NVIDIA Cg Documentation is down!

Official NVIDIA Cg documentation is down. Where is some other reliable reference? Should we still write shaders in Cg?

 

We can still use web.archive.org. I have sent an inquiry to Nvidia about restoring its tutorial and documentation, but not really expecting their response.
https://web.archive.org/web/20161022112854/http://http.developer.nvidia.com:80/Cg/index_stdlib.html
https://web-beta.archive.org/web/20....com:80/CgTutorial/cg_tutorial_chapter01.html

 

Technically you've been writing your shaders using straight HLSL for a while now, not Cg. There's a hand full of Cg-isms left in the ShaderLab notation, and a few functions that seem to behave like Cg but are actually just because Unity has setup a #define someplace to replicate the older Cg behavior to keep backwards compatibility.

 

So simply HLSL is the destination. I heard somewhere that Cg is just a dialect of it.

 

Cg is very HLSL like, with some very minor differences, which is why when they changed over to HLSL sometime during Unity 4.0 no one noticed.

Cg existed as a language designed to be OpenGL and DirectX agnostic, but probably a combination of the several existing projects that can convert from one to the other (mostly) seamlessly, the growing disparity between the two APIs, and most people not really needing to support both Nvidia stopped working on it.

 

If only there is any ShaderLab/HLSL tutorial like Nvidia's Cg tutorial geared towards newbies...

 

hey, perhaps this site will help
https://en.wikibooks.org/wiki/Cg_Programming/Unity

I've found it quite useful, also you can take a look at the MSDN hlsl docs:
https://msdn.microsoft.com/en-us/library/windows/desktop/bb509638(v=vs.85).aspx

hope that helps!

 

I found this guy's tutorials to be supremely helpful:
https://www.youtube.com/channel/UCEklP9iLcpExB8vp_fWQseg

 

this is crippling

 

It is back now! here is the enterance:
http://developer.download.nvidia.com/CgTutorial/cg_tutorial_appendix_e.html