import { ShaderRegisterCache } from '@awayjs/stage';
import { ShaderBase, AnimationRegisterData } from '@awayjs/renderer';
import { ParticleFollowState } from '../states/ParticleFollowState';
import { ParticleAnimationSet } from '../ParticleAnimationSet';
import { AnimatorBase } from '../AnimatorBase';
import { ParticleNodeBase } from './ParticleNodeBase';
/**
 * A particle animation node used to create a follow behaviour on a particle system.
 */
export declare class ParticleFollowNode extends ParticleNodeBase {
    /** @private */
    _iUsesPosition: boolean;
    /** @private */
    _iUsesRotation: boolean;
    /** @private */
    _iSmooth: boolean;
    /**
     * Creates a new <code>ParticleFollowNode</code>
     *
     * @param    [optional] usesPosition     Defines wehether the individual particle reacts to the position of the target.
     * @param    [optional] usesRotation     Defines wehether the individual particle reacts to the rotation of the target.
     * @param    [optional] smooth     Defines wehether the state calculate the interpolated value.
     */
    constructor(usesPosition?: boolean, usesRotation?: boolean, smooth?: boolean);
    /**
     * @inheritDoc
     */
    getAGALVertexCode(shader: ShaderBase, animationSet: ParticleAnimationSet, registerCache: ShaderRegisterCache, animationRegisterData: AnimationRegisterData): string;
    /**
     * @inheritDoc
     */
    getAnimationState(animator: AnimatorBase): ParticleFollowState;
}
//# sourceMappingURL=ParticleFollowNode.d.ts.map