Step 1: composition, typing, light and dark boundary: 1. Composition: first observe the proportion and primary and secondary colors of the object, and then conceive the picture. First, sort the inherent colors of objects (first, second and third in turn). The function of this is to make the picture colorful and not gray. Second, the boundary between typing and light and shade: fixed point, starting from the whole. Then find three lines, namely, the edge line of the object, the dividing line between light and shade, and the projection line.

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Step two:

Laying light and dark tones: 1, dark surface and projection: first tile and then follow the shape, unify the dark surface and projection with soft carbon, and then separate the dark surface and projection according to the structure and shape of the object. 2. Gray surface: Choose charcoal pens with different properties according to the inherent color of the object. The cable laying direction is arranged according to the physical structure. 3, bright surface and background desktop: the bright surface is the same, the inherent color is heavier, first spread a layer of background color, and the bright surface of white objects is left blank. When the carbon ribbon is used for the background desktop, attention should be paid to the relationship between color levels (the background color of the heavy color subject does not need to be too heavy, and the contrast is strong).

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Step 3:

Dark side adjustment: lay a big color, first lay the object, then lay the frame, first lay the heavy color object, and find three big blocks.

Wipe the dark surface and protruding lines evenly. A paper towel with a dark surface that reflects light can be folded clean to brighten the reflection and set off a gray surface with a paper towel.

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Step 4:

Create a gray surface: 1. Choose charcoal pens with different properties according to the inherent colors of different objects, with soft carbon gray for heavy objects and carbon for bright objects. Details are usually done in bright and gray areas.

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Step five:

Create a bright surface and desktop background: 1. According to the inherent colors of different objects, choose charcoal pens with different properties and follow the structure of cable laying direction. Different textures need different lines, such as wooden desktop, and rough lines are needed to reflect the texture of the board. The spatial lines behind the background need to be adjusted, so it is not advisable to let the background retreat to the back.

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