premiere遮罩分解根底教程 Lynda – Premiere Pro Guru：Compositing and Masks
解说Premiere中遮罩战分解的根底常识，包罗修正通明通讲，操纵Ultra Key去抠绿布蓝布，跟踪遮罩等
Master compositing and masks using the native effects in Adobe Premiere Pro—with no third-party plugins. Adobe Premiere Pro Master Instructor Luisa Winters shows how to make these crucial techniques part of your everyday editing workflow. She covers creating and modifying alpha channels, keying blue and green screen footage with Ultra Key, using track mattes to affect moving parts of clips, changing the look of footage with blend modes, and so much more.
