Use multiple Arnold shaders in a stack mode with alpha in c4d

[chadi]

How to be able to stack different Arnold shaders on one object in a stack mode and control their position using alphas within c4d texture tag

[peter.horvath6V6K3]

Should be the same workflow you are used to. Add the shaders to the object and define the alpha on the Alpha (stacking) tab of the Arnold Material. Alternatively you can build a network with a mix_shader or layer_shader within one Arnold Material.

If that's not what you are after then please give me some more detail or show me a scene.