Occlusion is relatively simple, that is, the object in front blocks a part of the object behind.

The choice is that when the paper is not enough to draw, you can choose a part of the scenery to draw.

Density, for a simple example, when drawing leaves, there are places where there are many and dense leaves and places where there are few and sparse leaves. This is density.

Extended data

Painting composition mode:

1, diagonal composition: the main body is arranged on the diagonal to achieve the effect of highlighting the main body, which is rich, diverse and lively. The sense of lines makes the priorities clear and the structure balanced and comfortable.

2. Ring composition: The subject is surrounded by a ring or a circle, which can produce a strong sense of wholeness. It is often used to express the atmosphere of scene rendering without special emphasis on the subject.

3. Jiugong format composition: Place the main body or important scenery at the intersection of Jiugong grids. The four intersections of the word "well" are the best positions of the main body. This composition format is more in line with people's visual habits, making the subject become the visual center and the picture tends to be balanced.

4. Open composition: It breaks through the limitation of completing the picture modeling within a fixed framework, and the audience's aesthetic thinking on the picture extends from closed thinking to open painting.

5. Triangular composition: In the picture, three visual centers are set as triangular points, or three points form a triangular geometric scene to form a stable triangle. Regular triangle composition has the characteristics of stability, balance and calmness.

6. Symmetrical composition: it gives people a sense of balance, and the picture structure is balanced and echoes each other. Its characteristics are balance, stability and correspondence.

7. Compact composition: presenting a close-up of the scene, making it full of pictures locally, with compact, delicate and microscopic characteristics. Often used for portraits, microscopic objects, or showing local details. Make the characters' faces vivid and unforgettable.

8. Mouth-shaped composition: also known as frame composition, this composition is generally used in the foreground, with doors and window frames as the foreground, thus expressing the main body and defining the environment. This form of composition is more in line with people's visual experience, and viewers watch images through doors or windows, thus producing a stronger sense of realistic space and a certain perspective effect.

9. Three-dimensional composition: it can be divided horizontally or vertically. Divide the picture into three equal parts, each of which can be placed in the center of the subject form, which is suitable for representing the multi-modal parallel focus subject. The composition is concise and smooth.

Baidu encyclopedia-composition

Baidu encyclopedia-art