import CompositeNode, { CompositeNodeOutput } from './CompositeNode';
import FullscreenQuadPass from '../FullscreenQuadPass';
import Renderer from '../Renderer';
import FrameBuffer from '../FrameBuffer';
import Texture from '../Texture';
import { FragmentShaderLoose, PickFragmentTextureUniforms } from '../Shader';
import { StringKeyOf } from '../core/type';
/**
 * Filter node
 *
 *
 * @example
 * const node = new clay.CompositeFilterNode({
 *   name: 'fxaa',
 *   shader: FXAACompositeFragment,
 *   inputs: {
 *     texture: {
         node: 'scene',
 *       pin: 'color'
 *     }
 *   },
 *   // Multiple outputs is preserved for MRT support in WebGL2.0
 *   outputs: {
 *     color: {
 *       attachment: clay.FrameBuffer.COLOR_ATTACHMENT0
 *       parameters: {
 *         format: clay.Texture.RGBA,
 *         width: 512,
 *         height: 512
 *       },
 *       // Node will keep the RTT rendered in last frame
 *       keepLastFrame: true,
 *       // Force the node output the RTT rendered in last frame
 *       outputLastFrame: true
 *     }
 *   }
 * });
 *
 */
declare class FilterCompositeNode<T extends FragmentShaderLoose = FragmentShaderLoose, O extends string = 'color', S = PickFragmentTextureUniforms<T['uniforms']>> extends CompositeNode<StringKeyOf<S>, O> {
    pass: FullscreenQuadPass<T>;
    constructor(shader: T, name?: string, outputs?: Record<O, CompositeNodeOutput>);
    prepare(renderer: Renderer): void;
    render(renderer: Renderer, inputTextures: Record<keyof S, Texture>, outputTextures?: Record<O, Texture>, frameBuffer?: FrameBuffer): void;
    get material(): import("../Material").default<import("../Shader").Shader<import("../Shader").VertexShader<import("../core/type").Dict<import("../Shader").ShaderDefineValue>, {}, {
        pos: {
            type: "vec3";
            semantic: "POSITION" | undefined;
        };
    }, {
        v_Texcoord: {
            type: "vec2";
        };
    }, never>, T>>;
    validateInput(inputName: keyof S & string): boolean;
}
export default FilterCompositeNode;