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学习电视教材:

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电视布光下

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Transcript of "电视布光下"

  1. 1. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. Questions:  什么是电光源的显色性?  什么是发光效率和光通量输出?  聚光型灯具有何特点?常用的聚光型灯具有 哪些?  散光型灯具有何特点?常用的散光型灯具有 哪些?  灯光控制主要是控制哪些内容?  调光设备有什么作用?
  2. 2. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. 二、摄像布光 (一)布光的光型 (二)布光程序 (三)静态布光 (四)动态布光 (五)摄像采光 (六)画面影调 (七)布光实例
  3. 3. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (一)布光的光型 灯光按照光线的造型效果可以分成: 主光 辅光 轮廓光 背景光 装饰光 效果光 场景光  布光一般是对各种光型的灯光进行综合运用
  4. 4. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (一)布光的光型 ⑴顺光:  光线投射方向与摄像机拍摄方向一致,且高度接近。也称为“前 向光”或“正面光”。顺光可使被摄物体受光均匀,没有阴影,淡化 物体表面的纹理、凹凸等,色彩还原好。但缺乏立体感。  一般被用作辅光,或以小聚光灯制造眼神光。但在表现物体空间 感方面尚显乏力,常使画面平淡呆板。  ⑵前侧光:  光线投射方向与摄像机拍摄方向成45°左右。前侧光可使被摄物 体产生明暗过渡层次,在表现物体的立体感和质感方面十分有力。 也能用阴影衬托出被摄体受光的亮面,从而显示出深度感。
  5. 5. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  6. 6. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (一)布光的光型 ⑶侧光:  光线投射方向与摄像机拍摄方向成90°左右。侧光可使被摄 物体产生巨大的明暗反差,产生极大的阴影。  这类照明在人像方面经常使用,一般以直射光构成主光,它 能将脸部自鼻尖分为一明一暗,表现人物内心的特殊状态。 侧向直射光构成的环境光,能加强空间的纵深感。
  7. 7. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (一)布光的光型  ⑷后侧光:  光线投射方向与摄像机拍摄方向成135°左右。 后侧光可勾勒物体轮廓,使物体的正面形成较大 暗区。如果以直射光构成这个方向上的主光,可 使人物产生神秘、恐怖的感觉。用两个后侧光在 人物两侧构成双主光,可获得雕塑般的立体造型。
  8. 8. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. 
  9. 9. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (一)布光的光型  ⑸逆光:光线投射方向与摄像机拍摄方向成 180°左右,也称为“后向光”。逆光清晰的轮 廓与看不清的细节是逆光造型的特点。  以逆光作主光拍摄人物时,能获得剪影的效 果。在许多影片中,作为恐怖人物出场之用。
  10. 10. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (一)布光的光型 ⑹顶光:指由被摄物体上方投射下来的光线,以垂直照 射物体最为生硬。顶光在人像造型中,除了邪恶人物 外,一般避免使用垂直顶光。45°的后向顶光常被用 来修饰头发。  ⑺底光:指由被摄物体的下方投射上来的光线,也被 称为“脚光”。底光能造成扭曲的造型效果,在人像造 型中,能产生丑化和恐怖的感觉,大多用于恐怖片中。
  11. 11. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  12. 12. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (二)布光程序  大场面布光程序  场景光-背景光-主体光  小场面布光程序  主体光-背景光
  13. 13. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (三)静态布光  1、三维物体布光(三点布光)  用主光、辅光、轮廓光三种基本光进行照明布 置,能将三维物体的立体感、质感和纵深感的 基本造型呈现在二维电视屏幕上。这种基本布 光方法叫“三点布光”
  14. 14. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (三)静态布光 三 点 布 光
  15. 15. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (三)静态布光
  16. 16. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (二)布光程序之三点布光? Video演示过程
  17. 17. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (三)静态布光  2、人脸布光  细致刻画人物脸部特征,做到形神兼备  3、反光物体的布光  改变摄像机位和被摄物位置,避开物体的反光 斑点  移动灯位,使反光斑点移到画面外  将硬光软化,减少物体的反光  减少物体表面的光洁度,减少反光
  18. 18. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (三)静态布光  4、群体布光  由两个以上的人或物组成的相对静态的群体,可 采用分别布光等方法。 分 别 布 光
  19. 19. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (三)静态布光  4、群体布光  分组布光 分 组 布 光
  20. 20. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (三)静态布光  4、群体布光  整体布光 整 体 布 光
  21. 21. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (四)动态布光  对运动物体或摄像机运动时的布光  1、被摄物运动的布光  大面积布光 大 运 面 动 积 物 布 体 光 布 光 之
  22. 22. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (四)动态布光  对运动物体或摄像机运动时的布光  1、被摄物运动的布光  分区布光 运 分 动 区 物 布 体 光 布 光 之
  23. 23. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (四)动态布光  对运动物体或摄像机运动时的布光  1、被摄物运动的布光  连续布光 连 运 续 动 布 物 光 体 布 光 之
  24. 24. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (四)动态布光  对运动物体或摄像机运动时的布光  2、摄像机运动的布光  可以用活动灯具移动照明  使用摄像机机头灯或手提新闻灯  随摄像机运动不断调整照明的方位、高度和亮度平衡  灯光师要熟悉摄像的内容、路线、方向,使照明效果 前后一致、连续
  25. 25. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (五)摄像采光  利用自然光造型,包括直射的日光和散射的 天空光  自然光的方位、高度、强弱以及色温都随着 不同的时间、天气、环境而变化  摄像只能选择合适的时间、光位、滤色镜, 或利用反光板采光
  26. 26. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (五)摄像采光  1、自然光  日出光与日落光  斜射日光  午间顶光 1、日光变化图
  27. 27. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (五)摄像采光  2、日光的光位  顺光  顺侧光  侧光  侧逆光  逆光
  28. 28. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (五)摄像采光  3、反光板采光
  29. 29. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  30. 30. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  31. 31. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  32. 32. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (五)摄像采光 4、室外散射光  日出日落-低色温,光线柔和  厚云遮日-高色温,照度较低  薄云遮日-高色温,高照度
  33. 33. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (五)摄像采光 5、室内自然光的特点  明暗反差大  室内暗,被照物轮廓明显  室内反射光做辅助光  多角度的窗户丰富物体的光照效果
  34. 34. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (五)摄像采光  6、混合光  室内混合光  确定统一色温  根据主要光源色温选择照明光源  根据主要光源色温选择摄像机滤色片,调整白平衡  室外混合光  以高色温为统一色温
  35. 35. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  36. 36. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  37. 37. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  38. 38. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  39. 39. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (六)画面的影调  ⑴高调:  指以亮度等级偏高的光线为主构成的画 面影调。以正面散射光照明为宜,以浅 色的物体为主。  特点:高调画面明亮、透气,是许多热 闹活跃的场面经常使用的影调。  高调画面还适宜表现潜意识、梦境等非 常态画面,以增加空间的虚幻感。
  40. 40. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  41. 41. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (六)画面的影调  ⑵低调:  拍摄低调作品时,选择深色的景物,并以 逆光或侧光照明,曝光应以被摄物体亮部 的反射光值为准,曝光不宜过度,否则难 以形成低调的效果。  特点:低调画面暗淡、凝重,画面大部分 为暗区,小部分光线集中、强烈,使整个 画面更显深沉。
  42. 42. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  43. 43. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (六)画面的影调  ⑶中间调:  灰色占优势,可用射光照明,也可用散射 光照明,但光比不能过大,选择的景物以 明度适中的颜色为主。  是运用最多的一类,符合人的视觉习惯。
  44. 44. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only.
  45. 45. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (七)布光案例
  46. 46. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (七)布光案例
  47. 47. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. (七)布光案例
  48. 48. Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. 学习电视教材:  照明技法
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