GXTConvert

GXTConvert is a somewhat rudimentary converter for GXT-format textures used by games for the PlayStation Vita. It is written in C# and based on the .NET Framework.

Maintenance Note

GXTConvert is currently only receiving limited maintenance. Please see the Scarlet project for a more generic set of libraries and a sample converter application to convert various game or console image formats to PNG, including GXT.

Requirements

• General
  • .NET Framework 4
• Compilation
  • Visual Studio Community 2013 (or higher)
• Usage
  • Compatible files to convert

Usage

Syntax: GXTConvert.exe <inputs ...> [options]

• <inputs ...>: Any number of files or directories to be converted, separated by spaces
• [options]:
  • --output | -o: Specify output directory
  • --keep | -k: Do not overwrite existing output files

Example: GXTConvert.exe "C:\Temp\GXT\files\" "C:\Temp\GXT\testfile.gxt" --output "C:\Temp\GXT\output\"

Games

Games known to use the GXT format include:

• Danganronpa: Trigger Happy Havoc (*.gxt) ⁽¹⁾
• Danganronpa 2: Goodbye Despair (*.gxt) ⁽¹⁾
• Danganronpa Another Episode: Ultra Despair Girls (*.btx) ⁽¹⁾
• Digimon Story: Cyber Sleuth (*.pvr)
• Dragon's Crown ⁽²⁾
• Gravity Rush (*.gxt)
• IA/VT Colorful (.gxt; .mxt) ⁽³⁾
• Muramasa Rebirth ⁽²⁾
• Sword Art Online: Hollow Fragment (no extension) ⁽⁴⁾
• Senran Kagura: Shinovi Versus (*.gxt)
• Soul Sacrifice Delta (*.gxt) ⁽⁵⁾
• Toro's Friend Network (*.gxt)
• Steins;Gate (*.gxt)

⁽¹⁾ Require dr_dec decompression script by BlackDragonHunt for most files; some .btx files are not GXT
⁽²⁾ Packed in *.ftx containers
⁽³⁾ Packed in archive.pk container; requires QuickBMS script by chrrox to unpack
⁽⁴⁾ Packed in OFS3 containers; requires QuickBMS script to unpack
⁽⁵⁾ Packed in containers; requires QuickBMS script by chrrox to unpack

Acknowledgements

• PVRTC texture decompression code ported from PowerVR Graphics Native SDK, Copyright (c) Imagination Technologies Ltd.
  • For details, see \GXTConvert\Compression\PVRTC.cs and LICENSE.md
• Texture swizzle logic reverse-engineering and original C implementation by FireyFly
• Testing and moral support by Ehm2k