Hi guys

I have a simple sphere mesh in Maya 2008. In my Hypershade, I create a Lambert and a misss_fast_skin shaders. I first MMB drag the Lambert to the sphere object and render and get the results. I then MMB drag misss_fast_skin to my sphere and render and get a different rendering. Does this mean the misss_fast_skin replaces my previous Lambert shader?

Also I want to create some surface textures using misss_fast_skin using Maya's Fractal. Do I click the button to the right of Bump Value and then select Fractal from the Hypershade material choices that come up? What about the other attribute Bump Depth ? What does it do ?

Thxs a million!