船都是在江河湖海中航行的。但电影中飘洋过海的镜头,却往往是在摄影棚内陆地上“行舟”拍摄的。这些镜头放映在银幕上,船真的象航行在滔滔大海上一样。陆地“行舟”是根据相对运动的原理拍摄的。生活中往往有这样的情形:自己坐的车、船未动,看见临近的车、船开走了,便会产生一个错觉,以为是自己所坐的车、船在开动。如果两船、两车同时、同向、同速前进反而以为自己坐的车、船是静止不动的,据此便可进行特 The ships are sailing in rivers and lakes. However, the scenes of films flying across the sea are often shot “on boats” inside the studio. These shots are shown on the screen, the ship really like the sailing in the surging sea. Land “boat” is based on the principle of relative motion shot. Often in life there is such a situation: I am sitting in the car, the ship did not move, see the car approaching, leaving the boat away, it will have an illusion that they are sitting on the car, the boat started. If two boats, two cars at the same time, the same direction, with the speed of the car instead thought they ride, the boat is stationary, which can be special