Traditional Culture Encyclopedia - Photography major - How to draw sketch portraits
How to draw sketch portraits
Step 1: When drawing a sketch, you must first pay attention to the basic shape, perspective, proportion and composition of the character's head, which is the "operating position", and distinguish between the large light-receiving surface and the backlit surface. At this stage, you don’t need to pay too much attention to the details of the eyes, nose, and mouth. Just consider the head as a duck egg shape, find its light and dark boundary line from top to bottom, find the big physical characteristics of the head, and distinguish the facial features in the bright part. The light-receiving surface and the backlight surface. It is necessary to carefully observe the image characteristics of the model and conduct body and structural analysis. At this stage, you don’t need to pay too much attention to the details of the facial features. The more the details are simplified, the more you can focus on the overall feelings and relationships of the object. The outline does not have to be very definite. The accuracy of the shape is gradually achieved in the process of sketching.
Step 2: Pay attention to the physical characteristics of the object and find out the changes in the boundary line between light and dark. This line may be sharp, slow, or faint. The virtuality and reality of the boundary line directly illustrate the changes of the form, "string" the form together, and closely connect the independent parts. Under different light source angles, the object is composed of faces in different directions, thus showing different shades. The different tones in turn also illustrate the shape. Remember: in general, no matter how shallow the reflection of the backlight is, it is heavier than the gray surface of the light-receiving part, and no matter how heavy the gray surface of the light-receiving part is, it is brighter than the reflective part of the backlight. The reason why the so-called "flowers" appear in the sketch is that the relationship between black, white and gray in the picture is not grasped well. We should pay attention to the proportion in the depiction of the backlight. It should be rich but not piled up, and it should be simple but not poor. If it is too virtual, it is easy to be empty, and if it is too solid, it is easy to jump; it must be compared with the bright part of the avatar. The bright part should be drawn complexly, and the dark part should be drawn simply; the contrast of the bright part is strong, and the contrast of the dark part is weak.
Step 3: The local in-depth stage, usually starting from the strongest and most distinct part of the head. For example, the nose is the center of the face, with a clear and strong shape. The base of the nose and philtrum are connected with the mouth. The ball shape formed by the orbicularis oris muscle combines the upper and lower jaws. The eyes in the orbits on both sides of the nose are vivid, bright and rich. For expression, the eyebrows should be drawn from the inside out on the brow bone, the cheekbones should be extended outward to the ears, and then the rest should be drawn. If local isolation occurs during the in-depth process, it can be adjusted at a later stage without affecting the depiction.
Step 4: Return to the starting feeling, capture the original feeling, and make an adjustment to the overall relationship, either subtracting or adding, making it stronger or weaker. Pay attention to the control and expression of the rhythm and order of the picture. Gradually achieve more complete results. When adjusting, pay attention to the overall virtual and solid position of the head, as well as the front and rear space, and find a good order. Be careful to avoid some common mistakes: for example, the dark part of the neck or the dark part under the nose is as dark as the hair, because the color of the skin is not darker than the hair even if it is in the dark part. Another example is: forgetting that the skull determines the head shape, focusing on the facial features when depicting the subject, and drawing the head without the back of the head... Make more observations in the final stage and be careful when writing.
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