import type { Euler } from '@galacean/effects-math/es/core/euler';
import type { Quaternion } from '@galacean/effects-math/es/core/quaternion';
import * as spec from '@galacean/effects-specification';
import { EffectsObject } from '../effects-object';
import type { ValueGetter, Vector3Curve, BezierCurve, ColorCurve } from '../math';
import type { VFXItem } from '../vfx-item';
export interface AnimationCurve {
    path: string;
    keyFrames: ValueGetter<any>;
}
export interface PositionAnimationCurve extends AnimationCurve {
    keyFrames: Vector3Curve;
}
export interface EulerAnimationCurve extends AnimationCurve {
    keyFrames: ValueGetter<Euler>;
}
export interface RotationAnimationCurve extends AnimationCurve {
    keyFrames: ValueGetter<Quaternion>;
}
export interface ScaleAnimationCurve extends AnimationCurve {
    keyFrames: Vector3Curve;
}
export interface FloatAnimationCurve extends AnimationCurve {
    property: string;
    className: string;
    keyFrames: BezierCurve;
}
export interface ColorAnimationCurve extends AnimationCurve {
    property: string;
    className: string;
    keyFrames: ColorCurve;
}
export declare class AnimationClip extends EffectsObject {
    duration: number;
    positionCurves: PositionAnimationCurve[];
    rotationCurves: RotationAnimationCurve[];
    eulerCurves: EulerAnimationCurve[];
    scaleCurves: ScaleAnimationCurve[];
    floatCurves: FloatAnimationCurve[];
    colorCurves: ColorAnimationCurve[];
    sampleAnimation(vfxItem: VFXItem, time: number): void;
    fromData(data: spec.AnimationClipData): void;
    private findTarget;
}