cocos2d/cocos2d-iphone — pull request #211 by LamPham (2012-06-15 03:44:34+00:00)
Title: Gles20 - [Enhancement] Rotational skewing support

I found a neat way to skew a CCNode that keeps the perimeter intact.
Take a look at ActionsTest.m to see it in action:
- ActionRotationalSkew
- ActionRotationalSkewVSStandardSkew

and SpriteTest.m:
- SpriteOffsetAnchorRotationalSkew
- SpriteBatchNodeOffsetAnchorRotationalSkew
- SpriteOffsetAnchorRotationalSkewScale
- SpriteBatchNodeOffsetAnchorRotationalSkewScale
- SpriteBatchNodeRotationalSkewNegativeScaleChildren
- SpriteRotationalSkewNegativeScaleChildren

It does not affect the current skew logic at all. It has barely minimal changes to the current cocos2d 2.0 API.
Thanks,