RGB Ipos

How do I use material Ipos? or change the RGB channels?

You can key the values RGB, Alpha, etc by hitting the I key over the material buttons area and selecting the value you want to key from the menu that shows up Then go into an Ipo Editor and select material from the dropdown and you can select channels as you would for other Ipos.

I’m not sure what you mean by “change RGB channels”. If you want to do more sophisticated stuff with the RGB values, you’ll probably want to use nodes.