教程种，用AE制作循环无缝连接的条幅。

我们学习控制循环的次数和条幅之间的距离。

通过运用简单的表达式和数学运算，我们可以得到很棒的效果。

包含视频教程和AE工程文件。

In this tutorial, you will learn how to create a line that loops seamlessly.

We will be able to control the amount of loops and the distance between each loop very easily using the rigged system we will create.

Using expressions and some basic mathematics, our rig will save us tons of time and help achieve a great result! Lets open up After Effects, and get started.

官网：http://cgi.tutsplus.com/tutorials/how-to-build-a-seamless-looping-line-using-expressions–cms-20430