在ATi昨天发布1.5版本“渲染猴子”之后，nVIDIA也不甘示弱，在今天推出Cg Toolkit 1.3 beta2，支持最新Geforce 6800系列GPU，Cg Toolkit 1.3 beta2的主要特点如下：

New 'vp40' profile, which enables texture sampling from within vertex programs

New 'fp40' profile, which provides a robust branching model in fragment programs, and support for output to multiple draw buffers (‘MRTs’)

Support for writing more than one color output (i.e. ‘MRTs’) in the arbfp1 and ps_2* profiles

New semantics to access OpenGL fixed-function state vectors from within ARB_vertex_program and ARB_fragment_program

New ‘-fastprecision’ option for arbfp*, fp30, and fp40 profiles, to use reduced precision storage (fp16) when appropriate.

Support for 14 profiles:

vp20, vp30, vp40 [NV_vertex_program 1.0, NV_vertex_program 2.0, and NV_vertex_program 3.0]

fp30, fp40 [NV30 and NV40 OpenGL fragment programs]

fp20 [NV_register_combiners and NV_Texture_shader)

vs_1_1 for DirectX 8 and DirectX 9

vs_2_0 and vs_2_x for DirectX 9

ps_1_1, ps_1_2 and ps_1_3 for DirectX 8 and DirectX 9

ps_2_0 and ps_2_x for DirectX 9

arbvp1 [OpenGL ARB_vertex_program]

arbfp1 [OpenGL ARB_fragment_program]

Cg Toolkit 1.3 beta2下载地址： http://developer.nvidia.com/object/cg_toolkit.html