export interface Dot {
    x: number;
    y: number;
    z: number;
    r: number;
    white: number;
    a?: number;
}
export interface Line {
    x1: number;
    y1: number;
    x2: number;
    y2: number;
    white: number;
    a?: number;
    w: number;
}
export type Projector = (x: number, y: number, z: number) => [number, number, number];
export declare function lerp(a: number, b: number, f: number): number;
export declare function frac(x: number): number;
export declare function vnoise(x: number, y: number): number;
export declare function hashD(a: number, b: number): number;
export declare function fibDir(i: number, n: number): [number, number, number];
export declare function angleDelta(a: number, b: number): number;
export declare function makeProj(yaw: number, tilt: number, cx: number, cy: number, scale: number): Projector;
export declare function paint(ctx: CanvasRenderingContext2D, dots: Dot[], dark: boolean, rMin?: number): void;
export declare function paintLines(ctx: CanvasRenderingContext2D, lines: Line[], dark: boolean): void;
export declare function radiusScale(size: number, pow: number): number;