Embossed form

The different degrees of compression space form the two basic forms of relief - high relief and low relief.

High relief

Because the high relief is thicker and thicker, the compression of the shape is smaller, so its spatial structure and shaping features are closer to the round sculpture, and even partial treatment is completely processed by round carving. High relief often uses the spatial undulation or exaggeration of the three-dimensional shape to form a concentrated spatial depth sense and strong visual impact, which makes the relief art have a special expressive power and charm for the image. The famous architectural relief on the Arc de Triomphe in Paris's Charles de Gaulle Square, "The Departure of 1792", is a masterpiece of high relief. The artist successfully combines the processing methods of round sculptures and reliefs, fully demonstrating the complex hierarchical relationship of characters' overlapping and undulating changes, giving people a strong sense of visual impact.

Bas-relief

The bas-relief has a lower starting position, a larger shape compression, a stronger flatness, and a greater degree of closeness to the drawing form. It mainly does not rely on the physical space to create a spatial effect, but more uses the painting method or perspective, illusion and other treatments to create a more abstract compression space, which is beneficial to enhance the attachment of the relief to the carrier. The ancient Assyrians of Mesopotamia are probably the best artists who use this method for artistic expression. In a series of "Assyrian Hunting Maps", they use bas-relief techniques very well, showing a vibrant artistic image with rhythm and rhythm, and displaying characters and animals with complex movements. Inner feelings. The choice of the degree of compression of the relief space usually considers the function, theme, environmental location and light of the representation object, among which the environment and the light factor play a decisive role. Good sculptors are always able to handle these relationships well, so that the work achieves a good visual effect.

Under the basic creative principle of fully expressing aesthetic thoughts and emotions, the different forms of relief have their own emphasis on the artistic style or the adaptability of expression. Generally speaking, the high space depth and strong plasticity of the high relief give the emotional expression form a solemn, calm, serious, and honest effect and grand momentum; the bas-relief is a painting line that flows like a flowing stream. The planar composition of multi-view cuts conveys a light music-like peace and lyrical romantic tenderness.

The development of sculpture art has made the round sculpture increasingly strengthen its relative independence. In contrast, the relief is more dependent on a kind of dependence, that is, the dependence on “flat” or “wall”, but its unique performance. The traits and rich sculptural styling are still irreplaceable by other art forms. Moreover, its aesthetic characteristics, with the promotion of the modern art revolution, have increasingly strengthened its relative independence. The dependence and adaptability to the fixed "wall" is no longer as strong, restrained and unshakable as the classical relief in modern relief. For modern reliefs, the “wall” as a carrier or environment is free and optional, and therefore has a vast space for free development.

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