Abstract: In order to improve the computer simulation of the brushstroke multi-color in
Chinese painting, this paper proposes the multi-color effect emulate based on the technique of
writing. By establishing a stroke model, the thick or thin of sub-stroke (center writing) is changed,
or several sub-strokes (side writing) are superposed which offset a certain distance. Thus the
complex process of calculating the color in the stroke area point by point is avoided and the
running speed is enhanced. The center writing and the side writing are determined by the angle
between brush and paper, and the intelligent technique of writing is realized when the center
writing and the side writing are interchanged. Then the effect of brushstroke multi-color emulate
is produced by two different techniques of writing.

Key words: computer application, computer art, Chinese painting simulation, brushstroke
multi-color, strokes superposing, technique of writing model