I feel stupid asking this question, but I can not find a clear answer anywhere (or much of an answer at all) so I feel I must ask. Is there anyone out there who can explain clearly how the parallaxRatio of CCParallaxNode works?
I have checked the source of CCParallaxNode and it does not explain it at all. I have searched the internet and stackOverflow extensively. I have tried to do good old trial and error. I'm still confused.
[parallaxLayer addChild:backgroundEffect_subtleRed z:100 parallaxRatio:ccp(0.5, 0.5) positionOffset:backgroundEffect_subtleRed.position];
To quote from a cocos2d book I own:
[paraNode addChild:para1 z:1 parallaxRatio:CGPointMake(0.5f, 0) positionOffset:topOffset]; [paraNode addChild:para2 z:2 parallaxRatio:CGPointMake(1, 0) positionOffset:topOffset]; [paraNode addChild:para3 z:4 parallaxRatio:CGPointMake(2, 0) positionOffset:midOffset]; [paraNode addChild:para4 z:3 parallaxRatio:CGPointMake(3, 0) positionOffset:downOffset];
"The CCParallaxNode is created like any other node, but its children are added using a special initializer. With it you specify the parallax ratio, which is a CGPoint used as a multiplier for any movement of the CCParallaxNode In this case, para1 would move at half the speed, para2 at the normal speed, para3 at double the speed of the CCParallaxNode, and so on"
So basically, its the ratio that the individual layers are moved in the relation to the movement of the whole CCParallaxNode.