hi who can make a effect to mesh sprite ,thanks

hi can you make a effect to mesh sprite ,

you can use sprite point to make this effect with 3para,

like this set effect para:mesh sprite with angle(para0) to distance(para1) at point1(para2).

if the webgl have the api to do this ,we can make animation by change the 3para, we can make a head smile,angry, it,s very usefull