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The coat has 2 material IDs, but SSS shader isn't really compatible with Multi/sub-object right now, so here's a trick I used to separate the 2 materials of the coat without breaking the model. I found it in cgtalk 3dsmax forums.
In my case I just wanted a different bump mapping for each one of my 2 IDs. Instead of making 2 SSS
Fast Shaders, which won't work, you create just one. Then you have to do the steps below to end up with your multi/sub-object material, which you configure as if you were creating a standard basic material, but just the bump maps will be taken into account for the final SSS shader. |