how to mask Cocos2d

Posted by alex on Game Development See other posts from Game Development or by alex
Published on 2012-11-29T00:44:46Z Indexed on 2012/11/29 5:22 UTC
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cocos2d

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masking

Hi i'am iOS developer but i'm new to cocos2d.Im working on new game i use Kobold2d Have cocos2d installed too and i want to make this effect.

http://postimage.org/image/ngj399ibn/

I Know how is done on flash, but cant make it in kobold. There 2 images with the same size one is like low-res image for background and the secon hi-res over the first one,when the "reticle" mask move reveal the second image inside the circle and outsite only the background is visible. I was googling with no success, saw some ray wenderlich projects but not helpful.Any help

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