(1) The conventional trees mentioned in this book mainly refer to some common tree species in northern China, such as locust, elm and poplar. After summing up, the traditional line drawing of trees can be divided into three methods: drawing trees with lines, drawing trees with dots and drawing trees with faces. Drawing tree elements with lines: Most of the leaves of common tree species in the north are finely divided, and their shapes are similar, so we often use "universal lines" to express their crown images by hand. In addition, the "universal line" is not only suitable for representing the crown, but also suitable for representing the main forms of plants such as shrubs, ground covers and turf.

Step 0 1 Draw the basic outline of the tree with a pencil in the form of a combination of spheres, and pay attention to leaving a "groove" at the bottom of the crown in case the trunk and branches penetrate there.

Set the light source at the upper left, draw the outline of the crown with a universal line with a water-based pen, and pay attention to the broken lines of the light receiving part and the coherent lines of the backlight part as far as possible.

Draw the trunk and main branches with water-based strokes.

Step 04 Use a water-based pen to add branches and leaves to the tree.

Step 05: Adjust the picture relationship to complete the final rendering.