/** Utilities to create various textures. */
export declare class TextureUtils {
    /**
     * Creates non-power-of-two (NPOT) texture.
     *
     * @param gl WebGL context.
     * @param texWidth Texture width.
     * @param texHeight Texture height.
     * @param hasAlpha Set to `true` to create texture with alpha channel.
     */
    static createNpotTexture(gl: WebGLRenderingContext | WebGL2RenderingContext, texWidth: number, texHeight: number, hasAlpha?: boolean): WebGLTexture | null;
    /**
     * Creates depth texture.
     *
     * @param gl WebGL context.
     * @param texWidth Texture width.
     * @param texHeight Texture height.
     */
    static createDepthTexture(gl: WebGLRenderingContext | WebGL2RenderingContext, texWidth: number, texHeight: number): WebGLTexture | null;
}