> ## Name

> cg_2_1_0009 - Cg Toolkit 2.1 August 2008 (beta)

> ## Summary

> - New translation profiles for DirectX10 Shader Model 4
> - Shader source virtual file system for compilation
> - Callback for providing shader source included by the compiler
> - Improved handling of generic attributes by the GLSL profile
> - Performance improvements and bug fixes
> - New examples for OpenGL and D3D10

> ## Download

> - Windows 32/64-bit installer for Windows XP, Vista and Win7.
> - Mac OS X ppc/i386/x86_64 dmg for Tiger, Leopard and Snow Leopard.
> - Linux 32-bit tgz tarball and rpm for RedHat.
> - Linux 64-bit tgz tarball and rpm for RedHat.
> - Solaris 32-bit tarball.

> ## See Also

> - 2.1.0009, 2.1.0012, 2.1.0016, 2.1.0017
> - 2.2.0004, 2.2.0006, 2.2.0010, 2.2.0017
> - 3.0.0007, 3.0.0015, 3.0.0016
> - 3.1.0010