How to make transparent background of sprite in cocos2d-x -



How to make transparent background of sprite in cocos2d-x -

i'm going extract pictures heroes iii def files. pictures extracted bmp file bluish background. want utilize these pictures in cocos2d-x project demo purposes.

how can utilize programme (glblendfunc or shader?) create bluish background transparent , take shadow visible or not.

cocos2d-x transparent glblendfunc

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