Methods of Expression
Methods of expression vary, according to position and material, and may be Flat—either silhouette, or with appearance of relief, or in actual relief.
No. 254. A. B. C. Flat Treatment, Silhouette important. D. Relief Treatment of C.
No. 255. A. Flat Treatment. B. Relief of Husk Leaf.
Contrast exists always, thus in the Flat with or without outline the contrast is in Light and Dark, whether colour is involved or not.
In Relief the contrast is in Light and Shade. Contrast exists also in both treatments in lines straight and curved—in the variety of the latter, in lines with mass forms, and in dominant forms with smaller detail.
In the treatment of Flat Ornament the most important considerations are play of line and silhouette, and forms should be displayed in interesting profile; perspective and foreshortening being eliminated whenever they would result in distorted or inharmonious shapes.
In Relief treatment the designer is concerned with the effect of Light and Shade in harmonious arrangement of mass and line.
Perspective and foreshortening are permissible to some extent, but are largely dependent upon the work, greater license being allowable in high than in low relief.