import Shader, { FragmentShader } from './Shader';
import Material from './Material';
import { fullscreenQuadPassVertex } from './shader/source/compositor/vertex.glsl';
import Notifier from './core/Notifier';
import type { Color } from './core/type';
import type Renderer from './Renderer';
import type { RenderHooks } from './Renderer';
import type FrameBuffer from './FrameBuffer';
interface FullscreenQuadPassOpts {
    clearColor?: Color;
    clearDepth?: boolean;
}
declare class FullscreenQuadPass<T extends FragmentShader = FragmentShader> extends Notifier {
    material: Material<Shader<typeof fullscreenQuadPassVertex, T>>;
    clearColor?: Color | boolean;
    clearDepth?: boolean;
    beforeRender?: (gl: WebGL2RenderingContext) => void;
    afterRender?: (gl: WebGL2RenderingContext) => void;
    constructor(frag: T, opts?: Partial<FullscreenQuadPassOpts>);
    render(renderer: Renderer, frameBuffer?: FrameBuffer): void;
    /**
     * Simply do quad rendering
     */
    renderQuad(renderer: Renderer, frameBuffer?: FrameBuffer, prepare?: RenderHooks['prepare'], cleanup?: RenderHooks['cleanup']): void;
    /**
     * @param  {clay.Renderer} renderer
     */
    dispose(renderer: Renderer): void;
}
export default FullscreenQuadPass;