Regarding unreal engine you can easily translate the code to material nodes. I've done this for UE3 and it should work for UE4 just the same. http://www.abload.de/img/blendnormals_rnm019yu1w.png http://oliverm-h.blogspot.de/2014/01/ue3udk-mixing-normal-maps.html
Hey guys! Wondering what techniques everyone has been using for blending two normal maps together- and if anyone out there prefers using both normal and height maps over blending normals. Basically, I know there are a variety of different ways you can blend normals together, some more arbitrary than others. This blog here…