02-12-2012, 03:33 PM
(02-12-2012, 03:29 PM)empirefantasy Wrote: dvx: positive number ---->
dvx: negative number <---
dvy: negative number,make the ball goes up ^
dvz: positive number,make the ball goes down v
Problem is not about dvx-y's,
![[Image: llqsMqz.jpg]](http://i.imgur.com/llqsMqz.jpg)
![[Image: llqsMqz.jpg]](http://i.imgur.com/llqsMqz.jpg)
![[Image: llqsMqz.jpg]](http://i.imgur.com/llqsMqz.jpg)
![[Image: llqsMqz.jpg]](http://i.imgur.com/llqsMqz.jpg)