One material, multiple objects, multiple shaders ?

[Neigno]

Hi,

Is it possible to assign one material on different objects but with an unique surface shader for each object ?

I guess i'm doing something wrong with the index input from the switch shader, which node should i use ?

Thanks.

[madsd]

I would use 1 material, and use array maps instead, you can use the index driver from your material ID. Its quite powerful to work like that, and you can maintain sanity in very big noodles handling many color controllers.

You basically setup a single material with the index lists you need.
I dont know how you do it in c4d, but I can write an OSL shader that does it all with a single wire to a single material.

[peter.horvath6V6K3]

User ID from the Arnold tag is exported as a user parameter called user_id. Instead of the utility shader, use a user_data_int shader to drive the index of the switch, with the attribute set to user_id.

[Neigno]

Thank you so much, it works.