import type { TerrainField } from '@pascal-app/core';
import { type BufferGeometry, type Material } from 'three';
import { MeshBasicNodeMaterial } from 'three/webgpu';
/** Presentation-only meshes are never picked: clicks fall through to what lies under them. */
export declare const noopRaycast: () => void;
type Point = readonly [number, number];
/** The veil of the lot's own ground: its fill, or its sculpted terrain. */
export declare function groundVeilMaterial(groundColor: string): MeshBasicNodeMaterial;
/**
 * The veil of the horizon disc: the ground past the lot only (under the lot's own veil a second
 * one would read as a step at the property line), dissolving into the backdrop by twice the lot's
 * radius.
 */
export declare function horizonVeilMaterial(groundColor: string, lot: ReadonlyArray<Point>, bounds: {
    cx: number;
    cz: number;
    radius: number;
}): MeshBasicNodeMaterial;
/** The grade ring's ribbon along one outline where the ground meets a level below grade. */
export declare function gradeRingGeometry(outline: ReadonlyArray<Point>, field: TerrainField | null): BufferGeometry;
export declare function gradeRingMaterial(): MeshBasicNodeMaterial;
/**
 * Drawn only while the ground is veiled: the veil of one solid ground surface (the same geometry
 * in the same place), or the grade ring. A direct child of the site, as the surfaces are, so the
 * captures find it (`siteGround`) and hide it with the site's other surfaces.
 *
 * `shows` says when a live view draws it: `'window'` (a sheet: only where the ground window veils
 * a hillside in the eye's way; wholesale the ground is a hole, not a sheet) or `'veiled'` (the
 * ring: wherever any ground is veiled). A capture shows both by setting `visible` itself.
 */
export declare function GroundVeil({ geometry, material, position, rotation, shows, }: {
    geometry: BufferGeometry;
    material: Material;
    position?: [number, number, number];
    rotation?: [number, number, number];
    shows?: 'window' | 'veiled';
}): import("react").JSX.Element;
export {};
//# sourceMappingURL=ground-veil.d.ts.map