Draw a geometric figure

Draw with 2b pencil, and determine the approximate position, height, width and proportional relationship between geometric bodies. Generally, long straight lines are used to quickly outline the shape of geometry.

Step 2 refine your body

Use a line to describe the specific shape of the geometry. If it is a combination of multiple geometries, pay attention to the size, height and contrast between each geometry. After determining the geometry, find out the boundary between light and shade.

3, paving light and shadow

The geometry and the dark part of the projection are colored, in which the projection is the darkest. In this process, the cable from the light-dark boundary to the dark part needs a smooth transition and cannot be too rigid.

4. Expand the large color block

Pave the background tone, and form a contrast tone by observing the illumination angle of light.

Step 5 adjust the color tone

You can adjust the brightness change of the picture by wiping, so that the processing of lines and the relationship between brightness and darkness presents a more delicate effect.

6. Deep shaping

Carefully depict the meeting parts of geometric figures, and slowly make the hierarchical change effect and transition between gray surface and bright surface.

Second, what is sketch?

1. The three elements of sketch include space, light and shadow, and structure.

2. Sketch also includes three major areas, namely, bright surface, gray surface and dark surface, because the light will have such a light-shadow relationship when it hits the object directly.

3. structure sketch style or "structure sketch" is a sketch form with "line" as the main expression. It is a sketch method that focuses on the structure of the form, omits or weakens the light and shade of the form, and highlights the combination relationship of the form, that is, the structural characteristics.

4. Light and dark modeling or "light and dark sketch" is a sketch form with light and dark tones as the main means of expression, and it is a sketch method that unifies the understanding of body light and dark feeling and volume to shape and express the body.