export declare const directionalLightHeader: {
    (functionName?: string): string;
    displayName: string | undefined;
};
export declare const ambientLightHeader: {
    (functionName?: string): string;
    displayName: string | undefined;
};
export declare const ambientSHLightHeader: {
    (functionName?: string): string;
    displayName: string | undefined;
};
export declare const ambientCubemapLightHeader: {
    (functionName?: string): string;
    displayName: string | undefined;
};
export declare const pointLightHeader: {
    (functionName?: string): string;
    displayName: string | undefined;
};
export declare const spotLightHeader: {
    (functionName?: string): string;
    displayName: string | undefined;
};
export declare const lightHeaderMixin: {
    defines: {};
    uniforms: {};
    attributes: {};
    varyings: {};
    functions: ((functionName?: string) => string)[];
    main: string;
};