Wrp File Format - 1WVR: Difference between revisions
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==General== | == General == | ||
WVR type 1 was released as a cwc demo island | WVR type 1 was released as a cwc demo island | ||
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See [[BIS_File_Formats#Island_File_Formats|Island File Formats]] for further info. | See [[BIS_File_Formats#Island_File_Formats|Island File Formats]] for further info. | ||
===Conventions=== | === Conventions === | ||
see [[Generic FileFormat Data Types]] | see [[Generic FileFormat Data Types]] | ||
==Structure== | == Structure == | ||
WVR1 | WVR1 | ||
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Net Nets[...]; | Net Nets[...]; | ||
} | } | ||
===WVR1Header=== | === WVR1Header === | ||
WVR1Header // same as WVR4 except for the signature of course | WVR1Header // same as WVR4 except for the signature of course | ||
{ | { | ||
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ulong Ysize; //(=128) cell dimension | ulong Ysize; //(=128) cell dimension | ||
} | } | ||
===Texture=== | === Texture === | ||
Texture | Texture | ||
{ | { | ||
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====Elevations==== | ==== Elevations ==== | ||
Elevations are expressed as an integral of the gridsize. | Elevations are expressed as an integral of the gridsize. | ||
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see [[Wrp File Format - 4WVR]] | see [[Wrp File Format - 4WVR]] | ||
====TextureIndex==== | ==== TextureIndex ==== | ||
Each cell on the map references an texture file (pac/paa) and an elevation for that text at that cell position. | Each cell on the map references an texture file (pac/paa) and an elevation for that text at that cell position. | ||
Since there could be myriads of 'sea' texture (eg), rather than have each cell list it is texture, it references a texture list via an index. In this way, THE texture which is common to many cells (at sometimes differing elevations) is only stored once. | Since there could be myriads of 'sea' texture (eg), rather than have each cell list it is texture, it references a texture list via an index. In this way, THE texture which is common to many cells (at sometimes differing elevations) is only stored once. | ||
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A max of 256 texture files can be listed. Each is held as an asciiz string inside a fixed 32 byte record. Eg max length of filename is 31 characters. | A max of 256 texture files can be listed. Each is held as an asciiz string inside a fixed 32 byte record. Eg max length of filename is 31 characters. | ||
===Model=== | === Model === | ||
Model// 64 byte structure | Model// 64 byte structure | ||
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*Cartesian rotation is clockwise. Polar rottion is counter clock. Therefore, Polar (wrp) degrees = -Cartesian degrees. | *Cartesian rotation is clockwise. Polar rottion is counter clock. Therefore, Polar (wrp) degrees = -Cartesian degrees. | ||
===Net=== | === Net === | ||
Net//64 byte structure | Net//64 byte structure | ||
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====NetHeader==== | ==== NetHeader ==== | ||
NetHeader | NetHeader | ||
{ | { | ||
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Endof Nets also marks end of file. | Endof Nets also marks end of file. | ||
====Subnet==== | ==== Subnet ==== | ||
SubNet | SubNet | ||
{ | { | ||
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*Stepping appears to incrementally increase around 5.0 to each subsequent subnet | *Stepping appears to incrementally increase around 5.0 to each subsequent subnet | ||
==FilePaths== | == FilePaths == | ||
Despite the impression given (lack of a leading \) All filenames (pac/paa and p3d files) are HARD WIRED to the (virtual) pboRoot\ directory. | Despite the impression given (lack of a leading \) All filenames (pac/paa and p3d files) are HARD WIRED to the (virtual) pboRoot\ directory. | ||
Latest revision as of 14:57, 1 February 2021
This page contains unofficial information.
Some usage of this information may constitute a violation of the rights of Bohemia Interactive and is in no way endorsed or recommended by Bohemia Interactive.Bohemia Interactive is not willing to tolerate use of such tools if it contravenes any general licenses granted to end users of this community wiki or BI products.
General
WVR type 1 was released as a cwc demo island
For a general description WVR-WRP file construct, see Wrp File Format - 4WVR
See Island File Formats for further info.
Conventions
see Generic FileFormat Data Types
Structure
WVR1
{
WVR1Header Header;
Texture Textures[...];
Model Models[...];
Net Nets[...];
}
WVR1Header
WVR1Header // same as WVR4 except for the signature of course
{
char Signature[4]; //"1WVR"
ulong Xsize; //(=128) cell dimension (wvr4 is 256)
ulong Ysize; //(=128) cell dimension
}
Texture
Texture
{
ushort Elevations [Ysize][Xsize]; // in centimetres. see 4WVR documentation
ushort TextureIndex[Ysize][Xsize]; //Each 'index' refers to a filename below. Range 0..255 4WVR is 1..511
Asciiz TextureFilenames[256][32]; //"LandText\\mo.pac\0LandText.pi.pac.........."
}
Unlike 4WVR the table is limited to 256 (not 512) entries. Unlike 4WVR the names can be
- replicated
- scattered anywhere
Unlike 4WVR there is no dummy, 0 index. the first entry is used. There are 'holes' in the table (eg no strings) where that paa file was removed
Elevations
Elevations are expressed as an integral of the gridsize.
Since the gridsize for Operation Flashpoint is a fixed 50 meters, to convert the value into meters:
RealHeight = Elevations[x][y] * 0.05;
TextureIndex
Each cell on the map references an texture file (pac/paa) and an elevation for that text at that cell position. Since there could be myriads of 'sea' texture (eg), rather than have each cell list it is texture, it references a texture list via an index. In this way, THE texture which is common to many cells (at sometimes differing elevations) is only stored once.
A max of 256 texture files can be listed. Each is held as an asciiz string inside a fixed 32 byte record. Eg max length of filename is 31 characters.
Model
Model// 64 byte structure
{
XYZTriplet XYZTriplet; // in gridsize scale. eg *50.0 meters
float heading; // in Cartesian degrees NOT polar radians
char P3dModelName[48]; // "Data3d\Smrk.p3d (WVR4 is 76)
}
- Unlike wvr4, wvr1 has no object id
- Unlike wvr4, only the xyz position, and an orientation is supplied. In wvr4, these were replaced by the standard Microsoft 12 float array
- The XYZ triplet is specified in gridsize. to get real meters, multiply by 50.
- The Y component (the height) is a relative measurement. eg an offset from the calculated position of the model on the land surface.
- in all other formats this value is absolute asl. not, relative.
- Cartesian rotation is clockwise. Polar rottion is counter clock. Therefore, Polar (wrp) degrees = -Cartesian degrees.
Net
Net//64 byte structure
{
NetHeader NetHeader;
Subnet SubNets[...];
}
NetHeader
NetHeader
{
Asciiz NetName[24]; //"LandText\Silnice.pac" null termed
ulong Always; //0x00cd9100 or 0x00d4c600
ulong Always; //0x00bfd400
ulong Always; //0x00000047
ulong Always; //0x00000000
ulong Always; //0x0069fbb0;
ulong Type; //0,1 or 2
XYZTriplet XYZTriplet; //[0.152,0.15,0.1] typical
float Scale; //3.5, 4.5 or 5.5
}
The last NetHeader (eg, last net) contains the NetName "EndOfNets". There are NO subnets.
Endof Nets also marks end of file.
Subnet
SubNet
{
float X,Y; //* gridsize of 50
if (X || Y)
{
XYZTriplet Triplet; //very similar content to header triplet
float Stepping;
ulong Always; //0x0046931A
ulong Always; //0x00980778 or 0x733760
}
}
A block of subnets continue for each Netheader until X==Y==0
- Stepping appears to incrementally increase around 5.0 to each subsequent subnet
FilePaths
Despite the impression given (lack of a leading \) All filenames (pac/paa and p3d files) are HARD WIRED to the (virtual) pboRoot\ directory.
From the very beginning of ofp, this lack of relative addressing has persisted to be the total pain that it is: Making the transfer of models into other addons a frustrating nightmare.