Difference between revisions of "TXD"

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(Texture Native Data)
(redirected; content included in Texture Native Struct)
 
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Copyed from Spooky, just to make a start..:
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#REDIRECT [[Texture archive]]
Please note that this is the Vice City format, although it doesnt differ that much..
 
[http://www.gtaforums.com/index.php?showtopic=112115&st=20 Copied from here]
 
 
 
 
 
== The TXD Format ==
 
a TXD file is a Renderware texture dictionary.
 
 
 
TXD files have the same basic format as DFF files and consist of sections with different purpose.
 
See [http://www.chronetal.co.uk/gta/index.php?page=dff KCows dff documentation] for more infos.
 
Every section has a 12 byte section header, containing type, size and ver id.
 
Here are some version id's along with the renderware api version they are associated with and the gta game they're found in:
 
 
 
  File Tag  API version
 
  0x00000302 0x30200
 
  0x00000310 0x31000
 
  0x0800FFFF 0x32000 for GTA3,
 
  0x0C02FFFF 0x33002 for VC PS2 and
 
  0x1003FFFF 0x34003 for VC PC
 
  0x1400FFFF 0x35000
 
  0x1803FFFF 0x36003 for SA
 
  0x1c020001 0x37002
 
 
 
 
 
The (usual) txd format looks like this:
 
 
 
  (22) Texture Dictionary
 
  |
 
  +--> (1) Data ( Specific to the Texture Dictionary )
 
  |
 
  +-+ (21) Texture Native No. 1
 
  | |-+ (1) Data (all the texture information and the image itself)
 
  | |
 
  | +-- (3) Extension (always empty - size=0) --> MISSING
 
  |
 
  +-+ (21) Texture Native No. 2
 
  | |-- ... (same as above)
 
  |
 
  +-+ (21) Texture Native No. 3
 
  |-- ...
 
 
 
(The number in brackets stands for the section type - dword)
 
 
 
The break down for each section is as follows
 
 
 
===Texture Dictionary Data===
 
4 bytes nbrTextures
 
 
 
This section only contains the number of textures in this texture dictionary.
 
 
 
===Texture Native Data===
 
Size      Name
 
4 bytes  Unknown (usually 8 or 9)
 
2 byte    Texture Filter
 
1 byte    Texture Wrap V
 
1 byte    Texture Wrap U
 
32 bytes  Name
 
32 bytes  Alpha Name
 
4 bytes  Raster Format
 
4 bytes  Alpha/FOURCC
 
2 bytes  Width
 
2 bytes  Height
 
1 byte    BPP
 
1 byte    MipMaps
 
1 byte    Raster Type
 
1 byte    DXT
 
[1024 bytes of Palette Data if Raster Format has FORMAT_EXT_PAL8 set]
 
4 bytes  Raster Size
 
followed by "Raster Size" of bytes for the actual Raster image.
 
[ if Raster Format has FORMAT_EXT_MIPMAP and MipMaps > 0]
 
There are "MipMaps" number of MapMips data each containing
 
 
4 bytes Raster Size
 
followed by Raster Size of mipmap data
 
- it is possible for some mipmaps to be too small and
 
  therefore have 0 length.
 
 
 
These are the Raster Formats and extensions:
 
 
FORMAT_DEFAULT        0x0000
 
FORMAT_1555            0x0100
 
FORMAT_565            0x0200
 
FORMAT_4444            0x0300
 
FORMAT_8888            0x0500
 
FORMAT_888            0x0600
 
FORMAT_MASK            0x0F00
 
FORMAT_EXT_AUTO_MIPMAP 0x1000
 
FORMAT_EXT_PAL8        0x2000
 
FORMAT_EXT_MIPMAP      0x8000
 
FORMAT_EXT_MASK        0xF000
 
 
 
These are the Texture Filters:
 
 
 
FILTER_NONE                0x0
 
FILTER_NEAREST            0x1
 
FILTER_LINEAR              0x2
 
FILTER_MIP_NEAREST        0x3
 
FILTER_MIP_LINEAR          0x4
 
FILTER_LINEAR_MIP_NEAREST  0x5
 
FILTER_LINEAR_MIP_LINEAR  0x6
 
 
 
These are the Texture Wrap:
 
 
 
WRAP_NONE    0x0
 
WRAP_WRAP    0x1
 
WRAP_MIRROR  0x2
 
WRAP_CLAMP    0x3
 

Latest revision as of 22:34, 10 December 2006

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