Hacking (WIP) - BNTX Extractor

[AboodXD]

BNTX Extractor v0.4​

BNTX Extractor is a tool which extracts textures from the Binary NX Texture ('BNTX' / .bntx file extension) format used in Switch games, and saves them as DDS (or ASTC files).

Supported texture formats:

• R8_G8_B8_A8_UNORM
• R8_G8_B8_A8_SRGB
• R5_G6_B5_UNORM
• R8_UNORM
• R8_G8_UNORM
• BC1_UNORM
• BC1_SRGB
• BC2_UNORM
• BC2_SRGB
• BC3_UNORM
• BC3_SRGB
• BC4_UNORM
• BC4_SNORM
• BC5_UNORM
• BC5_SNORM
• BC6H_UF16
• BC6H_SF16
• BC7_UNORM
• BC7_SRGB
• ASTC4x4
• ASTC4x4 SRGB
  
• ASTC5x4
  
• ASTC5x4 SRGB
  
• ASTC5x5
  
• ASTC5x5 SRGB
  
• ASTC6x5
  
• ASTC6x5 SRGB
  
• ASTC6x6
  
• ASTC6x6 SRGB
  
• ASTC8x5
  
• ASTC8x5 SRGB
  
• ASTC8x6
  
• ASTC8x6 SRGB
  
• ASTC8x8
  
• ASTC8x8 SRGB
  
• ASTC10x5
  
• ASTC10x5 SRGB
  
• ASTC10x6
  
• ASTC10x6 SRGB
  
• ASTC10x8
  
• ASTC10x8 SRGB
  
• ASTC10x10
  
• ASTC10x10 SRGB
  
• ASTC12x10
  
• ASTC12x10 SRGB
  
• ASTC12x12
  
• ASTC12x12 SRGB

Known bugs:

• The swizzling isn't completely perfect yet.

Notes:

• A lot of tools don't support BC6 and BC7 DDS files, so I recommend using CompressonatorCLI to convert those DDS files to PNG files.
• For ASTC textures, you need to use the ASTC Evaluation Codec to convert those textures to TGA. Use the following command:
  

  astcenc -d input.astc output.tga

Here's a test:

Spoiler

Special thanks to:

• gdkchan: Original swizzling algorithm

Download.
Source code / Github.

 

[the_randomizer]

That was fast XD


But the image is broken

 

[AboodXD]

That was fast XD


But the image is broken

Fixed.

 

[AboodXD]

Just released v0.2!

Changelog:

• Fixed swizzling for BCn textures.
• Fixed a bug where the type of the texture is unknown.

Download.

 

[AboodXD]

Just released v0.3!

Changelog:

• Added support for BC6H and BC7 textures.

Here's a BC7 texture from MK8D:

Spoiler

Download.

 

[PewnyPL]

Whoa, wait, I knew we had cart dumps already, but we have decrypted ones as well to extract files from games?

 

[AboodXD]

Yes.

 

[Domineu]

How did you convert the BC7 to PNG? All of the converters I used failed to convert it.

 

[Noctosphere]

Its cool to see tools like this popping up there and there

 

[AboodXD]

How did you convert the BC7 to PNG? All of the converters I used failed to convert it.

Compressonator.

 

[Domineu]

Compressonator.

Thank you

 

[Domineu]

Will you also add support for Format: 11526 (.astc)? (The files usually have ^w in their name)

 

[AboodXD]

Maybe. Even though MK8 DX uses ASTC, I won't add it until I'm in dire need for it or it's highly requested.

 

[Domineu]

Splatoon 2 actually uses ASTC in many textures.

 

[AboodXD]

Just released v0.4!

Changelog:

• Improved the swizzling.
• Added support for ASTC formats.

For ASTC textures, you need to use the ASTC Evaluation Codec to convert those textures to TGA. Use the following command:

astcenc -d input.astc output.tga

Download.

 

[Yoshimaster96]

What about cubemaps?