ya instancing it would help a bit, also adding some static switch parameters to the material will allow you to enable and disable certain sections of the shader. when i get home i will take a little screen shot of the material for you, the last one i made was for a brick wall, and it blends between 2 diffuse maps, and…
the oneminus just inverts a texture, im useing it because normally a height map uses white for high values black for low but in the case of my vertex blend, i want the opposite to happen, i did the same with the vertex paint too since by default vertex paint is white, so maxed out on all 4 values, so adding the -1 node…