What does sketch perspective mean?

The so-called perspective refers to the visual concept that objects are near big and far small, near real and far virtual within a certain distance. But in reality, the objects are not getting bigger and smaller, but the objects in front are artificially treated clearly and realistically, while those in the distance are of course virtual and small, otherwise there will be jumping pictures with unclear levels.

This can be reflected in sketch, oil painting, watercolor, gouache and sketch.

In the contemporary art college entrance examination education, the excellent examination papers in the examination room are images with strong contrast between black, white and gray. Black, white and gray also belong to the perspective category in a certain sense. When you draw, you interestingly emphasize the contrast between them, which invisibly opens up the sense of distance between objects and makes the image profound.

How can we have depth? For example, when you are practicing being a human figure, the highlights, bright and dark lines, gray surfaces, reflections and projections on people's faces will naturally show depth if these relationships are handled well.

In fact, the perspective in sketch lies in the treatment of the intersection of light and shade to a great extent, because the relationship between lightness and falsehood is very subtle. Say so much is actually for the sake of strong contrast and realism. There must be layers.

Extended data

Four basic laws of sketch perspective;

1, Parallel perspective: When one set of planes in a cube is parallel to the graph and the other set is viewed at right angles to the graph, it is called Parallel perspective. Parallel perspective has only one vanishing point, so it is also called small perspective.

2. Angular perspective: When the cube is perpendicular to the ground but at a certain angle to the picture, this perspective is called angular perspective. Angle perspective has two vanishing points disappearing to both sides, so it is also called two-point perspective.

3. Oblique perspective: when the object has a plane, it is at an oblique angle with the ground and the picture at the same time. Oblique perspective is also called three-point perspective, because its vanishing point is above or below the horizon due to different pitch angles.

4. Circular perspective: when the circular surface is higher or lower than the horizon, it is oval and is in a straight line with the height of the horizon. When the circle is parallel to the ground, its perspective law shows that the farther away from the horizon, the greater the curvature of its arc, while the circle is from near to far.

When the circle is perpendicular to the ground, the farther away from the main point, the larger the arc and the smaller the circle. All circles can find the center and diameter from the perspective change law of the square, and find the basis of the perspective change of the circle.

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