【教程介绍】由优秀教程机构Digital Tutors出品的一套绿屏抠像特效合成AE教程，在这效果教程中我们将学习如何有效学习抠像，使用一些先进的技术，在前期蓝绿幕拍摄的素材可能对后期抠像不尽人意：诸如阴影，运动模糊，长头发，绿色溢出，等等这些都可以使抠像非常具有挑战性的，教程学习的重点分为多个部分：边缘遮罩，主体处理，溢出遮罩修复等问题。

然后我们将使用一个强大的技术来确定边缘，颜色正确的融入场景，并从头开始创建一个新的合成，然后会添加一个神奇的爆破特效合成效果教程为高清视频教程，含工程素材In this After Effects tutorial we’ll go over how to effectively deal with all of these problems using some advanced techniques in After Effects.

In a production environment compositors often have to key greenscreen footage that was shot in less than Ideal conditions.

Things like shadows motion blur long hair and green spill can make keying very challenging.

We’ll start off by evaluating the footage and planning how to tackle the shot.

We’ll go on to separate our key into multiple parts: making edge mattes a core matte and fixing problem areas with holdout mattes.

We’ll then use a powerful technique to fix edges, color correct the character to fit into the scene, and create a light wrap from scratch.

Then as a final touch we’ll add a magic blast effect.

When you’ve completed watching this After Effects training you’ll have a set of tools in your back pocket that will help you to get great looking keys from even the most difficult green screens.

【教程下载】AE教程：绿屏抠像特效合成教程Digital Tutors – Multi-Part Greenscreen Keying in After Effects