import type { Matrix4 } from '@galacean/effects-math/es/core/matrix4';
import type { Vector3 } from '@galacean/effects-math/es/core/vector3';
import type { Texture } from '../../texture';
import type { TrailMeshProps, TrailPointOptions } from './trail-mesh';
import type { ParticleMeshProps, Point } from './particle-mesh';
import { ParticleMesh } from './particle-mesh';
import type { Mesh, Renderer } from '../../render';
import type { Engine } from '../../engine';
import { RendererComponent } from '../../components';
import type { MaskProcessor } from '../../material/mask-ref-manager';
/**
 * @since 2.0.0
 */
export declare class ParticleSystemRenderer extends RendererComponent {
    meshes: Mesh[];
    particleMesh: ParticleMesh;
    maskManager: MaskProcessor;
    private trailMesh?;
    constructor(engine: Engine, particleMeshProps?: ParticleMeshProps, trailMeshProps?: TrailMeshProps);
    onStart(): void;
    onUpdate(dt: number): void;
    render(renderer: Renderer): void;
    reset(): void;
    updateTime(now: number, delta: number): void;
    minusTimeForLoop(duration: number): void;
    updateWorldMatrix(worldMatrix: Matrix4): void;
    setVisible(visible: boolean): void;
    getTextures(): Texture[];
    setParticlePoint(index: number, point: Point): void;
    removeParticlePoint(index: number): void;
    getParticlePointColor(index: number): number[];
    hasTrail(): boolean;
    clearTrail(pointIndex: number): void;
    addTrailPoint(index: number, position: Vector3, options: TrailPointOptions): void;
    setTrailStartPosition(index: number, position: Vector3): void;
    getTrailStartPosition(index: number): Vector3;
}