import * as THREE from 'three';
import { MeshLineGeometry as MeshLineGeometryImpl, MeshLineMaterial } from 'meshline';
type BaseSettings = {
    width: number;
    length: number;
    decay: number;
    local: boolean;
    stride: number;
    interval: number;
    instanceCount: number;
};
type GeometrySettings = {
    geometry: THREE.BufferGeometry;
    material: THREE.Material;
} | {
    geometry?: never;
    material?: never;
};
export type TrailProps = {
    color?: THREE.ColorRepresentation;
    attenuation?: (width: number) => number;
    target: THREE.Object3D;
} & Partial<BaseSettings> & GeometrySettings;
export type MeshLineGeometry = THREE.Mesh & MeshLineGeometryImpl;
export declare class Trail extends THREE.Group {
    trailParams: {
        width: number;
        length: number;
        decay: number;
        local: boolean;
        stride: number;
        interval: number;
        instanceCount: number;
        color: THREE.ColorRepresentation;
        attenuation: (width: number) => number;
        target: THREE.Object3D;
    };
    trailData: {
        isUsingCustomGeometry: boolean;
        points: Float32Array;
        geometry: MeshLineGeometryImpl | THREE.BufferGeometry;
        material: MeshLineMaterial | THREE.Material;
        mesh: THREE.Mesh | THREE.InstancedMesh;
    };
    private trailTemp;
    constructor(props: TrailProps);
    rebuildTrail(props: TrailProps): void;
    updateSize(w: number, h: number): void;
    private updateTrailPoints;
    private updateLineMesh;
    private updateInstances;
    update(): void;
}
export {};