So, with 2 textures and 1 material, what is the cost? Would it still be 1 drawcall for the shader? Would it be hard on the shader opposed to one texture?
It’s still only 1 draw call. A call is made to draw a material, then the computations for that material’s look are computed in that call, using whatever maps attached to it. More maps will of course increase memory usage and processing time though.