semi transparent outline

The shader can draw object outline and object been semi transparent state.

The shader is not based-on post-image process and can get better performance

The noly diffrence of VerticsOutline_Always and VerticsOutline_Normal is VerticsOutline_Always will always show outline, but VerticsOutline_Normal not

You can get more Information in github:https://github.com/zhangmaker/Unity-Outline