About "3DText" shader licensing

Questions & Answers
1

May I use the following “3DText” for business?
thanks.

2

http://creativecommons.org/licenses/by-sa/3.0/

All is there concerning this page.

If you want to see in context, it is located at the bottom of the page you linked.

You are free:

    to Share — to copy, distribute and transmit the work
    to Remix — to adapt the work
    **to make commercial use of the work**

So yes you can.