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blend normals and roughness material function?

I have been having a go at trying to create sss skin in udk. I noticed in the udk documentation tutorial that i should use this to blend my roughness map and normals map.

However I dont see this in the material editor :S Where do I get it?

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asked Feb 21 '15 at 09:22 AM in Using UE4

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The blendnormalsandroughness node is a custom material function. create a separate function in the content browser by right clicking and going to Materials and Textures> Material Function.

You can copy and paste this function node from the content examples SkinRendering Map skin>materials>SkinMaster

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answered Oct 04 '15 at 06:04 AM

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