import { type CeilingNode, type CeilingSurfaceCell, useScene } from '@pascal-app/core';
import * as THREE from 'three';
/** Name of the meshes a ceiling draws its paint regions with, one per region. */
export declare const CEILING_REGION_MESH = "ceiling-region";
/**
 * The material a ceiling draws a region finish with. The ceiling's renderer
 * owns materials (theme, textures, scene materials) and leaves this on the
 * registered mesh; the system builds geometry and asks it.
 */
export type CeilingRegionMaterial = (finish: CeilingSurfaceCell['finish']) => THREE.Material;
type SceneNodes = ReturnType<typeof useScene.getState>['nodes'];
export declare const CeilingSystem: () => null;
/**
 * Updates the geometry for a single ceiling
 */
export declare function updateCeilingGeometry(node: CeilingNode, mesh: THREE.Mesh, extraHoles?: Array<Array<[number, number]>>, nodes?: SceneNodes): void;
/**
 * Generates flat ceiling geometry from polygon (no extrusion).
 *
 * `extraHoles` are transient, derived cutouts (e.g. recessed-fixture
 * footprints) that are cut alongside the node's persisted `holes` but never
 * stored on the node — they are recomputed on every rebuild.
 */
export declare function generateCeilingGeometry(ceilingNode: CeilingNode, extraHoles?: Array<Array<[number, number]>>): THREE.BufferGeometry;
export {};
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