ParticleSystem : "GravityY" param works oppositte direction ?

when “GravityY” param is over zero (for example 100) , 

particle should goes to top of the screen.

but particle goes to bottom.

In ParticleDesigner2 screen , it goes to top of the screen.

but I’m not published (I edited json directly)

solved.

ParticleDesigner2(or cocos2dx) Screen : left bottom is (0,0)   Y position increses to the top

CoronaSDK Screen : left top is (0,0)      Y position increses to the bottom

Is ParticleDesigner publishes “Y reversed” JSON? 

You’re supposed to set “Flip Y” when you export for Corona SDK. Then everything should work for you.

thank you!

solved.

ParticleDesigner2(or cocos2dx) Screen : left bottom is (0,0)   Y position increses to the top

CoronaSDK Screen : left top is (0,0)      Y position increses to the bottom

Is ParticleDesigner publishes “Y reversed” JSON? 

You’re supposed to set “Flip Y” when you export for Corona SDK. Then everything should work for you.

thank you!