Method updateBlendFunc

core/2d/SpriteBatchNode.cpp:671–683

}

void SpriteBatchNode::updateBlendFunc()
{
    if (!_textureAtlas->getTexture()->hasPremultipliedAlpha())
    {
        _blendFunc = BlendFunc::ALPHA_NON_PREMULTIPLIED;
        setOpacityModifyRGB(false);
    }
    else
    {
        _blendFunc = BlendFunc::ALPHA_PREMULTIPLIED;
        setOpacityModifyRGB(true);
    }
}

// CocosNodeTexture protocol
void SpriteBatchNode::setBlendFunc(const BlendFunc& blendFunc)