export declare class Context3DBlendFactor extends Object {
    static ONE: string;
    static ZERO: string;
    static SOURCE_ALPHA: string;
    static SOURCE_COLOR: string;
    static ONE_MINUS_SOURCE_ALPHA: string;
    static ONE_MINUS_SOURCE_COLOR: string;
    static DESTINATION_ALPHA: string;
    static DESTINATION_COLOR: string;
    static ONE_MINUS_DESTINATION_ALPHA: string;
    static ONE_MINUS_DESTINATION_COLOR: string;
    constructor();
    static getGLVal(gl: WebGLRenderingContext, str: string): number;
}