Fast ISPC Texture Compressor

State of the art texture compression for BC6H, BC7, ETC1, ASTC and BC1/BC3.

Uses ISPC compiler.

See Fast ISPC Texture Compressor post on Intel Developer Zone.

Supported compression formats:

• BC6H (FP16 HDR input)
• BC7
• ASTC (LDR, block sizes up to 8x8)
• ETC1
• BC1, BC3 (aka DXT1, DXT5)

Build Instructions

• Windows:

  • Use Visual Studio 2012 on later, build solution or project files.
  • ISPC version 1.8.2 is included in this repo.

• Mac OS X:

  • Xcode project file included only for compressor itself, not for the examples.
  • You'll need to get ISPC compiler version 1.8.2 build and put the compiler executable into ISPC Texture Compressor/ispc_osx.
  • Use ISPC Texture Compressor/ispc_texcomp.xcodeproj, tested with Xcode 7.3.
  • Minimum OS X deployment version set to 10.9.
  • dylib install name is set to @executable_path/../Frameworks/$(EXECUTABLE_PATH)

• Linux:

  • Makefile included only for compressor itself, not for the examples.
  • You'll need to get ISPC compiler version 1.8.2 build and put the compiler executable into ISPC Texture Compressor/ispc_linux.
  • make -f Makefile.linux from ISPC Texture Compressor folder.