import { ExtendedShaderPass, IPass, IWebGLRenderer, ValOrFunc, WebGLRenderTarget } from 'threepipe';
export declare class BilateralFilterPass extends ExtendedShaderPass implements IPass {
    target?: ValOrFunc<WebGLRenderTarget | undefined>;
    smoothEnabled: boolean;
    edgeSharpness: number;
    constructor(target?: ValOrFunc<WebGLRenderTarget | undefined>, sourceAccessor?: string);
    render(renderer: IWebGLRenderer, writeBuffer: WebGLRenderTarget, _readBuffer: WebGLRenderTarget, deltaTime: number, maskActive: boolean): void;
}
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