. The terrain grid cell size can be derived as follows: CellSize * TextureGridSizeX / TerrainGridSizeX,​ and is 10m for SaraLite and Intro.+This is a traditional wrp header endemic to most wrp formats. The CellSize was introduced during ​Elit
  
-GridBlock+ 
 +====== ​GridBlock ​======
  
 The result of decompressing any GridBlock is to produce an array the size of the Header'​s TextureGridSizeXY,​ at the TypeSize specified. Eg be it byte, or ushort. The result of decompressing any GridBlock is to produce an array the size of the Header'​s TextureGridSizeXY,​ at the TypeSize specified. Eg be it byte, or ushort.
Line 132: Line 133:
 GridBlock is currently in the '​discussion tab'. GridBlock is currently in the '​discussion tab'.
  
-Texture+ 
 +====== ​Texture ​======
  
 <code cpp> <code cpp>
Line 169: Line 171:
 The ushort Textureindices (once decomposed from a GridBlock) contain references to a '​texture'​. no index value of zero can exist. (The first texture of the list is always a dummy entry) The ushort Textureindices (once decomposed from a GridBlock) contain references to a '​texture'​. no index value of zero can exist. (The first texture of the list is always a dummy entry)
  
-ClassedModel+ 
 +====== ​ClassedModel ​======
  
 <code cpp> <code cpp>
-ClassedModel + ClassedModel { asciiz class_name; //"​Land_Hangar\0"​ asciiz model_path; //"​ca\buildings\Hangar.p3d"​ XYZTriplet Position; ulong unknown; }
-{ +
- asciiz class_name; //"​Land_Hangar\0"​ +
- asciiz model_path; //"​ca\buildings\Hangar.p3d"​ +
- XYZTriplet Position; +
- ulong unknown; +
-}+
 </​code>​ </​code>​
  
 This is a fairly repetitious list of often identically named class and model, used as an index from an as yet unknown grid table. This is a fairly repetitious list of often identically named class and model, used as an index from an as yet unknown grid table.
  
-RoadNet+====== ​RoadNet ​======
  
 <code cpp> <code cpp>
-RoadNet + RoadNet { ulong nRoadParts; // Zero or More... RoadPart RoadParts[nRoadParts];​ } TextureGridSizeXY];​
-{ +
- ulong nRoadParts; // Zero or More... +
- RoadPart RoadParts[nRoadParts];​ +
-} TextureGridSizeXY];​+
 </​code>​ </​code>​
  
Line 197: Line 190:
 RoadParts, while, ultimately being no more (or less) than just another P3D model, are contained separately to models generally, to better realize terrain streaming and for AI driving ability. RoadParts, while, ultimately being no more (or less) than just another P3D model, are contained separately to models generally, to better realize terrain streaming and for AI driving ability.
  
-RoadPart+====== ​RoadPart ​======
  
 <code cpp> <code cpp>
-RoadPart + RoadPart { ushort nRoadPositions;​ XYZTriplet RoadPositions[nRoadPositions];​ byte Flags[4]; asciiz Model; float matrix[12]; }
-{ +
- ushort nRoadPositions;​ +
- XYZTriplet RoadPositions[nRoadPositions];​ +
- byte Flags[4]; +
- asciiz Model; +
- float matrix[12]; +
-}+
 </​code>​ </​code>​
  
-Object Optional+ 
 +====== ​Object Optional ​======
  
 <code cpp> <code cpp>
-Object + Object { ulong ObjectID; ulong modelIndex; // into the [[#​Models|models path name list]] (1 based) float TransformMatrix[3][4];​ // standard directX transform matrix ulong 0x02; }
-{ +
- ulong ObjectID; +
- ulong modelIndex; // into the [[#​Models|models path name list]] (1 based) +
- float TransformMatrix[3][4];​ // standard directX transform matrix +
- ulong 0x02; +
-}+
 </​code>​ </​code>​
  
   * maxObjectID is somewhat irrelevant. It is indeed the id of the highest value ObjectID, but, these '​ID'​s,​ while unique are highly arbitrary in nature and alter on any change to the '​world'​ when editing in oxygen/​visitor. This ID can occur anywhere in the object list, and the id values before it are non-sequential. maxObjectID cannot be used as a nObject ID's eg.   * maxObjectID is somewhat irrelevant. It is indeed the id of the highest value ObjectID, but, these '​ID'​s,​ while unique are highly arbitrary in nature and alter on any change to the '​world'​ when editing in oxygen/​visitor. This ID can occur anywhere in the object list, and the id values before it are non-sequential. maxObjectID cannot be used as a nObject ID's eg.
- 
   * If SizeOfObjects above == 0 then there are no objects.   * If SizeOfObjects above == 0 then there are no objects.
  
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-MapInfo Optional+====== ​MapInfo Optional ​======
  
 <code cpp> <code cpp>
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 Mapinfo, when it exists, extends to end of file. The sizeof each entry, is determined by it's info type thus: Mapinfo, when it exists, extends to end of file. The sizeof each entry, is determined by it's info type thus:
  
-MapData+ 
 +====== ​MapData ​======
  
 <code cpp> <code cpp>
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 </​code>​ </​code>​
  
-MapType1+ 
 +====== ​MapType1 ​======
  
 <code cpp> <code cpp>
-MapType1 +MapType1 { ulong ObjectId float x, z }
-{ +
- ulong ObjectId +
- float x, z +
-}+
 </​code>​ </​code>​
  
-MapType2+ 
 +====== ​MapType2 ​======
  
 <code cpp> <code cpp>
-MapType2 +MapType2 { ulong ObjectId float Bounds[4][2];​ }
-{ +
- ulong ObjectId +
- float Bounds[4][2];​ +
-}+
 </​code>​ </​code>​
  
-MapType3+ 
 +====== ​MapType3 ​======
  
 <code cpp> <code cpp>
-MapType3 +MapType3 { ulong unknown[2]; float line[2][2];?​ }
-{ +
- ulong unknown[2]; +
- float line[2][2];?​ +
-}+
 </​code>​ </​code>​
  
-MapType4+ 
 +====== ​MapType4 ​======
  
 <code cpp> <code cpp>
-MapType4 +MapType4 { ulong ObjectId float Bounds[4][2];​ byte Color[4] //rgba }
-{ +
- ulong ObjectId +
- float Bounds[4][2];​ +
- byte Color[4] //rgba +
-}+
 </​code>​ </​code>​
  
-MapType5+ 
 +====== ​MapType5 ​======
  
 <code cpp> <code cpp>
-MapType5 +MapType5 { ulong ObjectId float line[2][2];?​ }
-{ +
- ulong ObjectId +
- float line[2][2];?​ +
-}+
 </​code>​ </​code>​
  
-Packed Data+ 
 +====== ​Packed Data ======
  
 All variables starting with "​Packed"​ are compressed with the common BIS algorithm that is also used in paa and OFP pbo files. All variables starting with "​Packed"​ are compressed with the common BIS algorithm that is also used in paa and OFP pbo files.
 +
 +
 +======= Bimpas =======
 +
 +bimpas files are associated with Xbox elite they were the precursor to ArmA's rvmat files
 +
 +in both cases they define a series of textures for p3d models (and wrps)
 +
 +The new, visitor 3 graphical editor tool refers to bimpas files as
 +
 +  * rvmat surface materials
 +  * bimpas transition materials
 +
 +rvmat files are a series of paas bimpas files are a series of rvmats
 +
 +
 +====== Rapification ======
 +
 +Ordinarily, these files, if binarised, are rapified in the normal xbox/arma manner
 +
 +some files, possibly in error, contain substituted space characters for zeroes.
 +
 +this is either an encryption, or, possibly a simple error
 +
 +
 +====== Example ======
 +
 +<code cpp>
 +class Pass0
 +{
 + material = "​ca\introofp\ps.rvmat";​
 + texture = "​ca\introofp\ps.paa";​
 + tlAlpha = 1;
 + trAlpha = 1;
 + blAlpha = 1;
 + brAlpha = 1;
 +};
 +
 +class Pass0
 +{
 + material = "​LandText\az.rvmat";​
 + texture = "​LandText\az.paa";​
 + trAlpha = 1;
 +};
 +
 +class Pass1
 +{
 + material = "​LandText\ba.rvmat";​
 + texture = "​LandText\ba.paa";​
 + blAlpha = 1;
 +};
 +
 +class Pass2
 +{
 + material = "​LandText\_N.rvmat";​
 + texture = "​LandText\_N.paa";​
 + brAlpha = 1;
 +};
 +
 +class Pass3
 +{
 + material = "​LandText\Dl.rvmat";​
 + texture = "​LandText\Dl.paa";​
 + tlAlpha = 1;
 +};
 +</​code>​
arma/file_formats/oprw.1247823099.txt.gz · Last modified: 2009-07-17 09:31 (external edit)

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