To create a layered shader

1. Pick the objects in the modeling window.
2. Click the Create Layered Shader icon in the Visualization control panel. A black shader highlighted in red appears in the Resident Shaders section.
3. Double-click the black shader highlighted in red. The Layered Shader window appears.
4. Select the shader in Resident Shaders you want to layer another shader on top of. Click once to highlight the selected shader in red.
   
5. Click Add on the Layered Shader window. The Shader’s name is listed in the window, and the black shader now displays your first shader choice.
   
6. Pick the shader in Resident Shaders that you want layered on top of the first shader. Click once to highlight the selected shader in red.
7. Click Add in the Layered Shader window. The Shader’s name is listed in the window and the shader displays a preview of the layers you have chosen.
8. Click the Assign Current Shader icon to assign the layered shader to your picked object.
9. Click the Hardware Shade icon to shade the object.