import { MutableRefObject } from 'react';
import { AuraExpression } from '../../model/types.js';
export interface EyeState {
    x: number;
    y: number;
    yaw: number;
    pitch: number;
}
interface BouncePhysics {
    value: number;
    velocity: number;
}
interface UseAuraPhysicsOptions {
    expression: AuraExpression;
    globalSpeed: number;
}
interface UseAuraPhysicsResult {
    eyeState: EyeState;
    updateFrame: (containerEl: HTMLElement | null) => void;
    bounceRef: MutableRefObject<BouncePhysics>;
}
export declare function useAuraPhysics({ expression, globalSpeed, }: UseAuraPhysicsOptions): UseAuraPhysicsResult;
export {};
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