Normals and tilable textures

SaferDan

Hello so im making this model



and basically the idea is to have this as a base and have the uvs for this on a tilable texture and use geometry and decals and vertex painting etc to dress it up.

My question is, the buidling also has a high poly and i am wondering how to have uvs set up for the tilable texture AND the normals? My thinking at the momemnt is you need to set up a 2nd uv set for the normals? I have no idea how to do this though? I can create an empty set in maya but dont know how to bake the normals onto that set, and tbh i dont even know if this is the right way to go about it!

This will go into UDK and i know that you can have another uv set for decals so yeah any help to aid my confusion would be awesome

sorry for the block of text!

LMP

The way you're describing it, the way it would probably have to work.

SaferDan

awesome thanks for the reply

JordanW

Bake your normals to UV channel 1 (it's the only UV channel that normals will look correct in UE3) then in your material just tile the texture coordinates of your tiling normal. To combine them in the material multiply the tiling normal by 1,1,0 and add it to your macro normal. It's not super accurate but it works.