After Effects Vegas

描边特效的一种，就不一一解释了！实践一下就有体会了！ 

Vegas特效可以自动捕捉图象的暗、亮部分。 

Stroke（Image Contours和Mask/Path） 

Segments调整这部分可以有霓虹灯的效果 

{Segments/Length/Segment Distribution（Bunched/Even）/Rotation/Random Phase/Random Seed} 

Rendering{Blend Mode（Transparent/Over/Under/Stencil）/Color/ Width /Hardness/Start Opacity/Mid-point Opacity/ 

Mid-point Position/End Opacity}