import { ColorRepresentation, ShaderMaterial } from 'three';
/**
 * Parameters for {@link ScreenPointsMaterial}.
 */
export declare class ScreenPointsMaterialParameters {
    /** Base color for points. */
    color?: ColorRepresentation;
    /** Size unit mode. If true then points size in real space units else in screen space units. */
    worldUnits?: boolean;
    /** Ability for processing depth test for points. */
    depthTest?: boolean;
    /** Ability for points transparency. */
    transparent?: boolean;
    /** Distance from camera for reducing near points screen size when {@link worldUnits}=true. */
    reduceNearScreenSize?: number;
    /** If the point is closer than this distance, its size will be kept constant in the screen space.
     *  Works only with perspective camera and {@link worldUnits}=true. */
    nearScreenCorrection?: number;
    /** If the point size is bigger than this factor, its size will be kept constant in the screen space.
     *  Works only with orthogonal camera and {@link worldUnits}=true. */
    maxScreenCorrection?: number;
}
/**
 * Material for screen points. Using in {@link ScreenPoints} object.
 */
export declare class ScreenPointsMaterial extends ShaderMaterial {
    /** Size unit mode. If true then points size in real space units else in screen space units. */
    worldUnits: boolean;
    /** If the point is closer than this distance, its size will be kept constant in the screen space.
     *  Works only with perspective camera and {@link worldUnits}=true. */
    nearScreenCorrection: number;
    /** If the point size is bigger than this factor, its size will be kept constant in the screen space.
     *  Works only with orthogonal camera and {@link worldUnits}=true. */
    maxScreenCorrection: number;
    size: number;
    sizeAttenuation: boolean;
    /** Distance from camera for reducing near points screen size when {@link worldUnits}=true. */
    reduceNearScreenSize: number;
    static setResolution(width: number, height: number, koef: number): void;
    /**
     * @param parameters - initial material parameters.
     */
    constructor(parameters: ScreenPointsMaterialParameters);
}