import { Vector3D } from '@awayjs/core';
import { ShaderBase, _Render_RenderableBase, AnimationRegisterData } from '@awayjs/renderer';
import { AnimationElements } from '../data/AnimationElements';
import { ParticleAccelerationNode } from '../nodes/ParticleAccelerationNode';
import { ParticleAnimator } from '../ParticleAnimator';
import { ParticleStateBase } from './ParticleStateBase';
/**
 * ...
 */
export declare class ParticleAccelerationState extends ParticleStateBase {
    /** @private */
    static ACCELERATION_INDEX: number;
    private _particleAccelerationNode;
    private _acceleration;
    private _halfAcceleration;
    /**
     * Defines the acceleration vector of the state, used when in global mode.
     */
    get acceleration(): Vector3D;
    set acceleration(value: Vector3D);
    constructor(animator: ParticleAnimator, particleAccelerationNode: ParticleAccelerationNode);
    /**
     * @inheritDoc
     */
    setRenderState(shader: ShaderBase, renderable: _Render_RenderableBase, animationElements: AnimationElements, animationRegisterData: AnimationRegisterData): void;
    private updateAccelerationData;
}
//# sourceMappingURL=ParticleAccelerationState.d.ts.map