This is generally done in the “figure” part (especially in flowers, leaves, etc.), of damasks and similar textile fabrics. The shading can be applied to the satin weaves to the best advantage.
Rule for Shading with Satin Weaves.
Put the ground weave (filling for face) over the entire part of the □ designing paper, which is required to be shaded; afterwards add one, two, three or more horizontal or vertical (connecting) spots to the one spot which forms the foundation or satin filling for face. The heaviness of the shade is regulated by the sketch or the fabric. For example: In an 8-leaf satin the difference between filling for face and warp for face may be made with three or four changes only; or with the entire seven changes.
For shading twill weaves no rule can be given.
Fig. 100.—5-Leaf Satin.
[Fig. 100] shows the shading of the 5-leaf satin, four changes, each eight threads, giving 4 × 8, or 32 threads for the effect.