import { CxRenderingContext } from './rendering_context';
import { CxNodePayload } from './node_payload';
import { CxXYWH, CxRGBA } from './basic_types';
export declare class CxNodePayloadViewport implements CxNodePayload {
    viewport: CxXYWH;
    clear_color: CxRGBA;
    clear_depth_buffer: boolean;
    clear_color_buffer: boolean;
    enable_depth_test: boolean;
    _stored_current_relative_viewport: CxXYWH;
    constructor();
    enter(context: CxRenderingContext): void;
    exit(context: CxRenderingContext): void;
}