About Motion blur

Motion blur
 

        



       Motion blur is the apparent streaking of rapidly moving objects in a still image or a sequence of images such as a movie or animation.
    動態模糊是靜態場景( still image)或一系列的圖片像電影或是動畫中快速移動的物體造成明顯痕跡。

Computer animation

Similarly, in real-time computer animation each frame shows a perfect instant in time (analogous to a camera with an infinitely fast shutter), with zero motion blur. This is why a video game with a frame rate of 25-30 frames per second will seem staggered, while natural motion filmed at the same frame rate appears rather more continuous. Many next generation video games feature motion blur, especially vehicle simulation games. In pre-rendered computer animation, such as CGI movies, realistic motion blur can be drawn because the renderer has more time to draw each frame. Temporal anti-aliasing produces frames as a composite of many instants.

電腦動畫

類似地，即時電腦動畫中準確地顯示瞬時的畫面(像是一台有無限快快門的相機)，而沒有動態模糊。因此每秒25-30張畫面(frames per second)的電玩遊戲看起來斷斷續續 不自然，而用相同畫面更新率拍攝自然動作看起來卻是連續的。很多新世代電玩遊戲以動態模糊為特色，尤其是賽車模擬遊戲(vehicle simulation games)。 預先運算生成的電腦圖像中，如電腦合成影像CGI的電影，可以繪出逼真的動態模糊，因為渲染器(renderer)有更多時間來繪製每個畫面。隨機採樣(Temporal anti-aliasing )由於時間上避免失真需依照許多瞬間時間的組合來製造畫面。

Temporal anti-aliasing  (隨機採樣抗鋸齒)