export declare enum GlBlendMode {
    normal = "normal",
    add = "add",
    multiply = "multiply",
    screen = "screen",
    none = "none",
    normalNpm = "normalNpm",
    addNpm = "add_npm",
    screenNpm = "screenNpm",
    srcIn = "srcIn",
    srcOut = "srcOut",
    srcAtop = "srcAtop",
    dstOver = "dstOver",
    dstIn = "dstIn",
    dstOut = "dstOut",
    dstAtop = "dstAtop",
    xor = "xor",
    subtract = "subtract"
}
export declare function mapGlBlendModes(gl: WebGLRenderingContext): Record<GlBlendMode, any>;