Change Camera Renderer Data via script

Question

Does anyone know how to access and change the Renderer Data of Camera via script?

My purpose is this:

public bool ActiveDepth;
public Camera myCamera;
public RendererData renderClassic;
public RendererData renderDepth;

// if active get depth profile, else return to standard
void onGui()
{
    if(!ActiveDepth)
        myCamera.GetComponent<Renderer>().RendererData = renderClassic;
    else
        myCamera.GetComponent<Renderer>().RendererData = renderDepth;
}

Thanks