import * as THREE from 'three';
import { BaseScatterSystem, BaseScatterConfig, ChunkData } from '../core';
/**
 * Configuration for mesh surface scatter
 */
export interface MeshScatterConfig extends BaseScatterConfig {
    /** Mesh to scatter instances on */
    surfaceMesh: THREE.Mesh;
    /** Maximum slope in degrees for placement */
    slopeLimit?: number;
}
/**
 * Scatter system using THREE.MeshSurfaceSampler for mesh-based distribution
 */
export declare class MeshScatterSystem extends BaseScatterSystem {
    private meshSampler;
    private meshBounds;
    private slopeLimit;
    constructor(config: MeshScatterConfig);
    protected initializeDistribution(): Promise<void>;
    protected updateChunks(): void;
    protected populateChunk(chunk: ChunkData, centerX: number, centerZ: number): void;
    /**
     * Update the surface mesh and regenerate
     */
    updateMesh(mesh: THREE.Mesh): void;
}
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