import * as quat from '../glmatrix/quat';
import * as vec3 from '../glmatrix/vec3';
import ClayNode from '../Node';
interface SamplerTrackOpts {
    name?: string;
    target?: ClayNode;
}
/**
 * SamplerTrack manages `position`, `rotation`, `scale` tracks in animation of single scene node.
 * @constructor
 * @alias clay.animation.SamplerTrack
 * @param {Object} [opts]
 * @param {string} [opts.name] Track name
 * @param {clay.Node} [opts.target] Target node's transform will updated automatically
 */
declare class SamplerTrack {
    name?: string;
    target?: ClayNode;
    position: vec3.Vec3Array;
    rotation: quat.QuatArray;
    scale: vec3.Vec3Array;
    channels: {
        time: Float32Array;
        position?: Float32Array | undefined;
        rotation?: Float32Array | undefined;
        scale?: Float32Array | undefined;
    };
    life: number;
    private _cacheKey;
    private _cacheTime;
    constructor(opts?: SamplerTrackOpts);
    setTime(time: number): void;
    /**
     * Update transform of target node manually
     */
    updateTarget(): void;
    /**
     * @return {number}
     */
    getMaxTime(): number;
    /**
     * @param {number} startTime
     * @param {number} endTime
     * @return {clay.animation.SamplerTrack}
     */
    getSubTrack(startTime: number, endTime: number): SamplerTrack;
    _findRange(time: number): number[];
    /**
     * 1D blending between two clips
     */
    blend1D(t1: SamplerTrack, t2: SamplerTrack, w: number): void;
    /**
     * 2D blending between three clips
     */
    blend2D(t1: SamplerTrack, t2: SamplerTrack, t3: SamplerTrack, f: number, g: number): void;
    /**
     * Additive blending between two clips
     */
    additiveBlend(t1: SamplerTrack, t2: SamplerTrack): void;
    /**
     * Subtractive blending between two clips
     */
    subtractiveBlend(t1: SamplerTrack, t2: SamplerTrack): void;
    /**
     * Clone a new SamplerTrack
     * @return {clay.animation.SamplerTrack}
     */
    clone(): SamplerTrack;
}
export default SamplerTrack;