In the performance of the object, if only in the form of line drawing objects with a high, wide, deep three-dimensional structure, decent, perspective relationship drawn, painted light and dark can not show a sense of the size of the object, so that people can visually the recognition of its image.

If only the performance object, the objects used in the form of line drawings, width, and deep-space structure of 3 degrees, decent, lens relations, not painted and shade can also show the volume of the object in the visual sense, so that people can understand its image. However, this object was not

When performance object, if only uses the line drawing the form the object high, wide, the deep three-dimensional space structure, the dignity, the perspective relations picture to come out, does not spread the light and shade also to be able to present the object the volume feeling, enables the peo

In performance object, if only with a line drawing object in the form of three dimensional structure of high, wide and deep, dignified, perspective drawing, not paint dark also takes on a sense of the volume of an object so that people can recognize it on the Visual image. However, the body of the s

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