Nvidia Cg TooKit v1.4 RC1 Released

The Cg Toolkit provides a compiler for the Cg language, runtime libraries for use with both leading graphics APIs, runtime libraries for CgFX, example applications, and extensive documentation. Supporting over 20 different OpenGL and DirectX profile targets, Cg will allow you to incorporate the stunning interactive effects into your 3D applications.Latest Cg Toolkit Features

This release candidate build of Cg 1.4 includes the following features and improvements:

Significantly improved code generation in most of the profiles

  Complete rewrite of CgFX. CgFX now works on all platforms, and works on non-NVIDIA OpenGL drivers. Substantial documentation for CgFX will be coming in a subsequent build of Cg 1.4

  CgFX now supports unsized arrays and Interfaces

  Substantially faster at compiling many long shaders, especially those that make heavy use of Cg’s “Interfaces” feature

  The Cg Runtime is now substantially faster in many cases

  Cg 1.4 now ships with native implementations for Win32, Win64, Linux (32-bit and 64-bit), and MacOS 10.3 (Panther) and 10.4 (Tiger)

  Note that some of this new functionality is currently only supported when using the CgGL OpenGL runtime library. The Direct3D-specific Cg runtime libraries currently do not support shared parameters, for example. We have also not yet provided Direct3D profiles for Shader Model 3.0.

All Cg 1.2 or Cg 1.3 programs should work with Cg 1.4 without the need to recompile the program. The compiler, runtime, and standard library changes were all made to be backward compatible. However, programs which used previous versions of CgFX will require changes, both to the calling application code, and also to the effect files. CgFX has been completely rewritten and is now incorporated directly into the Cg Runtime libraries.

Please see the release notes for details, known issues, and more.

Download:

  http://developer.nvidia.com/object/cg_toolkit.html