Last Updated: 08 / 03 / 2009

Cg 2.2 Beta, February 2009

Introduction

The award-winning Cg Toolkit provides a compiler for the Cg 2.2 language, runtime libraries for use with both leading graphics APIs, runtime libraries for CgFX, example applications, and extensive documentation. Supporting over 25 different OpenGL and DirectX profile targets, Cg 2.2 allows you to incorporate stunning interactive effects into your 3D applications.

Downloads | Supported Profiles | Forums/Bug Reporting | The Cg Tutorial Book

The components of the Cg Toolkit include:

NVIDIA Cg Compiler Release 2.2
Cg/CgFX Runtime libraries for OpenGL and Direct3D
Cg User's Manual
Documentation for the Cg Language Specification, runtime APIs, Cg standard library, CgFX states, and the Cg profiles.
Cg examples

Cg 2.2 supports a broad range of desktop operating systems (Windows 2000, XP, Vista, Mac OS X for Tiger and Leopard, 32-bit and 64-bit x86 Linux, and x86 Solaris) so your shader-enabled applications can use the same shaders no matter your choice of operating system or graphics API.

We hope that you will enjoy the exciting world of Cg programming.

Latest Cg Toolkit Features

The 2.2 Beta release of Cg introduces several new features and improvements:

DirectX10 and GLSL geometry profiles
Support for "latest" profile keyword in CgFX compile statements
Additional API routines (see the release notes for a complete list)
Documentation updates for all new API and features
New examples, plus the OpenGL examples have been migrated onto GLEW
Performance enhancements and bug fixes
Compatibility with Cg 2.1

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

New Profiles

Name

Graphics API

Domain

Graphics hardware required

glslg

OpenGL

Geometry

Multi-vendor OpenGL 2.0 / GLSL GPUs

gs_4_0

Direct3D 10.0

Geometry

Multi-Vendor DirectX 10 GPUs

Existing Profiles

Name	Graphics API	Domain	Graphics hardware required
gp4vp	OpenGL	Vertex	GeForce 8 series NV_gpu_program4 + NV_vertex_program4
gp4gp	OpenGL	Geometry	GeForce 8 series NV_gpu_program4 + NV_geometry_program4
gp4fp	OpenGL	Fragment	GeForce 8 series NV_gpu_program4 + NV_fragment_program4
hlslv	DirectX 9c	Vertex	Multi-vendor DirectX 9c GPUs
hlslf	DirectX 9c	Fragment	Multi-vendor DirectX 9c GPUs
glslv	OpenGL	Vertex	Multi-vendor OpenGL 2.0 / GLSL GPUs
glslf	OpenGL	Fragment	Multi-vendor OpenGL 2.0 / GLSL GPUs
arbvp1	OpenGL	Vertex	Multi-vendor OpenGL 1.x GPUs ARB_vertex_program
arbfp1	OpenGL	Fragment	Multi-vendor OpenGL 1.x GPUs ARB_fragment_program
vp40	OpenGL	Vertex	GeForce 6 and up NV_vertex_program3
fp40	OpenGL	Fragment	GeForce 6 and up NV_fragment_program2
vp30	OpenGL	Vertex	GeForce 5 and up NV_vertex_program2
fp30	OpenGL	Fragment	GeForce 5 and up NV_fragment_program
vp20	OpenGL	Vertex	GeForce 3, 4 Ti, and up NV_vertex_program
fp20	OpenGL	Fragment	GeForce 3, 4 Ti, and up NV_texture_shader + NV_register_combiners2
vs_4_0	Direct3D 10.0	Vertex	Multi-Vendor DirectX 10 GPUs
ps_4_0	Direct3D 10.0	Fragment	Multi-Vendor DirectX 10 GPUs
vs_3_0	DirectX 9c	Vertex	Multi-vendor DirectX 9c GPUs
ps_3_0	DirectX 9c	Fragment	Multi-vendor DirectX 9c GPUs
vs_2_x	DirectX 9	Vertex	Multi-vendor DirectX 9 GPUs
ps_2_x	DirectX 9	Fragment	Multi-vendor DirectX 9 GPUs
vs_2_0	DirectX 9	Vertex	Multi-vendor DirectX 9 GPUs
ps_2_0	DirectX 9	Fragment	Multi-vendor DirectX 9 GPUs
vs_1_1	DirectX 8 & 9	Vertex	Multi-vendor DirectX 8 & 9 GPUs
ps_1_3	DirectX 8 & 9	Fragment	Multi-vendor DirectX 8 & 9 GPUs
ps_1_2	DirectX 8 & 9	Fragment	Multi-vendor DirectX 8 & 9 GPUs
ps_1_1	DirectX 8 & 9	Fragment	Multi-vendor DirectX 8 & 9 GPUs

The Cg Tutorial Book

Update! Now available in both print and free, online-readable versions.

The Cg Tutorial: The Definitive Guide to Programmable Real-Time Graphics takes a tutorial-based approach to teaching Cg and high-level shading, and it comes complete with a standalone application that allows you to try out and modify the book's examples. To learn more about The Cg Tutorial or for information on discounted print copies, please visit the book's home page.

Downloads

Documentation
[Download] Cg Release Notes
[Download] Cg Reference Manual
[Download] Cg Specifications (PDF)
[Download] Cg Users Manual (English) (old, not updated)
[Download] Cg Users Manual (Japanese) (not current)
[Download] Cg Bumpdemo Tutorial (old, not updated)
[Download] CgFX Bumpdemo Tutorial (old, not updated)

Install Packages
[Download] Windows
[Download] Mac OS X (Leopard and Tiger) Installer
[Download] Linux X86 (gzipped tar)
[Download] Linux X86-64 (gzipped tar)
[Download] Linux X86 (RedHat RPM)
[Download] Linux X86-64 (RedHat RPM)
[Download] Solaris X86 (SUN Package)

Cg Redistributable Binaries
Cg redistributable binaries package contains the libraries and executables for all supported platforms of a Cg release in a single zip file.
Go to the Cg Redistributable Binaries Page.

Previous Versions
Cg Toolkit 2.1 February 2009
Cg Toolkit 2.1 November 2008
Cg Toolkit 2.1 October 2008
Cg Toolkit 2.1 Beta
Cg Toolkit 2.0 May 2008
Cg Toolkit 2.0 Jan 2008
Cg Toolkit 2.0 Beta
Cg Toolkit 1.5 Sep. 2007
Cg Toolkit 1.5
Cg Toolkit Feb. 2007
Cg Toolkit Sep. 2006
Cg Toolkit 1.5 Beta 2
Cg Toolkit 1.5 Beta 1
Cg Toolkit 1.4.1
Cg Toolkit 1.2.1
Cg Toolkit 1.1

Community Forums and Bug Reporting

Please post any questions or bugs to the NVIDIA Cg Developer Forums. This is the recommended method, as it allows the development community (and NVIDIA engineers) to collectively participate in resolving any issues you may find. Alternatively, you can email bugs to cgsupport@nvidia.com, however, we cannot guarantee a response to your emails.