Representation of sketch

Generally speaking, there are two ways to hold a pen in sketch, one is to hold a pen like writing, and the other is to hold a pen like a popsicle;

Hold the pen like writing: tilt it at a 45-degree angle, hold the pen with your thumb and forefinger, and hold the pen with your middle finger facing the pen holder. Another way is to hold the pen like a popsicle: touch the paper with your fingertips and write with the tip of the pen and the edge of the pen.

Sketch is an artistic activity that uses a single color painting tool to intentionally shape the shape of an object on the screen carrier according to certain painting principles. Sketch is a variant of sketch. Sketch level is one of the important indicators to reflect the painter's spatial modeling ability.

Sketch is the basis and skeleton of painting; It is also the art of temperance that needs the help of reason most.

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. Light and shadow: the direction and distance of light acting on an object is an important factor in 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. Texture:? The external form of any object, in addition to its own external mechanism, has its own unique material texture.