/**
 * @param rgb
 * @param alpha
 * @param out
 * @param offset
 * @internal
 */
export declare function colorToUniform(rgb: number, alpha: number, out: Float32Array, offset: number): void;
/**
 * @param abgr
 * @param out
 * @param offset
 * @internal
 */
export declare function color32BitToUniform(abgr: number, out: Float32Array, offset: number): void;