import { type ReactNode } from "react";
import { type Energy } from "./backdrop-clock.js";
import { type Layer } from "./backdrop-layers.js";
export interface BackdropClaim {
    layers: Layer[];
    energy: Energy;
    focus: {
        x: number;
        y: number;
    };
    /** Global alpha cap from the prominence axis. */
    prominence: number;
    /** A flat colour painted under every layer, or null to ride the theme background. */
    floor: string | null;
    /** Base particle tint when a layer or body does not name its own colour. */
    tint: string;
    still: boolean;
}
/** Publish a scene to the nearest host. Returns false when there is no host, in
 *  which case the caller renders the surface itself. */
export declare function useBackdropClaim(value: BackdropClaim): boolean;
export interface BackdropHostProps {
    children?: ReactNode;
}
/** Owns the single backdrop surface for an app. Place it once, at the root, with
 *  the app rendered inside it. */
export declare function BackdropHost({ children }: BackdropHostProps): import("react").JSX.Element;
/** The actual renderer. Rendered by the host, or inline by an unhosted Backdrop. */
export declare function BackdropSurface({ claim }: {
    claim: BackdropClaim;
}): import("react").JSX.Element;
//# sourceMappingURL=backdrop-host.d.ts.map