ofp:file_formats:4wvr
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ofp:file_formats:4wvr [2007-07-10 09:52] 127.0.0.1 external edit |
ofp:file_formats:4wvr [2011-06-30 15:30] |
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| - | ====== WRP - 4WVR ====== | ||
| - | Flashpoint wrp files use two different file formats to contain the data. This document contains information on 4WVR format as used by WrpTool and Visitor 2. | ||
| - | |||
| - | This document does not discuss the alternate format, OPRW. Both file formats can be used directly by the engine, whether the file exists independently in ~\worlds, or, packed inside a pbo (addon). | ||
| - | |||
| - | See General Wrp format for further info. | ||
| - | |||
| - | "Binarize" tool by BIStudio will convert 4WVR to OPRW if desired. | ||
| - | |||
| - | (some problems exist with 2 versions of binarize) | ||
| - | |||
| - | **Conventions** | ||
| - | |||
| - | <code> | ||
| - | Intel byte order, lsb first | ||
| - | byte = 1 char = 8 bits | ||
| - | ulong = unsigned long, 4 bytes | ||
| - | ushort= unsigned short 2 bytes | ||
| - | asciiz= variable length zero terminated string. | ||
| - | float= 4byte (single precision) | ||
| - | </code> | ||
| - | |||
| - | ====== Structure ====== | ||
| - | |||
| - | <code> | ||
| - | struct | ||
| - | { | ||
| - | byte Signature[4]; //"4WVR" | ||
| - | ulong Xsize; //(=256) cell dimension | ||
| - | ulong Ysize; //(=256) cell dimension | ||
| - | short Elevations[Ysize][Xsize]; // eg 2*256*256 = 131072 bytes See Note | ||
| - | short TextureIndex[Ysize][Xsize]; // eg 2*256*256 = 131072 bytes | ||
| - | //Each 'index' refers to a filename below. Max value = 511 | ||
| - | Asciiz TextureFilenames[512][32]; | ||
| - | /* | ||
| - | A max of 512 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. | ||
| - | example: data\pi.paa | ||
| - | */ | ||
| - | |||
| - | struct model | ||
| - | { | ||
| - | float TransformMatrix[12]; //see below | ||
| - | long 3DobjectIndex; //the unique ouid for this model | ||
| - | asciiz Filename[76]; | ||
| - | //each string is held within a 76 byte record. Therefore filename is 75 chars max. | ||
| - | }[variable]; | ||
| - | }; | ||
| - | </code> | ||
| - | |||
| - | ====== Note1 ====== | ||
| - | |||
| - | TransformMatrix[4][3]; | ||
| - | |||
| - | This is the transform matrix used directly by Microsoft DirectX engines. | ||
| - | |||
| - | In fact, the 'correct' matrix is actually 4 x 4, but the last column always represents 0,0,0,1 thus | ||
| - | |||
| - | <code> | ||
| - | M11,M12 M13 (0.0) | ||
| - | M21,M22,M23 (0.0) | ||
| - | M31,M32,M33 (0.0) | ||
| - | M41,M42,M43 (1.0) | ||
| - | </code> | ||
| - | |||
| - | and so is never stored. This identical matrix is used for WRP files (both formats) and RTM files. The last row (M41...) happens to be the position of the object X Z Y co-ordinates, and is often referred to separately. | ||
| - | |||
| - | For further information visit [[http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directx9_c/directx/graphics/programmingguide/fixedfunction/transforms/transforms.asp|here]]. | ||
| - | |||
| - | ====== Note2 ====== | ||
| - | |||
| - | The number of models varies from none, to end of file. Each model is 128 bytes in length. | ||
ofp/file_formats/4wvr.txt ยท Last modified: 2011-06-30 15:30 (external edit)
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