Ключевые слова: 3d, background, banner, belgrade, blowing, blue, celebration, country, europe, fabric, flag, flagpole, flagstaff, flutters, flying, freedom, government, holiday, independence, nation, national, nationality, patriotic, patriotism, pole, realistic, render, rendering, serbia, serbian, sign, silk, sky, state, symbol, symbolic, textile, wave, waving, wind,