Hi all .
I newbie and cocos2d-x and C++ and my english not good .
Now i researching about motionStreak .
See my picture :
Any one have idea for me 
. I just want prolong the blue , but the red is be prolong to .
I try set achopoint for my motionStreak but it not work .
Untitled-1.png (10.1 KB)
