Howdy and welcome to part two of The Designer Twins: TouchDesigner and Substance Designer post. In part 1 we got our feet wet with Substance Designer and getting our beautiful materials output. We covered how to export bitmaps of our PBR mps, publishing parameters, and publishing an .sbsar file.
Substance Designer is a material creation program that doesn’t require knowledge of GLSL. There are loads of free resources for artists and designers which include PBR materials. If it makes sense in your pipeline to use them then have at it (after reviewing the terms of each resource).