import type { WebGlContextWrapper } from '../../../lib/WebGlContextWrapper.js';
/**
 * Allocate big memory chunk that we
 * can re-use to draw quads
 *
 * @param glw
 * @param size
 */
export declare function createIndexBuffer(glw: WebGlContextWrapper, size: number): WebGLBuffer | null;
/**
 * Checks if an object is of type HTMLImageElement.
 * This is used because we cant check for HTMLImageElement directly when the
 * renderer is running in a seperate web worker context.
 *
 * @param obj
 * @returns
 */
export declare function isHTMLImageElement(obj: unknown): obj is HTMLImageElement;
export interface WebGlColor {
    raw: number;
    normalized: [number, number, number, number];
}