Resample sprite while scaling down in Cocos2D

Question

I am trying to scale down a high resolution CCSprite in Cocos2D by setting the scale of the sprite as such:

mySprite.scale = 0.5f;

The problem is that the scaled-down image is not resampled, and appears pixelated. Is there a way to get a resampled version of the sprite in Cocos2D, or enable resampling at some level in the Cocos2D hierarchy (CCLayer, CCScene, CCDirector, etc.)?

this won't give good quality or good performance. Are you trying to avoid including SD images? — LearnCocos2D
No, I just want to implement zoom-in/zoom-out for a large map. Performance is not an issue, since not much is going on anyway other than viewing the map, and there will be a discrete number of zoom levels instead of being continuous. — owobeid

sergio sergio · Accepted Answer · 2013-02-14T19:44:11

You could try setting:

[texture setAliasTexParameters];

on the sprite texture and see if that improve things.

Otherwise, the only approach that I see is resampling the image at the OpenGl level. This would involve using gluScaleImage on your texture and would be slightly more complex to attain.

Resample sprite while scaling down in Cocos2D

1 Answers