To Dajuice and anyone else

how could you make a basic brown colour on which you can add cell noise and all the patterns to build up a bark colour channel? there is no colour VOP on which to base the shader. there is as color map VOP but looks the same as a texture map VOP. i want to use full procedurals if i can.
ive also wanted to make a basic painted metal texture, e.g. surface of a tank, but been stuck at the same stage.. colour channel

just asking for an idea for a starting point, not ‘plz do it for me and post here’