Ключевые слова: 3 dimension, 3d, 3d computer graphics, 3dcg, air, background, background material, balloon, balloons, blue sky, cg, circumstance, colorful, colourful, combined, composite, composition synthesis, compound, computer graphics, eco, ecology, ecology image, emptiness, environment, event, firmament, float, fly, flying, heart, heaven, hover, illustration, jump, levitate, light, material, mixed, scenery, setting, sky, synthetic, synthetical, three dimension,