What texture are we talking about?????
Perceived texture is using materials which remain 2 dimensional, yet to view them you can almost feel the different levels and roughness, etc. For example, on this piece depicting a fig branch. The depth and shading is there but the canvas and the fabric are still quite 2 dimensional. If you ran your hand over it, you would just feel the smoothness.
These are the results of the two pieces shown above (side by side). And then the two pieces woven together as the background for the piece shown
This one reminds me of an the cold cut edge of an agate