修改 sprite 对象图片的渲染修改方法:
setBlendFunc(src, dst)
参数如下:
cc.ONE = 1;
cc.ZERO = 0;
cc.SRC_ALPHA = 0x0302;
cc.SRC_ALPHA_SATURATE = 0x308;
cc.SRC_COLOR = 0x300;
cc.DST_ALPHA = 0x304;
cc.DST_COLOR = 0x306;
cc.ONE_MINUS_SRC_ALPHA = 0x0303;
cc.ONE_MINUS_SRC_COLOR = 0x301;
cc.ONE_MINUS_DST_ALPHA = 0x305;
cc.ONE_MINUS_DST_COLOR = 0x0307;
cc.ONE_MINUS_CONSTANT_ALPHA = 0x8004;
cc.ONE_MINUS_CONSTANT_COLOR = 0x8002;