please help me with extract nltx file

Extraction and unpacking of game archives and compression, encryption, obfuscation, decoding of unknown files
imjinjia
Posts: 29
Joined: Wed Jul 18, 2018 11:10 pm

please help me with extract nltx file

Post by imjinjia »

sorry for my bad english.i am try to extract nltx file,but it don't work with nltx.bms,please help.
this is sample files.
nltx.rar
iltrof
Posts: 11
Joined: Fri Sep 07, 2018 1:37 pm

Re: please help me with extract nltx file

Post by iltrof »

If someone wants to pick this up, here's some info I have from extracting .nltx for a different game 1.5 years ago.
(viewtopic.php?f=7&t=8503 is that topic, but the old nltx.bms doesn't work here.)
Can't be bothered to research any further into this again, lol.

  • .nltx files contain single textures.
  • texture width is a 4-byte little endian number at offset 0x18
  • texture height is a 4-byte little endian number at offset 0x1C
  • texture data is contained in a YKCMP archive at offset 0x80
  • the result is raw pixel data, in one of the DXT formats, I assume
    • in the topic 1.5 years ago the .nltx files had raw RGBA data,
      but it's definitely different here
  • the pixel data is swizzled
    • no clue about the algorithm, OP should at least say which game this is from
imjinjia
Posts: 29
Joined: Wed Jul 18, 2018 11:10 pm

Re: please help me with extract nltx file

Post by imjinjia »

iltrof wrote:If someone wants to pick this up, here's some info I have from extracting .nltx for a different game 1.5 years ago.
(viewtopic.php?f=7&t=8503 is that topic, but the old nltx.bms doesn't work here.)
Can't be bothered to research any further into this again, lol.

  • .nltx files contain single textures.
  • texture width is a 4-byte little endian number at offset 0x18
  • texture height is a 4-byte little endian number at offset 0x1C
  • texture data is contained in a YKCMP archive at offset 0x80
  • the result is raw pixel data, in one of the DXT formats, I assume
    • in the topic 1.5 years ago the .nltx files had raw RGBA data,
      but it's definitely different here
  • the pixel data is swizzled
    • no clue about the algorithm, OP should at least say which game this is from


The game is Labyrinth of Refrain: Coven of Dusk from NS verstion.