Representation method of sketch
1, physical structure:
Various parts of an object are combined with each other in a specific way to form a whole internal structural relationship and become a structure. It is the basic factor that determines the appearance form.
2. Light and shadow:
The direction and distance of light acting on an object are important factors for the visual characteristics of the object surface. Objects are clear when they are near the light source, otherwise they are blurred. At the same time, objects with different materials and textures reflect light differently, thus forming the visual characteristics of this material.
3, texture:
The external form of any object, in addition to its own external mechanism, has its own unique material texture.
4, light and dark tones:
When representing an object, we can only draw the mechanism of height, width and depth of the object, the relationship between decency and perspective in the form of line drawing, which can show the sense of volume of the object without shading and make people intuitively understand its image. But the three-dimensional effect of this object is still not sufficient. If we describe its decent changing hue at the same time, we can show its three-dimensional space more fully.
5. sense of volume:
The sense of mass is the basic attribute of an object, and any object has certain measurable factors such as height, width and depth in space.
6. Specific performance:
Simple sketch representation of institutions is rarely used in the examination, and most of them use light and dark modeling method. According to the formation law of light and shade of objective objects, the shape, structure, texture and spatial relationship of depicted objects are accurately and vividly expressed by using the modeling method of light and shade.
7. perspective:
The choice of perspective is also an important part of test paper composition. Candidates don't have to stick to the traditional 45-degree perspective of still life painting. In contact, you can try to look up and down at various levels. Even feel the strong visual effect of objects from the perspective of insects.
The above is about the expression of design sketch. Understand clearly, copy more famous paintings and practice more. We will also make progress.
Learning to draw is not an easy task, so stick to it and overcome all kinds of difficulties! Come on! If you find it useful, please like to forward it, thank you!