At the beginning of sketch, people usually draw spheres and cubes, and draw the relationship between light and shade, including bright surface, gray surface, dark surface, dividing line between light and shade, reflection and projection, which are the five shades of light and shade.
The highlight and the light receiving part are bright, and the dark side includes the backlight surface, reflection and projection of the object.
You can buy some introductory tutorials published by famous teachers or famous schools. For example, a set of Introduction to structure sketch published by China Academy of Fine Arts is more appropriate.
There are sketches of Chen Danqing and sketches of Chen Danqing (Tianjin People's Fine Arts Publishing House).
Extended data drawing step
Scientific and rigorous methods and steps can not only ensure the smooth progress of sketch work, but also cultivate our overall observation and description ability.
Establish a composition
Deliberately arrange the composition, so that the objects on the screen are given appropriate priority, and the composition is balanced and diverse, avoiding the disadvantages of scattering, chaos, emptiness and congestion.
Form and structure
Draw the body structure of the object with a long straight line (the invisible part of the object should also be drawn gently), and the shape, proportion and structural relationship of the object should be accurate. Then draw the shape and position of each light and dark level (highlight, bright part, middle color, dark part, projection and intersection of light and dark).
Gradually and deeply forming
Through the light and dark description of the body (from the whole to the part, from the big to the small), the sense of volume of the object is gradually shaped. The main and key details should be carefully described.
Adjustment completed
In-depth characterization inevitably ignores the relationship between the whole and the parts. At this time, it is necessary to comprehensively adjust (mainly referring to the physical structure including color, texture, space, primary and secondary, etc. ), so as to make a choice and highlight the main body.
References:
Baidu Encyclopedia _ Sketch (Sketch Meitu)