export enum BlendFunc
{
    One = 0,
    Zero = 1,
    DestColor = 2,
    SourceColor = 3,
    OneMinusDestColor = 4,
    OneMinusSourceColor = 5,
    DestAlpha = 6,
    SourceAlpha = 7,
    OneMinusDestAlpha = 8,
    OneMinusSourceAlpha = 9
}