Starting Cg

Add a Custom Build Step for your Cg Shaders 

A Custom Build Step allows you to use a specific tool to build your Cg shaders. 
In this case, we're going to use the Cg compiler, cgc.exe. 
The following are the steps you have to take to accomplish this: 

1. Right click on a shader in the Cg Shaders folder created in the last step and select 
   Settings from the popup menu
2. Select All Configurations from the Settings For drop-down list box
3. Add cgc $(InputPath) -o $(InputName).vp -profile vp20 to the Commands textbox
4. Add $(InputName).vp to the Outputs textbox 


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Syntax Highlighting 

To help to increase the readability of your code, you can turn on syntax highlighting 
when editing your Cg files in Visual Studio 6.0. Here's how: 

1. Copy usertype.dat (included on the Cg CD) to the Visual Studio bin directory 
   (typically C:\Program Files\Microsoft Visual Studio\Common\MSDev98\Bin
2. Start regedit (Start -> Run -> regedit) and go to 
   HKEY_CURRENT_USER\Software\Microsoft\DevStudio\6.0\Text Editor\Tabs/Language Settings\C/C++
3. Add cg to the end of the FileExtensions key (each extension in the list should be separated with a semicolon)
4. Restart Visual Studio 

Your shaders should now have syntax highlighting.