import type { Engine } from '../engine';
import type * as spec from '@galacean/effects-specification';
import type { Maskable } from './types';
import { MaskMode } from './types';
import type { Renderer } from '../render/renderer';
export declare class MaskProcessor {
    engine: Engine;
    alphaMaskEnabled: boolean;
    maskMode: MaskMode;
    maskable: Maskable | null;
    private stencilClearAction;
    constructor(engine: Engine);
    getRefValue(): number;
    setMaskOptions(data: spec.MaskOptions): void;
    drawStencilMask(renderer: Renderer): void;
}