Ultimate Billboard - Multipurpose Billboard & Fog Sprite Shader on Unity Asset Store
The only sprite shader you'll ever need! Billboard any sprite cylindrically or spherically WITHOUT messing up your transforms (scale/position preserved correctly). Add fog to any sprite WITHOUT messing up the color or transparency. UB is built on top of the default Unity sprite shader, so it's easy to use and familiar. No confusing, cryptic settings on the material - everything is super straight forward. No odd side-effects that you might normally get from random shader code on the web.