七年级美术上册第3课《空间的魅力》课件1赣美版.ppt

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空间的魅力,请同学们注意观察并思考问题 这是什么现象?它有什么规律?,近大远小、近高远低、近宽远窄、近粗远 细、近疏远密、近实远虚,透视现象,透视变化是我们在生活中经常看到的视觉现象,在绘画中合理地运用透视,可以塑造画面空间,可以在作品中展现空间的无限魅力。,透视基本规律:,近大远 小,平行透视:又称一点透视,成角透视:又称两点透视,透视的基本分类:,消失点,消失点,消失点,透视原理,1.视平线:,就是与画者眼睛平行的地平线,2.视 点:,就是画者眼睛的位置,3.消失点:,就是在透视中伸远到视平线上的点,又叫灭点,消失点,透视线,平行透视又叫一点透视,通常看到物体的正面,而且这个面和我们的视角平行。由于透视的视角上的变形,产生了近大远小的感觉,透视线和消失点就应运而生。平行透视有一个消失点,因为近大远小的感觉,所以产生了纵深感,透视在绘画作品中的运用,课堂作业: 根据平行透视原理,画一个室内空间的透视草图。注意视平线和消失点的位置。,

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