Hey there,
I am trying to use object-space normalmaps in UE4 but have some trouble getting this to work properly. In my material I unchecked “tangent space normals” which works just fine, but the lighting rotates also when the object is rotated. So I assume the object space normals have to be transformed from local space to world space somehow.
I tried doing that by transforming the normals from the normalmap using the “transform vector” node (local to world) in the material but it doesnt work for some reason (I also made sure my normals are within the -1|+1 range before transform of course). I have no clue why this isn’t working.
So maybe any of you has a working object-space normalmap material or an idea how to get this working properly?
Thanks,
QB