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在电视或电影中,经常可以看到这样的惊险场面：高速行驶的汽车突然坠入山谷．然而,在实际拍摄中,摄影师并不是使用真车进行拍摄,而是用模型车来进行模拟拍摄．在工程技术及其它领域,人们常常利用模拟技术来代替对实际现象的研究,如模拟山洪爆发、模拟核爆炸等等．这样做不仅可以减少经济上的支出,还有可能预言某些在目前尚无法达到的条件下出现的情况．模拟情景不失真是使模拟技术发挥作用的保证．下面我们就以拍摄汽车从山崖上坠落为例说说模拟拍摄．
In television or movies, you can often see such thrilling scenes: high speed cars suddenly fall into the valley. However, in actual shooting, the photographer does not use a real car for shooting, but uses a model car to simulate shooting. In engineering and other fields, people often use simulation technology instead of research on actual phenomena, such as simulating a flash flood, simulating a nuclear explosion, and so on. This will not only reduce economic expenditures, but also predict what will happen under conditions that are currently unachievable. The absence of distortion in the simulation scenario is a guarantee for the simulation technology to function. Let’s talk about analog shooting by taking a car falling from a cliff as an example.