Question about the deprecated Cg(C for Graphics)

Hi Sir,

I know Cg is deprecated, but I was not able to find the correct forum(may also be deprecated) to ask a question, so I post the question here, hoping someone would help or let me know the right place to ask questions about Cg.

also, due to this forum does not allow posting multiple links/images for a new user, I describe my question as below :

Cg_question.pdf (109.2 KB)

really appreciated for any suggestion and help !

eventually I found a bug about reading data for rendering, the Cg part actually works perfectly, problem solved.