import type { ReadonlyVec } from "@thi.ng/vectors";
/**
 * Returns quaternion describing the rotation from direction vector
 * `from` -> `to`. If `normalize` is true (default), first normalizes
 * the vectors (not modifying original).
 *
 * @param from -
 * @param to -
 * @param normalize -
 */
export declare const alignmentQuat: (from: ReadonlyVec, to: ReadonlyVec, normalize?: boolean) => import("@thi.ng/vectors").Vec;
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