Scan in any material and save it as a standard Jpeg format… When using as a swatch you can either use - edit - use as motif ( sorry us the french version) then select an area and fill with motif select your desired motif and fill. However this will give you a flat fill with no distortion. So you can Open a new doc place your swatch into the doc and use filter - distort- spherisation (again this is the french no idea if the english is the same) this will give you the option to choose between a global sphere distort, horizontal or Vertical distort…
Hope this helps. Ive spent two years scanning textures and have created a small personal library, meshes, leathers, synthetics etc…
Hope this helps
Peace
TOMfoolery