留学生Essay写作—视觉效果是改善还是破坏电影效果
13页1、http:/ 留学生论文专业定制代写网站留学生Essay写作视觉效果是改善还是破坏电影效果?IntroductionFrom the very inception of film visual effects have been employed by numerous photographers and film makers to enhance,to realise and create new meaning.The very early days of film took great advantage ofvisual magicto create illusions and trickery which have impressed countless audiences.Over a century ago when photography was emerging as an art form some unscrupulous commercial photographers would capture portrait shots using an ordinar
2、y exposure but then as soon as the subject was removed from the studio a collaborator would be positioned within the same setting,a quick exposure would be taken so as to leave a faint image trace on the film.The unsuspecting customer would then be handed a positive copy of their image with what appeared to be a ghostly figure in shot.A more subtle variation involved the customer being placed with numerous props around him or her,the props would be removed for the second exposure of the ghost ch
3、aracter,so as they wouldnt appear too deliberately double exposed.The ghost character would usually be wearing black clothing as film does notseeblack due to the chemical process in the emulsion of film which identifies light only,therefore only the ghost would appear in the second image.And herein began the industry of special effects.This ghost trick was the starting point for what is now known as the matte process where unrequired objects are removed from the exposure by masking them so they
4、do not register on the film.One of the first uses of this process in a moving image sequence was witnessed in Alexander Kordas Things To Come(1936)in which the upper levels of a futuristic underground city have been double exposed above footage of live actors,matte masks prevented one image showing on the other image.This film provides one of the earliest examples of special effects being adopted to positively improve the aesthetics of a film.Of course since films early experiments with visual e
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