three.js/src/materials/PointsMaterial.d.ts

import { Material, MaterialParameters } from './Material';
import { Color } from './../math/Color';
import { Texture } from './../textures/Texture';

// MultiMaterial does not inherit the Material class in the original code. However, it should treat as Material class.
// See tests/canvas/canvas_materials.ts.
/**
 * @deprecated Use an Array instead.
 */
export class MultiMaterial extends Material {

	constructor( materials?: Material[] );

	isMultiMaterial: true;

	materials: Material[];

	toJSON( meta: any ): any;

}

/**
 * @deprecated Use {@link MultiMaterial} instead.
 */

export interface PointsMaterialParameters extends MaterialParameters {
	color?: Color | string | number;
	map?: Texture;
	size?: number;
	sizeAttenuation?: boolean;
}

export class PointsMaterial extends Material {

	constructor( parameters?: PointsMaterialParameters );

	color: Color;
	map: Texture | null;
	size: number;
	sizeAttenuation: boolean;

	setValues( parameters: PointsMaterialParameters ): void;

}